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Difference From v0.15.0 To trunk

2024-05-07
13:31
Create zettel with file mode 0666 (instead of 0600) ... (Leaf check-in: 0f043ac65e user: stern tags: trunk)
11:07
Update dependencies ... (check-in: 6f3e8a6f77 user: stern tags: trunk)
2023-10-27
06:08
Increase version to 0.16.0-dev to begin next development cycle ... (check-in: bd019d898d user: stern tags: trunk)
2023-10-26
16:03
Version 0.15.0 ... (check-in: 7cde0fccea user: stern tags: trunk, release, v0.15.0)
2023-10-23
14:52
Start re-indexing zettel via API and WebUI (query action REINDEX) ... (check-in: 382096929c user: stern tags: trunk)

Changes to .fossil-settings/ignore-glob.

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bin/*
releases/*
parser/pikchr/*.out


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bin/*
releases/*

Changes to Makefile.

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## Copyright (c) 2020-present Detlef Stern
##
## This file is part of Zettelstore.
##
## Zettelstore is licensed under the latest version of the EUPL (European Union
## Public License). Please see file LICENSE.txt for your rights and obligations
## under this license.

.PHONY:  check relcheck api build release clean

check:
	go run tools/build.go check

relcheck:
	go run tools/build.go relcheck

api:
	go run tools/build.go testapi

version:
	@echo $(shell go run tools/build.go version)

build:
	go run tools/build.go build

release:
	go run tools/build.go release

clean:
	go run tools/build.go clean









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## Copyright (c) 2020-present Detlef Stern
##
## This file is part of Zettelstore.
##
## Zettelstore is licensed under the latest version of the EUPL (European Union
## Public License). Please see file LICENSE.txt for your rights and obligations
## under this license.

.PHONY:  check relcheck api version build release clean

check:
	go run tools/check/check.go

relcheck:
	go run tools/check/check.go -r

api:
	go run tools/testapi/testapi.go

version:
	@echo $(shell go run tools/build/build.go version)

build:
	go run tools/build/build.go build

release:
	go run tools/build/build.go release

clean:
	go run tools/clean/clean.go

Changes to README.md.

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gradually, one major focus is a long-term store of these notes, hence the name
&ldquo;Zettelstore&rdquo;.

To get an initial impression, take a look at the
[manual](https://zettelstore.de/manual/). It is a live example of the
zettelstore software, running in read-only mode.

[Zettelstore Client](https://zettelstore.de/client) provides client
software to access Zettelstore via its API more easily, [Zettelstore
Contrib](https://zettelstore.de/contrib) contains contributed software, which
often connects to Zettelstore via its API. Some of the software packages may be
experimental.

The software, including the manual, is licensed
under the [European Union Public License 1.2 (or
later)](https://zettelstore.de/home/file?name=LICENSE.txt&ci=trunk).







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gradually, one major focus is a long-term store of these notes, hence the name
&ldquo;Zettelstore&rdquo;.

To get an initial impression, take a look at the
[manual](https://zettelstore.de/manual/). It is a live example of the
zettelstore software, running in read-only mode.

[Zettelstore Client](https://t73f.de/r/zsc) provides client software to access
Zettelstore via its API more easily, [Zettelstore
Contrib](https://zettelstore.de/contrib) contains contributed software, which
often connects to Zettelstore via its API. Some of the software packages may be
experimental.

The software, including the manual, is licensed
under the [European Union Public License 1.2 (or
later)](https://zettelstore.de/home/file?name=LICENSE.txt&ci=trunk).

Changes to VERSION.

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0.15.0
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0.18.0-dev

Changes to ast/ast.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package ast provides the abstract syntax tree for parsed zettel content.
package ast

import (
	"net/url"








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

// Package ast provides the abstract syntax tree for parsed zettel content.
package ast

import (
	"net/url"

Changes to ast/block.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package ast

import "zettelstore.de/client.fossil/attrs"

// Definition of Block nodes.

// BlockSlice is a slice of BlockNodes.
type BlockSlice []BlockNode

func (*BlockSlice) blockNode() { /* Just a marker */ }








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package ast

import "t73f.de/r/zsc/attrs"

// Definition of Block nodes.

// BlockSlice is a slice of BlockNodes.
type BlockSlice []BlockNode

func (*BlockSlice) blockNode() { /* Just a marker */ }

Changes to ast/inline.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package ast

import (
	"unicode/utf8"

	"zettelstore.de/client.fossil/attrs"
)

// Definitions of inline nodes.

// InlineSlice is a list of BlockNodes.
type InlineSlice []InlineNode









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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package ast

import (
	"unicode/utf8"

	"t73f.de/r/zsc/attrs"
)

// Definitions of inline nodes.

// InlineSlice is a list of BlockNodes.
type InlineSlice []InlineNode

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// FormatKind specifies the format that is applied to the inline nodes.
type FormatKind int

// Constants for FormatCode
const (
	_            FormatKind = iota
	FormatEmph              // Emphasized text.
	FormatStrong            // Strongly emphasized text.
	FormatInsert            // Inserted text.
	FormatDelete            // Deleted text.
	FormatSuper             // Superscripted text.
	FormatSub               // SubscriptedText.
	FormatQuote             // Quoted text.

	FormatSpan              // Generic inline container.
)

func (*FormatNode) inlineNode() { /* Just a marker */ }

// WalkChildren walks to the formatted text.
func (fn *FormatNode) WalkChildren(v Visitor) { Walk(v, &fn.Inlines) }








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// FormatKind specifies the format that is applied to the inline nodes.
type FormatKind int

// Constants for FormatCode
const (
	_            FormatKind = iota
	FormatEmph              // Emphasized text
	FormatStrong            // Strongly emphasized text
	FormatInsert            // Inserted text
	FormatDelete            // Deleted text
	FormatSuper             // Superscripted text
	FormatSub               // SubscriptedText
	FormatQuote             // Quoted text
	FormatMark              // Marked text
	FormatSpan              // Generic inline container
)

func (*FormatNode) inlineNode() { /* Just a marker */ }

// WalkChildren walks to the formatted text.
func (fn *FormatNode) WalkChildren(v Visitor) { Walk(v, &fn.Inlines) }

Changes to ast/ref.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package ast

import (
	"net/url"
	"strings"


	"zettelstore.de/z/zettel/id"
)

// QueryPrefix is the prefix that denotes a query expression.
const QueryPrefix = "query:"

// ParseReference parses a string and returns a reference.
func ParseReference(s string) *Reference {
	if invalidReference(s) {
		return &Reference{URL: nil, Value: s, State: RefStateInvalid}
	}
	if strings.HasPrefix(s, QueryPrefix) {








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package ast

import (
	"net/url"
	"strings"

	"t73f.de/r/zsc/api"
	"zettelstore.de/z/zettel/id"
)

// QueryPrefix is the prefix that denotes a query expression.
const QueryPrefix = api.QueryPrefix

// ParseReference parses a string and returns a reference.
func ParseReference(s string) *Reference {
	if invalidReference(s) {
		return &Reference{URL: nil, Value: s, State: RefStateInvalid}
	}
	if strings.HasPrefix(s, QueryPrefix) {

Changes to ast/ref_test.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package ast_test

import (
	"testing"









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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package ast_test

import (
	"testing"

Changes to ast/walk.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package ast

// Visitor is a visitor for walking the AST.
type Visitor interface {
	Visit(node Node) Visitor








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package ast

// Visitor is a visitor for walking the AST.
type Visitor interface {
	Visit(node Node) Visitor

Changes to ast/walk_test.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package ast_test

import (
	"testing"

	"zettelstore.de/client.fossil/attrs"
	"zettelstore.de/z/ast"
)

func BenchmarkWalk(b *testing.B) {
	root := ast.BlockSlice{
		&ast.HeadingNode{
			Inlines: ast.CreateInlineSliceFromWords("A", "Simple", "Heading"),








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package ast_test

import (
	"testing"

	"t73f.de/r/zsc/attrs"
	"zettelstore.de/z/ast"
)

func BenchmarkWalk(b *testing.B) {
	root := ast.BlockSlice{
		&ast.HeadingNode{
			Inlines: ast.CreateInlineSliceFromWords("A", "Simple", "Heading"),
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				Ref:     &ast.Reference{Value: "http://zettelstore.de"},
				Inlines: ast.CreateInlineSliceFromWords("URL", "text."),
			},
		),
	}
	v := benchVisitor{}
	b.ResetTimer()
	for n := 0; n < b.N; n++ {
		ast.Walk(&v, &root)
	}
}

type benchVisitor struct{}

func (bv *benchVisitor) Visit(ast.Node) ast.Visitor { return bv }







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				Ref:     &ast.Reference{Value: "http://zettelstore.de"},
				Inlines: ast.CreateInlineSliceFromWords("URL", "text."),
			},
		),
	}
	v := benchVisitor{}
	b.ResetTimer()
	for range b.N {
		ast.Walk(&v, &root)
	}
}

type benchVisitor struct{}

func (bv *benchVisitor) Visit(ast.Node) ast.Visitor { return bv }

Changes to auth/auth.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package auth provides services for authentification / authorization.
package auth

import (
	"time"








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

// Package auth provides services for authentification / authorization.
package auth

import (
	"time"

Changes to auth/cred/cred.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package cred provides some function for handling credentials.
package cred

import (
	"bytes"








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

// Package cred provides some function for handling credentials.
package cred

import (
	"bytes"

Changes to auth/impl/digest.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2023-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package impl

import (
	"bytes"
	"crypto"
	"crypto/hmac"
	"encoding/base64"

	"zettelstore.de/sx.fossil"
	"zettelstore.de/sx.fossil/sxreader"
)

var encoding = base64.RawURLEncoding

const digestAlg = crypto.SHA384

func sign(claim sx.Object, secret []byte) ([]byte, error) {
	var buf bytes.Buffer
	sx.Print(&buf, claim)



	token := make([]byte, encoding.EncodedLen(buf.Len()))
	encoding.Encode(token, buf.Bytes())

	digest := hmac.New(digestAlg.New, secret)
	_, err := digest.Write(buf.Bytes())
	if err != nil {
		return nil, err
	}
	dig := digest.Sum(nil)
	encDig := make([]byte, encoding.EncodedLen(len(dig)))
	encoding.Encode(encDig, dig)









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//-----------------------------------------------------------------------------
// Copyright (c) 2023-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2023-present Detlef Stern
//-----------------------------------------------------------------------------

package impl

import (
	"bytes"
	"crypto"
	"crypto/hmac"
	"encoding/base64"

	"t73f.de/r/sx"
	"t73f.de/r/sx/sxreader"
)

var encoding = base64.RawURLEncoding

const digestAlg = crypto.SHA384

func sign(claim sx.Object, secret []byte) ([]byte, error) {
	var buf bytes.Buffer
	_, err := sx.Print(&buf, claim)
	if err != nil {
		return nil, err
	}
	token := make([]byte, encoding.EncodedLen(buf.Len()))
	encoding.Encode(token, buf.Bytes())

	digest := hmac.New(digestAlg.New, secret)
	_, err = digest.Write(buf.Bytes())
	if err != nil {
		return nil, err
	}
	dig := digest.Sum(nil)
	encDig := make([]byte, encoding.EncodedLen(len(dig)))
	encoding.Encode(encDig, dig)

Changes to auth/impl/impl.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package impl provides services for authentification / authorization.
package impl

import (
	"errors"
	"hash/fnv"
	"io"
	"time"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/client.fossil/sexp"
	"zettelstore.de/sx.fossil"
	"zettelstore.de/z/auth"
	"zettelstore.de/z/auth/policy"
	"zettelstore.de/z/box"
	"zettelstore.de/z/config"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"








>
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>











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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

// Package impl provides services for authentification / authorization.
package impl

import (
	"errors"
	"hash/fnv"
	"io"
	"time"

	"t73f.de/r/sx"
	"t73f.de/r/zsc/api"
	"t73f.de/r/zsc/sexp"
	"zettelstore.de/z/auth"
	"zettelstore.de/z/auth/policy"
	"zettelstore.de/z/box"
	"zettelstore.de/z/config"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
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	if !ok || subject == "" {
		return nil, ErrNoIdent
	}

	now := time.Now().Round(time.Second)
	sClaim := sx.MakeList(
		sx.Int64(kind),
		sx.String(subject),
		sx.Int64(now.Unix()),
		sx.Int64(now.Add(d).Unix()),
		sx.Int64(ident.Zid),
	)
	return sign(sClaim, a.secret)
}








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	if !ok || subject == "" {
		return nil, ErrNoIdent
	}

	now := time.Now().Round(time.Second)
	sClaim := sx.MakeList(
		sx.Int64(kind),
		sx.MakeString(subject),
		sx.Int64(now.Unix()),
		sx.Int64(now.Add(d).Unix()),
		sx.Int64(ident.Zid),
	)
	return sign(sClaim, a.secret)
}

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	vals, err := sexp.ParseList(obj, "isiii")
	if err != nil {
		return ErrMalformedToken
	}
	if auth.TokenKind(vals[0].(sx.Int64)) != k {
		return ErrOtherKind
	}
	ident := vals[1].(sx.String)
	if ident == "" {
		return ErrNoIdent
	}
	issued := time.Unix(int64(vals[2].(sx.Int64)), 0)
	expires := time.Unix(int64(vals[3].(sx.Int64)), 0)
	now := time.Now().Round(time.Second)
	if expires.Before(now) {
		return ErrTokenExpired
	}
	zid := id.Zid(vals[4].(sx.Int64))
	if !zid.IsValid() {
		return ErrNoZid
	}

	tokenData.Ident = ident.String()
	tokenData.Issued = issued
	tokenData.Now = now
	tokenData.Expires = expires
	tokenData.Zid = zid
	return nil
}








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|







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	vals, err := sexp.ParseList(obj, "isiii")
	if err != nil {
		return ErrMalformedToken
	}
	if auth.TokenKind(vals[0].(sx.Int64)) != k {
		return ErrOtherKind
	}
	ident := vals[1].(sx.String).GetValue()
	if ident == "" {
		return ErrNoIdent
	}
	issued := time.Unix(int64(vals[2].(sx.Int64)), 0)
	expires := time.Unix(int64(vals[3].(sx.Int64)), 0)
	now := time.Now().Round(time.Second)
	if expires.Before(now) {
		return ErrTokenExpired
	}
	zid := id.Zid(vals[4].(sx.Int64))
	if !zid.IsValid() {
		return ErrNoZid
	}

	tokenData.Ident = string(ident)
	tokenData.Issued = issued
	tokenData.Now = now
	tokenData.Expires = expires
	tokenData.Zid = zid
	return nil
}

Changes to auth/policy/anon.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package policy

import (
	"zettelstore.de/z/auth"
	"zettelstore.de/z/config"








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package policy

import (
	"zettelstore.de/z/auth"
	"zettelstore.de/z/config"

Changes to auth/policy/box.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package policy

import (
	"context"









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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package policy

import (
	"context"

Changes to auth/policy/default.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package policy

import (
	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/auth"
	"zettelstore.de/z/zettel/meta"
)

type defaultPolicy struct {
	manager auth.AuthzManager
}








>
>
>





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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package policy

import (
	"t73f.de/r/zsc/api"
	"zettelstore.de/z/auth"
	"zettelstore.de/z/zettel/meta"
)

type defaultPolicy struct {
	manager auth.AuthzManager
}

Changes to auth/policy/owner.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package policy

import (
	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/auth"
	"zettelstore.de/z/config"
	"zettelstore.de/z/zettel/meta"
)

type ownerPolicy struct {
	manager    auth.AuthzManager








>
>
>





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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package policy

import (
	"t73f.de/r/zsc/api"
	"zettelstore.de/z/auth"
	"zettelstore.de/z/config"
	"zettelstore.de/z/zettel/meta"
)

type ownerPolicy struct {
	manager    auth.AuthzManager

Changes to auth/policy/policy.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package policy provides some interfaces and implementation for authorizsation policies.
package policy

import (
	"zettelstore.de/z/auth"








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

// Package policy provides some interfaces and implementation for authorizsation policies.
package policy

import (
	"zettelstore.de/z/auth"

Changes to auth/policy/policy_test.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package policy

import (
	"fmt"
	"testing"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/auth"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

func TestPolicies(t *testing.T) {
	t.Parallel()








>
>
>








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package policy

import (
	"fmt"
	"testing"

	"t73f.de/r/zsc/api"
	"zettelstore.de/z/auth"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

func TestPolicies(t *testing.T) {
	t.Parallel()

Changes to auth/policy/readonly.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package policy

import "zettelstore.de/z/zettel/meta"

type roPolicy struct{}








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>







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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package policy

import "zettelstore.de/z/zettel/meta"

type roPolicy struct{}

Changes to box/box.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package box provides a generic interface to zettel boxes.
package box

import (
	"context"
	"errors"
	"fmt"
	"io"
	"time"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/query"
	"zettelstore.de/z/zettel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

// BaseBox is implemented by all Zettel boxes.








>
>
>












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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

// Package box provides a generic interface to zettel boxes.
package box

import (
	"context"
	"errors"
	"fmt"
	"io"
	"time"

	"t73f.de/r/zsc/api"
	"zettelstore.de/z/query"
	"zettelstore.de/z/zettel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

// BaseBox is implemented by all Zettel boxes.

Changes to box/compbox/compbox.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package compbox provides zettel that have computed content.
package compbox

import (
	"context"
	"net/url"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/box"
	"zettelstore.de/z/box/manager"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/logger"
	"zettelstore.de/z/query"
	"zettelstore.de/z/zettel"
	"zettelstore.de/z/zettel/id"








>
>
>









|







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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

// Package compbox provides zettel that have computed content.
package compbox

import (
	"context"
	"net/url"

	"t73f.de/r/zsc/api"
	"zettelstore.de/z/box"
	"zettelstore.de/z/box/manager"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/logger"
	"zettelstore.de/z/query"
	"zettelstore.de/z/zettel"
	"zettelstore.de/z/zettel/id"
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	meta    func(id.Zid) *meta.Meta
	content func(*meta.Meta) []byte
}{
	id.MustParse(api.ZidVersion):              {genVersionBuildM, genVersionBuildC},
	id.MustParse(api.ZidHost):                 {genVersionHostM, genVersionHostC},
	id.MustParse(api.ZidOperatingSystem):      {genVersionOSM, genVersionOSC},
	id.MustParse(api.ZidLog):                  {genLogM, genLogC},

	id.MustParse(api.ZidBoxManager):           {genManagerM, genManagerC},
	id.MustParse(api.ZidMetadataKey):          {genKeysM, genKeysC},
	id.MustParse(api.ZidParser):               {genParserM, genParserC},
	id.MustParse(api.ZidStartupConfiguration): {genConfigZettelM, genConfigZettelC},
}

// Get returns the one program box.







>







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	meta    func(id.Zid) *meta.Meta
	content func(*meta.Meta) []byte
}{
	id.MustParse(api.ZidVersion):              {genVersionBuildM, genVersionBuildC},
	id.MustParse(api.ZidHost):                 {genVersionHostM, genVersionHostC},
	id.MustParse(api.ZidOperatingSystem):      {genVersionOSM, genVersionOSC},
	id.MustParse(api.ZidLog):                  {genLogM, genLogC},
	id.MustParse(api.ZidMemory):               {genMemoryM, genMemoryC},
	id.MustParse(api.ZidBoxManager):           {genManagerM, genManagerC},
	id.MustParse(api.ZidMetadataKey):          {genKeysM, genKeysC},
	id.MustParse(api.ZidParser):               {genParserM, genParserC},
	id.MustParse(api.ZidStartupConfiguration): {genConfigZettelM, genConfigZettelC},
}

// Get returns the one program box.

Changes to box/compbox/config.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package compbox

import (
	"bytes"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

func genConfigZettelM(zid id.Zid) *meta.Meta {
	if myConfig == nil {








>
>
>







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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package compbox

import (
	"bytes"

	"t73f.de/r/zsc/api"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

func genConfigZettelM(zid id.Zid) *meta.Meta {
	if myConfig == nil {

Changes to box/compbox/keys.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package compbox

import (
	"bytes"
	"fmt"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

func genKeysM(zid id.Zid) *meta.Meta {
	m := meta.New(zid)








>
>
>








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package compbox

import (
	"bytes"
	"fmt"

	"t73f.de/r/zsc/api"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

func genKeysM(zid id.Zid) *meta.Meta {
	m := meta.New(zid)

Changes to box/compbox/log.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package compbox

import (
	"bytes"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

func genLogM(zid id.Zid) *meta.Meta {
	m := meta.New(zid)
	m.Set(api.KeyTitle, "Zettelstore Log")
	m.Set(api.KeySyntax, meta.SyntaxText)
	m.Set(api.KeyCreated, kernel.Main.GetConfig(kernel.CoreService, kernel.CoreStarted).(string))
	m.Set(api.KeyModified, kernel.Main.GetLastLogTime().Local().Format(id.ZidLayout))
	return m
}

func genLogC(*meta.Meta) []byte {
	const tsFormat = "2006-01-02 15:04:05.999999"
	entries := kernel.Main.RetrieveLogEntries()
	var buf bytes.Buffer








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package compbox

import (
	"bytes"

	"t73f.de/r/zsc/api"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

func genLogM(zid id.Zid) *meta.Meta {
	m := meta.New(zid)
	m.Set(api.KeyTitle, "Zettelstore Log")
	m.Set(api.KeySyntax, meta.SyntaxText)
	m.Set(api.KeyCreated, kernel.Main.GetConfig(kernel.CoreService, kernel.CoreStarted).(string))
	m.Set(api.KeyModified, kernel.Main.GetLastLogTime().Local().Format(id.TimestampLayout))
	return m
}

func genLogC(*meta.Meta) []byte {
	const tsFormat = "2006-01-02 15:04:05.999999"
	entries := kernel.Main.RetrieveLogEntries()
	var buf bytes.Buffer

Changes to box/compbox/manager.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package compbox

import (
	"bytes"
	"fmt"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

func genManagerM(zid id.Zid) *meta.Meta {
	m := meta.New(zid)








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package compbox

import (
	"bytes"
	"fmt"

	"t73f.de/r/zsc/api"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

func genManagerM(zid id.Zid) *meta.Meta {
	m := meta.New(zid)

Added box/compbox/memory.go.

























































































































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//-----------------------------------------------------------------------------
// Copyright (c) 2024-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2024-present Detlef Stern
//-----------------------------------------------------------------------------

package compbox

import (
	"bytes"
	"fmt"
	"os"
	"runtime"

	"t73f.de/r/zsc/api"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

func genMemoryM(zid id.Zid) *meta.Meta {
	if myConfig == nil {
		return nil
	}
	m := meta.New(zid)
	m.Set(api.KeyTitle, "Zettelstore Memory")
	m.Set(api.KeyCreated, kernel.Main.GetConfig(kernel.CoreService, kernel.CoreStarted).(string))
	m.Set(api.KeyVisibility, api.ValueVisibilityExpert)
	return m
}

func genMemoryC(*meta.Meta) []byte {
	pageSize := os.Getpagesize()
	var m runtime.MemStats
	runtime.GC()
	runtime.ReadMemStats(&m)

	var buf bytes.Buffer
	buf.WriteString("|=Name|=Value>\n")
	fmt.Fprintf(&buf, "|Page Size|%d\n", pageSize)
	fmt.Fprintf(&buf, "|Pages|%d\n", m.HeapSys/uint64(pageSize))
	fmt.Fprintf(&buf, "|Heap Objects|%d\n", m.HeapObjects)
	fmt.Fprintf(&buf, "|Heap Sys (KiB)|%d\n", m.HeapSys/1024)
	fmt.Fprintf(&buf, "|Heap Inuse (KiB)|%d\n", m.HeapInuse/1024)
	debug := kernel.Main.GetConfig(kernel.CoreService, kernel.CoreDebug).(bool)
	if debug {
		for i, bysize := range m.BySize {
			fmt.Fprintf(&buf, "|Size %2d: %d|%d - %d &rarr; %d\n",
				i, bysize.Size, bysize.Mallocs, bysize.Frees, bysize.Mallocs-bysize.Frees)
		}
	}
	return buf.Bytes()
}

Changes to box/compbox/parser.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package compbox

import (
	"bytes"
	"fmt"
	"sort"
	"strings"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

func genParserM(zid id.Zid) *meta.Meta {








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package compbox

import (
	"bytes"
	"fmt"
	"sort"
	"strings"

	"t73f.de/r/zsc/api"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

func genParserM(zid id.Zid) *meta.Meta {

Changes to box/compbox/version.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package compbox

import (
	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

func getVersionMeta(zid id.Zid, title string) *meta.Meta {
	m := meta.New(zid)








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>





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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package compbox

import (
	"t73f.de/r/zsc/api"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

func getVersionMeta(zid id.Zid, title string) *meta.Meta {
	m := meta.New(zid)

Changes to box/constbox/base.css.















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*,*::before,*::after {
    box-sizing: border-box;
  }
  html {
    font-size: 1rem;
    font-family: serif;
    scroll-behavior: smooth;
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/*-----------------------------------------------------------------------------
 * Copyright (c) 2020-present Detlef Stern
 *
 * This file is part of Zettelstore.
 *
 * Zettelstore is licensed under the latest version of the EUPL (European Union
 * Public License). Please see file LICENSE.txt for your rights and obligations
 * under this license.
 *
 * SPDX-License-Identifier: EUPL-1.2
 * SPDX-FileCopyrightText: 2020-present Detlef Stern
 *-----------------------------------------------------------------------------
 */

*,*::before,*::after {
    box-sizing: border-box;
  }
  html {
    font-size: 1rem;
    font-family: serif;
    scroll-behavior: smooth;
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  h1 { font-size:1.5rem;  margin:.65rem 0 }
  h2 { font-size:1.25rem; margin:.70rem 0 }
  h3 { font-size:1.15rem; margin:.75rem 0 }
  h4 { font-size:1.05rem; margin:.8rem 0; font-weight: bold }
  h5 { font-size:1.05rem; margin:.8rem 0 }
  h6 { font-size:1.05rem; margin:.8rem 0; font-weight: lighter }
  p { margin: .5rem 0 0 0 }
  p.zs-tag-zettel { margin-top: .5rem; margin-left: 0.5rem }
  li,figure,figcaption,dl { margin: 0 }
  dt { margin: .5rem 0 0 0 }
  dt+dd { margin-top: 0 }
  dd { margin: .5rem 0 0 2rem }
  dd > p:first-child { margin: 0 0 0 0 }
  blockquote {
    border-left: 0.5rem solid lightgray;







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  h1 { font-size:1.5rem;  margin:.65rem 0 }
  h2 { font-size:1.25rem; margin:.70rem 0 }
  h3 { font-size:1.15rem; margin:.75rem 0 }
  h4 { font-size:1.05rem; margin:.8rem 0; font-weight: bold }
  h5 { font-size:1.05rem; margin:.8rem 0 }
  h6 { font-size:1.05rem; margin:.8rem 0; font-weight: lighter }
  p { margin: .5rem 0 0 0 }
  p.zs-meta-zettel { margin-top: .5rem; margin-left: 0.5rem }
  li,figure,figcaption,dl { margin: 0 }
  dt { margin: .5rem 0 0 0 }
  dt+dd { margin-top: 0 }
  dd { margin: .5rem 0 0 2rem }
  dd > p:first-child { margin: 0 0 0 0 }
  blockquote {
    border-left: 0.5rem solid lightgray;

Changes to box/constbox/base.sxn.














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`(@@@@
(html ,@(if lang `((@ (lang ,lang))))
(head
  (meta (@ (charset "utf-8")))
  (meta (@ (name "viewport") (content "width=device-width, initial-scale=1.0")))
  (meta (@ (name "generator") (content "Zettelstore")))
  (meta (@ (name "format-detection") (content "telephone=no")))
  ,@META-HEADER
  (link (@ (rel "stylesheet") (href ,css-base-url)))
  (link (@ (rel "stylesheet") (href ,css-user-url)))
  ,@(ROLE-DEFAULT-meta (current-environment))
  (title ,title))
(body
  (nav (@ (class "zs-menu"))
    (a (@ (href ,home-url)) "Home")
    ,@(if with-auth
      `((div (@ (class "zs-dropdown"))
        (button "User")
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;;;----------------------------------------------------------------------------
;;; Copyright (c) 2023-present Detlef Stern
;;;
;;; This file is part of Zettelstore.
;;;
;;; Zettelstore is licensed under the latest version of the EUPL (European
;;; Union Public License). Please see file LICENSE.txt for your rights and
;;; obligations under this license.
;;;
;;; SPDX-License-Identifier: EUPL-1.2
;;; SPDX-FileCopyrightText: 2023-present Detlef Stern
;;;----------------------------------------------------------------------------

`(@@@@
(html ,@(if lang `((@ (lang ,lang))))
(head
  (meta (@ (charset "utf-8")))
  (meta (@ (name "viewport") (content "width=device-width, initial-scale=1.0")))
  (meta (@ (name "generator") (content "Zettelstore")))
  (meta (@ (name "format-detection") (content "telephone=no")))
  ,@META-HEADER
  (link (@ (rel "stylesheet") (href ,css-base-url)))
  (link (@ (rel "stylesheet") (href ,css-user-url)))
  ,@(ROLE-DEFAULT-meta (current-binding))
  (title ,title))
(body
  (nav (@ (class "zs-menu"))
    (a (@ (href ,home-url)) "Home")
    ,@(if with-auth
      `((div (@ (class "zs-dropdown"))
        (button "User")
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    ,@(if new-zettel-links
      `((div (@ (class "zs-dropdown"))
        (button "New")
        (nav (@ (class "zs-dropdown-content"))
          ,@(map wui-link new-zettel-links)
       )))
    )
    (form (@ (action ,search-url))


      (input (@ (type "text") (placeholder "Search..") (name ,query-key-query) (dir "auto"))))
  )
  (main (@ (class "content")) ,DETAIL)
  ,@(if FOOTER `((footer (hr) ,@FOOTER)))
  ,@(if debug-mode '((div (b "WARNING: Debug mode is enabled. DO NOT USE IN PRODUCTION!"))))
)))







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    ,@(if new-zettel-links
      `((div (@ (class "zs-dropdown"))
        (button "New")
        (nav (@ (class "zs-dropdown-content"))
          ,@(map wui-link new-zettel-links)
       )))
    )
    (search (form (@ (action ,search-url))
      (input (@ (type "search") (inputmode "search") (name ,query-key-query)
                (title "General search field, with same behaviour as search field in search result list")
                (placeholder "Search..") (dir "auto")))))
  )
  (main (@ (class "content")) ,DETAIL)
  ,@(if FOOTER `((footer (hr) ,@FOOTER)))
  ,@(if debug-mode '((div (b "WARNING: Debug mode is enabled. DO NOT USE IN PRODUCTION!"))))
)))

Changes to box/constbox/constbox.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package constbox puts zettel inside the executable.
package constbox

import (
	"context"
	_ "embed" // Allow to embed file content
	"net/url"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/box"
	"zettelstore.de/z/box/manager"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/logger"
	"zettelstore.de/z/query"
	"zettelstore.de/z/zettel"
	"zettelstore.de/z/zettel/id"








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

// Package constbox puts zettel inside the executable.
package constbox

import (
	"context"
	_ "embed" // Allow to embed file content
	"net/url"

	"t73f.de/r/zsc/api"
	"zettelstore.de/z/box"
	"zettelstore.de/z/box/manager"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/logger"
	"zettelstore.de/z/query"
	"zettelstore.de/z/zettel"
	"zettelstore.de/z/zettel/id"
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	id.MustParse(api.ZidDependencies): {
		constHeader{
			api.KeyTitle:      "Zettelstore Dependencies",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxZmk,
			api.KeyLang:       api.ValueLangEN,
			api.KeyReadOnly:   api.ValueTrue,
			api.KeyVisibility: api.ValueVisibilityLogin,
			api.KeyCreated:    "20210504135842",
			api.KeyModified:   "20230601163100",
		},
		zettel.NewContent(contentDependencies)},
	id.BaseTemplateZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore Base HTML Template",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20230510155100",
			api.KeyModified:   "20230827212200",
			api.KeyVisibility: api.ValueVisibilityExpert,
		},
		zettel.NewContent(contentBaseSxn)},
	id.LoginTemplateZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore Login Form HTML Template",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20200804111624",
			api.KeyModified:   "20230527144100",
			api.KeyVisibility: api.ValueVisibilityExpert,
		},
		zettel.NewContent(contentLoginSxn)},
	id.ZettelTemplateZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore Zettel HTML Template",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20230510155300",
			api.KeyModified:   "20230907203300",
			api.KeyVisibility: api.ValueVisibilityExpert,
		},
		zettel.NewContent(contentZettelSxn)},
	id.InfoTemplateZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore Info HTML Template",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20200804111624",
			api.KeyModified:   "20231023152000",
			api.KeyVisibility: api.ValueVisibilityExpert,
		},
		zettel.NewContent(contentInfoSxn)},
	id.FormTemplateZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore Form HTML Template",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20200804111624",
			api.KeyModified:   "20230621132600",
			api.KeyVisibility: api.ValueVisibilityExpert,
		},
		zettel.NewContent(contentFormSxn)},
	id.RenameTemplateZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore Rename Form HTML Template",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20200804111624",
			api.KeyModified:   "20230707190246",
			api.KeyVisibility: api.ValueVisibilityExpert,
		},
		zettel.NewContent(contentRenameSxn)},
	id.DeleteTemplateZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore Delete HTML Template",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20200804111624",
			api.KeyModified:   "20230621133100",
			api.KeyVisibility: api.ValueVisibilityExpert,
		},
		zettel.NewContent(contentDeleteSxn)},
	id.ListTemplateZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore List Zettel HTML Template",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20230704122100",
			api.KeyModified:   "20231002120600",
			api.KeyVisibility: api.ValueVisibilityExpert,
		},
		zettel.NewContent(contentListZettelSxn)},
	id.ErrorTemplateZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore Error HTML Template",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20210305133215",
			api.KeyModified:   "20230527224800",
			api.KeyVisibility: api.ValueVisibilityExpert,
		},
		zettel.NewContent(contentErrorSxn)},
	id.StartSxnZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore Sxn Start Code",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20230824160700",

			api.KeyVisibility: api.ValueVisibilityExpert,
			api.KeyPrecursor:  string(api.ZidSxnBase),
		},
		zettel.NewContent(contentStartCodeSxn)},
	id.BaseSxnZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore Sxn Base Code",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20230619132800",
			api.KeyModified:   "20231012154500",
			api.KeyReadOnly:   api.ValueTrue,
			api.KeyVisibility: api.ValueVisibilityExpert,
			api.KeyPrecursor:  string(api.ZidSxnPrelude),
		},
		zettel.NewContent(contentBaseCodeSxn)},
	id.PreludeSxnZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore Sxn Prelude",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20231006181700",
			api.KeyModified:   "20231019140400",
			api.KeyReadOnly:   api.ValueTrue,
			api.KeyVisibility: api.ValueVisibilityExpert,
		},
		zettel.NewContent(contentPreludeSxn)},
	id.MustParse(api.ZidBaseCSS): {
		constHeader{
			api.KeyTitle:      "Zettelstore Base CSS",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxCSS,
			api.KeyCreated:    "20200804111624",

			api.KeyVisibility: api.ValueVisibilityPublic,
		},
		zettel.NewContent(contentBaseCSS)},
	id.MustParse(api.ZidUserCSS): {
		constHeader{
			api.KeyTitle:      "Zettelstore User CSS",
			api.KeyRole:       api.ValueRoleConfiguration,







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	id.MustParse(api.ZidDependencies): {
		constHeader{
			api.KeyTitle:      "Zettelstore Dependencies",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxZmk,
			api.KeyLang:       api.ValueLangEN,
			api.KeyReadOnly:   api.ValueTrue,
			api.KeyVisibility: api.ValueVisibilityPublic,
			api.KeyCreated:    "20210504135842",
			api.KeyModified:   "20240418095500",
		},
		zettel.NewContent(contentDependencies)},
	id.BaseTemplateZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore Base HTML Template",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20230510155100",
			api.KeyModified:   "20240219145300",
			api.KeyVisibility: api.ValueVisibilityExpert,
		},
		zettel.NewContent(contentBaseSxn)},
	id.LoginTemplateZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore Login Form HTML Template",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20200804111624",
			api.KeyModified:   "20240219145200",
			api.KeyVisibility: api.ValueVisibilityExpert,
		},
		zettel.NewContent(contentLoginSxn)},
	id.ZettelTemplateZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore Zettel HTML Template",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20230510155300",
			api.KeyModified:   "20240219145100",
			api.KeyVisibility: api.ValueVisibilityExpert,
		},
		zettel.NewContent(contentZettelSxn)},
	id.InfoTemplateZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore Info HTML Template",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20200804111624",
			api.KeyModified:   "20240219145200",
			api.KeyVisibility: api.ValueVisibilityExpert,
		},
		zettel.NewContent(contentInfoSxn)},
	id.FormTemplateZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore Form HTML Template",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20200804111624",
			api.KeyModified:   "20240219145200",
			api.KeyVisibility: api.ValueVisibilityExpert,
		},
		zettel.NewContent(contentFormSxn)},
	id.RenameTemplateZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore Rename Form HTML Template",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20200804111624",
			api.KeyModified:   "20240219145200",
			api.KeyVisibility: api.ValueVisibilityExpert,
		},
		zettel.NewContent(contentRenameSxn)},
	id.DeleteTemplateZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore Delete HTML Template",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20200804111624",
			api.KeyModified:   "20240219145200",
			api.KeyVisibility: api.ValueVisibilityExpert,
		},
		zettel.NewContent(contentDeleteSxn)},
	id.ListTemplateZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore List Zettel HTML Template",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20230704122100",
			api.KeyModified:   "20240219145200",
			api.KeyVisibility: api.ValueVisibilityExpert,
		},
		zettel.NewContent(contentListZettelSxn)},
	id.ErrorTemplateZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore Error HTML Template",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20210305133215",
			api.KeyModified:   "20240219145200",
			api.KeyVisibility: api.ValueVisibilityExpert,
		},
		zettel.NewContent(contentErrorSxn)},
	id.StartSxnZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore Sxn Start Code",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20230824160700",
			api.KeyModified:   "20240219145200",
			api.KeyVisibility: api.ValueVisibilityExpert,
			api.KeyPrecursor:  string(api.ZidSxnBase),
		},
		zettel.NewContent(contentStartCodeSxn)},
	id.BaseSxnZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore Sxn Base Code",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20230619132800",
			api.KeyModified:   "20240219144600",
			api.KeyReadOnly:   api.ValueTrue,
			api.KeyVisibility: api.ValueVisibilityExpert,
			api.KeyPrecursor:  string(api.ZidSxnPrelude),
		},
		zettel.NewContent(contentBaseCodeSxn)},
	id.PreludeSxnZid: {
		constHeader{
			api.KeyTitle:      "Zettelstore Sxn Prelude",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxSxn,
			api.KeyCreated:    "20231006181700",
			api.KeyModified:   "20240222121200",
			api.KeyReadOnly:   api.ValueTrue,
			api.KeyVisibility: api.ValueVisibilityExpert,
		},
		zettel.NewContent(contentPreludeSxn)},
	id.MustParse(api.ZidBaseCSS): {
		constHeader{
			api.KeyTitle:      "Zettelstore Base CSS",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxCSS,
			api.KeyCreated:    "20200804111624",
			api.KeyModified:   "20231129112800",
			api.KeyVisibility: api.ValueVisibilityPublic,
		},
		zettel.NewContent(contentBaseCSS)},
	id.MustParse(api.ZidUserCSS): {
		constHeader{
			api.KeyTitle:      "Zettelstore User CSS",
			api.KeyRole:       api.ValueRoleConfiguration,
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	id.TOCNewTemplateZid: {
		constHeader{
			api.KeyTitle:      "New Menu",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxZmk,
			api.KeyLang:       api.ValueLangEN,
			api.KeyCreated:    "20210217161829",

			api.KeyVisibility: api.ValueVisibilityCreator,
		},
		zettel.NewContent(contentNewTOCZettel)},
	id.MustParse(api.ZidTemplateNewZettel): {
		constHeader{
			api.KeyTitle:                 "New Zettel",
			api.KeyRole:                  api.ValueRoleConfiguration,
			api.KeySyntax:                meta.SyntaxZmk,
			api.KeyCreated:               "20201028185209",
			api.KeyModified:              "20230929132900",
			meta.NewPrefix + api.KeyRole: api.ValueRoleZettel,
			api.KeyVisibility:            api.ValueVisibilityCreator,
		},











		zettel.NewContent(nil)},
	id.MustParse(api.ZidTemplateNewTag): {
		constHeader{
			api.KeyTitle:                  "New Tag",
			api.KeyRole:                   api.ValueRoleConfiguration,
			api.KeySyntax:                 meta.SyntaxZmk,
			api.KeyCreated:                "20230929132400",







>













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	id.TOCNewTemplateZid: {
		constHeader{
			api.KeyTitle:      "New Menu",
			api.KeyRole:       api.ValueRoleConfiguration,
			api.KeySyntax:     meta.SyntaxZmk,
			api.KeyLang:       api.ValueLangEN,
			api.KeyCreated:    "20210217161829",
			api.KeyModified:   "20231129111800",
			api.KeyVisibility: api.ValueVisibilityCreator,
		},
		zettel.NewContent(contentNewTOCZettel)},
	id.MustParse(api.ZidTemplateNewZettel): {
		constHeader{
			api.KeyTitle:                 "New Zettel",
			api.KeyRole:                  api.ValueRoleConfiguration,
			api.KeySyntax:                meta.SyntaxZmk,
			api.KeyCreated:               "20201028185209",
			api.KeyModified:              "20230929132900",
			meta.NewPrefix + api.KeyRole: api.ValueRoleZettel,
			api.KeyVisibility:            api.ValueVisibilityCreator,
		},
		zettel.NewContent(nil)},
	id.MustParse(api.ZidTemplateNewRole): {
		constHeader{
			api.KeyTitle:                  "New Role",
			api.KeyRole:                   api.ValueRoleConfiguration,
			api.KeySyntax:                 meta.SyntaxZmk,
			api.KeyCreated:                "20231129110800",
			meta.NewPrefix + api.KeyRole:  api.ValueRoleRole,
			meta.NewPrefix + api.KeyTitle: "",
			api.KeyVisibility:             api.ValueVisibilityCreator,
		},
		zettel.NewContent(nil)},
	id.MustParse(api.ZidTemplateNewTag): {
		constHeader{
			api.KeyTitle:                  "New Tag",
			api.KeyRole:                   api.ValueRoleConfiguration,
			api.KeySyntax:                 meta.SyntaxZmk,
			api.KeyCreated:                "20230929132400",
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			api.KeyCreated:                     "20201028185209",
			meta.NewPrefix + api.KeyCredential: "",
			meta.NewPrefix + api.KeyUserID:     "",
			meta.NewPrefix + api.KeyUserRole:   api.ValueUserRoleReader,
			api.KeyVisibility:                  api.ValueVisibilityOwner,
		},
		zettel.NewContent(nil)},








































	id.DefaultHomeZid: {
		constHeader{
			api.KeyTitle:   "Home",
			api.KeyRole:    api.ValueRoleZettel,
			api.KeySyntax:  meta.SyntaxZmk,
			api.KeyLang:    api.ValueLangEN,
			api.KeyCreated: "20210210190757",







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			api.KeyCreated:                     "20201028185209",
			meta.NewPrefix + api.KeyCredential: "",
			meta.NewPrefix + api.KeyUserID:     "",
			meta.NewPrefix + api.KeyUserRole:   api.ValueUserRoleReader,
			api.KeyVisibility:                  api.ValueVisibilityOwner,
		},
		zettel.NewContent(nil)},
	id.MustParse(api.ZidRoleZettelZettel): {
		constHeader{
			api.KeyTitle:      api.ValueRoleZettel,
			api.KeyRole:       api.ValueRoleRole,
			api.KeySyntax:     meta.SyntaxZmk,
			api.KeyCreated:    "20231129161400",
			api.KeyLang:       api.ValueLangEN,
			api.KeyVisibility: api.ValueVisibilityLogin,
		},
		zettel.NewContent(contentRoleZettel)},
	id.MustParse(api.ZidRoleConfigurationZettel): {
		constHeader{
			api.KeyTitle:      api.ValueRoleConfiguration,
			api.KeyRole:       api.ValueRoleRole,
			api.KeySyntax:     meta.SyntaxZmk,
			api.KeyCreated:    "20231129162800",
			api.KeyLang:       api.ValueLangEN,
			api.KeyVisibility: api.ValueVisibilityLogin,
		},
		zettel.NewContent(contentRoleConfiguration)},
	id.MustParse(api.ZidRoleRoleZettel): {
		constHeader{
			api.KeyTitle:      api.ValueRoleRole,
			api.KeyRole:       api.ValueRoleRole,
			api.KeySyntax:     meta.SyntaxZmk,
			api.KeyCreated:    "20231129162900",
			api.KeyLang:       api.ValueLangEN,
			api.KeyVisibility: api.ValueVisibilityLogin,
		},
		zettel.NewContent(contentRoleRole)},
	id.MustParse(api.ZidRoleTagZettel): {
		constHeader{
			api.KeyTitle:      api.ValueRoleTag,
			api.KeyRole:       api.ValueRoleRole,
			api.KeySyntax:     meta.SyntaxZmk,
			api.KeyCreated:    "20231129162000",
			api.KeyLang:       api.ValueLangEN,
			api.KeyVisibility: api.ValueVisibilityLogin,
		},
		zettel.NewContent(contentRoleTag)},
	id.DefaultHomeZid: {
		constHeader{
			api.KeyTitle:   "Home",
			api.KeyRole:    api.ValueRoleZettel,
			api.KeySyntax:  meta.SyntaxZmk,
			api.KeyLang:    api.ValueLangEN,
			api.KeyCreated: "20210210190757",
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var contentBaseCSS []byte

//go:embed emoji_spin.gif
var contentEmoji []byte

//go:embed newtoc.zettel
var contentNewTOCZettel []byte













//go:embed home.zettel
var contentHomeZettel []byte







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var contentBaseCSS []byte

//go:embed emoji_spin.gif
var contentEmoji []byte

//go:embed newtoc.zettel
var contentNewTOCZettel []byte

//go:embed rolezettel.zettel
var contentRoleZettel []byte

//go:embed roleconfiguration.zettel
var contentRoleConfiguration []byte

//go:embed rolerole.zettel
var contentRoleRole []byte

//go:embed roletag.zettel
var contentRoleTag []byte

//go:embed home.zettel
var contentHomeZettel []byte

Changes to box/constbox/delete.sxn.














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`(article
  (header (h1 "Delete Zettel " ,zid))
  (p "Do you really want to delete this zettel?")
  ,@(if shadowed-box
    `((div (@ (class "zs-info"))
      (h2 "Information")
      (p "If you delete this zettel, the previously shadowed zettel from overlayed box " ,shadowed-box " becomes available.")
>
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;;;----------------------------------------------------------------------------
;;; Copyright (c) 2023-present Detlef Stern
;;;
;;; This file is part of Zettelstore.
;;;
;;; Zettelstore is licensed under the latest version of the EUPL (European
;;; Union Public License). Please see file LICENSE.txt for your rights and
;;; obligations under this license.
;;;
;;; SPDX-License-Identifier: EUPL-1.2
;;; SPDX-FileCopyrightText: 2023-present Detlef Stern
;;;----------------------------------------------------------------------------

`(article
  (header (h1 "Delete Zettel " ,zid))
  (p "Do you really want to delete this zettel?")
  ,@(if shadowed-box
    `((div (@ (class "zs-info"))
      (h2 "Information")
      (p "If you delete this zettel, the previously shadowed zettel from overlayed box " ,shadowed-box " becomes available.")

Changes to box/constbox/dependencies.zettel.

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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
```

=== sx, zettelstore-client
These are companion projects, written by the current main developer of Zettelstore.
They are published under the same license, [[EUPL v1.2, or later|00000000000004]].

; URL & Source sx
: [[https://zettelstore.de/sx]]


; URL & Source zettelstore-client


: [[https://zettelstore.de/client/]]
; License:
: European Union Public License, version 1.2 (EUPL v1.2), or later.







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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
```

=== Sx, SxWebs, Webs, Zettelstore-Client
These are companion projects, written by the main developer of Zettelstore.
They are published under the same license, [[EUPL v1.2, or later|00000000000004]].

; URL & Source Sx
: [[https://t73f.de/r/sx]]
; URL & Source SxWebs
: [[https://t73f.de/r/sxwebs]]
; URL & Source Webs
: [[https://t73f.de/r/webs]]
; URL & Source Zettelstore-Client
: [[https://t73f.de/r/zsc]]
; License:
: European Union Public License, version 1.2 (EUPL v1.2), or later.

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`(article
  (header (h1 ,heading))
  ,message
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;;;----------------------------------------------------------------------------
;;; Copyright (c) 2023-present Detlef Stern
;;;
;;; This file is part of Zettelstore.
;;;
;;; Zettelstore is licensed under the latest version of the EUPL (European
;;; Union Public License). Please see file LICENSE.txt for your rights and
;;; obligations under this license.
;;;
;;; SPDX-License-Identifier: EUPL-1.2
;;; SPDX-FileCopyrightText: 2023-present Detlef Stern
;;;----------------------------------------------------------------------------

`(article
  (header (h1 ,heading))
  ,message
)

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`(article
  (header (h1 ,heading))
  (form (@ (action ,form-action-url) (method "POST") (enctype "multipart/form-data"))
  (div
    (label (@ (for "zs-title")) "Title " (a (@ (title "Main heading of this zettel.")) (@H "&#9432;")))
    (input (@ (class "zs-input") (type "text") (id "zs-title") (name "title") (placeholder "Title..") (value ,meta-title) (dir "auto") (autofocus))))


  (div
    (label (@ (for "zs-role")) "Role " (a (@ (title "One word, without spaces, to set the main role of this zettel.")) (@H "&#9432;")))


    (input (@ (class "zs-input") (type "text") (id "zs-role") (name "role") (placeholder "role..") (value ,meta-role) (dir "auto")
      ,@(if role-data '((list "zs-role-data")))
    ))
    ,@(wui-datalist "zs-role-data" role-data)
  )
  (div
    (label (@ (for "zs-tags")) "Tags " (a (@ (title "Tags must begin with an '#' sign. They are separated by spaces.")) (@H "&#9432;")))
    (input (@ (class "zs-input") (type "text") (id "zs-tags") (name "tags") (placeholder "#tag") (value ,meta-tags) (dir "auto"))))


  (div
    (label (@ (for "zs-meta")) "Metadata " (a (@ (title "Other metadata for this zettel. Each line contains a key/value pair, separated by a colon ':'.")) (@H "&#9432;")))
    (textarea (@ (class "zs-input") (id "zs-meta") (name "meta") (rows "4") (placeholder "metakey: metavalue") (dir "auto")) ,meta))


  (div
    (label (@ (for "zs-syntax")) "Syntax " (a (@ (title "Syntax of zettel content below, one word. Typically 'zmk' (for zettelmarkup).")) (@H "&#9432;")))


    (input (@ (class "zs-input") (type "text") (id "zs-syntax") (name "syntax") (placeholder "syntax..") (value ,meta-syntax) (dir "auto")
      ,@(if syntax-data '((list "zs-syntax-data")))
    ))
    ,@(wui-datalist "zs-syntax-data" syntax-data)
  )
  ,@(if (bound? 'content)
    `((div
      (label (@ (for "zs-content")) "Content " (a (@ (title "Content for this zettel, according to above syntax.")) (@H "&#9432;")))
      (textarea (@ (class "zs-input zs-content") (id "zs-content") (name "content") (rows "20") (placeholder "Zettel content..") (dir "auto")) ,content)


    ))
  )
  (div
    (input (@ (class "zs-primary") (type "submit") (value "Submit")))
    (input (@ (class "zs-secondary") (type "submit") (value "Save") (formaction "?save")))
    (input (@ (class "zs-upload") (type "file") (id "zs-file") (name "file")))
  ))
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;;;----------------------------------------------------------------------------
;;; Copyright (c) 2023-present Detlef Stern
;;;
;;; This file is part of Zettelstore.
;;;
;;; Zettelstore is licensed under the latest version of the EUPL (European
;;; Union Public License). Please see file LICENSE.txt for your rights and
;;; obligations under this license.
;;;
;;; SPDX-License-Identifier: EUPL-1.2
;;; SPDX-FileCopyrightText: 2023-present Detlef Stern
;;;----------------------------------------------------------------------------

`(article
  (header (h1 ,heading))
  (form (@ (action ,form-action-url) (method "POST") (enctype "multipart/form-data"))
  (div
    (label (@ (for "zs-title")) "Title " (a (@ (title "Main heading of this zettel.")) (@H "&#9432;")))
    (input (@ (class "zs-input") (type "text") (id "zs-title") (name "title")
              (title "Title of this zettel")
              (placeholder "Title..") (value ,meta-title) (dir "auto") (autofocus))))
  (div
    (label (@ (for "zs-role")) "Role " (a (@ (title "One word, without spaces, to set the main role of this zettel.")) (@H "&#9432;")))
    (input (@ (class "zs-input") (type "text") (pattern "\\w*") (id "zs-role") (name "role")
              (title "One word, letters and digits, but no spaces, to set the main role of the zettel.")
              (placeholder "role..") (value ,meta-role) (dir "auto")
      ,@(if role-data '((list "zs-role-data")))
    ))
    ,@(wui-datalist "zs-role-data" role-data)
  )
  (div
    (label (@ (for "zs-tags")) "Tags " (a (@ (title "Tags must begin with an '#' sign. They are separated by spaces.")) (@H "&#9432;")))
    (input (@ (class "zs-input") (type "text") (id "zs-tags") (name "tags")
              (title "Tags/keywords to categorize the zettel. Each tags is a word that begins with a '#' character; they are separated by spaces")
              (placeholder "#tag") (value ,meta-tags) (dir "auto"))))
  (div
    (label (@ (for "zs-meta")) "Metadata " (a (@ (title "Other metadata for this zettel. Each line contains a key/value pair, separated by a colon ':'.")) (@H "&#9432;")))
    (textarea (@ (class "zs-input") (id "zs-meta") (name "meta") (rows "4")
                 (title "Additional metadata about the zettel")
                 (placeholder "metakey: metavalue") (dir "auto")) ,meta))
  (div
    (label (@ (for "zs-syntax")) "Syntax " (a (@ (title "Syntax of zettel content below, one word. Typically 'zmk' (for zettelmarkup).")) (@H "&#9432;")))
    (input (@ (class "zs-input") (type "text") (pattern "\\w*") (id "zs-syntax") (name "syntax")
              (title "Syntax/format of zettel content below, one word, letters and digits, no spaces.")
              (placeholder "syntax..") (value ,meta-syntax) (dir "auto")
      ,@(if syntax-data '((list "zs-syntax-data")))
    ))
    ,@(wui-datalist "zs-syntax-data" syntax-data)
  )
  ,@(if (bound? 'content)
    `((div
      (label (@ (for "zs-content")) "Content " (a (@ (title "Content for this zettel, according to above syntax.")) (@H "&#9432;")))
      (textarea (@ (class "zs-input zs-content") (id "zs-content") (name "content") (rows "20")
                   (title "Zettel content, according to the given syntax")
                   (placeholder "Zettel content..") (dir "auto")) ,content)
    ))
  )
  (div
    (input (@ (class "zs-primary") (type "submit") (value "Submit")))
    (input (@ (class "zs-secondary") (type "submit") (value "Save") (formaction "?save")))
    (input (@ (class "zs-upload") (type "file") (id "zs-file") (name "file")))
  ))

Changes to box/constbox/info.sxn.














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`(article
  (header (h1 "Information for Zettel " ,zid)
    (p
      (a (@ (href ,web-url)) "Web")
      (@H " &#183; ") (a (@ (href ,context-url)) "Context")

      ,@(if (bound? 'edit-url) `((@H " &#183; ") (a (@ (href ,edit-url)) "Edit")))
      ,@(ROLE-DEFAULT-actions (current-environment))
      ,@(if (bound? 'reindex-url) `((@H " &#183; ") (a (@ (href ,reindex-url)) "Reindex")))
      ,@(if (bound? 'rename-url) `((@H " &#183; ") (a (@ (href ,rename-url)) "Rename")))
      ,@(if (bound? 'delete-url) `((@H " &#183; ") (a (@ (href ,delete-url)) "Delete")))
    )
  )
  (h2 "Interpreted Metadata")
  (table ,@(map wui-table-row metadata))
  (h2 "References")
  ,@(if local-links `((h3 "Local")    (ul ,@(map wui-valid-link local-links))))
  ,@(if query-links `((h3 "Queries")  (ul ,@(map wui-item-link query-links))))
  ,@(if ext-links   `((h3 "External") (ul ,@(map wui-item-popup-link ext-links))))
  (h3 "Unlinked")
  ,@unlinked-content
  (form
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;;;----------------------------------------------------------------------------
;;; Copyright (c) 2023-present Detlef Stern
;;;
;;; This file is part of Zettelstore.
;;;
;;; Zettelstore is licensed under the latest version of the EUPL (European
;;; Union Public License). Please see file LICENSE.txt for your rights and
;;; obligations under this license.
;;;
;;; SPDX-License-Identifier: EUPL-1.2
;;; SPDX-FileCopyrightText: 2023-present Detlef Stern
;;;----------------------------------------------------------------------------

`(article
  (header (h1 "Information for Zettel " ,zid)
    (p
      (a (@ (href ,web-url)) "Web")
      (@H " &#183; ") (a (@ (href ,context-url)) "Context")
      (@H " / ") (a (@ (href ,context-full-url)) "Full")
      ,@(if (bound? 'edit-url) `((@H " &#183; ") (a (@ (href ,edit-url)) "Edit")))
      ,@(ROLE-DEFAULT-actions (current-binding))
      ,@(if (bound? 'reindex-url) `((@H " &#183; ") (a (@ (href ,reindex-url)) "Reindex")))
      ,@(if (bound? 'rename-url) `((@H " &#183; ") (a (@ (href ,rename-url)) "Rename")))
      ,@(if (bound? 'delete-url) `((@H " &#183; ") (a (@ (href ,delete-url)) "Delete")))
    )
  )
  (h2 "Interpreted Metadata")
  (table ,@(map wui-info-meta-table-row metadata))
  (h2 "References")
  ,@(if local-links `((h3 "Local")    (ul ,@(map wui-valid-link local-links))))
  ,@(if query-links `((h3 "Queries")  (ul ,@(map wui-item-link query-links))))
  ,@(if ext-links   `((h3 "External") (ul ,@(map wui-item-popup-link ext-links))))
  (h3 "Unlinked")
  ,@unlinked-content
  (form

Changes to box/constbox/listzettel.sxn.














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`(article
  (header (h1 ,heading))
  (form (@ (action ,search-url))


    (input (@ (class "zs-input") (type "text") (placeholder "Search..") (name ,query-key-query) (value ,query-value) (dir "auto"))))
  ,@(if (bound? 'tag-zettel)
     `((p (@ (class "zs-tag-zettel")) "Tag zettel: " ,@tag-zettel))
    )
  ,@(if (bound? 'create-tag-zettel)
     `((p (@ (class "zs-tag-zettel")) "Create tag zettel: " ,@create-tag-zettel))






    )
  ,@content
  ,@endnotes
  (form (@ (action ,(if (bound? 'create-url) create-url)))

      "Other encodings: "

      (a (@ (href ,data-url)) "data")
      ", "
      (a (@ (href ,plain-url)) "plain")


      ,@(if (bound? 'create-url)
        `((input (@ (type "hidden") (name ,query-key-query) (value ,query-value)))
          (input (@ (type "hidden") (name ,query-key-seed) (value ,seed)))
          (input (@ (class "zs-primary") (type "submit") (value "Save As Zettel")))
        )
      )
  )
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;;;----------------------------------------------------------------------------
;;; Copyright (c) 2023-present Detlef Stern
;;;
;;; This file is part of Zettelstore.
;;;
;;; Zettelstore is licensed under the latest version of the EUPL (European
;;; Union Public License). Please see file LICENSE.txt for your rights and
;;; obligations under this license.
;;;
;;; SPDX-License-Identifier: EUPL-1.2
;;; SPDX-FileCopyrightText: 2023-present Detlef Stern
;;;----------------------------------------------------------------------------

`(article
  (header (h1 ,heading))
  (search (form (@ (action ,search-url))
    (input (@ (class "zs-input") (type "search") (inputmode "search") (name ,query-key-query)
              (title "Contains the search that leads to the list below. You're allowed to modify it")
              (placeholder "Search..") (value ,query-value) (dir "auto")))))
  ,@(if (bound? 'tag-zettel)
     `((p (@ (class "zs-meta-zettel")) "Tag zettel: " ,@tag-zettel))
    )
  ,@(if (bound? 'create-tag-zettel)
     `((p (@ (class "zs-meta-zettel")) "Create tag zettel: " ,@create-tag-zettel))
    )
  ,@(if (bound? 'role-zettel)
     `((p (@ (class "zs-meta-zettel")) "Role zettel: " ,@role-zettel))
    )
  ,@(if (bound? 'create-role-zettel)
     `((p (@ (class "zs-meta-zettel")) "Create role zettel: " ,@create-role-zettel))
    )
  ,@content
  ,@endnotes
  (form (@ (action ,(if (bound? 'create-url) create-url)))
      ,(if (bound? 'data-url)
          `(@L "Other encodings"
               ,(if (> num-entries 3) `(@L " of these " ,num-entries " entries: ") ": ")
               (a (@ (href ,data-url)) "data")
               ", "
               (a (@ (href ,plain-url)) "plain")
           )
      )
      ,@(if (bound? 'create-url)
        `((input (@ (type "hidden") (name ,query-key-query) (value ,query-value)))
          (input (@ (type "hidden") (name ,query-key-seed) (value ,seed)))
          (input (@ (class "zs-primary") (type "submit") (value "Save As Zettel")))
        )
      )
  )

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`(article
  (header (h1 "Login"))
  ,@(if retry '((div (@ (class "zs-indication zs-error")) "Wrong user name / password. Try again.")))
  (form (@ (method "POST") (action ""))
    (div
      (label (@ (for "username")) "User name:")
      (input (@ (class "zs-input") (type "text") (id "username") (name "username") (placeholder "Your user name..") (autofocus))))
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;;;----------------------------------------------------------------------------
;;; Copyright (c) 2023-present Detlef Stern
;;;
;;; This file is part of Zettelstore.
;;;
;;; Zettelstore is licensed under the latest version of the EUPL (European
;;; Union Public License). Please see file LICENSE.txt for your rights and
;;; obligations under this license.
;;;
;;; SPDX-License-Identifier: EUPL-1.2
;;; SPDX-FileCopyrightText: 2023-present Detlef Stern
;;;----------------------------------------------------------------------------

`(article
  (header (h1 "Login"))
  ,@(if retry '((div (@ (class "zs-indication zs-error")) "Wrong user name / password. Try again.")))
  (form (@ (method "POST") (action ""))
    (div
      (label (@ (for "username")) "User name:")
      (input (@ (class "zs-input") (type "text") (id "username") (name "username") (placeholder "Your user name..") (autofocus))))

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This zettel lists all zettel that should act as a template for new zettel.
These zettel will be included in the ""New"" menu of the WebUI.
* [[New Zettel|00000000090001]]

* [[New Template|00000000090003]]
* [[New User|00000000090002]]



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This zettel lists all zettel that should act as a template for new zettel.
These zettel will be included in the ""New"" menu of the WebUI.
* [[New Zettel|00000000090001]]
* [[New Role|00000000090004]]
* [[New Tag|00000000090003]]
* [[New User|00000000090002]]

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;;;----------------------------------------------------------------------------
;;; Copyright (c) 2023-present Detlef Stern
;;;
;;; This file is part of Zettelstore.
;;;
;;; Zettelstore is licensed under the latest version of the EUPL (European
;;; Union Public License). Please see file LICENSE.txt for your rights and
;;; obligations under this license.



;;;----------------------------------------------------------------------------

;;; This zettel contains all sxn definitions that are independent of specific
;;; subsystems, such as WebUI, API, or other. It just contains generic code to
;;; be used elsewhere.

;; Constants NIL and T
(defconst NIL ())
(defconst T   'T)

;; Function not
(defun not (x) (if x NIL T))
(defconst not not)

;; let macro
;;
;; (let (BINDING ...) EXPR ...), where BINDING is a list of two elements
;;   (SYMBOL EXPR)
(defmacro let (bindings . body)
    `((lambda ,(map car bindings) ,@body) ,@(map cadr bindings)))

;; let* macro
;;
;; (let* (BINDING ...) EXPR ...), where SYMBOL may occur in later bindings.
(defmacro let* (bindings . body)
    (if (null? bindings)
        `((lambda () ,@body))
        `((lambda (,(caar bindings))
                  (let* ,(cdr bindings) ,@body))
                  ,(cadar bindings))))














;; and macro
;;
;; (and EXPR ...)
(defmacro and args
    (cond ((null? args)       T)
          ((null? (cdr args)) (car args))








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;;;----------------------------------------------------------------------------
;;; Copyright (c) 2023-present Detlef Stern
;;;
;;; This file is part of Zettelstore.
;;;
;;; Zettelstore is licensed under the latest version of the EUPL (European
;;; Union Public License). Please see file LICENSE.txt for your rights and
;;; obligations under this license.
;;;
;;; SPDX-License-Identifier: EUPL-1.2
;;; SPDX-FileCopyrightText: 2023-present Detlef Stern
;;;----------------------------------------------------------------------------

;;; This zettel contains sxn definitions that are independent of specific
;;; subsystems, such as WebUI, API, or other. It just contains generic code to
;;; be used in all places. It asumes that the symbols NIL and T are defined.




;; not macro

(defmacro not (x) `(if ,x NIL T))


;; not= macro, to negate an equivalence



(defmacro not= args `(not (= ,@args)))


;; let* macro
;;
;; (let* (BINDING ...) EXPR ...), where SYMBOL may occur in later bindings.
(defmacro let* (bindings . body)
    (if (null? bindings)
        `(begin ,@body)
        `(let ((,(caar bindings) ,(cadar bindings)))
               (let* ,(cdr bindings) ,@body))))

;; cond macro
;;
;; (cond ((COND EXPR) ...))
(defmacro cond clauses
    (if (null? clauses)
        ()
        (let* ((clause (car clauses))
               (the-cond (car clause)))
              (if (= the-cond T)
                  `(begin ,@(cdr clause))
                  `(if ,the-cond
                       (begin ,@(cdr clause))
                       (cond ,@(cdr clauses)))))))

;; and macro
;;
;; (and EXPR ...)
(defmacro and args
    (cond ((null? args)       T)
          ((null? (cdr args)) (car args))

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`(article
  (header (h1 "Rename Zettel " ,zid))
  (p "Do you really want to rename this zettel?")
  ,@(if incoming
    `((div (@ (class "zs-warning"))
      (h2 "Warning!")
      (p "If you rename this zettel, incoming references from the following zettel will become invalid.")
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;;;----------------------------------------------------------------------------
;;; Copyright (c) 2023-present Detlef Stern
;;;
;;; This file is part of Zettelstore.
;;;
;;; Zettelstore is licensed under the latest version of the EUPL (European
;;; Union Public License). Please see file LICENSE.txt for your rights and
;;; obligations under this license.
;;;
;;; SPDX-License-Identifier: EUPL-1.2
;;; SPDX-FileCopyrightText: 2023-present Detlef Stern
;;;----------------------------------------------------------------------------

`(article
  (header (h1 "Rename Zettel " ,zid))
  (p "Do you really want to rename this zettel?")
  ,@(if incoming
    `((div (@ (class "zs-warning"))
      (h2 "Warning!")
      (p "If you rename this zettel, incoming references from the following zettel will become invalid.")
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      (ul ,@(map wui-item useless))
    ))
  )
  (form (@ (method "POST"))
    (input (@ (type "hidden") (id "curzid") (name "curzid") (value ,zid)))
    (div
      (label (@ (for "newzid")) "New zettel id")



      (input (@ (class "zs-input") (type "text") (id "newzid") (name "newzid") (placeholder "ZID..") (value ,zid) (autofocus))))
    (div (input (@ (class "zs-primary") (type "submit") (value "Rename"))))
  )
  ,(wui-meta-desc metapairs)
)







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      (ul ,@(map wui-item useless))
    ))
  )
  (form (@ (method "POST"))
    (input (@ (type "hidden") (id "curzid") (name "curzid") (value ,zid)))
    (div
      (label (@ (for "newzid")) "New zettel id")
      (input (@ (class "zs-input") (type "text") (inputmode "numeric") (id "newzid") (name "newzid")
                (pattern "\\d{14}")
                (title "New zettel identifier, must be unique")
                (placeholder "ZID..") (value ,zid) (autofocus))))
    (div (input (@ (class "zs-primary") (type "submit") (value "Rename"))))
  )
  ,(wui-meta-desc metapairs)
)

Added box/constbox/roleconfiguration.zettel.









































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Zettel with role ""configuration"" are used within Zettelstore to manage and to show the current configuration of the software.

Typically, there are some public zettel that show the license of this software, its dependencies, some CSS code to make the default web user interface a litte bit nicer, and the defult image to singal a broken image.

Other zettel are only visible if an user has authenticated itself, or if there is no authentication enabled.
In this case, one additional configuration zettel is the zettel containing the version number of this software.
Other zettel are showing the supported metadata keys and supported syntax values.
Zettel that allow to configure the menu of template to create new zettel are also using the role ""configuration"".

Most important is the zettel that contains the runtime configuration.
You may change its metadata value to change the behaviour of the software.

One configuration is the ""expert mode"".
If enabled, and if you are authorized so see them, you will discover some more zettel.
For example, HTML templates to customize the default web user interface, to show the application log, to see statistics about zettel boxes, to show the host name and it operating system, and many more.

You are allowed to add your own configuration zettel, for example if you want to customize the look and feel of zettel by placing relevant data into your own zettel.

By default, user zettel (for authentification) use also the role ""configuration"".
However, you are allowed to change this.

Added box/constbox/rolerole.zettel.





















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A zettel with the role ""role"" describes a specific role.
The described role must be the title of such a zettel.

This zettel is such a zettel, as it describes the meaning of the role ""role"".
Therefore it has the title ""role"" too.
If you like, this zettel is a meta-role.

You are free to create your own role-describing zettel.
For example, you want to document the intended meaning of the role.
You might also be interested to describe needed metadata so that some software is enabled to analyse or to process your zettel.

Added box/constbox/roletag.zettel.













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A zettel with role ""tag"" is a zettel that describes specific tag.
The tag name must be the title of such a zettel.

Such zettel are similar to this specific zettel: this zettel describes zettel with a role ""tag"".
These zettel with the role ""tag"" describe specific tags.
These might form a hierarchy of meta-tags (and meta-roles).

Added box/constbox/rolezettel.zettel.















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A zettel with the role ""zettel"" is typically used to document your own thoughts.
Such zettel are the main reason to use the software Zettelstore.

The only predefined zettel with the role ""zettel"" is the [[default home zettel|00010000000000]], which contains some welcome information.

You are free to change this.
In this case you should modify this zettel too, so that it reflects your own use of zettel with the role ""zettel"".

Changes to box/constbox/start.sxn.

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;;;----------------------------------------------------------------------------
;;; Copyright (c) 2023-present Detlef Stern
;;;
;;; This file is part of Zettelstore.
;;;
;;; Zettelstore is licensed under the latest version of the EUPL (European
;;; Union Public License). Please see file LICENSE.txt for your rights and
;;; obligations under this license.



;;;----------------------------------------------------------------------------

;;; This zettel is the start of the loading sequence for Sx code used in the
;;; Zettelstore. Via the precursor metadata, dependend zettel are evaluated
;;; before this zettel. You must always depend, directly or indirectly on the
;;; "Zettelstore Sxn Base Code" zettel. It provides the base definitions.








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;;;----------------------------------------------------------------------------
;;; Copyright (c) 2023-present Detlef Stern
;;;
;;; This file is part of Zettelstore.
;;;
;;; Zettelstore is licensed under the latest version of the EUPL (European
;;; Union Public License). Please see file LICENSE.txt for your rights and
;;; obligations under this license.
;;;
;;; SPDX-License-Identifier: EUPL-1.2
;;; SPDX-FileCopyrightText: 2023-present Detlef Stern
;;;----------------------------------------------------------------------------

;;; This zettel is the start of the loading sequence for Sx code used in the
;;; Zettelstore. Via the precursor metadata, dependend zettel are evaluated
;;; before this zettel. You must always depend, directly or indirectly on the
;;; "Zettelstore Sxn Base Code" zettel. It provides the base definitions.

Changes to box/constbox/wuicode.sxn.

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;;;----------------------------------------------------------------------------
;;; Copyright (c) 2023-present Detlef Stern
;;;
;;; This file is part of Zettelstore.
;;;
;;; Zettelstore is licensed under the latest version of the EUPL (European
;;; Union Public License). Please see file LICENSE.txt for your rights and
;;; obligations under this license.



;;;----------------------------------------------------------------------------

;; Contains WebUI specific code, but not related to a specific template.

;; wui-list-item returns the argument as a HTML list item.
(defun wui-item (s) `(li ,s))

;; wui-table-row takes a pair and translates it into a HTML table row with
;; two columns.
(defun wui-table-row (p)
    `(tr (td ,(car p)) (td ,(cdr p))))

;; wui-valid-link translates a local link into a HTML link. A link is a pair
;; (valid . url). If valid is not truish, only the invalid url is returned.
(defun wui-valid-link (l)
    (if (car l)
        `(li (a (@ (href ,(cdr l))) ,(cdr l)))
        `(li ,(cdr l))))








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;;;----------------------------------------------------------------------------
;;; Copyright (c) 2023-present Detlef Stern
;;;
;;; This file is part of Zettelstore.
;;;
;;; Zettelstore is licensed under the latest version of the EUPL (European
;;; Union Public License). Please see file LICENSE.txt for your rights and
;;; obligations under this license.
;;;
;;; SPDX-License-Identifier: EUPL-1.2
;;; SPDX-FileCopyrightText: 2023-present Detlef Stern
;;;----------------------------------------------------------------------------

;; Contains WebUI specific code, but not related to a specific template.

;; wui-list-item returns the argument as a HTML list item.
(defun wui-item (s) `(li ,s))

;; wui-info-meta-table-row takes a pair and translates it into a HTML table row
;; with two columns.
(defun wui-info-meta-table-row (p)
    `(tr (td (@ (class zs-info-meta-key)) ,(car p)) (td (@ (class zs-info-meta-value)) ,(cdr p))))

;; wui-valid-link translates a local link into a HTML link. A link is a pair
;; (valid . url). If valid is not truish, only the invalid url is returned.
(defun wui-valid-link (l)
    (if (car l)
        `(li (a (@ (href ,(cdr l))) ,(cdr l)))
        `(li ,(cdr l))))
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;; identifier. It is used in the base template to update the metadata of the
;; HTML page to include some role specific CSS code.
;; Referenced in function "ROLE-DEFAULT-meta".
(defvar CSS-ROLE-map '())

;; ROLE-DEFAULT-meta returns some metadata for the base template. Any role
;; specific code should include the returned list of this function.
(defun ROLE-DEFAULT-meta (env)
    `(,@(let* ((meta-role (environment-lookup 'meta-role env))
               (entry (assoc CSS-ROLE-map meta-role)))
              (if (pair? entry)
                  `((link (@ (rel "stylesheet") (href ,(zid-content-path (cdr entry))))))
              )
        )
    )
)

;;; ACTION-SEPARATOR defines a HTML value that separates actions links.
(defvar ACTION-SEPARATOR '(@H " &#183; "))

;;; ROLE-DEFAULT-actions returns the default text for actions.
(defun ROLE-DEFAULT-actions (env)
    `(,@(let ((copy-url (environment-lookup 'copy-url env)))
             (if (defined? copy-url) `((@H " &#183; ") (a (@ (href ,copy-url)) "Copy"))))
      ,@(let ((version-url (environment-lookup 'version-url env)))
             (if (defined? version-url) `((@H " &#183; ") (a (@ (href ,version-url)) "Version"))))
      ,@(let ((child-url (environment-lookup 'child-url env)))
             (if (defined? child-url) `((@H " &#183; ") (a (@ (href ,child-url)) "Child"))))
      ,@(let ((folge-url (environment-lookup 'folge-url env)))
             (if (defined? folge-url) `((@H " &#183; ") (a (@ (href ,folge-url)) "Folge"))))
    )
)

;;; ROLE-tag-actions returns an additional action "Zettel" for zettel with role "tag".
(defun ROLE-tag-actions (env)
    `(,@(ROLE-DEFAULT-actions env)
      ,@(let ((title (environment-lookup 'title env)))
             (if (and (defined? title) title)
                 `(,ACTION-SEPARATOR (a (@ (href ,(query->url (string-append "tags:" title)))) "Zettel"))











             )
        )
    )
)

;;; ROLE-DEFAULT-heading returns the default text for headings, below the
;;; references of a zettel. In most cases it should be called from an
;;; overwriting function.
(defun ROLE-DEFAULT-heading (env)
    `(,@(let ((meta-url (environment-lookup 'meta-url env)))
           (if (defined? meta-url) `((br) "URL: " ,(url-to-html meta-url))))





      ,@(let ((meta-author (environment-lookup 'meta-author env)))
           (if (and (defined? meta-author) meta-author) `((br) "By " ,meta-author)))
    )
)







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;; identifier. It is used in the base template to update the metadata of the
;; HTML page to include some role specific CSS code.
;; Referenced in function "ROLE-DEFAULT-meta".
(defvar CSS-ROLE-map '())

;; ROLE-DEFAULT-meta returns some metadata for the base template. Any role
;; specific code should include the returned list of this function.
(defun ROLE-DEFAULT-meta (binding)
    `(,@(let* ((meta-role (binding-lookup 'meta-role binding))
               (entry (assoc CSS-ROLE-map meta-role)))
              (if (pair? entry)
                  `((link (@ (rel "stylesheet") (href ,(zid-content-path (cdr entry))))))
              )
        )
    )
)

;; ACTION-SEPARATOR defines a HTML value that separates actions links.
(defvar ACTION-SEPARATOR '(@H " &#183; "))

;; ROLE-DEFAULT-actions returns the default text for actions.
(defun ROLE-DEFAULT-actions (binding)
    `(,@(let ((copy-url (binding-lookup 'copy-url binding)))
             (if (defined? copy-url) `((@H " &#183; ") (a (@ (href ,copy-url)) "Copy"))))
      ,@(let ((version-url (binding-lookup 'version-url binding)))
             (if (defined? version-url) `((@H " &#183; ") (a (@ (href ,version-url)) "Version"))))
      ,@(let ((child-url (binding-lookup 'child-url binding)))
             (if (defined? child-url) `((@H " &#183; ") (a (@ (href ,child-url)) "Child"))))
      ,@(let ((folge-url (binding-lookup 'folge-url binding)))
             (if (defined? folge-url) `((@H " &#183; ") (a (@ (href ,folge-url)) "Folge"))))
    )
)

;; ROLE-tag-actions returns an additional action "Zettel" for zettel with role "tag".
(defun ROLE-tag-actions (binding)
    `(,@(ROLE-DEFAULT-actions binding)
      ,@(let ((title (binding-lookup 'title binding)))
             (if (and (defined? title) title)
                 `(,ACTION-SEPARATOR (a (@ (href ,(query->url (concat "tags:" title)))) "Zettel"))
             )
        )
    )
)

;; ROLE-role-actions returns an additional action "Zettel" for zettel with role "role".
(defun ROLE-role-actions (binding)
    `(,@(ROLE-DEFAULT-actions binding)
      ,@(let ((title (binding-lookup 'title binding)))
             (if (and (defined? title) title)
                 `(,ACTION-SEPARATOR (a (@ (href ,(query->url (concat "role:" title)))) "Zettel"))
             )
        )
    )
)

;; ROLE-DEFAULT-heading returns the default text for headings, below the
;; references of a zettel. In most cases it should be called from an
;; overwriting function.
(defun ROLE-DEFAULT-heading (binding)
    `(,@(let ((meta-url (binding-lookup 'meta-url binding)))
           (if (defined? meta-url) `((br) "URL: " ,(url-to-html meta-url))))
      ,@(let ((urls (binding-lookup 'urls binding)))
           (if (defined? urls)
               (map (lambda (u) `(@L (br) ,(car u) ": " ,(url-to-html (cdr u)))) urls)
           )
        )
      ,@(let ((meta-author (binding-lookup 'meta-author binding)))
           (if (and (defined? meta-author) meta-author) `((br) "By " ,meta-author)))
    )
)

Changes to box/constbox/zettel.sxn.














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`(article
  (header
    (h1 ,heading)
    (div (@ (class "zs-meta"))
      ,@(if (bound? 'edit-url) `((a (@ (href ,edit-url)) "Edit") (@H " &#183; ")))
      ,zid (@H " &#183; ")
      (a (@ (href ,info-url)) "Info") (@H " &#183; ")
      "(" ,@(if (bound? 'role-url) `((a (@ (href ,role-url)) ,meta-role)))
          ,@(if (and (bound? 'folge-role-url) (bound? 'meta-folge-role))
                `((@H " &rarr; ") (a (@ (href ,folge-role-url)) ,meta-folge-role)))
      ")"
      ,@(if tag-refs `((@H " &#183; ") ,@tag-refs))
      ,@(ROLE-DEFAULT-actions (current-environment))
      ,@(if predecessor-refs `((br) "Predecessor: " ,predecessor-refs))
      ,@(if precursor-refs `((br) "Precursor: " ,precursor-refs))
      ,@(if superior-refs `((br) "Superior: " ,superior-refs))
      ,@(ROLE-DEFAULT-heading (current-environment))
    )
  )
  ,@content
  ,endnotes
  ,@(if (or folge-links subordinate-links back-links successor-links)
    `((nav
      ,@(if folge-links `((details (@ (open)) (summary "Folgezettel") (ul ,@(map wui-item-link folge-links)))))
      ,@(if subordinate-links `((details (@ (open)) (summary "Subordinates") (ul ,@(map wui-item-link subordinate-links)))))
      ,@(if back-links `((details (@ (open)) (summary "Incoming") (ul ,@(map wui-item-link back-links)))))
      ,@(if successor-links `((details (@ (open)) (summary "Successors") (ul ,@(map wui-item-link successor-links)))))
     ))
  )
)
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;;;----------------------------------------------------------------------------
;;; Copyright (c) 2023-present Detlef Stern
;;;
;;; This file is part of Zettelstore.
;;;
;;; Zettelstore is licensed under the latest version of the EUPL (European
;;; Union Public License). Please see file LICENSE.txt for your rights and
;;; obligations under this license.
;;;
;;; SPDX-License-Identifier: EUPL-1.2
;;; SPDX-FileCopyrightText: 2023-present Detlef Stern
;;;----------------------------------------------------------------------------

`(article
  (header
    (h1 ,heading)
    (div (@ (class "zs-meta"))
      ,@(if (bound? 'edit-url) `((a (@ (href ,edit-url)) "Edit") (@H " &#183; ")))
      ,zid (@H " &#183; ")
      (a (@ (href ,info-url)) "Info") (@H " &#183; ")
      "(" ,@(if (bound? 'role-url) `((a (@ (href ,role-url)) ,meta-role)))
          ,@(if (and (bound? 'folge-role-url) (bound? 'meta-folge-role))
                `((@H " &rarr; ") (a (@ (href ,folge-role-url)) ,meta-folge-role)))
      ")"
      ,@(if tag-refs `((@H " &#183; ") ,@tag-refs))
      ,@(ROLE-DEFAULT-actions (current-binding))
      ,@(if predecessor-refs `((br) "Predecessor: " ,predecessor-refs))
      ,@(if precursor-refs `((br) "Precursor: " ,precursor-refs))
      ,@(if superior-refs `((br) "Superior: " ,superior-refs))
      ,@(ROLE-DEFAULT-heading (current-binding))
    )
  )
  ,@content
  ,endnotes
  ,@(if (or folge-links subordinate-links back-links successor-links)
    `((nav
      ,@(if folge-links `((details (@ (,folge-open)) (summary "Folgezettel") (ul ,@(map wui-item-link folge-links)))))
      ,@(if subordinate-links `((details (@ (,subordinate-open)) (summary "Subordinates") (ul ,@(map wui-item-link subordinate-links)))))
      ,@(if back-links `((details (@ (,back-open)) (summary "Incoming") (ul ,@(map wui-item-link back-links)))))
      ,@(if successor-links `((details (@ (,successor-open)) (summary "Successors") (ul ,@(map wui-item-link successor-links)))))
     ))
  )
)

Changes to box/dirbox/dirbox.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package dirbox provides a directory-based zettel box.
package dirbox

import (
	"context"








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

// Package dirbox provides a directory-based zettel box.
package dirbox

import (
	"context"
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	_ notifyTypeSpec = iota
	dirNotifyAny
	dirNotifySimple
	dirNotifyFS
)

func getDirSrvInfo(log *logger.Logger, notifyType string) notifyTypeSpec {
	for count := 0; count < 2; count++ {
		switch notifyType {
		case kernel.BoxDirTypeNotify:
			return dirNotifyFS
		case kernel.BoxDirTypeSimple:
			return dirNotifySimple
		default:
			notifyType = kernel.Main.GetConfig(kernel.BoxService, kernel.BoxDefaultDirType).(string)







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	_ notifyTypeSpec = iota
	dirNotifyAny
	dirNotifySimple
	dirNotifyFS
)

func getDirSrvInfo(log *logger.Logger, notifyType string) notifyTypeSpec {
	for range 2 {
		switch notifyType {
		case kernel.BoxDirTypeNotify:
			return dirNotifyFS
		case kernel.BoxDirTypeSimple:
			return dirNotifySimple
		default:
			notifyType = kernel.Main.GetConfig(kernel.BoxService, kernel.BoxDefaultDirType).(string)
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	return box.StartStateStopped
}

func (dp *dirBox) Start(context.Context) error {
	dp.mxCmds.Lock()
	defer dp.mxCmds.Unlock()
	dp.fCmds = make([]chan fileCmd, 0, dp.fSrvs)
	for i := uint32(0); i < dp.fSrvs; i++ {
		cc := make(chan fileCmd)
		go fileService(i, dp.log.Clone().Str("sub", "file").Uint("fn", uint64(i)).Child(), dp.dir, cc)
		dp.fCmds = append(dp.fCmds, cc)
	}

	var notifier notify.Notifier
	var err error
	switch dp.notifySpec {
	case dirNotifySimple:
		notifier, err = notify.NewSimpleDirNotifier(dp.log.Clone().Str("notify", "simple").Child(), dp.dir)
	default:
		notifier, err = notify.NewFSDirNotifier(dp.log.Clone().Str("notify", "fs").Child(), dp.dir)
	}
	if err != nil {
		dp.log.Fatal().Err(err).Msg("Unable to create directory supervisor")
		dp.stopFileServices()
		return err
	}
	dp.dirSrv = notify.NewDirService(
		dp,
		dp.log.Clone().Str("sub", "dirsrv").Child(),
		notifier,







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	return box.StartStateStopped
}

func (dp *dirBox) Start(context.Context) error {
	dp.mxCmds.Lock()
	defer dp.mxCmds.Unlock()
	dp.fCmds = make([]chan fileCmd, 0, dp.fSrvs)
	for i := range dp.fSrvs {
		cc := make(chan fileCmd)
		go fileService(i, dp.log.Clone().Str("sub", "file").Uint("fn", uint64(i)).Child(), dp.dir, cc)
		dp.fCmds = append(dp.fCmds, cc)
	}

	var notifier notify.Notifier
	var err error
	switch dp.notifySpec {
	case dirNotifySimple:
		notifier, err = notify.NewSimpleDirNotifier(dp.log.Clone().Str("notify", "simple").Child(), dp.dir)
	default:
		notifier, err = notify.NewFSDirNotifier(dp.log.Clone().Str("notify", "fs").Child(), dp.dir)
	}
	if err != nil {
		dp.log.Error().Err(err).Msg("Unable to create directory supervisor")
		dp.stopFileServices()
		return err
	}
	dp.dirSrv = notify.NewDirService(
		dp,
		dp.log.Clone().Str("sub", "dirsrv").Child(),
		notifier,

Changes to box/dirbox/dirbox_test.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package dirbox

import "testing"

func TestIsPrime(t *testing.T) {








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package dirbox

import "testing"

func TestIsPrime(t *testing.T) {
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		if got != tc.exp {
			t.Errorf("isPrime(%d)=%v, but got %v", tc.n, tc.exp, got)
		}
	}
}

func TestMakePrime(t *testing.T) {
	for i := uint32(0); i < 1500; i++ {
		np := makePrime(i)
		if np < i {
			t.Errorf("makePrime(%d) < %d", i, np)
			continue
		}
		if !isPrime(np) {
			t.Errorf("makePrime(%d) == %d is not prime", i, np)







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		if got != tc.exp {
			t.Errorf("isPrime(%d)=%v, but got %v", tc.n, tc.exp, got)
		}
	}
}

func TestMakePrime(t *testing.T) {
	for i := range uint32(1500) {
		np := makePrime(i)
		if np < i {
			t.Errorf("makePrime(%d) < %d", i, np)
			continue
		}
		if !isPrime(np) {
			t.Errorf("makePrime(%d) == %d is not prime", i, np)

Changes to box/dirbox/service.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package dirbox

import (
	"context"

	"io"
	"os"
	"path/filepath"
	"time"


	"zettelstore.de/z/box/filebox"
	"zettelstore.de/z/box/notify"
	"zettelstore.de/z/input"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/logger"
	"zettelstore.de/z/zettel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

func fileService(i uint32, log *logger.Logger, dirPath string, cmds <-chan fileCmd) {
	// Something may panic. Ensure a running service.
	defer func() {
		if ri := recover(); ri != nil {
			kernel.Main.LogRecover("FileService", ri)
			go fileService(i, log, dirPath, cmds)
		}
	}()

	log.Trace().Uint("i", uint64(i)).Str("dirpath", dirPath).Msg("File service started")
	for cmd := range cmds {
		cmd.run(log, dirPath)
	}
	log.Trace().Uint("i", uint64(i)).Str("dirpath", dirPath).Msg("File service stopped")
}

type fileCmd interface {
	run(*logger.Logger, string)
}

const serviceTimeout = 5 * time.Second // must be shorter than the web servers timeout values for reading+writing.

// COMMAND: srvGetMeta ----------------------------------------
//
// Retrieves the meta data from a zettel.








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>





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<
















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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package dirbox

import (
	"context"
	"fmt"
	"io"
	"os"
	"path/filepath"
	"time"

	"t73f.de/r/zsc/input"
	"zettelstore.de/z/box/filebox"
	"zettelstore.de/z/box/notify"

	"zettelstore.de/z/kernel"
	"zettelstore.de/z/logger"
	"zettelstore.de/z/zettel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

func fileService(i uint32, log *logger.Logger, dirPath string, cmds <-chan fileCmd) {
	// Something may panic. Ensure a running service.
	defer func() {
		if ri := recover(); ri != nil {
			kernel.Main.LogRecover("FileService", ri)
			go fileService(i, log, dirPath, cmds)
		}
	}()

	log.Debug().Uint("i", uint64(i)).Str("dirpath", dirPath).Msg("File service started")
	for cmd := range cmds {
		cmd.run(dirPath)
	}
	log.Debug().Uint("i", uint64(i)).Str("dirpath", dirPath).Msg("File service stopped")
}

type fileCmd interface {
	run(string)
}

const serviceTimeout = 5 * time.Second // must be shorter than the web servers timeout values for reading+writing.

// COMMAND: srvGetMeta ----------------------------------------
//
// Retrieves the meta data from a zettel.
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	rc    chan<- resGetMeta
}
type resGetMeta struct {
	meta *meta.Meta
	err  error
}

func (cmd *fileGetMeta) run(log *logger.Logger, dirPath string) {
	var m *meta.Meta
	var err error

	entry := cmd.entry
	zid := entry.Zid
	if metaName := entry.MetaName; metaName == "" {
		contentName := entry.ContentName
		contentExt := entry.ContentExt
		if contentName == "" || contentExt == "" {
			log.Panic().Zid(zid).Msg("No meta, no content in getMeta")
		}
		if entry.HasMetaInContent() {
			m, _, err = parseMetaContentFile(zid, filepath.Join(dirPath, contentName))
		} else {
			m = filebox.CalcDefaultMeta(zid, contentExt)
		}
	} else {
		m, err = parseMetaFile(zid, filepath.Join(dirPath, metaName))
	}







|









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	rc    chan<- resGetMeta
}
type resGetMeta struct {
	meta *meta.Meta
	err  error
}

func (cmd *fileGetMeta) run(dirPath string) {
	var m *meta.Meta
	var err error

	entry := cmd.entry
	zid := entry.Zid
	if metaName := entry.MetaName; metaName == "" {
		contentName := entry.ContentName
		contentExt := entry.ContentExt
		if contentName == "" || contentExt == "" {
			err = fmt.Errorf("no meta, no content in getMeta, zid=%v", zid)

		} else if entry.HasMetaInContent() {
			m, _, err = parseMetaContentFile(zid, filepath.Join(dirPath, contentName))
		} else {
			m = filebox.CalcDefaultMeta(zid, contentExt)
		}
	} else {
		m, err = parseMetaFile(zid, filepath.Join(dirPath, metaName))
	}
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}
type resGetMetaContent struct {
	meta    *meta.Meta
	content []byte
	err     error
}

func (cmd *fileGetMetaContent) run(log *logger.Logger, dirPath string) {
	var m *meta.Meta
	var content []byte
	var err error

	entry := cmd.entry
	zid := entry.Zid
	contentName := entry.ContentName
	contentExt := entry.ContentExt
	contentPath := filepath.Join(dirPath, contentName)
	if metaName := entry.MetaName; metaName == "" {
		if contentName == "" || contentExt == "" {
			log.Panic().Zid(zid).Msg("No meta, no content in getMetaContent")
		}
		if entry.HasMetaInContent() {
			m, content, err = parseMetaContentFile(zid, contentPath)
		} else {
			m = filebox.CalcDefaultMeta(zid, contentExt)
			content, err = os.ReadFile(contentPath)
		}
	} else {
		m, err = parseMetaFile(zid, filepath.Join(dirPath, metaName))







|











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<
|







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}
type resGetMetaContent struct {
	meta    *meta.Meta
	content []byte
	err     error
}

func (cmd *fileGetMetaContent) run(dirPath string) {
	var m *meta.Meta
	var content []byte
	var err error

	entry := cmd.entry
	zid := entry.Zid
	contentName := entry.ContentName
	contentExt := entry.ContentExt
	contentPath := filepath.Join(dirPath, contentName)
	if metaName := entry.MetaName; metaName == "" {
		if contentName == "" || contentExt == "" {
			err = fmt.Errorf("no meta, no content in getMetaContent, zid=%v", zid)

		} else if entry.HasMetaInContent() {
			m, content, err = parseMetaContentFile(zid, contentPath)
		} else {
			m = filebox.CalcDefaultMeta(zid, contentExt)
			content, err = os.ReadFile(contentPath)
		}
	} else {
		m, err = parseMetaFile(zid, filepath.Join(dirPath, metaName))
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type fileSetZettel struct {
	entry  *notify.DirEntry
	zettel zettel.Zettel
	rc     chan<- resSetZettel
}
type resSetZettel = error

func (cmd *fileSetZettel) run(log *logger.Logger, dirPath string) {

	entry := cmd.entry
	zid := entry.Zid
	contentName := entry.ContentName
	m := cmd.zettel.Meta
	content := cmd.zettel.Content.AsBytes()
	metaName := entry.MetaName
	if metaName == "" {
		if contentName == "" {
			log.Panic().Zid(zid).Msg("No meta, no content in setZettel")
		}
		contentPath := filepath.Join(dirPath, contentName)
		if entry.HasMetaInContent() {
			err := writeZettelFile(contentPath, m, content)
			cmd.rc <- err
			return
		}
		err := writeFileContent(contentPath, content)

		cmd.rc <- err
		return
	}

	err := writeMetaFile(filepath.Join(dirPath, metaName), m)
	if err == nil && contentName != "" {
		err = writeFileContent(filepath.Join(dirPath, contentName), content)
	}
	cmd.rc <- err
}

func writeMetaFile(metaPath string, m *meta.Meta) error {







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>








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>




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type fileSetZettel struct {
	entry  *notify.DirEntry
	zettel zettel.Zettel
	rc     chan<- resSetZettel
}
type resSetZettel = error

func (cmd *fileSetZettel) run(dirPath string) {
	var err error
	entry := cmd.entry
	zid := entry.Zid
	contentName := entry.ContentName
	m := cmd.zettel.Meta
	content := cmd.zettel.Content.AsBytes()
	metaName := entry.MetaName
	if metaName == "" {
		if contentName == "" {
			err = fmt.Errorf("no meta, no content in setZettel, zid=%v", zid)
		} else {
			contentPath := filepath.Join(dirPath, contentName)
			if entry.HasMetaInContent() {
				err = writeZettelFile(contentPath, m, content)
				cmd.rc <- err
				return
			}
			err = writeFileContent(contentPath, content)
		}
		cmd.rc <- err
		return
	}

	err = writeMetaFile(filepath.Join(dirPath, metaName), m)
	if err == nil && contentName != "" {
		err = writeFileContent(filepath.Join(dirPath, contentName), content)
	}
	cmd.rc <- err
}

func writeMetaFile(metaPath string, m *meta.Meta) error {
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}

func writeZettelFile(contentPath string, m *meta.Meta, content []byte) error {
	zettelFile, err := openFileWrite(contentPath)
	if err != nil {
		return err
	}
	if err == nil {
		err = writeMetaHeader(zettelFile, m)
	}
	if err == nil {
		_, err = zettelFile.Write(content)
	}
	if err1 := zettelFile.Close(); err == nil {
		err = err1
	}
	return err







<
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<







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}

func writeZettelFile(contentPath string, m *meta.Meta, content []byte) error {
	zettelFile, err := openFileWrite(contentPath)
	if err != nil {
		return err
	}

	err = writeMetaHeader(zettelFile, m)

	if err == nil {
		_, err = zettelFile.Write(content)
	}
	if err1 := zettelFile.Close(); err == nil {
		err = err1
	}
	return err
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type fileDeleteZettel struct {
	entry *notify.DirEntry
	rc    chan<- resDeleteZettel
}
type resDeleteZettel = error

func (cmd *fileDeleteZettel) run(log *logger.Logger, dirPath string) {
	var err error

	entry := cmd.entry
	contentName := entry.ContentName
	contentPath := filepath.Join(dirPath, contentName)
	if metaName := entry.MetaName; metaName == "" {
		if contentName == "" {
			log.Panic().Zid(entry.Zid).Msg("No meta, no content in getMetaContent")
		}
		err = os.Remove(contentPath)

	} else {
		if contentName != "" {
			err = os.Remove(contentPath)
		}
		err1 := os.Remove(filepath.Join(dirPath, metaName))
		if err == nil {
			err = err1







|







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>







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type fileDeleteZettel struct {
	entry *notify.DirEntry
	rc    chan<- resDeleteZettel
}
type resDeleteZettel = error

func (cmd *fileDeleteZettel) run(dirPath string) {
	var err error

	entry := cmd.entry
	contentName := entry.ContentName
	contentPath := filepath.Join(dirPath, contentName)
	if metaName := entry.MetaName; metaName == "" {
		if contentName == "" {
			err = fmt.Errorf("no meta, no content in deleteZettel, zid=%v", entry.Zid)
		} else {
			err = os.Remove(contentPath)
		}
	} else {
		if contentName != "" {
			err = os.Remove(contentPath)
		}
		err1 := os.Remove(filepath.Join(dirPath, metaName))
		if err == nil {
			err = err1
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		m,
		entry.Zid,
		entry.ContentExt,
		entry.MetaName != "",
		entry.UselessFiles,
	)
}







func openFileWrite(path string) (*os.File, error) {
	return os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
}

func writeFileZid(w io.Writer, zid id.Zid) error {
	_, err := io.WriteString(w, "id: ")
	if err == nil {
		_, err = w.Write(zid.Bytes())
		if err == nil {








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>
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>

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		m,
		entry.Zid,
		entry.ContentExt,
		entry.MetaName != "",
		entry.UselessFiles,
	)
}

// fileMode to create a new file: user, group, and all are allowed to read and write.
//
// If you want to forbid others or the group to read or to write, you must set
// umask(1) accordingly.
const fileMode os.FileMode = 0666 //

func openFileWrite(path string) (*os.File, error) {
	return os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, fileMode)
}

func writeFileZid(w io.Writer, zid id.Zid) error {
	_, err := io.WriteString(w, "id: ")
	if err == nil {
		_, err = w.Write(zid.Bytes())
		if err == nil {

Changes to box/filebox/filebox.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package filebox provides boxes that are stored in a file.
package filebox

import (
	"errors"
	"net/url"
	"path/filepath"
	"strings"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/box"
	"zettelstore.de/z/box/manager"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)









>
>
>











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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

// Package filebox provides boxes that are stored in a file.
package filebox

import (
	"errors"
	"net/url"
	"path/filepath"
	"strings"

	"t73f.de/r/zsc/api"
	"zettelstore.de/z/box"
	"zettelstore.de/z/box/manager"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

Changes to box/filebox/zipbox.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package filebox

import (
	"archive/zip"
	"context"

	"io"
	"strings"


	"zettelstore.de/z/box"
	"zettelstore.de/z/box/notify"
	"zettelstore.de/z/input"
	"zettelstore.de/z/logger"
	"zettelstore.de/z/query"
	"zettelstore.de/z/zettel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)









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>


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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package filebox

import (
	"archive/zip"
	"context"
	"fmt"
	"io"
	"strings"

	"t73f.de/r/zsc/input"
	"zettelstore.de/z/box"
	"zettelstore.de/z/box/notify"

	"zettelstore.de/z/logger"
	"zettelstore.de/z/query"
	"zettelstore.de/z/zettel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

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	var m *meta.Meta
	var src []byte
	var inMeta bool

	contentName := entry.ContentName
	if metaName := entry.MetaName; metaName == "" {
		if contentName == "" {
			zb.log.Panic().Zid(zid).Msg("No meta, no content in zipBox.GetZettel")

		}
		src, err = readZipFileContent(reader, entry.ContentName)
		if err != nil {
			return zettel.Zettel{}, err
		}
		if entry.HasMetaInContent() {
			inp := input.NewInput(src)







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	var m *meta.Meta
	var src []byte
	var inMeta bool

	contentName := entry.ContentName
	if metaName := entry.MetaName; metaName == "" {
		if contentName == "" {
			err = fmt.Errorf("no meta, no content in getZettel, zid=%v", zid)
			return zettel.Zettel{}, err
		}
		src, err = readZipFileContent(reader, entry.ContentName)
		if err != nil {
			return zettel.Zettel{}, err
		}
		if entry.HasMetaInContent() {
			inp := input.NewInput(src)
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func (zb *zipBox) readZipMeta(reader *zip.ReadCloser, zid id.Zid, entry *notify.DirEntry) (m *meta.Meta, err error) {
	var inMeta bool
	if metaName := entry.MetaName; metaName == "" {
		contentName := entry.ContentName
		contentExt := entry.ContentExt
		if contentName == "" || contentExt == "" {
			zb.log.Panic().Zid(zid).Msg("No meta, no content in getMeta")
		}
		if entry.HasMetaInContent() {
			m, err = readZipMetaFile(reader, zid, contentName)
		} else {
			m = CalcDefaultMeta(zid, contentExt)
		}
	} else {
		m, err = readZipMetaFile(reader, zid, metaName)
	}







|
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func (zb *zipBox) readZipMeta(reader *zip.ReadCloser, zid id.Zid, entry *notify.DirEntry) (m *meta.Meta, err error) {
	var inMeta bool
	if metaName := entry.MetaName; metaName == "" {
		contentName := entry.ContentName
		contentExt := entry.ContentExt
		if contentName == "" || contentExt == "" {
			err = fmt.Errorf("no meta, no content in getMeta, zid=%v", zid)

		} else if entry.HasMetaInContent() {
			m, err = readZipMetaFile(reader, zid, contentName)
		} else {
			m = CalcDefaultMeta(zid, contentExt)
		}
	} else {
		m, err = readZipMetaFile(reader, zid, metaName)
	}

Changes to box/helper.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package box

import (
	"net/url"
	"strconv"
	"time"

	"zettelstore.de/z/zettel/id"
)

// GetNewZid calculates a new and unused zettel identifier, based on the current date and time.
func GetNewZid(testZid func(id.Zid) (bool, error)) (id.Zid, error) {
	withSeconds := false
	for i := 0; i < 90; i++ { // Must be completed within 9 seconds (less than web/server.writeTimeout)
		zid := id.New(withSeconds)
		found, err := testZid(zid)
		if err != nil {
			return id.Invalid, err
		}
		if found {
			return zid, nil








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package box

import (
	"net/url"
	"strconv"
	"time"

	"zettelstore.de/z/zettel/id"
)

// GetNewZid calculates a new and unused zettel identifier, based on the current date and time.
func GetNewZid(testZid func(id.Zid) (bool, error)) (id.Zid, error) {
	withSeconds := false
	for range 90 { // Must be completed within 9 seconds (less than web/server.writeTimeout)
		zid := id.New(withSeconds)
		found, err := testZid(zid)
		if err != nil {
			return id.Invalid, err
		}
		if found {
			return zid, nil

Changes to box/manager/anteroom.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package manager

import (
	"sync"

	"zettelstore.de/z/zettel/id"
)

type arAction int

const (
	arNothing arAction = iota
	arReload
	arZettel
)

type anteroom struct {
	num     uint64
	next    *anteroom
	waiting id.Set
	curLoad int
	reload  bool
}

type anteroomQueue struct {
	mx      sync.Mutex
	nextNum uint64
	first   *anteroom
	last    *anteroom
	maxLoad int
}

func newAnteroomQueue(maxLoad int) *anteroomQueue { return &anteroomQueue{maxLoad: maxLoad} }









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>
>



















<








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package manager

import (
	"sync"

	"zettelstore.de/z/zettel/id"
)

type arAction int

const (
	arNothing arAction = iota
	arReload
	arZettel
)

type anteroom struct {

	next    *anteroom
	waiting id.Set
	curLoad int
	reload  bool
}

type anteroomQueue struct {
	mx      sync.Mutex

	first   *anteroom
	last    *anteroom
	maxLoad int
}

func newAnteroomQueue(maxLoad int) *anteroomQueue { return &anteroomQueue{maxLoad: maxLoad} }

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	}
	room := ar.makeAnteroom(zid)
	ar.last.next = room
	ar.last = room
}

func (ar *anteroomQueue) makeAnteroom(zid id.Zid) *anteroom {
	ar.nextNum++
	if zid == id.Invalid {
		return &anteroom{num: ar.nextNum, next: nil, waiting: nil, curLoad: 0, reload: true}
	}
	c := ar.maxLoad
	if c == 0 {
		c = 100
	}
	waiting := id.NewSetCap(ar.maxLoad, zid)
	return &anteroom{num: ar.nextNum, next: nil, waiting: waiting, curLoad: 1, reload: false}
}

func (ar *anteroomQueue) Reset() {
	ar.mx.Lock()
	defer ar.mx.Unlock()
	ar.first = ar.makeAnteroom(id.Invalid)
	ar.last = ar.first
}

func (ar *anteroomQueue) Reload(allZids id.Set) uint64 {
	ar.mx.Lock()
	defer ar.mx.Unlock()
	ar.deleteReloadedRooms()

	if ns := len(allZids); ns > 0 {
		ar.nextNum++
		ar.first = &anteroom{num: ar.nextNum, next: ar.first, waiting: allZids, curLoad: ns, reload: true}
		if ar.first.next == nil {
			ar.last = ar.first
		}
		return ar.nextNum
	}

	ar.first = nil
	ar.last = nil
	return 0

}

func (ar *anteroomQueue) deleteReloadedRooms() {
	room := ar.first
	for room != nil && room.reload {
		room = room.next
	}
	ar.first = room
	if room == nil {
		ar.last = nil
	}
}

func (ar *anteroomQueue) Dequeue() (arAction, id.Zid, uint64) {
	ar.mx.Lock()
	defer ar.mx.Unlock()
	first := ar.first
	if first == nil {
		return arNothing, id.Invalid, 0
	}
	roomNo := first.num
	if first.waiting == nil && first.reload {
		ar.removeFirst()
		return arReload, id.Invalid, roomNo
	}
	for zid := range first.waiting {
		delete(first.waiting, zid)
		if len(first.waiting) == 0 {
			ar.removeFirst()
		}
		return arZettel, zid, roomNo
	}
	ar.removeFirst()

	return arNothing, id.Invalid, 0
}

func (ar *anteroomQueue) removeFirst() {
	ar.first = ar.first.next
	if ar.first == nil {
		ar.last = nil
	}
}







<

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>













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	}
	room := ar.makeAnteroom(zid)
	ar.last.next = room
	ar.last = room
}

func (ar *anteroomQueue) makeAnteroom(zid id.Zid) *anteroom {

	if zid == id.Invalid {




		panic(zid)
	}
	waiting := id.NewSetCap(max(ar.maxLoad, 100), zid)
	return &anteroom{next: nil, waiting: waiting, curLoad: 1, reload: false}
}

func (ar *anteroomQueue) Reset() {
	ar.mx.Lock()
	defer ar.mx.Unlock()
	ar.first = &anteroom{next: nil, waiting: nil, curLoad: 0, reload: true}
	ar.last = ar.first
}

func (ar *anteroomQueue) Reload(allZids id.Set) {
	ar.mx.Lock()
	defer ar.mx.Unlock()
	ar.deleteReloadedRooms()

	if ns := len(allZids); ns > 0 {

		ar.first = &anteroom{next: ar.first, waiting: allZids, curLoad: ns, reload: true}
		if ar.first.next == nil {
			ar.last = ar.first
		}


	} else {
		ar.first = nil
		ar.last = nil

	}
}

func (ar *anteroomQueue) deleteReloadedRooms() {
	room := ar.first
	for room != nil && room.reload {
		room = room.next
	}
	ar.first = room
	if room == nil {
		ar.last = nil
	}
}

func (ar *anteroomQueue) Dequeue() (arAction, id.Zid, bool) {
	ar.mx.Lock()
	defer ar.mx.Unlock()
	first := ar.first
	if first != nil {



		if first.waiting == nil && first.reload {
			ar.removeFirst()
			return arReload, id.Invalid, false
		}
		for zid := range first.waiting {
			delete(first.waiting, zid)
			if len(first.waiting) == 0 {
				ar.removeFirst()
			}
			return arZettel, zid, first.reload
		}
		ar.removeFirst()
	}
	return arNothing, id.Invalid, false
}

func (ar *anteroomQueue) removeFirst() {
	ar.first = ar.first.next
	if ar.first == nil {
		ar.last = nil
	}
}

Changes to box/manager/anteroom_test.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package manager

import (
	"testing"

	"zettelstore.de/z/zettel/id"
)

func TestSimple(t *testing.T) {
	t.Parallel()
	ar := newAnteroomQueue(2)
	ar.EnqueueZettel(id.Zid(1))
	action, zid, rno := ar.Dequeue()
	if zid != id.Zid(1) || action != arZettel || rno != 1 {
		t.Errorf("Expected arZettel/1/1, but got %v/%v/%v", action, zid, rno)
	}
	_, zid, _ = ar.Dequeue()
	if zid != id.Invalid {
		t.Errorf("Expected invalid Zid, but got %v", zid)
	}
	ar.EnqueueZettel(id.Zid(1))
	ar.EnqueueZettel(id.Zid(2))








>
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>














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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package manager

import (
	"testing"

	"zettelstore.de/z/zettel/id"
)

func TestSimple(t *testing.T) {
	t.Parallel()
	ar := newAnteroomQueue(2)
	ar.EnqueueZettel(id.Zid(1))
	action, zid, lastReload := ar.Dequeue()
	if zid != id.Zid(1) || action != arZettel || lastReload {
		t.Errorf("Expected arZettel/1/false, but got %v/%v/%v", action, zid, lastReload)
	}
	_, zid, _ = ar.Dequeue()
	if zid != id.Invalid {
		t.Errorf("Expected invalid Zid, but got %v", zid)
	}
	ar.EnqueueZettel(id.Zid(1))
	ar.EnqueueZettel(id.Zid(2))

Changes to box/manager/box.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package manager

import (
	"context"
	"errors"








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package manager

import (
	"context"
	"errors"
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// Location returns some information where the box is located.
func (mgr *Manager) Location() string {
	if len(mgr.boxes) <= 2 {
		return "NONE"
	}
	var sb strings.Builder
	for i := 0; i < len(mgr.boxes)-2; i++ {
		if i > 0 {
			sb.WriteString(", ")
		}
		sb.WriteString(mgr.boxes[i].Location())
	}
	return sb.String()
}







|







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// Location returns some information where the box is located.
func (mgr *Manager) Location() string {
	if len(mgr.boxes) <= 2 {
		return "NONE"
	}
	var sb strings.Builder
	for i := range len(mgr.boxes) - 2 {
		if i > 0 {
			sb.WriteString(", ")
		}
		sb.WriteString(mgr.boxes[i].Location())
	}
	return sb.String()
}
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	}
	mgr.mgrMx.RLock()
	defer mgr.mgrMx.RUnlock()
	for i, p := range mgr.boxes {
		err := p.RenameZettel(ctx, curZid, newZid)
		var errZNF box.ErrZettelNotFound
		if err != nil && !errors.As(err, &errZNF) {
			for j := 0; j < i; j++ {
				mgr.boxes[j].RenameZettel(ctx, newZid, curZid)
			}
			return err
		}
	}
	mgr.idxRenameZettel(ctx, curZid, newZid)
	return nil







|







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	}
	mgr.mgrMx.RLock()
	defer mgr.mgrMx.RUnlock()
	for i, p := range mgr.boxes {
		err := p.RenameZettel(ctx, curZid, newZid)
		var errZNF box.ErrZettelNotFound
		if err != nil && !errors.As(err, &errZNF) {
			for j := range i {
				mgr.boxes[j].RenameZettel(ctx, newZid, curZid)
			}
			return err
		}
	}
	mgr.idxRenameZettel(ctx, curZid, newZid)
	return nil

Changes to box/manager/collect.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package manager

import (
	"strings"









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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package manager

import (
	"strings"

Changes to box/manager/enrich.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package manager

import (
	"context"
	"strconv"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/box"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

// Enrich computes additional properties and updates the given metadata.
func (mgr *Manager) Enrich(ctx context.Context, m *meta.Meta, boxNumber int) {








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package manager

import (
	"context"
	"strconv"

	"t73f.de/r/zsc/api"
	"zettelstore.de/z/box"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

// Enrich computes additional properties and updates the given metadata.
func (mgr *Manager) Enrich(ctx context.Context, m *meta.Meta, boxNumber int) {

Changes to box/manager/indexer.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package manager

import (
	"context"
	"fmt"








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package manager

import (
	"context"
	"fmt"
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		if !mgr.idxSleepService(timer, timerDuration) {
			return
		}
	}
}

func (mgr *Manager) idxWorkService(ctx context.Context) {
	var roomNum uint64
	var start time.Time
	for {
		switch action, zid, arRoomNum := mgr.idxAr.Dequeue(); action {
		case arNothing:
			return
		case arReload:
			mgr.idxLog.Debug().Msg("reload")
			roomNum = 0
			zids, err := mgr.FetchZids(ctx)
			if err == nil {
				start = time.Now()
				if rno := mgr.idxAr.Reload(zids); rno > 0 {
					roomNum = rno
				}
				mgr.idxMx.Lock()
				mgr.idxLastReload = time.Now().Local()
				mgr.idxSinceReload = 0
				mgr.idxMx.Unlock()
			}
		case arZettel:
			mgr.idxLog.Debug().Zid(zid).Msg("zettel")
			zettel, err := mgr.GetZettel(ctx, zid)
			if err != nil {
				// Zettel was deleted or is not accessible b/c of other reasons
				mgr.idxLog.Trace().Zid(zid).Msg("delete")
				mgr.idxMx.Lock()
				mgr.idxSinceReload++
				mgr.idxMx.Unlock()
				mgr.idxDeleteZettel(ctx, zid)
				continue
			}
			mgr.idxLog.Trace().Zid(zid).Msg("update")

			mgr.idxMx.Lock()
			if arRoomNum == roomNum {
				mgr.idxDurReload = time.Since(start)
			}
			mgr.idxSinceReload++
			mgr.idxMx.Unlock()
			mgr.idxUpdateZettel(ctx, zettel)
		}
	}
}

func (mgr *Manager) idxSleepService(timer *time.Timer, timerDuration time.Duration) bool {
	select {
	case _, ok := <-mgr.idxReady:







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		if !mgr.idxSleepService(timer, timerDuration) {
			return
		}
	}
}

func (mgr *Manager) idxWorkService(ctx context.Context) {

	var start time.Time
	for {
		switch action, zid, lastReload := mgr.idxAr.Dequeue(); action {
		case arNothing:
			return
		case arReload:
			mgr.idxLog.Debug().Msg("reload")

			zids, err := mgr.FetchZids(ctx)
			if err == nil {
				start = time.Now()
				mgr.idxAr.Reload(zids)


				mgr.idxMx.Lock()
				mgr.idxLastReload = time.Now().Local()
				mgr.idxSinceReload = 0
				mgr.idxMx.Unlock()
			}
		case arZettel:
			mgr.idxLog.Debug().Zid(zid).Msg("zettel")
			zettel, err := mgr.GetZettel(ctx, zid)
			if err != nil {
				// Zettel was deleted or is not accessible b/c of other reasons
				mgr.idxLog.Trace().Zid(zid).Msg("delete")



				mgr.idxDeleteZettel(ctx, zid)
				continue
			}
			mgr.idxLog.Trace().Zid(zid).Msg("update")
			mgr.idxUpdateZettel(ctx, zettel)
			mgr.idxMx.Lock()
			if lastReload {
				mgr.idxDurReload = time.Since(start)
			}
			mgr.idxSinceReload++
			mgr.idxMx.Unlock()

		}
	}
}

func (mgr *Manager) idxSleepService(timer *time.Timer, timerDuration time.Duration) bool {
	select {
	case _, ok := <-mgr.idxReady:
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			is := parser.ParseMetadata(pair.Value)
			collectInlineIndexData(&is, cData)
		case meta.TypeURL:
			if _, err := url.Parse(pair.Value); err == nil {
				cData.urls.Add(pair.Value)
			}
		default:

			for _, word := range strfun.NormalizeWords(pair.Value) {
				cData.words.Add(word)



			}
		}
	}
}











func (mgr *Manager) idxProcessData(ctx context.Context, zi *store.ZettelIndex, cData *collectData) {
	for ref := range cData.refs {
		if mgr.HasZettel(ctx, ref) {
			zi.AddBackRef(ref)
		} else {
			zi.AddDeadRef(ref)







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			is := parser.ParseMetadata(pair.Value)
			collectInlineIndexData(&is, cData)
		case meta.TypeURL:
			if _, err := url.Parse(pair.Value); err == nil {
				cData.urls.Add(pair.Value)
			}
		default:
			if descr.Type.IsSet {
				for _, val := range meta.ListFromValue(pair.Value) {
					idxCollectMetaValue(cData.words, val)
				}
			} else {
				idxCollectMetaValue(cData.words, pair.Value)
			}
		}
	}
}

func idxCollectMetaValue(stWords store.WordSet, value string) {
	if words := strfun.NormalizeWords(value); len(words) > 0 {
		for _, word := range words {
			stWords.Add(word)
		}
	} else {
		stWords.Add(value)
	}
}

func (mgr *Manager) idxProcessData(ctx context.Context, zi *store.ZettelIndex, cData *collectData) {
	for ref := range cData.refs {
		if mgr.HasZettel(ctx, ref) {
			zi.AddBackRef(ref)
		} else {
			zi.AddDeadRef(ref)

Changes to box/manager/manager.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package manager coordinates the various boxes and indexes of a Zettelstore.
package manager

import (
	"context"
	"io"
	"net/url"
	"sync"
	"time"

	"zettelstore.de/client.fossil/maps"
	"zettelstore.de/z/auth"
	"zettelstore.de/z/box"
	"zettelstore.de/z/box/manager/memstore"
	"zettelstore.de/z/box/manager/store"
	"zettelstore.de/z/config"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/logger"
	"zettelstore.de/z/strfun"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

// Package manager coordinates the various boxes and indexes of a Zettelstore.
package manager

import (
	"context"
	"io"
	"net/url"
	"sync"
	"time"


	"zettelstore.de/z/auth"
	"zettelstore.de/z/box"
	"zettelstore.de/z/box/manager/mapstore"
	"zettelstore.de/z/box/manager/store"
	"zettelstore.de/z/config"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/logger"
	"zettelstore.de/z/strfun"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
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func Register(scheme string, create createFunc) {
	if _, ok := registry[scheme]; ok {
		panic(scheme)
	}
	registry[scheme] = create
}

// GetSchemes returns all registered scheme, ordered by scheme string.
func GetSchemes() []string { return maps.Keys(registry) }

// Manager is a coordinating box.
type Manager struct {
	mgrLog       *logger.Logger
	stateMx      sync.RWMutex
	state        box.StartState
	mgrMx        sync.RWMutex
	rtConfig     config.Config







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func Register(scheme string, create createFunc) {
	if _, ok := registry[scheme]; ok {
		panic(scheme)
	}
	registry[scheme] = create
}




// Manager is a coordinating box.
type Manager struct {
	mgrLog       *logger.Logger
	stateMx      sync.RWMutex
	state        box.StartState
	mgrMx        sync.RWMutex
	rtConfig     config.Config
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	mgr := &Manager{
		mgrLog:       boxLog.Clone().Str("box", "manager").Child(),
		rtConfig:     rtConfig,
		infos:        make(chan box.UpdateInfo, len(boxURIs)*10),
		propertyKeys: propertyKeys,

		idxLog:   boxLog.Clone().Str("box", "index").Child(),
		idxStore: memstore.New(),
		idxAr:    newAnteroomQueue(1000),
		idxReady: make(chan struct{}, 1),
	}
	cdata := ConnectData{Number: 1, Config: rtConfig, Enricher: mgr, Notify: mgr.infos}
	boxes := make([]box.ManagedBox, 0, len(boxURIs)+2)
	for _, uri := range boxURIs {
		p, err := Connect(uri, authManager, &cdata)







|







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	mgr := &Manager{
		mgrLog:       boxLog.Clone().Str("box", "manager").Child(),
		rtConfig:     rtConfig,
		infos:        make(chan box.UpdateInfo, len(boxURIs)*10),
		propertyKeys: propertyKeys,

		idxLog:   boxLog.Clone().Str("box", "index").Child(),
		idxStore: createIdxStore(rtConfig),
		idxAr:    newAnteroomQueue(1000),
		idxReady: make(chan struct{}, 1),
	}
	cdata := ConnectData{Number: 1, Config: rtConfig, Enricher: mgr, Notify: mgr.infos}
	boxes := make([]box.ManagedBox, 0, len(boxURIs)+2)
	for _, uri := range boxURIs {
		p, err := Connect(uri, authManager, &cdata)
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		return nil, err
	}
	cdata.Number++
	boxes = append(boxes, constbox, compbox)
	mgr.boxes = boxes
	return mgr, nil
}





// RegisterObserver registers an observer that will be notified
// if a zettel was found to be changed.
func (mgr *Manager) RegisterObserver(f box.UpdateFunc) {
	if f != nil {
		mgr.mxObserver.Lock()
		mgr.observers = append(mgr.observers, f)







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		return nil, err
	}
	cdata.Number++
	boxes = append(boxes, constbox, compbox)
	mgr.boxes = boxes
	return mgr, nil
}

func createIdxStore(_ config.Config) store.Store {
	return mapstore.New()
}

// RegisterObserver registers an observer that will be notified
// if a zettel was found to be changed.
func (mgr *Manager) RegisterObserver(f box.UpdateFunc) {
	if f != nil {
		mgr.mxObserver.Lock()
		mgr.observers = append(mgr.observers, f)
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	case box.OnReady:
		return
	case box.OnReload:
		mgr.idxAr.Reset()
	case box.OnZettel:
		mgr.idxAr.EnqueueZettel(zid)
	default:
		mgr.mgrLog.Warn().Uint("reason", uint64(reason)).Zid(zid).Msg("Unknown notification reason")
		return
	}
	select {
	case mgr.idxReady <- struct{}{}:
	default:
	}
}







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	case box.OnReady:
		return
	case box.OnReload:
		mgr.idxAr.Reset()
	case box.OnZettel:
		mgr.idxAr.EnqueueZettel(zid)
	default:
		mgr.mgrLog.Error().Uint("reason", uint64(reason)).Zid(zid).Msg("Unknown notification reason")
		return
	}
	select {
	case mgr.idxReady <- struct{}{}:
	default:
	}
}
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func (mgr *Manager) waitBoxesAreStarted() {
	const waitTime = 10 * time.Millisecond
	const waitLoop = int(1 * time.Second / waitTime)
	for i := 1; !mgr.allBoxesStarted(); i++ {
		if i%waitLoop == 0 {
			if time.Duration(i)*waitTime > time.Minute {
				mgr.mgrLog.Warn().Msg("Waiting for more than one minute to start")
			} else {
				mgr.mgrLog.Trace().Msg("Wait for boxes to start")
			}
		}
		time.Sleep(waitTime)
	}
}







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func (mgr *Manager) waitBoxesAreStarted() {
	const waitTime = 10 * time.Millisecond
	const waitLoop = int(1 * time.Second / waitTime)
	for i := 1; !mgr.allBoxesStarted(); i++ {
		if i%waitLoop == 0 {
			if time.Duration(i)*waitTime > time.Minute {
				mgr.mgrLog.Info().Msg("Waiting for more than one minute to start")
			} else {
				mgr.mgrLog.Trace().Msg("Wait for boxes to start")
			}
		}
		time.Sleep(waitTime)
	}
}
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// ReIndex data of the given zettel.
func (mgr *Manager) ReIndex(_ context.Context, zid id.Zid) error {
	mgr.mgrLog.Debug().Msg("ReIndex")
	if mgr.State() != box.StartStateStarted {
		return box.ErrStopped
	}
	mgr.infos <- box.UpdateInfo{Reason: box.OnReload, Zid: zid}
	return nil
}

// ReadStats populates st with box statistics.
func (mgr *Manager) ReadStats(st *box.Stats) {
	mgr.mgrLog.Debug().Msg("ReadStats")
	mgr.mgrMx.RLock()







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// ReIndex data of the given zettel.
func (mgr *Manager) ReIndex(_ context.Context, zid id.Zid) error {
	mgr.mgrLog.Debug().Msg("ReIndex")
	if mgr.State() != box.StartStateStarted {
		return box.ErrStopped
	}
	mgr.infos <- box.UpdateInfo{Reason: box.OnZettel, Zid: zid}
	return nil
}

// ReadStats populates st with box statistics.
func (mgr *Manager) ReadStats(st *box.Stats) {
	mgr.mgrLog.Debug().Msg("ReadStats")
	mgr.mgrMx.RLock()

Added box/manager/mapstore/mapstore.go.



























































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

// Package mapstore stored the index in main memory via a Go map.
package mapstore

import (
	"context"
	"fmt"
	"io"
	"sort"
	"strings"
	"sync"

	"t73f.de/r/zsc/api"
	"t73f.de/r/zsc/maps"
	"zettelstore.de/z/box"
	"zettelstore.de/z/box/manager/store"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

type zettelData struct {
	meta      *meta.Meta // a local copy of the metadata, without computed keys
	dead      id.Slice   // list of dead references in this zettel
	forward   id.Slice   // list of forward references in this zettel
	backward  id.Slice   // list of zettel that reference with zettel
	otherRefs map[string]bidiRefs
	words     []string // list of words of this zettel
	urls      []string // list of urls of this zettel
}

type bidiRefs struct {
	forward  id.Slice
	backward id.Slice
}

type stringRefs map[string]id.Slice

type memStore struct {
	mx     sync.RWMutex
	intern map[string]string // map to intern strings
	idx    map[id.Zid]*zettelData
	dead   map[id.Zid]id.Slice // map dead refs where they occur
	words  stringRefs
	urls   stringRefs

	// Stats
	mxStats sync.Mutex
	updates uint64
}

// New returns a new memory-based index store.
func New() store.Store {
	return &memStore{
		intern: make(map[string]string, 1024),
		idx:    make(map[id.Zid]*zettelData),
		dead:   make(map[id.Zid]id.Slice),
		words:  make(stringRefs),
		urls:   make(stringRefs),
	}
}

func (ms *memStore) GetMeta(_ context.Context, zid id.Zid) (*meta.Meta, error) {
	ms.mx.RLock()
	defer ms.mx.RUnlock()
	if zi, found := ms.idx[zid]; found && zi.meta != nil {
		// zi.meta is nil, if zettel was referenced, but is not indexed yet.
		return zi.meta.Clone(), nil
	}
	return nil, box.ErrZettelNotFound{Zid: zid}
}

func (ms *memStore) Enrich(_ context.Context, m *meta.Meta) {
	if ms.doEnrich(m) {
		ms.mxStats.Lock()
		ms.updates++
		ms.mxStats.Unlock()
	}
}

func (ms *memStore) doEnrich(m *meta.Meta) bool {
	ms.mx.RLock()
	defer ms.mx.RUnlock()
	zi, ok := ms.idx[m.Zid]
	if !ok {
		return false
	}
	var updated bool
	if len(zi.dead) > 0 {
		m.Set(api.KeyDead, zi.dead.String())
		updated = true
	}
	back := removeOtherMetaRefs(m, zi.backward.Clone())
	if len(zi.backward) > 0 {
		m.Set(api.KeyBackward, zi.backward.String())
		updated = true
	}
	if len(zi.forward) > 0 {
		m.Set(api.KeyForward, zi.forward.String())
		back = remRefs(back, zi.forward)
		updated = true
	}
	for k, refs := range zi.otherRefs {
		if len(refs.backward) > 0 {
			m.Set(k, refs.backward.String())
			back = remRefs(back, refs.backward)
			updated = true
		}
	}
	if len(back) > 0 {
		m.Set(api.KeyBack, back.String())
		updated = true
	}
	return updated
}

// SearchEqual returns all zettel that contains the given exact word.
// The word must be normalized through Unicode NKFD, trimmed and not empty.
func (ms *memStore) SearchEqual(word string) id.Set {
	ms.mx.RLock()
	defer ms.mx.RUnlock()
	result := id.NewSet()
	if refs, ok := ms.words[word]; ok {
		result.CopySlice(refs)
	}
	if refs, ok := ms.urls[word]; ok {
		result.CopySlice(refs)
	}
	zid, err := id.Parse(word)
	if err != nil {
		return result
	}
	zi, ok := ms.idx[zid]
	if !ok {
		return result
	}

	addBackwardZids(result, zid, zi)
	return result
}

// SearchPrefix returns all zettel that have a word with the given prefix.
// The prefix must be normalized through Unicode NKFD, trimmed and not empty.
func (ms *memStore) SearchPrefix(prefix string) id.Set {
	ms.mx.RLock()
	defer ms.mx.RUnlock()
	result := ms.selectWithPred(prefix, strings.HasPrefix)
	l := len(prefix)
	if l > 14 {
		return result
	}
	maxZid, err := id.Parse(prefix + "99999999999999"[:14-l])
	if err != nil {
		return result
	}
	var minZid id.Zid
	if l < 14 && prefix == "0000000000000"[:l] {
		minZid = id.Zid(1)
	} else {
		minZid, err = id.Parse(prefix + "00000000000000"[:14-l])
		if err != nil {
			return result
		}
	}
	for zid, zi := range ms.idx {
		if minZid <= zid && zid <= maxZid {
			addBackwardZids(result, zid, zi)
		}
	}
	return result
}

// SearchSuffix returns all zettel that have a word with the given suffix.
// The suffix must be normalized through Unicode NKFD, trimmed and not empty.
func (ms *memStore) SearchSuffix(suffix string) id.Set {
	ms.mx.RLock()
	defer ms.mx.RUnlock()
	result := ms.selectWithPred(suffix, strings.HasSuffix)
	l := len(suffix)
	if l > 14 {
		return result
	}
	val, err := id.ParseUint(suffix)
	if err != nil {
		return result
	}
	modulo := uint64(1)
	for range l {
		modulo *= 10
	}
	for zid, zi := range ms.idx {
		if uint64(zid)%modulo == val {
			addBackwardZids(result, zid, zi)
		}
	}
	return result
}

// SearchContains returns all zettel that contains the given string.
// The string must be normalized through Unicode NKFD, trimmed and not empty.
func (ms *memStore) SearchContains(s string) id.Set {
	ms.mx.RLock()
	defer ms.mx.RUnlock()
	result := ms.selectWithPred(s, strings.Contains)
	if len(s) > 14 {
		return result
	}
	if _, err := id.ParseUint(s); err != nil {
		return result
	}
	for zid, zi := range ms.idx {
		if strings.Contains(zid.String(), s) {
			addBackwardZids(result, zid, zi)
		}
	}
	return result
}

func (ms *memStore) selectWithPred(s string, pred func(string, string) bool) id.Set {
	// Must only be called if ms.mx is read-locked!
	result := id.NewSet()
	for word, refs := range ms.words {
		if !pred(word, s) {
			continue
		}
		result.CopySlice(refs)
	}
	for u, refs := range ms.urls {
		if !pred(u, s) {
			continue
		}
		result.CopySlice(refs)
	}
	return result
}

func addBackwardZids(result id.Set, zid id.Zid, zi *zettelData) {
	// Must only be called if ms.mx is read-locked!
	result.Add(zid)
	result.CopySlice(zi.backward)
	for _, mref := range zi.otherRefs {
		result.CopySlice(mref.backward)
	}
}

func removeOtherMetaRefs(m *meta.Meta, back id.Slice) id.Slice {
	for _, p := range m.PairsRest() {
		switch meta.Type(p.Key) {
		case meta.TypeID:
			if zid, err := id.Parse(p.Value); err == nil {
				back = remRef(back, zid)
			}
		case meta.TypeIDSet:
			for _, val := range meta.ListFromValue(p.Value) {
				if zid, err := id.Parse(val); err == nil {
					back = remRef(back, zid)
				}
			}
		}
	}
	return back
}

func (ms *memStore) UpdateReferences(_ context.Context, zidx *store.ZettelIndex) id.Set {
	ms.mx.Lock()
	defer ms.mx.Unlock()
	m := ms.makeMeta(zidx)
	zi, ziExist := ms.idx[zidx.Zid]
	if !ziExist || zi == nil {
		zi = &zettelData{}
		ziExist = false
	}

	// Is this zettel an old dead reference mentioned in other zettel?
	var toCheck id.Set
	if refs, ok := ms.dead[zidx.Zid]; ok {
		// These must be checked later again
		toCheck = id.NewSet(refs...)
		delete(ms.dead, zidx.Zid)
	}

	zi.meta = m
	ms.updateDeadReferences(zidx, zi)
	ids := ms.updateForwardBackwardReferences(zidx, zi)
	toCheck = toCheck.Copy(ids)
	ids = ms.updateMetadataReferences(zidx, zi)
	toCheck = toCheck.Copy(ids)
	zi.words = updateStrings(zidx.Zid, ms.words, zi.words, zidx.GetWords())
	zi.urls = updateStrings(zidx.Zid, ms.urls, zi.urls, zidx.GetUrls())

	// Check if zi must be inserted into ms.idx
	if !ziExist {
		ms.idx[zidx.Zid] = zi
	}

	return toCheck
}

var internableKeys = map[string]bool{
	api.KeyRole:      true,
	api.KeySyntax:    true,
	api.KeyFolgeRole: true,
	api.KeyLang:      true,
	api.KeyReadOnly:  true,
}

func isInternableValue(key string) bool {
	if internableKeys[key] {
		return true
	}
	return strings.HasSuffix(key, meta.SuffixKeyRole)
}

func (ms *memStore) internString(s string) string {
	if is, found := ms.intern[s]; found {
		return is
	}
	ms.intern[s] = s
	return s
}

func (ms *memStore) makeMeta(zidx *store.ZettelIndex) *meta.Meta {
	origM := zidx.GetMeta()
	copyM := meta.New(origM.Zid)
	for _, p := range origM.Pairs() {
		key := ms.internString(p.Key)
		if isInternableValue(key) {
			copyM.Set(key, ms.internString(p.Value))
		} else if key == api.KeyBoxNumber || !meta.IsComputed(key) {
			copyM.Set(key, p.Value)
		}
	}
	return copyM
}

func (ms *memStore) updateDeadReferences(zidx *store.ZettelIndex, zi *zettelData) {
	// Must only be called if ms.mx is write-locked!
	drefs := zidx.GetDeadRefs()
	newRefs, remRefs := refsDiff(drefs, zi.dead)
	zi.dead = drefs
	for _, ref := range remRefs {
		ms.dead[ref] = remRef(ms.dead[ref], zidx.Zid)
	}
	for _, ref := range newRefs {
		ms.dead[ref] = addRef(ms.dead[ref], zidx.Zid)
	}
}

func (ms *memStore) updateForwardBackwardReferences(zidx *store.ZettelIndex, zi *zettelData) id.Set {
	// Must only be called if ms.mx is write-locked!
	brefs := zidx.GetBackRefs()
	newRefs, remRefs := refsDiff(brefs, zi.forward)
	zi.forward = brefs

	var toCheck id.Set
	for _, ref := range remRefs {
		bzi := ms.getOrCreateEntry(ref)
		bzi.backward = remRef(bzi.backward, zidx.Zid)
		if bzi.meta == nil {
			toCheck = toCheck.Add(ref)
		}
	}
	for _, ref := range newRefs {
		bzi := ms.getOrCreateEntry(ref)
		bzi.backward = addRef(bzi.backward, zidx.Zid)
		if bzi.meta == nil {
			toCheck = toCheck.Add(ref)
		}
	}
	return toCheck
}

func (ms *memStore) updateMetadataReferences(zidx *store.ZettelIndex, zi *zettelData) id.Set {
	// Must only be called if ms.mx is write-locked!
	inverseRefs := zidx.GetInverseRefs()
	for key, mr := range zi.otherRefs {
		if _, ok := inverseRefs[key]; ok {
			continue
		}
		ms.removeInverseMeta(zidx.Zid, key, mr.forward)
	}
	if zi.otherRefs == nil {
		zi.otherRefs = make(map[string]bidiRefs)
	}
	var toCheck id.Set
	for key, mrefs := range inverseRefs {
		mr := zi.otherRefs[key]
		newRefs, remRefs := refsDiff(mrefs, mr.forward)
		mr.forward = mrefs
		zi.otherRefs[key] = mr

		for _, ref := range newRefs {
			bzi := ms.getOrCreateEntry(ref)
			if bzi.otherRefs == nil {
				bzi.otherRefs = make(map[string]bidiRefs)
			}
			bmr := bzi.otherRefs[key]
			bmr.backward = addRef(bmr.backward, zidx.Zid)
			bzi.otherRefs[key] = bmr
			if bzi.meta == nil {
				toCheck = toCheck.Add(ref)
			}
		}
		ms.removeInverseMeta(zidx.Zid, key, remRefs)
	}
	return toCheck
}

func updateStrings(zid id.Zid, srefs stringRefs, prev []string, next store.WordSet) []string {
	newWords, removeWords := next.Diff(prev)
	for _, word := range newWords {
		if refs, ok := srefs[word]; ok {
			srefs[word] = addRef(refs, zid)
			continue
		}
		srefs[word] = id.Slice{zid}
	}
	for _, word := range removeWords {
		refs, ok := srefs[word]
		if !ok {
			continue
		}
		refs2 := remRef(refs, zid)
		if len(refs2) == 0 {
			delete(srefs, word)
			continue
		}
		srefs[word] = refs2
	}
	return next.Words()
}

func (ms *memStore) getOrCreateEntry(zid id.Zid) *zettelData {
	// Must only be called if ms.mx is write-locked!
	if zi, ok := ms.idx[zid]; ok {
		return zi
	}
	zi := &zettelData{}
	ms.idx[zid] = zi
	return zi
}

func (ms *memStore) RenameZettel(_ context.Context, curZid, newZid id.Zid) id.Set {
	ms.mx.Lock()
	defer ms.mx.Unlock()

	curZi, curFound := ms.idx[curZid]
	_, newFound := ms.idx[newZid]
	if !curFound || newFound {
		return nil
	}
	newZi := &zettelData{
		meta:      copyMeta(curZi.meta, newZid),
		dead:      ms.copyDeadReferences(curZi.dead),
		forward:   ms.copyForward(curZi.forward, newZid),
		backward:  nil, // will be done through tocheck
		otherRefs: nil, // TODO: check if this will be done through toCheck
		words:     copyStrings(ms.words, curZi.words, newZid),
		urls:      copyStrings(ms.urls, curZi.urls, newZid),
	}

	ms.idx[newZid] = newZi
	toCheck := ms.doDeleteZettel(curZid)
	toCheck = toCheck.CopySlice(ms.dead[newZid])
	delete(ms.dead, newZid)
	toCheck = toCheck.Add(newZid) // should update otherRefs
	return toCheck
}
func copyMeta(m *meta.Meta, newZid id.Zid) *meta.Meta {
	result := m.Clone()
	result.Zid = newZid
	return result
}
func (ms *memStore) copyDeadReferences(curDead id.Slice) id.Slice {
	// Must only be called if ms.mx is write-locked!
	if l := len(curDead); l > 0 {
		result := make(id.Slice, l)
		for i, ref := range curDead {
			result[i] = ref
			ms.dead[ref] = addRef(ms.dead[ref], ref)
		}
		return result
	}
	return nil
}
func (ms *memStore) copyForward(curForward id.Slice, newZid id.Zid) id.Slice {
	// Must only be called if ms.mx is write-locked!
	if l := len(curForward); l > 0 {
		result := make(id.Slice, l)
		for i, ref := range curForward {
			result[i] = ref
			if fzi, found := ms.idx[ref]; found {
				fzi.backward = addRef(fzi.backward, newZid)
			}
		}
		return result
	}
	return nil
}
func copyStrings(msStringMap stringRefs, curStrings []string, newZid id.Zid) []string {
	// Must only be called if ms.mx is write-locked!
	if l := len(curStrings); l > 0 {
		result := make([]string, l)
		for i, s := range curStrings {
			result[i] = s
			msStringMap[s] = addRef(msStringMap[s], newZid)
		}
		return result
	}
	return nil
}

func (ms *memStore) DeleteZettel(_ context.Context, zid id.Zid) id.Set {
	ms.mx.Lock()
	defer ms.mx.Unlock()
	return ms.doDeleteZettel(zid)
}

func (ms *memStore) doDeleteZettel(zid id.Zid) id.Set {
	// Must only be called if ms.mx is write-locked!
	zi, ok := ms.idx[zid]
	if !ok {
		return nil
	}

	ms.deleteDeadSources(zid, zi)
	toCheck := ms.deleteForwardBackward(zid, zi)
	for key, mrefs := range zi.otherRefs {
		ms.removeInverseMeta(zid, key, mrefs.forward)
	}
	deleteStrings(ms.words, zi.words, zid)
	deleteStrings(ms.urls, zi.urls, zid)
	delete(ms.idx, zid)
	return toCheck
}

func (ms *memStore) deleteDeadSources(zid id.Zid, zi *zettelData) {
	// Must only be called if ms.mx is write-locked!
	for _, ref := range zi.dead {
		if drefs, ok := ms.dead[ref]; ok {
			drefs = remRef(drefs, zid)
			if len(drefs) > 0 {
				ms.dead[ref] = drefs
			} else {
				delete(ms.dead, ref)
			}
		}
	}
}

func (ms *memStore) deleteForwardBackward(zid id.Zid, zi *zettelData) id.Set {
	// Must only be called if ms.mx is write-locked!
	for _, ref := range zi.forward {
		if fzi, ok := ms.idx[ref]; ok {
			fzi.backward = remRef(fzi.backward, zid)
		}
	}
	var toCheck id.Set
	for _, ref := range zi.backward {
		if bzi, ok := ms.idx[ref]; ok {
			bzi.forward = remRef(bzi.forward, zid)
			toCheck = toCheck.Add(ref)
		}
	}
	return toCheck
}

func (ms *memStore) removeInverseMeta(zid id.Zid, key string, forward id.Slice) {
	// Must only be called if ms.mx is write-locked!
	for _, ref := range forward {
		bzi, ok := ms.idx[ref]
		if !ok || bzi.otherRefs == nil {
			continue
		}
		bmr, ok := bzi.otherRefs[key]
		if !ok {
			continue
		}
		bmr.backward = remRef(bmr.backward, zid)
		if len(bmr.backward) > 0 || len(bmr.forward) > 0 {
			bzi.otherRefs[key] = bmr
		} else {
			delete(bzi.otherRefs, key)
			if len(bzi.otherRefs) == 0 {
				bzi.otherRefs = nil
			}
		}
	}
}

func deleteStrings(msStringMap stringRefs, curStrings []string, zid id.Zid) {
	// Must only be called if ms.mx is write-locked!
	for _, word := range curStrings {
		refs, ok := msStringMap[word]
		if !ok {
			continue
		}
		refs2 := remRef(refs, zid)
		if len(refs2) == 0 {
			delete(msStringMap, word)
			continue
		}
		msStringMap[word] = refs2
	}
}

func (ms *memStore) ReadStats(st *store.Stats) {
	ms.mx.RLock()
	st.Zettel = len(ms.idx)
	st.Words = uint64(len(ms.words))
	st.Urls = uint64(len(ms.urls))
	ms.mx.RUnlock()
	ms.mxStats.Lock()
	st.Updates = ms.updates
	ms.mxStats.Unlock()
}

func (ms *memStore) Dump(w io.Writer) {
	ms.mx.RLock()
	defer ms.mx.RUnlock()

	io.WriteString(w, "=== Dump\n")
	ms.dumpIndex(w)
	ms.dumpDead(w)
	dumpStringRefs(w, "Words", "", "", ms.words)
	dumpStringRefs(w, "URLs", "[[", "]]", ms.urls)
}

func (ms *memStore) dumpIndex(w io.Writer) {
	if len(ms.idx) == 0 {
		return
	}
	io.WriteString(w, "==== Zettel Index\n")
	zids := make(id.Slice, 0, len(ms.idx))
	for id := range ms.idx {
		zids = append(zids, id)
	}
	zids.Sort()
	for _, id := range zids {
		fmt.Fprintln(w, "=====", id)
		zi := ms.idx[id]
		if len(zi.dead) > 0 {
			fmt.Fprintln(w, "* Dead:", zi.dead)
		}
		dumpZids(w, "* Forward:", zi.forward)
		dumpZids(w, "* Backward:", zi.backward)
		for k, fb := range zi.otherRefs {
			fmt.Fprintln(w, "* Meta", k)
			dumpZids(w, "** Forward:", fb.forward)
			dumpZids(w, "** Backward:", fb.backward)
		}
		dumpStrings(w, "* Words", "", "", zi.words)
		dumpStrings(w, "* URLs", "[[", "]]", zi.urls)
	}
}

func (ms *memStore) dumpDead(w io.Writer) {
	if len(ms.dead) == 0 {
		return
	}
	fmt.Fprintf(w, "==== Dead References\n")
	zids := make(id.Slice, 0, len(ms.dead))
	for id := range ms.dead {
		zids = append(zids, id)
	}
	zids.Sort()
	for _, id := range zids {
		fmt.Fprintln(w, ";", id)
		fmt.Fprintln(w, ":", ms.dead[id])
	}
}

func dumpZids(w io.Writer, prefix string, zids id.Slice) {
	if len(zids) > 0 {
		io.WriteString(w, prefix)
		for _, zid := range zids {
			io.WriteString(w, " ")
			w.Write(zid.Bytes())
		}
		fmt.Fprintln(w)
	}
}

func dumpStrings(w io.Writer, title, preString, postString string, slice []string) {
	if len(slice) > 0 {
		sl := make([]string, len(slice))
		copy(sl, slice)
		sort.Strings(sl)
		fmt.Fprintln(w, title)
		for _, s := range sl {
			fmt.Fprintf(w, "** %s%s%s\n", preString, s, postString)
		}
	}

}

func dumpStringRefs(w io.Writer, title, preString, postString string, srefs stringRefs) {
	if len(srefs) == 0 {
		return
	}
	fmt.Fprintln(w, "====", title)
	for _, s := range maps.Keys(srefs) {
		fmt.Fprintf(w, "; %s%s%s\n", preString, s, postString)
		fmt.Fprintln(w, ":", srefs[s])
	}
}

Added box/manager/mapstore/refs.go.



















































































































































































































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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package mapstore

import (
	"slices"

	"zettelstore.de/z/zettel/id"
)

func refsDiff(refsN, refsO id.Slice) (newRefs, remRefs id.Slice) {
	npos, opos := 0, 0
	for npos < len(refsN) && opos < len(refsO) {
		rn, ro := refsN[npos], refsO[opos]
		if rn == ro {
			npos++
			opos++
			continue
		}
		if rn < ro {
			newRefs = append(newRefs, rn)
			npos++
			continue
		}
		remRefs = append(remRefs, ro)
		opos++
	}
	if npos < len(refsN) {
		newRefs = append(newRefs, refsN[npos:]...)
	}
	if opos < len(refsO) {
		remRefs = append(remRefs, refsO[opos:]...)
	}
	return newRefs, remRefs
}

func addRef(refs id.Slice, ref id.Zid) id.Slice {
	hi := len(refs)
	for lo := 0; lo < hi; {
		m := lo + (hi-lo)/2
		if r := refs[m]; r == ref {
			return refs
		} else if r < ref {
			lo = m + 1
		} else {
			hi = m
		}
	}
	refs = slices.Insert(refs, hi, ref)
	return refs
}

func remRefs(refs, rem id.Slice) id.Slice {
	if len(refs) == 0 || len(rem) == 0 {
		return refs
	}
	result := make(id.Slice, 0, len(refs))
	rpos, dpos := 0, 0
	for rpos < len(refs) && dpos < len(rem) {
		rr, dr := refs[rpos], rem[dpos]
		if rr < dr {
			result = append(result, rr)
			rpos++
			continue
		}
		if dr < rr {
			dpos++
			continue
		}
		rpos++
		dpos++
	}
	if rpos < len(refs) {
		result = append(result, refs[rpos:]...)
	}
	return result
}

func remRef(refs id.Slice, ref id.Zid) id.Slice {
	hi := len(refs)
	for lo := 0; lo < hi; {
		m := lo + (hi-lo)/2
		if r := refs[m]; r == ref {
			copy(refs[m:], refs[m+1:])
			refs = refs[:len(refs)-1]
			return refs
		} else if r < ref {
			lo = m + 1
		} else {
			hi = m
		}
	}
	return refs
}

Added box/manager/mapstore/refs_test.go.

























































































































































































































































































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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package mapstore

import (
	"testing"

	"zettelstore.de/z/zettel/id"
)

func assertRefs(t *testing.T, i int, got, exp id.Slice) {
	t.Helper()
	if got == nil && exp != nil {
		t.Errorf("%d: got nil, but expected %v", i, exp)
		return
	}
	if got != nil && exp == nil {
		t.Errorf("%d: expected nil, but got %v", i, got)
		return
	}
	if len(got) != len(exp) {
		t.Errorf("%d: expected len(%v)==%d, but got len(%v)==%d", i, exp, len(exp), got, len(got))
		return
	}
	for p, n := range exp {
		if got := got[p]; got != id.Zid(n) {
			t.Errorf("%d: pos %d: expected %d, but got %d", i, p, n, got)
		}
	}
}

func TestRefsDiff(t *testing.T) {
	t.Parallel()
	testcases := []struct {
		in1, in2   id.Slice
		exp1, exp2 id.Slice
	}{
		{nil, nil, nil, nil},
		{id.Slice{1}, nil, id.Slice{1}, nil},
		{nil, id.Slice{1}, nil, id.Slice{1}},
		{id.Slice{1}, id.Slice{1}, nil, nil},
		{id.Slice{1, 2}, id.Slice{1}, id.Slice{2}, nil},
		{id.Slice{1, 2}, id.Slice{1, 3}, id.Slice{2}, id.Slice{3}},
		{id.Slice{1, 4}, id.Slice{1, 3}, id.Slice{4}, id.Slice{3}},
	}
	for i, tc := range testcases {
		got1, got2 := refsDiff(tc.in1, tc.in2)
		assertRefs(t, i, got1, tc.exp1)
		assertRefs(t, i, got2, tc.exp2)
	}
}

func TestAddRef(t *testing.T) {
	t.Parallel()
	testcases := []struct {
		ref id.Slice
		zid uint
		exp id.Slice
	}{
		{nil, 5, id.Slice{5}},
		{id.Slice{1}, 5, id.Slice{1, 5}},
		{id.Slice{10}, 5, id.Slice{5, 10}},
		{id.Slice{5}, 5, id.Slice{5}},
		{id.Slice{1, 10}, 5, id.Slice{1, 5, 10}},
		{id.Slice{1, 5, 10}, 5, id.Slice{1, 5, 10}},
	}
	for i, tc := range testcases {
		got := addRef(tc.ref, id.Zid(tc.zid))
		assertRefs(t, i, got, tc.exp)
	}
}

func TestRemRefs(t *testing.T) {
	t.Parallel()
	testcases := []struct {
		in1, in2 id.Slice
		exp      id.Slice
	}{
		{nil, nil, nil},
		{nil, id.Slice{}, nil},
		{id.Slice{}, nil, id.Slice{}},
		{id.Slice{}, id.Slice{}, id.Slice{}},
		{id.Slice{1}, id.Slice{5}, id.Slice{1}},
		{id.Slice{10}, id.Slice{5}, id.Slice{10}},
		{id.Slice{1, 5}, id.Slice{5}, id.Slice{1}},
		{id.Slice{5, 10}, id.Slice{5}, id.Slice{10}},
		{id.Slice{1, 10}, id.Slice{5}, id.Slice{1, 10}},
		{id.Slice{1}, id.Slice{2, 5}, id.Slice{1}},
		{id.Slice{10}, id.Slice{2, 5}, id.Slice{10}},
		{id.Slice{1, 5}, id.Slice{2, 5}, id.Slice{1}},
		{id.Slice{5, 10}, id.Slice{2, 5}, id.Slice{10}},
		{id.Slice{1, 2, 5}, id.Slice{2, 5}, id.Slice{1}},
		{id.Slice{2, 5, 10}, id.Slice{2, 5}, id.Slice{10}},
		{id.Slice{1, 10}, id.Slice{2, 5}, id.Slice{1, 10}},
		{id.Slice{1}, id.Slice{5, 9}, id.Slice{1}},
		{id.Slice{10}, id.Slice{5, 9}, id.Slice{10}},
		{id.Slice{1, 5}, id.Slice{5, 9}, id.Slice{1}},
		{id.Slice{5, 10}, id.Slice{5, 9}, id.Slice{10}},
		{id.Slice{1, 5, 9}, id.Slice{5, 9}, id.Slice{1}},
		{id.Slice{5, 9, 10}, id.Slice{5, 9}, id.Slice{10}},
		{id.Slice{1, 10}, id.Slice{5, 9}, id.Slice{1, 10}},
	}
	for i, tc := range testcases {
		got := remRefs(tc.in1, tc.in2)
		assertRefs(t, i, got, tc.exp)
	}
}

func TestRemRef(t *testing.T) {
	t.Parallel()
	testcases := []struct {
		ref id.Slice
		zid uint
		exp id.Slice
	}{
		{nil, 5, nil},
		{id.Slice{}, 5, id.Slice{}},
		{id.Slice{5}, 5, id.Slice{}},
		{id.Slice{1}, 5, id.Slice{1}},
		{id.Slice{10}, 5, id.Slice{10}},
		{id.Slice{1, 5}, 5, id.Slice{1}},
		{id.Slice{5, 10}, 5, id.Slice{10}},
		{id.Slice{1, 5, 10}, 5, id.Slice{1, 10}},
	}
	for i, tc := range testcases {
		got := remRef(tc.ref, id.Zid(tc.zid))
		assertRefs(t, i, got, tc.exp)
	}
}

Deleted box/manager/memstore/memstore.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//-----------------------------------------------------------------------------

// Package memstore stored the index in main memory.
package memstore

import (
	"context"
	"fmt"
	"io"
	"sort"
	"strings"
	"sync"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/client.fossil/maps"
	"zettelstore.de/z/box"
	"zettelstore.de/z/box/manager/store"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

type bidiRefs struct {
	forward  id.Slice
	backward id.Slice
}

type zettelData struct {
	meta      *meta.Meta // a local copy of the metadata, without computed keys
	dead      id.Slice   // list of dead references in this zettel
	forward   id.Slice   // list of forward references in this zettel
	backward  id.Slice   // list of zettel that reference with zettel
	otherRefs map[string]bidiRefs
	words     []string // list of words of this zettel
	urls      []string // list of urls of this zettel
}

type stringRefs map[string]id.Slice

type memStore struct {
	mx     sync.RWMutex
	intern map[string]string // map to intern strings
	idx    map[id.Zid]*zettelData
	dead   map[id.Zid]id.Slice // map dead refs where they occur
	words  stringRefs
	urls   stringRefs

	// Stats
	mxStats sync.Mutex
	updates uint64
}

// New returns a new memory-based index store.
func New() store.Store {
	return &memStore{
		intern: make(map[string]string, 1024),
		idx:    make(map[id.Zid]*zettelData),
		dead:   make(map[id.Zid]id.Slice),
		words:  make(stringRefs),
		urls:   make(stringRefs),
	}
}

func (ms *memStore) GetMeta(_ context.Context, zid id.Zid) (*meta.Meta, error) {
	ms.mx.RLock()
	defer ms.mx.RUnlock()
	if zi, found := ms.idx[zid]; found && zi.meta != nil {
		// zi.meta is nil, if zettel was referenced, but is not indexed yet.
		return zi.meta.Clone(), nil
	}
	return nil, box.ErrZettelNotFound{Zid: zid}
}

func (ms *memStore) Enrich(_ context.Context, m *meta.Meta) {
	if ms.doEnrich(m) {
		ms.mxStats.Lock()
		ms.updates++
		ms.mxStats.Unlock()
	}
}

func (ms *memStore) doEnrich(m *meta.Meta) bool {
	ms.mx.RLock()
	defer ms.mx.RUnlock()
	zi, ok := ms.idx[m.Zid]
	if !ok {
		return false
	}
	var updated bool
	if len(zi.dead) > 0 {
		m.Set(api.KeyDead, zi.dead.String())
		updated = true
	}
	back := removeOtherMetaRefs(m, zi.backward.Clone())
	if len(zi.backward) > 0 {
		m.Set(api.KeyBackward, zi.backward.String())
		updated = true
	}
	if len(zi.forward) > 0 {
		m.Set(api.KeyForward, zi.forward.String())
		back = remRefs(back, zi.forward)
		updated = true
	}
	for k, refs := range zi.otherRefs {
		if len(refs.backward) > 0 {
			m.Set(k, refs.backward.String())
			back = remRefs(back, refs.backward)
			updated = true
		}
	}
	if len(back) > 0 {
		m.Set(api.KeyBack, back.String())
		updated = true
	}
	return updated
}

// SearchEqual returns all zettel that contains the given exact word.
// The word must be normalized through Unicode NKFD, trimmed and not empty.
func (ms *memStore) SearchEqual(word string) id.Set {
	ms.mx.RLock()
	defer ms.mx.RUnlock()
	result := id.NewSet()
	if refs, ok := ms.words[word]; ok {
		result.CopySlice(refs)
	}
	if refs, ok := ms.urls[word]; ok {
		result.CopySlice(refs)
	}
	zid, err := id.Parse(word)
	if err != nil {
		return result
	}
	zi, ok := ms.idx[zid]
	if !ok {
		return result
	}

	addBackwardZids(result, zid, zi)
	return result
}

// SearchPrefix returns all zettel that have a word with the given prefix.
// The prefix must be normalized through Unicode NKFD, trimmed and not empty.
func (ms *memStore) SearchPrefix(prefix string) id.Set {
	ms.mx.RLock()
	defer ms.mx.RUnlock()
	result := ms.selectWithPred(prefix, strings.HasPrefix)
	l := len(prefix)
	if l > 14 {
		return result
	}
	maxZid, err := id.Parse(prefix + "99999999999999"[:14-l])
	if err != nil {
		return result
	}
	var minZid id.Zid
	if l < 14 && prefix == "0000000000000"[:l] {
		minZid = id.Zid(1)
	} else {
		minZid, err = id.Parse(prefix + "00000000000000"[:14-l])
		if err != nil {
			return result
		}
	}
	for zid, zi := range ms.idx {
		if minZid <= zid && zid <= maxZid {
			addBackwardZids(result, zid, zi)
		}
	}
	return result
}

// SearchSuffix returns all zettel that have a word with the given suffix.
// The suffix must be normalized through Unicode NKFD, trimmed and not empty.
func (ms *memStore) SearchSuffix(suffix string) id.Set {
	ms.mx.RLock()
	defer ms.mx.RUnlock()
	result := ms.selectWithPred(suffix, strings.HasSuffix)
	l := len(suffix)
	if l > 14 {
		return result
	}
	val, err := id.ParseUint(suffix)
	if err != nil {
		return result
	}
	modulo := uint64(1)
	for i := 0; i < l; i++ {
		modulo *= 10
	}
	for zid, zi := range ms.idx {
		if uint64(zid)%modulo == val {
			addBackwardZids(result, zid, zi)
		}
	}
	return result
}

// SearchContains returns all zettel that contains the given string.
// The string must be normalized through Unicode NKFD, trimmed and not empty.
func (ms *memStore) SearchContains(s string) id.Set {
	ms.mx.RLock()
	defer ms.mx.RUnlock()
	result := ms.selectWithPred(s, strings.Contains)
	if len(s) > 14 {
		return result
	}
	if _, err := id.ParseUint(s); err != nil {
		return result
	}
	for zid, zi := range ms.idx {
		if strings.Contains(zid.String(), s) {
			addBackwardZids(result, zid, zi)
		}
	}
	return result
}

func (ms *memStore) selectWithPred(s string, pred func(string, string) bool) id.Set {
	// Must only be called if ms.mx is read-locked!
	result := id.NewSet()
	for word, refs := range ms.words {
		if !pred(word, s) {
			continue
		}
		result.CopySlice(refs)
	}
	for u, refs := range ms.urls {
		if !pred(u, s) {
			continue
		}
		result.CopySlice(refs)
	}
	return result
}

func addBackwardZids(result id.Set, zid id.Zid, zi *zettelData) {
	// Must only be called if ms.mx is read-locked!
	result.Add(zid)
	result.CopySlice(zi.backward)
	for _, mref := range zi.otherRefs {
		result.CopySlice(mref.backward)
	}
}

func removeOtherMetaRefs(m *meta.Meta, back id.Slice) id.Slice {
	for _, p := range m.PairsRest() {
		switch meta.Type(p.Key) {
		case meta.TypeID:
			if zid, err := id.Parse(p.Value); err == nil {
				back = remRef(back, zid)
			}
		case meta.TypeIDSet:
			for _, val := range meta.ListFromValue(p.Value) {
				if zid, err := id.Parse(val); err == nil {
					back = remRef(back, zid)
				}
			}
		}
	}
	return back
}

func (ms *memStore) UpdateReferences(_ context.Context, zidx *store.ZettelIndex) id.Set {
	m := ms.makeMeta(zidx)
	ms.mx.Lock()
	defer ms.mx.Unlock()
	zi, ziExist := ms.idx[zidx.Zid]
	if !ziExist || zi == nil {
		zi = &zettelData{}
		ziExist = false
	}

	// Is this zettel an old dead reference mentioned in other zettel?
	var toCheck id.Set
	if refs, ok := ms.dead[zidx.Zid]; ok {
		// These must be checked later again
		toCheck = id.NewSet(refs...)
		delete(ms.dead, zidx.Zid)
	}

	zi.meta = m
	ms.updateDeadReferences(zidx, zi)
	ids := ms.updateForwardBackwardReferences(zidx, zi)
	toCheck = toCheck.Copy(ids)
	ids = ms.updateMetadataReferences(zidx, zi)
	toCheck = toCheck.Copy(ids)
	zi.words = updateStrings(zidx.Zid, ms.words, zi.words, zidx.GetWords())
	zi.urls = updateStrings(zidx.Zid, ms.urls, zi.urls, zidx.GetUrls())

	// Check if zi must be inserted into ms.idx
	if !ziExist {
		ms.idx[zidx.Zid] = zi
	}

	return toCheck
}

var internableKeys = map[string]bool{
	api.KeyRole:      true,
	api.KeySyntax:    true,
	api.KeyFolgeRole: true,
	api.KeyLang:      true,
	api.KeyReadOnly:  true,
}

func isInternableValue(key string) bool {
	if internableKeys[key] {
		return true
	}
	return strings.HasSuffix(key, "-role")
}

func (ms *memStore) internString(s string) string {
	if is, found := ms.intern[s]; found {
		return is
	}
	ms.intern[s] = s
	return s
}

func (ms *memStore) makeMeta(zidx *store.ZettelIndex) *meta.Meta {
	origM := zidx.GetMeta()
	copyM := meta.New(origM.Zid)
	for _, p := range origM.Pairs() {
		key := ms.internString(p.Key)
		if isInternableValue(key) {
			copyM.Set(key, ms.internString(p.Value))
		} else if key == api.KeyBoxNumber || !meta.IsComputed(key) {
			copyM.Set(key, p.Value)
		}
	}
	return copyM
}

func (ms *memStore) updateDeadReferences(zidx *store.ZettelIndex, zi *zettelData) {
	// Must only be called if ms.mx is write-locked!
	drefs := zidx.GetDeadRefs()
	newRefs, remRefs := refsDiff(drefs, zi.dead)
	zi.dead = drefs
	for _, ref := range remRefs {
		ms.dead[ref] = remRef(ms.dead[ref], zidx.Zid)
	}
	for _, ref := range newRefs {
		ms.dead[ref] = addRef(ms.dead[ref], zidx.Zid)
	}
}

func (ms *memStore) updateForwardBackwardReferences(zidx *store.ZettelIndex, zi *zettelData) id.Set {
	// Must only be called if ms.mx is write-locked!
	brefs := zidx.GetBackRefs()
	newRefs, remRefs := refsDiff(brefs, zi.forward)
	zi.forward = brefs

	var toCheck id.Set
	for _, ref := range remRefs {
		bzi := ms.getOrCreateEntry(ref)
		bzi.backward = remRef(bzi.backward, zidx.Zid)
		if bzi.meta == nil {
			toCheck = toCheck.Add(ref)
		}
	}
	for _, ref := range newRefs {
		bzi := ms.getOrCreateEntry(ref)
		bzi.backward = addRef(bzi.backward, zidx.Zid)
		if bzi.meta == nil {
			toCheck = toCheck.Add(ref)
		}
	}
	return toCheck
}

func (ms *memStore) updateMetadataReferences(zidx *store.ZettelIndex, zi *zettelData) id.Set {
	// Must only be called if ms.mx is write-locked!
	inverseRefs := zidx.GetInverseRefs()
	for key, mr := range zi.otherRefs {
		if _, ok := inverseRefs[key]; ok {
			continue
		}
		ms.removeInverseMeta(zidx.Zid, key, mr.forward)
	}
	if zi.otherRefs == nil {
		zi.otherRefs = make(map[string]bidiRefs)
	}
	var toCheck id.Set
	for key, mrefs := range inverseRefs {
		mr := zi.otherRefs[key]
		newRefs, remRefs := refsDiff(mrefs, mr.forward)
		mr.forward = mrefs
		zi.otherRefs[key] = mr

		for _, ref := range newRefs {
			bzi := ms.getOrCreateEntry(ref)
			if bzi.otherRefs == nil {
				bzi.otherRefs = make(map[string]bidiRefs)
			}
			bmr := bzi.otherRefs[key]
			bmr.backward = addRef(bmr.backward, zidx.Zid)
			bzi.otherRefs[key] = bmr
			if bzi.meta == nil {
				toCheck = toCheck.Add(ref)
			}
		}
		ms.removeInverseMeta(zidx.Zid, key, remRefs)
	}
	return toCheck
}

func updateStrings(zid id.Zid, srefs stringRefs, prev []string, next store.WordSet) []string {
	newWords, removeWords := next.Diff(prev)
	for _, word := range newWords {
		if refs, ok := srefs[word]; ok {
			srefs[word] = addRef(refs, zid)
			continue
		}
		srefs[word] = id.Slice{zid}
	}
	for _, word := range removeWords {
		refs, ok := srefs[word]
		if !ok {
			continue
		}
		refs2 := remRef(refs, zid)
		if len(refs2) == 0 {
			delete(srefs, word)
			continue
		}
		srefs[word] = refs2
	}
	return next.Words()
}

func (ms *memStore) getOrCreateEntry(zid id.Zid) *zettelData {
	// Must only be called if ms.mx is write-locked!
	if zi, ok := ms.idx[zid]; ok {
		return zi
	}
	zi := &zettelData{}
	ms.idx[zid] = zi
	return zi
}

func (ms *memStore) RenameZettel(_ context.Context, curZid, newZid id.Zid) id.Set {
	ms.mx.Lock()
	defer ms.mx.Unlock()

	curZi, curFound := ms.idx[curZid]
	_, newFound := ms.idx[newZid]
	if !curFound || newFound {
		return nil
	}
	newZi := &zettelData{
		meta:      copyMeta(curZi.meta, newZid),
		dead:      ms.copyDeadReferences(curZi.dead),
		forward:   ms.copyForward(curZi.forward, newZid),
		backward:  nil, // will be done through tocheck
		otherRefs: nil, // TODO: check if this will be done through toCheck
		words:     copyStrings(ms.words, curZi.words, newZid),
		urls:      copyStrings(ms.urls, curZi.urls, newZid),
	}

	ms.idx[newZid] = newZi
	toCheck := ms.doDeleteZettel(curZid)
	toCheck = toCheck.CopySlice(ms.dead[newZid])
	delete(ms.dead, newZid)
	toCheck = toCheck.Add(newZid) // should update otherRefs
	return toCheck
}
func copyMeta(m *meta.Meta, newZid id.Zid) *meta.Meta {
	result := m.Clone()
	result.Zid = newZid
	return result
}
func (ms *memStore) copyDeadReferences(curDead id.Slice) id.Slice {
	// Must only be called if ms.mx is write-locked!
	if l := len(curDead); l > 0 {
		result := make(id.Slice, l)
		for i, ref := range curDead {
			result[i] = ref
			ms.dead[ref] = addRef(ms.dead[ref], ref)
		}
		return result
	}
	return nil
}
func (ms *memStore) copyForward(curForward id.Slice, newZid id.Zid) id.Slice {
	// Must only be called if ms.mx is write-locked!
	if l := len(curForward); l > 0 {
		result := make(id.Slice, l)
		for i, ref := range curForward {
			result[i] = ref
			if fzi, found := ms.idx[ref]; found {
				fzi.backward = addRef(fzi.backward, newZid)
			}
		}
		return result
	}
	return nil
}
func copyStrings(msStringMap stringRefs, curStrings []string, newZid id.Zid) []string {
	// Must only be called if ms.mx is write-locked!
	if l := len(curStrings); l > 0 {
		result := make([]string, l)
		for i, s := range curStrings {
			result[i] = s
			msStringMap[s] = addRef(msStringMap[s], newZid)
		}
		return result
	}
	return nil
}

func (ms *memStore) DeleteZettel(_ context.Context, zid id.Zid) id.Set {
	ms.mx.Lock()
	defer ms.mx.Unlock()
	return ms.doDeleteZettel(zid)
}

func (ms *memStore) doDeleteZettel(zid id.Zid) id.Set {
	// Must only be called if ms.mx is write-locked!
	zi, ok := ms.idx[zid]
	if !ok {
		return nil
	}

	ms.deleteDeadSources(zid, zi)
	toCheck := ms.deleteForwardBackward(zid, zi)
	for key, mrefs := range zi.otherRefs {
		ms.removeInverseMeta(zid, key, mrefs.forward)
	}
	deleteStrings(ms.words, zi.words, zid)
	deleteStrings(ms.urls, zi.urls, zid)
	delete(ms.idx, zid)
	return toCheck
}

func (ms *memStore) deleteDeadSources(zid id.Zid, zi *zettelData) {
	// Must only be called if ms.mx is write-locked!
	for _, ref := range zi.dead {
		if drefs, ok := ms.dead[ref]; ok {
			drefs = remRef(drefs, zid)
			if len(drefs) > 0 {
				ms.dead[ref] = drefs
			} else {
				delete(ms.dead, ref)
			}
		}
	}
}

func (ms *memStore) deleteForwardBackward(zid id.Zid, zi *zettelData) id.Set {
	// Must only be called if ms.mx is write-locked!
	for _, ref := range zi.forward {
		if fzi, ok := ms.idx[ref]; ok {
			fzi.backward = remRef(fzi.backward, zid)
		}
	}
	var toCheck id.Set
	for _, ref := range zi.backward {
		if bzi, ok := ms.idx[ref]; ok {
			bzi.forward = remRef(bzi.forward, zid)
			toCheck = toCheck.Add(ref)
		}
	}
	return toCheck
}

func (ms *memStore) removeInverseMeta(zid id.Zid, key string, forward id.Slice) {
	// Must only be called if ms.mx is write-locked!
	for _, ref := range forward {
		bzi, ok := ms.idx[ref]
		if !ok || bzi.otherRefs == nil {
			continue
		}
		bmr, ok := bzi.otherRefs[key]
		if !ok {
			continue
		}
		bmr.backward = remRef(bmr.backward, zid)
		if len(bmr.backward) > 0 || len(bmr.forward) > 0 {
			bzi.otherRefs[key] = bmr
		} else {
			delete(bzi.otherRefs, key)
			if len(bzi.otherRefs) == 0 {
				bzi.otherRefs = nil
			}
		}
	}
}

func deleteStrings(msStringMap stringRefs, curStrings []string, zid id.Zid) {
	// Must only be called if ms.mx is write-locked!
	for _, word := range curStrings {
		refs, ok := msStringMap[word]
		if !ok {
			continue
		}
		refs2 := remRef(refs, zid)
		if len(refs2) == 0 {
			delete(msStringMap, word)
			continue
		}
		msStringMap[word] = refs2
	}
}

func (ms *memStore) ReadStats(st *store.Stats) {
	ms.mx.RLock()
	st.Zettel = len(ms.idx)
	st.Words = uint64(len(ms.words))
	st.Urls = uint64(len(ms.urls))
	ms.mx.RUnlock()
	ms.mxStats.Lock()
	st.Updates = ms.updates
	ms.mxStats.Unlock()
}

func (ms *memStore) Dump(w io.Writer) {
	ms.mx.RLock()
	defer ms.mx.RUnlock()

	io.WriteString(w, "=== Dump\n")
	ms.dumpIndex(w)
	ms.dumpDead(w)
	dumpStringRefs(w, "Words", "", "", ms.words)
	dumpStringRefs(w, "URLs", "[[", "]]", ms.urls)
}

func (ms *memStore) dumpIndex(w io.Writer) {
	if len(ms.idx) == 0 {
		return
	}
	io.WriteString(w, "==== Zettel Index\n")
	zids := make(id.Slice, 0, len(ms.idx))
	for id := range ms.idx {
		zids = append(zids, id)
	}
	zids.Sort()
	for _, id := range zids {
		fmt.Fprintln(w, "=====", id)
		zi := ms.idx[id]
		if len(zi.dead) > 0 {
			fmt.Fprintln(w, "* Dead:", zi.dead)
		}
		dumpZids(w, "* Forward:", zi.forward)
		dumpZids(w, "* Backward:", zi.backward)
		for k, fb := range zi.otherRefs {
			fmt.Fprintln(w, "* Meta", k)
			dumpZids(w, "** Forward:", fb.forward)
			dumpZids(w, "** Backward:", fb.backward)
		}
		dumpStrings(w, "* Words", "", "", zi.words)
		dumpStrings(w, "* URLs", "[[", "]]", zi.urls)
	}
}

func (ms *memStore) dumpDead(w io.Writer) {
	if len(ms.dead) == 0 {
		return
	}
	fmt.Fprintf(w, "==== Dead References\n")
	zids := make(id.Slice, 0, len(ms.dead))
	for id := range ms.dead {
		zids = append(zids, id)
	}
	zids.Sort()
	for _, id := range zids {
		fmt.Fprintln(w, ";", id)
		fmt.Fprintln(w, ":", ms.dead[id])
	}
}

func dumpZids(w io.Writer, prefix string, zids id.Slice) {
	if len(zids) > 0 {
		io.WriteString(w, prefix)
		for _, zid := range zids {
			io.WriteString(w, " ")
			w.Write(zid.Bytes())
		}
		fmt.Fprintln(w)
	}
}

func dumpStrings(w io.Writer, title, preString, postString string, slice []string) {
	if len(slice) > 0 {
		sl := make([]string, len(slice))
		copy(sl, slice)
		sort.Strings(sl)
		fmt.Fprintln(w, title)
		for _, s := range sl {
			fmt.Fprintf(w, "** %s%s%s\n", preString, s, postString)
		}
	}

}

func dumpStringRefs(w io.Writer, title, preString, postString string, srefs stringRefs) {
	if len(srefs) == 0 {
		return
	}
	fmt.Fprintln(w, "====", title)
	for _, s := range maps.Keys(srefs) {
		fmt.Fprintf(w, "; %s%s%s\n", preString, s, postString)
		fmt.Fprintln(w, ":", srefs[s])
	}
}
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Deleted box/manager/memstore/refs.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//-----------------------------------------------------------------------------

package memstore

import (
	"slices"

	"zettelstore.de/z/zettel/id"
)

func refsDiff(refsN, refsO id.Slice) (newRefs, remRefs id.Slice) {
	npos, opos := 0, 0
	for npos < len(refsN) && opos < len(refsO) {
		rn, ro := refsN[npos], refsO[opos]
		if rn == ro {
			npos++
			opos++
			continue
		}
		if rn < ro {
			newRefs = append(newRefs, rn)
			npos++
			continue
		}
		remRefs = append(remRefs, ro)
		opos++
	}
	if npos < len(refsN) {
		newRefs = append(newRefs, refsN[npos:]...)
	}
	if opos < len(refsO) {
		remRefs = append(remRefs, refsO[opos:]...)
	}
	return newRefs, remRefs
}

func addRef(refs id.Slice, ref id.Zid) id.Slice {
	hi := len(refs)
	for lo := 0; lo < hi; {
		m := lo + (hi-lo)/2
		if r := refs[m]; r == ref {
			return refs
		} else if r < ref {
			lo = m + 1
		} else {
			hi = m
		}
	}
	refs = slices.Insert(refs, hi, ref)
	return refs
}

func remRefs(refs, rem id.Slice) id.Slice {
	if len(refs) == 0 || len(rem) == 0 {
		return refs
	}
	result := make(id.Slice, 0, len(refs))
	rpos, dpos := 0, 0
	for rpos < len(refs) && dpos < len(rem) {
		rr, dr := refs[rpos], rem[dpos]
		if rr < dr {
			result = append(result, rr)
			rpos++
			continue
		}
		if dr < rr {
			dpos++
			continue
		}
		rpos++
		dpos++
	}
	if rpos < len(refs) {
		result = append(result, refs[rpos:]...)
	}
	return result
}

func remRef(refs id.Slice, ref id.Zid) id.Slice {
	hi := len(refs)
	for lo := 0; lo < hi; {
		m := lo + (hi-lo)/2
		if r := refs[m]; r == ref {
			copy(refs[m:], refs[m+1:])
			refs = refs[:len(refs)-1]
			return refs
		} else if r < ref {
			lo = m + 1
		} else {
			hi = m
		}
	}
	return refs
}
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Deleted box/manager/memstore/refs_test.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//-----------------------------------------------------------------------------

package memstore

import (
	"testing"

	"zettelstore.de/z/zettel/id"
)

func assertRefs(t *testing.T, i int, got, exp id.Slice) {
	t.Helper()
	if got == nil && exp != nil {
		t.Errorf("%d: got nil, but expected %v", i, exp)
		return
	}
	if got != nil && exp == nil {
		t.Errorf("%d: expected nil, but got %v", i, got)
		return
	}
	if len(got) != len(exp) {
		t.Errorf("%d: expected len(%v)==%d, but got len(%v)==%d", i, exp, len(exp), got, len(got))
		return
	}
	for p, n := range exp {
		if got := got[p]; got != id.Zid(n) {
			t.Errorf("%d: pos %d: expected %d, but got %d", i, p, n, got)
		}
	}
}

func TestRefsDiff(t *testing.T) {
	t.Parallel()
	testcases := []struct {
		in1, in2   id.Slice
		exp1, exp2 id.Slice
	}{
		{nil, nil, nil, nil},
		{id.Slice{1}, nil, id.Slice{1}, nil},
		{nil, id.Slice{1}, nil, id.Slice{1}},
		{id.Slice{1}, id.Slice{1}, nil, nil},
		{id.Slice{1, 2}, id.Slice{1}, id.Slice{2}, nil},
		{id.Slice{1, 2}, id.Slice{1, 3}, id.Slice{2}, id.Slice{3}},
		{id.Slice{1, 4}, id.Slice{1, 3}, id.Slice{4}, id.Slice{3}},
	}
	for i, tc := range testcases {
		got1, got2 := refsDiff(tc.in1, tc.in2)
		assertRefs(t, i, got1, tc.exp1)
		assertRefs(t, i, got2, tc.exp2)
	}
}

func TestAddRef(t *testing.T) {
	t.Parallel()
	testcases := []struct {
		ref id.Slice
		zid uint
		exp id.Slice
	}{
		{nil, 5, id.Slice{5}},
		{id.Slice{1}, 5, id.Slice{1, 5}},
		{id.Slice{10}, 5, id.Slice{5, 10}},
		{id.Slice{5}, 5, id.Slice{5}},
		{id.Slice{1, 10}, 5, id.Slice{1, 5, 10}},
		{id.Slice{1, 5, 10}, 5, id.Slice{1, 5, 10}},
	}
	for i, tc := range testcases {
		got := addRef(tc.ref, id.Zid(tc.zid))
		assertRefs(t, i, got, tc.exp)
	}
}

func TestRemRefs(t *testing.T) {
	t.Parallel()
	testcases := []struct {
		in1, in2 id.Slice
		exp      id.Slice
	}{
		{nil, nil, nil},
		{nil, id.Slice{}, nil},
		{id.Slice{}, nil, id.Slice{}},
		{id.Slice{}, id.Slice{}, id.Slice{}},
		{id.Slice{1}, id.Slice{5}, id.Slice{1}},
		{id.Slice{10}, id.Slice{5}, id.Slice{10}},
		{id.Slice{1, 5}, id.Slice{5}, id.Slice{1}},
		{id.Slice{5, 10}, id.Slice{5}, id.Slice{10}},
		{id.Slice{1, 10}, id.Slice{5}, id.Slice{1, 10}},
		{id.Slice{1}, id.Slice{2, 5}, id.Slice{1}},
		{id.Slice{10}, id.Slice{2, 5}, id.Slice{10}},
		{id.Slice{1, 5}, id.Slice{2, 5}, id.Slice{1}},
		{id.Slice{5, 10}, id.Slice{2, 5}, id.Slice{10}},
		{id.Slice{1, 2, 5}, id.Slice{2, 5}, id.Slice{1}},
		{id.Slice{2, 5, 10}, id.Slice{2, 5}, id.Slice{10}},
		{id.Slice{1, 10}, id.Slice{2, 5}, id.Slice{1, 10}},
		{id.Slice{1}, id.Slice{5, 9}, id.Slice{1}},
		{id.Slice{10}, id.Slice{5, 9}, id.Slice{10}},
		{id.Slice{1, 5}, id.Slice{5, 9}, id.Slice{1}},
		{id.Slice{5, 10}, id.Slice{5, 9}, id.Slice{10}},
		{id.Slice{1, 5, 9}, id.Slice{5, 9}, id.Slice{1}},
		{id.Slice{5, 9, 10}, id.Slice{5, 9}, id.Slice{10}},
		{id.Slice{1, 10}, id.Slice{5, 9}, id.Slice{1, 10}},
	}
	for i, tc := range testcases {
		got := remRefs(tc.in1, tc.in2)
		assertRefs(t, i, got, tc.exp)
	}
}

func TestRemRef(t *testing.T) {
	t.Parallel()
	testcases := []struct {
		ref id.Slice
		zid uint
		exp id.Slice
	}{
		{nil, 5, nil},
		{id.Slice{}, 5, id.Slice{}},
		{id.Slice{5}, 5, id.Slice{}},
		{id.Slice{1}, 5, id.Slice{1}},
		{id.Slice{10}, 5, id.Slice{10}},
		{id.Slice{1, 5}, 5, id.Slice{1}},
		{id.Slice{5, 10}, 5, id.Slice{10}},
		{id.Slice{1, 5, 10}, 5, id.Slice{1, 10}},
	}
	for i, tc := range testcases {
		got := remRef(tc.ref, id.Zid(tc.zid))
		assertRefs(t, i, got, tc.exp)
	}
}
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<


















































































































































































































































































Changes to box/manager/store/store.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package store contains general index data for storing a zettel index.
package store

import (
	"context"








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

// Package store contains general index data for storing a zettel index.
package store

import (
	"context"

Changes to box/manager/store/wordset.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package store

// WordSet contains the set of all words, with the count of their occurrences.
type WordSet map[string]int









>
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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package store

// WordSet contains the set of all words, with the count of their occurrences.
type WordSet map[string]int

Changes to box/manager/store/wordset_test.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package store_test

import (
	"sort"
	"testing"








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package store_test

import (
	"sort"
	"testing"

Changes to box/manager/store/zettel.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package store

import (
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package store

import (
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"

Changes to box/membox/membox.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package membox stores zettel volatile in main memory.
package membox

import (
	"context"








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

// Package membox stores zettel volatile in main memory.
package membox

import (
	"context"

Changes to box/notify/directory.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package notify

import (
	"errors"
	"fmt"








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package notify

import (
	"errors"
	"fmt"
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		return nil, false
	}

	switch ev.Op {
	case Error:
		newEntries = nil
		if state != DsMissing {
			ds.log.Warn().Err(ev.Err).Msg("Notifier confused")
		}
	case Make:
		newEntries = make(entrySet)
	case List:
		if ev.Name == "" {
			zids := getNewZids(newEntries)
			ds.mx.Lock()







|







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		return nil, false
	}

	switch ev.Op {
	case Error:
		newEntries = nil
		if state != DsMissing {
			ds.log.Error().Err(ev.Err).Msg("Notifier confused")
		}
	case Make:
		newEntries = make(entrySet)
	case List:
		if ev.Name == "" {
			zids := getNewZids(newEntries)
			ds.mx.Lock()
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		ds.mx.Lock()
		zid := ds.onDeleteFileEvent(ds.entries, ev.Name)
		ds.mx.Unlock()
		if zid != id.Invalid {
			ds.notifyChange(zid)
		}
	default:
		ds.log.Warn().Str("event", fmt.Sprintf("%v", ev)).Msg("Unknown zettel notification event")
	}
	return newEntries, true
}

func getNewZids(entries entrySet) id.Slice {
	zids := make(id.Slice, 0, len(entries))
	for zid := range entries {







|







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		ds.mx.Lock()
		zid := ds.onDeleteFileEvent(ds.entries, ev.Name)
		ds.mx.Unlock()
		if zid != id.Invalid {
			ds.notifyChange(zid)
		}
	default:
		ds.log.Error().Str("event", fmt.Sprintf("%v", ev)).Msg("Unknown zettel notification event")
	}
	return newEntries, true
}

func getNewZids(entries entrySet) id.Slice {
	zids := make(id.Slice, 0, len(entries))
	for zid := range entries {
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	zid := seekZid(name)
	if zid == id.Invalid {
		return id.Invalid
	}
	entry := fetchdirEntry(entries, zid)
	dupName1, dupName2 := ds.updateEntry(entry, name)
	if dupName1 != "" {
		ds.log.Warn().Str("name", dupName1).Msg("Duplicate content (is ignored)")
		if dupName2 != "" {
			ds.log.Warn().Str("name", dupName2).Msg("Duplicate content (is ignored)")
		}
		return id.Invalid
	}
	return zid
}

func (ds *DirService) onDeleteFileEvent(entries entrySet, name string) id.Zid {







|

|







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	zid := seekZid(name)
	if zid == id.Invalid {
		return id.Invalid
	}
	entry := fetchdirEntry(entries, zid)
	dupName1, dupName2 := ds.updateEntry(entry, name)
	if dupName1 != "" {
		ds.log.Info().Str("name", dupName1).Msg("Duplicate content (is ignored)")
		if dupName2 != "" {
			ds.log.Info().Str("name", dupName2).Msg("Duplicate content (is ignored)")
		}
		return id.Invalid
	}
	return zid
}

func (ds *DirService) onDeleteFileEvent(entries entrySet, name string) id.Zid {

Changes to box/notify/directory_test.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package notify

import (
	"testing"









>
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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2022-present Detlef Stern
//-----------------------------------------------------------------------------

package notify

import (
	"testing"

Changes to box/notify/entry.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package notify

import (
	"path/filepath"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

const (








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package notify

import (
	"path/filepath"

	"t73f.de/r/zsc/api"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

const (
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	if contentName := e.ContentName; contentName != "" {
		if !extIsMetaAndContent(e.ContentExt) && e.MetaName == "" {
			e.MetaName = e.calcBaseName(contentName)
		}
		return
	}

	syntax := m.GetDefault(api.KeySyntax, "")
	ext := calcContentExt(syntax, m.YamlSep, getZettelFileSyntax)
	metaName := e.MetaName
	eimc := extIsMetaAndContent(ext)
	if eimc {
		if metaName != "" {
			ext = contentExtWithMeta(syntax, content)
		}







|







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	if contentName := e.ContentName; contentName != "" {
		if !extIsMetaAndContent(e.ContentExt) && e.MetaName == "" {
			e.MetaName = e.calcBaseName(contentName)
		}
		return
	}

	syntax := m.GetDefault(api.KeySyntax, meta.DefaultSyntax)
	ext := calcContentExt(syntax, m.YamlSep, getZettelFileSyntax)
	metaName := e.MetaName
	eimc := extIsMetaAndContent(ext)
	if eimc {
		if metaName != "" {
			ext = contentExtWithMeta(syntax, content)
		}

Changes to box/notify/fsdir.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package notify

import (
	"os"
	"path/filepath"








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package notify

import (
	"os"
	"path/filepath"
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			log.Error().
				Str("parentDir", absParentDir).Err(errParent).
				Str("path", absPath).Err(err).
				Msg("Unable to access Zettel directory and its parent directory")
			watcher.Close()
			return nil, err
		}
		log.Warn().
			Str("parentDir", absParentDir).Err(errParent).
			Msg("Parent of Zettel directory cannot be supervised")
		log.Warn().Str("path", absPath).
			Msg("Zettelstore might not detect a deletion or movement of the Zettel directory")
	} else if err != nil {
		// Not a problem, if container is not available. It might become available later.
		log.Warn().Err(err).Str("path", absPath).Msg("Zettel directory not available")
	}

	fsdn := &fsdirNotifier{
		log:     log,
		events:  make(chan Event),
		refresh: make(chan struct{}),
		done:    make(chan struct{}),







<
|

|



|







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			log.Error().
				Str("parentDir", absParentDir).Err(errParent).
				Str("path", absPath).Err(err).
				Msg("Unable to access Zettel directory and its parent directory")
			watcher.Close()
			return nil, err
		}

		log.Info().Str("parentDir", absParentDir).Err(errParent).
			Msg("Parent of Zettel directory cannot be supervised")
		log.Info().Str("path", absPath).
			Msg("Zettelstore might not detect a deletion or movement of the Zettel directory")
	} else if err != nil {
		// Not a problem, if container is not available. It might become available later.
		log.Info().Err(err).Str("path", absPath).Msg("Zettel directory currently not available")
	}

	fsdn := &fsdirNotifier{
		log:     log,
		events:  make(chan Event),
		refresh: make(chan struct{}),
		done:    make(chan struct{}),
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		}
		return true
	}

	if ev.Has(fsnotify.Create) {
		err := fsdn.base.Add(fsdn.path)
		if err != nil {
			fsdn.log.IfErr(err).Str("name", fsdn.path).Msg("Unable to add directory")
			select {
			case fsdn.events <- Event{Op: Error, Err: err}:
			case <-fsdn.done:
				fsdn.log.Trace().Int("i", 2).Msg("done dir event processing")
				return false
			}
		}







|







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		}
		return true
	}

	if ev.Has(fsnotify.Create) {
		err := fsdn.base.Add(fsdn.path)
		if err != nil {
			fsdn.log.Error().Err(err).Str("name", fsdn.path).Msg("Unable to add directory")
			select {
			case fsdn.events <- Event{Op: Error, Err: err}:
			case <-fsdn.done:
				fsdn.log.Trace().Int("i", 2).Msg("done dir event processing")
				return false
			}
		}

Changes to box/notify/helper.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package notify

import (
	"archive/zip"
	"os"

	"zettelstore.de/z/logger"
)

// MakeMetaFilename builds the name of the file containing metadata.
func MakeMetaFilename(basename string) string {
	return basename //+ ".meta"
}

// EntryFetcher return a list of (file) names of an directory.
type EntryFetcher interface {
	Fetch() ([]string, error)
}

type dirPathFetcher struct {
	dirPath string








>
>
>











<
<
<
<
<







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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package notify

import (
	"archive/zip"
	"os"

	"zettelstore.de/z/logger"
)






// EntryFetcher return a list of (file) names of an directory.
type EntryFetcher interface {
	Fetch() ([]string, error)
}

type dirPathFetcher struct {
	dirPath string

Changes to box/notify/notify.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package notify provides some notification services to be used by box services.
package notify

import "fmt"









>
>
>







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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

// Package notify provides some notification services to be used by box services.
package notify

import "fmt"

Changes to box/notify/simpledir.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package notify

import (
	"path/filepath"









>
>
>







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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package notify

import (
	"path/filepath"

Changes to cmd/cmd_file.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package cmd

import (
	"context"
	"flag"
	"fmt"
	"io"
	"os"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/encoder"
	"zettelstore.de/z/input"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

// ---------- Subcommand: file -----------------------------------------------

func cmdFile(fs *flag.FlagSet) (int, error) {
	enc := fs.Lookup("t").Value.String()
	m, inp, err := getInput(fs.Args())
	if m == nil {
		return 2, err
	}
	z := parser.ParseZettel(
		context.Background(),
		zettel.Zettel{
			Meta:    m,
			Content: zettel.NewContent(inp.Src[inp.Pos:]),
		},
		m.GetDefault(api.KeySyntax, meta.SyntaxZmk),
		nil,
	)
	encdr := encoder.Create(api.Encoder(enc))
	if encdr == nil {
		fmt.Fprintf(os.Stderr, "Unknown format %q\n", enc)
		return 2, nil
	}
	_, err = encdr.WriteZettel(os.Stdout, z, parser.ParseMetadata)
	if err != nil {
		return 2, err








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package cmd

import (
	"context"
	"flag"
	"fmt"
	"io"
	"os"

	"t73f.de/r/zsc/api"
	"t73f.de/r/zsc/input"
	"zettelstore.de/z/encoder"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

// ---------- Subcommand: file -----------------------------------------------

func cmdFile(fs *flag.FlagSet) (int, error) {
	enc := fs.Lookup("t").Value.String()
	m, inp, err := getInput(fs.Args())
	if m == nil {
		return 2, err
	}
	z := parser.ParseZettel(
		context.Background(),
		zettel.Zettel{
			Meta:    m,
			Content: zettel.NewContent(inp.Src[inp.Pos:]),
		},
		m.GetDefault(api.KeySyntax, meta.DefaultSyntax),
		nil,
	)
	encdr := encoder.Create(api.Encoder(enc), &encoder.CreateParameter{Lang: m.GetDefault(api.KeyLang, api.ValueLangEN)})
	if encdr == nil {
		fmt.Fprintf(os.Stderr, "Unknown format %q\n", enc)
		return 2, nil
	}
	_, err = encdr.WriteZettel(os.Stdout, z, parser.ParseMetadata)
	if err != nil {
		return 2, err

Changes to cmd/cmd_password.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package cmd

import (
	"flag"
	"fmt"
	"os"

	"golang.org/x/term"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/auth/cred"
	"zettelstore.de/z/zettel/id"
)

// ---------- Subcommand: password -------------------------------------------

func cmdPassword(fs *flag.FlagSet) (int, error) {








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package cmd

import (
	"flag"
	"fmt"
	"os"

	"golang.org/x/term"

	"t73f.de/r/zsc/api"
	"zettelstore.de/z/auth/cred"
	"zettelstore.de/z/zettel/id"
)

// ---------- Subcommand: password -------------------------------------------

func cmdPassword(fs *flag.FlagSet) (int, error) {

Changes to cmd/cmd_run.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package cmd

import (
	"context"
	"flag"








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package cmd

import (
	"context"
	"flag"
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	ucGetAllZettel := usecase.NewGetAllZettel(protectedBoxManager)
	ucGetZettel := usecase.NewGetZettel(protectedBoxManager)
	ucParseZettel := usecase.NewParseZettel(rtConfig, ucGetZettel)
	ucQuery := usecase.NewQuery(protectedBoxManager)
	ucEvaluate := usecase.NewEvaluate(rtConfig, &ucGetZettel, &ucQuery)
	ucQuery.SetEvaluate(&ucEvaluate)
	ucTagZettel := usecase.NewTagZettel(protectedBoxManager, &ucQuery)

	ucListSyntax := usecase.NewListSyntax(protectedBoxManager)
	ucListRoles := usecase.NewListRoles(protectedBoxManager)
	ucDelete := usecase.NewDeleteZettel(logUc, protectedBoxManager)
	ucUpdate := usecase.NewUpdateZettel(logUc, protectedBoxManager)
	ucRename := usecase.NewRenameZettel(logUc, protectedBoxManager)
	ucRefresh := usecase.NewRefresh(logUc, protectedBoxManager)
	ucReIndex := usecase.NewReIndex(logUc, protectedBoxManager)







>







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	ucGetAllZettel := usecase.NewGetAllZettel(protectedBoxManager)
	ucGetZettel := usecase.NewGetZettel(protectedBoxManager)
	ucParseZettel := usecase.NewParseZettel(rtConfig, ucGetZettel)
	ucQuery := usecase.NewQuery(protectedBoxManager)
	ucEvaluate := usecase.NewEvaluate(rtConfig, &ucGetZettel, &ucQuery)
	ucQuery.SetEvaluate(&ucEvaluate)
	ucTagZettel := usecase.NewTagZettel(protectedBoxManager, &ucQuery)
	ucRoleZettel := usecase.NewRoleZettel(protectedBoxManager, &ucQuery)
	ucListSyntax := usecase.NewListSyntax(protectedBoxManager)
	ucListRoles := usecase.NewListRoles(protectedBoxManager)
	ucDelete := usecase.NewDeleteZettel(logUc, protectedBoxManager)
	ucUpdate := usecase.NewUpdateZettel(logUc, protectedBoxManager)
	ucRename := usecase.NewRenameZettel(logUc, protectedBoxManager)
	ucRefresh := usecase.NewRefresh(logUc, protectedBoxManager)
	ucReIndex := usecase.NewReIndex(logUc, protectedBoxManager)
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		webSrv.AddZettelRoute('c', server.MethodPost, wui.MakePostCreateZettelHandler(&ucCreateZettel))
		webSrv.AddZettelRoute('d', server.MethodGet, wui.MakeGetDeleteZettelHandler(ucGetZettel, ucGetAllZettel))
		webSrv.AddZettelRoute('d', server.MethodPost, wui.MakePostDeleteZettelHandler(&ucDelete))
		webSrv.AddZettelRoute('e', server.MethodGet, wui.MakeEditGetZettelHandler(ucGetZettel, ucListRoles, ucListSyntax))
		webSrv.AddZettelRoute('e', server.MethodPost, wui.MakeEditSetZettelHandler(&ucUpdate))
	}
	webSrv.AddListRoute('g', server.MethodGet, wui.MakeGetGoActionHandler(&ucRefresh))
	webSrv.AddListRoute('h', server.MethodGet, wui.MakeListHTMLMetaHandler(&ucQuery, &ucTagZettel, &ucReIndex))
	webSrv.AddZettelRoute('h', server.MethodGet, wui.MakeGetHTMLZettelHandler(&ucEvaluate, ucGetZettel))
	webSrv.AddListRoute('i', server.MethodGet, wui.MakeGetLoginOutHandler())
	webSrv.AddListRoute('i', server.MethodPost, wui.MakePostLoginHandler(&ucAuthenticate))
	webSrv.AddZettelRoute('i', server.MethodGet, wui.MakeGetInfoHandler(
		ucParseZettel, &ucEvaluate, ucGetZettel, ucGetAllZettel, &ucQuery))

	// API
	webSrv.AddListRoute('a', server.MethodPost, a.MakePostLoginHandler(&ucAuthenticate))
	webSrv.AddListRoute('a', server.MethodPut, a.MakeRenewAuthHandler())
	webSrv.AddListRoute('x', server.MethodGet, a.MakeGetDataHandler(ucVersion))
	webSrv.AddListRoute('x', server.MethodPost, a.MakePostCommandHandler(&ucIsAuth, &ucRefresh))
	webSrv.AddListRoute('z', server.MethodGet, a.MakeQueryHandler(&ucQuery, &ucTagZettel, &ucReIndex))
	webSrv.AddZettelRoute('z', server.MethodGet, a.MakeGetZettelHandler(ucGetZettel, ucParseZettel, ucEvaluate))
	if !authManager.IsReadonly() {
		webSrv.AddListRoute('z', server.MethodPost, a.MakePostCreateZettelHandler(&ucCreateZettel))
		webSrv.AddZettelRoute('z', server.MethodPut, a.MakeUpdateZettelHandler(&ucUpdate))
		webSrv.AddZettelRoute('z', server.MethodDelete, a.MakeDeleteZettelHandler(&ucDelete))
		webSrv.AddZettelRoute('z', server.MethodMove, a.MakeRenameZettelHandler(&ucRename))
	}







|











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		webSrv.AddZettelRoute('c', server.MethodPost, wui.MakePostCreateZettelHandler(&ucCreateZettel))
		webSrv.AddZettelRoute('d', server.MethodGet, wui.MakeGetDeleteZettelHandler(ucGetZettel, ucGetAllZettel))
		webSrv.AddZettelRoute('d', server.MethodPost, wui.MakePostDeleteZettelHandler(&ucDelete))
		webSrv.AddZettelRoute('e', server.MethodGet, wui.MakeEditGetZettelHandler(ucGetZettel, ucListRoles, ucListSyntax))
		webSrv.AddZettelRoute('e', server.MethodPost, wui.MakeEditSetZettelHandler(&ucUpdate))
	}
	webSrv.AddListRoute('g', server.MethodGet, wui.MakeGetGoActionHandler(&ucRefresh))
	webSrv.AddListRoute('h', server.MethodGet, wui.MakeListHTMLMetaHandler(&ucQuery, &ucTagZettel, &ucRoleZettel, &ucReIndex))
	webSrv.AddZettelRoute('h', server.MethodGet, wui.MakeGetHTMLZettelHandler(&ucEvaluate, ucGetZettel))
	webSrv.AddListRoute('i', server.MethodGet, wui.MakeGetLoginOutHandler())
	webSrv.AddListRoute('i', server.MethodPost, wui.MakePostLoginHandler(&ucAuthenticate))
	webSrv.AddZettelRoute('i', server.MethodGet, wui.MakeGetInfoHandler(
		ucParseZettel, &ucEvaluate, ucGetZettel, ucGetAllZettel, &ucQuery))

	// API
	webSrv.AddListRoute('a', server.MethodPost, a.MakePostLoginHandler(&ucAuthenticate))
	webSrv.AddListRoute('a', server.MethodPut, a.MakeRenewAuthHandler())
	webSrv.AddListRoute('x', server.MethodGet, a.MakeGetDataHandler(ucVersion))
	webSrv.AddListRoute('x', server.MethodPost, a.MakePostCommandHandler(&ucIsAuth, &ucRefresh))
	webSrv.AddListRoute('z', server.MethodGet, a.MakeQueryHandler(&ucQuery, &ucTagZettel, &ucRoleZettel, &ucReIndex))
	webSrv.AddZettelRoute('z', server.MethodGet, a.MakeGetZettelHandler(ucGetZettel, ucParseZettel, ucEvaluate))
	if !authManager.IsReadonly() {
		webSrv.AddListRoute('z', server.MethodPost, a.MakePostCreateZettelHandler(&ucCreateZettel))
		webSrv.AddZettelRoute('z', server.MethodPut, a.MakeUpdateZettelHandler(&ucUpdate))
		webSrv.AddZettelRoute('z', server.MethodDelete, a.MakeDeleteZettelHandler(&ucDelete))
		webSrv.AddZettelRoute('z', server.MethodMove, a.MakeRenameZettelHandler(&ucRename))
	}

Changes to cmd/command.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package cmd

import (
	"flag"

	"zettelstore.de/client.fossil/maps"
	"zettelstore.de/z/logger"
)

// Command stores information about commands / sub-commands.
type Command struct {
	Name       string              // command name as it appears on the command line
	Func       CommandFunc         // function that executes a command








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package cmd

import (
	"flag"

	"t73f.de/r/zsc/maps"
	"zettelstore.de/z/logger"
)

// Command stores information about commands / sub-commands.
type Command struct {
	Name       string              // command name as it appears on the command line
	Func       CommandFunc         // function that executes a command

Changes to cmd/main.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package cmd

import (
	"crypto/sha256"
	"flag"
	"fmt"
	"net"
	"net/url"
	"os"
	"runtime/debug"
	"strconv"
	"strings"
	"time"

	"zettelstore.de/client.fossil/api"

	"zettelstore.de/z/auth"
	"zettelstore.de/z/auth/impl"
	"zettelstore.de/z/box"
	"zettelstore.de/z/box/compbox"
	"zettelstore.de/z/box/manager"
	"zettelstore.de/z/config"
	"zettelstore.de/z/input"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/logger"
	"zettelstore.de/z/web/server"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)









>
>
>
















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>






<







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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package cmd

import (
	"crypto/sha256"
	"flag"
	"fmt"
	"net"
	"net/url"
	"os"
	"runtime/debug"
	"strconv"
	"strings"
	"time"

	"t73f.de/r/zsc/api"
	"t73f.de/r/zsc/input"
	"zettelstore.de/z/auth"
	"zettelstore.de/z/auth/impl"
	"zettelstore.de/z/box"
	"zettelstore.de/z/box/compbox"
	"zettelstore.de/z/box/manager"
	"zettelstore.de/z/config"

	"zettelstore.de/z/kernel"
	"zettelstore.de/z/logger"
	"zettelstore.de/z/web/server"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

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	return err == nil
}

func setConfigValue(err error, subsys kernel.Service, key string, val any) error {
	if err == nil {
		err = kernel.Main.SetConfig(subsys, key, fmt.Sprint(val))
		if err != nil {
			kernel.Main.GetKernelLogger().Fatal().Str("key", key).Str("value", fmt.Sprint(val)).Err(err).Msg("Unable to set configuration")
		}
	}
	return err
}

func executeCommand(name string, args ...string) int {
	command, ok := Get(name)







|







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	return err == nil
}

func setConfigValue(err error, subsys kernel.Service, key string, val any) error {
	if err == nil {
		err = kernel.Main.SetConfig(subsys, key, fmt.Sprint(val))
		if err != nil {
			kernel.Main.GetKernelLogger().Error().Str("key", key).Str("value", fmt.Sprint(val)).Err(err).Msg("Unable to set configuration")
		}
	}
	return err
}

func executeCommand(name string, args ...string) int {
	command, ok := Get(name)

Changes to cmd/register.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package cmd provides command generic functions.
package cmd

// Mention all needed encoders, parsers and stores to have them registered.
import (








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

// Package cmd provides command generic functions.
package cmd

// Mention all needed encoders, parsers and stores to have them registered.
import (

Changes to cmd/zettelstore/main.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package main is the starting point for the zettelstore command.
package main

import (
	"os"








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>







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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

// Package main is the starting point for the zettelstore command.
package main

import (
	"os"

Changes to collect/collect.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package collect provides functions to collect items from a syntax tree.
package collect

import "zettelstore.de/z/ast"









>
>
>







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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

// Package collect provides functions to collect items from a syntax tree.
package collect

import "zettelstore.de/z/ast"

Changes to collect/collect_test.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package collect_test provides some unit test for collectors.
package collect_test

import (
	"testing"








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

// Package collect_test provides some unit test for collectors.
package collect_test

import (
	"testing"

Changes to collect/order.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package collect provides functions to collect items from a syntax tree.
package collect

import "zettelstore.de/z/ast"









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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

// Package collect provides functions to collect items from a syntax tree.
package collect

import "zettelstore.de/z/ast"

Deleted collect/split.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//-----------------------------------------------------------------------------

// Package collect provides functions to collect items from a syntax tree.
package collect

import (
	"zettelstore.de/z/ast"
	"zettelstore.de/z/strfun"
)

// DivideReferences divides the given list of rederences into zettel, local, and external References.
func DivideReferences(all []*ast.Reference) (zettel, local, external []*ast.Reference) {
	if len(all) == 0 {
		return nil, nil, nil
	}

	mapZettel := make(strfun.Set)
	mapLocal := make(strfun.Set)
	mapExternal := make(strfun.Set)
	for _, ref := range all {
		if ref.State == ast.RefStateSelf {
			continue
		}
		if ref.IsZettel() {
			zettel = appendRefToList(zettel, mapZettel, ref)
		} else if ref.IsExternal() {
			external = appendRefToList(external, mapExternal, ref)
		} else {
			local = appendRefToList(local, mapLocal, ref)
		}
	}
	return zettel, local, external
}

func appendRefToList(reflist []*ast.Reference, refSet strfun.Set, ref *ast.Reference) []*ast.Reference {
	s := ref.String()
	if !refSet.Has(s) {
		reflist = append(reflist, ref)
		refSet.Set(s)
	}
	return reflist
}
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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package config provides functions to retrieve runtime configuration data.
package config

import (
	"context"

	"zettelstore.de/z/zettel/meta"
)

// Key values that are supported by Config.Get
const (
	KeyFooterZettel = "footer-zettel"
	KeyHomeZettel   = "home-zettel"




	// api.KeyLang
)

// Config allows to retrieve all defined configuration values that can be changed during runtime.
type Config interface {
	AuthConfig









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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

// Package config provides functions to retrieve runtime configuration data.
package config

import (
	"context"

	"zettelstore.de/z/zettel/meta"
)

// Key values that are supported by Config.Get
const (
	KeyFooterZettel         = "footer-zettel"
	KeyHomeZettel           = "home-zettel"
	KeyShowBackLinks        = "show-back-links"
	KeyShowFolgeLinks       = "show-folge-links"
	KeyShowSubordinateLinks = "show-subordinate-links"
	KeyShowSuccessorLinks   = "show-successor-links"
	// api.KeyLang
)

// Config allows to retrieve all defined configuration values that can be changed during runtime.
type Config interface {
	AuthConfig

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id: 00010000000000
title: Developments Notes
role: zettel
syntax: zmk
created: 00010101000000
modified: 20221026184905

* [[Required Software|20210916193200]]
* [[Fuzzing tests|20221026184300]]
* [[Checklist for Release|20210916194900]]






|




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id: 00010000000000
title: Developments Notes
role: zettel
syntax: zmk
created: 00010101000000
modified: 20231218182020

* [[Required Software|20210916193200]]
* [[Fuzzing tests|20221026184300]]
* [[Checklist for Release|20210916194900]]
* [[Development tools|20231218181900]]

Changes to docs/development/20210916193200.zettel.

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id: 20210916193200
title: Required Software
role: zettel
syntax: zmk
created: 20210916193200
modified: 20230405150541

The following software must be installed:

* A current, supported [[release of Go|https://go.dev/doc/devel/release]],
* [[Fossil|https://fossil-scm.org/]],
* [[Git|https://git-scm.org/]] (most dependencies are accessible via Git only).

Make sure that the software is in your path, e.g. via:
```sh
export PATH=$PATH:/usr/local/go/bin
export PATH=$PATH:$(go env GOPATH)/bin
```

The internal build tool need the following software.
It can be installed / updated via the build tool itself: ``go run tools/build.go tools``.

Otherwise you can install the software by hand:

* [[shadow|https://pkg.go.dev/golang.org/x/tools/go/analysis/passes/shadow]] via ``go install golang.org/x/tools/go/analysis/passes/shadow/cmd/shadow@latest``,
* [[staticcheck|https://staticcheck.io/]] via ``go install honnef.co/go/tools/cmd/staticcheck@latest``,
* [[unparam|https://mvdan.cc/unparam]][^[[GitHub|https://github.com/mvdan/unparam]]] via ``go install mvdan.cc/unparam@latest``,
* [[govulncheck|https://golang.org/x/vuln/cmd/govulncheck]] via ``go install golang.org/x/vuln/cmd/govulncheck@latest``,





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id: 20210916193200
title: Required Software
role: zettel
syntax: zmk
created: 20210916193200
modified: 20231213194509

The following software must be installed:

* A current, supported [[release of Go|https://go.dev/doc/devel/release]],
* [[Fossil|https://fossil-scm.org/]],
* [[Git|https://git-scm.org/]] (most dependencies are accessible via Git only).

Make sure that the software is in your path, e.g. via:
```sh
export PATH=$PATH:/usr/local/go/bin
export PATH=$PATH:$(go env GOPATH)/bin
```

The internal build tool need the following software.
It can be installed / updated via the build tool itself: ``go run tools/devtools/devtools.go``.

Otherwise you can install the software by hand:

* [[shadow|https://pkg.go.dev/golang.org/x/tools/go/analysis/passes/shadow]] via ``go install golang.org/x/tools/go/analysis/passes/shadow/cmd/shadow@latest``,
* [[staticcheck|https://staticcheck.io/]] via ``go install honnef.co/go/tools/cmd/staticcheck@latest``,
* [[unparam|https://mvdan.cc/unparam]][^[[GitHub|https://github.com/mvdan/unparam]]] via ``go install mvdan.cc/unparam@latest``,
* [[govulncheck|https://golang.org/x/vuln/cmd/govulncheck]] via ``go install golang.org/x/vuln/cmd/govulncheck@latest``,

Changes to docs/development/20210916194900.zettel.

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id: 20210916194900
title: Checklist for Release
role: zettel
syntax: zmk
created: 20210916194900
modified: 20230402181229

# Sync with the official repository
#* ``fossil sync -u``
# Make sure that there is no workspace defined.
#* ``ls ..`` must not have a file ''go.work'', in no parent folder.
# Make sure that all dependencies are up-to-date.
#* ``cat go.mod``
# Clean up your Go workspace:
#* ``go run tools/build.go clean`` (alternatively: ``make clean``).
# All internal tests must succeed:
#* ``go run tools/build.go relcheck`` (alternatively: ``make relcheck``).
# The API tests must succeed on every development platform:
#* ``go run tools/build.go testapi`` (alternatively: ``make api``).
# Run [[linkchecker|https://linkchecker.github.io/linkchecker/]] with the manual:
#* ``go run -race cmd/zettelstore/main.go run -d docs/manual``
#* ``linkchecker http://127.0.0.1:23123 2>&1 | tee lc.txt``
#* Check all ""Error: 404 Not Found""
#* Check all ""Error: 403 Forbidden"": allowed for endpoint ''/p'' with encoding ''html'' for those zettel that are accessible only in ''expert-mode''.
#* Try to resolve other error messages and warnings
#* Warnings about empty content can be ignored





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id: 20210916194900
title: Checklist for Release
role: zettel
syntax: zmk
created: 20210916194900
modified: 20231213194631

# Sync with the official repository
#* ``fossil sync -u``
# Make sure that there is no workspace defined.
#* ``ls ..`` must not have a file ''go.work'', in no parent folder.
# Make sure that all dependencies are up-to-date.
#* ``cat go.mod``
# Clean up your Go workspace:
#* ``go run tools/clean/clean.go`` (alternatively: ``make clean``).
# All internal tests must succeed:
#* ``go run tools/check/check.go -r`` (alternatively: ``make relcheck``).
# The API tests must succeed on every development platform:
#* ``go run tools/testapi/testapi.go`` (alternatively: ``make api``).
# Run [[linkchecker|https://linkchecker.github.io/linkchecker/]] with the manual:
#* ``go run -race cmd/zettelstore/main.go run -d docs/manual``
#* ``linkchecker http://127.0.0.1:23123 2>&1 | tee lc.txt``
#* Check all ""Error: 404 Not Found""
#* Check all ""Error: 403 Forbidden"": allowed for endpoint ''/p'' with encoding ''html'' for those zettel that are accessible only in ''expert-mode''.
#* Try to resolve other error messages and warnings
#* Warnings about empty content can be ignored
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# Disable Fossil autosync mode:
#* ``fossil setting autosync off``
# Commit the new release version:
#* ``fossil commit --tag release --tag vVERSION -m "Version VERSION"``
#* **Important:** the tag must follow the given pattern, e.g. ''v0.0.15''.
   Otherwise client will not be able to import ''zettelkasten.de/z''.
# Clean up your Go workspace:
#* ``go run tools/build.go clean`` (alternatively: ``make clean``).
# Create the release:
#* ``go run tools/build.go release`` (alternatively: ``make release``).
# Remove previous executables:
#* ``fossil uv remove --glob '*-PREVVERSION*'``
# Add executables for release:
#* ``cd releases``
#* ``fossil uv add *.zip``
#* ``cd ..``
#* Synchronize with main repository:
#* ``fossil sync -u``
# Enable autosync:
#* ``fossil setting autosync on``







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# Disable Fossil autosync mode:
#* ``fossil setting autosync off``
# Commit the new release version:
#* ``fossil commit --tag release --tag vVERSION -m "Version VERSION"``
#* **Important:** the tag must follow the given pattern, e.g. ''v0.0.15''.
   Otherwise client will not be able to import ''zettelkasten.de/z''.
# Clean up your Go workspace:
#* ``go run tools/clean/clean.go`` (alternatively: ``make clean``).
# Create the release:
#* ``go run tools/build/build.go release`` (alternatively: ``make release``).
# Remove previous executables:
#* ``fossil uv remove --glob '*-PREVVERSION*'``
# Add executables for release:
#* ``cd releases``
#* ``fossil uv add *.zip``
#* ``cd ..``
#* Synchronize with main repository:
#* ``fossil sync -u``
# Enable autosync:
#* ``fossil setting autosync on``

Added docs/development/20231218181900.zettel.











































































































































































































































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id: 20231218181900
title: Development tools
role: zettel
syntax: zmk
created: 20231218181956
modified: 20231218184500

The source code contains some tools to assist the development of Zettelstore.
These are located in the ''tools'' directory.

Most tool support the generic option ``-v``, which log internal activities.

Some of the tools can be called easier by using ``make``, that reads in a provided ''Makefile''.

=== Check
The ""check"" tool automates some testing activities.
It is called via the command line:
```
# go run tools/check/check.go
```
There is an additional option ``-r`` to check in advance of a release.

The following checks are executed:
* Execution of unit tests, like ``go test ./...``
* Analyze the source code for general problems, as in ``go vet ./...``
* Tries to find shadowed variable, via ``shadow ./...``
* Performs some additional checks on the source code, via ``staticcheck ./...``
* Checks the usage of function parameters and usage of return values, via ``unparam ./...``.
  In case the option ''-r'' is set, the check includes exported functions and internal tests.
* In case option ''-r'' is set, the source code is checked against the vulnerability database, via ``govulncheck ./...``

Please note, that most of the tools above are not automatically installed in a standard Go distribution.
Use the command ""devtools"" to install them.

=== Devtools
The following command installs all needed tools:
```
# go run tooles/devtools/devtools.go
```
It will also automatically update these tools.

=== TestAPI
The following command will perform some high-level tests:
```sh
# go run tools/testapi/testapi.go
```
Basically, a Zettelstore will be started and then API calls will be made to simulate some typical activities with the Zettelstore.

If a Zettelstore is already running on port 23123, this Zettelstore will be used instead.
Even if the API test should clean up later, some zettel might stay created if a test fails.
This feature is used, if you want to have more control on the running Zettelstore.
You should start it with the following command:
```sh
# go run -race cmd/zettelstore/main.go run -c testdata/testbox/19700101000000.zettel
```
This allows you to debug failing API tests.

=== HTMLlint
The following command will check the generated HTML code for validity:
```sh
# go run tools/htmllint/htmllint.go
```
In addition, you might specify the URL od a running Zettelstore.
Otherwise ''http://localhost:23123'' is used.

This command fetches first the list of all zettel.
This list is used to check the generated HTML code (''ZID'' is the paceholder for the zettel identification):

* Check all zettel HTML encodings, via the path ''/z/ZID?enc=html&part=zettel''
* Check all zettel web views, via the path ''/h/ZID''
* The info page of all zettel is checked, via path ''/i/ZID''
* A subset of max. 100 zettel will be checked for the validity of their edit page, via ''/e/ZID''
* 10 random zettel are checked for a valid create form, via ''/c/ZID''
* The zettel rename form will be checked for 100 zettel, via ''/b/ZID''
* A maximum of 200 random zettel are checked for a valid delete dialog, via ''/d/ZID''

Depending on the selected Zettelstore, the command might take a long time.

You can shorten the time, if you disable any zettel query in the footer.

=== Build
The ""build"" tool allows to build the software, either for tests or for a release.

The following command will create a Zettelstore executable for the architecture of the current computer:
```sh
# go tools/build/build.go build
```
You will find the executable in the ''bin'' directory.

A full release will be build in the directory ''releases'', containing ZIP files for the computer architectures ""Linux/amd64"", ""Linux/arm"", ""MacOS/arm64"", ""MacOS/amd64"", and ""Windows/amd64"".
In addition, the manual is also build as a ZIP file:
```sh
# go run tools/build/build.go release
```

If you just want the ZIP file with the manual, please use:
```sh
# go run tools/build/build.go manual
```

In case you want to check the version of the Zettelstore to be build, use:
```sh
# go run tools/build/build.go version
```

=== Clean
To remove the directories ''bin'' and ''releases'', as well as all cached Go libraries used by Zettelstore, execute:
```sh
# go run tools/clean/clean.go
```

Internally, the following commands are executed
```sh
# rm -rf bin releases
# go clean ./...
# go clean -cache -modcache -testcache
```

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id: 00001000000000
title: Zettelstore Manual
role: manual
tags: #manual #zettelstore
syntax: zmk
created: 00010101000000
modified: 20231002143058


* [[Introduction|00001001000000]]
* [[Design goals|00001002000000]]
* [[Installation|00001003000000]]
* [[Configuration|00001004000000]]
* [[Structure of Zettelstore|00001005000000]]
* [[Layout of a zettel|00001006000000]]





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id: 00001000000000
title: Zettelstore Manual
role: manual
tags: #manual #zettelstore
syntax: zmk
created: 20210301190630
modified: 20231125185455
show-back-links: false

* [[Introduction|00001001000000]]
* [[Design goals|00001002000000]]
* [[Installation|00001003000000]]
* [[Configuration|00001004000000]]
* [[Structure of Zettelstore|00001005000000]]
* [[Layout of a zettel|00001006000000]]

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id: 00001004010000
title: Zettelstore startup configuration
role: manual
tags: #configuration #manual #zettelstore
syntax: zmk
created: 20210126175322
modified: 20221128155143

The configuration file, as specified by the ''-c CONFIGFILE'' [[command line option|00001004051000]], allows you to specify some startup options.
These options cannot be stored in a [[configuration zettel|00001004020000]] because either they are needed before Zettelstore can start or because of security reasons.
For example, Zettelstore need to know in advance, on which network address is must listen or where zettel are stored.
An attacker that is able to change the owner can do anything.
Therefore only the owner of the computer on which Zettelstore runs can change this information.







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id: 00001004010000
title: Zettelstore startup configuration
role: manual
tags: #configuration #manual #zettelstore
syntax: zmk
created: 20210126175322
modified: 20240220190138

The configuration file, as specified by the ''-c CONFIGFILE'' [[command line option|00001004051000]], allows you to specify some startup options.
These options cannot be stored in a [[configuration zettel|00001004020000]] because either they are needed before Zettelstore can start or because of security reasons.
For example, Zettelstore need to know in advance, on which network address is must listen or where zettel are stored.
An attacker that is able to change the owner can do anything.
Therefore only the owner of the computer on which Zettelstore runs can change this information.

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  Can be changed at runtime, even for specific internal services, with the ''log-level'' command of the [[administrator console|00001004101000#log-level]].

  Several specifications are separated by the semicolon character (""'';''"", U+003B).
  Each specification consists of an optional service name, together with the colon character (""'':''"", U+003A), followed by the logging level.

  Default: ""info"".

  Examples: ""sense"" will produce sensing messages (e.g. a little more than ""info""); ""sense;web:debug"" will emit debugging messages for the web component of Zettelstore while still producing sensing messages for all other components.

  When you are familiar to operate the Zettelstore, you might set the level to ""warn"" or ""error"" to receive less noisy messages from the Zettelstore.
; [!max-request-size|''max-request-size'']
: Limits the maximum byte size of a web request body to prevent clients from accidentally or maliciously sending a large request and wasting server resources.
  The minimum value is 1024.

  Default: 16777216 (16 MiB). 
; [!owner|''owner'']
: [[Identifier|00001006050000]] of a zettel that contains data about the owner of the Zettelstore.







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  Can be changed at runtime, even for specific internal services, with the ''log-level'' command of the [[administrator console|00001004101000#log-level]].

  Several specifications are separated by the semicolon character (""'';''"", U+003B).
  Each specification consists of an optional service name, together with the colon character (""'':''"", U+003A), followed by the logging level.

  Default: ""info"".

  Examples: ""error"" will produce just error messages (e.g. no ""info"" messages); ""error;web:debug"" will emit debugging messages for the web component of Zettelstore while still producing error messages for all other components.

  When you are familiar to operate the Zettelstore, you might set the level to ""error"" to receive less noisy messages from the Zettelstore.
; [!max-request-size|''max-request-size'']
: Limits the maximum byte size of a web request body to prevent clients from accidentally or maliciously sending a large request and wasting server resources.
  The minimum value is 1024.

  Default: 16777216 (16 MiB). 
; [!owner|''owner'']
: [[Identifier|00001006050000]] of a zettel that contains data about the owner of the Zettelstore.

Changes to docs/manual/00001004020000.zettel.

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id: 00001004020000
title: Configure the running Zettelstore
role: manual
tags: #configuration #manual #zettelstore
syntax: zmk
created: 20210126175322
modified: 20230807171016


You can configure a running Zettelstore by modifying the special zettel with the ID [[00000000000100]].
This zettel is called __configuration zettel__.
The following metadata keys change the appearance / behavior of Zettelstore.
Some of them can be overwritten in an [[user zettel|00001010040200]], a subset of those may be overwritten in zettel that is currently used.
See the full list of [[metadata that may be overwritten|00001004020200]].

; [!default-copyright|''default-copyright'']
: Copyright value to be used when rendering content.
  Can be overwritten in a zettel with [[meta key|00001006020000]] ''copyright''.

  Default: (the empty string).
; [!default-license|''default-license'']
: License value to be used when rendering content.
  Can be overwritten in a zettel with [[meta key|00001006020000]] ''license''.

  Default: (the empty string).
; [!default-visibility|''default-visibility'']
: Visibility to be used, if zettel does not specify a value for the [[''visibility''|00001006020000#visibility]] metadata key.

  Default: ""login"".
; [!expert-mode|''expert-mode'']
: If set to a [[boolean true value|00001006030500]], all zettel with [[visibility ""expert""|00001010070200]] will be shown (to the owner, if [[authentication is enabled|00001010040100]]; to all, otherwise).
  This affects most computed zettel.

  Default: ""False"".
; [!footer-zettel|''footer-zettel'']
: Identifier of a zettel that is rendered as HTML and will be placed as the footer of every zettel in the [[web user interface|00001014000000]].
  Zettel content, delivered via the [[API|00001012000000]] as symbolic expressions, etc. is not affected.
  If the zettel identifier is invalid or references a zettel that could not be read (possibly because of a limited [[visibility setting|00001010070200]]), nothing is written as the footer.

  May be [[overwritten|00001004020200]] in a user zettel.






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id: 00001004020000
title: Configure the running Zettelstore
role: manual
tags: #configuration #manual #zettelstore
syntax: zmk
created: 20210126175322
modified: 20231126180829
show-back-links: false

You can configure a running Zettelstore by modifying the special zettel with the ID [[00000000000100]].
This zettel is called __configuration zettel__.
The following metadata keys change the appearance / behavior of Zettelstore.
Some of them can be overwritten in an [[user zettel|00001010040200]], a subset of those may be overwritten in zettel that is currently used.
See the full list of [[metadata that may be overwritten|00001004020200]].

; [!default-copyright|''default-copyright'']
: Copyright value to be used when rendering content.
  Can be overwritten in a zettel with [[meta key|00001006020000]] ''copyright''.

  Default: (the empty string).
; [!default-license|''default-license'']
: License value to be used when rendering content.
  Can be overwritten in a zettel with [[meta key|00001006020000]] ''license''.

  Default: (the empty string).
; [!default-visibility|''default-visibility'']
: Visibility to be used, if zettel does not specify a value for the [[''visibility''|00001006020000#visibility]] metadata key.

  Default: ""login"".
; [!expert-mode|''expert-mode'']
: If set to a [[boolean true value|00001006030500]], all zettel with [[visibility ""expert""|00001010070200]] will be shown (to the owner, if [[authentication is enabled|00001010040100]]; to all, otherwise).
  This affects most computed zettel.

  Default: ""False"".
; [!footer-zettel|''footer-zettel'']
: Identifier of a zettel that is rendered as HTML and will be placed as the footer of every zettel in the [[web user interface|00001014000000]].
  Zettel content, delivered via the [[API|00001012000000]] as symbolic expressions, etc. is not affected.
  If the zettel identifier is invalid or references a zettel that could not be read (possibly because of a limited [[visibility setting|00001010070200]]), nothing is written as the footer.

  May be [[overwritten|00001004020200]] in a user zettel.
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  This value is used as a default value, if it is not set in an user's zettel or in a zettel.
  It is also used to specify the language for all non-zettel content, e.g. lists or search results.

  Use values according to the language definition of [[RFC-5646|https://tools.ietf.org/html/rfc5646]].
; [!max-transclusions|''max-transclusions'']
: Maximum number of indirect transclusion.
  This is used to avoid an exploding ""transclusion bomb"", a form of a [[billion laughs attack|https://en.wikipedia.org/wiki/Billion_laughs_attack]].

  Default: ""1024"".














; [!site-name|''site-name'']
: Name of the Zettelstore instance.
  Will be used when displaying some lists.

  Default: ""Zettelstore"".
; [!yaml-header|''yaml-header'']
: If [[true|00001006030500]], metadata and content will be separated by ''---\\n'' instead of an empty line (''\\n\\n'').

  Default: ""False"".

  You will probably use this key, if you are working with another software processing [[Markdown|https://daringfireball.net/projects/markdown/]] that uses a subset of [[YAML|https://yaml.org/]] to specify metadata.
; [!zettel-file-syntax|''zettel-file-syntax'']
: If you create a new zettel with a syntax different to ""zmk"", Zettelstore will store the zettel as two files:
  one for the metadata (file without a filename extension) and another for the content (file extension based on the syntax value).
  If you want to specify alternative syntax values, for which you want new zettel to be stored in one file (file extension ''.zettel''), you can use this key.
  All values are case-insensitive, duplicate values are removed.

  For example, you could use this key if you're working with Markdown syntax and you want to store metadata and content in one ''.zettel'' file.

  If ''yaml-header'' evaluates to true, a zettel is always stored in one ''.zettel'' file.







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  This value is used as a default value, if it is not set in an user's zettel or in a zettel.
  It is also used to specify the language for all non-zettel content, e.g. lists or search results.

  Use values according to the language definition of [[RFC-5646|https://tools.ietf.org/html/rfc5646]].
; [!max-transclusions|''max-transclusions'']
: Maximum number of indirect transclusion.
  This is used to avoid an exploding ""transclusion bomb"", a form of a [[billion laughs attack|https://en.wikipedia.org/wiki/Billion_laughs_attack]].

  Default: ""1024"".
; [!show-back-links|''show-back-links''], [!show-folge-links|''show-folge-links''], [!show-subordinate-links|''show-subordinate-links''], [!show-successor-links|''show-successor-links'']
: When displaying a zettel in the web user interface, references to other zettel are normally shown below the content of the zettel.
  This affects the metadata keys [[''back''|00001006020000#back]], [[''folge''|00001006020000#folge]], [[''subordinates''|00001006020000#subordinates]], and  [[''successors''|00001006020000#successors]].

  These configuration keys may be used to show, not to show, or to close the list of referenced zettel.

  Allowed values are: ""false"" (will not show the list), ""close"" (will show the list closed), and ""open"" / """" (will show the list).

  Default: """".

  May be [[overwritten|00001004020200]] in a user zettel, so that setting will only affect the given user.
  Alternatively, it may be overwritten in a zettel, so that that the setting will affect only the given zettel.

  This zettel is an example of a zettel that sets ''show-back-links'' to ""false"".
; [!site-name|''site-name'']
: Name of the Zettelstore instance.
  Will be used when displaying some lists.

  Default: ""Zettelstore"".
; [!yaml-header|''yaml-header'']
: If [[true|00001006030500]], metadata and content will be separated by ''---\\n'' instead of an empty line (''\\n\\n'').

  Default: ""False"".

  You will probably use this key, if you are working with another software processing [[Markdown|https://daringfireball.net/projects/markdown/]] that uses a subset of [[YAML|https://yaml.org/]] to specify metadata.
; [!zettel-file-syntax|''zettel-file-syntax'']
: If you create a new zettel with a syntax different to ""zmk"", Zettelstore will store the zettel as two files:
  one for the metadata (file without a filename extension) and another for the content (file extension based on the syntax value).
  If you want to specify alternative syntax values, for which you want new zettel to be stored in one file (file extension ''.zettel''), you can use this key.
  All values are case-insensitive, duplicate values are removed.

  For example, you could use this key if you're working with Markdown syntax and you want to store metadata and content in one ''.zettel'' file.

  If ''yaml-header'' evaluates to true, a zettel is always stored in one ''.zettel'' file.

Changes to docs/manual/00001004020200.zettel.

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id: 00001004020200
title: Runtime configuration data that may be user specific or zettel specific
role: manual
tags: #configuration #manual #zettelstore
syntax: zmk
created: 20221205155521
modified: 20230317183403

Some metadata of the [[runtime configuration|00001004020000]] may be overwritten in an [[user zettel|00001010040200]].
A subset of those may be overwritten in zettel that is currently used.
This allows to specify user specific or zettel specific behavior.

The following metadata keys are supported to provide a more specific behavior:

|=Key|User:|Zettel:|Remarks
|[[''footer-zettel''|00001004020000#footer-zettel]]|Y|N|
|[[''home-zettel''|00001004020000#home-zettel]]|Y|N|
|[[''lang''|00001004020000#lang]]|Y|Y|Making it user-specific could make zettel for other user less useful










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id: 00001004020200
title: Runtime configuration data that may be user specific or zettel specific
role: manual
tags: #configuration #manual #zettelstore
syntax: zmk
created: 20221205155521
modified: 20231126180752

Some metadata of the [[runtime configuration|00001004020000]] may be overwritten in an [[user zettel|00001010040200]].
A subset of those may be overwritten in zettel that is currently used.
This allows to specify user specific or zettel specific behavior.

The following metadata keys are supported to provide a more specific behavior:

|=Key|User:|Zettel:|Remarks
|[[''footer-zettel''|00001004020000#footer-zettel]]|Y|N|
|[[''home-zettel''|00001004020000#home-zettel]]|Y|N|
|[[''lang''|00001004020000#lang]]|Y|Y|Making it user-specific could make zettel for other user less useful
|[[''show-back-links''|00001004020000#show-back-links]]|Y|Y|
|[[''show-folge-links''|00001004020000#show-folge-links]]|Y|Y|
|[[''show-subordinate-links''|00001004020000#show-subordinate-links]]|Y|Y|
|[[''show-successor-links''|00001004020000#show-successor-links]]|Y|Y|

Changes to docs/manual/00001004059700.zettel.

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id: 00001004059700
title: List of supported logging levels
role: manual
tags: #configuration #manual #zettelstore
syntax: zmk

modified: 20220113183606

Zettelstore supports various levels of logging output.
This allows you to see the inner workings of Zettelstore, or to avoid it.

Each level has an associated name and number.
A lower number signals more logging output.

|= Name | Number >| Description
| Trace | 1 | Show most of the inner workings
| Debug | 2 | Show many internal values that might be interesting for a [[Zettelstore developer|00000000000005]].
| Sense | 3 | Display sensing events, which are not essential information.
| Info  | 4 | Display information about an event. In most cases, there is no required action expected from you.
| Warn  | 5 | Show a warning, i.e. an event that might become an error or more. Mostly invalid data.
| Error | 6 | Notify about an error, which was handled automatically. Something is broken. User intervention is not required, in most cases. Monitor the application.
| Fatal | 7 | Notify about a significant error that cannot be handled automatically. At least some important functionality is disabled.
| Panic | 8 | The application is in an uncertain state and notifies you about its panic. At least some part of the application is possibly restarted.
| Mandatory | 9 | Important message will be shown, e.g. the Zettelstore version at startup time.
| Disabled | 10 | No messages will be shown

If you set the logging level to a certain value, only messages with the same or higher numerical value will be shown.
E.g. if you set the logging level to ""warn"", no ""trace"", ""debug"", ""sense", and ""info"" messages are shown, but ""warn"", ""error"", ""fatal"", ""panic"", and ""mandatory"" messages.





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id: 00001004059700
title: List of supported logging levels
role: manual
tags: #configuration #manual #zettelstore
syntax: zmk
created: 20211204182643
modified: 20240221134619

Zettelstore supports various levels of logging output.
This allows you to see the inner workings of Zettelstore, or to avoid it.

Each level has an associated name and number.
A lower number signals more logging output.

|= Name | Number :| Description
| Trace | 1 | Show most of the inner workings
| Debug | 2 | Show many internal values that might be interesting for a [[Zettelstore developer|00000000000005]].

| Info  | 3 | Display information about an event. In most cases, there is no required action expected from you.

| Error | 4 | Notify about an error, which was handled automatically. Something is broken. User intervention may be required, some important functionality may be disabled. Monitor the application.


| Mandatory | 5 | Important message will be shown, e.g. the Zettelstore version at startup time.
| Disabled | 6 | No messages will be shown

If you set the logging level to a certain value, only messages with the same or higher numerical value will be shown.
E.g. if you set the logging level to ""error"", no ""trace"", ""debug"", and ""info"" messages are shown, but ""error"" and ""mandatory"" messages.

Changes to docs/manual/00001005090000.zettel.

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id: 00001005090000
title: List of predefined zettel
role: manual
tags: #manual #reference #zettelstore
syntax: zmk
created: 20210126175322
modified: 20231002104819

The following table lists all predefined zettel with their purpose.

|= Identifier :|= Title | Purpose
| [[00000000000001]] | Zettelstore Version | Contains the version string of the running Zettelstore
| [[00000000000002]] | Zettelstore Host | Contains the name of the computer running the Zettelstore
| [[00000000000003]] | Zettelstore Operating System | Contains the operating system and CPU architecture of the computer running the Zettelstore
| [[00000000000004]] | Zettelstore License | Lists the license of Zettelstore
| [[00000000000005]] | Zettelstore Contributors | Lists all contributors of Zettelstore
| [[00000000000006]] | Zettelstore Dependencies | Lists all licensed content
| [[00000000000007]] | Zettelstore Log | Lists the last 8192 log messages

| [[00000000000020]] | Zettelstore Box Manager | Contains some statistics about zettel boxes and the the index process
| [[00000000000090]] | Zettelstore Supported Metadata Keys | Contains all supported metadata keys, their [[types|00001006030000]], and more
| [[00000000000092]] | Zettelstore Supported Parser | Lists all supported values for metadata [[syntax|00001006020000#syntax]] that are recognized by Zettelstore
| [[00000000000096]] | Zettelstore Startup Configuration | Contains the effective values of the [[startup configuration|00001004010000]]
| [[00000000000100]] | Zettelstore Runtime Configuration | Allows to [[configure Zettelstore at runtime|00001004020000]]
| [[00000000010100]] | Zettelstore Base HTML Template | Contains the general layout of the HTML view
| [[00000000010200]] | Zettelstore Login Form HTML Template | Layout of the login form, when authentication is [[enabled|00001010040100]]
| [[00000000010300]] | Zettelstore List Zettel HTML Template | Used when displaying a list of zettel
| [[00000000010401]] | Zettelstore Detail HTML Template | Layout for the HTML detail view of one zettel
| [[00000000010402]] | Zettelstore Info HTML Template | Layout for the information view of a specific zettel
| [[00000000010403]] | Zettelstore Form HTML Template | Form that is used to create a new or to change an existing zettel that contains text
| [[00000000010404]] | Zettelstore Rename Form HTML Template | View that is displayed to change the [[zettel identifier|00001006050000]]
| [[00000000010405]] | Zettelstore Delete HTML Template | View to confirm the deletion of a zettel
| [[00000000010700]] | Zettelstore Error HTML Template | View to show an error message
| [[00000000019000]] | Zettelstore Sxn Start Code | Starting point of sxn functions to build the templates
| [[00000000019990]] | Zettelstore Sxn Base Code | Base sxn functions to build the templates
| [[00000000020001]] | Zettelstore Base CSS | System-defined CSS file that is included by the [[Base HTML Template|00000000010100]]
| [[00000000025001]] | Zettelstore User CSS | User-defined CSS file that is included by the [[Base HTML Template|00000000010100]]
| [[00000000040001]] | Generic Emoji | Image that is shown if [[original image reference|00001007040322]] is invalid




| [[00000000090000]] | New Menu | Contains items that should contain in the zettel template menu
| [[00000000090001]] | New Zettel | Template for a new zettel with role ""[[zettel|00001006020100#zettel]]""
| [[00000000090002]] | New User | Template for a new [[user zettel|00001010040200]]
| [[00000000090003]] | New Tag | Template for a new [[tag zettel|00001006020100#tag]]

| [[00010000000000]] | Home | Default home zettel, contains some welcome information

If a zettel is not linked, it is not accessible for the current user.


**Important:** All identifier may change until a stable version of the software is released.






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id: 00001005090000
title: List of predefined zettel
role: manual
tags: #manual #reference #zettelstore
syntax: zmk
created: 20210126175322
modified: 20240318115839

The following table lists all predefined zettel with their purpose.

|= Identifier :|= Title | Purpose
| [[00000000000001]] | Zettelstore Version | Contains the version string of the running Zettelstore
| [[00000000000002]] | Zettelstore Host | Contains the name of the computer running the Zettelstore
| [[00000000000003]] | Zettelstore Operating System | Contains the operating system and CPU architecture of the computer running the Zettelstore
| [[00000000000004]] | Zettelstore License | Lists the license of Zettelstore
| [[00000000000005]] | Zettelstore Contributors | Lists all contributors of Zettelstore
| [[00000000000006]] | Zettelstore Dependencies | Lists all licensed content
| [[00000000000007]] | Zettelstore Log | Lists the last 8192 log messages
| [[00000000000008]] | Zettelstore Memory | Some statistics about main memory usage
| [[00000000000020]] | Zettelstore Box Manager | Contains some statistics about zettel boxes and the the index process
| [[00000000000090]] | Zettelstore Supported Metadata Keys | Contains all supported metadata keys, their [[types|00001006030000]], and more
| [[00000000000092]] | Zettelstore Supported Parser | Lists all supported values for metadata [[syntax|00001006020000#syntax]] that are recognized by Zettelstore
| [[00000000000096]] | Zettelstore Startup Configuration | Contains the effective values of the [[startup configuration|00001004010000]]
| [[00000000000100]] | Zettelstore Runtime Configuration | Allows to [[configure Zettelstore at runtime|00001004020000]]
| [[00000000010100]] | Zettelstore Base HTML Template | Contains the general layout of the HTML view
| [[00000000010200]] | Zettelstore Login Form HTML Template | Layout of the login form, when authentication is [[enabled|00001010040100]]
| [[00000000010300]] | Zettelstore List Zettel HTML Template | Used when displaying a list of zettel
| [[00000000010401]] | Zettelstore Detail HTML Template | Layout for the HTML detail view of one zettel
| [[00000000010402]] | Zettelstore Info HTML Template | Layout for the information view of a specific zettel
| [[00000000010403]] | Zettelstore Form HTML Template | Form that is used to create a new or to change an existing zettel that contains text
| [[00000000010404]] | Zettelstore Rename Form HTML Template | View that is displayed to change the [[zettel identifier|00001006050000]]
| [[00000000010405]] | Zettelstore Delete HTML Template | View to confirm the deletion of a zettel
| [[00000000010700]] | Zettelstore Error HTML Template | View to show an error message
| [[00000000019000]] | Zettelstore Sxn Start Code | Starting point of sxn functions to build the templates
| [[00000000019990]] | Zettelstore Sxn Base Code | Base sxn functions to build the templates
| [[00000000020001]] | Zettelstore Base CSS | System-defined CSS file that is included by the [[Base HTML Template|00000000010100]]
| [[00000000025001]] | Zettelstore User CSS | User-defined CSS file that is included by the [[Base HTML Template|00000000010100]]
| [[00000000040001]] | Generic Emoji | Image that is shown if [[original image reference|00001007040322]] is invalid
| [[00000000060010]] | zettel | [[Role zettel|00001012051800]] for the role ""[[zettel|00001006020100#zettel]]""
| [[00000000060020]] | confguration | [[Role zettel|00001012051800]] for the role ""[[confguration|00001006020100#confguration]]""
| [[00000000060030]] | role | [[Role zettel|00001012051800]] for the role ""[[role|00001006020100#role]]""
| [[00000000060040]] | tag | [[Role zettel|00001012051800]] for the role ""[[tag|00001006020100#tag]]""
| [[00000000090000]] | New Menu | Contains items that should be in the zettel template menu
| [[00000000090001]] | New Zettel | Template for a new zettel with role ""[[zettel|00001006020100#zettel]]""
| [[00000000090002]] | New User | Template for a new [[user zettel|00001010040200]]
| [[00000000090003]] | New Tag | Template for a new [[tag zettel|00001006020100#tag]]
| [[00000000090004]] | New Role | Template for a new [[role zettel|00001006020100#role]]
| [[00010000000000]] | Home | Default home zettel, contains some welcome information

If a zettel is not linked, it is not accessible for the current user.
In most cases, you must at least enable [[''expert-mode''|00001004020000#expert-mode]].

**Important:** All identifier may change until a stable version of the software is released.

Changes to docs/manual/00001006010000.zettel.

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id: 00001006010000
title: Syntax of Metadata
role: manual
tags: #manual #syntax #zettelstore
syntax: zmk

modified: 20220218131923

The metadata of a zettel is a collection of key-value pairs.
The syntax roughly resembles the internal header of an email ([[RFC5322|https://tools.ietf.org/html/rfc5322]]).

The key is a sequence of alphanumeric characters, a hyphen-minus character (""''-''"", U+002D) is also allowed.
It begins at the first position of a new line.


A key is separated from its value either by
* a colon character (""'':''""),
* a non-empty sequence of space characters,
* a sequence of space characters, followed by a colon, followed by a sequence of space characters.

A Value is a sequence of printable characters.
If the value should be continued in the following line, that following line (""continuation line"") must begin with a non-empty sequence of space characters.
The rest of the following line will be interpreted as the next part of the value.
There can be more than one continuation line for a value.

A non-continuation line that contains a possibly empty sequence of characters, followed by the percent sign character (""''%''"") is treated as a comment line.
It will be ignored.






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id: 00001006010000
title: Syntax of Metadata
role: manual
tags: #manual #syntax #zettelstore
syntax: zmk
created: 20210126175322
modified: 20240219193158

The metadata of a zettel is a collection of key-value pairs.
The syntax roughly resembles the internal header of an email ([[RFC5322|https://tools.ietf.org/html/rfc5322]]).

The key is a sequence of alphanumeric characters, a hyphen-minus character (""''-''"", U+002D) is also allowed.
It begins at the first position of a new line.
Uppercase letters of a key are translated to their lowercase equivalence.

A key is separated from its value either by
* a colon character (""'':''""),
* a non-empty sequence of space characters,
* a sequence of space characters, followed by a colon, followed by a sequence of space characters.

A value is a sequence of printable characters.
If the value should be continued in the following line, that following line (""continuation line"") must begin with a non-empty sequence of space characters.
The rest of the following line will be interpreted as the next part of the value.
There can be more than one continuation line for a value.

A non-continuation line that contains a possibly empty sequence of characters, followed by the percent sign character (""''%''"") is treated as a comment line.
It will be ignored.

Changes to docs/manual/00001006020100.zettel.

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id: 00001006020100
title: Supported Zettel Roles
role: manual
tags: #manual #meta #reference #zettel #zettelstore
syntax: zmk
created: 00010101000000
modified: 20230829233016

The [[''role'' key|00001006020000#role]] defines what kind of zettel you are writing.
You are free to define your own roles.
It is allowed to set an empty value or to omit the role.

Some roles are defined for technical reasons:

; [!configuration|''configuration'']
: A zettel that contains some configuration data for the Zettelstore.
  Most prominent is [[00000000000100]], as described in [[00001004020000]].
; [!manual|''manual'']
: All zettel that document the inner workings of the Zettelstore software.
  This role is only used in this specific Zettelstore.



; [!tag|''tag'']
: A zettel with the role ""tag"" and a title, which names a [[tag|00001006020000#tags]], is treated as a __tag zettel__.
  Basically, tag zettel describe the tag, and form a hierarchiy of meta-tags.




If you adhere to the process outlined by Niklas Luhmann, a zettel could have one of the following three roles:

; [!note|''note'']
: A small note, to remember something.
  Notes are not real zettel, they just help to create a real zettel.
  Think of them as Post-it notes.
; [!literature|''literature'']
: Contains some remarks about a book, a paper, a web page, etc.
  You should add a citation key for citing it.
; [!zettel|''zettel'']
: A real zettel that contains your own thoughts.

However, you are free to define additional roles, e.g. ''material'' for literature that is web-based only, ''slide'' for presentation slides, ''paper'' for the text of a scientific paper, ''project'' to define a project, ...





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id: 00001006020100
title: Supported Zettel Roles
role: manual
tags: #manual #meta #reference #zettel #zettelstore
syntax: zmk
created: 20210126175322
modified: 20231129173620

The [[''role'' key|00001006020000#role]] defines what kind of zettel you are writing.
You are free to define your own roles.
It is allowed to set an empty value or to omit the role.

Some roles are defined for technical reasons:

; [!configuration|''configuration'']
: A zettel that contains some configuration data / information for the Zettelstore.
  Most prominent is [[00000000000100]], as described in [[00001004020000]].
; [!manual|''manual'']
: All zettel that document the inner workings of the Zettelstore software.
  This role is only used in this specific Zettelstore.
; [!role|''role'']
: A zettel with the role ""role"" and a title, which names a [[role|00001006020000#role]], is treated as a __role zettel__.
  Basically, role zettel describe the role, and form a hierarchiy of meta-roles.
; [!tag|''tag'']
: A zettel with the role ""tag"" and a title, which names a [[tag|00001006020000#tags]], is treated as a __tag zettel__.
  Basically, tag zettel describe the tag, and form a hierarchiy of meta-tags.
; [!zettel|''zettel'']
: A zettel that contains your own thoughts.
  The real reason to use this software.

If you adhere to the process outlined by Niklas Luhmann, a zettel could have one of the following three roles:

; [!note|''note'']
: A small note, to remember something.
  Notes are not real zettel, they just help to create a real zettel.
  Think of them as Post-it notes.
; [!literature|''literature'']
: Contains some remarks about a book, a paper, a web page, etc.
  You should add a citation key for citing it.
; ''zettel''
: (as described above)

However, you are free to define additional roles, e.g. ''material'' for literature that is web-based only, ''slide'' for presentation slides, ''paper'' for the text of a scientific paper, ''project'' to define a project, ...

Changes to docs/manual/00001006030000.zettel.

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id: 00001006030000
title: Supported Key Types
role: manual
tags: #manual #meta #reference #zettel #zettelstore
syntax: zmk
created: 20210126175322
modified: 20230612183742

All [[supported metadata keys|00001006020000]] conform to a type.

User-defined metadata keys conform also to a type, based on the suffix of the key.

|=Suffix|Type
| ''-date'' | [[Timestamp|00001006034500]]
| ''-number'' | [[Number|00001006033000]]
| ''-role'' | [[Word|00001006035500]]
| ''-set'' | [[WordSet|00001006036000]]
| ''-time'' | [[Timestamp|00001006034500]]
| ''-title'' | [[Zettelmarkup|00001006036500]]
| ''-url'' | [[URL|00001006035000]]
| ''-zettel''  | [[Identifier|00001006032000]]
| ''-zid''  | [[Identifier|00001006032000]]
| ''-zids''  | [[IdentifierSet|00001006032500]]
| any other suffix | [[EString|00001006031500]]






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id: 00001006030000
title: Supported Key Types
role: manual
tags: #manual #meta #reference #zettel #zettelstore
syntax: zmk
created: 20210126175322
modified: 20240219161909

All [[supported metadata keys|00001006020000]] conform to a type.

User-defined metadata keys conform also to a type, based on the suffix of the key.

|=Suffix|Type
| ''-date'' | [[Timestamp|00001006034500]]
| ''-number'' | [[Number|00001006033000]]
| ''-role'' | [[Word|00001006035500]]

| ''-time'' | [[Timestamp|00001006034500]]
| ''-title'' | [[Zettelmarkup|00001006036500]]
| ''-url'' | [[URL|00001006035000]]
| ''-zettel''  | [[Identifier|00001006032000]]
| ''-zid''  | [[Identifier|00001006032000]]
| ''-zids''  | [[IdentifierSet|00001006032500]]
| any other suffix | [[EString|00001006031500]]
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* [[IdentifierSet|00001006032500]]
* [[Number|00001006033000]]
* [[String|00001006033500]]
* [[TagSet|00001006034000]]
* [[Timestamp|00001006034500]]
* [[URL|00001006035000]]
* [[Word|00001006035500]]
* [[WordSet|00001006036000]]
* [[Zettelmarkup|00001006036500]]







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* [[IdentifierSet|00001006032500]]
* [[Number|00001006033000]]
* [[String|00001006033500]]
* [[TagSet|00001006034000]]
* [[Timestamp|00001006034500]]
* [[URL|00001006035000]]
* [[Word|00001006035500]]

* [[Zettelmarkup|00001006036500]]

Changes to docs/manual/00001006034500.zettel.

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id: 00001006034500
title: Timestamp Key Type
role: manual
tags: #manual #meta #reference #zettel #zettelstore
syntax: zmk
created: 20210212135017
modified: 20230612183509

Values of this type denote a point in time.

=== Allowed values
Must be a sequence of 14 digits (""0""--""9"") (same as an [[Identifier|00001006032000]]), with the restriction that is conforms to the pattern ""YYYYMMDDhhmmss"".

* YYYY is the year,
* MM is the month,
* DD is the day,
* hh is the hour,
* mm is the minute,
* ss is the second.

=== Query comparison
[[Search values|00001007706000]] with more than 14 characters are truncated to contain exactly 14 characters.


When the [[search operators|00001007705000]] ""less"", ""not less"", ""greater"", and ""not greater"" are given, the length of the search value is checked.
If it contains less than 14 digits, zero digits (""0"") are appended, until it contains exactly 14 digits.



All other comparisons assume that up to 14 characters are given.



Comparison is done through the string representation.
In case of the search operators ""less"", ""not less"", ""greater"", and ""not greater"", this is the same as a numerical comparison.

=== Sorting
Sorting is done by comparing the [[String|00001006033500]] values.

If both values are timestamp values, this works well because both have the same length.






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id: 00001006034500
title: Timestamp Key Type
role: manual
tags: #manual #meta #reference #zettel #zettelstore
syntax: zmk
created: 20210212135017
modified: 20231030182858

Values of this type denote a point in time.

=== Allowed values
Must be a sequence of 4, 6, 8, 10, 12, or 14 digits (""0""--""9"") (similar to an [[Identifier|00001006032000]]), with the restriction that it must conform to the pattern ""YYYYMMDDhhmmss"".

* YYYY is the year,
* MM is the month,
* DD is the day,
* hh is the hour,
* mm is the minute,
* ss is the second.

If the sequence is less than 14 digits, they are expanded with the following rule:


* YYYY is expanded to YYYY0101000000
* YYYYMM is expanded to YYYYMM01000000
* YYYYMMDD is expanded to YYYYMMDD000000
* YYYYMMDDhh is expanded to YYYYMMDDhh0000
* YYYYMMDDhhmm is expanded to YYYYMMDDhhmm00

=== Query comparison
[[Search values|00001007706000]] with more than 14 characters are truncated to contain exactly 14 characters.
Then, they are treated as timestamp data, as describe above, if they contain 4, 6, 8, 10, or 12 digits.

Comparison is done through the string representation.
In case of the search operators ""less"", ""not less"", ""greater"", and ""not greater"", this is the same as a numerical comparison.

=== Sorting
Sorting is done by comparing the possibly expanded values.


Deleted docs/manual/00001006036000.zettel.

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id: 00001006036000
title: WordSet Key Type
role: manual
tags: #manual #meta #reference #zettel #zettelstore
syntax: zmk
created: 20210212135017
modified: 20230419175745

Values of this type denote a (sorted) set of [[words|00001006035500]].

A set is different to a list, as no duplicate values are allowed.

=== Allowed values
Must be a sequence of at least one word, separated by space characters.

=== Query comparison
All comparisons are done case-insensitive, i.e. ""hell"" will be the prefix of ""World, Hello"".

=== Sorting
Sorting is done by comparing the [[String|00001006033500]] values.
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Changes to docs/manual/00001007031140.zettel.

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id: 00001007031140
title: Zettelmarkup: Query Transclusion
role: manual
tags: #manual #search #zettelmarkup #zettelstore
syntax: zmk
created: 20220809132350
modified: 20231023163751

A query transclusion is specified by the following sequence, starting at the first position in a line: ''{{{query:query-expression}}}''.
The line must literally start with the sequence ''{{{query:''.
Everything after this prefix is interpreted as a [[query expression|00001007700000]].

When evaluated, the query expression is evaluated, often resulting in a list of [[links|00001007040310]] to zettel, matching the query expression.
The result replaces the query transclusion element.






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id: 00001007031140
title: Zettelmarkup: Query Transclusion
role: manual
tags: #manual #search #zettelmarkup #zettelstore
syntax: zmk
created: 20220809132350
modified: 20240219161800

A query transclusion is specified by the following sequence, starting at the first position in a line: ''{{{query:query-expression}}}''.
The line must literally start with the sequence ''{{{query:''.
Everything after this prefix is interpreted as a [[query expression|00001007700000]].

When evaluated, the query expression is evaluated, often resulting in a list of [[links|00001007040310]] to zettel, matching the query expression.
The result replaces the query transclusion element.
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: Transform the zettel list into an [[Atom 1.0|https://www.rfc-editor.org/rfc/rfc4287]]-conformant document / feed.
  The document is embedded into the referencing zettel.
; ''RSS'' (aggregate)
: Transform the zettel list into a [[RSS 2.0|https://www.rssboard.org/rss-specification]]-conformant document / feed.
  The document is embedded into the referencing zettel.
; ''KEYS'' (aggregate)
: Emit a list of all metadata keys, together with the number of zettel having the key.
; ''REINDEX'' (aggregate)
: Will be ignored.
  This action may have been copied from an existing [[API query call|00001012051400]] (or from a WebUI query), but is here superfluous (and possibly harmful).
; Any [[metadata key|00001006020000]] of type [[Word|00001006035500]], [[WordSet|00001006036000]], or [[TagSet|00001006034000]] (aggregates)
: Emit an aggregate of the given metadata key.
  The key can be given in any letter case[^Except if the key name collides with one of the above names. In this case use at least one lower case letter.].




Example:
```zmk
{{{query:tags:#search | tags}}}
```
This is a tag cloud of all tags that are used together with the tag #search:
:::example
{{{query:tags:#search | tags}}}
:::







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: Transform the zettel list into an [[Atom 1.0|https://www.rfc-editor.org/rfc/rfc4287]]-conformant document / feed.
  The document is embedded into the referencing zettel.
; ''RSS'' (aggregate)
: Transform the zettel list into a [[RSS 2.0|https://www.rssboard.org/rss-specification]]-conformant document / feed.
  The document is embedded into the referencing zettel.
; ''KEYS'' (aggregate)
: Emit a list of all metadata keys, together with the number of zettel having the key.
; ''REDIRECT'', ''REINDEX'' (aggregate)
: Will be ignored.
  These actions may have been copied from an existing [[API query call|00001012051400]] (or from a WebUI query), but are here superfluous (and possibly harmful).
; Any [[metadata key|00001006020000]] of type [[Word|00001006035500]] or of type [[TagSet|00001006034000]] (aggregates)
: Emit an aggregate of the given metadata key.
  The key can be given in any letter case[^Except if the key name collides with one of the above names. In this case use at least one lower case letter.].

To allow some kind of backward compatibility, an action written in uppercase letters that leads to an empty result list, will be ignored.
In this case the list of selected zettel is returned.

Example:
```zmk
{{{query:tags:#search | tags}}}
```
This is a tag cloud of all tags that are used together with the tag #search:
:::example
{{{query:tags:#search | tags}}}
:::

Changes to docs/manual/00001007040100.zettel.

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id: 00001007040100
title: Zettelmarkup: Text Formatting
role: manual
tags: #manual #zettelmarkup #zettelstore
syntax: zmk

modified: 20220218131003

Text formatting is the way to make your text visually different.
Every text formatting element begins with two same characters.
It ends when these two same characters occur the second time.
It is possible that some [[attributes|00001007050000]] follow immediately, without any separating character.

Text formatting can be nested, up to a reasonable limit.





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id: 00001007040100
title: Zettelmarkup: Text Formatting
role: manual
tags: #manual #zettelmarkup #zettelstore
syntax: zmk
created: 20210126175322
modified: 20231113191353

Text formatting is the way to make your text visually different.
Every text formatting element begins with two same characters.
It ends when these two same characters occur the second time.
It is possible that some [[attributes|00001007050000]] follow immediately, without any separating character.

Text formatting can be nested, up to a reasonable limit.
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* The circumflex accent character (""''^''"", U+005E) allows to enter super-scripted text.
** Example: ``e=mc^^2^^`` is rendered in HTML as: ::e=mc^^2^^::{=example}.
* The comma character (""'',''"", U+002C) produces sub-scripted text.
** Example: ``H,,2,,O`` is rendered in HTML as: ::H,,2,,O::{=example}.
* The quotation mark character (""''"''"", U+0022) marks an inline quotation, according to the [[specified language|00001007050100]].
** Example: ``""To be or not""`` is rendered in HTML as: ::""To be or not""::{=example}.
** Example: ``""Sein oder nicht""{lang=de}`` is rendered in HTML as: ::""Sein oder nicht""{lang=de}::{=example}.



* The colon character (""'':''"", U+003A) mark some text that should belong together. It fills a similar role as [[region blocks|00001007030800]], but just for inline elements.
** Example: ``abc ::def::{=example} ghi`` is rendered in HTML as: abc ::def::{=example} ghi.







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* The circumflex accent character (""''^''"", U+005E) allows to enter super-scripted text.
** Example: ``e=mc^^2^^`` is rendered in HTML as: ::e=mc^^2^^::{=example}.
* The comma character (""'',''"", U+002C) produces sub-scripted text.
** Example: ``H,,2,,O`` is rendered in HTML as: ::H,,2,,O::{=example}.
* The quotation mark character (""''"''"", U+0022) marks an inline quotation, according to the [[specified language|00001007050100]].
** Example: ``""To be or not""`` is rendered in HTML as: ::""To be or not""::{=example}.
** Example: ``""Sein oder nicht""{lang=de}`` is rendered in HTML as: ::""Sein oder nicht""{lang=de}::{=example}.
* The number sign (""''#''"", U+0023) marks the text visually, where the mark does not belong to the text itself.
  It is typically used to highlight some text that is important for you, but was not important for the original author.
** Example: ``abc ##def## ghi`` is rendered in HTML as: ::abc ##def## ghi::{=example}.
* The colon character (""'':''"", U+003A) mark some text that should belong together. It fills a similar role as [[region blocks|00001007030800]], but just for inline elements.
** Example: ``abc ::def::{=example} ghi`` is rendered in HTML as: abc ::def::{=example} ghi.

Changes to docs/manual/00001007040324.zettel.

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id: 00001007040324
title: Zettelmarkup: Inline-mode Transclusion
role: manual
tags: #manual #zettelmarkup #zettelstore
syntax: zmk
created: 20210811154251
modified: 20221116165428

Inline-mode transclusion applies to all zettel that are parsed in a non-trivial way, e.g. as structured textual content.
For example, textual content is assumed if the [[syntax|00001006020000#syntax]] of a zettel is ""zmk"" ([[Zettelmarkup|00001007000000]]), or ""markdown"" / ""md"" ([[Markdown|00001008010000]]).

Since this type of transclusion is at the level of [[inline-structured elements|00001007040000]], the transclude specification must be replaced with some inline-structured elements.

First, the referenced zettel is read.






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id: 00001007040324
title: Zettelmarkup: Inline-mode Transclusion
role: manual
tags: #manual #zettelmarkup #zettelstore
syntax: zmk
created: 20210811154251
modified: 20231222164501

Inline-mode transclusion applies to all zettel that are parsed in a non-trivial way, e.g. as structured textual content.
For example, textual content is assumed if the [[syntax|00001006020000#syntax]] of a zettel is ""zmk"" ([[Zettelmarkup|00001007000000]]), or ""markdown"" / ""md"" ([[Markdown|00001008010000]]).

Since this type of transclusion is at the level of [[inline-structured elements|00001007040000]], the transclude specification must be replaced with some inline-structured elements.

First, the referenced zettel is read.
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   Example: ``{{00001007040322#spin}}`` is rendered as ::{{00001007040322#spin}}::{=example}.

** Just specifying the fragment identifier will reference something in the current page.
   This is not allowed, to prevent a possible endless recursion.

* If the reference is a [[hosted or based|00001007040310#link-specifications]] link / URL to an image, that image will be rendered.

  Example: ``{{//z/00000000040001}}`` is rendered as ::{{//z/00000000040001}}::{=example}

If no inline-structured elements are found, the transclude specification is replaced by an error message.

To avoid an exploding ""transclusion bomb"", a form of a [[billion laughs attack|https://en.wikipedia.org/wiki/Billion_laughs_attack]] (also known as ""XML bomb""), the total number of transclusions / expansions is limited.
The limit can be controlled by setting the value [[''max-transclusions''|00001004020000#max-transclusions]] of the runtime configuration zettel.

=== See also
[[Full transclusion|00001007031100]] does not work inside some text, but is used for [[block-structured elements|00001007030000]].







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   Example: ``{{00001007040322#spin}}`` is rendered as ::{{00001007040322#spin}}::{=example}.

** Just specifying the fragment identifier will reference something in the current page.
   This is not allowed, to prevent a possible endless recursion.

* If the reference is a [[hosted or based|00001007040310#link-specifications]] link / URL to an image, that image will be rendered.

  Example: ``{{//z/00000000040001}}{alt=Emoji}`` is rendered as ::{{//z/00000000040001}}{alt=Emoji}::{=example}

If no inline-structured elements are found, the transclude specification is replaced by an error message.

To avoid an exploding ""transclusion bomb"", a form of a [[billion laughs attack|https://en.wikipedia.org/wiki/Billion_laughs_attack]] (also known as ""XML bomb""), the total number of transclusions / expansions is limited.
The limit can be controlled by setting the value [[''max-transclusions''|00001004020000#max-transclusions]] of the runtime configuration zettel.

=== See also
[[Full transclusion|00001007031100]] does not work inside some text, but is used for [[block-structured elements|00001007030000]].

Changes to docs/manual/00001007720300.zettel.

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id: 00001007720300
title: Query: Context Directive
role: manual
tags: #manual #search #zettelstore
syntax: zmk
created: 20230707204706
modified: 20230724153832

A context directive calculates the __context__ of a list of zettel identifier.
It starts with the keyword ''CONTEXT''.

Optionally you may specify some context details, after the keyword ''CONTEXT'', separated by space characters.
These are:

* ''BACKWARD'': search for context only though backward links,
* ''FORWARD'': search for context only through forward links,
* ''COST'', one or more space characters, and a positive integer: set the maximum __cost__ (default: 17),
* ''MAX'', one or more space characters, and a positive integer: set the maximum number of context zettel (default: 200).

If no ''BACKWARD'' and ''FORWARD'' is specified, a search for context zettel will be done though backward and forward links.

The cost of a context zettel is calculated iteratively:
* Each of the specified zettel hast a cost of one.
* A zettel found as a single folge zettel or single precursor zettel has the cost of the originating zettel, plus one.

* A zettel found as a single successor zettel or single predecessor zettel has the cost of the originating zettel, plus two.
* A zettel found via another link without being part of a [[set of zettel identifier|00001006032500]], has the cost of the originating zettel, plus three.
* A zettel which is part of a set of zettel identifier, has the cost of the originating zettel, plus one of the three choices above and multiplied with roughly a logarithmic value based on the size of the set.
* A zettel with the same tag, has the cost of the originating zettel, plus the number of zettel with the same tag (if it is less than eight), or the cost of the originating zettel plus two, multiplied by number of zettel with the same tag divided by four.



The maximum cost is only checked for all zettel that are not directly reachable from the initial, specified list of zettel.
This ensures that initial zettel that have only a highly used tag, will also produce some context zettel.

Despite its possibly complicated structure, this algorithm ensures in practice that the zettel context is a list of zettel, where the first elements are ""near"" to the specified zettel and the last elements are more ""distant"" to the specified zettel.
It also penalties zettel that acts as a ""hub"" to other zettel, to make it more likely that only relevant zettel appear on the context list.

This directive may be specified only once as a query directive.
A second occurence of ''CONTEXT'' is interpreted as a [[search expression|00001007701000]].
In most cases it is easier to adjust the maximum cost than to perform another context search, which is relatively expensive in terms of retrieving power.






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id: 00001007720300
title: Query: Context Directive
role: manual
tags: #manual #search #zettelstore
syntax: zmk
created: 20230707204706
modified: 20240209191045

A context directive calculates the __context__ of a list of zettel identifier.
It starts with the keyword ''CONTEXT''.

Optionally you may specify some context details, after the keyword ''CONTEXT'', separated by space characters.
These are:
* ''FULL'': additionally search for zettel with the same tags,
* ''BACKWARD'': search for context only though backward links,
* ''FORWARD'': search for context only through forward links,
* ''COST'': one or more space characters, and a positive integer: set the maximum __cost__ (default: 17),
* ''MAX'': one or more space characters, and a positive integer: set the maximum number of context zettel (default: 200).

If no ''BACKWARD'' and ''FORWARD'' is specified, a search for context zettel will be done though backward and forward links.

The cost of a context zettel is calculated iteratively:
* Each of the specified zettel hast a cost of one.
* A zettel found as a single folge zettel or single precursor zettel has the cost of the originating zettel, plus one.
* A zettel found as a single subordinate zettel or single superior zettel has the cost of the originating zettel, plus 1.2.
* A zettel found as a single successor zettel or single predecessor zettel has the cost of the originating zettel, plus seven.
* A zettel found via another link without being part of a [[set of zettel identifier|00001006032500]], has the cost of the originating zettel, plus two.
* A zettel which is part of a set of zettel identifier, has the cost of the originating zettel, plus one of the four choices above and multiplied with roughly a linear-logarithmic value based on the size of the set.
* A zettel with the same tag, has the cost of the originating zettel, plus a linear-logarithmic number based on the number of zettel with this tag.
  If a zettel belongs to more than one tag compared with the current zettel, there is a discount of 90% per additional tag.
  This only applies if the ''FULL'' directive was specified.

The maximum cost is only checked for all zettel that are not directly reachable from the initial, specified list of zettel.
This ensures that initial zettel that have only a highly used tag, will also produce some context zettel.

Despite its possibly complicated structure, this algorithm ensures in practice that the zettel context is a list of zettel, where the first elements are ""near"" to the specified zettel and the last elements are more ""distant"" to the specified zettel.
It also penalties zettel that acts as a ""hub"" to other zettel, to make it more likely that only relevant zettel appear on the context list.

This directive may be specified only once as a query directive.
A second occurence of ''CONTEXT'' is interpreted as a [[search expression|00001007701000]].
In most cases it is easier to adjust the maximum cost than to perform another context search, which is relatively expensive in terms of retrieving effort.

Changes to docs/manual/00001007770000.zettel.

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id: 00001007770000
title: Query: Action List
role: manual
tags: #manual #search #zettelstore
syntax: zmk
created: 20230707205246
modified: 20230707205532

With a [[list of zettel identifier|00001007710000]], a [[query directives|00001007720000]], or a [[search expression|00001007701000]], a list of zettel is selected.
__Actions__ allow to modify this list to a certain degree.

Which actions are allowed depends on the context.
However, actions are further separated into __parameter action__ and __aggregate actions__.
A parameter action just sets a parameter for an aggregate action.
An aggregate action transforms the list of selected zettel into a different, aggregate form.
Only the first aggregate form is executed, following aggregate actions are ignored.

In most contexts, valid actions include the name of metadata keys, at least of type [[Word|00001006035500]], [[WordSet|00001006036000]], or [[TagSet|00001006034000]].









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id: 00001007770000
title: Query: Action List
role: manual
tags: #manual #search #zettelstore
syntax: zmk
created: 20230707205246
modified: 20240219161813

With a [[list of zettel identifier|00001007710000]], a [[query directives|00001007720000]], or a [[search expression|00001007701000]], a list of zettel is selected.
__Actions__ allow to modify this list to a certain degree.

Which actions are allowed depends on the context.
However, actions are further separated into __parameter action__ and __aggregate actions__.
A parameter action just sets a parameter for an aggregate action.
An aggregate action transforms the list of selected zettel into a different, aggregate form.
Only the first aggregate form is executed, following aggregate actions are ignored.

In most contexts, valid actions include the name of metadata keys, at least of type [[Word|00001006035500]] or [[TagSet|00001006034000]].

To allow some kind of backward compatibility, an action written in uppercase letters that leads to an empty result list, will be ignored.
In this case the list of selected zettel is returned.

Changes to docs/manual/00001007780000.zettel.

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id: 00001007780000
title: Formal syntax of query expressions
role: manual
tags: #manual #reference #search #zettelstore
syntax: zmk
created: 20220810144539
modified: 20230731160413

```
QueryExpression   := ZettelList? QueryDirective* SearchExpression ActionExpression?
ZettelList        := (ZID (SPACE+ ZID)*).
ZID               := '0'+ ('1' .. '9'') DIGIT*
                   | ('1' .. '9') DIGIT*.
QueryDirective    := ContextDirective
                   | IdentDirective
                   | ItemsDirective
                   | UnlinkedDirective.
ContextDirective  := "CONTEXT" (SPACE+ ContextDetail)*.
ContextDetail     := "BACKWARD"

                   | "FORWARD"
                   | "COST" SPACE+ PosInt
                   | "MAX" SPACE+ PosInt.
IdentDirective    := IDENT.
ItemsDirective    := ITEMS.
UnlinkedDirective := UNLINKED (SPACE+ PHRASE SPACE+ Word)*.
SearchExpression  := SearchTerm (SPACE+ SearchTerm)*.






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id: 00001007780000
title: Formal syntax of query expressions
role: manual
tags: #manual #reference #search #zettelstore
syntax: zmk
created: 20220810144539
modified: 20240219155949

```
QueryExpression   := ZettelList? QueryDirective* SearchExpression ActionExpression?
ZettelList        := (ZID (SPACE+ ZID)*).
ZID               := '0'+ ('1' .. '9'') DIGIT*
                   | ('1' .. '9') DIGIT*.
QueryDirective    := ContextDirective
                   | IdentDirective
                   | ItemsDirective
                   | UnlinkedDirective.
ContextDirective  := "CONTEXT" (SPACE+ ContextDetail)*.
ContextDetail     := "FULL"
                   | "BACKWARD"
                   | "FORWARD"
                   | "COST" SPACE+ PosInt
                   | "MAX" SPACE+ PosInt.
IdentDirective    := IDENT.
ItemsDirective    := ITEMS.
UnlinkedDirective := UNLINKED (SPACE+ PHRASE SPACE+ Word)*.
SearchExpression  := SearchTerm (SPACE+ SearchTerm)*.
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SearchOperator    := '!'
                   | ('!')? ('~' | ':' | '[' | '}').
ExistOperator     := '?'
                   | '!' '?'.
PosInt            := '0'
                   | ('1' .. '9') DIGIT*.
ActionExpression  := '|' (Word (SPACE+ Word)*)?










Word              := NO-SPACE NO-SPACE*
```







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SearchOperator    := '!'
                   | ('!')? ('~' | ':' | '[' | '}').
ExistOperator     := '?'
                   | '!' '?'.
PosInt            := '0'
                   | ('1' .. '9') DIGIT*.
ActionExpression  := '|' (Word (SPACE+ Word)*)?
Action            := Word
                   | 'ATOM'
                   | 'KEYS'
                   | 'N' NO-SPACE*
                   | 'MAX' PosInt
                   | 'MIN' PosInt
                   | 'REDIRECT'
                   | 'REINDEX'
                   | 'RSS'
                   | 'TITLE' (SPACE Word)* .
Word              := NO-SPACE NO-SPACE*
```

Changes to docs/manual/00001007790000.zettel.

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id: 00001007790000
title: Useful query expressions
role: manual
tags: #example #manual #search #zettelstore
syntax: zmk
created: 20220810144539
modified: 20230706155134

|= Query Expression |= Meaning
| [[query:role:configuration]] | Zettel that contains some configuration data for the Zettelstore
| [[query:ORDER REVERSE created LIMIT 40]] | 40 recently created zettel
| [[query:ORDER REVERSE published LIMIT 40]] | 40 recently updated zettel
| [[query:PICK 40]] | 40 random zettel, ordered by zettel identifier
| [[query:dead?]] | Zettel with invalid / dead links
| [[query:backward!? precursor!?]] | Zettel that are not referenced by other zettel
| [[query:tags!?]] | Zettel without tags
| [[query:expire? ORDER expire]] | Zettel with an expire date, ordered from the nearest to the latest
| [[query:00001007700000 CONTEXT]] | Zettel within the context of the [[given zettel|00001007700000]]







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id: 00001007790000
title: Useful query expressions
role: manual
tags: #example #manual #search #zettelstore
syntax: zmk
created: 20220810144539
modified: 20240216003702

|= Query Expression |= Meaning
| [[query:role:configuration]] | Zettel that contains some configuration data for the Zettelstore
| [[query:ORDER REVERSE created LIMIT 40]] | 40 recently created zettel
| [[query:ORDER REVERSE published LIMIT 40]] | 40 recently updated zettel
| [[query:PICK 40]] | 40 random zettel, ordered by zettel identifier
| [[query:dead?]] | Zettel with invalid / dead links
| [[query:backward!? precursor!?]] | Zettel that are not referenced by other zettel
| [[query:tags!?]] | Zettel without tags
| [[query:expire? ORDER expire]] | Zettel with an expire date, ordered from the nearest to the latest
| [[query:00001007700000 CONTEXT]] | Zettel within the context of the [[given zettel|00001007700000]]
| [[query:PICK 1 | REDIRECT]] | Redirect to a random zettel

Changes to docs/manual/00001007800000.zettel.

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id: 00001007800000
title: Zettelmarkup: Summary of Formatting Characters
role: manual
tags: #manual #reference #zettelmarkup #zettelstore
syntax: zmk

modified: 20220810095559

The following table gives an overview about the use of all characters that begin a markup element.

|= Character :|= [[Blocks|00001007030000]] <|= [[Inlines|00001007040000]] <
| ''!''  | (free) | (free)
| ''"''  | [[Verse block|00001007030700]] | [[Short inline quote|00001007040100]]
| ''#''  | [[Ordered list|00001007030200]] | [[Tag|00001007040000]]
| ''$''  | (reserved) | (reserved)
| ''%''  | [[Comment block|00001007030900]] | [[Comment|00001007040000]]
| ''&''  | (free) | [[Entity|00001007040000]]
| ''\'''  | (free)  | [[Computer input|00001007040200]]
| ''(''  | (free) | (free)
| '')''  | (free) | (free)
| ''*''  | [[Unordered list|00001007030200]] | [[strongly emphasized text|00001007040100]]





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id: 00001007800000
title: Zettelmarkup: Summary of Formatting Characters
role: manual
tags: #manual #reference #zettelmarkup #zettelstore
syntax: zmk
created: 20220805150154
modified: 20231113191330

The following table gives an overview about the use of all characters that begin a markup element.

|= Character :|= [[Blocks|00001007030000]] <|= [[Inlines|00001007040000]] <
| ''!''  | (free) | (free)
| ''"''  | [[Verse block|00001007030700]] | [[Short inline quote|00001007040100]]
| ''#''  | [[Ordered list|00001007030200]] | [[marked / highlighted text|00001007040100]]
| ''$''  | (reserved) | (reserved)
| ''%''  | [[Comment block|00001007030900]] | [[Comment|00001007040000]]
| ''&''  | (free) | [[Entity|00001007040000]]
| ''\'''  | (free)  | [[Computer input|00001007040200]]
| ''(''  | (free) | (free)
| '')''  | (free) | (free)
| ''*''  | [[Unordered list|00001007030200]] | [[strongly emphasized text|00001007040100]]

Changes to docs/manual/00001007903000.zettel.

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id: 00001007903000
title: Zettelmarkup: First Steps
role: manual
tags: #manual #tutorial #zettelmarkup #zettelstore
syntax: zmk
created: 20220810182917
modified: 20220926183359

[[Zettelmarkup|00001007000000]] allows you to leave your text as it is, at least in many situations.
Some characters have a special meaning, but you have to enter them is a defined way to see a visible change.
Zettelmarkup is designed to be used for zettel, which are relatively short.
It allows to produce longer texts, but you should probably use a different tool, if you want to produce an scientific paper, to name an example.

=== Paragraphs






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id: 00001007903000
title: Zettelmarkup: First Steps
role: manual
tags: #manual #tutorial #zettelmarkup #zettelstore
syntax: zmk
created: 20220810182917
modified: 20231201135849

[[Zettelmarkup|00001007000000]] allows you to leave your text as it is, at least in many situations.
Some characters have a special meaning, but you have to enter them is a defined way to see a visible change.
Zettelmarkup is designed to be used for zettel, which are relatively short.
It allows to produce longer texts, but you should probably use a different tool, if you want to produce an scientific paper, to name an example.

=== Paragraphs
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| ''An __emphasized__ word'' | An __emphasized__ word | Put two underscore characters before and after the text you want to emphasize
| ''Someone uses **bold** text'' | Someone uses **bold** text | Put two asterisks before and after the text you want to see bold
| ''He says: ""I love you!""'' | Her says: ""I love you!"" | Put two quotation mark characters before and after the text you want to quote.

You probably see a principle.

One nice thing about the quotation mark characters: they are rendered according to the current language.
Examples: ""english""{lang=en}, ""french""{lang=fr}, ""german""{lang=de}, ""finnish""{lang=fi}.
You will see later, how to change the current language.

=== Lists
Quite often, text consists of lists.
Zettelmarkup supports different types of lists.
The most important lists are:
* Unnumbered lists,







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| ''An __emphasized__ word'' | An __emphasized__ word | Put two underscore characters before and after the text you want to emphasize
| ''Someone uses **bold** text'' | Someone uses **bold** text | Put two asterisks before and after the text you want to see bold
| ''He says: ""I love you!""'' | Her says: ""I love you!"" | Put two quotation mark characters before and after the text you want to quote.

You probably see a principle.

One nice thing about the quotation mark characters: they are rendered according to the current language.
Examples: ""english""{lang=en}, ""french""{lang=fr}, ""german""{lang=de}.
You will see later, how to change the current language.

=== Lists
Quite often, text consists of lists.
Zettelmarkup supports different types of lists.
The most important lists are:
* Unnumbered lists,

Changes to docs/manual/00001007990000.zettel.

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id: 00001007990000
title: Zettelmarkup: Cheat Sheet
role: manual
tags: #manual #reference #zettelmarkup
syntax: zmk
created: 20221209191905
modified: 20221209193310

=== Overview
This Zettelmarkup cheat sheet provides a quick overview of many Zettelmarkup elements.
It can not cover any special case.
If you need more information about any of these elements, please refer to the detailed description.

=== Basic Syntax
|[[Text formatting|00001007040100]]|''__italic text__'' &rarr; __italic text__, ''**bold text**'' &rarr; **bold text**, ''""quoted text""'' &rarr; ""quoted text""
|[[Text editing|00001007040100]]|''>>inserted text>>'' &rarr; >>inserted text>>, ''~~deleted text~~'' &rarr; ~~deleted text~~
|[[Text literal formatting|00001007040200]]|''\'\'entered text\'\''' &rarr; ''entered text'', ''``source code``'' &rarr; ``source code``, ''==text output=='' &rarr; ==text output==
|[[Superscript, subscript|00001007040100]]|''m^^2^^'' &rarr; m^^2^^, ''H,,2,,O'' &rarr; H,,2,,O
|[[Links to other zettel|00001007040310]]|''[[Link text|00001007990000]]'' &rarr; [[Link text|00001007990000]]
|[[Links to external resources|00001007040310]]|''[[Zettelstore|https://zettelstore.de]]'' &rarr; [[Zettelstore|https://zettelstore.de]]
|[[Embed an image|00001007040322]]|''{{Image text|00000000040001}}'' &rarr; {{Image text|00000000040001}}
|[[Embed content of first paragraph|00001007040324]]|''{{00001007990000}}'' &rarr; {{00001007990000}}






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id: 00001007990000
title: Zettelmarkup: Cheat Sheet
role: manual
tags: #manual #reference #zettelmarkup
syntax: zmk
created: 20221209191905
modified: 20231201140000

=== Overview
This Zettelmarkup cheat sheet provides a quick overview of many Zettelmarkup elements.
It can not cover any special case.
If you need more information about any of these elements, please refer to the detailed description.

=== Basic Syntax
|[[Text formatting|00001007040100]]|''__italic text__'' &rarr; __italic text__, ''**bold text**'' &rarr; **bold text**, ''""quoted text""'' &rarr; ""quoted text"", ''##marked text##'' &rarr; ##marked text##
|[[Text editing|00001007040100]]|''>>inserted text>>'' &rarr; >>inserted text>>, ''~~deleted text~~'' &rarr; ~~deleted text~~
|[[Text literal formatting|00001007040200]]|''\'\'entered text\'\''' &rarr; ''entered text'', ''``source code``'' &rarr; ``source code``, ''==text output=='' &rarr; ==text output==
|[[Superscript, subscript|00001007040100]]|''m^^2^^'' &rarr; m^^2^^, ''H,,2,,O'' &rarr; H,,2,,O
|[[Links to other zettel|00001007040310]]|''[[Link text|00001007990000]]'' &rarr; [[Link text|00001007990000]]
|[[Links to external resources|00001007040310]]|''[[Zettelstore|https://zettelstore.de]]'' &rarr; [[Zettelstore|https://zettelstore.de]]
|[[Embed an image|00001007040322]]|''{{Image text|00000000040001}}'' &rarr; {{Image text|00000000040001}}
|[[Embed content of first paragraph|00001007040324]]|''{{00001007990000}}'' &rarr; {{00001007990000}}

Changes to docs/manual/00001008000000.zettel.

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id: 00001008000000
title: Other Markup Languages
role: manual
tags: #manual #zettelstore
syntax: zmk
created: 20210126175300
modified: 20230529223634

[[Zettelmarkup|00001007000000]] is not the only markup language you can use to define your content.
Zettelstore is quite agnostic with respect to markup languages.
Of course, Zettelmarkup plays an important role.
However, with the exception of zettel titles, you can use any (markup) language that is supported:

* CSS






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id: 00001008000000
title: Other Markup Languages
role: manual
tags: #manual #zettelstore
syntax: zmk
created: 20210126175300
modified: 20240413160242

[[Zettelmarkup|00001007000000]] is not the only markup language you can use to define your content.
Zettelstore is quite agnostic with respect to markup languages.
Of course, Zettelmarkup plays an important role.
However, with the exception of zettel titles, you can use any (markup) language that is supported:

* CSS
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: Only the metadata of a zettel is ""parsed"".
  Useful for displaying the full metadata.
  The [[runtime configuration zettel|00000000000100]] uses this syntax.
  The zettel content is ignored.
; [!svg|''svg'']
: [[Scalable Vector Graphics|https://www.w3.org/TR/SVG2/]].
; [!sxn|''sxn'']
: S-Expressions, as implemented by [[sx|https://zettelstore.de/sx]].
  Often used to specify templates when rendering a zettel as HTML for the [[web user interface|00001014000000]] (with the help of sxhtml]).
; [!text|''text''], [!plain|''plain''], [!txt|''txt'']
: Plain text that must not be interpreted further.
; [!zmk|''zmk'']
: [[Zettelmarkup|00001007000000]].

The actual values are also listed in a zettel named [[Zettelstore Supported Parser|00000000000092]].

If you specify something else, your content will be interpreted as plain text.







|









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: Only the metadata of a zettel is ""parsed"".
  Useful for displaying the full metadata.
  The [[runtime configuration zettel|00000000000100]] uses this syntax.
  The zettel content is ignored.
; [!svg|''svg'']
: [[Scalable Vector Graphics|https://www.w3.org/TR/SVG2/]].
; [!sxn|''sxn'']
: S-Expressions, as implemented by [[Sx|https://t73f.de/r/sx]].
  Often used to specify templates when rendering a zettel as HTML for the [[web user interface|00001014000000]] (with the help of sxhtml]).
; [!text|''text''], [!plain|''plain''], [!txt|''txt'']
: Plain text that must not be interpreted further.
; [!zmk|''zmk'']
: [[Zettelmarkup|00001007000000]].

The actual values are also listed in a zettel named [[Zettelstore Supported Parser|00000000000092]].

If you specify something else, your content will be interpreted as plain text.

Changes to docs/manual/00001012000000.zettel.

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id: 00001012000000
title: API
role: manual
tags: #api #manual #zettelstore
syntax: zmk
created: 20210126175322
modified: 20230928183244

The API (short for ""**A**pplication **P**rogramming **I**nterface"") is the primary way to communicate with a running Zettelstore.
Most integration with other systems and services is done through the API.
The [[web user interface|00001014000000]] is just an alternative, secondary way of interacting with a Zettelstore.

=== Background
The API is HTTP-based and uses plain text and [[symbolic expressions|00001012930000]] as its main encoding formats for exchanging messages between a Zettelstore and its client software.

There is an [[overview zettel|00001012920000]] that shows the structure of the endpoints used by the API and gives an indication about its use.

=== Authentication
If [[authentication is enabled|00001010040100]], most API calls must include an [[access token|00001010040700]] that proves the identity of the caller.
* [[Authenticate an user|00001012050200]] to obtain an access token
* [[Renew an access token|00001012050400]] without costly re-authentication
* [[Provide an access token|00001012050600]] when doing an API call

=== Zettel lists
* [[List all zettel|00001012051200]]
* [[Query the list of all zettel|00001012051400]]
* [[Determine a tag zettel|00001012051600]]


=== Working with zettel
* [[Create a new zettel|00001012053200]]
* [[Retrieve metadata and content of an existing zettel|00001012053300]]
* [[Retrieve metadata of an existing zettel|00001012053400]]
* [[Retrieve evaluated metadata and content of an existing zettel in various encodings|00001012053500]]
* [[Retrieve parsed metadata and content of an existing zettel in various encodings|00001012053600]]






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id: 00001012000000
title: API
role: manual
tags: #api #manual #zettelstore
syntax: zmk
created: 20210126175322
modified: 20231128183617

The API (short for ""**A**pplication **P**rogramming **I**nterface"") is the primary way to communicate with a running Zettelstore.
Most integration with other systems and services is done through the API.
The [[web user interface|00001014000000]] is just an alternative, secondary way of interacting with a Zettelstore.

=== Background
The API is HTTP-based and uses plain text and [[symbolic expressions|00001012930000]] as its main encoding formats for exchanging messages between a Zettelstore and its client software.

There is an [[overview zettel|00001012920000]] that shows the structure of the endpoints used by the API and gives an indication about its use.

=== Authentication
If [[authentication is enabled|00001010040100]], most API calls must include an [[access token|00001010040700]] that proves the identity of the caller.
* [[Authenticate an user|00001012050200]] to obtain an access token
* [[Renew an access token|00001012050400]] without costly re-authentication
* [[Provide an access token|00001012050600]] when doing an API call

=== Zettel lists
* [[List all zettel|00001012051200]]
* [[Query the list of all zettel|00001012051400]]
* [[Determine a tag zettel|00001012051600]]
* [[Determine a role zettel|00001012051800]]

=== Working with zettel
* [[Create a new zettel|00001012053200]]
* [[Retrieve metadata and content of an existing zettel|00001012053300]]
* [[Retrieve metadata of an existing zettel|00001012053400]]
* [[Retrieve evaluated metadata and content of an existing zettel in various encodings|00001012053500]]
* [[Retrieve parsed metadata and content of an existing zettel in various encodings|00001012053600]]

Changes to docs/manual/00001012051400.zettel.

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id: 00001012051400
title: API: Query the list of all zettel
role: manual
tags: #api #manual #zettelstore
syntax: zmk
created: 20220912111111
modified: 20231023162927
precursor: 00001012051200

The [[endpoint|00001012920000]] ''/z'' also allows you to filter the list of all zettel[^If [[authentication is enabled|00001010040100]], you must include the a valid [[access token|00001012050200]] in the ''Authorization'' header] and optionally to provide some actions.

A [[query|00001007700000]] is an optional [[search expression|00001007700000#search-expression]], together with an optional [[list of actions|00001007700000#action-list]] (described below).
An empty search expression will select all zettel.
An empty list of action, or no valid action, returns the list of all selected zettel metadata.






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id: 00001012051400
title: API: Query the list of all zettel
role: manual
tags: #api #manual #zettelstore
syntax: zmk
created: 20220912111111
modified: 20240219161831
precursor: 00001012051200

The [[endpoint|00001012920000]] ''/z'' also allows you to filter the list of all zettel[^If [[authentication is enabled|00001010040100]], you must include the a valid [[access token|00001012050200]] in the ''Authorization'' header] and optionally to provide some actions.

A [[query|00001007700000]] is an optional [[search expression|00001007700000#search-expression]], together with an optional [[list of actions|00001007700000#action-list]] (described below).
An empty search expression will select all zettel.
An empty list of action, or no valid action, returns the list of all selected zettel metadata.
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The following actions are supported:
; ''MINn'' (parameter)
: Emit only those values with at least __n__ aggregated values.
  __n__ must be a positive integer, ''MIN'' must be given in upper-case letters.
; ''MAXn'' (parameter)
: Emit only those values with at most __n__ aggregated values.
  __n__ must be a positive integer, ''MAX'' must be given in upper-case letters.



; ''REINDEX'' (aggregate)
: Updates the internal search index for the selected zettel, roughly similar to the [[refresh|00001012080500]] API call.
  It is not really an aggregate, since it is used only for its side effect.
  It is allowed to specify another aggregate.
; Any [[metadata key|00001006020000]] of type [[Word|00001006035500]], [[WordSet|00001006036000]], or [[TagSet|00001006034000]] (aggregates)
: Emit an aggregate of the given metadata key.
  The key can be given in any letter case.


Only the first aggregate action will be executed.




=== HTTP Status codes
; ''200''
: Query was successful.
; ''204''
: Query was successful, but results in no content.
  Most likely, you specified no appropriate aggregator.


; ''400''
: Request was not valid. 
  There are several reasons for this.
  Maybe the access bearer token was not valid, or you forgot to specify a valid query.







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The following actions are supported:
; ''MINn'' (parameter)
: Emit only those values with at least __n__ aggregated values.
  __n__ must be a positive integer, ''MIN'' must be given in upper-case letters.
; ''MAXn'' (parameter)
: Emit only those values with at most __n__ aggregated values.
  __n__ must be a positive integer, ''MAX'' must be given in upper-case letters.
; ''REDIRECT'' (aggregate)
: Performs a HTTP redirect to the first selected zettel, using HTTP status code 302.
  The zettel identifier is in the body.
; ''REINDEX'' (aggregate)
: Updates the internal search index for the selected zettel, roughly similar to the [[refresh|00001012080500]] API call.
  It is not really an aggregate, since it is used only for its side effect.
  It is allowed to specify another aggregate.
; Any [[metadata key|00001006020000]] of type [[Word|00001006035500]] or [[TagSet|00001006034000]] (aggregates)
: Emit an aggregate of the given metadata key.
  The key can be given in any letter case.

First, ''REINDEX'' actions are executed, then ''REDIRECT''.
If no ''REDIRECT'' was found the first other aggregate action will be executed.

To allow some kind of backward compatibility, an action written in uppercase letters that leads to an empty result list, will be ignored.
In this case the list of selected zettel is returned.

=== HTTP Status codes
; ''200''
: Query was successful.
; ''204''
: Query was successful, but results in no content.
  Most likely, you specified no appropriate aggregator.
; ''302''
: Query was successful, redirect to first zettel in list.
; ''400''
: Request was not valid. 
  There are several reasons for this.
  Maybe the access bearer token was not valid, or you forgot to specify a valid query.

Added docs/manual/00001012051800.zettel.















































































































































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id: 00001012051800
title: API: Determine a role zettel
role: manual
tags: #api #manual #zettelstore
syntax: zmk
created: 20231128183917
modified: 20231128184701

The [[endpoint|00001012920000]] ''/z'' also allows you to determine a ""role zettel"", i.e. a zettel that documents a given role.

The query parameter ""''role''"" allows you to specify a value that is interpreted as the name of a role.
Zettelstore tries to determine the corresponding role zettel.

A role zettel is a zettel with the [[''role''|00001006020100]] value ""role"" and a title that names the role.
If there is more than one zettel that qualifies, the zettel with the highest zettel identifier is used.

For example, if you want to determine the role zettel for the role ""manual"", your request will be:
```sh
# curl -i 'http://127.0.0.1:23123/z?role=manual'
HTTP/1.1 302 Found
Content-Type: text/plain; charset=utf-8
Location: /z/20231128184200
Content-Length: 14

20231128184200
```

If there is a corresponding role zettel, the response will use the HTTP status code 302 (""Found""), the HTTP response header ''Location'' will contain the URL of the role zettel.
Its zettel identifier will be returned in the HTTP response body.

If you specified some more query parameter, these will be part of the URL in the response header ''Location'':

```sh
# curl -i 'http://127.0.0.1:23123/z?role=manual&part=zettel'
HTTP/1.1 302 Found
Content-Type: text/plain; charset=utf-8
Location: /z/20231128184200?part=zettel
Content-Length: 14

20231128184200
```

Otherwise, if no role zettel was found, the response will use the HTTP status code 404 (""Not found"").

```sh
# curl -i 'http://127.0.0.1:23123/z?role=norole'
HTTP/1.1 404 Not Found
Content-Type: text/plain; charset=utf-8
Content-Length: 30

Role zettel not found: norole
```

To fulfill this service, Zettelstore will evaluate internally the query ''role:role title=ROLE'', there ''ROLE'' is the actual role.

Of course, if you are only interested in the URL of the role zettel, you can make use of the HTTP ''HEAD'' method:

```sh
# curl -I 'http://127.0.0.1:23123/z?role=manual'
HTTP/1.1 302 Found
Content-Type: text/plain; charset=utf-8
Location: /z/20231128184200
Content-Length: 14
```

=== HTTP Status codes
; ''302''
: Role zettel was found.
  The HTTP header ''Location'' contains its URL, the body of the response contains its zettel identifier.
; ''404''
: No zettel for the given role was found.

Changes to docs/manual/00001012054200.zettel.

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id: 00001012054200
title: API: Update a zettel
role: manual
tags: #api #manual #zettelstore
syntax: zmk
created: 20210713150005
modified: 20230807165948

Updating metadata and content of a zettel is technically quite similar to [[creating a new zettel|00001012053200]].
In both cases you must provide the data for the new or updated zettel in the body of the HTTP request.

One difference is the endpoint.
The [[endpoint|00001012920000]] to update a zettel is ''/z/{ID}'', where ''{ID}'' is a placeholder for the [[zettel identifier|00001006050000]].
You must send a HTTP PUT request to that endpoint.

The zettel must be encoded in a [[plain|00001006000000]] format: first comes the [[metadata|00001006010000]] and the following content is separated by an empty line.
This is the same format as used by storing zettel within a [[directory box|00001006010000]].

```
# curl -X POST --data 'title: Updated Note\n\nUpdated content.' http://127.0.0.1:23123/z/00001012054200
```

=== Data input
Alternatively, you may encode the zettel as a parseable object / a [[symbolic expression|00001012930500]] by providing the query parameter ''enc=data''.
The encoding is the same as the data output encoding when you [[retrieve a zettel|00001012053300#data-output]].

The encoding for [[access rights|00001012921200]] must be given, but is ignored.






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id: 00001012054200
title: API: Update a zettel
role: manual
tags: #api #manual #zettelstore
syntax: zmk
created: 20210713150005
modified: 20231116110417

Updating metadata and content of a zettel is technically quite similar to [[creating a new zettel|00001012053200]].
In both cases you must provide the data for the new or updated zettel in the body of the HTTP request.

One difference is the endpoint.
The [[endpoint|00001012920000]] to update a zettel is ''/z/{ID}'', where ''{ID}'' is a placeholder for the [[zettel identifier|00001006050000]].
You must send a HTTP PUT request to that endpoint.

The zettel must be encoded in a [[plain|00001006000000]] format: first comes the [[metadata|00001006010000]] and the following content is separated by an empty line.
This is the same format as used by storing zettel within a [[directory box|00001006010000]].

```
# curl -X PUT --data $'title: Updated Note\n\nUpdated content.' http://127.0.0.1:23123/z/00001012054200
```

=== Data input
Alternatively, you may encode the zettel as a parseable object / a [[symbolic expression|00001012930500]] by providing the query parameter ''enc=data''.
The encoding is the same as the data output encoding when you [[retrieve a zettel|00001012053300#data-output]].

The encoding for [[access rights|00001012921200]] must be given, but is ignored.

Changes to docs/manual/00001012930500.zettel.

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id: 00001012930500
title: Syntax of Symbolic Expressions
role: manual
tags: #manual #reference #zettelstore
syntax: zmk
created: 20230403151127
modified: 20230703174218

=== Syntax of lists
A list always starts with the left parenthesis (""''(''"", U+0028) and ends with a right parenthesis (""'')''"", U+0029).
A list may contain a possibly empty sequence of elements, i.e. lists and / or atoms.

Internally, lists are composed of __cells__.
A cell allows to store two values.






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id: 00001012930500
title: Syntax of Symbolic Expressions
role: manual
tags: #manual #reference #zettelstore
syntax: zmk
created: 20230403151127
modified: 20240413160345

=== Syntax of lists
A list always starts with the left parenthesis (""''(''"", U+0028) and ends with a right parenthesis (""'')''"", U+0029).
A list may contain a possibly empty sequence of elements, i.e. lists and / or atoms.

Internally, lists are composed of __cells__.
A cell allows to store two values.
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To allow a string to contain a backslash, it also must be prefixed by one backslash.
Unicode characters with a code less than U+FF are encoded by by the sequence ""''\\xNM''"", where ''NM'' is the hex encoding of the character.
Unicode characters with a code less than U+FFFF are encoded by by the sequence ""''\\uNMOP''"", where ''NMOP'' is the hex encoding of the character.
Unicode characters with a code less than U+FFFFFF are encoded by by the sequence ""''\\UNMOPQR''"", where ''NMOPQR'' is the hex encoding of the character.
In addition, the sequence ""''\\t''"" encodes a horizontal tab (U+0009), the sequence ""''\\n''"" encodes a line feed (U+000A).

=== See also
* Currently, Zettelstore uses [[sx|https://zettelstore.de/sx]] (""Symbolic eXPression Framework"") to implement symbolic expression.
  The project page might contain additional information about the full syntax.

  Zettelstore only uses lists, numbers, string, and symbols to represent zettel.







|



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To allow a string to contain a backslash, it also must be prefixed by one backslash.
Unicode characters with a code less than U+FF are encoded by by the sequence ""''\\xNM''"", where ''NM'' is the hex encoding of the character.
Unicode characters with a code less than U+FFFF are encoded by by the sequence ""''\\uNMOP''"", where ''NMOP'' is the hex encoding of the character.
Unicode characters with a code less than U+FFFFFF are encoded by by the sequence ""''\\UNMOPQR''"", where ''NMOPQR'' is the hex encoding of the character.
In addition, the sequence ""''\\t''"" encodes a horizontal tab (U+0009), the sequence ""''\\n''"" encodes a line feed (U+000A).

=== See also
* Currently, Zettelstore uses [[Sx|https://t73f.de/r/sx]] (""Symbolic eXpression framework"") to implement symbolic expressions.
  The project page might contain additional information about the full syntax.

  Zettelstore only uses lists, numbers, string, and symbols to represent zettel.

Changes to docs/manual/00001012931000.zettel.

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id: 00001012931000
title: Encoding of Sz
role: manual
tags: #api #manual #reference #zettelstore
syntax: zmk
created: 20230403153903
modified: 20230405133249

Zettel in a [[Sz encoding|00001012920516]] are represented as a [[symbolic expression|00001012930000]].
To process these symbolic expressions, you need to know, how a specific part of a zettel is represented by a symbolic expression.

Basically, each part of a zettel is represented as a list, often a nested list.
The first element of that list is always an unique symbol, which denotes that part.
The meaning / semantic of all other elements depend on that symbol.






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id: 00001012931000
title: Encoding of Sz
role: manual
tags: #api #manual #reference #zettelstore
syntax: zmk
created: 20230403153903
modified: 20240123120319

Zettel in a [[Sz encoding|00001012920516]] are represented as a [[symbolic expression|00001012930000]].
To process these symbolic expressions, you need to know, how a specific part of a zettel is represented by a symbolic expression.

Basically, each part of a zettel is represented as a list, often a nested list.
The first element of that list is always an unique symbol, which denotes that part.
The meaning / semantic of all other elements depend on that symbol.
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Metadata is represented by a list, where the first element is the symbol ''META''.
Following elements represent each metadatum[^""Metadatum"" is used as the singular form of metadata.] of a zettel in standard order.

Standard order is: [[Title|00001006020000#title]], [[Role|00001006020000#role]], [[Tags|00001006020000#tags]], [[Syntax|00001006020000#syntax]], all other [[keys|00001006020000]] in alphabetic order.

:::syntax
__Metadata__ **=** ''(META'' [[__Metadatum__|00001012931200]] __Metadatum__ &hellip; __Metadatum__ '')''.
:::
=== Content

Zettel content is represented by a block.
:::syntax
__Content__ **=** [[__Block__|#block]].
:::

==== Block
A block is represented by a list with the symbol ''BLOCK'' as the first element.
All following elements represent a nested [[block-structured element|00001007030000]].

:::syntax
[!block|__Block__] **=** ''(BLOCK'' [[__BlockElement__|00001012931400]] __BlockElement__ &hellip; __BlockElement__ '')''.
:::

==== Inline
Both block-structured elements and some metadata values may contain [[inline-structured elements|00001007040000]].
Similar, inline-structured elements are represented as follows:

:::syntax
__Inline__ **=** ''(INLINE'' [[__InlineElement__|00001012931600]] __InlineElement__ &hellip; __InlineElement__ '')''.
:::

==== Attribute
[[Attributes|00001007050000]] may be specified for both block- and inline- structured elements.
Attributes are represented by the following schema.
Please note, the the symbol ''quote'' is lower-case by intention.

:::syntax
__Attribute__ **=** ''('' **[** ''quote'' ''('' [[__AttributeKeyValue__|00001012931800]] __AttributeKeyValue__ &hellip; __AttributeKeyValue__ '')'' **]** ')'.
:::

Either, there are no attributes.
These are specified by the empty list ''()''.
Or there are attributes.
In this case, the first element of the list must be the symbol ''quote'': ''(quote'' ''('' A,,1,, A,,2,, &hellip; A,,n,, '')'''')''.








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Metadata is represented by a list, where the first element is the symbol ''META''.
Following elements represent each metadatum[^""Metadatum"" is used as the singular form of metadata.] of a zettel in standard order.

Standard order is: [[Title|00001006020000#title]], [[Role|00001006020000#role]], [[Tags|00001006020000#tags]], [[Syntax|00001006020000#syntax]], all other [[keys|00001006020000]] in alphabetic order.

:::syntax
__Metadata__ **=** ''(META'' [[__Metadatum__|00001012931200]] &hellip; '')''.
:::
=== Content

Zettel content is represented by a block.
:::syntax
__Content__ **=** [[__Block__|#block]].
:::

==== Block
A block is represented by a list with the symbol ''BLOCK'' as the first element.
All following elements represent a nested [[block-structured element|00001007030000]].

:::syntax
[!block|__Block__] **=** ''(BLOCK'' [[__BlockElement__|00001012931400]] &hellip; '')''.
:::

==== Inline
Both block-structured elements and some metadata values may contain [[inline-structured elements|00001007040000]].
Similar, inline-structured elements are represented as follows:

:::syntax
__Inline__ **=** ''(INLINE'' [[__InlineElement__|00001012931600]] &hellip; '')''.
:::

==== Attribute
[[Attributes|00001007050000]] may be specified for both block- and inline- structured elements.
Attributes are represented by the following schema.


:::syntax
__Attribute__ **=** ''('' **[** [[__AttributeKeyValue__|00001012931800]] &hellip; **]** ')'.
:::

Either, there are no attributes.
These are specified by the empty list ''()''.
Or there are attributes.
In this case, the first element of the list must be the symbol ''quote'': ''(quote'' ''('' A,,1,, A,,2,, &hellip; A,,n,, '')'''')''.

Changes to docs/manual/00001012931200.zettel.

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id: 00001012931200
title: Encoding of Sz Metadata
role: manual
tags: #api #manual #reference #zettelstore
syntax: zmk
created: 20230403161618
modified: 20230405121932

A single metadata (""metadatum"") is represented by a triple: a symbol representing the type, a symbol representing the key, and either a string or a list that represent the value.

The key symbol must be ""quoted"", i.e. for the key ""title"": ''(quote title)''.
This property may be relaxed in future versions of the Zettelstore.

The symbol depends on the [[metadata key type|00001006030000]].
The value also depends somehow on the key type: a set of values is represented as a list, all other values are represented by a string, even if it is a number.

The following table maps key types to symbols and to the type of the value representation.

|=Key Type<| Symbol<| Value<
| [[Credential|00001006031000]] | ''CREDENTIAL'' | string
| [[EString|00001006031500]] | ''EMPTY-STRING'' | string
| [[Identifier|00001006032000]] | ''ZID'' | string
| [[IdentifierSet|00001006032500]] | ''ZID-SET'' | list
| [[Number|00001006033000]] | ''NUMBER'' | string
| [[String|00001006033500]] | ''STRING'' | string
| [[TagSet|00001006034000]] | ''TAG-SET'' | list
| [[Timestamp|00001006034500]] | ''TIMESTAMP'' | string
| [[URL|00001006035000]] | ''URL'' | string
| [[Word|00001006035500]] | ''WORD'' | string
| [[WordSet|00001006036000]] | ''WORD-SET'' | list
| [[Zettelmarkup|00001006036500]] | ''ZETTELMARKUP'' | string

If the value is represented as a list, its first element is the symbol ''list'', and all other elements are strings with the appropriate values.

:::syntax
__ListValue__ **=** ''(list'' String,,1,, String,,2,, &hellip; String,,n,, '')''.
:::

Examples:
* The title of this zettel is represented as: ''(EMPTY-STRING (quote title) "Encoding of Sz Metadata")''
* The tags of this zettel are represented as: ''(TAG-SET (quote tags) (list "#api" "#manual" "#reference" "#zettelstore"))''






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id: 00001012931200
title: Encoding of Sz Metadata
role: manual
tags: #api #manual #reference #zettelstore
syntax: zmk
created: 20230403161618
modified: 20240219161848

A single metadata (""metadatum"") is represented by a triple: a symbol representing the type, a symbol representing the key, and either a string or a list that represent the value.




The symbol depends on the [[metadata key type|00001006030000]].
The value also depends somehow on the key type: a set of values is represented as a list, all other values are represented by a string, even if it is a number.

The following table maps key types to symbols and to the type of the value representation.

|=Key Type<| Symbol<| Value<
| [[Credential|00001006031000]] | ''CREDENTIAL'' | string
| [[EString|00001006031500]] | ''EMPTY-STRING'' | string
| [[Identifier|00001006032000]] | ''ZID'' | string
| [[IdentifierSet|00001006032500]] | ''ZID-SET'' | ListValue
| [[Number|00001006033000]] | ''NUMBER'' | string
| [[String|00001006033500]] | ''STRING'' | string
| [[TagSet|00001006034000]] | ''TAG-SET'' | ListValue
| [[Timestamp|00001006034500]] | ''TIMESTAMP'' | string
| [[URL|00001006035000]] | ''URL'' | string
| [[Word|00001006035500]] | ''WORD'' | string

| [[Zettelmarkup|00001006036500]] | ''ZETTELMARKUP'' | string



:::syntax
__ListValue__ **=** ''('' String,,1,, String,,2,, &hellip; String,,n,, '')''.
:::

Examples:
* The title of this zettel is represented as: ''(EMPTY-STRING title "Encoding of Sz Metadata")''
* The tags of this zettel are represented as: ''(TAG-SET tags ("#api" "#manual" "#reference" "#zettelstore"))''

Changes to docs/manual/00001012931400.zettel.

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id: 00001012931400
title: Encoding of Sz Block Elements
role: manual
tags: #api #manual #reference #zettelstore
syntax: zmk
created: 20230403161803
modified: 20230405132916

=== ''PARA''
:::syntax
__Paragraph__ **=** ''(PARA'' [[__InlineElement__|00001012931600]] &hellip; '')''.
:::
A paragraph is just a list of inline elements.







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id: 00001012931400
title: Encoding of Sz Block Elements
role: manual
tags: #api #manual #reference #zettelstore
syntax: zmk
created: 20230403161803
modified: 20240123120132

=== ''PARA''
:::syntax
__Paragraph__ **=** ''(PARA'' [[__InlineElement__|00001012931600]] &hellip; '')''.
:::
A paragraph is just a list of inline elements.

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=== ''DESCRIPTION''
:::syntax
__Description__ **=** ''(DESCRIPTION'' __DescriptionTerm__ __DescriptionValues__ __DescriptionTerm__ __DescriptionValues__ &hellip; '')''.
:::
A description is a sequence of one ore more terms and values.

:::syntax
__DescriptionTerm__ **=** [[__Inline__|00001012931000#inline]].
:::
A description term is just an inline-structured value.

:::syntax
__DescriptionValues__ **=** ''(BLOCK'' [[__Block__|00001012931000#block]] &hellip; '')''.
:::
Description values are sequences of blocks.

=== ''TABLE''
:::syntax
__Table__ **=** ''(TABLE'' __TableHeader__ __TableRow__ &hellip; '')''.
:::
A table is a table header and a sequence of table rows.

:::syntax
__TableHeader__ **=** ''()'' **|** ''(list'' __TableCell__ &hellip; '')''.
:::
A table header is either the empty list or a list of table cells stating with the ''list'' symbol.

:::syntax
__TableRow__ **=** ''(list'' __TableCell__ &hellip; '')''.
:::
A table row is a list with the initial symbol ''list'', followed by table cells.

=== ''CELL'', ''CELL-*''
There are four kinds of table cells, one for each possible cell alignment.
The structure is the same for all kind.

:::syntax
__TableCell__ **=** __DefaultCell__ **|** __CenterCell__ **|** __LeftCell__ **|** __RightCell__.







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=== ''DESCRIPTION''
:::syntax
__Description__ **=** ''(DESCRIPTION'' __DescriptionTerm__ __DescriptionValues__ __DescriptionTerm__ __DescriptionValues__ &hellip; '')''.
:::
A description is a sequence of one ore more terms and values.

:::syntax
__DescriptionTerm__ **=** ''('' [[__InlineElement__|00001012931600]] &hellip; '')''.
:::
A description term is just an inline-structured value.

:::syntax
__DescriptionValues__ **=** ''(BLOCK'' [[__Block__|00001012931000#block]] &hellip; '')''.
:::
Description values are sequences of blocks.

=== ''TABLE''
:::syntax
__Table__ **=** ''(TABLE'' __TableHeader__ __TableRow__ &hellip; '')''.
:::
A table is a table header and a sequence of table rows.

:::syntax
__TableHeader__ **=** ''()'' **|** ''('' __TableCell__ &hellip; '')''.
:::
A table header is either the empty list or a list of table cells.

:::syntax
__TableRow__ **=** ''('' __TableCell__ &hellip; '')''.
:::
A table row is a list of table cells.

=== ''CELL'', ''CELL-*''
There are four kinds of table cells, one for each possible cell alignment.
The structure is the same for all kind.

:::syntax
__TableCell__ **=** __DefaultCell__ **|** __CenterCell__ **|** __LeftCell__ **|** __RightCell__.
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=== ''REGION-*''
The following lists specifies different kinds of regions.
A region treat a sequence of block elements to be belonging together in certain ways.
The have a similar structure.

:::syntax
__BlockRegion__ **=** ''(REGION-BLOCK'' [[__Attributes__|00001012931000#attribute]] [[__Block__|00001012931000#block]] [[__Inline__|00001012931000#inline]] '')''.
:::
A block region just treats the block to belong in an unspecified way.
Typically, the reason is given in the attributes.
The inline describes the block.

:::syntax
__QuoteRegion__ **=** ''(REGION-QUOTE'' [[__Attributes__|00001012931000#attribute]] [[__Block__|00001012931000#block]] [[__Inline__|00001012931000#inline]] '')''.
:::
A block region just treats the block to contain a longer quotation.
Attributes may further specify the quotation.
The inline typically describes author / source of the quotation.

:::syntax
__VerseRegion__ **=** ''(REGION-VERSE'' [[__Attributes__|00001012931000#attribute]] [[__Block__|00001012931000#block]] [[__Inline__|00001012931000#inline]] '')''.
:::
A block region just treats the block to contain a verse.
Soft line break are transformed into hard line breaks to save the structure of the verse / poem.
Attributes may further specify something.
The inline typically describes author / source of the verse.

=== ''VERBATIM-*''







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=== ''REGION-*''
The following lists specifies different kinds of regions.
A region treat a sequence of block elements to be belonging together in certain ways.
The have a similar structure.

:::syntax
__BlockRegion__ **=** ''(REGION-BLOCK'' [[__Attributes__|00001012931000#attribute]] ''('' [[__BlockElement__|00001012931400]] &hellip; '')'' [[__InlineElement__|00001012931600]] &hellip; '')''.
:::
A block region just treats the block to belong in an unspecified way.
Typically, the reason is given in the attributes.
The inline describes the block.

:::syntax
__QuoteRegion__ **=** ''(REGION-QUOTE'' [[__Attributes__|00001012931000#attribute]] ''('' [[__BlockElement__|00001012931400]] &hellip; '')'' [[__InlineElement__|00001012931600]] &hellip; '')''.
:::
A block region just treats the block to contain a longer quotation.
Attributes may further specify the quotation.
The inline typically describes author / source of the quotation.

:::syntax
__VerseRegion__ **=** ''(REGION-VERSE'' [[__Attributes__|00001012931000#attribute]] ''('' [[__BlockElement__|00001012931400]] &hellip; '')'' [[__InlineElement__|00001012931600]] &hellip; '')''.
:::
A block region just treats the block to contain a verse.
Soft line break are transformed into hard line breaks to save the structure of the verse / poem.
Attributes may further specify something.
The inline typically describes author / source of the verse.

=== ''VERBATIM-*''
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:::syntax
__ZettelVerbatim__ **=** ''(VERBATIM-ZETTEL'' [[__Attributes__|00001012931000#attribute]] String '')''.
:::
The string contains text that should be treated as (nested) zettel content.

=== ''BLOB''
:::syntax
__BLOB__ **=** ''(BLOB'' [[__Inline__|00001012931000#inline]] String,,1,, String,,2,, '')''.
:::
A BLOB contains an image in block mode.
The inline states some description.
The first string contains the syntax of the image.
The second string contains the actual image.
If the syntax is ""SVG"", then the second string contains the SVG code.
Otherwise the (binary) image data is encoded with base64.

=== ''TRANSCLUDE''
:::syntax
__Transclude__ **=** ''(TRANSCLUDE'' [[__Attributes__|00001012931000#attribute]] [[__Reference__|00001012931900]] '')''.
:::
A transclude list only occurs for a parsed zettel, but not for a evaluated zettel.
Evaluating a zettel also means that all transclusions are resolved.

__Reference__ denotes the zettel to be transcluded.







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:::syntax
__ZettelVerbatim__ **=** ''(VERBATIM-ZETTEL'' [[__Attributes__|00001012931000#attribute]] String '')''.
:::
The string contains text that should be treated as (nested) zettel content.

=== ''BLOB''
:::syntax
__BLOB__ **=** ''(BLOB'' ''('' [[__InlineElement__|00001012931600]] &hellip; '')'' String,,1,, String,,2,, '')''.
:::
A BLOB contains an image in block mode.
The inline elements states some description.
The first string contains the syntax of the image.
The second string contains the actual image.
If the syntax is ""SVG"", then the second string contains the SVG code.
Otherwise the (binary) image data is encoded with base64.

=== ''TRANSCLUDE''
:::syntax
__Transclude__ **=** ''(TRANSCLUDE'' [[__Attributes__|00001012931000#attribute]] [[__Reference__|00001012931900]] '')''.
:::
A transclude list only occurs for a parsed zettel, but not for a evaluated zettel.
Evaluating a zettel also means that all transclusions are resolved.

__Reference__ denotes the zettel to be transcluded.

Changes to docs/manual/00001012931600.zettel.

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id: 00001012931600
title: Encoding of Sz Inline Elements
role: manual
tags: #api #manual #reference #zettelstore
syntax: zmk
created: 20230403161845
modified: 20230405123222

=== ''TEXT''
:::syntax
__Text__ **=** ''(TEXT'' String '')''.
:::
Specifies the string as some text content, typically a word.







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id: 00001012931600
title: Encoding of Sz Inline Elements
role: manual
tags: #api #manual #reference #zettelstore
syntax: zmk
created: 20230403161845
modified: 20240122122448

=== ''TEXT''
:::syntax
__Text__ **=** ''(TEXT'' String '')''.
:::
Specifies the string as some text content, typically a word.

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The first string is the mark string used in the content.
The second string is the mark string transformed to a slug, i.e. transformed to lower case, remove non-ASCII characters.
The third string is the slug string, but made unique for the whole zettel.
Then follows the marked text as a sequence of __InlineElement__s.

=== ''ENDNOTE''
:::syntax
__Endnote__ **=** ''(ENDNOTE'' [[__Attributes__|00001012931000#attribute]] ''(quote'' [[__InlineElement__|00001012931600]] &hellip; '')'''')''.
:::
Specifies endnote / footnote text.

=== ''FORMAT-*''
The following lists specifies some inline text formatting.
The structure is always the same, the initial symbol denotes the actual formatting.








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The first string is the mark string used in the content.
The second string is the mark string transformed to a slug, i.e. transformed to lower case, remove non-ASCII characters.
The third string is the slug string, but made unique for the whole zettel.
Then follows the marked text as a sequence of __InlineElement__s.

=== ''ENDNOTE''
:::syntax
__Endnote__ **=** ''(ENDNOTE'' [[__Attributes__|00001012931000#attribute]] [[__InlineElement__|00001012931600]] &hellip; '')''.
:::
Specifies endnote / footnote text.

=== ''FORMAT-*''
The following lists specifies some inline text formatting.
The structure is always the same, the initial symbol denotes the actual formatting.

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The inline text should be treated as emphasized.

:::syntax
__InsertFormat__ **=** ''(FORMAT-INSERT'' [[__Attributes__|00001012931000#attribute]] [[__InlineElement__|00001012931600]] &hellip; '')''.
:::
The inline text should be treated as inserted.






:::syntax
__QuoteFormat__ **=** ''(FORMAT-QUOTE'' [[__Attributes__|00001012931000#attribute]] [[__InlineElement__|00001012931600]] &hellip; '')''.
:::
The inline text should be treated as quoted text.

:::syntax
__SpanFormat__ **=** ''(FORMAT-SPAN'' [[__Attributes__|00001012931000#attribute]] [[__InlineElement__|00001012931600]] &hellip; '')''.







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The inline text should be treated as emphasized.

:::syntax
__InsertFormat__ **=** ''(FORMAT-INSERT'' [[__Attributes__|00001012931000#attribute]] [[__InlineElement__|00001012931600]] &hellip; '')''.
:::
The inline text should be treated as inserted.

:::syntax
__MarkFormat__ **=** ''(FORMAT-MARK'' [[__Attributes__|00001012931000#attribute]] [[__InlineElement__|00001012931600]] &hellip; '')''.
:::
The inline text should be treated as highlighted for the reader (but was not important fto the original author).

:::syntax
__QuoteFormat__ **=** ''(FORMAT-QUOTE'' [[__Attributes__|00001012931000#attribute]] [[__InlineElement__|00001012931600]] &hellip; '')''.
:::
The inline text should be treated as quoted text.

:::syntax
__SpanFormat__ **=** ''(FORMAT-SPAN'' [[__Attributes__|00001012931000#attribute]] [[__InlineElement__|00001012931600]] &hellip; '')''.

Changes to docs/manual/00001012931800.zettel.

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id: 00001012931800
title: Encoding of Sz Attribute Values
role: manual
tags: #api #manual #reference #zettelstore
syntax: zmk
created: 20230403161923
modified: 20230403163701

An attribute is represented by a single cell.
The first element of the cell references the attribute key, the second value the corresponding value.

:::syntax
__AttributeKeyValue__ **=** ''('' __AttributeKey__ ''.'' __AttributeValue__ '')''.
:::

__AttributeKey__ and __AttributeValue__ are [[string values|00001012930500]].

An empty key denotes the generic attribute.

A key with the value ''"-"'' specifies the default attribute.
In this case, the attribute value is not interpreted.

Some examples:
* ''()'' represents the absence of attributes,
* ''(quote (("-" . "")))'' represent the default attribute,
* ''(quote (("-" . "") ("" . "syntax")))'' adds the generic attrribute with the value ""syntax"",
* ''(quote ())'' will also represent the absence of attribute (in a more complicated way),
* ''(quote (("lang" . "en")))'' denote the attribute key ""lang"" with a value ""en"".






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id: 00001012931800
title: Encoding of Sz Attribute Values
role: manual
tags: #api #manual #reference #zettelstore
syntax: zmk
created: 20230403161923
modified: 20240122115245

An attribute is represented by a single cell.
The first element of the cell references the attribute key, the second value the corresponding value.

:::syntax
__AttributeKeyValue__ **=** ''('' __AttributeKey__ ''.'' __AttributeValue__ '')''.
:::

__AttributeKey__ and __AttributeValue__ are [[string values|00001012930500]].

An empty key denotes the generic attribute.

A key with the value ''"-"'' specifies the default attribute.
In this case, the attribute value is not interpreted.

Some examples:
* ''()'' represents the absence of attributes,
* ''(("-" . ""))'' represent the default attribute,
* ''(("-" . "") ("" . "syntax"))'' adds the generic attribute with the value ""syntax"",

* ''(("lang" . "en"))'' denotes the attribute key ""lang"" with a value ""en"".

Changes to docs/manual/00001012931900.zettel.

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id: 00001012931900
title: Encoding of Sz Reference Values
role: manual
tags: #api #manual #reference #zettelstore
syntax: zmk
created: 20230405123046
modified: 20230405124516

A reference is encoded as the actual reference value, and a symbol describing the state of that actual reference value.

:::syntax
__Reference__ **=** ''(quote'' __ReferenceState__ String '')''.
:::
The ''quote'' is needed for internal reasons, the string contains the actual reference value.

:::syntax
__ReferenceState__ **=** ''INVALID'' **|** ''ZETTEL'' **|** ''SELF'' **|** ''FOUND'' **|** ''BROKEN'' **|** ''HOSTED'' **|** ''BASED'' **|** ''QUERY'' **|** ''EXTERNAL''.
:::

The meaning of the state symbols corresponds to that of the symbols used for the description of [[link references|00001012931600#link]].







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id: 00001012931900
title: Encoding of Sz Reference Values
role: manual
tags: #api #manual #reference #zettelstore
syntax: zmk
created: 20230405123046
modified: 20240122094720

A reference is encoded as the actual reference value, and a symbol describing the state of that actual reference value.

:::syntax
__Reference__ **=** ''('' __ReferenceState__ String '')''.
:::
The string contains the actual reference value.

:::syntax
__ReferenceState__ **=** ''INVALID'' **|** ''ZETTEL'' **|** ''SELF'' **|** ''FOUND'' **|** ''BROKEN'' **|** ''HOSTED'' **|** ''BASED'' **|** ''QUERY'' **|** ''EXTERNAL''.
:::

The meaning of the state symbols corresponds to that of the symbols used for the description of [[link references|00001012931600#link]].

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; ''FOUND''
: The reference value is a valid reference to an existing zettel.
  This value is only possible after evaluating the zettel.
; ''BROKEN''
: The reference value is a valid reference to an missing zettel.
  This value is only possible after evaluating the zettel.
; ''HOSTED''

; ''BASED''

; ''QUERY''

; ''EXTERNAL''








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; ''FOUND''
: The reference value is a valid reference to an existing zettel.
  This value is only possible after evaluating the zettel.
; ''BROKEN''
: The reference value is a valid reference to an missing zettel.
  This value is only possible after evaluating the zettel.
; ''HOSTED''
: The reference value starts with one slash character, denoting an absolute local reference.
; ''BASED''
: The reference value starts with two slash characters, denoting a local reference interpreted relative to the Zettelstore base URL.
; ''QUERY''
: The reference value contains a query expression.
; ''EXTERNAL''
: The reference value contains a full URL, referencing a resource outside of the Zettelstore server.

Changes to docs/manual/00001018000000.zettel.

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id: 00001018000000
title: Troubleshooting
role: manual
tags: #manual #zettelstore
syntax: zmk
created: 00010101000000
modified: 20221020132617

This page lists some problems and their solutions that may occur when using your Zettelstore.

=== Installation
* **Problem:** When you double-click on the Zettelstore executable icon, macOS complains that Zettelstore is an application from an unknown developer.
  Therefore, it will not start Zettelstore.
** **Solution:** Press the ''Ctrl'' key while opening the context menu of the Zettelstore executable with a right-click.





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id: 00001018000000
title: Troubleshooting
role: manual
tags: #manual #zettelstore
syntax: zmk
created: 20211027105921
modified: 20240221134749

This page lists some problems and their solutions that may occur when using your Zettelstore.

=== Installation
* **Problem:** When you double-click on the Zettelstore executable icon, macOS complains that Zettelstore is an application from an unknown developer.
  Therefore, it will not start Zettelstore.
** **Solution:** Press the ''Ctrl'' key while opening the context menu of the Zettelstore executable with a right-click.
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   The difference between these two is the missing encryption of user name / password and for the answer of the Zettelstore if you use the ''http://'' schema.
   To be secure by default, the Zettelstore will not work in an insecure environment.
** **Solution 1:** If you are sure that your communication medium is safe, even if you use the ''http:/\/'' schema (for example, you are running the Zettelstore on the same computer you are working on, or if the Zettelstore is running on a computer in your protected local network), then you could add the entry ''insecure-cookie: true'' in you [[startup configuration|00001004010000#insecure-cookie]] file.
** **Solution 2:** If you are not sure about the security of your communication medium (for example, if unknown persons might use your local network), then you should run an [[external server|00001010090100]] in front of your Zettelstore to enable the use of the ''https://'' schema.

=== Working with Zettel Files
* **Problem:** When you delete a zettel file by removing it from the ""disk"", e.g. by dropping it into the trash folder, by dragging into another folder, or by removing it from the command line, Zettelstore sometimes did not detect that change.
  If you access the zettel via Zettelstore, a fatal error is reported.
** **Explanation:** Sometimes, the operating system does not tell Zettelstore about the removed zettel.
   This occurs mostly under MacOS.
** **Solution 1:** If you are running Zettelstore in [[""simple-mode""|00001004051100]] or if you have enabled [[''expert-mode''|00001004020000#expert-mode]], you are allowed to refresh the internal data by selecting ""Refresh"" in the Web User Interface (you find it in the menu ""Lists"").
** **Solution 2:** There is an [[API|00001012080500]] call to make Zettelstore aware of this change.
** **Solution 3:** If you have an enabled [[Administrator Console|00001004100000]] you can use the command [[''refresh''|00001004101000#refresh]] to make your changes visible.
** **Solution 4:** You configure the zettel box as [[""simple""|00001004011400]].








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   The difference between these two is the missing encryption of user name / password and for the answer of the Zettelstore if you use the ''http://'' schema.
   To be secure by default, the Zettelstore will not work in an insecure environment.
** **Solution 1:** If you are sure that your communication medium is safe, even if you use the ''http:/\/'' schema (for example, you are running the Zettelstore on the same computer you are working on, or if the Zettelstore is running on a computer in your protected local network), then you could add the entry ''insecure-cookie: true'' in you [[startup configuration|00001004010000#insecure-cookie]] file.
** **Solution 2:** If you are not sure about the security of your communication medium (for example, if unknown persons might use your local network), then you should run an [[external server|00001010090100]] in front of your Zettelstore to enable the use of the ''https://'' schema.

=== Working with Zettel Files
* **Problem:** When you delete a zettel file by removing it from the ""disk"", e.g. by dropping it into the trash folder, by dragging into another folder, or by removing it from the command line, Zettelstore sometimes did not detect that change.
  If you access the zettel via Zettelstore, an error is reported.
** **Explanation:** Sometimes, the operating system does not tell Zettelstore about the removed zettel.
   This occurs mostly under MacOS.
** **Solution 1:** If you are running Zettelstore in [[""simple-mode""|00001004051100]] or if you have enabled [[''expert-mode''|00001004020000#expert-mode]], you are allowed to refresh the internal data by selecting ""Refresh"" in the Web User Interface (you find it in the menu ""Lists"").
** **Solution 2:** There is an [[API|00001012080500]] call to make Zettelstore aware of this change.
** **Solution 3:** If you have an enabled [[Administrator Console|00001004100000]] you can use the command [[''refresh''|00001004101000#refresh]] to make your changes visible.
** **Solution 4:** You configure the zettel box as [[""simple""|00001004011400]].

Added docs/manual/20231128184200.zettel.















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id: 20231128184200
title: manual
role: role
syntax: zmk
created: 20231128184200

Zettel with the role ""manual"" contain the manual of the zettelstore.

Changes to encoder/encoder.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package encoder provides a generic interface to encode the abstract syntax
// tree into some text form.
package encoder

import (
	"errors"
	"fmt"
	"io"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/zettel/meta"
)

// Encoder is an interface that allows to encode different parts of a zettel.
type Encoder interface {
	WriteZettel(io.Writer, *ast.ZettelNode, EvalMetaFunc) (int, error)








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

// Package encoder provides a generic interface to encode the abstract syntax
// tree into some text form.
package encoder

import (
	"errors"
	"fmt"
	"io"

	"t73f.de/r/zsc/api"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/zettel/meta"
)

// Encoder is an interface that allows to encode different parts of a zettel.
type Encoder interface {
	WriteZettel(io.Writer, *ast.ZettelNode, EvalMetaFunc) (int, error)
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	ErrNoWriteMeta    = errors.New("method WriteMeta is not implemented")
	ErrNoWriteContent = errors.New("method WriteContent is not implemented")
	ErrNoWriteBlocks  = errors.New("method WriteBlocks is not implemented")
	ErrNoWriteInlines = errors.New("method WriteInlines is not implemented")
)

// Create builds a new encoder with the given options.
func Create(enc api.EncodingEnum) Encoder {
	if create, ok := registry[enc]; ok {
		return create()
	}
	return nil
}

// CreateFunc produces a new encoder.
type CreateFunc func() Encoder






var registry = map[api.EncodingEnum]CreateFunc{}

// Register the encoder for later retrieval.
func Register(enc api.EncodingEnum, create CreateFunc) {
	if _, ok := registry[enc]; ok {
		panic(fmt.Sprintf("Encoder %q already registered", enc))







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	ErrNoWriteMeta    = errors.New("method WriteMeta is not implemented")
	ErrNoWriteContent = errors.New("method WriteContent is not implemented")
	ErrNoWriteBlocks  = errors.New("method WriteBlocks is not implemented")
	ErrNoWriteInlines = errors.New("method WriteInlines is not implemented")
)

// Create builds a new encoder with the given options.
func Create(enc api.EncodingEnum, params *CreateParameter) Encoder {
	if create, ok := registry[enc]; ok {
		return create(params)
	}
	return nil
}

// CreateFunc produces a new encoder.
type CreateFunc func(*CreateParameter) Encoder

// CreateParameter contains values that are needed to create an encoder.
type CreateParameter struct {
	Lang string // default language
}

var registry = map[api.EncodingEnum]CreateFunc{}

// Register the encoder for later retrieval.
func Register(enc api.EncodingEnum, create CreateFunc) {
	if _, ok := registry[enc]; ok {
		panic(fmt.Sprintf("Encoder %q already registered", enc))

Changes to encoder/encoder_blob_test.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package encoder_test

import (
	"testing"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/config"
	"zettelstore.de/z/input"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"

	_ "zettelstore.de/z/parser/blob" // Allow to use BLOB parser.
)









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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package encoder_test

import (
	"testing"

	"t73f.de/r/zsc/api"
	"t73f.de/r/zsc/input"
	"zettelstore.de/z/config"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"

	_ "zettelstore.de/z/parser/blob" // Allow to use BLOB parser.
)

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			0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x08, 0x00, 0x00, 0x00, 0x00, 0x3a, 0x7e, 0x9b,
			0x55, 0x00, 0x00, 0x00, 0x0a, 0x49, 0x44, 0x41, 0x54, 0x78, 0x9c, 0x63, 0x62, 0x00, 0x00, 0x00,
			0x06, 0x00, 0x03, 0x36, 0x37, 0x7c, 0xa8, 0x00, 0x00, 0x00, 0x00, 0x49, 0x45, 0x4e, 0x44, 0xae,
			0x42, 0x60, 0x82,
		},
		expect: expectMap{
			encoderHTML:  `<p><img alt="PNG" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAAAAAA6fptVAAAACklEQVR4nGNiAAAABgADNjd8qAAAAABJRU5ErkJggg=="></p>`,
			encoderSz:    `(BLOCK (BLOB (INLINE (TEXT "PNG")) "png" "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAAAAAA6fptVAAAACklEQVR4nGNiAAAABgADNjd8qAAAAABJRU5ErkJggg=="))`,
			encoderSHTML: `((p (img (@ (alt . "PNG") (src . "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAAAAAA6fptVAAAACklEQVR4nGNiAAAABgADNjd8qAAAAABJRU5ErkJggg==")))))`,
			encoderText:  "",
			encoderZmk:   `%% Unable to display BLOB with description 'PNG' and syntax 'png'.`,
		},
	},
}








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			0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x08, 0x00, 0x00, 0x00, 0x00, 0x3a, 0x7e, 0x9b,
			0x55, 0x00, 0x00, 0x00, 0x0a, 0x49, 0x44, 0x41, 0x54, 0x78, 0x9c, 0x63, 0x62, 0x00, 0x00, 0x00,
			0x06, 0x00, 0x03, 0x36, 0x37, 0x7c, 0xa8, 0x00, 0x00, 0x00, 0x00, 0x49, 0x45, 0x4e, 0x44, 0xae,
			0x42, 0x60, 0x82,
		},
		expect: expectMap{
			encoderHTML:  `<p><img alt="PNG" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAAAAAA6fptVAAAACklEQVR4nGNiAAAABgADNjd8qAAAAABJRU5ErkJggg=="></p>`,
			encoderSz:    `(BLOCK (BLOB ((TEXT "PNG")) "png" "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAAAAAA6fptVAAAACklEQVR4nGNiAAAABgADNjd8qAAAAABJRU5ErkJggg=="))`,
			encoderSHTML: `((p (img (@ (alt . "PNG") (src . "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAAAAAA6fptVAAAACklEQVR4nGNiAAAABgADNjd8qAAAAABJRU5ErkJggg==")))))`,
			encoderText:  "",
			encoderZmk:   `%% Unable to display BLOB with description 'PNG' and syntax 'png'.`,
		},
	},
}

Changes to encoder/encoder_block_test.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package encoder_test

var tcsBlock = []zmkTestCase{
	{
		descr: "Empty Zettelmarkup should produce near nothing",








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package encoder_test

var tcsBlock = []zmkTestCase{
	{
		descr: "Empty Zettelmarkup should produce near nothing",
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	},
	{
		descr: "Rendered block comment",
		zmk:   "%%%{-}\nRender\n%%%",
		expect: expectMap{
			encoderHTML:  "<!--\nRender\n-->\n",
			encoderMD:    "",
			encoderSz:    `(BLOCK (VERBATIM-COMMENT (quote (("-" . ""))) "Render"))`,
			encoderSHTML: "((@@@ \"Render\"))",
			encoderText:  ``,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Simple Heading",
		zmk:   `=== Top`,
		expect: expectMap{
			encoderHTML:  "<h2 id=\"top\">Top</h2>",
			encoderMD:    "# Top",
			encoderSz:    `(BLOCK (HEADING 1 () "top" "top" (INLINE (TEXT "Top"))))`,
			encoderSHTML: `((h2 (@ (id . "top")) "Top"))`,
			encoderText:  `Top`,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Simple List",
		zmk:   "* A\n* B\n* C",
		expect: expectMap{







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	},
	{
		descr: "Rendered block comment",
		zmk:   "%%%{-}\nRender\n%%%",
		expect: expectMap{
			encoderHTML:  "<!--\nRender\n-->\n",
			encoderMD:    "",
			encoderSz:    `(BLOCK (VERBATIM-COMMENT (("-" . "")) "Render"))`,
			encoderSHTML: "((@@@ \"Render\"))",
			encoderText:  ``,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Simple Heading",
		zmk:   `=== Top Job`,
		expect: expectMap{
			encoderHTML:  "<h2 id=\"top-job\">Top Job</h2>",
			encoderMD:    "# Top Job",
			encoderSz:    `(BLOCK (HEADING 1 () "top-job" "top-job" (TEXT "Top") (SPACE) (TEXT "Job")))`,
			encoderSHTML: `((h2 (@ (id . "top-job")) "Top" " " "Job"))`,
			encoderText:  `Top Job`,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Simple List",
		zmk:   "* A\n* B\n* C",
		expect: expectMap{
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	},
	{
		descr: "Thematic break with attribute",
		zmk:   `---{lang="zmk"}`,
		expect: expectMap{
			encoderHTML:  `<hr lang="zmk">`,
			encoderMD:    "---",
			encoderSz:    `(BLOCK (THEMATIC (quote (("lang" . "zmk")))))`,
			encoderSHTML: `((hr (@ (lang . "zmk"))))`,
			encoderText:  ``,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "No list after paragraph",







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	},
	{
		descr: "Thematic break with attribute",
		zmk:   `---{lang="zmk"}`,
		expect: expectMap{
			encoderHTML:  `<hr lang="zmk">`,
			encoderMD:    "---",
			encoderSz:    `(BLOCK (THEMATIC (("lang" . "zmk"))))`,
			encoderSHTML: `((hr (@ (lang . "zmk"))))`,
			encoderText:  ``,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "No list after paragraph",
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			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Simple List Quote",
		zmk:   "> ToBeOrNotToBe",
		expect: expectMap{
			encoderHTML:  "<blockquote><p>ToBeOrNotToBe</p></blockquote>",
			encoderMD:    "> ToBeOrNotToBe",
			encoderSz:    `(BLOCK (QUOTATION (INLINE (TEXT "ToBeOrNotToBe"))))`,
			encoderSHTML: `((blockquote (p "ToBeOrNotToBe")))`,
			encoderText:  "ToBeOrNotToBe",
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Simple Quote Block",
		zmk:   "<<<\nToBeOrNotToBe\n<<< Romeo",
		expect: expectMap{
			encoderHTML:  "<blockquote><p>ToBeOrNotToBe</p><cite>Romeo</cite></blockquote>",
			encoderMD:    "> ToBeOrNotToBe",
			encoderSz:    `(BLOCK (REGION-QUOTE () (BLOCK (PARA (TEXT "ToBeOrNotToBe"))) (INLINE (TEXT "Romeo"))))`,
			encoderSHTML: `((blockquote (p "ToBeOrNotToBe") (cite "Romeo")))`,
			encoderText:  "ToBeOrNotToBe\nRomeo",
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Quote Block with multiple paragraphs",
		zmk:   "<<<\nToBeOr\n\nNotToBe\n<<< Romeo",
		expect: expectMap{
			encoderHTML:  "<blockquote><p>ToBeOr</p><p>NotToBe</p><cite>Romeo</cite></blockquote>",
			encoderMD:    "> ToBeOr\n\n> NotToBe",
			encoderSz:    `(BLOCK (REGION-QUOTE () (BLOCK (PARA (TEXT "ToBeOr")) (PARA (TEXT "NotToBe"))) (INLINE (TEXT "Romeo"))))`,
			encoderSHTML: `((blockquote (p "ToBeOr") (p "NotToBe") (cite "Romeo")))`,
			encoderText:  "ToBeOr\nNotToBe\nRomeo",
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Verse block",
		zmk: `"""
A line
  another line
Back

Paragraph

    Spacy  Para
""" Author`,
		expect: expectMap{
			encoderHTML:  "<div><p>A\u00a0line<br>\u00a0\u00a0another\u00a0line<br>Back</p><p>Paragraph</p><p>\u00a0\u00a0\u00a0\u00a0Spacy\u00a0\u00a0Para</p><cite>Author</cite></div>",
			encoderMD:    "",
			encoderSz:    "(BLOCK (REGION-VERSE () (BLOCK (PARA (TEXT \"A\") (SPACE \"\u00a0\") (TEXT \"line\") (HARD) (SPACE \"\u00a0\u00a0\") (TEXT \"another\") (SPACE \"\u00a0\") (TEXT \"line\") (HARD) (TEXT \"Back\")) (PARA (TEXT \"Paragraph\")) (PARA (SPACE \"\u00a0\u00a0\u00a0\u00a0\") (TEXT \"Spacy\") (SPACE \"\u00a0\u00a0\") (TEXT \"Para\"))) (INLINE (TEXT \"Author\"))))",
			encoderSHTML: "((div (p \"A\" \"\u00a0\" \"line\" (br) \"\u00a0\u00a0\" \"another\" \"\u00a0\" \"line\" (br) \"Back\") (p \"Paragraph\") (p \"\u00a0\u00a0\u00a0\u00a0\" \"Spacy\" \"\u00a0\u00a0\" \"Para\") (cite \"Author\")))",
			encoderText:  "A line\n another line\nBack\nParagraph\n Spacy Para\nAuthor",
			encoderZmk:   "\"\"\"\nA\u00a0line\\\n\u00a0\u00a0another\u00a0line\\\nBack\nParagraph\n\u00a0\u00a0\u00a0\u00a0Spacy\u00a0\u00a0Para\n\"\"\" Author",
		},
	},
	{
		descr: "Span Block",
		zmk: `:::
A simple
   span
and much more
:::`,
		expect: expectMap{
			encoderHTML:  "<div><p>A simple  span and much more</p></div>",
			encoderMD:    "",
			encoderSz:    `(BLOCK (REGION-BLOCK () (BLOCK (PARA (TEXT "A") (SPACE) (TEXT "simple") (SOFT) (SPACE) (TEXT "span") (SOFT) (TEXT "and") (SPACE) (TEXT "much") (SPACE) (TEXT "more"))) (INLINE)))`,
			encoderSHTML: `((div (p "A" " " "simple" " " " " "span" " " "and" " " "much" " " "more")))`,
			encoderText:  `A simple  span and much more`,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Simple Verbatim Code",







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			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Simple List Quote",
		zmk:   "> ToBeOrNotToBe",
		expect: expectMap{
			encoderHTML:  "<blockquote>ToBeOrNotToBe</blockquote>",
			encoderMD:    "> ToBeOrNotToBe",
			encoderSz:    `(BLOCK (QUOTATION (INLINE (TEXT "ToBeOrNotToBe"))))`,
			encoderSHTML: `((blockquote (@L "ToBeOrNotToBe")))`,
			encoderText:  "ToBeOrNotToBe",
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Simple Quote Block",
		zmk:   "<<<\nToBeOrNotToBe\n<<< Romeo Julia",
		expect: expectMap{
			encoderHTML:  "<blockquote><p>ToBeOrNotToBe</p><cite>Romeo Julia</cite></blockquote>",
			encoderMD:    "> ToBeOrNotToBe",
			encoderSz:    `(BLOCK (REGION-QUOTE () ((PARA (TEXT "ToBeOrNotToBe"))) (TEXT "Romeo") (SPACE) (TEXT "Julia")))`,
			encoderSHTML: `((blockquote (p "ToBeOrNotToBe") (cite "Romeo" " " "Julia")))`,
			encoderText:  "ToBeOrNotToBe\nRomeo Julia",
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Quote Block with multiple paragraphs",
		zmk:   "<<<\nToBeOr\n\nNotToBe\n<<< Romeo",
		expect: expectMap{
			encoderHTML:  "<blockquote><p>ToBeOr</p><p>NotToBe</p><cite>Romeo</cite></blockquote>",
			encoderMD:    "> ToBeOr\n\n> NotToBe",
			encoderSz:    `(BLOCK (REGION-QUOTE () ((PARA (TEXT "ToBeOr")) (PARA (TEXT "NotToBe"))) (TEXT "Romeo")))`,
			encoderSHTML: `((blockquote (p "ToBeOr") (p "NotToBe") (cite "Romeo")))`,
			encoderText:  "ToBeOr\nNotToBe\nRomeo",
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Verse block",
		zmk: `"""
A line
  another line
Back

Paragraph

    Spacy  Para
""" Author`,
		expect: expectMap{
			encoderHTML:  "<div><p>A\u00a0line<br>\u00a0\u00a0another\u00a0line<br>Back</p><p>Paragraph</p><p>\u00a0\u00a0\u00a0\u00a0Spacy\u00a0\u00a0Para</p><cite>Author</cite></div>",
			encoderMD:    "",
			encoderSz:    "(BLOCK (REGION-VERSE () ((PARA (TEXT \"A\") (SPACE \"\u00a0\") (TEXT \"line\") (HARD) (SPACE \"\u00a0\u00a0\") (TEXT \"another\") (SPACE \"\u00a0\") (TEXT \"line\") (HARD) (TEXT \"Back\")) (PARA (TEXT \"Paragraph\")) (PARA (SPACE \"\u00a0\u00a0\u00a0\u00a0\") (TEXT \"Spacy\") (SPACE \"\u00a0\u00a0\") (TEXT \"Para\"))) (TEXT \"Author\")))",
			encoderSHTML: "((div (p \"A\" \"\u00a0\" \"line\" (br) \"\u00a0\u00a0\" \"another\" \"\u00a0\" \"line\" (br) \"Back\") (p \"Paragraph\") (p \"\u00a0\u00a0\u00a0\u00a0\" \"Spacy\" \"\u00a0\u00a0\" \"Para\") (cite \"Author\")))",
			encoderText:  "A line\n another line\nBack\nParagraph\n Spacy Para\nAuthor",
			encoderZmk:   "\"\"\"\nA\u00a0line\\\n\u00a0\u00a0another\u00a0line\\\nBack\nParagraph\n\u00a0\u00a0\u00a0\u00a0Spacy\u00a0\u00a0Para\n\"\"\" Author",
		},
	},
	{
		descr: "Span Block",
		zmk: `:::
A simple
   span
and much more
:::`,
		expect: expectMap{
			encoderHTML:  "<div><p>A simple  span and much more</p></div>",
			encoderMD:    "",
			encoderSz:    `(BLOCK (REGION-BLOCK () ((PARA (TEXT "A") (SPACE) (TEXT "simple") (SOFT) (SPACE) (TEXT "span") (SOFT) (TEXT "and") (SPACE) (TEXT "much") (SPACE) (TEXT "more")))))`,
			encoderSHTML: `((div (p "A" " " "simple" " " " " "span" " " "and" " " "much" " " "more")))`,
			encoderText:  `A simple  span and much more`,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Simple Verbatim Code",
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	},
	{
		descr: "Simple Verbatim Code with visible spaces",
		zmk:   "```{-}\nHello World\n```",
		expect: expectMap{
			encoderHTML:  "<pre><code>Hello\u2423World</code></pre>",
			encoderMD:    "    Hello World",
			encoderSz:    `(BLOCK (VERBATIM-CODE (quote (("-" . ""))) "Hello World"))`,
			encoderSHTML: "((pre (code \"Hello\u2423World\")))",
			encoderText:  "Hello World",
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Simple Verbatim Eval",







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	},
	{
		descr: "Simple Verbatim Code with visible spaces",
		zmk:   "```{-}\nHello World\n```",
		expect: expectMap{
			encoderHTML:  "<pre><code>Hello\u2423World</code></pre>",
			encoderMD:    "    Hello World",
			encoderSz:    `(BLOCK (VERBATIM-CODE (("-" . "")) "Hello World"))`,
			encoderSHTML: "((pre (code \"Hello\u2423World\")))",
			encoderText:  "Hello World",
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Simple Verbatim Eval",
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	},
	{
		descr: "Simple Description List",
		zmk:   "; Zettel\n: Paper\n: Note\n; Zettelkasten\n: Slip box",
		expect: expectMap{
			encoderHTML:  "<dl><dt>Zettel</dt><dd><p>Paper</p></dd><dd><p>Note</p></dd><dt>Zettelkasten</dt><dd><p>Slip box</p></dd></dl>",
			encoderMD:    "",
			encoderSz:    `(BLOCK (DESCRIPTION (INLINE (TEXT "Zettel")) (BLOCK (BLOCK (PARA (TEXT "Paper"))) (BLOCK (PARA (TEXT "Note")))) (INLINE (TEXT "Zettelkasten")) (BLOCK (BLOCK (PARA (TEXT "Slip") (SPACE) (TEXT "box"))))))`,
			encoderSHTML: `((dl (dt "Zettel") (dd (p "Paper")) (dd (p "Note")) (dt "Zettelkasten") (dd (p "Slip" " " "box"))))`,
			encoderText:  "Zettel\nPaper\nNote\nZettelkasten\nSlip box",
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Description List with paragraphs as item",
		zmk:   "; Zettel\n: Paper\n\n  Note\n; Zettelkasten\n: Slip box",
		expect: expectMap{
			encoderHTML:  "<dl><dt>Zettel</dt><dd><p>Paper</p><p>Note</p></dd><dt>Zettelkasten</dt><dd><p>Slip box</p></dd></dl>",
			encoderMD:    "",
			encoderSz:    `(BLOCK (DESCRIPTION (INLINE (TEXT "Zettel")) (BLOCK (BLOCK (PARA (TEXT "Paper")) (PARA (TEXT "Note")))) (INLINE (TEXT "Zettelkasten")) (BLOCK (BLOCK (PARA (TEXT "Slip") (SPACE) (TEXT "box"))))))`,
			encoderSHTML: `((dl (dt "Zettel") (dd (p "Paper") (p "Note")) (dt "Zettelkasten") (dd (p "Slip" " " "box"))))`,
			encoderText:  "Zettel\nPaper\nNote\nZettelkasten\nSlip box",
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Description List with keys, but no descriptions",
		zmk:   "; K1\n: D11\n: D12\n; K2\n; K3\n: D31",
		expect: expectMap{
			encoderHTML:  "<dl><dt>K1</dt><dd><p>D11</p></dd><dd><p>D12</p></dd><dt>K2</dt><dt>K3</dt><dd><p>D31</p></dd></dl>",
			encoderMD:    "",
			encoderSz:    `(BLOCK (DESCRIPTION (INLINE (TEXT "K1")) (BLOCK (BLOCK (PARA (TEXT "D11"))) (BLOCK (PARA (TEXT "D12")))) (INLINE (TEXT "K2")) (BLOCK) (INLINE (TEXT "K3")) (BLOCK (BLOCK (PARA (TEXT "D31"))))))`,
			encoderSHTML: `((dl (dt "K1") (dd (p "D11")) (dd (p "D12")) (dt "K2") (dt "K3") (dd (p "D31"))))`,
			encoderText:  "K1\nD11\nD12\nK2\nK3\nD31",
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Simple Table",
		zmk:   "|c1|c2|c3\n|d1||d3",
		expect: expectMap{
			encoderHTML:  `<table><tbody><tr><td>c1</td><td>c2</td><td>c3</td></tr><tr><td>d1</td><td></td><td>d3</td></tr></tbody></table>`,
			encoderMD:    "",
			encoderSz:    `(BLOCK (TABLE () (list (CELL (TEXT "c1")) (CELL (TEXT "c2")) (CELL (TEXT "c3"))) (list (CELL (TEXT "d1")) (CELL) (CELL (TEXT "d3")))))`,
			encoderSHTML: `((table (tbody (tr (td "c1") (td "c2") (td "c3")) (tr (td "d1") (td) (td "d3")))))`,
			encoderText:  "c1 c2 c3\nd1  d3",
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Table with alignment and comment",
		zmk: `|h1>|=h2|h3:|
|%--+---+---+
|<c1|c2|:c3|
|f1|f2|=f3`,
		expect: expectMap{
			encoderHTML:  `<table><thead><tr><td class="right">h1</td><td>h2</td><td class="center">h3</td></tr></thead><tbody><tr><td class="left">c1</td><td>c2</td><td class="center">c3</td></tr><tr><td class="right">f1</td><td>f2</td><td class="center">=f3</td></tr></tbody></table>`,
			encoderMD:    "",
			encoderSz:    `(BLOCK (TABLE (list (CELL-RIGHT (TEXT "h1")) (CELL (TEXT "h2")) (CELL-CENTER (TEXT "h3"))) (list (CELL-LEFT (TEXT "c1")) (CELL (TEXT "c2")) (CELL-CENTER (TEXT "c3"))) (list (CELL-RIGHT (TEXT "f1")) (CELL (TEXT "f2")) (CELL-CENTER (TEXT "=f3")))))`,
			encoderSHTML: `((table (thead (tr (td (@ (class . "right")) "h1") (td "h2") (td (@ (class . "center")) "h3"))) (tbody (tr (td (@ (class . "left")) "c1") (td "c2") (td (@ (class . "center")) "c3")) (tr (td (@ (class . "right")) "f1") (td "f2") (td (@ (class . "center")) "=f3")))))`,
			encoderText:  "h1 h2 h3\nc1 c2 c3\nf1 f2 =f3",
			encoderZmk: `|=h1>|=h2|=h3:
|<c1|c2|c3
|f1|f2|=f3`,
		},
	},
	{
		descr: "Simple Endnote",
		zmk:   `Text[^Endnote]`,
		expect: expectMap{
			encoderHTML:  "<p>Text<sup id=\"fnref:1\"><a class=\"zs-noteref\" href=\"#fn:1\" role=\"doc-noteref\">1</a></sup></p><ol class=\"zs-endnotes\"><li class=\"zs-endnote\" id=\"fn:1\" role=\"doc-endnote\" value=\"1\">Endnote <a class=\"zs-endnote-backref\" href=\"#fnref:1\" role=\"doc-backlink\">\u21a9\ufe0e</a></li></ol>",
			encoderMD:    "Text",
			encoderSz:    `(BLOCK (PARA (TEXT "Text") (ENDNOTE () (quote (INLINE (TEXT "Endnote"))))))`,
			encoderSHTML: "((p \"Text\" (sup (@ (id . \"fnref:1\")) (a (@ (class . \"zs-noteref\") (href . \"#fn:1\") (role . \"doc-noteref\")) \"1\"))))",
			encoderText:  "Text Endnote",
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Nested Endnotes",
		zmk:   `Text[^Endnote[^Nested]]`,
		expect: expectMap{
			encoderHTML:  "<p>Text<sup id=\"fnref:1\"><a class=\"zs-noteref\" href=\"#fn:1\" role=\"doc-noteref\">1</a></sup></p><ol class=\"zs-endnotes\"><li class=\"zs-endnote\" id=\"fn:1\" role=\"doc-endnote\" value=\"1\">Endnote<sup id=\"fnref:2\"><a class=\"zs-noteref\" href=\"#fn:2\" role=\"doc-noteref\">2</a></sup> <a class=\"zs-endnote-backref\" href=\"#fnref:1\" role=\"doc-backlink\">\u21a9\ufe0e</a></li><li class=\"zs-endnote\" id=\"fn:2\" role=\"doc-endnote\" value=\"2\">Nested <a class=\"zs-endnote-backref\" href=\"#fnref:2\" role=\"doc-backlink\">\u21a9\ufe0e</a></li></ol>",
			encoderMD:    "Text",
			encoderSz:    `(BLOCK (PARA (TEXT "Text") (ENDNOTE () (quote (INLINE (TEXT "Endnote") (ENDNOTE () (quote (INLINE (TEXT "Nested")))))))))`,
			encoderSHTML: "((p \"Text\" (sup (@ (id . \"fnref:1\")) (a (@ (class . \"zs-noteref\") (href . \"#fn:1\") (role . \"doc-noteref\")) \"1\"))))",
			encoderText:  "Text Endnote Nested",
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Transclusion",
		zmk:   `{{{http://example.com/image}}}{width="100px"}`,
		expect: expectMap{
			encoderHTML:  `<p><img class="external" src="http://example.com/image" width="100px"></p>`,
			encoderMD:    "",
			encoderSz:    `(BLOCK (TRANSCLUDE (quote (("width" . "100px"))) (quote (EXTERNAL "http://example.com/image"))))`,
			encoderSHTML: `((p (img (@ (class . "external") (src . "http://example.com/image") (width . "100px")))))`,
			encoderText:  "",
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "A paragraph with a inline comment only should be empty in HTML",







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	},
	{
		descr: "Simple Description List",
		zmk:   "; Zettel\n: Paper\n: Note\n; Zettelkasten\n: Slip box",
		expect: expectMap{
			encoderHTML:  "<dl><dt>Zettel</dt><dd><p>Paper</p></dd><dd><p>Note</p></dd><dt>Zettelkasten</dt><dd><p>Slip box</p></dd></dl>",
			encoderMD:    "",
			encoderSz:    `(BLOCK (DESCRIPTION ((TEXT "Zettel")) (BLOCK (BLOCK (PARA (TEXT "Paper"))) (BLOCK (PARA (TEXT "Note")))) ((TEXT "Zettelkasten")) (BLOCK (BLOCK (PARA (TEXT "Slip") (SPACE) (TEXT "box"))))))`,
			encoderSHTML: `((dl (dt "Zettel") (dd (p "Paper")) (dd (p "Note")) (dt "Zettelkasten") (dd (p "Slip" " " "box"))))`,
			encoderText:  "Zettel\nPaper\nNote\nZettelkasten\nSlip box",
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Description List with paragraphs as item",
		zmk:   "; Zettel\n: Paper\n\n  Note\n; Zettelkasten\n: Slip box",
		expect: expectMap{
			encoderHTML:  "<dl><dt>Zettel</dt><dd><p>Paper</p><p>Note</p></dd><dt>Zettelkasten</dt><dd><p>Slip box</p></dd></dl>",
			encoderMD:    "",
			encoderSz:    `(BLOCK (DESCRIPTION ((TEXT "Zettel")) (BLOCK (BLOCK (PARA (TEXT "Paper")) (PARA (TEXT "Note")))) ((TEXT "Zettelkasten")) (BLOCK (BLOCK (PARA (TEXT "Slip") (SPACE) (TEXT "box"))))))`,
			encoderSHTML: `((dl (dt "Zettel") (dd (p "Paper") (p "Note")) (dt "Zettelkasten") (dd (p "Slip" " " "box"))))`,
			encoderText:  "Zettel\nPaper\nNote\nZettelkasten\nSlip box",
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Description List with keys, but no descriptions",
		zmk:   "; K1\n: D11\n: D12\n; K2\n; K3\n: D31",
		expect: expectMap{
			encoderHTML:  "<dl><dt>K1</dt><dd><p>D11</p></dd><dd><p>D12</p></dd><dt>K2</dt><dt>K3</dt><dd><p>D31</p></dd></dl>",
			encoderMD:    "",
			encoderSz:    `(BLOCK (DESCRIPTION ((TEXT "K1")) (BLOCK (BLOCK (PARA (TEXT "D11"))) (BLOCK (PARA (TEXT "D12")))) ((TEXT "K2")) (BLOCK) ((TEXT "K3")) (BLOCK (BLOCK (PARA (TEXT "D31"))))))`,
			encoderSHTML: `((dl (dt "K1") (dd (p "D11")) (dd (p "D12")) (dt "K2") (dt "K3") (dd (p "D31"))))`,
			encoderText:  "K1\nD11\nD12\nK2\nK3\nD31",
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Simple Table",
		zmk:   "|c1|c2|c3\n|d1||d3",
		expect: expectMap{
			encoderHTML:  `<table><tbody><tr><td>c1</td><td>c2</td><td>c3</td></tr><tr><td>d1</td><td></td><td>d3</td></tr></tbody></table>`,
			encoderMD:    "",
			encoderSz:    `(BLOCK (TABLE () ((CELL (TEXT "c1")) (CELL (TEXT "c2")) (CELL (TEXT "c3"))) ((CELL (TEXT "d1")) (CELL) (CELL (TEXT "d3")))))`,
			encoderSHTML: `((table (tbody (tr (td "c1") (td "c2") (td "c3")) (tr (td "d1") (td) (td "d3")))))`,
			encoderText:  "c1 c2 c3\nd1  d3",
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Table with alignment and comment",
		zmk: `|h1>|=h2|h3:|
|%--+---+---+
|<c1|c2|:c3|
|f1|f2|=f3`,
		expect: expectMap{
			encoderHTML:  `<table><thead><tr><td class="right">h1</td><td>h2</td><td class="center">h3</td></tr></thead><tbody><tr><td class="left">c1</td><td>c2</td><td class="center">c3</td></tr><tr><td class="right">f1</td><td>f2</td><td class="center">=f3</td></tr></tbody></table>`,
			encoderMD:    "",
			encoderSz:    `(BLOCK (TABLE ((CELL-RIGHT (TEXT "h1")) (CELL (TEXT "h2")) (CELL-CENTER (TEXT "h3"))) ((CELL-LEFT (TEXT "c1")) (CELL (TEXT "c2")) (CELL-CENTER (TEXT "c3"))) ((CELL-RIGHT (TEXT "f1")) (CELL (TEXT "f2")) (CELL-CENTER (TEXT "=f3")))))`,
			encoderSHTML: `((table (thead (tr (td (@ (class . "right")) "h1") (td "h2") (td (@ (class . "center")) "h3"))) (tbody (tr (td (@ (class . "left")) "c1") (td "c2") (td (@ (class . "center")) "c3")) (tr (td (@ (class . "right")) "f1") (td "f2") (td (@ (class . "center")) "=f3")))))`,
			encoderText:  "h1 h2 h3\nc1 c2 c3\nf1 f2 =f3",
			encoderZmk: `|=h1>|=h2|=h3:
|<c1|c2|c3
|f1|f2|=f3`,
		},
	},
	{
		descr: "Simple Endnote",
		zmk:   `Text[^Endnote]`,
		expect: expectMap{
			encoderHTML:  "<p>Text<sup id=\"fnref:1\"><a class=\"zs-noteref\" href=\"#fn:1\" role=\"doc-noteref\">1</a></sup></p><ol class=\"zs-endnotes\"><li class=\"zs-endnote\" id=\"fn:1\" role=\"doc-endnote\" value=\"1\">Endnote <a class=\"zs-endnote-backref\" href=\"#fnref:1\" role=\"doc-backlink\">\u21a9\ufe0e</a></li></ol>",
			encoderMD:    "Text",
			encoderSz:    `(BLOCK (PARA (TEXT "Text") (ENDNOTE () (TEXT "Endnote"))))`,
			encoderSHTML: "((p \"Text\" (sup (@ (id . \"fnref:1\")) (a (@ (class . \"zs-noteref\") (href . \"#fn:1\") (role . \"doc-noteref\")) \"1\"))))",
			encoderText:  "Text Endnote",
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Nested Endnotes",
		zmk:   `Text[^Endnote[^Nested]]`,
		expect: expectMap{
			encoderHTML:  "<p>Text<sup id=\"fnref:1\"><a class=\"zs-noteref\" href=\"#fn:1\" role=\"doc-noteref\">1</a></sup></p><ol class=\"zs-endnotes\"><li class=\"zs-endnote\" id=\"fn:1\" role=\"doc-endnote\" value=\"1\">Endnote<sup id=\"fnref:2\"><a class=\"zs-noteref\" href=\"#fn:2\" role=\"doc-noteref\">2</a></sup> <a class=\"zs-endnote-backref\" href=\"#fnref:1\" role=\"doc-backlink\">\u21a9\ufe0e</a></li><li class=\"zs-endnote\" id=\"fn:2\" role=\"doc-endnote\" value=\"2\">Nested <a class=\"zs-endnote-backref\" href=\"#fnref:2\" role=\"doc-backlink\">\u21a9\ufe0e</a></li></ol>",
			encoderMD:    "Text",
			encoderSz:    `(BLOCK (PARA (TEXT "Text") (ENDNOTE () (TEXT "Endnote") (ENDNOTE () (TEXT "Nested")))))`,
			encoderSHTML: "((p \"Text\" (sup (@ (id . \"fnref:1\")) (a (@ (class . \"zs-noteref\") (href . \"#fn:1\") (role . \"doc-noteref\")) \"1\"))))",
			encoderText:  "Text Endnote Nested",
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Transclusion",
		zmk:   `{{{http://example.com/image}}}{width="100px"}`,
		expect: expectMap{
			encoderHTML:  `<p><img class="external" src="http://example.com/image" width="100px"></p>`,
			encoderMD:    "",
			encoderSz:    `(BLOCK (TRANSCLUDE (("width" . "100px")) (EXTERNAL "http://example.com/image")))`,
			encoderSHTML: `((p (img (@ (class . "external") (src . "http://example.com/image") (width . "100px")))))`,
			encoderText:  "",
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "A paragraph with a inline comment only should be empty in HTML",

Changes to encoder/encoder_inline_test.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package encoder_test

var tcsInline = []zmkTestCase{
	{
		descr: "Empty Zettelmarkup should produce near nothing (inline)",








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package encoder_test

var tcsInline = []zmkTestCase{
	{
		descr: "Empty Zettelmarkup should produce near nothing (inline)",
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			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Quotes formatting",
		zmk:   `""quotes""`,
		expect: expectMap{
			encoderHTML:  "<q>quotes</q>",
			encoderMD:    "<q>quotes</q>",
			encoderSz:    `(INLINE (FORMAT-QUOTE () (TEXT "quotes")))`,
			encoderSHTML: `((q "quotes"))`,
			encoderText:  `quotes`,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Quotes formatting (german)",
		zmk:   `""quotes""{lang=de}`,
		expect: expectMap{
			encoderHTML:  `<span lang="de"><q>quotes</q></span>`,
			encoderMD:    "<q>quotes</q>",
			encoderSz:    `(INLINE (FORMAT-QUOTE (quote (("lang" . "de"))) (TEXT "quotes")))`,
			encoderSHTML: `((span (@ (lang . "de")) (q "quotes")))`,
			encoderText:  `quotes`,
			encoderZmk:   `""quotes""{lang="de"}`,
		},
	},




























































	{
		descr: "Span formatting",
		zmk:   `::span::`,
		expect: expectMap{
			encoderHTML:  `<span>span</span>`,
			encoderMD:    "span",
			encoderSz:    `(INLINE (FORMAT-SPAN () (TEXT "span")))`,







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			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Quotes formatting",
		zmk:   `""quotes""`,
		expect: expectMap{
			encoderHTML:  "&ldquo;quotes&rdquo;",
			encoderMD:    "<q>quotes</q>",
			encoderSz:    `(INLINE (FORMAT-QUOTE () (TEXT "quotes")))`,
			encoderSHTML: `((@L (@H "&ldquo;") "quotes" (@H "&rdquo;")))`,
			encoderText:  `quotes`,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Quotes formatting (german)",
		zmk:   `""quotes""{lang=de}`,
		expect: expectMap{
			encoderHTML:  `<span lang="de">&bdquo;quotes&ldquo;</span>`,
			encoderMD:    "<q>quotes</q>",
			encoderSz:    `(INLINE (FORMAT-QUOTE (("lang" . "de")) (TEXT "quotes")))`,
			encoderSHTML: `((span (@ (lang . "de")) (@H "&bdquo;") "quotes" (@H "&ldquo;")))`,
			encoderText:  `quotes`,
			encoderZmk:   `""quotes""{lang="de"}`,
		},
	},
	{
		descr: "Empty quotes (default)",
		zmk:   `""""`,
		expect: expectMap{
			encoderHTML:  `&ldquo;&rdquo;`,
			encoderMD:    "<q></q>",
			encoderSz:    `(INLINE (FORMAT-QUOTE ()))`,
			encoderSHTML: `((@L (@H "&ldquo;" "&rdquo;")))`,
			encoderText:  ``,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Empty quotes (unknown)",
		zmk:   `""""{lang=unknown}`,
		expect: expectMap{
			encoderHTML:  `<span lang="unknown">&quot;&quot;</span>`,
			encoderMD:    "<q></q>",
			encoderSz:    `(INLINE (FORMAT-QUOTE (("lang" . "unknown"))))`,
			encoderSHTML: `((span (@ (lang . "unknown")) (@H "&quot;" "&quot;")))`,
			encoderText:  ``,
			encoderZmk:   `""""{lang="unknown"}`,
		},
	},
	{
		descr: "Nested quotes (default)",
		zmk:   `""say: ::""yes, ::""or?""::""::""`,
		expect: expectMap{
			encoderHTML:  `&ldquo;say: <span>&lsquo;yes, <span>&ldquo;or?&rdquo;</span>&rsquo;</span>&rdquo;`,
			encoderMD:    "<q>say: <q>yes, <q>or?</q></q></q>",
			encoderSz:    `(INLINE (FORMAT-QUOTE () (TEXT "say:") (SPACE) (FORMAT-SPAN () (FORMAT-QUOTE () (TEXT "yes,") (SPACE) (FORMAT-SPAN () (FORMAT-QUOTE () (TEXT "or?")))))))`,
			encoderSHTML: `((@L (@H "&ldquo;") "say:" " " (span (@L (@H "&lsquo;") "yes," " " (span (@L (@H "&ldquo;") "or?" (@H "&rdquo;"))) (@H "&rsquo;"))) (@H "&rdquo;")))`,
			encoderText:  `say: yes, or?`,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Two quotes",
		zmk:   `""yes"" or ""no""`,
		expect: expectMap{
			encoderHTML:  `&ldquo;yes&rdquo; or &ldquo;no&rdquo;`,
			encoderMD:    "<q>yes</q> or <q>no</q>",
			encoderSz:    `(INLINE (FORMAT-QUOTE () (TEXT "yes")) (SPACE) (TEXT "or") (SPACE) (FORMAT-QUOTE () (TEXT "no")))`,
			encoderSHTML: `((@L (@H "&ldquo;") "yes" (@H "&rdquo;")) " " "or" " " (@L (@H "&ldquo;") "no" (@H "&rdquo;")))`,
			encoderText:  `yes or no`,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Mark formatting",
		zmk:   `##marked##`,
		expect: expectMap{
			encoderHTML:  `<mark>marked</mark>`,
			encoderMD:    "<mark>marked</mark>",
			encoderSz:    `(INLINE (FORMAT-MARK () (TEXT "marked")))`,
			encoderSHTML: `((mark "marked"))`,
			encoderText:  `marked`,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Span formatting",
		zmk:   `::span::`,
		expect: expectMap{
			encoderHTML:  `<span>span</span>`,
			encoderMD:    "span",
			encoderSz:    `(INLINE (FORMAT-SPAN () (TEXT "span")))`,
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	},
	{
		descr: "Code formatting with visible space",
		zmk:   "``x y``{-}",
		expect: expectMap{
			encoderHTML:  "<code>x\u2423y</code>",
			encoderMD:    "`x y`",
			encoderSz:    `(INLINE (LITERAL-CODE (quote (("-" . ""))) "x y"))`,
			encoderSHTML: "((code \"x\u2423y\"))",
			encoderText:  `x y`,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "HTML in Code formatting",







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	},
	{
		descr: "Code formatting with visible space",
		zmk:   "``x y``{-}",
		expect: expectMap{
			encoderHTML:  "<code>x\u2423y</code>",
			encoderMD:    "`x y`",
			encoderSz:    `(INLINE (LITERAL-CODE (("-" . "")) "x y"))`,
			encoderSHTML: "((code \"x\u2423y\"))",
			encoderText:  `x y`,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "HTML in Code formatting",
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			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Nested Span Quote formatting",
		zmk:   `::""abc""::{lang=fr}`,
		expect: expectMap{
			encoderHTML:  `<span lang="fr"><q>abc</q></span>`,
			encoderMD:    "<q>abc</q>",
			encoderSz:    `(INLINE (FORMAT-SPAN (quote (("lang" . "fr"))) (FORMAT-QUOTE () (TEXT "abc"))))`,
			encoderSHTML: `((span (@ (lang . "fr")) (q "abc")))`,
			encoderText:  `abc`,
			encoderZmk:   `::""abc""::{lang="fr"}`,
		},
	},
	{
		descr: "Simple Citation",
		zmk:   `[@Stern18]`,







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			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Nested Span Quote formatting",
		zmk:   `::""abc""::{lang=fr}`,
		expect: expectMap{
			encoderHTML:  `<span lang="fr">&laquo;&nbsp;abc&nbsp;&raquo;</span>`,
			encoderMD:    "<q>abc</q>",
			encoderSz:    `(INLINE (FORMAT-SPAN (("lang" . "fr")) (FORMAT-QUOTE () (TEXT "abc"))))`,
			encoderSHTML: `((span (@ (lang . "fr")) (@L (@H "&laquo;" "&nbsp;") "abc" (@H "&nbsp;" "&raquo;"))))`,
			encoderText:  `abc`,
			encoderZmk:   `::""abc""::{lang="fr"}`,
		},
	},
	{
		descr: "Simple Citation",
		zmk:   `[@Stern18]`,
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	},
	{
		descr: "Line comment",
		zmk:   `%%{-} line comment`,
		expect: expectMap{
			encoderHTML:  `<!-- line comment -->`,
			encoderMD:    "",
			encoderSz:    `(INLINE (LITERAL-COMMENT (quote (("-" . ""))) "line comment"))`,
			encoderSHTML: `((@@ "line comment"))`,
			encoderText:  ``,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Comment after text",
		zmk:   `Text %%{-} comment`,
		expect: expectMap{
			encoderHTML:  `Text<!-- comment -->`,
			encoderMD:    "Text",
			encoderSz:    `(INLINE (TEXT "Text") (LITERAL-COMMENT (quote (("-" . ""))) "comment"))`,
			encoderSHTML: `("Text" (@@ "comment"))`,
			encoderText:  `Text`,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Comment after text and with -->",
		zmk:   `Text %%{-} comment --> end`,
		expect: expectMap{
			encoderHTML:  `Text<!-- comment -&#45;> end -->`,
			encoderMD:    "Text",
			encoderSz:    `(INLINE (TEXT "Text") (LITERAL-COMMENT (quote (("-" . ""))) "comment --> end"))`,
			encoderSHTML: `("Text" (@@ "comment --> end"))`,
			encoderText:  `Text`,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Simple inline endnote",
		zmk:   `[^endnote]`,
		expect: expectMap{
			encoderHTML:  `<sup id="fnref:1"><a class="zs-noteref" href="#fn:1" role="doc-noteref">1</a></sup>`,
			encoderMD:    "",
			encoderSz:    `(INLINE (ENDNOTE () (quote (INLINE (TEXT "endnote")))))`,
			encoderSHTML: `((sup (@ (id . "fnref:1")) (a (@ (class . "zs-noteref") (href . "#fn:1") (role . "doc-noteref")) "1")))`,
			encoderText:  `endnote`,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Simple mark",







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	},
	{
		descr: "Line comment",
		zmk:   `%%{-} line comment`,
		expect: expectMap{
			encoderHTML:  `<!-- line comment -->`,
			encoderMD:    "",
			encoderSz:    `(INLINE (LITERAL-COMMENT (("-" . "")) "line comment"))`,
			encoderSHTML: `((@@ "line comment"))`,
			encoderText:  ``,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Comment after text",
		zmk:   `Text %%{-} comment`,
		expect: expectMap{
			encoderHTML:  `Text<!-- comment -->`,
			encoderMD:    "Text",
			encoderSz:    `(INLINE (TEXT "Text") (LITERAL-COMMENT (("-" . "")) "comment"))`,
			encoderSHTML: `("Text" (@@ "comment"))`,
			encoderText:  `Text`,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Comment after text and with -->",
		zmk:   `Text %%{-} comment --> end`,
		expect: expectMap{
			encoderHTML:  `Text<!-- comment -&#45;> end -->`,
			encoderMD:    "Text",
			encoderSz:    `(INLINE (TEXT "Text") (LITERAL-COMMENT (("-" . "")) "comment --> end"))`,
			encoderSHTML: `("Text" (@@ "comment --> end"))`,
			encoderText:  `Text`,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Simple inline endnote",
		zmk:   `[^endnote]`,
		expect: expectMap{
			encoderHTML:  `<sup id="fnref:1"><a class="zs-noteref" href="#fn:1" role="doc-noteref">1</a></sup>`,
			encoderMD:    "",
			encoderSz:    `(INLINE (ENDNOTE () (TEXT "endnote")))`,
			encoderSHTML: `((sup (@ (id . "fnref:1")) (a (@ (class . "zs-noteref") (href . "#fn:1") (role . "doc-noteref")) "1")))`,
			encoderText:  `endnote`,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Simple mark",
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	},
	{
		descr: "Dummy Embed",
		zmk:   `{{abc}}`,
		expect: expectMap{
			encoderHTML:  `<img src="abc">`,
			encoderMD:    "![abc](abc)",
			encoderSz:    `(INLINE (EMBED () (quote (EXTERNAL "abc")) ""))`,
			encoderSHTML: `((img (@ (src . "abc"))))`,
			encoderText:  ``,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Inline HTML Zettel",







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	},
	{
		descr: "Dummy Embed",
		zmk:   `{{abc}}`,
		expect: expectMap{
			encoderHTML:  `<img src="abc">`,
			encoderMD:    "![abc](abc)",
			encoderSz:    `(INLINE (EMBED () (EXTERNAL "abc") ""))`,
			encoderSHTML: `((img (@ (src . "abc"))))`,
			encoderText:  ``,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "Inline HTML Zettel",
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	},
	{
		descr: "Inline Text Zettel",
		zmk:   `@@<hr>@@{="text"}`,
		expect: expectMap{
			encoderHTML:  ``,
			encoderMD:    "<hr>",
			encoderSz:    `(INLINE (LITERAL-ZETTEL (quote (("" . "text"))) "<hr>"))`,
			encoderSHTML: `(())`,
			encoderText:  `<hr>`,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "",







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	},
	{
		descr: "Inline Text Zettel",
		zmk:   `@@<hr>@@{="text"}`,
		expect: expectMap{
			encoderHTML:  ``,
			encoderMD:    "<hr>",
			encoderSz:    `(INLINE (LITERAL-ZETTEL (("" . "text")) "<hr>"))`,
			encoderSHTML: `(())`,
			encoderText:  `<hr>`,
			encoderZmk:   useZmk,
		},
	},
	{
		descr: "",

Changes to encoder/encoder_test.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package encoder_test

import (
	"fmt"
	"strings"
	"testing"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/sx.fossil/sxreader"

	"zettelstore.de/z/ast"
	"zettelstore.de/z/config"
	"zettelstore.de/z/encoder"
	"zettelstore.de/z/input"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/meta"

	_ "zettelstore.de/z/encoder/htmlenc"  // Allow to use HTML encoder.
	_ "zettelstore.de/z/encoder/mdenc"    // Allow to use markdown encoder.
	_ "zettelstore.de/z/encoder/shtmlenc" // Allow to use SHTML encoder.
	_ "zettelstore.de/z/encoder/szenc"    // Allow to use sz encoder.








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package encoder_test

import (
	"fmt"
	"strings"
	"testing"

	"t73f.de/r/sx/sxreader"
	"t73f.de/r/zsc/api"
	"t73f.de/r/zsc/input"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/config"
	"zettelstore.de/z/encoder"

	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/meta"

	_ "zettelstore.de/z/encoder/htmlenc"  // Allow to use HTML encoder.
	_ "zettelstore.de/z/encoder/mdenc"    // Allow to use markdown encoder.
	_ "zettelstore.de/z/encoder/shtmlenc" // Allow to use SHTML encoder.
	_ "zettelstore.de/z/encoder/szenc"    // Allow to use sz encoder.
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		checkEncodings(t, testNum, pe, tc.descr, tc.expect, tc.zmk)
		checkSz(t, testNum, pe, tc.descr)
	}
}

func checkEncodings(t *testing.T, testNum int, pe parserEncoder, descr string, expected expectMap, zmkDefault string) {
	for enc, exp := range expected {
		encdr := encoder.Create(enc)
		got, err := pe.encode(encdr)
		if err != nil {
			prefix := fmt.Sprintf("Test #%d", testNum)
			if d := descr; d != "" {
				prefix += "\nReason:   " + d
			}
			prefix += "\nMode:     " + pe.mode()







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		checkEncodings(t, testNum, pe, tc.descr, tc.expect, tc.zmk)
		checkSz(t, testNum, pe, tc.descr)
	}
}

func checkEncodings(t *testing.T, testNum int, pe parserEncoder, descr string, expected expectMap, zmkDefault string) {
	for enc, exp := range expected {
		encdr := encoder.Create(enc, &encoder.CreateParameter{Lang: api.ValueLangEN})
		got, err := pe.encode(encdr)
		if err != nil {
			prefix := fmt.Sprintf("Test #%d", testNum)
			if d := descr; d != "" {
				prefix += "\nReason:   " + d
			}
			prefix += "\nMode:     " + pe.mode()
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			t.Errorf("%s\nEncoder:  %s\nExpected: %q\nGot:      %q", prefix, enc, exp, got)
		}
	}
}

func checkSz(t *testing.T, testNum int, pe parserEncoder, descr string) {
	t.Helper()
	encdr := encoder.Create(encoderSz)
	exp, err := pe.encode(encdr)
	if err != nil {
		t.Error(err)
		return
	}
	val, err := sxreader.MakeReader(strings.NewReader(exp)).Read()
	if err != nil {
		t.Error(err)
		return
	}
	got := val.Repr()
	if exp != got {
		prefix := fmt.Sprintf("Test #%d", testNum)
		if d := descr; d != "" {
			prefix += "\nReason:   " + d
		}
		prefix += "\nMode:     " + pe.mode()
		t.Errorf("%s\n\nExpected: %q\nGot:      %q", prefix, exp, got)







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			t.Errorf("%s\nEncoder:  %s\nExpected: %q\nGot:      %q", prefix, enc, exp, got)
		}
	}
}

func checkSz(t *testing.T, testNum int, pe parserEncoder, descr string) {
	t.Helper()
	encdr := encoder.Create(encoderSz, nil)
	exp, err := pe.encode(encdr)
	if err != nil {
		t.Error(err)
		return
	}
	val, err := sxreader.MakeReader(strings.NewReader(exp)).Read()
	if err != nil {
		t.Error(err)
		return
	}
	got := val.String()
	if exp != got {
		prefix := fmt.Sprintf("Test #%d", testNum)
		if d := descr; d != "" {
			prefix += "\nReason:   " + d
		}
		prefix += "\nMode:     " + pe.mode()
		t.Errorf("%s\n\nExpected: %q\nGot:      %q", prefix, exp, got)

Changes to encoder/htmlenc/htmlenc.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package htmlenc encodes the abstract syntax tree into HTML5 via zettelstore-client.
package htmlenc

import (
	"io"
	"strings"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/client.fossil/shtml"
	"zettelstore.de/sx.fossil"
	"zettelstore.de/sx.fossil/sxhtml"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/encoder"
	"zettelstore.de/z/encoder/szenc"
	"zettelstore.de/z/encoder/textenc"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	encoder.Register(api.EncoderHTML, func() encoder.Encoder { return Create() })
}

// Create an encoder.
func Create() *Encoder {
	// We need a new transformer every time, because tx.inVerse must be unique.
	// If we can refactor it out, the transformer can be created only once.
	return &Encoder{
		tx:      szenc.NewTransformer(),
		th:      shtml.NewTransformer(1, nil),

		textEnc: textenc.Create(),
	}
}

type Encoder struct {
	tx      *szenc.Transformer
	th      *shtml.Transformer

	textEnc *textenc.Encoder
}

// WriteZettel encodes a full zettel as HTML5.
func (he *Encoder) WriteZettel(w io.Writer, zn *ast.ZettelNode, evalMeta encoder.EvalMetaFunc) (int, error) {

	hm, err := he.th.Transform(he.tx.GetMeta(zn.InhMeta, evalMeta))
	if err != nil {
		return 0, err
	}

	var isTitle ast.InlineSlice
	var htitle *sx.Pair
	plainTitle, hasTitle := zn.InhMeta.Get(api.KeyTitle)
	if hasTitle {
		isTitle = parser.ParseSpacedText(plainTitle)
		xtitle := he.tx.GetSz(&isTitle)
		htitle, err = he.th.Transform(xtitle)
		if err != nil {
			return 0, err
		}
	}

	xast := he.tx.GetSz(&zn.Ast)
	hast, err := he.th.Transform(xast)
	if err != nil {
		return 0, err
	}
	hen := he.th.Endnotes()

	sf := he.th.SymbolFactory()
	symAttr := sf.MustMake(sxhtml.NameSymAttr)

	head := sx.MakeList(sf.MustMake("head"))
	curr := head
	curr = curr.AppendBang(sx.Nil().Cons(sx.Nil().Cons(sx.Cons(sf.MustMake("charset"), sx.String("utf-8"))).Cons(symAttr)).Cons(sf.MustMake("meta")))
	for elem := hm; elem != nil; elem = elem.Tail() {
		curr = curr.AppendBang(elem.Car())
	}
	var sb strings.Builder
	if hasTitle {
		he.textEnc.WriteInlines(&sb, &isTitle)
	} else {
		sb.Write(zn.Meta.Zid.Bytes())
	}
	_ = curr.AppendBang(sx.Nil().Cons(sx.String(sb.String())).Cons(sf.MustMake("title")))

	body := sx.MakeList(sf.MustMake("body"))
	curr = body
	if hasTitle {
		curr = curr.AppendBang(htitle.Cons(sf.MustMake("h1")))
	}
	for elem := hast; elem != nil; elem = elem.Tail() {
		curr = curr.AppendBang(elem.Car())
	}
	if hen != nil {
		curr = curr.AppendBang(sx.Nil().Cons(sf.MustMake("hr")))
		_ = curr.AppendBang(hen)
	}

	doc := sx.MakeList(
		sf.MustMake(sxhtml.NameSymDoctype),
		sx.MakeList(sf.MustMake("html"), head, body),
	)

	gen := sxhtml.NewGenerator(sf, sxhtml.WithNewline)
	return gen.WriteHTML(w, doc)
}

// WriteMeta encodes meta data as HTML5.
func (he *Encoder) WriteMeta(w io.Writer, m *meta.Meta, evalMeta encoder.EvalMetaFunc) (int, error) {

	hm, err := he.th.Transform(he.tx.GetMeta(m, evalMeta))
	if err != nil {
		return 0, err
	}
	gen := sxhtml.NewGenerator(he.th.SymbolFactory(), sxhtml.WithNewline)
	return gen.WriteListHTML(w, hm)
}

func (he *Encoder) WriteContent(w io.Writer, zn *ast.ZettelNode) (int, error) {
	return he.WriteBlocks(w, &zn.Ast)
}

// WriteBlocks encodes a block slice.
func (he *Encoder) WriteBlocks(w io.Writer, bs *ast.BlockSlice) (int, error) {

	hobj, err := he.th.Transform(he.tx.GetSz(bs))
	if err == nil {
		gen := sxhtml.NewGenerator(he.th.SymbolFactory())
		length, err2 := gen.WriteListHTML(w, hobj)
		if err2 != nil {
			return length, err2
		}

		l, err2 := gen.WriteHTML(w, he.th.Endnotes())
		length += l
		return length, err2
	}
	return 0, err
}

// WriteInlines writes an inline slice to the writer
func (he *Encoder) WriteInlines(w io.Writer, is *ast.InlineSlice) (int, error) {

	hobj, err := he.th.Transform(he.tx.GetSz(is))
	if err == nil {
		gen := sxhtml.NewGenerator(sx.FindSymbolFactory(hobj))
		length, err2 := gen.WriteListHTML(w, hobj)
		if err2 != nil {
			return length, err2
		}
		return length, nil
	}
	return 0, err








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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2022-present Detlef Stern
//-----------------------------------------------------------------------------

// Package htmlenc encodes the abstract syntax tree into HTML5 via zettelstore-client.
package htmlenc

import (
	"io"
	"strings"

	"t73f.de/r/sx"
	"t73f.de/r/sxwebs/sxhtml"
	"t73f.de/r/zsc/api"
	"t73f.de/r/zsc/shtml"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/encoder"
	"zettelstore.de/z/encoder/szenc"
	"zettelstore.de/z/encoder/textenc"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	encoder.Register(api.EncoderHTML, func(params *encoder.CreateParameter) encoder.Encoder { return Create(params) })
}

// Create an encoder.
func Create(params *encoder.CreateParameter) *Encoder {
	// We need a new transformer every time, because tx.inVerse must be unique.
	// If we can refactor it out, the transformer can be created only once.
	return &Encoder{
		tx:      szenc.NewTransformer(),
		th:      shtml.NewEvaluator(1),
		lang:    params.Lang,
		textEnc: textenc.Create(),
	}
}

type Encoder struct {
	tx      *szenc.Transformer
	th      *shtml.Evaluator
	lang    string
	textEnc *textenc.Encoder
}

// WriteZettel encodes a full zettel as HTML5.
func (he *Encoder) WriteZettel(w io.Writer, zn *ast.ZettelNode, evalMeta encoder.EvalMetaFunc) (int, error) {
	env := shtml.MakeEnvironment(he.lang)
	hm, err := he.th.Evaluate(he.tx.GetMeta(zn.InhMeta, evalMeta), &env)
	if err != nil {
		return 0, err
	}

	var isTitle ast.InlineSlice
	var htitle *sx.Pair
	plainTitle, hasTitle := zn.InhMeta.Get(api.KeyTitle)
	if hasTitle {
		isTitle = parser.ParseSpacedText(plainTitle)
		xtitle := he.tx.GetSz(&isTitle)
		htitle, err = he.th.Evaluate(xtitle, &env)
		if err != nil {
			return 0, err
		}
	}

	xast := he.tx.GetSz(&zn.Ast)
	hast, err := he.th.Evaluate(xast, &env)
	if err != nil {
		return 0, err
	}
	hen := he.th.Endnotes(&env)



	var head sx.ListBuilder

	head.Add(shtml.SymHead)
	head.Add(sx.Nil().Cons(sx.Nil().Cons(sx.Cons(sx.MakeSymbol("charset"), sx.MakeString("utf-8"))).Cons(sxhtml.SymAttr)).Cons(shtml.SymMeta))

	head.ExtendBang(hm)

	var sb strings.Builder
	if hasTitle {
		he.textEnc.WriteInlines(&sb, &isTitle)
	} else {
		sb.Write(zn.Meta.Zid.Bytes())
	}
	head.Add(sx.MakeList(shtml.SymAttrTitle, sx.MakeString(sb.String())))

	var body sx.ListBuilder
	body.Add(shtml.SymBody)
	if hasTitle {
		body.Add(htitle.Cons(shtml.SymH1))
	}

	body.ExtendBang(hast)

	if hen != nil {
		body.Add(sx.Cons(shtml.SymHR, nil))
		body.Add(hen)
	}

	doc := sx.MakeList(
		sxhtml.SymDoctype,
		sx.MakeList(shtml.SymHtml, head.List(), body.List()),
	)

	gen := sxhtml.NewGenerator().SetNewline()
	return gen.WriteHTML(w, doc)
}

// WriteMeta encodes meta data as HTML5.
func (he *Encoder) WriteMeta(w io.Writer, m *meta.Meta, evalMeta encoder.EvalMetaFunc) (int, error) {
	env := shtml.MakeEnvironment(he.lang)
	hm, err := he.th.Evaluate(he.tx.GetMeta(m, evalMeta), &env)
	if err != nil {
		return 0, err
	}
	gen := sxhtml.NewGenerator().SetNewline()
	return gen.WriteListHTML(w, hm)
}

func (he *Encoder) WriteContent(w io.Writer, zn *ast.ZettelNode) (int, error) {
	return he.WriteBlocks(w, &zn.Ast)
}

// WriteBlocks encodes a block slice.
func (he *Encoder) WriteBlocks(w io.Writer, bs *ast.BlockSlice) (int, error) {
	env := shtml.MakeEnvironment(he.lang)
	hobj, err := he.th.Evaluate(he.tx.GetSz(bs), &env)
	if err == nil {
		gen := sxhtml.NewGenerator()
		length, err2 := gen.WriteListHTML(w, hobj)
		if err2 != nil {
			return length, err2
		}

		l, err2 := gen.WriteHTML(w, he.th.Endnotes(&env))
		length += l
		return length, err2
	}
	return 0, err
}

// WriteInlines writes an inline slice to the writer
func (he *Encoder) WriteInlines(w io.Writer, is *ast.InlineSlice) (int, error) {
	env := shtml.MakeEnvironment(he.lang)
	hobj, err := he.th.Evaluate(he.tx.GetSz(is), &env)
	if err == nil {
		gen := sxhtml.NewGenerator()
		length, err2 := gen.WriteListHTML(w, hobj)
		if err2 != nil {
			return length, err2
		}
		return length, nil
	}
	return 0, err

Changes to encoder/mdenc/mdenc.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package mdenc encodes the abstract syntax tree back into Markdown.
package mdenc

import (
	"io"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/encoder"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	encoder.Register(api.EncoderMD, func() encoder.Encoder { return Create() })
}

// Create an encoder.
func Create() *Encoder { return &myME }

type Encoder struct{}









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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2022-present Detlef Stern
//-----------------------------------------------------------------------------

// Package mdenc encodes the abstract syntax tree back into Markdown.
package mdenc

import (
	"io"

	"t73f.de/r/zsc/api"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/encoder"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	encoder.Register(api.EncoderMD, func(*encoder.CreateParameter) encoder.Encoder { return Create() })
}

// Create an encoder.
func Create() *Encoder { return &myME }

type Encoder struct{}

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		v.b.WriteString("__")
		ast.Walk(v, &fn.Inlines)
		v.b.WriteString("__")
	case ast.FormatQuote:
		v.b.WriteString("<q>")
		ast.Walk(v, &fn.Inlines)
		v.b.WriteString("</q>")




	default:
		ast.Walk(v, &fn.Inlines)
	}
}

func (v *visitor) visitLiteral(ln *ast.LiteralNode) {
	switch ln.Kind {
	case ast.LiteralProg:
		v.b.WriteByte('`')
		v.b.Write(ln.Content)
		v.b.WriteByte('`')
	case ast.LiteralComment, ast.LiteralHTML: // ignore everything
	default:
		v.b.Write(ln.Content)
	}
}

func (v *visitor) writeSpaces(n int) {
	for i := 0; i < n; i++ {
		v.b.WriteByte(' ')
	}
}







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		v.b.WriteString("__")
		ast.Walk(v, &fn.Inlines)
		v.b.WriteString("__")
	case ast.FormatQuote:
		v.b.WriteString("<q>")
		ast.Walk(v, &fn.Inlines)
		v.b.WriteString("</q>")
	case ast.FormatMark:
		v.b.WriteString("<mark>")
		ast.Walk(v, &fn.Inlines)
		v.b.WriteString("</mark>")
	default:
		ast.Walk(v, &fn.Inlines)
	}
}

func (v *visitor) visitLiteral(ln *ast.LiteralNode) {
	switch ln.Kind {
	case ast.LiteralProg:
		v.b.WriteByte('`')
		v.b.Write(ln.Content)
		v.b.WriteByte('`')
	case ast.LiteralComment, ast.LiteralHTML: // ignore everything
	default:
		v.b.Write(ln.Content)
	}
}

func (v *visitor) writeSpaces(n int) {
	for range n {
		v.b.WriteByte(' ')
	}
}

Changes to encoder/shtmlenc/shtmlenc.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2023-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package shtmlenc encodes the abstract syntax tree into a s-expr which represents HTML.
package shtmlenc

import (
	"io"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/client.fossil/shtml"
	"zettelstore.de/sx.fossil"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/encoder"
	"zettelstore.de/z/encoder/szenc"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	encoder.Register(api.EncoderSHTML, func() encoder.Encoder { return Create() })
}

// Create a SHTML encoder
func Create() *Encoder {
	// We need a new transformer every time, because tx.inVerse must be unique.
	// If we can refactor it out, the transformer can be created only once.
	return &Encoder{
		tx: szenc.NewTransformer(),
		th: shtml.NewTransformer(1, nil),

	}
}

type Encoder struct {
	tx *szenc.Transformer
	th *shtml.Transformer

}

// WriteZettel writes the encoded zettel to the writer.
func (enc *Encoder) WriteZettel(w io.Writer, zn *ast.ZettelNode, evalMeta encoder.EvalMetaFunc) (int, error) {

	metaSHTML, err := enc.th.Transform(enc.tx.GetMeta(zn.InhMeta, evalMeta))
	if err != nil {
		return 0, err
	}
	contentSHTML, err := enc.th.Transform(enc.tx.GetSz(&zn.Ast))
	if err != nil {
		return 0, err
	}
	result := sx.Cons(metaSHTML, contentSHTML)
	return result.Print(w)
}

// WriteMeta encodes meta data as s-expression.
func (enc *Encoder) WriteMeta(w io.Writer, m *meta.Meta, evalMeta encoder.EvalMetaFunc) (int, error) {

	metaSHTML, err := enc.th.Transform(enc.tx.GetMeta(m, evalMeta))
	if err != nil {
		return 0, err
	}
	return metaSHTML.Print(w)
}

func (enc *Encoder) WriteContent(w io.Writer, zn *ast.ZettelNode) (int, error) {
	return enc.WriteBlocks(w, &zn.Ast)
}

// WriteBlocks writes a block slice to the writer
func (enc *Encoder) WriteBlocks(w io.Writer, bs *ast.BlockSlice) (int, error) {

	hval, err := enc.th.Transform(enc.tx.GetSz(bs))
	if err != nil {
		return 0, err
	}
	return hval.Print(w)
}

// WriteInlines writes an inline slice to the writer
func (enc *Encoder) WriteInlines(w io.Writer, is *ast.InlineSlice) (int, error) {

	hval, err := enc.th.Transform(enc.tx.GetSz(is))
	if err != nil {
		return 0, err
	}
	return hval.Print(w)
}








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//-----------------------------------------------------------------------------
// Copyright (c) 2023-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2023-present Detlef Stern
//-----------------------------------------------------------------------------

// Package shtmlenc encodes the abstract syntax tree into a s-expr which represents HTML.
package shtmlenc

import (
	"io"

	"t73f.de/r/sx"
	"t73f.de/r/zsc/api"
	"t73f.de/r/zsc/shtml"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/encoder"
	"zettelstore.de/z/encoder/szenc"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	encoder.Register(api.EncoderSHTML, func(params *encoder.CreateParameter) encoder.Encoder { return Create(params) })
}

// Create a SHTML encoder
func Create(params *encoder.CreateParameter) *Encoder {
	// We need a new transformer every time, because tx.inVerse must be unique.
	// If we can refactor it out, the transformer can be created only once.
	return &Encoder{
		tx:   szenc.NewTransformer(),
		th:   shtml.NewEvaluator(1),
		lang: params.Lang,
	}
}

type Encoder struct {
	tx   *szenc.Transformer
	th   *shtml.Evaluator
	lang string
}

// WriteZettel writes the encoded zettel to the writer.
func (enc *Encoder) WriteZettel(w io.Writer, zn *ast.ZettelNode, evalMeta encoder.EvalMetaFunc) (int, error) {
	env := shtml.MakeEnvironment(enc.lang)
	metaSHTML, err := enc.th.Evaluate(enc.tx.GetMeta(zn.InhMeta, evalMeta), &env)
	if err != nil {
		return 0, err
	}
	contentSHTML, err := enc.th.Evaluate(enc.tx.GetSz(&zn.Ast), &env)
	if err != nil {
		return 0, err
	}
	result := sx.Cons(metaSHTML, contentSHTML)
	return result.Print(w)
}

// WriteMeta encodes meta data as s-expression.
func (enc *Encoder) WriteMeta(w io.Writer, m *meta.Meta, evalMeta encoder.EvalMetaFunc) (int, error) {
	env := shtml.MakeEnvironment(enc.lang)
	metaSHTML, err := enc.th.Evaluate(enc.tx.GetMeta(m, evalMeta), &env)
	if err != nil {
		return 0, err
	}
	return sx.Print(w, metaSHTML)
}

func (enc *Encoder) WriteContent(w io.Writer, zn *ast.ZettelNode) (int, error) {
	return enc.WriteBlocks(w, &zn.Ast)
}

// WriteBlocks writes a block slice to the writer
func (enc *Encoder) WriteBlocks(w io.Writer, bs *ast.BlockSlice) (int, error) {
	env := shtml.MakeEnvironment(enc.lang)
	hval, err := enc.th.Evaluate(enc.tx.GetSz(bs), &env)
	if err != nil {
		return 0, err
	}
	return sx.Print(w, hval)
}

// WriteInlines writes an inline slice to the writer
func (enc *Encoder) WriteInlines(w io.Writer, is *ast.InlineSlice) (int, error) {
	env := shtml.MakeEnvironment(enc.lang)
	hval, err := enc.th.Evaluate(enc.tx.GetSz(is), &env)
	if err != nil {
		return 0, err
	}
	return sx.Print(w, hval)
}

Changes to encoder/szenc/szenc.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package szenc encodes the abstract syntax tree into a s-expr for zettel.
package szenc

import (
	"io"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/sx.fossil"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/encoder"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	encoder.Register(api.EncoderSz, func() encoder.Encoder { return Create() })
}

// Create a S-expr encoder
func Create() *Encoder {
	// We need a new transformer every time, because trans.inVerse must be unique.
	// If we can refactor it out, the transformer can be created only once.
	return &Encoder{trans: NewTransformer()}








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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2022-present Detlef Stern
//-----------------------------------------------------------------------------

// Package szenc encodes the abstract syntax tree into a s-expr for zettel.
package szenc

import (
	"io"

	"t73f.de/r/sx"
	"t73f.de/r/zsc/api"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/encoder"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	encoder.Register(api.EncoderSz, func(*encoder.CreateParameter) encoder.Encoder { return Create() })
}

// Create a S-expr encoder
func Create() *Encoder {
	// We need a new transformer every time, because trans.inVerse must be unique.
	// If we can refactor it out, the transformer can be created only once.
	return &Encoder{trans: NewTransformer()}

Changes to encoder/szenc/transform.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package szenc

import (
	"encoding/base64"
	"fmt"
	"strings"

	"zettelstore.de/client.fossil/attrs"
	"zettelstore.de/client.fossil/sz"
	"zettelstore.de/sx.fossil"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/encoder"
	"zettelstore.de/z/zettel/meta"
)

// NewTransformer returns a new transformer to create s-expressions from AST nodes.
func NewTransformer() *Transformer {
	sf := sx.MakeMappedFactory(1024)
	t := Transformer{sf: sf}
	t.zetSyms.InitializeZettelSymbols(sf)

	t.mapVerbatimKindS = map[ast.VerbatimKind]*sx.Symbol{
		ast.VerbatimZettel:  t.zetSyms.SymVerbatimZettel,
		ast.VerbatimProg:    t.zetSyms.SymVerbatimProg,
		ast.VerbatimEval:    t.zetSyms.SymVerbatimEval,
		ast.VerbatimMath:    t.zetSyms.SymVerbatimMath,
		ast.VerbatimComment: t.zetSyms.SymVerbatimComment,
		ast.VerbatimHTML:    t.zetSyms.SymVerbatimHTML,
	}

	t.mapRegionKindS = map[ast.RegionKind]*sx.Symbol{
		ast.RegionSpan:  t.zetSyms.SymRegionBlock,
		ast.RegionQuote: t.zetSyms.SymRegionQuote,
		ast.RegionVerse: t.zetSyms.SymRegionVerse,
	}
	t.mapNestedListKindS = map[ast.NestedListKind]*sx.Symbol{
		ast.NestedListOrdered:   t.zetSyms.SymListOrdered,
		ast.NestedListUnordered: t.zetSyms.SymListUnordered,
		ast.NestedListQuote:     t.zetSyms.SymListQuote,
	}
	t.alignmentSymbolS = map[ast.Alignment]*sx.Symbol{
		ast.AlignDefault: t.zetSyms.SymCell,
		ast.AlignLeft:    t.zetSyms.SymCellLeft,
		ast.AlignCenter:  t.zetSyms.SymCellCenter,
		ast.AlignRight:   t.zetSyms.SymCellRight,
	}
	t.mapRefStateLink = map[ast.RefState]*sx.Symbol{
		ast.RefStateInvalid:  t.zetSyms.SymLinkInvalid,
		ast.RefStateZettel:   t.zetSyms.SymLinkZettel,
		ast.RefStateSelf:     t.zetSyms.SymLinkSelf,
		ast.RefStateFound:    t.zetSyms.SymLinkFound,
		ast.RefStateBroken:   t.zetSyms.SymLinkBroken,
		ast.RefStateHosted:   t.zetSyms.SymLinkHosted,
		ast.RefStateBased:    t.zetSyms.SymLinkBased,
		ast.RefStateQuery:    t.zetSyms.SymLinkQuery,
		ast.RefStateExternal: t.zetSyms.SymLinkExternal,
	}
	t.mapFormatKindS = map[ast.FormatKind]*sx.Symbol{
		ast.FormatEmph:   t.zetSyms.SymFormatEmph,
		ast.FormatStrong: t.zetSyms.SymFormatStrong,
		ast.FormatDelete: t.zetSyms.SymFormatDelete,
		ast.FormatInsert: t.zetSyms.SymFormatInsert,
		ast.FormatSuper:  t.zetSyms.SymFormatSuper,
		ast.FormatSub:    t.zetSyms.SymFormatSub,
		ast.FormatQuote:  t.zetSyms.SymFormatQuote,
		ast.FormatSpan:   t.zetSyms.SymFormatSpan,
	}
	t.mapLiteralKindS = map[ast.LiteralKind]*sx.Symbol{
		ast.LiteralZettel:  t.zetSyms.SymLiteralZettel,
		ast.LiteralProg:    t.zetSyms.SymLiteralProg,
		ast.LiteralInput:   t.zetSyms.SymLiteralInput,
		ast.LiteralOutput:  t.zetSyms.SymLiteralOutput,
		ast.LiteralComment: t.zetSyms.SymLiteralComment,
		ast.LiteralHTML:    t.zetSyms.SymLiteralHTML,
		ast.LiteralMath:    t.zetSyms.SymLiteralMath,
	}
	t.mapRefStateS = map[ast.RefState]*sx.Symbol{
		ast.RefStateInvalid:  t.zetSyms.SymRefStateInvalid,
		ast.RefStateZettel:   t.zetSyms.SymRefStateZettel,
		ast.RefStateSelf:     t.zetSyms.SymRefStateSelf,
		ast.RefStateFound:    t.zetSyms.SymRefStateFound,
		ast.RefStateBroken:   t.zetSyms.SymRefStateBroken,
		ast.RefStateHosted:   t.zetSyms.SymRefStateHosted,
		ast.RefStateBased:    t.zetSyms.SymRefStateBased,
		ast.RefStateQuery:    t.zetSyms.SymRefStateQuery,
		ast.RefStateExternal: t.zetSyms.SymRefStateExternal,
	}
	t.mapMetaTypeS = map[*meta.DescriptionType]*sx.Symbol{
		meta.TypeCredential:   t.zetSyms.SymTypeCredential,
		meta.TypeEmpty:        t.zetSyms.SymTypeEmpty,
		meta.TypeID:           t.zetSyms.SymTypeID,
		meta.TypeIDSet:        t.zetSyms.SymTypeIDSet,
		meta.TypeNumber:       t.zetSyms.SymTypeNumber,
		meta.TypeString:       t.zetSyms.SymTypeString,
		meta.TypeTagSet:       t.zetSyms.SymTypeTagSet,
		meta.TypeTimestamp:    t.zetSyms.SymTypeTimestamp,
		meta.TypeURL:          t.zetSyms.SymTypeURL,
		meta.TypeWord:         t.zetSyms.SymTypeWord,
		meta.TypeWordSet:      t.zetSyms.SymTypeWordSet,
		meta.TypeZettelmarkup: t.zetSyms.SymTypeZettelmarkup,
	}
	return &t
}

type Transformer struct {
	sf                 sx.SymbolFactory
	zetSyms            sz.ZettelSymbols
	mapVerbatimKindS   map[ast.VerbatimKind]*sx.Symbol
	mapRegionKindS     map[ast.RegionKind]*sx.Symbol
	mapNestedListKindS map[ast.NestedListKind]*sx.Symbol
	alignmentSymbolS   map[ast.Alignment]*sx.Symbol
	mapRefStateLink    map[ast.RefState]*sx.Symbol
	mapFormatKindS     map[ast.FormatKind]*sx.Symbol
	mapLiteralKindS    map[ast.LiteralKind]*sx.Symbol
	mapRefStateS       map[ast.RefState]*sx.Symbol
	mapMetaTypeS       map[*meta.DescriptionType]*sx.Symbol
	inVerse            bool
}

func (t *Transformer) GetSz(node ast.Node) *sx.Pair {
	switch n := node.(type) {
	case *ast.BlockSlice:
		return t.getBlockSlice(n)
	case *ast.InlineSlice:
		return t.getInlineSlice(*n)
	case *ast.ParaNode:
		return t.getInlineSlice(n.Inlines).Tail().Cons(t.zetSyms.SymPara)
	case *ast.VerbatimNode:
		return sx.MakeList(
			mapGetS(t, t.mapVerbatimKindS, n.Kind),
			t.getAttributes(n.Attrs),
			sx.String(string(n.Content)),
		)
	case *ast.RegionNode:
		return t.getRegion(n)
	case *ast.HeadingNode:
		return sx.MakeList(
			t.zetSyms.SymHeading,
			sx.Int64(int64(n.Level)),
			t.getAttributes(n.Attrs),
			sx.String(n.Slug),
			sx.String(n.Fragment),
			t.getInlineSlice(n.Inlines),
		)
	case *ast.HRuleNode:
		return sx.MakeList(t.zetSyms.SymThematic, t.getAttributes(n.Attrs))
	case *ast.NestedListNode:
		return t.getNestedList(n)
	case *ast.DescriptionListNode:
		return t.getDescriptionList(n)
	case *ast.TableNode:
		return t.getTable(n)
	case *ast.TranscludeNode:
		return sx.MakeList(t.zetSyms.SymTransclude, t.getAttributes(n.Attrs), t.getReference(n.Ref))
	case *ast.BLOBNode:
		return t.getBLOB(n)
	case *ast.TextNode:
		return sx.MakeList(t.zetSyms.SymText, sx.String(n.Text))
	case *ast.SpaceNode:
		if t.inVerse {
			return sx.MakeList(t.zetSyms.SymSpace, sx.String(n.Lexeme))
		}
		return sx.MakeList(t.zetSyms.SymSpace)
	case *ast.BreakNode:
		if n.Hard {
			return sx.MakeList(t.zetSyms.SymHard)
		}
		return sx.MakeList(t.zetSyms.SymSoft)
	case *ast.LinkNode:
		return t.getLink(n)
	case *ast.EmbedRefNode:
		return t.getInlineSlice(n.Inlines).Tail().
			Cons(sx.String(n.Syntax)).
			Cons(t.getReference(n.Ref)).
			Cons(t.getAttributes(n.Attrs)).
			Cons(t.zetSyms.SymEmbed)
	case *ast.EmbedBLOBNode:
		return t.getEmbedBLOB(n)
	case *ast.CiteNode:
		return t.getInlineSlice(n.Inlines).Tail().
			Cons(sx.String(n.Key)).
			Cons(t.getAttributes(n.Attrs)).
			Cons(t.zetSyms.SymCite)
	case *ast.FootnoteNode:
		text := sx.Nil().Cons(sx.Nil().Cons(t.getInlineSlice(n.Inlines)).Cons(t.zetSyms.SymQuote))
		return text.Cons(t.getAttributes(n.Attrs)).Cons(t.zetSyms.SymEndnote)
	case *ast.MarkNode:
		return t.getInlineSlice(n.Inlines).Tail().
			Cons(sx.String(n.Fragment)).
			Cons(sx.String(n.Slug)).
			Cons(sx.String(n.Mark)).
			Cons(t.zetSyms.SymMark)
	case *ast.FormatNode:
		return t.getInlineSlice(n.Inlines).Tail().
			Cons(t.getAttributes(n.Attrs)).
			Cons(mapGetS(t, t.mapFormatKindS, n.Kind))
	case *ast.LiteralNode:
		return sx.MakeList(
			mapGetS(t, t.mapLiteralKindS, n.Kind),
			t.getAttributes(n.Attrs),
			sx.String(string(n.Content)),
		)
	}
	return sx.MakeList(t.zetSyms.SymUnknown, sx.String(fmt.Sprintf("%T %v", node, node)))





































}

func (t *Transformer) getRegion(rn *ast.RegionNode) *sx.Pair {
	saveInVerse := t.inVerse
	if rn.Kind == ast.RegionVerse {
		t.inVerse = true
	}
	symBlocks := t.GetSz(&rn.Blocks)
	t.inVerse = saveInVerse
	return sx.MakeList(
		mapGetS(t, t.mapRegionKindS, rn.Kind),
		t.getAttributes(rn.Attrs),
		symBlocks,
		t.GetSz(&rn.Inlines),

	)




}

func (t *Transformer) getNestedList(ln *ast.NestedListNode) *sx.Pair {
	nlistObjs := make([]sx.Object, len(ln.Items)+1)
	nlistObjs[0] = mapGetS(t, t.mapNestedListKindS, ln.Kind)
	isCompact := isCompactList(ln.Items)
	for i, item := range ln.Items {
		if isCompact && len(item) > 0 {
			paragraph := t.GetSz(item[0])
			nlistObjs[i+1] = paragraph.Tail().Cons(t.zetSyms.SymInline)
			continue
		}
		itemObjs := make([]sx.Object, len(item))
		for j, in := range item {
			itemObjs[j] = t.GetSz(in)
		}
		if isCompact {
			nlistObjs[i+1] = sx.MakeList(itemObjs...).Cons(t.zetSyms.SymInline)
		} else {
			nlistObjs[i+1] = sx.MakeList(itemObjs...).Cons(t.zetSyms.SymBlock)
		}
	}
	return sx.MakeList(nlistObjs...)
}
func isCompactList(itemSlice []ast.ItemSlice) bool {
	for _, items := range itemSlice {
		if len(items) > 1 {
			return false
		}
		if len(items) == 1 {
			if _, ok := items[0].(*ast.ParaNode); !ok {
				return false
			}
		}
	}
	return true
}

func (t *Transformer) getDescriptionList(dn *ast.DescriptionListNode) *sx.Pair {
	dlObjs := make([]sx.Object, 2*len(dn.Descriptions)+1)
	dlObjs[0] = t.zetSyms.SymDescription
	for i, def := range dn.Descriptions {
		dlObjs[2*i+1] = t.getInlineSlice(def.Term)
		descObjs := make([]sx.Object, len(def.Descriptions))
		for j, b := range def.Descriptions {
			dVal := make([]sx.Object, len(b))
			for k, dn := range b {
				dVal[k] = t.GetSz(dn)
			}
			descObjs[j] = sx.MakeList(dVal...).Cons(t.zetSyms.SymBlock)
		}
		dlObjs[2*i+2] = sx.MakeList(descObjs...).Cons(t.zetSyms.SymBlock)
	}
	return sx.MakeList(dlObjs...)
}

func (t *Transformer) getTable(tn *ast.TableNode) *sx.Pair {
	tObjs := make([]sx.Object, len(tn.Rows)+2)
	tObjs[0] = t.zetSyms.SymTable
	tObjs[1] = t.getHeader(tn.Header)
	for i, row := range tn.Rows {
		tObjs[i+2] = t.getRow(row)
	}
	return sx.MakeList(tObjs...)
}
func (t *Transformer) getHeader(header ast.TableRow) *sx.Pair {
	if len(header) == 0 {
		return nil
	}
	return t.getRow(header)
}
func (t *Transformer) getRow(row ast.TableRow) *sx.Pair {
	rObjs := make([]sx.Object, len(row))
	for i, cell := range row {
		rObjs[i] = t.getCell(cell)
	}
	return sx.MakeList(rObjs...).Cons(t.zetSyms.SymList)







}

func (t *Transformer) getCell(cell *ast.TableCell) *sx.Pair {
	return t.getInlineSlice(cell.Inlines).Tail().Cons(mapGetS(t, t.alignmentSymbolS, cell.Align))
}

func (t *Transformer) getBLOB(bn *ast.BLOBNode) *sx.Pair {
	var lastObj sx.Object
	if bn.Syntax == meta.SyntaxSVG {
		lastObj = sx.String(string(bn.Blob))
	} else {
		lastObj = getBase64String(bn.Blob)
	}
	return sx.MakeList(
		t.zetSyms.SymBLOB,
		t.getInlineSlice(bn.Description),
		sx.String(bn.Syntax),
		lastObj,
	)
}













func (t *Transformer) getLink(ln *ast.LinkNode) *sx.Pair {
	return t.getInlineSlice(ln.Inlines).Tail().
		Cons(sx.String(ln.Ref.Value)).
		Cons(t.getAttributes(ln.Attrs)).
		Cons(mapGetS(t, t.mapRefStateLink, ln.Ref.State))
}

func (t *Transformer) getEmbedBLOB(en *ast.EmbedBLOBNode) *sx.Pair {
	tail := t.getInlineSlice(en.Inlines).Tail()
	if en.Syntax == meta.SyntaxSVG {
		tail = tail.Cons(sx.String(string(en.Blob)))
	} else {
		tail = tail.Cons(getBase64String(en.Blob))
	}
	return tail.Cons(sx.String(en.Syntax)).Cons(t.getAttributes(en.Attrs)).Cons(t.zetSyms.SymEmbedBLOB)
}

func (t *Transformer) getBlockSlice(bs *ast.BlockSlice) *sx.Pair {
	objs := make([]sx.Object, len(*bs))
	for i, n := range *bs {
		objs[i] = t.GetSz(n)
	}
	return sx.MakeList(objs...).Cons(t.zetSyms.SymBlock)
}
func (t *Transformer) getInlineSlice(is ast.InlineSlice) *sx.Pair {
	objs := make([]sx.Object, len(is))
	for i, n := range is {
		objs[i] = t.GetSz(n)
	}
	return sx.MakeList(objs...).Cons(t.zetSyms.SymInline)
}

func (t *Transformer) getAttributes(a attrs.Attributes) sx.Object {
	if a.IsEmpty() {
		return sx.Nil()
	}
	keys := a.Keys()
	objs := make([]sx.Object, 0, len(keys))
	for _, k := range keys {
		objs = append(objs, sx.Cons(sx.String(k), sx.String(a[k])))
	}
	return sx.Nil().Cons(sx.MakeList(objs...)).Cons(t.zetSyms.SymQuote)
}













func (t *Transformer) getReference(ref *ast.Reference) *sx.Pair {
	return sx.MakeList(
		t.zetSyms.SymQuote,
		sx.MakeList(
			mapGetS(t, t.mapRefStateS, ref.State),
			sx.String(ref.Value),
		),

	)












}

func (t *Transformer) GetMeta(m *meta.Meta, evalMeta encoder.EvalMetaFunc) *sx.Pair {
	pairs := m.ComputedPairs()
	objs := make([]sx.Object, 0, len(pairs))
	for _, p := range pairs {
		key := p.Key
		ty := m.Type(key)
		symType := mapGetS(t, t.mapMetaTypeS, ty)
		var obj sx.Object
		if ty.IsSet {
			setList := meta.ListFromValue(p.Value)
			setObjs := make([]sx.Object, len(setList))
			for i, val := range setList {
				setObjs[i] = sx.String(val)
			}
			obj = sx.MakeList(setObjs...).Cons(t.zetSyms.SymList)
		} else if ty == meta.TypeZettelmarkup {
			is := evalMeta(p.Value)
			obj = t.GetSz(&is)
		} else {
			obj = sx.String(p.Value)
		}
		symKey := sx.MakeList(t.zetSyms.SymQuote, t.sf.MustMake(key))
		objs = append(objs, sx.Nil().Cons(obj).Cons(symKey).Cons(symType))
	}
	return sx.MakeList(objs...).Cons(t.zetSyms.SymMeta)
}

func mapGetS[T comparable](t *Transformer, m map[T]*sx.Symbol, k T) *sx.Symbol {
	if result, found := m[k]; found {
		return result
	}
	return t.sf.MustMake(fmt.Sprintf("**%v:NOT-FOUND**", k))
}

func getBase64String(data []byte) sx.String {
	var sb strings.Builder
	encoder := base64.NewEncoder(base64.StdEncoding, &sb)
	_, err := encoder.Write(data)
	if err == nil {
		err = encoder.Close()
	}
	if err == nil {
		return sx.String(sb.String())
	}
	return sx.String("")
}








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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2022-present Detlef Stern
//-----------------------------------------------------------------------------

package szenc

import (
	"encoding/base64"
	"fmt"
	"strings"

	"t73f.de/r/sx"
	"t73f.de/r/zsc/attrs"
	"t73f.de/r/zsc/sz"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/encoder"
	"zettelstore.de/z/zettel/meta"
)

// NewTransformer returns a new transformer to create s-expressions from AST nodes.
func NewTransformer() *Transformer {

	t := Transformer{}


















































































	return &t
}

type Transformer struct {











	inVerse bool
}

func (t *Transformer) GetSz(node ast.Node) *sx.Pair {
	switch n := node.(type) {
	case *ast.BlockSlice:
		return t.getBlockList(n).Cons(sz.SymBlock)
	case *ast.InlineSlice:
		return t.getInlineList(*n).Cons(sz.SymInline)
	case *ast.ParaNode:
		return t.getInlineList(n.Inlines).Cons(sz.SymPara)
	case *ast.VerbatimNode:
		return sx.MakeList(
			mapGetS(mapVerbatimKindS, n.Kind),
			getAttributes(n.Attrs),
			sx.MakeString(string(n.Content)),
		)
	case *ast.RegionNode:
		return t.getRegion(n)
	case *ast.HeadingNode:
		return t.getInlineList(n.Inlines).
			Cons(sx.MakeString(n.Fragment)).
			Cons(sx.MakeString(n.Slug)).
			Cons(getAttributes(n.Attrs)).
			Cons(sx.Int64(int64(n.Level))).
			Cons(sz.SymHeading)


	case *ast.HRuleNode:
		return sx.MakeList(sz.SymThematic, getAttributes(n.Attrs))
	case *ast.NestedListNode:
		return t.getNestedList(n)
	case *ast.DescriptionListNode:
		return t.getDescriptionList(n)
	case *ast.TableNode:
		return t.getTable(n)
	case *ast.TranscludeNode:
		return sx.MakeList(sz.SymTransclude, getAttributes(n.Attrs), getReference(n.Ref))
	case *ast.BLOBNode:
		return t.getBLOB(n)
	case *ast.TextNode:
		return sx.MakeList(sz.SymText, sx.MakeString(n.Text))
	case *ast.SpaceNode:
		if t.inVerse {
			return sx.MakeList(sz.SymSpace, sx.MakeString(n.Lexeme))
		}
		return sx.MakeList(sz.SymSpace)
	case *ast.BreakNode:
		if n.Hard {
			return sx.MakeList(sz.SymHard)
		}
		return sx.MakeList(sz.SymSoft)
	case *ast.LinkNode:
		return t.getLink(n)
	case *ast.EmbedRefNode:
		return t.getInlineList(n.Inlines).
			Cons(sx.MakeString(n.Syntax)).
			Cons(getReference(n.Ref)).
			Cons(getAttributes(n.Attrs)).
			Cons(sz.SymEmbed)
	case *ast.EmbedBLOBNode:
		return t.getEmbedBLOB(n)
	case *ast.CiteNode:
		return t.getInlineList(n.Inlines).
			Cons(sx.MakeString(n.Key)).
			Cons(getAttributes(n.Attrs)).
			Cons(sz.SymCite)
	case *ast.FootnoteNode:
		// (ENDNODE attrs InlineElement ...)
		return t.getInlineList(n.Inlines).Cons(getAttributes(n.Attrs)).Cons(sz.SymEndnote)
	case *ast.MarkNode:
		return t.getInlineList(n.Inlines).
			Cons(sx.MakeString(n.Fragment)).
			Cons(sx.MakeString(n.Slug)).
			Cons(sx.MakeString(n.Mark)).
			Cons(sz.SymMark)
	case *ast.FormatNode:
		return t.getInlineList(n.Inlines).
			Cons(getAttributes(n.Attrs)).
			Cons(mapGetS(mapFormatKindS, n.Kind))
	case *ast.LiteralNode:
		return sx.MakeList(
			mapGetS(mapLiteralKindS, n.Kind),
			getAttributes(n.Attrs),
			sx.MakeString(string(n.Content)),
		)
	}
	return sx.MakeList(sz.SymUnknown, sx.MakeString(fmt.Sprintf("%T %v", node, node)))
}

var mapVerbatimKindS = map[ast.VerbatimKind]*sx.Symbol{
	ast.VerbatimZettel:  sz.SymVerbatimZettel,
	ast.VerbatimProg:    sz.SymVerbatimProg,
	ast.VerbatimEval:    sz.SymVerbatimEval,
	ast.VerbatimMath:    sz.SymVerbatimMath,
	ast.VerbatimComment: sz.SymVerbatimComment,
	ast.VerbatimHTML:    sz.SymVerbatimHTML,
}

var mapFormatKindS = map[ast.FormatKind]*sx.Symbol{
	ast.FormatEmph:   sz.SymFormatEmph,
	ast.FormatStrong: sz.SymFormatStrong,
	ast.FormatDelete: sz.SymFormatDelete,
	ast.FormatInsert: sz.SymFormatInsert,
	ast.FormatSuper:  sz.SymFormatSuper,
	ast.FormatSub:    sz.SymFormatSub,
	ast.FormatQuote:  sz.SymFormatQuote,
	ast.FormatMark:   sz.SymFormatMark,
	ast.FormatSpan:   sz.SymFormatSpan,
}

var mapLiteralKindS = map[ast.LiteralKind]*sx.Symbol{
	ast.LiteralZettel:  sz.SymLiteralZettel,
	ast.LiteralProg:    sz.SymLiteralProg,
	ast.LiteralInput:   sz.SymLiteralInput,
	ast.LiteralOutput:  sz.SymLiteralOutput,
	ast.LiteralComment: sz.SymLiteralComment,
	ast.LiteralHTML:    sz.SymLiteralHTML,
	ast.LiteralMath:    sz.SymLiteralMath,
}

var mapRegionKindS = map[ast.RegionKind]*sx.Symbol{
	ast.RegionSpan:  sz.SymRegionBlock,
	ast.RegionQuote: sz.SymRegionQuote,
	ast.RegionVerse: sz.SymRegionVerse,
}

func (t *Transformer) getRegion(rn *ast.RegionNode) *sx.Pair {
	saveInVerse := t.inVerse
	if rn.Kind == ast.RegionVerse {
		t.inVerse = true
	}
	symBlocks := t.getBlockList(&rn.Blocks)
	t.inVerse = saveInVerse
	return t.getInlineList(rn.Inlines).
		Cons(symBlocks).
		Cons(getAttributes(rn.Attrs)).

		Cons(mapGetS(mapRegionKindS, rn.Kind))
}

var mapNestedListKindS = map[ast.NestedListKind]*sx.Symbol{
	ast.NestedListOrdered:   sz.SymListOrdered,
	ast.NestedListUnordered: sz.SymListUnordered,
	ast.NestedListQuote:     sz.SymListQuote,
}

func (t *Transformer) getNestedList(ln *ast.NestedListNode) *sx.Pair {
	nlistObjs := make(sx.Vector, len(ln.Items)+1)
	nlistObjs[0] = mapGetS(mapNestedListKindS, ln.Kind)
	isCompact := isCompactList(ln.Items)
	for i, item := range ln.Items {
		if isCompact && len(item) > 0 {
			paragraph := t.GetSz(item[0])
			nlistObjs[i+1] = paragraph.Tail().Cons(sz.SymInline)
			continue
		}
		itemObjs := make(sx.Vector, len(item))
		for j, in := range item {
			itemObjs[j] = t.GetSz(in)
		}
		if isCompact {
			nlistObjs[i+1] = sx.MakeList(itemObjs...).Cons(sz.SymInline)
		} else {
			nlistObjs[i+1] = sx.MakeList(itemObjs...).Cons(sz.SymBlock)
		}
	}
	return sx.MakeList(nlistObjs...)
}
func isCompactList(itemSlice []ast.ItemSlice) bool {
	for _, items := range itemSlice {
		if len(items) > 1 {
			return false
		}
		if len(items) == 1 {
			if _, ok := items[0].(*ast.ParaNode); !ok {
				return false
			}
		}
	}
	return true
}

func (t *Transformer) getDescriptionList(dn *ast.DescriptionListNode) *sx.Pair {
	dlObjs := make(sx.Vector, 2*len(dn.Descriptions)+1)
	dlObjs[0] = sz.SymDescription
	for i, def := range dn.Descriptions {
		dlObjs[2*i+1] = t.getInlineList(def.Term)
		descObjs := make(sx.Vector, len(def.Descriptions))
		for j, b := range def.Descriptions {
			dVal := make(sx.Vector, len(b))
			for k, dn := range b {
				dVal[k] = t.GetSz(dn)
			}
			descObjs[j] = sx.MakeList(dVal...).Cons(sz.SymBlock)
		}
		dlObjs[2*i+2] = sx.MakeList(descObjs...).Cons(sz.SymBlock)
	}
	return sx.MakeList(dlObjs...)
}

func (t *Transformer) getTable(tn *ast.TableNode) *sx.Pair {
	tObjs := make(sx.Vector, len(tn.Rows)+2)
	tObjs[0] = sz.SymTable
	tObjs[1] = t.getHeader(tn.Header)
	for i, row := range tn.Rows {
		tObjs[i+2] = t.getRow(row)
	}
	return sx.MakeList(tObjs...)
}
func (t *Transformer) getHeader(header ast.TableRow) *sx.Pair {
	if len(header) == 0 {
		return nil
	}
	return t.getRow(header)
}
func (t *Transformer) getRow(row ast.TableRow) *sx.Pair {
	rObjs := make(sx.Vector, len(row))
	for i, cell := range row {
		rObjs[i] = t.getCell(cell)
	}
	return sx.MakeList(rObjs...)
}

var alignmentSymbolS = map[ast.Alignment]*sx.Symbol{
	ast.AlignDefault: sz.SymCell,
	ast.AlignLeft:    sz.SymCellLeft,
	ast.AlignCenter:  sz.SymCellCenter,
	ast.AlignRight:   sz.SymCellRight,
}

func (t *Transformer) getCell(cell *ast.TableCell) *sx.Pair {
	return t.getInlineList(cell.Inlines).Cons(mapGetS(alignmentSymbolS, cell.Align))
}

func (t *Transformer) getBLOB(bn *ast.BLOBNode) *sx.Pair {
	var lastObj sx.Object
	if bn.Syntax == meta.SyntaxSVG {
		lastObj = sx.MakeString(string(bn.Blob))
	} else {
		lastObj = getBase64String(bn.Blob)
	}
	return sx.MakeList(
		sz.SymBLOB,
		t.getInlineList(bn.Description),
		sx.MakeString(bn.Syntax),
		lastObj,
	)
}

var mapRefStateLink = map[ast.RefState]*sx.Symbol{
	ast.RefStateInvalid:  sz.SymLinkInvalid,
	ast.RefStateZettel:   sz.SymLinkZettel,
	ast.RefStateSelf:     sz.SymLinkSelf,
	ast.RefStateFound:    sz.SymLinkFound,
	ast.RefStateBroken:   sz.SymLinkBroken,
	ast.RefStateHosted:   sz.SymLinkHosted,
	ast.RefStateBased:    sz.SymLinkBased,
	ast.RefStateQuery:    sz.SymLinkQuery,
	ast.RefStateExternal: sz.SymLinkExternal,
}

func (t *Transformer) getLink(ln *ast.LinkNode) *sx.Pair {
	return t.getInlineList(ln.Inlines).
		Cons(sx.MakeString(ln.Ref.Value)).
		Cons(getAttributes(ln.Attrs)).
		Cons(mapGetS(mapRefStateLink, ln.Ref.State))
}

func (t *Transformer) getEmbedBLOB(en *ast.EmbedBLOBNode) *sx.Pair {
	tail := t.getInlineList(en.Inlines)
	if en.Syntax == meta.SyntaxSVG {
		tail = tail.Cons(sx.MakeString(string(en.Blob)))
	} else {
		tail = tail.Cons(getBase64String(en.Blob))
	}
	return tail.Cons(sx.MakeString(en.Syntax)).Cons(getAttributes(en.Attrs)).Cons(sz.SymEmbedBLOB)
}

func (t *Transformer) getBlockList(bs *ast.BlockSlice) *sx.Pair {
	objs := make(sx.Vector, len(*bs))
	for i, n := range *bs {
		objs[i] = t.GetSz(n)
	}
	return sx.MakeList(objs...)
}
func (t *Transformer) getInlineList(is ast.InlineSlice) *sx.Pair {
	objs := make(sx.Vector, len(is))
	for i, n := range is {
		objs[i] = t.GetSz(n)
	}
	return sx.MakeList(objs...)
}

func getAttributes(a attrs.Attributes) sx.Object {
	if a.IsEmpty() {
		return sx.Nil()
	}
	keys := a.Keys()
	objs := make(sx.Vector, 0, len(keys))
	for _, k := range keys {
		objs = append(objs, sx.Cons(sx.MakeString(k), sx.MakeString(a[k])))
	}
	return sx.MakeList(objs...)
}

var mapRefStateS = map[ast.RefState]*sx.Symbol{
	ast.RefStateInvalid:  sz.SymRefStateInvalid,
	ast.RefStateZettel:   sz.SymRefStateZettel,
	ast.RefStateSelf:     sz.SymRefStateSelf,
	ast.RefStateFound:    sz.SymRefStateFound,
	ast.RefStateBroken:   sz.SymRefStateBroken,
	ast.RefStateHosted:   sz.SymRefStateHosted,
	ast.RefStateBased:    sz.SymRefStateBased,
	ast.RefStateQuery:    sz.SymRefStateQuery,
	ast.RefStateExternal: sz.SymRefStateExternal,
}

func getReference(ref *ast.Reference) *sx.Pair {
	return sx.MakeList(mapGetS(mapRefStateS, ref.State), sx.MakeString(ref.Value))





}

var mapMetaTypeS = map[*meta.DescriptionType]*sx.Symbol{
	meta.TypeCredential:   sz.SymTypeCredential,
	meta.TypeEmpty:        sz.SymTypeEmpty,
	meta.TypeID:           sz.SymTypeID,
	meta.TypeIDSet:        sz.SymTypeIDSet,
	meta.TypeNumber:       sz.SymTypeNumber,
	meta.TypeString:       sz.SymTypeString,
	meta.TypeTagSet:       sz.SymTypeTagSet,
	meta.TypeTimestamp:    sz.SymTypeTimestamp,
	meta.TypeURL:          sz.SymTypeURL,
	meta.TypeWord:         sz.SymTypeWord,
	meta.TypeZettelmarkup: sz.SymTypeZettelmarkup,
}

func (t *Transformer) GetMeta(m *meta.Meta, evalMeta encoder.EvalMetaFunc) *sx.Pair {
	pairs := m.ComputedPairs()
	objs := make(sx.Vector, 0, len(pairs))
	for _, p := range pairs {
		key := p.Key
		ty := m.Type(key)
		symType := mapGetS(mapMetaTypeS, ty)
		var obj sx.Object
		if ty.IsSet {
			setList := meta.ListFromValue(p.Value)
			setObjs := make(sx.Vector, len(setList))
			for i, val := range setList {
				setObjs[i] = sx.MakeString(val)
			}
			obj = sx.MakeList(setObjs...)
		} else if ty == meta.TypeZettelmarkup {
			is := evalMeta(p.Value)
			obj = t.getInlineList(is)
		} else {
			obj = sx.MakeString(p.Value)
		}

		objs = append(objs, sx.Nil().Cons(obj).Cons(sx.MakeSymbol(key)).Cons(symType))
	}
	return sx.MakeList(objs...).Cons(sz.SymMeta)
}

func mapGetS[T comparable](m map[T]*sx.Symbol, k T) *sx.Symbol {
	if result, found := m[k]; found {
		return result
	}
	return sx.MakeSymbol(fmt.Sprintf("**%v:NOT-FOUND**", k))
}

func getBase64String(data []byte) sx.String {
	var sb strings.Builder
	encoder := base64.NewEncoder(base64.StdEncoding, &sb)
	_, err := encoder.Write(data)
	if err == nil {
		err = encoder.Close()
	}
	if err == nil {
		return sx.MakeString(sb.String())
	}
	return sx.MakeString("")
}

Changes to encoder/textenc/textenc.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package textenc encodes the abstract syntax tree into its text.
package textenc

import (
	"io"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/encoder"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	encoder.Register(api.EncoderText, func() encoder.Encoder { return Create() })
}

// Create an encoder.
func Create() *Encoder { return &myTE }

type Encoder struct{}









>
>
>








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

// Package textenc encodes the abstract syntax tree into its text.
package textenc

import (
	"io"

	"t73f.de/r/zsc/api"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/encoder"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	encoder.Register(api.EncoderText, func(*encoder.CreateParameter) encoder.Encoder { return Create() })
}

// Create an encoder.
func Create() *Encoder { return &myTE }

type Encoder struct{}

Changes to encoder/write.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package encoder

import (
	"encoding/base64"
	"io"








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package encoder

import (
	"encoding/base64"
	"io"

Changes to encoder/zmkenc/zmkenc.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package zmkenc encodes the abstract syntax tree back into Zettelmarkup.
package zmkenc

import (
	"fmt"
	"io"
	"strings"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/client.fossil/attrs"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/encoder"
	"zettelstore.de/z/encoder/textenc"
	"zettelstore.de/z/strfun"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	encoder.Register(api.EncoderZmk, func() encoder.Encoder { return Create() })
}

// Create an encoder.
func Create() *Encoder { return &myZE }

type Encoder struct{}









>
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>










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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

// Package zmkenc encodes the abstract syntax tree back into Zettelmarkup.
package zmkenc

import (
	"fmt"
	"io"
	"strings"

	"t73f.de/r/zsc/api"
	"t73f.de/r/zsc/attrs"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/encoder"
	"zettelstore.de/z/encoder/textenc"
	"zettelstore.de/z/strfun"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	encoder.Register(api.EncoderZmk, func(*encoder.CreateParameter) encoder.Encoder { return Create() })
}

// Create an encoder.
func Create() *Encoder { return &myZE }

type Encoder struct{}

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	}
	var sb strings.Builder
	v.textEnc.WriteInlines(&sb, &bn.Description)
	v.b.WriteStrings("%% Unable to display BLOB with description '", sb.String(), "' and syntax '", bn.Syntax, "'.")
}

var escapeSeqs = strfun.NewSet(
	"\\", "__", "**", "~~", "^^", ",,", ">>", `""`, "::", "''", "``", "++", "==",
)

func (v *visitor) visitText(tn *ast.TextNode) {
	last := 0
	for i := 0; i < len(tn.Text); i++ {
		if b := tn.Text[i]; b == '\\' {
			v.b.WriteString(tn.Text[last:i])
			v.b.WriteBytes('\\', b)
			last = i + 1
			continue
		}
		if i < len(tn.Text)-1 {
			s := tn.Text[i : i+2]
			if escapeSeqs.Has(s) {
				v.b.WriteString(tn.Text[last:i])
				for j := 0; j < len(s); j++ {
					v.b.WriteBytes('\\', s[j])
				}
				i++
				last = i + 1
				continue
			}
		}







|















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	}
	var sb strings.Builder
	v.textEnc.WriteInlines(&sb, &bn.Description)
	v.b.WriteStrings("%% Unable to display BLOB with description '", sb.String(), "' and syntax '", bn.Syntax, "'.")
}

var escapeSeqs = strfun.NewSet(
	"\\", "__", "**", "~~", "^^", ",,", ">>", `""`, "::", "''", "``", "++", "==", "##",
)

func (v *visitor) visitText(tn *ast.TextNode) {
	last := 0
	for i := 0; i < len(tn.Text); i++ {
		if b := tn.Text[i]; b == '\\' {
			v.b.WriteString(tn.Text[last:i])
			v.b.WriteBytes('\\', b)
			last = i + 1
			continue
		}
		if i < len(tn.Text)-1 {
			s := tn.Text[i : i+2]
			if escapeSeqs.Has(s) {
				v.b.WriteString(tn.Text[last:i])
				for j := range len(s) {
					v.b.WriteBytes('\\', s[j])
				}
				i++
				last = i + 1
				continue
			}
		}
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	ast.FormatEmph:   []byte("__"),
	ast.FormatStrong: []byte("**"),
	ast.FormatInsert: []byte(">>"),
	ast.FormatDelete: []byte("~~"),
	ast.FormatSuper:  []byte("^^"),
	ast.FormatSub:    []byte(",,"),
	ast.FormatQuote:  []byte(`""`),

	ast.FormatSpan:   []byte("::"),
}

func (v *visitor) visitFormat(fn *ast.FormatNode) {
	kind, ok := mapFormatKind[fn.Kind]
	if !ok {
		panic(fmt.Sprintf("Unknown format kind %d", fn.Kind))







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	ast.FormatEmph:   []byte("__"),
	ast.FormatStrong: []byte("**"),
	ast.FormatInsert: []byte(">>"),
	ast.FormatDelete: []byte("~~"),
	ast.FormatSuper:  []byte("^^"),
	ast.FormatSub:    []byte(",,"),
	ast.FormatQuote:  []byte(`""`),
	ast.FormatMark:   []byte("##"),
	ast.FormatSpan:   []byte("::"),
}

func (v *visitor) visitFormat(fn *ast.FormatNode) {
	kind, ok := mapFormatKind[fn.Kind]
	if !ok {
		panic(fmt.Sprintf("Unknown format kind %d", fn.Kind))
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		}
	}
	v.b.WriteByte('}')
}

func (v *visitor) writeEscaped(s string, toEscape byte) {
	last := 0
	for i := 0; i < len(s); i++ {
		if b := s[i]; b == toEscape || b == '\\' {
			v.b.WriteString(s[last:i])
			v.b.WriteBytes('\\', b)
			last = i + 1
		}
	}
	v.b.WriteString(s[last:])
}

func syntaxToHTML(a attrs.Attributes) attrs.Attributes {
	return a.Clone().Set("", meta.SyntaxHTML).Remove(api.KeySyntax)
}







|












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		}
	}
	v.b.WriteByte('}')
}

func (v *visitor) writeEscaped(s string, toEscape byte) {
	last := 0
	for i := range len(s) {
		if b := s[i]; b == toEscape || b == '\\' {
			v.b.WriteString(s[last:i])
			v.b.WriteBytes('\\', b)
			last = i + 1
		}
	}
	v.b.WriteString(s[last:])
}

func syntaxToHTML(a attrs.Attributes) attrs.Attributes {
	return a.Clone().Set("", meta.SyntaxHTML).Remove(api.KeySyntax)
}

Changes to encoding/atom/atom.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package atom provides an Atom encoding.
package atom

import (
	"bytes"
	"time"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/config"
	"zettelstore.de/z/encoding"
	"zettelstore.de/z/encoding/xml"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/query"
	"zettelstore.de/z/strfun"
	"zettelstore.de/z/zettel/id"








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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2022-present Detlef Stern
//-----------------------------------------------------------------------------

// Package atom provides an Atom encoding.
package atom

import (
	"bytes"
	"time"

	"t73f.de/r/zsc/api"
	"zettelstore.de/z/config"
	"zettelstore.de/z/encoding"
	"zettelstore.de/z/encoding/xml"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/query"
	"zettelstore.de/z/strfun"
	"zettelstore.de/z/zettel/id"
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	buf.WriteString("</feed>")
	return buf.Bytes()
}

func (c *Configuration) marshalMeta(buf *bytes.Buffer, m *meta.Meta) {
	entryUpdated := ""
	if val, found := m.Get(api.KeyPublished); found {
		if published, err := time.ParseInLocation(id.ZidLayout, val, time.Local); err == nil {
			entryUpdated = published.UTC().Format(time.RFC3339)
		}
	}

	link := c.NewURLBuilderAbs().SetZid(api.ZettelID(m.Zid.String())).String()

	buf.WriteString("  <entry>\n")
	xml.WriteTag(buf, "    ", "title", encoding.TitleAsText(m))
	xml.WriteTag(buf, "    ", "id", link)
	buf.WriteString(`    <link rel="self" href="`)
	strfun.XMLEscape(buf, link)
	buf.WriteString(`"/>` + "\n")







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	buf.WriteString("</feed>")
	return buf.Bytes()
}

func (c *Configuration) marshalMeta(buf *bytes.Buffer, m *meta.Meta) {
	entryUpdated := ""
	if val, found := m.Get(api.KeyPublished); found {
		if published, err := time.ParseInLocation(id.TimestampLayout, val, time.Local); err == nil {
			entryUpdated = published.UTC().Format(time.RFC3339)
		}
	}

	link := c.NewURLBuilderAbs().SetZid(m.Zid.ZettelID()).String()

	buf.WriteString("  <entry>\n")
	xml.WriteTag(buf, "    ", "title", encoding.TitleAsText(m))
	xml.WriteTag(buf, "    ", "id", link)
	buf.WriteString(`    <link rel="self" href="`)
	strfun.XMLEscape(buf, link)
	buf.WriteString(`"/>` + "\n")

Changes to encoding/encoding.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package encoding provides helper functions for encodings.
package encoding

import (
	"time"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

// LastUpdated returns the formated time of the zettel which was updated at the latest time.
func LastUpdated(ml []*meta.Meta, timeFormat string) string {
	maxPublished := time.Date(1, time.January, 1, 0, 0, 0, 0, time.Local)
	for _, m := range ml {
		if val, found := m.Get(api.KeyPublished); found {
			if published, err := time.ParseInLocation(id.ZidLayout, val, time.Local); err == nil {
				if maxPublished.Before(published) {
					maxPublished = published
				}
			}
		}
	}
	if maxPublished.Year() > 1 {








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>








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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2022-present Detlef Stern
//-----------------------------------------------------------------------------

// Package encoding provides helper functions for encodings.
package encoding

import (
	"time"

	"t73f.de/r/zsc/api"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

// LastUpdated returns the formated time of the zettel which was updated at the latest time.
func LastUpdated(ml []*meta.Meta, timeFormat string) string {
	maxPublished := time.Date(1, time.January, 1, 0, 0, 0, 0, time.Local)
	for _, m := range ml {
		if val, found := m.Get(api.KeyPublished); found {
			if published, err := time.ParseInLocation(id.TimestampLayout, val, time.Local); err == nil {
				if maxPublished.Before(published) {
					maxPublished = published
				}
			}
		}
	}
	if maxPublished.Year() > 1 {

Changes to encoding/rss/rss.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package rss provides a RSS encoding.
package rss

import (
	"bytes"
	"context"
	"time"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/config"
	"zettelstore.de/z/encoding"
	"zettelstore.de/z/encoding/xml"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/query"
	"zettelstore.de/z/strfun"
	"zettelstore.de/z/zettel/id"








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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2022-present Detlef Stern
//-----------------------------------------------------------------------------

// Package rss provides a RSS encoding.
package rss

import (
	"bytes"
	"context"
	"time"

	"t73f.de/r/zsc/api"
	"zettelstore.de/z/config"
	"zettelstore.de/z/encoding"
	"zettelstore.de/z/encoding/xml"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/query"
	"zettelstore.de/z/strfun"
	"zettelstore.de/z/zettel/id"
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	buf.WriteString("</channel>\n</rss>")
	return buf.Bytes()
}

func (c *Configuration) marshalMeta(buf *bytes.Buffer, m *meta.Meta) {
	itemPublished := ""
	if val, found := m.Get(api.KeyPublished); found {
		if published, err := time.ParseInLocation(id.ZidLayout, val, time.Local); err == nil {
			itemPublished = published.UTC().Format(time.RFC1123Z)
		}
	}

	link := c.NewURLBuilderAbs().SetZid(api.ZettelID(m.Zid.String())).String()

	buf.WriteString("  <item>\n")
	xml.WriteTag(buf, "    ", "title", encoding.TitleAsText(m))
	xml.WriteTag(buf, "    ", "link", link)
	xml.WriteTag(buf, "    ", "guid", link)
	if itemPublished != "" {
		xml.WriteTag(buf, "    ", "pubDate", itemPublished)







|




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	buf.WriteString("</channel>\n</rss>")
	return buf.Bytes()
}

func (c *Configuration) marshalMeta(buf *bytes.Buffer, m *meta.Meta) {
	itemPublished := ""
	if val, found := m.Get(api.KeyPublished); found {
		if published, err := time.ParseInLocation(id.TimestampLayout, val, time.Local); err == nil {
			itemPublished = published.UTC().Format(time.RFC1123Z)
		}
	}

	link := c.NewURLBuilderAbs().SetZid(m.Zid.ZettelID()).String()

	buf.WriteString("  <item>\n")
	xml.WriteTag(buf, "    ", "title", encoding.TitleAsText(m))
	xml.WriteTag(buf, "    ", "link", link)
	xml.WriteTag(buf, "    ", "guid", link)
	if itemPublished != "" {
		xml.WriteTag(buf, "    ", "pubDate", itemPublished)

Changes to encoding/xml/xml.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package xml provides helper for a XML-based encoding.
package xml

import (
	"bytes"








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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2022-present Detlef Stern
//-----------------------------------------------------------------------------

// Package xml provides helper for a XML-based encoding.
package xml

import (
	"bytes"

Changes to evaluator/evaluator.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package evaluator interprets and evaluates the AST.
package evaluator

import (

	"context"
	"errors"
	"fmt"
	"path"
	"strconv"
	"strings"



	"zettelstore.de/client.fossil/api"
	"zettelstore.de/client.fossil/attrs"

	"zettelstore.de/z/ast"
	"zettelstore.de/z/box"
	"zettelstore.de/z/config"
	"zettelstore.de/z/input"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/parser/cleaner"
	"zettelstore.de/z/parser/draw"
	"zettelstore.de/z/query"
	"zettelstore.de/z/zettel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

// Port contains all methods to retrieve zettel (or part of it) to evaluate a zettel.
type Port interface {
	GetZettel(context.Context, id.Zid) (zettel.Zettel, error)
	QueryMeta(ctx context.Context, q *query.Query) ([]*meta.Meta, error)
}

// EvaluateZettel evaluates the given zettel in the given context, with the
// given ports, and the given environment.
func EvaluateZettel(ctx context.Context, port Port, rtConfig config.Config, zn *ast.ZettelNode) {

	if zn.Syntax == meta.SyntaxNone {
		// AST is empty, evaluate to a description list of metadata.
		zn.Ast = evaluateMetadata(zn.Meta)

























		return
	}
	EvaluateBlock(ctx, port, rtConfig, &zn.Ast)




}

// EvaluateBlock evaluates the given block list in the given context, with
// the given ports, and the given environment.
func EvaluateBlock(ctx context.Context, port Port, rtConfig config.Config, bns *ast.BlockSlice) {
	evaluateNode(ctx, port, rtConfig, bns)
	cleaner.CleanBlockSlice(bns, true)








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

// Package evaluator interprets and evaluates the AST.
package evaluator

import (
	"bytes"
	"context"
	"errors"
	"fmt"
	"path"
	"strconv"
	"strings"

	"t73f.de/r/sx/sxbuiltins"
	"t73f.de/r/sx/sxreader"
	"t73f.de/r/zsc/api"
	"t73f.de/r/zsc/attrs"
	"t73f.de/r/zsc/input"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/box"
	"zettelstore.de/z/config"

	"zettelstore.de/z/parser"
	"zettelstore.de/z/parser/cleaner"
	"zettelstore.de/z/parser/draw"
	"zettelstore.de/z/query"
	"zettelstore.de/z/zettel"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
)

// Port contains all methods to retrieve zettel (or part of it) to evaluate a zettel.
type Port interface {
	GetZettel(context.Context, id.Zid) (zettel.Zettel, error)
	QueryMeta(ctx context.Context, q *query.Query) ([]*meta.Meta, error)
}

// EvaluateZettel evaluates the given zettel in the given context, with the
// given ports, and the given environment.
func EvaluateZettel(ctx context.Context, port Port, rtConfig config.Config, zn *ast.ZettelNode) {
	switch zn.Syntax {
	case meta.SyntaxNone:
		// AST is empty, evaluate to a description list of metadata.
		zn.Ast = evaluateMetadata(zn.Meta)
	case meta.SyntaxSxn:
		zn.Ast = evaluateSxn(zn.Ast)
	default:
		EvaluateBlock(ctx, port, rtConfig, &zn.Ast)
	}
}

func evaluateSxn(bs ast.BlockSlice) ast.BlockSlice {
	// Check for structure made in parser/plain/plain.go:parseSxnBlocks
	if len(bs) == 1 {
		// If len(bs) > 1 --> an error was found during parsing
		if vn, isVerbatim := bs[0].(*ast.VerbatimNode); isVerbatim && vn.Kind == ast.VerbatimProg {
			if classAttr, hasClass := vn.Attrs.Get(""); hasClass && classAttr == meta.SyntaxSxn {
				rd := sxreader.MakeReader(bytes.NewReader(vn.Content))
				if objs, err := rd.ReadAll(); err == nil {
					result := make(ast.BlockSlice, len(objs))
					for i, obj := range objs {
						var buf bytes.Buffer
						sxbuiltins.Print(&buf, obj)
						result[i] = &ast.VerbatimNode{
							Kind:    ast.VerbatimProg,
							Attrs:   attrs.Attributes{"": classAttr},
							Content: buf.Bytes(),
						}
					}
					return result
				}

			}
		}
	}
	return bs
}

// EvaluateBlock evaluates the given block list in the given context, with
// the given ports, and the given environment.
func EvaluateBlock(ctx context.Context, port Port, rtConfig config.Config, bns *ast.BlockSlice) {
	evaluateNode(ctx, port, rtConfig, bns)
	cleaner.CleanBlockSlice(bns, true)
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	ml, err := e.port.QueryMeta(e.ctx, q)
	if err != nil {
		if errors.Is(err, &box.ErrNotAllowed{}) {
			return nil
		}
		return makeBlockNode(createInlineErrorText(nil, "Unable", "to", "search", "zettel"))
	}
	result := QueryAction(e.ctx, q, ml, e.rtConfig)
	if result != nil {
		ast.Walk(e, result)
	}
	return result
}

func (e *evaluator) checkMaxTransclusions(ref *ast.Reference) ast.InlineNode {







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	ml, err := e.port.QueryMeta(e.ctx, q)
	if err != nil {
		if errors.Is(err, &box.ErrNotAllowed{}) {
			return nil
		}
		return makeBlockNode(createInlineErrorText(nil, "Unable", "to", "search", "zettel"))
	}
	result, _ := QueryAction(e.ctx, q, ml, e.rtConfig)
	if result != nil {
		ast.Walk(e, result)
	}
	return result
}

func (e *evaluator) checkMaxTransclusions(ref *ast.Reference) ast.InlineNode {
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		if errors.Is(err, &box.ErrNotAllowed{}) {
			return nil
		}
		e.transcludeCount++
		return createInlineErrorImage(en)
	}

	if syntax := zettel.Meta.GetDefault(api.KeySyntax, ""); parser.IsImageFormat(syntax) {
		e.updateImageRefNode(en, zettel.Meta, syntax)
		return en
	} else if !parser.IsASTParser(syntax) {
		// Not embeddable.
		e.transcludeCount++
		return createInlineErrorText(ref, "Not", "embeddable (syntax="+syntax+")")
	}







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		if errors.Is(err, &box.ErrNotAllowed{}) {
			return nil
		}
		e.transcludeCount++
		return createInlineErrorImage(en)
	}

	if syntax := zettel.Meta.GetDefault(api.KeySyntax, meta.DefaultSyntax); parser.IsImageFormat(syntax) {
		e.updateImageRefNode(en, zettel.Meta, syntax)
		return en
	} else if !parser.IsASTParser(syntax) {
		// Not embeddable.
		e.transcludeCount++
		return createInlineErrorText(ref, "Not", "embeddable (syntax="+syntax+")")
	}
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func (e *evaluator) evaluateEmbeddedInline(content []byte, syntax string) ast.InlineSlice {
	is := parser.ParseInlines(input.NewInput(content), syntax)
	ast.Walk(e, &is)
	return is
}

func (e *evaluator) evaluateEmbeddedZettel(zettel zettel.Zettel) *ast.ZettelNode {
	zn := parser.ParseZettel(e.ctx, zettel, zettel.Meta.GetDefault(api.KeySyntax, ""), e.rtConfig)
	ast.Walk(e, &zn.Ast)
	return zn
}

func findInlineSlice(bs *ast.BlockSlice, fragment string) ast.InlineSlice {
	if fragment == "" {
		return firstInlinesToEmbed(*bs)







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func (e *evaluator) evaluateEmbeddedInline(content []byte, syntax string) ast.InlineSlice {
	is := parser.ParseInlines(input.NewInput(content), syntax)
	ast.Walk(e, &is)
	return is
}

func (e *evaluator) evaluateEmbeddedZettel(zettel zettel.Zettel) *ast.ZettelNode {
	zn := parser.ParseZettel(e.ctx, zettel, zettel.Meta.GetDefault(api.KeySyntax, meta.DefaultSyntax), e.rtConfig)
	ast.Walk(e, &zn.Ast)
	return zn
}

func findInlineSlice(bs *ast.BlockSlice, fragment string) ast.InlineSlice {
	if fragment == "" {
		return firstInlinesToEmbed(*bs)

Changes to evaluator/list.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package evaluator

import (
	"bytes"
	"context"
	"math"
	"sort"
	"strconv"
	"strings"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/client.fossil/attrs"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/config"
	"zettelstore.de/z/encoding/atom"
	"zettelstore.de/z/encoding/rss"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/query"
	"zettelstore.de/z/zettel/meta"
)

// QueryAction transforms a list of metadata according to query actions into a AST nested list.
func QueryAction(ctx context.Context, q *query.Query, ml []*meta.Meta, rtConfig config.Config) ast.BlockNode {
	ap := actionPara{
		ctx:   ctx,
		q:     q,
		ml:    ml,
		kind:  ast.NestedListUnordered,
		min:   -1,
		max:   -1,
		title: rtConfig.GetSiteName(),
	}
	actions := q.Actions()
	if len(actions) == 0 {
		return ap.createBlockNodeMeta("")
	}

	acts := make([]string, 0, len(actions))
	for i, act := range actions {
		if strings.HasPrefix(act, "N") {
			ap.kind = ast.NestedListOrdered
			continue
		}
		if strings.HasPrefix(act, "MIN") {
			if num, err := strconv.Atoi(act[3:]); err == nil && num > 0 {
				ap.min = num
				continue
			}
		}
		if strings.HasPrefix(act, "MAX") {
			if num, err := strconv.Atoi(act[3:]); err == nil && num > 0 {
				ap.max = num
				continue
			}
		}
		if act == "TITLE" && i+1 < len(actions) {
			ap.title = strings.Join(actions[i+1:], " ")
			break
		}
		if act == "REINDEX" {
			continue
		}
		acts = append(acts, act)
	}
	var firstUnknownKey string
	for _, act := range acts {
		switch act {
		case "ATOM":
			return ap.createBlockNodeAtom(rtConfig)
		case "RSS":
			return ap.createBlockNodeRSS(rtConfig)
		case "KEYS":
			return ap.createBlockNodeMetaKeys()
		}
		key := strings.ToLower(act)
		switch meta.Type(key) {
		case meta.TypeWord:
			return ap.createBlockNodeWord(key)
		case meta.TypeTagSet:
			return ap.createBlockNodeTagSet(key)
		}
		if firstUnknownKey == "" {
			firstUnknownKey = key
		}
	}


	return ap.createBlockNodeMeta(firstUnknownKey)


}

type actionPara struct {
	ctx   context.Context
	q     *query.Query
	ml    []*meta.Meta
	kind  ast.NestedListKind
	min   int
	max   int
	title string
}

func (ap *actionPara) createBlockNodeWord(key string) ast.BlockNode {
	var buf bytes.Buffer
	ccs, bufLen := ap.prepareCatAction(key, &buf)
	if len(ccs) == 0 {
		return nil
	}
	items := make([]ast.ItemSlice, 0, len(ccs))
	ccs.SortByName()
	for _, cat := range ccs {
		buf.WriteString(cat.Name)
		items = append(items, ast.ItemSlice{ast.CreateParaNode(&ast.LinkNode{
			Attrs:   nil,
			Ref:     ast.ParseReference(buf.String()),
			Inlines: ast.InlineSlice{&ast.TextNode{Text: cat.Name}},
		})})
		buf.Truncate(bufLen)
	}
	return &ast.NestedListNode{
		Kind:  ap.kind,
		Items: items,
		Attrs: nil,
	}
}

func (ap *actionPara) createBlockNodeTagSet(key string) ast.BlockNode {
	var buf bytes.Buffer
	ccs, bufLen := ap.prepareCatAction(key, &buf)
	if len(ccs) == 0 {
		return nil
	}
	ccs.SortByCount()
	ccs = ap.limitTags(ccs)
	countMap := ap.calcFontSizes(ccs)

	para := make(ast.InlineSlice, 0, len(ccs))
	ccs.SortByName()








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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2022-present Detlef Stern
//-----------------------------------------------------------------------------

package evaluator

import (
	"bytes"
	"context"
	"math"
	"sort"
	"strconv"
	"strings"

	"t73f.de/r/zsc/api"
	"t73f.de/r/zsc/attrs"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/config"
	"zettelstore.de/z/encoding/atom"
	"zettelstore.de/z/encoding/rss"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/query"
	"zettelstore.de/z/zettel/meta"
)

// QueryAction transforms a list of metadata according to query actions into a AST nested list.
func QueryAction(ctx context.Context, q *query.Query, ml []*meta.Meta, rtConfig config.Config) (ast.BlockNode, int) {
	ap := actionPara{
		ctx:   ctx,
		q:     q,
		ml:    ml,
		kind:  ast.NestedListUnordered,
		min:   -1,
		max:   -1,
		title: rtConfig.GetSiteName(),
	}
	actions := q.Actions()
	if len(actions) == 0 {
		return ap.createBlockNodeMeta("")
	}

	acts := make([]string, 0, len(actions))
	for i, act := range actions {
		if strings.HasPrefix(act, api.NumberedAction[0:1]) {
			ap.kind = ast.NestedListOrdered
			continue
		}
		if strings.HasPrefix(act, api.MinAction) {
			if num, err := strconv.Atoi(act[3:]); err == nil && num > 0 {
				ap.min = num
				continue
			}
		}
		if strings.HasPrefix(act, api.MaxAction) {
			if num, err := strconv.Atoi(act[3:]); err == nil && num > 0 {
				ap.max = num
				continue
			}
		}
		if act == api.TitleAction && i+1 < len(actions) {
			ap.title = strings.Join(actions[i+1:], " ")
			break
		}
		if act == api.ReIndexAction {
			continue
		}
		acts = append(acts, act)
	}
	var firstUnknowAct string
	for _, act := range acts {
		switch act {
		case api.AtomAction:
			return ap.createBlockNodeAtom(rtConfig)
		case api.RSSAction:
			return ap.createBlockNodeRSS(rtConfig)
		case api.KeysAction:
			return ap.createBlockNodeMetaKeys()
		}
		key := strings.ToLower(act)
		switch meta.Type(key) {
		case meta.TypeWord:
			return ap.createBlockNodeWord(key)
		case meta.TypeTagSet:
			return ap.createBlockNodeTagSet(key)
		}
		if firstUnknowAct == "" {
			firstUnknowAct = act
		}
	}
	bn, numItems := ap.createBlockNodeMeta(strings.ToLower(firstUnknowAct))
	if bn != nil && numItems == 0 && firstUnknowAct == strings.ToUpper(firstUnknowAct) {
		bn, numItems = ap.createBlockNodeMeta("")
	}
	return bn, numItems
}

type actionPara struct {
	ctx   context.Context
	q     *query.Query
	ml    []*meta.Meta
	kind  ast.NestedListKind
	min   int
	max   int
	title string
}

func (ap *actionPara) createBlockNodeWord(key string) (ast.BlockNode, int) {
	var buf bytes.Buffer
	ccs, bufLen := ap.prepareCatAction(key, &buf)
	if len(ccs) == 0 {
		return nil, 0
	}
	items := make([]ast.ItemSlice, 0, len(ccs))
	ccs.SortByName()
	for _, cat := range ccs {
		buf.WriteString(cat.Name)
		items = append(items, ast.ItemSlice{ast.CreateParaNode(&ast.LinkNode{
			Attrs:   nil,
			Ref:     ast.ParseReference(buf.String()),
			Inlines: ast.InlineSlice{&ast.TextNode{Text: cat.Name}},
		})})
		buf.Truncate(bufLen)
	}
	return &ast.NestedListNode{
		Kind:  ap.kind,
		Items: items,
		Attrs: nil,
	}, len(items)
}

func (ap *actionPara) createBlockNodeTagSet(key string) (ast.BlockNode, int) {
	var buf bytes.Buffer
	ccs, bufLen := ap.prepareCatAction(key, &buf)
	if len(ccs) == 0 {
		return nil, 0
	}
	ccs.SortByCount()
	ccs = ap.limitTags(ccs)
	countMap := ap.calcFontSizes(ccs)

	para := make(ast.InlineSlice, 0, len(ccs))
	ccs.SortByName()
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				Kind:    ast.FormatSuper,
				Attrs:   nil,
				Inlines: ast.InlineSlice{&ast.TextNode{Text: strconv.Itoa(cat.Count)}},
			},
		)
		buf.Truncate(bufLen)
	}
	return &ast.ParaNode{Inlines: para}
}

func (ap *actionPara) limitTags(ccs meta.CountedCategories) meta.CountedCategories {
	if min, max := ap.min, ap.max; min > 0 || max > 0 {
		if min < 0 {
			min = ccs[len(ccs)-1].Count
		}







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				Kind:    ast.FormatSuper,
				Attrs:   nil,
				Inlines: ast.InlineSlice{&ast.TextNode{Text: strconv.Itoa(cat.Count)}},
			},
		)
		buf.Truncate(bufLen)
	}
	return &ast.ParaNode{Inlines: para}, len(ccs)
}

func (ap *actionPara) limitTags(ccs meta.CountedCategories) meta.CountedCategories {
	if min, max := ap.min, ap.max; min > 0 || max > 0 {
		if min < 0 {
			min = ccs[len(ccs)-1].Count
		}
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			}
			return temp
		}
	}
	return ccs
}

func (ap *actionPara) createBlockNodeMetaKeys() ast.BlockNode {
	arr := make(meta.Arrangement, 128)
	for _, m := range ap.ml {
		for k := range m.Map() {
			arr[k] = append(arr[k], m)
		}
	}
	if len(arr) == 0 {
		return nil
	}
	ccs := arr.Counted()
	ccs.SortByName()

	var buf bytes.Buffer
	bufLen := ap.prepareSimpleQuery(&buf)
	items := make([]ast.ItemSlice, 0, len(ccs))







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			}
			return temp
		}
	}
	return ccs
}

func (ap *actionPara) createBlockNodeMetaKeys() (ast.BlockNode, int) {
	arr := make(meta.Arrangement, 128)
	for _, m := range ap.ml {
		for k := range m.Map() {
			arr[k] = append(arr[k], m)
		}
	}
	if len(arr) == 0 {
		return nil, 0
	}
	ccs := arr.Counted()
	ccs.SortByName()

	var buf bytes.Buffer
	bufLen := ap.prepareSimpleQuery(&buf)
	items := make([]ast.ItemSlice, 0, len(ccs))
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			&ast.TextNode{Text: ")"},
		)})
	}
	return &ast.NestedListNode{
		Kind:  ap.kind,
		Items: items,
		Attrs: nil,
	}
}

func (ap *actionPara) createBlockNodeMeta(key string) ast.BlockNode {
	if len(ap.ml) == 0 {
		return nil
	}
	items := make([]ast.ItemSlice, 0, len(ap.ml))
	for _, m := range ap.ml {
		if key != "" {
			if _, found := m.Get(key); !found {
				continue
			}
		}
		items = append(items, ast.ItemSlice{ast.CreateParaNode(&ast.LinkNode{
			Attrs:   nil,
			Ref:     ast.ParseReference(m.Zid.String()),
			Inlines: parser.ParseSpacedText(m.GetTitle()),
		})})
	}
	return &ast.NestedListNode{
		Kind:  ap.kind,
		Items: items,
		Attrs: nil,
	}
}

func (ap *actionPara) prepareCatAction(key string, buf *bytes.Buffer) (meta.CountedCategories, int) {
	if len(ap.ml) == 0 {
		return nil, 0
	}
	ccs := meta.CreateArrangement(ap.ml, key).Counted()







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			&ast.TextNode{Text: ")"},
		)})
	}
	return &ast.NestedListNode{
		Kind:  ap.kind,
		Items: items,
		Attrs: nil,
	}, len(items)
}

func (ap *actionPara) createBlockNodeMeta(key string) (ast.BlockNode, int) {
	if len(ap.ml) == 0 {
		return nil, 0
	}
	items := make([]ast.ItemSlice, 0, len(ap.ml))
	for _, m := range ap.ml {
		if key != "" {
			if _, found := m.Get(key); !found {
				continue
			}
		}
		items = append(items, ast.ItemSlice{ast.CreateParaNode(&ast.LinkNode{
			Attrs:   nil,
			Ref:     ast.ParseReference(m.Zid.String()),
			Inlines: parser.ParseSpacedText(m.GetTitle()),
		})})
	}
	return &ast.NestedListNode{
		Kind:  ap.kind,
		Items: items,
		Attrs: nil,
	}, len(items)
}

func (ap *actionPara) prepareCatAction(key string, buf *bytes.Buffer) (meta.CountedCategories, int) {
	if len(ap.ml) == 0 {
		return nil, 0
	}
	ccs := meta.CreateArrangement(ap.ml, key).Counted()
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const fontSizes = 6 // Must be the number of CSS classes zs-font-size-* in base.css
const fontSizes64 = float64(fontSizes)

func (*actionPara) calcFontSizes(ccs meta.CountedCategories) map[int]attrs.Attributes {
	var fsAttrs [fontSizes]attrs.Attributes
	var a attrs.Attributes
	for i := 0; i < fontSizes; i++ {
		fsAttrs[i] = a.AddClass("zs-font-size-" + strconv.Itoa(i))
	}

	countMap := make(map[int]int, len(ccs))
	for _, cat := range ccs {
		countMap[cat.Count]++
	}







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const fontSizes = 6 // Must be the number of CSS classes zs-font-size-* in base.css
const fontSizes64 = float64(fontSizes)

func (*actionPara) calcFontSizes(ccs meta.CountedCategories) map[int]attrs.Attributes {
	var fsAttrs [fontSizes]attrs.Attributes
	var a attrs.Attributes
	for i := range fontSizes {
		fsAttrs[i] = a.AddClass("zs-font-size-" + strconv.Itoa(i))
	}

	countMap := make(map[int]int, len(ccs))
	for _, cat := range ccs {
		countMap[cat.Count]++
	}
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		}
	}
	return result
}

func calcBudget(total, curSize float64) float64 { return math.Round(total / (fontSizes64 - curSize)) }

func (ap *actionPara) createBlockNodeRSS(cfg config.Config) ast.BlockNode {
	var rssConfig rss.Configuration
	rssConfig.Setup(ap.ctx, cfg)
	rssConfig.Title = ap.title
	data := rssConfig.Marshal(ap.q, ap.ml)

	return &ast.VerbatimNode{
		Kind:    ast.VerbatimProg,
		Attrs:   attrs.Attributes{"lang": "xml"},
		Content: data,
	}
}

func (ap *actionPara) createBlockNodeAtom(cfg config.Config) ast.BlockNode {
	var atomConfig atom.Configuration
	atomConfig.Setup(cfg)
	atomConfig.Title = ap.title
	data := atomConfig.Marshal(ap.q, ap.ml)

	return &ast.VerbatimNode{
		Kind:    ast.VerbatimProg,
		Attrs:   attrs.Attributes{"lang": "xml"},
		Content: data,
	}
}







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		}
	}
	return result
}

func calcBudget(total, curSize float64) float64 { return math.Round(total / (fontSizes64 - curSize)) }

func (ap *actionPara) createBlockNodeRSS(cfg config.Config) (ast.BlockNode, int) {
	var rssConfig rss.Configuration
	rssConfig.Setup(ap.ctx, cfg)
	rssConfig.Title = ap.title
	data := rssConfig.Marshal(ap.q, ap.ml)

	return &ast.VerbatimNode{
		Kind:    ast.VerbatimProg,
		Attrs:   attrs.Attributes{"lang": "xml"},
		Content: data,
	}, len(ap.ml)
}

func (ap *actionPara) createBlockNodeAtom(cfg config.Config) (ast.BlockNode, int) {
	var atomConfig atom.Configuration
	atomConfig.Setup(cfg)
	atomConfig.Title = ap.title
	data := atomConfig.Marshal(ap.q, ap.ml)

	return &ast.VerbatimNode{
		Kind:    ast.VerbatimProg,
		Attrs:   attrs.Attributes{"lang": "xml"},
		Content: data,
	}, len(ap.ml)
}

Changes to evaluator/metadata.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package evaluator

import (
	"zettelstore.de/z/ast"
	"zettelstore.de/z/zettel/meta"








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package evaluator

import (
	"zettelstore.de/z/ast"
	"zettelstore.de/z/zettel/meta"

Changes to go.mod.

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module zettelstore.de/z

go 1.21

require (
	github.com/fsnotify/fsnotify v1.7.0
	github.com/yuin/goldmark v1.5.6
	golang.org/x/crypto v0.14.0
	golang.org/x/term v0.13.0
	golang.org/x/text v0.13.0
	zettelstore.de/client.fossil v0.0.0-20231026155719-8c6fa07a0d0f

	zettelstore.de/sx.fossil v0.0.0-20231026154942-e6a183740a4f
)


require golang.org/x/sys v0.13.0 // indirect




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module zettelstore.de/z

go 1.22

require (
	github.com/fsnotify/fsnotify v1.7.0
	github.com/yuin/goldmark v1.7.1
	golang.org/x/crypto v0.23.0
	golang.org/x/term v0.20.0
	golang.org/x/text v0.15.0
	t73f.de/r/sx v0.0.0-20240418072254-b6eff7d787f9
	t73f.de/r/sxwebs v0.0.0-20240506145202-e8d9730ec7be
	t73f.de/r/zsc v0.0.0-20240422145115-3bbfcfd9394c
)

require (
	golang.org/x/sys v0.20.0 // indirect
	t73f.de/r/webs v0.0.0-20240506131458-2ca382cb6824 // indirect
)

Changes to go.sum.

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github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nosvA=
github.com/fsnotify/fsnotify v1.7.0/go.mod h1:40Bi/Hjc2AVfZrqy+aj+yEI+/bRxZnMJyTJwOpGvigM=
github.com/yuin/goldmark v1.5.6 h1:COmQAWTCcGetChm3Ig7G/t8AFAN00t+o8Mt4cf7JpwA=
github.com/yuin/goldmark v1.5.6/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
golang.org/x/crypto v0.14.0 h1:wBqGXzWJW6m1XrIKlAH0Hs1JJ7+9KBwnIO8v66Q9cHc=
golang.org/x/crypto v0.14.0/go.mod h1:MVFd36DqK4CsrnJYDkBA3VC4m2GkXAM0PvzMCn4JQf4=
golang.org/x/sys v0.13.0 h1:Af8nKPmuFypiUBjVoU9V20FiaFXOcuZI21p0ycVYYGE=
golang.org/x/sys v0.13.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/term v0.13.0 h1:bb+I9cTfFazGW51MZqBVmZy7+JEJMouUHTUSKVQLBek=
golang.org/x/term v0.13.0/go.mod h1:LTmsnFJwVN6bCy1rVCoS+qHT1HhALEFxKncY3WNNh4U=
golang.org/x/text v0.13.0 h1:ablQoSUd0tRdKxZewP80B+BaqeKJuVhuRxj/dkrun3k=
golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
zettelstore.de/client.fossil v0.0.0-20231026155719-8c6fa07a0d0f h1:eW8wEMcqR+LvIwWxE1rl+6LZbXRM9wgBGQ9pPw/k1j8=
zettelstore.de/client.fossil v0.0.0-20231026155719-8c6fa07a0d0f/go.mod h1:uYFsUH4hQ/TLEjDFxzOLJkT/sltvcQ5aIM29XNkjR+c=
zettelstore.de/sx.fossil v0.0.0-20231026154942-e6a183740a4f h1:NFblKWyhNnXDDcF7C6zx7cDyIJ/7GGAusIwR6uZrfkM=
zettelstore.de/sx.fossil v0.0.0-20231026154942-e6a183740a4f/go.mod h1:Uw3OLM1ufOM4Xe0G51mvkTDUv2okd+HyDBMx+0ZG7ME=






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github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nosvA=
github.com/fsnotify/fsnotify v1.7.0/go.mod h1:40Bi/Hjc2AVfZrqy+aj+yEI+/bRxZnMJyTJwOpGvigM=
github.com/yuin/goldmark v1.7.1 h1:3bajkSilaCbjdKVsKdZjZCLBNPL9pYzrCakKaf4U49U=
github.com/yuin/goldmark v1.7.1/go.mod h1:uzxRWxtg69N339t3louHJ7+O03ezfj6PlliRlaOzY1E=
golang.org/x/crypto v0.23.0 h1:dIJU/v2J8Mdglj/8rJ6UUOM3Zc9zLZxVZwwxMooUSAI=
golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y=
golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
golang.org/x/term v0.20.0 h1:VnkxpohqXaOBYJtBmEppKUG6mXpi+4O6purfc2+sMhw=
golang.org/x/term v0.20.0/go.mod h1:8UkIAJTvZgivsXaD6/pH6U9ecQzZ45awqEOzuCvwpFY=
golang.org/x/text v0.15.0 h1:h1V/4gjBv8v9cjcR6+AR5+/cIYK5N/WAgiv4xlsEtAk=
golang.org/x/text v0.15.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
t73f.de/r/sx v0.0.0-20240418072254-b6eff7d787f9 h1:lVPkYN8+J9f6JA9SmoF6icvpLxz4u3h1MCTuDYJYwdU=
t73f.de/r/sx v0.0.0-20240418072254-b6eff7d787f9/go.mod h1:G9pD1j2R6y9ZkPBb81mSnmwaAvTOg7r6jKp/OF7WeFA=
t73f.de/r/sxwebs v0.0.0-20240506145202-e8d9730ec7be h1:DlX70vUz/hCMQxr1xVU339h2eUIEqdG2duS0QBqkXFw=
t73f.de/r/sxwebs v0.0.0-20240506145202-e8d9730ec7be/go.mod h1:PtIkpRfTTiQITciKaWcTiAwy9FJ63WSQKciTp/dJbOA=
t73f.de/r/webs v0.0.0-20240506131458-2ca382cb6824 h1:G/5vTUMZp/z6Gm88SUSIthXUIQi90oqI9ZlOBC4W074=
t73f.de/r/webs v0.0.0-20240506131458-2ca382cb6824/go.mod h1:UGAAtul0TK5ACeZ6zTS3SX6GqwMFXxlUpHiV8oqNq5w=
t73f.de/r/zsc v0.0.0-20240422145115-3bbfcfd9394c h1:TOvMeqVXG5s1Rj2a2q3r1+K8LlS9fHruMon0n7Aw5qM=
t73f.de/r/zsc v0.0.0-20240422145115-3bbfcfd9394c/go.mod h1:YdsjqbI1th0bJoMclgbNycJUVr8ovAV02ZgA91uOhkU=

Deleted input/entity.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//-----------------------------------------------------------------------------

package input

import (
	"html"
	"unicode"
)

// ScanEntity scans either a named or a numbered entity and returns it as a string.
//
// For numbered entities (like &#123; or &#x123;) html.UnescapeString returns
// sometimes other values as expected, if the number is not well-formed. This
// may happen because of some strange HTML parsing rules. But these do not
// apply to Zettelmarkup. Therefore, I parse the number here in the code.
func (inp *Input) ScanEntity() (res string, success bool) {
	if inp.Ch != '&' {
		return "", false
	}
	pos := inp.Pos
	inp.Next()
	if inp.Ch == '#' {
		inp.Next()
		if inp.Ch == 'x' || inp.Ch == 'X' {
			return inp.scanEntityBase16()
		}
		return inp.scanEntityBase10()
	}
	return inp.scanEntityNamed(pos)
}

func (inp *Input) scanEntityBase16() (string, bool) {
	inp.Next()
	if inp.Ch == ';' {
		return "", false
	}
	code := 0
	for {
		switch ch := inp.Ch; ch {
		case ';':
			inp.Next()
			if r := rune(code); isValidEntity(r) {
				return string(r), true
			}
			return "", false
		case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
			code = 16*code + int(ch-'0')
		case 'a', 'b', 'c', 'd', 'e', 'f':
			code = 16*code + int(ch-'a'+10)
		case 'A', 'B', 'C', 'D', 'E', 'F':
			code = 16*code + int(ch-'A'+10)
		default:
			return "", false
		}
		if code > unicode.MaxRune {
			return "", false
		}
		inp.Next()
	}
}

func (inp *Input) scanEntityBase10() (string, bool) {
	// Base 10 code
	if inp.Ch == ';' {
		return "", false
	}
	code := 0
	for {
		switch ch := inp.Ch; ch {
		case ';':
			inp.Next()
			if r := rune(code); isValidEntity(r) {
				return string(r), true
			}
			return "", false
		case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
			code = 10*code + int(ch-'0')
		default:
			return "", false
		}
		if code > unicode.MaxRune {
			return "", false
		}
		inp.Next()
	}
}
func (inp *Input) scanEntityNamed(pos int) (string, bool) {
	for {
		switch inp.Ch {
		case EOS, '\n', '\r', '&':
			return "", false
		case ';':
			inp.Next()
			es := string(inp.Src[pos:inp.Pos])
			ues := html.UnescapeString(es)
			if es == ues {
				return "", false
			}
			return ues, true
		default:
			inp.Next()
		}
	}
}

// isValidEntity checks if the given code is valid for an entity.
//
// According to https://html.spec.whatwg.org/multipage/syntax.html#character-references
// ""The numeric character reference forms described above are allowed to reference any code point
// excluding U+000D CR, noncharacters, and controls other than ASCII whitespace.""
func isValidEntity(r rune) bool {
	// No C0 control and no "code point in the range U+007F DELETE to U+009F APPLICATION PROGRAM COMMAND, inclusive."
	if r < ' ' || ('\u007f' <= r && r <= '\u009f') {
		return false
	}

	// If below any noncharacter code point, return true
	//
	// See: https://infra.spec.whatwg.org/#noncharacter
	if r < '\ufdd0' {
		return true
	}

	// First range of noncharacter code points: "(...) in the range U+FDD0 to U+FDEF, inclusive"
	if r <= '\ufdef' {
		return false
	}

	// Other noncharacter code points:
	switch r {
	case '\uFFFE', '\uFFFF',
		'\U0001FFFE', '\U0001FFFF',
		'\U0002FFFE', '\U0002FFFF',
		'\U0003FFFE', '\U0003FFFF',
		'\U0004FFFE', '\U0004FFFF',
		'\U0005FFFE', '\U0005FFFF',
		'\U0006FFFE', '\U0006FFFF',
		'\U0007FFFE', '\U0007FFFF',
		'\U0008FFFE', '\U0008FFFF',
		'\U0009FFFE', '\U0009FFFF',
		'\U000AFFFE', '\U000AFFFF',
		'\U000BFFFE', '\U000BFFFF',
		'\U000CFFFE', '\U000CFFFF',
		'\U000DFFFE', '\U000DFFFF',
		'\U000EFFFE', '\U000EFFFF',
		'\U000FFFFE', '\U000FFFFF',
		'\U0010FFFE', '\U0010FFFF':
		return false
	}
	return true
}
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Deleted input/entity_test.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//-----------------------------------------------------------------------------

package input_test

import (
	"testing"

	"zettelstore.de/z/input"
)

func TestScanEntity(t *testing.T) {
	t.Parallel()
	var testcases = []struct {
		text string
		exp  string
	}{
		{"", ""},
		{"a", ""},
		{"&amp;", "&"},
		{"&#33;", "!"},
		{"&#x33;", "3"},
		{"&quot;", "\""},
	}
	for id, tc := range testcases {
		inp := input.NewInput([]byte(tc.text))
		got, ok := inp.ScanEntity()
		if !ok {
			if tc.exp != "" {
				t.Errorf("ID=%d, text=%q: expected error, but got %q", id, tc.text, got)
			}
			if inp.Pos != 0 {
				t.Errorf("ID=%d, text=%q: input position advances to %d", id, tc.text, inp.Pos)
			}
			continue
		}
		if tc.exp != got {
			t.Errorf("ID=%d, text=%q: expected %q, but got %q", id, tc.text, tc.exp, got)
		}
	}
}

func TestScanIllegalEntity(t *testing.T) {
	t.Parallel()
	testcases := []string{"", "a", "& Input &rarr;", "&#9;", "&#x1f;"}
	for i, tc := range testcases {
		inp := input.NewInput([]byte(tc))
		got, ok := inp.ScanEntity()
		if ok {
			t.Errorf("%d: scanning %q was unexpected successful, got %q", i, tc, got)
			continue
		}
	}
}
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Deleted input/input.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//-----------------------------------------------------------------------------

// Package input provides an abstraction for data to be read.
package input

import "unicode/utf8"

// Input is an abstract input source
type Input struct {
	// Read-only, will never change
	Src []byte // The source string

	// Read-only, will change
	Ch      rune // current character
	Pos     int  // character position in src
	readPos int  // reading position (position after current character)
}

// NewInput creates a new input source.
func NewInput(src []byte) *Input {
	inp := &Input{Src: src}
	inp.Next()
	return inp
}

// EOS = End of source
const EOS = rune(-1)

// Next reads the next rune into inp.Ch and returns it too.
func (inp *Input) Next() rune {
	if inp.readPos >= len(inp.Src) {
		inp.Pos = len(inp.Src)
		inp.Ch = EOS
		return EOS
	}
	inp.Pos = inp.readPos
	r, w := rune(inp.Src[inp.readPos]), 1
	if r >= utf8.RuneSelf {
		r, w = utf8.DecodeRune(inp.Src[inp.readPos:])
	}
	inp.readPos += w
	inp.Ch = r
	return r
}

// Peek returns the rune following the most recently read rune without
// advancing. If end-of-source was already found peek returns EOS.
func (inp *Input) Peek() rune {
	return inp.PeekN(0)
}

// PeekN returns the n-th rune after the most recently read rune without
// advancing. If end-of-source was already found peek returns EOS.
func (inp *Input) PeekN(n int) rune {
	pos := inp.readPos + n
	if pos < len(inp.Src) {
		r := rune(inp.Src[pos])
		if r >= utf8.RuneSelf {
			r, _ = utf8.DecodeRune(inp.Src[pos:])
		}
		if r == '\t' {
			return ' '
		}
		return r
	}
	return EOS
}

// Accept checks if the given string is a prefix of the text to be parsed.
// If successful, advance position and current character.
// String must only contain bytes < 128.
// If not successful, everything remains as it is.
func (inp *Input) Accept(s string) bool {
	pos := inp.Pos
	remaining := len(inp.Src) - pos
	if s == "" || len(s) > remaining {
		return false
	}
	// According to internal documentation of bytes.Equal, the string() will not allocate any memory.
	if readPos := pos + len(s); s == string(inp.Src[pos:readPos]) {
		inp.readPos = readPos
		inp.Next()
		return true
	}
	return false
}

// IsEOLEOS returns true if char is either EOS or EOL.
func IsEOLEOS(ch rune) bool {
	switch ch {
	case EOS, '\n', '\r':
		return true
	}
	return false
}

// EatEOL transforms both "\r" and "\r\n" into "\n".
func (inp *Input) EatEOL() {
	switch inp.Ch {
	case '\r':
		if inp.Peek() == '\n' {
			inp.Next()
		}
		inp.Ch = '\n'
		inp.Next()
	case '\n':
		inp.Next()
	}
}

// SetPos allows to reset the read position.
func (inp *Input) SetPos(pos int) {
	if inp.Pos != pos {
		inp.readPos = pos
		inp.Next()
	}
}

// SkipToEOL reads until the next end-of-line.
func (inp *Input) SkipToEOL() {
	for {
		switch inp.Ch {
		case EOS, '\n', '\r':
			return
		}
		inp.Next()
	}
}

// ScanLineContent reads the reaining input stream and interprets it as lines of text.
func (inp *Input) ScanLineContent() []byte {
	result := make([]byte, 0, len(inp.Src)-inp.Pos+1)
	for {
		inp.EatEOL()
		posL := inp.Pos
		if inp.Ch == EOS {
			return result
		}
		inp.SkipToEOL()
		if len(result) > 0 {
			result = append(result, '\n')
		}
		result = append(result, inp.Src[posL:inp.Pos]...)
	}
}
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Deleted input/input_test.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//-----------------------------------------------------------------------------

// Package input_test provides some unit-tests for reading data.
package input_test

import (
	"testing"

	"zettelstore.de/z/input"
)

func TestEatEOL(t *testing.T) {
	t.Parallel()
	inp := input.NewInput(nil)
	inp.EatEOL()
	if inp.Ch != input.EOS {
		t.Errorf("No EOS found: %q", inp.Ch)
	}
	if inp.Pos != 0 {
		t.Errorf("Pos != 0: %d", inp.Pos)
	}

	inp = input.NewInput([]byte("ABC"))
	if inp.Ch != 'A' {
		t.Errorf("First ch != 'A', got %q", inp.Ch)
	}
	inp.EatEOL()
	if inp.Ch != 'A' {
		t.Errorf("First ch != 'A', got %q", inp.Ch)
	}
}

func TestAccept(t *testing.T) {
	t.Parallel()
	testcases := []struct {
		accept string
		src    string
		acc    bool
		exp    rune
	}{
		{"", "", false, input.EOS},
		{"AB", "abc", false, 'a'},
		{"AB", "ABC", true, 'C'},
		{"AB", "AB", true, input.EOS},
		{"AB", "A", false, 'A'},
	}
	for i, tc := range testcases {
		inp := input.NewInput([]byte(tc.src))
		acc := inp.Accept(tc.accept)
		if acc != tc.acc {
			t.Errorf("%d: %q.Accept(%q) == %v, but got %v", i, tc.src, tc.accept, tc.acc, acc)
		}
		if got := inp.Ch; tc.exp != got {
			t.Errorf("%d: %q.Accept(%q) should result in run %v, but got %v", i, tc.src, tc.accept, tc.exp, got)
		}
	}
}
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Deleted input/runes.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//-----------------------------------------------------------------------------

package input

import "unicode"

// IsSpace returns true if rune is a whitespace.
func IsSpace(ch rune) bool {
	switch ch {
	case ' ', '\t':
		return true
	case '\n', '\r', EOS:
		return false
	}
	return unicode.IsSpace(ch)
}
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Changes to kernel/impl/auth.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package impl

import (
	"errors"
	"sync"








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package impl

import (
	"errors"
	"sync"
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func (as *authService) Start(*myKernel) error {
	as.mxService.Lock()
	defer as.mxService.Unlock()
	readonlyMode := as.GetNextConfig(kernel.AuthReadonly).(bool)
	owner := as.GetNextConfig(kernel.AuthOwner).(id.Zid)
	authMgr, err := as.createManager(readonlyMode, owner)
	if err != nil {
		as.logger.Fatal().Err(err).Msg("Unable to create manager")
		return err
	}
	as.logger.Info().Msg("Start Manager")
	as.manager = authMgr
	return nil
}








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func (as *authService) Start(*myKernel) error {
	as.mxService.Lock()
	defer as.mxService.Unlock()
	readonlyMode := as.GetNextConfig(kernel.AuthReadonly).(bool)
	owner := as.GetNextConfig(kernel.AuthOwner).(id.Zid)
	authMgr, err := as.createManager(readonlyMode, owner)
	if err != nil {
		as.logger.Error().Err(err).Msg("Unable to create manager")
		return err
	}
	as.logger.Info().Msg("Start Manager")
	as.manager = authMgr
	return nil
}

Changes to kernel/impl/box.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package impl

import (
	"context"
	"errors"








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package impl

import (
	"context"
	"errors"
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		}
		boxURIs = append(boxURIs, u.(*url.URL))
	}
	ps.mxService.Lock()
	defer ps.mxService.Unlock()
	mgr, err := ps.createManager(boxURIs, kern.auth.manager, &kern.cfg)
	if err != nil {
		ps.logger.Fatal().Err(err).Msg("Unable to create manager")
		return err
	}
	ps.logger.Info().Str("location", mgr.Location()).Msg("Start Manager")
	if err = mgr.Start(context.Background()); err != nil {
		ps.logger.Fatal().Err(err).Msg("Unable to start manager")
		return err
	}
	kern.cfg.setBox(mgr)
	ps.manager = mgr
	return nil
}








|




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		}
		boxURIs = append(boxURIs, u.(*url.URL))
	}
	ps.mxService.Lock()
	defer ps.mxService.Unlock()
	mgr, err := ps.createManager(boxURIs, kern.auth.manager, &kern.cfg)
	if err != nil {
		ps.logger.Error().Err(err).Msg("Unable to create manager")
		return err
	}
	ps.logger.Info().Str("location", mgr.Location()).Msg("Start Manager")
	if err = mgr.Start(context.Background()); err != nil {
		ps.logger.Error().Err(err).Msg("Unable to start manager")
		return err
	}
	kern.cfg.setBox(mgr)
	ps.manager = mgr
	return nil
}

Changes to kernel/impl/cfg.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package impl

import (
	"context"
	"errors"
	"fmt"
	"strconv"
	"strings"
	"sync"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/box"
	"zettelstore.de/z/config"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/logger"
	"zettelstore.de/z/web/server"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package impl

import (
	"context"
	"errors"
	"fmt"
	"strconv"
	"strings"
	"sync"

	"t73f.de/r/zsc/api"
	"zettelstore.de/z/box"
	"zettelstore.de/z/config"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/logger"
	"zettelstore.de/z/web/server"
	"zettelstore.de/z/zettel/id"
	"zettelstore.de/z/zettel/meta"
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		keySiteName:         {"Site name", parseString, true},
		keyYAMLHeader:       {"YAML header", parseBool, true},
		keyZettelFileSyntax: {
			"Zettel file syntax",
			func(val string) (any, error) { return strings.Fields(val), nil },
			true,
		},
		kernel.ConfigSimpleMode: {"Simple mode", cs.noFrozen(parseBool), true},




	}
	cs.next = interfaceMap{
		keyDefaultCopyright:       "",
		keyDefaultLicense:         "",
		keyDefaultVisibility:      meta.VisibilityLogin,
		keyExpertMode:             false,
		config.KeyFooterZettel:    id.Invalid,
		config.KeyHomeZettel:      id.DefaultHomeZid,
		kernel.ConfigInsecureHTML: config.NoHTML,
		api.KeyLang:               api.ValueLangEN,
		keyMaxTransclusions:       int64(1024),
		keySiteName:               "Zettelstore",
		keyYAMLHeader:             false,
		keyZettelFileSyntax:       nil,
		kernel.ConfigSimpleMode:   false,




	}
}
func (cs *configService) GetLogger() *logger.Logger { return cs.logger }

func (cs *configService) Start(*myKernel) error {
	cs.logger.Info().Msg("Start Service")
	data := meta.New(id.ConfigurationZid)







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		keySiteName:         {"Site name", parseString, true},
		keyYAMLHeader:       {"YAML header", parseBool, true},
		keyZettelFileSyntax: {
			"Zettel file syntax",
			func(val string) (any, error) { return strings.Fields(val), nil },
			true,
		},
		kernel.ConfigSimpleMode:        {"Simple mode", cs.noFrozen(parseBool), true},
		config.KeyShowBackLinks:        {"Show back links", parseString, true},
		config.KeyShowFolgeLinks:       {"Show folge links", parseString, true},
		config.KeyShowSubordinateLinks: {"Show subordinate links", parseString, true},
		config.KeyShowSuccessorLinks:   {"Show successor links", parseString, true},
	}
	cs.next = interfaceMap{
		keyDefaultCopyright:            "",
		keyDefaultLicense:              "",
		keyDefaultVisibility:           meta.VisibilityLogin,
		keyExpertMode:                  false,
		config.KeyFooterZettel:         id.Invalid,
		config.KeyHomeZettel:           id.DefaultHomeZid,
		kernel.ConfigInsecureHTML:      config.NoHTML,
		api.KeyLang:                    api.ValueLangEN,
		keyMaxTransclusions:            int64(1024),
		keySiteName:                    "Zettelstore",
		keyYAMLHeader:                  false,
		keyZettelFileSyntax:            nil,
		kernel.ConfigSimpleMode:        false,
		config.KeyShowBackLinks:        "",
		config.KeyShowFolgeLinks:       "",
		config.KeyShowSubordinateLinks: "",
		config.KeyShowSuccessorLinks:   "",
	}
}
func (cs *configService) GetLogger() *logger.Logger { return cs.logger }

func (cs *configService) Start(*myKernel) error {
	cs.logger.Info().Msg("Start Service")
	data := meta.New(id.ConfigurationZid)

Changes to kernel/impl/cmd.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package impl

import (
	"fmt"
	"io"
	"os"
	"runtime/metrics"
	"sort"
	"strconv"
	"strings"

	"zettelstore.de/client.fossil/maps"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/logger"
	"zettelstore.de/z/strfun"
)

type cmdSession struct {
	w        io.Writer








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>













|







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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package impl

import (
	"fmt"
	"io"
	"os"
	"runtime/metrics"
	"sort"
	"strconv"
	"strings"

	"t73f.de/r/zsc/maps"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/logger"
	"zettelstore.de/z/strfun"
)

type cmdSession struct {
	w        io.Writer

Changes to kernel/impl/config.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package impl

import (
	"errors"
	"fmt"
	"sort"
	"strconv"
	"strings"
	"sync"

	"zettelstore.de/client.fossil/maps"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/logger"
	"zettelstore.de/z/zettel/id"
)

type parseFunc func(string) (any, error)
type configDescription struct {








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>












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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package impl

import (
	"errors"
	"fmt"
	"sort"
	"strconv"
	"strings"
	"sync"

	"t73f.de/r/zsc/maps"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/logger"
	"zettelstore.de/z/zettel/id"
)

type parseFunc func(string) (any, error)
type configDescription struct {

Changes to kernel/impl/core.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package impl

import (
	"fmt"
	"net"
	"os"
	"runtime"
	"sync"
	"time"

	"zettelstore.de/client.fossil/maps"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/logger"
	"zettelstore.de/z/strfun"
	"zettelstore.de/z/zettel/id"
)

type coreService struct {








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>












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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package impl

import (
	"fmt"
	"net"
	"os"
	"runtime"
	"sync"
	"time"

	"t73f.de/r/zsc/maps"
	"zettelstore.de/z/kernel"
	"zettelstore.de/z/logger"
	"zettelstore.de/z/strfun"
	"zettelstore.de/z/zettel/id"
)

type coreService struct {
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	cs.next = interfaceMap{
		kernel.CoreDebug:     false,
		kernel.CoreGoArch:    runtime.GOARCH,
		kernel.CoreGoOS:      runtime.GOOS,
		kernel.CoreGoVersion: runtime.Version(),
		kernel.CoreHostname:  "*unknown host*",
		kernel.CorePort:      0,
		kernel.CoreStarted:   time.Now().Local().Format(id.ZidLayout),
		kernel.CoreVerbose:   false,
	}
	if hn, err := os.Hostname(); err == nil {
		cs.next[kernel.CoreHostname] = hn
	}
}








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	cs.next = interfaceMap{
		kernel.CoreDebug:     false,
		kernel.CoreGoArch:    runtime.GOARCH,
		kernel.CoreGoOS:      runtime.GOOS,
		kernel.CoreGoVersion: runtime.Version(),
		kernel.CoreHostname:  "*unknown host*",
		kernel.CorePort:      0,
		kernel.CoreStarted:   time.Now().Local().Format(id.TimestampLayout),
		kernel.CoreVerbose:   false,
	}
	if hn, err := os.Hostname(); err == nil {
		cs.next[kernel.CoreHostname] = hn
	}
}

Changes to kernel/impl/impl.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package impl provides the kernel implementation.
package impl

import (
	"errors"








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

// Package impl provides the kernel implementation.
package impl

import (
	"errors"
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	srv    service
	srvnum kernel.Service
}
type serviceDependency map[kernel.Service][]kernel.Service

const (
	defaultNormalLogLevel = logger.InfoLevel
	defaultSimpleLogLevel = logger.WarnLevel
)

// create a new kernel.
func init() {
	kernel.Main = createKernel()
}








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	srv    service
	srvnum kernel.Service
}
type serviceDependency map[kernel.Service][]kernel.Service

const (
	defaultNormalLogLevel = logger.InfoLevel
	defaultSimpleLogLevel = logger.ErrorLevel
)

// create a new kernel.
func init() {
	kernel.Main = createKernel()
}

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		kernel.AuthService:   {&kern.auth, "auth", defaultNormalLogLevel},
		kernel.BoxService:    {&kern.box, "box", defaultNormalLogLevel},
		kernel.WebService:    {&kern.web, "web", defaultNormalLogLevel},
	}
	kern.srvNames = make(map[string]serviceData, len(kern.srvs))
	for key, srvD := range kern.srvs {
		if _, ok := kern.srvNames[srvD.name]; ok {
			kern.logger.Panic().Str("service", srvD.name).Msg("Service data already set")
		}
		kern.srvNames[srvD.name] = serviceData{srvD.srv, key}
		l := logger.New(lw, strings.ToUpper(srvD.name)).SetLevel(srvD.logLevel)
		kern.logger.Debug().Str("service", srvD.name).Msg("Initialize")
		srvD.srv.Initialize(l)
	}
	kern.depStart = serviceDependency{







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		kernel.AuthService:   {&kern.auth, "auth", defaultNormalLogLevel},
		kernel.BoxService:    {&kern.box, "box", defaultNormalLogLevel},
		kernel.WebService:    {&kern.web, "web", defaultNormalLogLevel},
	}
	kern.srvNames = make(map[string]serviceData, len(kern.srvs))
	for key, srvD := range kern.srvs {
		if _, ok := kern.srvNames[srvD.name]; ok {
			kern.logger.Error().Str("service", srvD.name).Msg("Service data already set, ignore")
		}
		kern.srvNames[srvD.name] = serviceData{srvD.srv, key}
		l := logger.New(lw, strings.ToUpper(srvD.name)).SetLevel(srvD.logLevel)
		kern.logger.Debug().Str("service", srvD.name).Msg("Initialize")
		srvD.srv.Initialize(l)
	}
	kern.depStart = serviceDependency{
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	}
	return kern
}

func (kern *myKernel) Setup(progname, version string, versionTime time.Time) {
	kern.SetConfig(kernel.CoreService, kernel.CoreProgname, progname)
	kern.SetConfig(kernel.CoreService, kernel.CoreVersion, version)
	kern.SetConfig(kernel.CoreService, kernel.CoreVTime, versionTime.Local().Format(id.ZidLayout))
}

func (kern *myKernel) Start(headline, lineServer bool, configFilename string) {
	for _, srvD := range kern.srvs {
		srvD.srv.Freeze()
	}
	if kern.cfg.GetCurConfig(kernel.ConfigSimpleMode).(bool) {







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	}
	return kern
}

func (kern *myKernel) Setup(progname, version string, versionTime time.Time) {
	kern.SetConfig(kernel.CoreService, kernel.CoreProgname, progname)
	kern.SetConfig(kernel.CoreService, kernel.CoreVersion, version)
	kern.SetConfig(kernel.CoreService, kernel.CoreVTime, versionTime.Local().Format(id.TimestampLayout))
}

func (kern *myKernel) Start(headline, lineServer bool, configFilename string) {
	for _, srvD := range kern.srvs {
		srvD.srv.Freeze()
	}
	if kern.cfg.GetCurConfig(kernel.ConfigSimpleMode).(bool) {
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		logger.Mandatory().Msg("Licensed under the latest version of the EUPL (European Union Public License)")
		if configFilename != "" {
			logger.Mandatory().Str("filename", configFilename).Msg("Configuration file found")
		} else {
			logger.Mandatory().Msg("No configuration file found / used")
		}
		if kern.core.GetCurConfig(kernel.CoreDebug).(bool) {
			logger.Warn().Msg("----------------------------------------")
			logger.Warn().Msg("DEBUG MODE, DO NO USE THIS IN PRODUCTION")
			logger.Warn().Msg("----------------------------------------")
		}
		if kern.auth.GetCurConfig(kernel.AuthReadonly).(bool) {
			logger.Info().Msg("Read-only mode")
		}
	}
	if lineServer {
		port := kern.core.GetNextConfig(kernel.CorePort).(int)







|
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		logger.Mandatory().Msg("Licensed under the latest version of the EUPL (European Union Public License)")
		if configFilename != "" {
			logger.Mandatory().Str("filename", configFilename).Msg("Configuration file found")
		} else {
			logger.Mandatory().Msg("No configuration file found / used")
		}
		if kern.core.GetCurConfig(kernel.CoreDebug).(bool) {
			logger.Info().Msg("----------------------------------------")
			logger.Info().Msg("DEBUG MODE, DO NO USE THIS IN PRODUCTION")
			logger.Info().Msg("----------------------------------------")
		}
		if kern.auth.GetCurConfig(kernel.AuthReadonly).(bool) {
			logger.Info().Msg("Read-only mode")
		}
	}
	if lineServer {
		port := kern.core.GetNextConfig(kernel.CorePort).(int)
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// LogRecover outputs some information about the previous panic.
func (kern *myKernel) LogRecover(name string, recoverInfo interface{}) bool {
	return kern.doLogRecover(name, recoverInfo)
}
func (kern *myKernel) doLogRecover(name string, recoverInfo interface{}) bool {
	stack := debug.Stack()
	kern.logger.Fatal().Str("recovered_from", fmt.Sprint(recoverInfo)).Bytes("stack", stack).Msg(name)
	kern.core.updateRecoverInfo(name, recoverInfo, stack)
	return true
}

// --- Profiling ---------------------------------------------------------

var errProfileInWork = errors.New("already profiling")







|







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// LogRecover outputs some information about the previous panic.
func (kern *myKernel) LogRecover(name string, recoverInfo interface{}) bool {
	return kern.doLogRecover(name, recoverInfo)
}
func (kern *myKernel) doLogRecover(name string, recoverInfo interface{}) bool {
	stack := debug.Stack()
	kern.logger.Error().Str("recovered_from", fmt.Sprint(recoverInfo)).Bytes("stack", stack).Msg(name)
	kern.core.updateRecoverInfo(name, recoverInfo, stack)
	return true
}

// --- Profiling ---------------------------------------------------------

var errProfileInWork = errors.New("already profiling")

Changes to kernel/impl/log.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package impl

import (
	"os"
	"sync"








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package impl

import (
	"os"
	"sync"
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	}
	buf = append(buf, msg...)
	buf = append(buf, details...)
	buf = append(buf, '\n')
	_, err := os.Stdout.Write(buf)

	klw.mx.Unlock()
	if level == logger.PanicLevel {
		panic(err)
	}
	return err
}

func addTimestamp(buf *[]byte, ts time.Time) {
	year, month, day := ts.Date()
	itoa(buf, year, 4)
	*buf = append(*buf, '-')







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	}
	buf = append(buf, msg...)
	buf = append(buf, details...)
	buf = append(buf, '\n')
	_, err := os.Stdout.Write(buf)

	klw.mx.Unlock()



	return err
}

func addTimestamp(buf *[]byte, ts time.Time) {
	year, month, day := ts.Date()
	itoa(buf, year, 4)
	*buf = append(*buf, '-')
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	defer klw.mx.RUnlock()

	if !klw.full {
		if klw.writePos == 0 {
			return nil
		}
		result := make([]kernel.LogEntry, klw.writePos)
		for i := 0; i < klw.writePos; i++ {
			copyE2E(&result[i], &klw.data[i])
		}
		return result
	}
	result := make([]kernel.LogEntry, cap(klw.data))
	pos := 0
	for j := klw.writePos; j < cap(klw.data); j++ {
		copyE2E(&result[pos], &klw.data[j])
		pos++
	}
	for j := 0; j < klw.writePos; j++ {
		copyE2E(&result[pos], &klw.data[j])
		pos++
	}
	return result
}

func (klw *kernelLogWriter) getLastLogTime() time.Time {







|










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	defer klw.mx.RUnlock()

	if !klw.full {
		if klw.writePos == 0 {
			return nil
		}
		result := make([]kernel.LogEntry, klw.writePos)
		for i := range klw.writePos {
			copyE2E(&result[i], &klw.data[i])
		}
		return result
	}
	result := make([]kernel.LogEntry, cap(klw.data))
	pos := 0
	for j := klw.writePos; j < cap(klw.data); j++ {
		copyE2E(&result[pos], &klw.data[j])
		pos++
	}
	for j := range klw.writePos {
		copyE2E(&result[pos], &klw.data[j])
		pos++
	}
	return result
}

func (klw *kernelLogWriter) getLastLogTime() time.Time {

Changes to kernel/impl/server.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package impl

import (
	"bufio"
	"net"
)

func startLineServer(kern *myKernel, listenAddr string) error {
	ln, err := net.Listen("tcp", listenAddr)
	if err != nil {
		kern.logger.Fatal().Err(err).Msg("Unable to start administration console")
		return err
	}
	kern.logger.Mandatory().Str("listen", listenAddr).Msg("Start administration console")
	go func() { lineServer(ln, kern) }()
	return nil
}

func lineServer(ln net.Listener, kern *myKernel) {
	// Something may panic. Ensure a running line service.
	defer func() {
		if ri := recover(); ri != nil {
			kern.doLogRecover("Line", ri)
			go lineServer(ln, kern)
		}
	}()

	for {
		conn, err := ln.Accept()
		if err != nil {
			// handle error
			kern.logger.IfErr(err).Msg("Unable to accept connection")
			break
		}
		go handleLineConnection(conn, kern)
	}
	ln.Close()
}









>
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>












|




















|







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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package impl

import (
	"bufio"
	"net"
)

func startLineServer(kern *myKernel, listenAddr string) error {
	ln, err := net.Listen("tcp", listenAddr)
	if err != nil {
		kern.logger.Error().Err(err).Msg("Unable to start administration console")
		return err
	}
	kern.logger.Mandatory().Str("listen", listenAddr).Msg("Start administration console")
	go func() { lineServer(ln, kern) }()
	return nil
}

func lineServer(ln net.Listener, kern *myKernel) {
	// Something may panic. Ensure a running line service.
	defer func() {
		if ri := recover(); ri != nil {
			kern.doLogRecover("Line", ri)
			go lineServer(ln, kern)
		}
	}()

	for {
		conn, err := ln.Accept()
		if err != nil {
			// handle error
			kern.logger.Error().Err(err).Msg("Unable to accept connection")
			break
		}
		go handleLineConnection(conn, kern)
	}
	ln.Close()
}

Changes to kernel/impl/web.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package impl

import (
	"errors"
	"net"








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package impl

import (
	"errors"
	"net"
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	secureCookie := ws.GetNextConfig(kernel.WebSecureCookie).(bool)
	maxRequestSize := ws.GetNextConfig(kernel.WebMaxRequestSize).(int64)
	if maxRequestSize < 1024 {
		maxRequestSize = 1024
	}

	if !strings.HasSuffix(baseURL, urlPrefix) {
		ws.logger.Fatal().Str("base-url", baseURL).Str("url-prefix", urlPrefix).Msg(
			"url-prefix is not a suffix of base-url")
		return errWrongBasePrefix
	}

	if lap := netip.MustParseAddrPort(listenAddr); !kern.auth.manager.WithAuth() && !lap.Addr().IsLoopback() {
		ws.logger.Warn().Str("listen", listenAddr).Msg("service may be reached from outside, but authentication is not enabled")
	}

	srvw := impl.New(ws.logger, listenAddr, baseURL, urlPrefix, persistentCookie, secureCookie, maxRequestSize, kern.auth.manager)
	err := kern.web.setupServer(srvw, kern.box.manager, kern.auth.manager, &kern.cfg)
	if err != nil {
		ws.logger.Fatal().Err(err).Msg("Unable to create")
		return err
	}
	if kern.core.GetNextConfig(kernel.CoreDebug).(bool) {
		srvw.SetDebug()
	}
	if err = srvw.Run(); err != nil {
		ws.logger.Fatal().Err(err).Msg("Unable to start")
		return err
	}
	ws.logger.Info().Str("listen", listenAddr).Str("base-url", baseURL).Msg("Start Service")
	ws.mxService.Lock()
	ws.srvw = srvw
	ws.mxService.Unlock()








|





|





|






|







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	secureCookie := ws.GetNextConfig(kernel.WebSecureCookie).(bool)
	maxRequestSize := ws.GetNextConfig(kernel.WebMaxRequestSize).(int64)
	if maxRequestSize < 1024 {
		maxRequestSize = 1024
	}

	if !strings.HasSuffix(baseURL, urlPrefix) {
		ws.logger.Error().Str("base-url", baseURL).Str("url-prefix", urlPrefix).Msg(
			"url-prefix is not a suffix of base-url")
		return errWrongBasePrefix
	}

	if lap := netip.MustParseAddrPort(listenAddr); !kern.auth.manager.WithAuth() && !lap.Addr().IsLoopback() {
		ws.logger.Info().Str("listen", listenAddr).Msg("service may be reached from outside, but authentication is not enabled")
	}

	srvw := impl.New(ws.logger, listenAddr, baseURL, urlPrefix, persistentCookie, secureCookie, maxRequestSize, kern.auth.manager)
	err := kern.web.setupServer(srvw, kern.box.manager, kern.auth.manager, &kern.cfg)
	if err != nil {
		ws.logger.Error().Err(err).Msg("Unable to create")
		return err
	}
	if kern.core.GetNextConfig(kernel.CoreDebug).(bool) {
		srvw.SetDebug()
	}
	if err = srvw.Run(); err != nil {
		ws.logger.Error().Err(err).Msg("Unable to start")
		return err
	}
	ws.logger.Info().Str("listen", listenAddr).Str("base-url", baseURL).Msg("Start Service")
	ws.mxService.Lock()
	ws.srvw = srvw
	ws.mxService.Unlock()

Changes to kernel/kernel.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package kernel provides the main kernel service.
package kernel

import (
	"io"








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

// Package kernel provides the main kernel service.
package kernel

import (
	"io"

Changes to logger/logger.go.

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8



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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package logger implements a logging package for use in the Zettelstore.
package logger

import (
	"context"








>
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>







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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

// Package logger implements a logging package for use in the Zettelstore.
package logger

import (
	"context"
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type Level uint8

// Constants for Level
const (
	NoLevel        Level = iota // the absent log level
	TraceLevel                  // Log most internal activities
	DebugLevel                  // Log most data updates
	SenseLevel                  // Log activities of minor interest
	InfoLevel                   // Log normal activities
	WarnLevel                   // Log event that can be easily recovered
	ErrorLevel                  // Log (persistent) errors
	FatalLevel                  // Log event that cannot be recovered within an internal acitivty
	PanicLevel                  // Log event that must stop the software
	MandatoryLevel              // Log only mandatory events
	NeverLevel                  // Logging is disabled
)

var logLevel = [...]string{
	"     ",
	"TRACE",
	"DEBUG",
	"SENSE",
	"INFO ",
	"WARN ",
	"ERROR",
	"FATAL",
	"PANIC",
	">>>>>",
	"NEVER",
}

var strLevel = [...]string{
	"",
	"trace",
	"debug",
	"sense",
	"info",
	"warn",
	"error",
	"fatal",
	"panic",
	"mandatory",
	"disabled",
}

// IsValid returns true, if the level is a valid level
func (l Level) IsValid() bool { return TraceLevel <= l && l <= NeverLevel }








<

<

<
<








<

<

<
<








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type Level uint8

// Constants for Level
const (
	NoLevel        Level = iota // the absent log level
	TraceLevel                  // Log most internal activities
	DebugLevel                  // Log most data updates

	InfoLevel                   // Log normal activities

	ErrorLevel                  // Log (persistent) errors


	MandatoryLevel              // Log only mandatory events
	NeverLevel                  // Logging is disabled
)

var logLevel = [...]string{
	"     ",
	"TRACE",
	"DEBUG",

	"INFO ",

	"ERROR",


	">>>>>",
	"NEVER",
}

var strLevel = [...]string{
	"",
	"trace",
	"debug",

	"info",

	"error",


	"mandatory",
	"disabled",
}

// IsValid returns true, if the level is a valid level
func (l Level) IsValid() bool { return TraceLevel <= l && l <= NeverLevel }

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// Trace creates a tracing message.
func (l *Logger) Trace() *Message { return newMessage(l, TraceLevel) }

// Debug creates a debug message.
func (l *Logger) Debug() *Message { return newMessage(l, DebugLevel) }

// Sense creates a message suitable for sensing data.
func (l *Logger) Sense() *Message { return newMessage(l, SenseLevel) }

// Info creates a message suitable for information data.
func (l *Logger) Info() *Message { return newMessage(l, InfoLevel) }

// Warn creates a message suitable for warning the user.
func (l *Logger) Warn() *Message { return newMessage(l, WarnLevel) }

// Error creates a message suitable for errors.
func (l *Logger) Error() *Message { return newMessage(l, ErrorLevel) }

// IfErr creates an error message and sets the go error, if there is an error.
func (l *Logger) IfErr(err error) *Message {
	if err != nil {
		return newMessage(l, ErrorLevel).Err(err)
	}
	return nil
}

// Fatal creates a message suitable for fatal errors.
func (l *Logger) Fatal() *Message { return newMessage(l, FatalLevel) }

// Panic creates a message suitable for panicing.
func (l *Logger) Panic() *Message { return newMessage(l, PanicLevel) }

// Mandatory creates a message that will always logged, except when logging
// is disabled.
func (l *Logger) Mandatory() *Message { return newMessage(l, MandatoryLevel) }

// Clone creates a message to clone the logger.
func (l *Logger) Clone() *Message {
	msg := newMessage(l, NeverLevel)







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// Trace creates a tracing message.
func (l *Logger) Trace() *Message { return newMessage(l, TraceLevel) }

// Debug creates a debug message.
func (l *Logger) Debug() *Message { return newMessage(l, DebugLevel) }




// Info creates a message suitable for information data.
func (l *Logger) Info() *Message { return newMessage(l, InfoLevel) }




// Error creates a message suitable for errors.
func (l *Logger) Error() *Message { return newMessage(l, ErrorLevel) }















// Mandatory creates a message that will always logged, except when logging
// is disabled.
func (l *Logger) Mandatory() *Message { return newMessage(l, MandatoryLevel) }

// Clone creates a message to clone the logger.
func (l *Logger) Clone() *Message {
	msg := newMessage(l, NeverLevel)

Changes to logger/logger_test.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package logger_test

import (
	"fmt"
	"os"








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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package logger_test

import (
	"fmt"
	"os"
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	testcases := []struct {
		text string
		exp  logger.Level
	}{
		{"tra", logger.TraceLevel},
		{"deb", logger.DebugLevel},
		{"info", logger.InfoLevel},
		{"warn", logger.WarnLevel},
		{"err", logger.ErrorLevel},
		{"fata", logger.FatalLevel},
		{"pan", logger.PanicLevel},
		{"manda", logger.MandatoryLevel},
		{"dis", logger.NeverLevel},
		{"d", logger.Level(0)},
	}
	for i, tc := range testcases {
		got := logger.ParseLevel(tc.text)
		if got != tc.exp {
			t.Errorf("%d: ParseLevel(%q) == %q, but got %q", i, tc.text, tc.exp, got)
		}
	}
}

func BenchmarkDisabled(b *testing.B) {
	log := logger.New(&stderrLogWriter{}, "").SetLevel(logger.NeverLevel)
	for n := 0; n < b.N; n++ {
		log.Info().Str("key", "val").Msg("Benchmark")
	}
}

type stderrLogWriter struct{}

func (*stderrLogWriter) WriteMessage(level logger.Level, ts time.Time, prefix, msg string, details []byte) error {
	fmt.Fprintf(os.Stderr, "%v %v %v %v %v\n", level.Format(), ts, prefix, msg, string(details))
	return nil
}

type testLogWriter struct{}

func (*testLogWriter) WriteMessage(logger.Level, time.Time, string, string, []byte) error {
	return nil
}

func BenchmarkStrMessage(b *testing.B) {
	log := logger.New(&testLogWriter{}, "")
	for n := 0; n < b.N; n++ {
		log.Info().Str("key", "val").Msg("Benchmark")
	}
}

func BenchmarkMessage(b *testing.B) {
	log := logger.New(&testLogWriter{}, "")
	for n := 0; n < b.N; n++ {
		log.Info().Msg("Benchmark")
	}
}

func BenchmarkCloneStrMessage(b *testing.B) {
	log := logger.New(&testLogWriter{}, "").Clone().Str("sss", "ttt").Child()
	for n := 0; n < b.N; n++ {
		log.Info().Msg("123456789")
	}
}







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	testcases := []struct {
		text string
		exp  logger.Level
	}{
		{"tra", logger.TraceLevel},
		{"deb", logger.DebugLevel},
		{"info", logger.InfoLevel},

		{"err", logger.ErrorLevel},


		{"manda", logger.MandatoryLevel},
		{"dis", logger.NeverLevel},
		{"d", logger.Level(0)},
	}
	for i, tc := range testcases {
		got := logger.ParseLevel(tc.text)
		if got != tc.exp {
			t.Errorf("%d: ParseLevel(%q) == %q, but got %q", i, tc.text, tc.exp, got)
		}
	}
}

func BenchmarkDisabled(b *testing.B) {
	log := logger.New(&stderrLogWriter{}, "").SetLevel(logger.NeverLevel)
	for range b.N {
		log.Info().Str("key", "val").Msg("Benchmark")
	}
}

type stderrLogWriter struct{}

func (*stderrLogWriter) WriteMessage(level logger.Level, ts time.Time, prefix, msg string, details []byte) error {
	fmt.Fprintf(os.Stderr, "%v %v %v %v %v\n", level.Format(), ts, prefix, msg, string(details))
	return nil
}

type testLogWriter struct{}

func (*testLogWriter) WriteMessage(logger.Level, time.Time, string, string, []byte) error {
	return nil
}

func BenchmarkStrMessage(b *testing.B) {
	log := logger.New(&testLogWriter{}, "")
	for range b.N {
		log.Info().Str("key", "val").Msg("Benchmark")
	}
}

func BenchmarkMessage(b *testing.B) {
	log := logger.New(&testLogWriter{}, "")
	for range b.N {
		log.Info().Msg("Benchmark")
	}
}

func BenchmarkCloneStrMessage(b *testing.B) {
	log := logger.New(&testLogWriter{}, "").Clone().Str("sss", "ttt").Child()
	for range b.N {
		log.Info().Msg("123456789")
	}
}

Changes to logger/message.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package logger

import (
	"context"
	"net/http"
	"strconv"
	"sync"

	"zettelstore.de/client.fossil/api"
	"zettelstore.de/z/zettel/id"
)

// Message presents a message to log.
type Message struct {
	logger *Logger
	level  Level








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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2022-present Detlef Stern
//-----------------------------------------------------------------------------

package logger

import (
	"context"
	"net/http"
	"strconv"
	"sync"

	"t73f.de/r/zsc/api"
	"zettelstore.de/z/zettel/id"
)

// Message presents a message to log.
type Message struct {
	logger *Logger
	level  Level

Changes to parser/blob/blob.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package blob provides a parser of binary data.
package blob

import (
	"zettelstore.de/z/ast"
	"zettelstore.de/z/input"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	parser.Register(&parser.Info{
		Name:          meta.SyntaxGif,








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

// Package blob provides a parser of binary data.
package blob

import (
	"t73f.de/r/zsc/input"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	parser.Register(&parser.Info{
		Name:          meta.SyntaxGif,

Changes to parser/cleaner/cleaner.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package cleaner provides functions to clean up the parsed AST.
package cleaner

import (
	"strconv"








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

// Package cleaner provides functions to clean up the parsed AST.
package cleaner

import (
	"strconv"

Changes to parser/draw/canvas.go.

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// license, but later changed to fulfil the needs of Zettelstore. The following
// statements affects the original code as found on
// https://github.com/asciitosvg/asciitosvg (Commit:
// ca82a5ce41e2190a05e07af6e8b3ea4e3256a283, 2020-11-20):
//
// Copyright 2012 - 2018 The ASCIIToSVG Contributors
// All rights reserved.



//-----------------------------------------------------------------------------

package draw

import (
	"bytes"
	"fmt"







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// license, but later changed to fulfil the needs of Zettelstore. The following
// statements affects the original code as found on
// https://github.com/asciitosvg/asciitosvg (Commit:
// ca82a5ce41e2190a05e07af6e8b3ea4e3256a283, 2020-11-20):
//
// Copyright 2012 - 2018 The ASCIIToSVG Contributors
// All rights reserved.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2022-present Detlef Stern
//-----------------------------------------------------------------------------

package draw

import (
	"bytes"
	"fmt"
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	c.findTexts()
	sort.Sort(c.objs)
}

// findPaths by starting with a point that wasn't yet visited, beginning at the top
// left of the grid.
func (c *canvas) findPaths() {
	for y := 0; y < c.siz.Y; y++ {
		p := point{y: y}
		for x := 0; x < c.siz.X; x++ {
			p.x = x
			if c.isVisited(p) {
				continue
			}
			ch := c.at(p)
			if !ch.isPathStart() {
				continue







|

|







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	c.findTexts()
	sort.Sort(c.objs)
}

// findPaths by starting with a point that wasn't yet visited, beginning at the top
// left of the grid.
func (c *canvas) findPaths() {
	for y := range c.siz.Y {
		p := point{y: y}
		for x := range c.siz.X {
			p.x = x
			if c.isVisited(p) {
				continue
			}
			ch := c.at(p)
			if !ch.isPathStart() {
				continue
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			c.objs = append(c.objs, objs...)
		}
	}
}

// findTexts with a second pass through the grid attempts to identify any text within the grid.
func (c *canvas) findTexts() {
	for y := 0; y < c.siz.Y; y++ {
		p := point{}
		p.y = y
		for x := 0; x < c.siz.X; x++ {
			p.x = x
			if c.isVisited(p) {
				continue
			}
			ch := c.at(p)
			if !ch.isTextStart() {
				continue







|


|







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			c.objs = append(c.objs, objs...)
		}
	}
}

// findTexts with a second pass through the grid attempts to identify any text within the grid.
func (c *canvas) findTexts() {
	for y := range c.siz.Y {
		p := point{}
		p.y = y
		for x := range c.siz.X {
			p.x = x
			if c.isVisited(p) {
				continue
			}
			ch := c.at(p)
			if !ch.isTextStart() {
				continue

Changes to parser/draw/canvas_test.go.

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// license, but later changed to fulfil the needs of Zettelstore. The following
// statements affects the original code as found on
// https://github.com/asciitosvg/asciitosvg (Commit:
// ca82a5ce41e2190a05e07af6e8b3ea4e3256a283, 2020-11-20):
//
// Copyright 2012 - 2018 The ASCIIToSVG Contributors
// All rights reserved.



//-----------------------------------------------------------------------------

package draw

import (
	"reflect"
	"strings"







>
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// license, but later changed to fulfil the needs of Zettelstore. The following
// statements affects the original code as found on
// https://github.com/asciitosvg/asciitosvg (Commit:
// ca82a5ce41e2190a05e07af6e8b3ea4e3256a283, 2020-11-20):
//
// Copyright 2012 - 2018 The ASCIIToSVG Contributors
// All rights reserved.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2022-present Detlef Stern
//-----------------------------------------------------------------------------

package draw

import (
	"reflect"
	"strings"
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		"             |     |       |         |   |",
		"             +-----+-------+---------+---+",
		"",
		"",
	}
	chunk := []byte(strings.Join(data, "\n"))
	input := make([]byte, 0, len(chunk)*b.N)
	for i := 0; i < b.N; i++ {
		input = append(input, chunk...)
	}
	expected := 30 * b.N
	b.ResetTimer()
	c, err := newCanvas(input)
	if err != nil {
		b.Fatalf("Error creating canvas: %s", err)







|







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		"             |     |       |         |   |",
		"             +-----+-------+---------+---+",
		"",
		"",
	}
	chunk := []byte(strings.Join(data, "\n"))
	input := make([]byte, 0, len(chunk)*b.N)
	for range b.N {
		input = append(input, chunk...)
	}
	expected := 30 * b.N
	b.ResetTimer()
	c, err := newCanvas(input)
	if err != nil {
		b.Fatalf("Error creating canvas: %s", err)

Changes to parser/draw/char.go.

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// license, but later changed to fulfil the needs of Zettelstore. The following
// statements affects the original code as found on
// https://github.com/asciitosvg/asciitosvg (Commit:
// ca82a5ce41e2190a05e07af6e8b3ea4e3256a283, 2020-11-20):
//
// Copyright 2012 - 2018 The ASCIIToSVG Contributors
// All rights reserved.



//-----------------------------------------------------------------------------

package draw

import "unicode"

type char rune







>
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>







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// license, but later changed to fulfil the needs of Zettelstore. The following
// statements affects the original code as found on
// https://github.com/asciitosvg/asciitosvg (Commit:
// ca82a5ce41e2190a05e07af6e8b3ea4e3256a283, 2020-11-20):
//
// Copyright 2012 - 2018 The ASCIIToSVG Contributors
// All rights reserved.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2022-present Detlef Stern
//-----------------------------------------------------------------------------

package draw

import "unicode"

type char rune

Changes to parser/draw/draw.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package draw provides a parser to create SVG from ASCII drawing.
//
// It is not a parser registered by the general parser framework (directed by
// metadata "syntax" of a zettel). It will be used when a zettel is evaluated.
package draw

import (
	"strconv"

	"zettelstore.de/client.fossil/attrs"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/input"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	parser.Register(&parser.Info{
		Name:          meta.SyntaxDraw,








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>











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|







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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2022-present Detlef Stern
//-----------------------------------------------------------------------------

// Package draw provides a parser to create SVG from ASCII drawing.
//
// It is not a parser registered by the general parser framework (directed by
// metadata "syntax" of a zettel). It will be used when a zettel is evaluated.
package draw

import (
	"strconv"

	"t73f.de/r/zsc/attrs"
	"t73f.de/r/zsc/input"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	parser.Register(&parser.Info{
		Name:          meta.SyntaxDraw,

Changes to parser/draw/draw_test.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package draw_test

import (
	"testing"

	"zettelstore.de/z/config"
	"zettelstore.de/z/input"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/meta"
)

func FuzzParseBlocks(f *testing.F) {
	f.Fuzz(func(t *testing.T, src []byte) {
		t.Parallel()








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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2022-present Detlef Stern
//-----------------------------------------------------------------------------

package draw_test

import (
	"testing"

	"t73f.de/r/zsc/input"
	"zettelstore.de/z/config"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/meta"
)

func FuzzParseBlocks(f *testing.F) {
	f.Fuzz(func(t *testing.T, src []byte) {
		t.Parallel()

Changes to parser/draw/object.go.

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// license, but later changed to fulfil the needs of Zettelstore. The following
// statements affects the original code as found on
// https://github.com/asciitosvg/asciitosvg (Commit:
// ca82a5ce41e2190a05e07af6e8b3ea4e3256a283, 2020-11-20):
//
// Copyright 2012 - 2018 The ASCIIToSVG Contributors
// All rights reserved.



//-----------------------------------------------------------------------------

package draw

import "fmt"

// object represents one of an open path, a closed path, or text.







>
>
>







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// license, but later changed to fulfil the needs of Zettelstore. The following
// statements affects the original code as found on
// https://github.com/asciitosvg/asciitosvg (Commit:
// ca82a5ce41e2190a05e07af6e8b3ea4e3256a283, 2020-11-20):
//
// Copyright 2012 - 2018 The ASCIIToSVG Contributors
// All rights reserved.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2022-present Detlef Stern
//-----------------------------------------------------------------------------

package draw

import "fmt"

// object represents one of an open path, a closed path, or text.

Changes to parser/draw/point.go.

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// license, but later changed to fulfil the needs of Zettelstore. The following
// statements affects the original code as found on
// https://github.com/asciitosvg/asciitosvg (Commit:
// ca82a5ce41e2190a05e07af6e8b3ea4e3256a283, 2020-11-20):
//
// Copyright 2012 - 2018 The ASCIIToSVG Contributors
// All rights reserved.



//-----------------------------------------------------------------------------

package draw

import "fmt"

// A renderHint suggests ways the SVG renderer may appropriately represent this point.







>
>
>







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// license, but later changed to fulfil the needs of Zettelstore. The following
// statements affects the original code as found on
// https://github.com/asciitosvg/asciitosvg (Commit:
// ca82a5ce41e2190a05e07af6e8b3ea4e3256a283, 2020-11-20):
//
// Copyright 2012 - 2018 The ASCIIToSVG Contributors
// All rights reserved.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2022-present Detlef Stern
//-----------------------------------------------------------------------------

package draw

import "fmt"

// A renderHint suggests ways the SVG renderer may appropriately represent this point.

Changes to parser/draw/svg.go.

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// license, but later changed to fulfil the needs of Zettelstore. The following
// statements affects the original code as found on
// https://github.com/asciitosvg/asciitosvg (Commit:
// ca82a5ce41e2190a05e07af6e8b3ea4e3256a283, 2020-11-20):
//
// Copyright 2012 - 2018 The ASCIIToSVG Contributors
// All rights reserved.



//-----------------------------------------------------------------------------

package draw

import (
	"bytes"
	"fmt"







>
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>







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// license, but later changed to fulfil the needs of Zettelstore. The following
// statements affects the original code as found on
// https://github.com/asciitosvg/asciitosvg (Commit:
// ca82a5ce41e2190a05e07af6e8b3ea4e3256a283, 2020-11-20):
//
// Copyright 2012 - 2018 The ASCIIToSVG Contributors
// All rights reserved.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2022-present Detlef Stern
//-----------------------------------------------------------------------------

package draw

import (
	"bytes"
	"fmt"

Changes to parser/draw/svg_test.go.

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// license, but later changed to fulfil the needs of Zettelstore. The following
// statements affects the original code as found on
// https://github.com/asciitosvg/asciitosvg (Commit:
// ca82a5ce41e2190a05e07af6e8b3ea4e3256a283, 2020-11-20):
//
// Copyright 2012 - 2018 The ASCIIToSVG Contributors
// All rights reserved.



//-----------------------------------------------------------------------------

package draw

import (
	"strings"
	"testing"







>
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// license, but later changed to fulfil the needs of Zettelstore. The following
// statements affects the original code as found on
// https://github.com/asciitosvg/asciitosvg (Commit:
// ca82a5ce41e2190a05e07af6e8b3ea4e3256a283, 2020-11-20):
//
// Copyright 2012 - 2018 The ASCIIToSVG Contributors
// All rights reserved.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2022-present Detlef Stern
//-----------------------------------------------------------------------------

package draw

import (
	"strings"
	"testing"

Changes to parser/markdown/markdown.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package markdown provides a parser for markdown.
package markdown

import (
	"bytes"
	"fmt"
	"strconv"
	"strings"

	gm "github.com/yuin/goldmark"
	gmAst "github.com/yuin/goldmark/ast"
	gmText "github.com/yuin/goldmark/text"

	"zettelstore.de/client.fossil/attrs"

	"zettelstore.de/z/ast"
	"zettelstore.de/z/encoder/textenc"
	"zettelstore.de/z/input"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	parser.Register(&parser.Info{
		Name:          meta.SyntaxMarkdown,








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>


<







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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

// Package markdown provides a parser for markdown.
package markdown

import (
	"bytes"
	"fmt"
	"strconv"
	"strings"

	gm "github.com/yuin/goldmark"
	gmAst "github.com/yuin/goldmark/ast"
	gmText "github.com/yuin/goldmark/text"

	"t73f.de/r/zsc/attrs"
	"t73f.de/r/zsc/input"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/encoder/textenc"

	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	parser.Register(&parser.Info{
		Name:          meta.SyntaxMarkdown,
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		Content: p.acceptRawText(node),
	}
}

func (p *mdP) acceptRawText(node gmAst.Node) []byte {
	lines := node.Lines()
	result := make([]byte, 0, 512)
	for i := 0; i < lines.Len(); i++ {
		s := lines.At(i)
		line := s.Value(p.source)
		if l := len(line); l > 0 {
			if l > 1 && line[l-2] == '\r' && line[l-1] == '\n' {
				line = line[0 : l-2]
			} else if line[l-1] == '\n' || line[l-1] == '\r' {
				line = line[0 : l-1]







|







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		Content: p.acceptRawText(node),
	}
}

func (p *mdP) acceptRawText(node gmAst.Node) []byte {
	lines := node.Lines()
	result := make([]byte, 0, 512)
	for i := range lines.Len() {
		s := lines.At(i)
		line := s.Value(p.source)
		if l := len(line); l > 0 {
			if l > 1 && line[l-2] == '\r' && line[l-1] == '\n' {
				line = line[0 : l-2]
			} else if line[l-1] == '\n' || line[l-1] == '\r' {
				line = line[0 : l-1]
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			Attrs:   nil, // TODO
		},
	}
}

func (p *mdP) acceptRawHTML(node *gmAst.RawHTML) ast.InlineSlice {
	segs := make([][]byte, 0, node.Segments.Len())
	for i := 0; i < node.Segments.Len(); i++ {
		segment := node.Segments.At(i)
		segs = append(segs, segment.Value(p.source))
	}
	return ast.InlineSlice{
		&ast.LiteralNode{
			Kind:    ast.LiteralHTML,
			Attrs:   nil, // TODO: add HTML as language
			Content: bytes.Join(segs, nil),
		},
	}
}







|











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			Attrs:   nil, // TODO
		},
	}
}

func (p *mdP) acceptRawHTML(node *gmAst.RawHTML) ast.InlineSlice {
	segs := make([][]byte, 0, node.Segments.Len())
	for i := range node.Segments.Len() {
		segment := node.Segments.At(i)
		segs = append(segs, segment.Value(p.source))
	}
	return ast.InlineSlice{
		&ast.LiteralNode{
			Kind:    ast.LiteralHTML,
			Attrs:   nil, // TODO: add HTML as language
			Content: bytes.Join(segs, nil),
		},
	}
}

Changes to parser/markdown/markdown_test.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package markdown

import (
	"strings"
	"testing"








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>
>







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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package markdown

import (
	"strings"
	"testing"

Changes to parser/none/none.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package none provides a none-parser, e.g. for zettel with just metadata.
package none

import (
	"zettelstore.de/z/ast"
	"zettelstore.de/z/input"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	parser.Register(&parser.Info{
		Name:          meta.SyntaxNone,








>
>
>






|
|







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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

// Package none provides a none-parser, e.g. for zettel with just metadata.
package none

import (
	"t73f.de/r/zsc/input"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	parser.Register(&parser.Info{
		Name:          meta.SyntaxNone,

Changes to parser/parser.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package parser provides a generic interface to a range of different parsers.
package parser

import (
	"context"
	"fmt"
	"strings"

	"zettelstore.de/client.fossil/api"

	"zettelstore.de/z/ast"
	"zettelstore.de/z/config"
	"zettelstore.de/z/input"
	"zettelstore.de/z/parser/cleaner"
	"zettelstore.de/z/zettel"
	"zettelstore.de/z/zettel/meta"
)

// Info describes a single parser.
//








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>


<







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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

// Package parser provides a generic interface to a range of different parsers.
package parser

import (
	"context"
	"fmt"
	"strings"

	"t73f.de/r/zsc/api"
	"t73f.de/r/zsc/input"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/config"

	"zettelstore.de/z/parser/cleaner"
	"zettelstore.de/z/zettel"
	"zettelstore.de/z/zettel/meta"
)

// Info describes a single parser.
//
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	pi, ok := registry[syntax]
	if !ok {
		return false
	}
	return pi.IsASTParser
}

// IsTextFormat returns whether the given syntax is known to be a text format.
func IsTextFormat(syntax string) bool {
	pi, ok := registry[syntax]
	if !ok {
		return false
	}
	return pi.IsTextFormat
}

// IsImageFormat returns whether the given syntax is known to be an image format.
func IsImageFormat(syntax string) bool {
	pi, ok := registry[syntax]
	if !ok {
		return false
	}
	return pi.IsImageFormat
}

// ParseBlocks parses some input and returns a slice of block nodes.
func ParseBlocks(inp *input.Input, m *meta.Meta, syntax string, hi config.HTMLInsecurity) ast.BlockSlice {
	return parseBlocksAndClean(inp, m, syntax, hi)
}
func parseBlocksAndClean(inp *input.Input, m *meta.Meta, syntax string, hi config.HTMLInsecurity) ast.BlockSlice {
	bs := Get(syntax).ParseBlocks(inp, m, syntax)
	cleaner.CleanBlockSlice(&bs, hi.AllowHTML(syntax))
	return bs
}

// ParseInlines parses some input and returns a slice of inline nodes.
func ParseInlines(inp *input.Input, syntax string) ast.InlineSlice {







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<











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	pi, ok := registry[syntax]
	if !ok {
		return false
	}
	return pi.IsASTParser
}










// IsImageFormat returns whether the given syntax is known to be an image format.
func IsImageFormat(syntax string) bool {
	pi, ok := registry[syntax]
	if !ok {
		return false
	}
	return pi.IsImageFormat
}

// ParseBlocks parses some input and returns a slice of block nodes.
func ParseBlocks(inp *input.Input, m *meta.Meta, syntax string, hi config.HTMLInsecurity) ast.BlockSlice {



	bs := Get(syntax).ParseBlocks(inp, m, syntax)
	cleaner.CleanBlockSlice(&bs, hi.AllowHTML(syntax))
	return bs
}

// ParseInlines parses some input and returns a slice of inline nodes.
func ParseInlines(inp *input.Input, syntax string) ast.InlineSlice {
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	return ast.CreateInlineSliceFromWords(meta.ListFromValue(s)...)
}

// NormalizedSpacedText returns the given string, but normalize multiple spaces to one space.
func NormalizedSpacedText(s string) string { return strings.Join(meta.ListFromValue(s), " ") }

// ParseDescription returns a suitable description stored in the metadata as an inline slice.

func ParseDescription(m *meta.Meta) ast.InlineSlice {
	if m == nil {
		return nil
	}
	if descr, found := m.Get(api.KeySummary); found {
		in := ParseMetadata(descr)
		cleaner.CleanInlineLinks(&in)
		return in
	}
	if title, found := m.Get(api.KeyTitle); found {
		return ParseSpacedText(title)
	}
	return nil
}

// ParseZettel parses the zettel based on the syntax.
func ParseZettel(ctx context.Context, zettel zettel.Zettel, syntax string, rtConfig config.Config) *ast.ZettelNode {
	m := zettel.Meta
	inhMeta := m
	if rtConfig != nil {
		inhMeta = rtConfig.AddDefaultValues(ctx, inhMeta)
	}
	if syntax == "" {
		syntax, _ = inhMeta.Get(api.KeySyntax)
	}
	parseMeta := inhMeta
	if syntax == meta.SyntaxNone {
		parseMeta = m
	}

	hi := config.NoHTML
	if rtConfig != nil {
		hi = rtConfig.GetHTMLInsecurity()
	}
	return &ast.ZettelNode{
		Meta:    m,
		Content: zettel.Content,
		Zid:     m.Zid,
		InhMeta: inhMeta,
		Ast:     parseBlocksAndClean(input.NewInput(zettel.Content.AsBytes()), parseMeta, syntax, hi),
		Syntax:  syntax,
	}
}







>












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|















|



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	return ast.CreateInlineSliceFromWords(meta.ListFromValue(s)...)
}

// NormalizedSpacedText returns the given string, but normalize multiple spaces to one space.
func NormalizedSpacedText(s string) string { return strings.Join(meta.ListFromValue(s), " ") }

// ParseDescription returns a suitable description stored in the metadata as an inline slice.
// This is done for an image in most cases.
func ParseDescription(m *meta.Meta) ast.InlineSlice {
	if m == nil {
		return nil
	}
	if descr, found := m.Get(api.KeySummary); found {
		in := ParseMetadata(descr)
		cleaner.CleanInlineLinks(&in)
		return in
	}
	if title, found := m.Get(api.KeyTitle); found {
		return ParseSpacedText(title)
	}
	return ast.CreateInlineSliceFromWords("Zettel", "without", "title:", m.Zid.String())
}

// ParseZettel parses the zettel based on the syntax.
func ParseZettel(ctx context.Context, zettel zettel.Zettel, syntax string, rtConfig config.Config) *ast.ZettelNode {
	m := zettel.Meta
	inhMeta := m
	if rtConfig != nil {
		inhMeta = rtConfig.AddDefaultValues(ctx, inhMeta)
	}
	if syntax == "" {
		syntax = inhMeta.GetDefault(api.KeySyntax, meta.DefaultSyntax)
	}
	parseMeta := inhMeta
	if syntax == meta.SyntaxNone {
		parseMeta = m
	}

	hi := config.NoHTML
	if rtConfig != nil {
		hi = rtConfig.GetHTMLInsecurity()
	}
	return &ast.ZettelNode{
		Meta:    m,
		Content: zettel.Content,
		Zid:     m.Zid,
		InhMeta: inhMeta,
		Ast:     ParseBlocks(input.NewInput(zettel.Content.AsBytes()), parseMeta, syntax, hi),
		Syntax:  syntax,
	}
}

Changes to parser/parser_test.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package parser_test

import (
	"testing"









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//-----------------------------------------------------------------------------
// Copyright (c) 2021-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2021-present Detlef Stern
//-----------------------------------------------------------------------------

package parser_test

import (
	"testing"

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)

func TestParserType(t *testing.T) {
	syntaxSet := strfun.NewSet(parser.GetSyntaxes()...)
	testCases := []struct {
		syntax string
		ast    bool
		text   bool
		image  bool
	}{
		{meta.SyntaxHTML, false, true, false},
		{meta.SyntaxCSS, false, true, false},
		{meta.SyntaxDraw, true, true, false},
		{meta.SyntaxGif, false, false, true},
		{meta.SyntaxJPEG, false, false, true},
		{meta.SyntaxJPG, false, false, true},
		{meta.SyntaxMarkdown, true, true, false},
		{meta.SyntaxMD, true, true, false},
		{meta.SyntaxNone, false, false, false},
		{meta.SyntaxPlain, false, true, false},
		{meta.SyntaxPNG, false, false, true},
		{meta.SyntaxSVG, false, true, true},
		{meta.SyntaxSxn, false, true, false},
		{meta.SyntaxText, false, true, false},
		{meta.SyntaxTxt, false, true, false},
		{meta.SyntaxWebp, false, false, true},
		{meta.SyntaxZmk, true, true, false},
	}
	for _, tc := range testCases {
		delete(syntaxSet, tc.syntax)
		if got := parser.IsASTParser(tc.syntax); got != tc.ast {
			t.Errorf("Syntax %q is AST: %v, but got %v", tc.syntax, tc.ast, got)
		}
		if got := parser.IsTextFormat(tc.syntax); got != tc.text {
			t.Errorf("Syntax %q is text: %v, but got %v", tc.syntax, tc.text, got)
		}
		if got := parser.IsImageFormat(tc.syntax); got != tc.image {
			t.Errorf("Syntax %q is image: %v, but got %v", tc.syntax, tc.image, got)
		}
	}
	for syntax := range syntaxSet {
		t.Errorf("Forgot to test syntax %q", syntax)
	}
}







<


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)

func TestParserType(t *testing.T) {
	syntaxSet := strfun.NewSet(parser.GetSyntaxes()...)
	testCases := []struct {
		syntax string
		ast    bool

		image  bool
	}{
		{meta.SyntaxHTML, false, false},
		{meta.SyntaxCSS, false, false},
		{meta.SyntaxDraw, true, false},
		{meta.SyntaxGif, false, true},
		{meta.SyntaxJPEG, false, true},
		{meta.SyntaxJPG, false, true},
		{meta.SyntaxMarkdown, true, false},
		{meta.SyntaxMD, true, false},
		{meta.SyntaxNone, false, false},
		{meta.SyntaxPlain, false, false},
		{meta.SyntaxPNG, false, true},
		{meta.SyntaxSVG, false, true},
		{meta.SyntaxSxn, false, false},
		{meta.SyntaxText, false, false},
		{meta.SyntaxTxt, false, false},
		{meta.SyntaxWebp, false, true},
		{meta.SyntaxZmk, true, false},
	}
	for _, tc := range testCases {
		delete(syntaxSet, tc.syntax)
		if got := parser.IsASTParser(tc.syntax); got != tc.ast {
			t.Errorf("Syntax %q is AST: %v, but got %v", tc.syntax, tc.ast, got)
		}



		if got := parser.IsImageFormat(tc.syntax); got != tc.image {
			t.Errorf("Syntax %q is image: %v, but got %v", tc.syntax, tc.image, got)
		}
	}
	for syntax := range syntaxSet {
		t.Errorf("Forgot to test syntax %q", syntax)
	}
}

Changes to parser/plain/plain.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package plain provides a parser for plain text data.
package plain

import (
	"bytes"
	"strings"

	"zettelstore.de/client.fossil/attrs"
	"zettelstore.de/sx.fossil/sxbuiltins"
	"zettelstore.de/sx.fossil/sxreader"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/input"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	parser.Register(&parser.Info{
		Name:          meta.SyntaxTxt,








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

// Package plain provides a parser for plain text data.
package plain

import (
	"bytes"
	"strings"

	"t73f.de/r/sx/sxreader"
	"t73f.de/r/zsc/attrs"
	"t73f.de/r/zsc/input"
	"zettelstore.de/z/ast"

	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	parser.Register(&parser.Info{
		Name:          meta.SyntaxTxt,
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	}
	// TODO: check proper end </svg>
	return svgSrc
}

func parseSxnBlocks(inp *input.Input, _ *meta.Meta, syntax string) ast.BlockSlice {
	rd := sxreader.MakeReader(bytes.NewReader(inp.Src))
	objs, err := rd.ReadAll()
	if err != nil {
		return ast.BlockSlice{
			&ast.VerbatimNode{
				Kind:    ast.VerbatimProg,
				Attrs:   attrs.Attributes{"": syntax},
				Content: inp.ScanLineContent(),
			},


			ast.CreateParaNode(&ast.TextNode{
				Text: err.Error(),
			}),
		}
	}
	result := make(ast.BlockSlice, len(objs))
	for i, obj := range objs {
		var buf bytes.Buffer
		sxbuiltins.Print(&buf, obj)
		result[i] = &ast.VerbatimNode{
			Kind:    ast.VerbatimProg,
			Attrs:   attrs.Attributes{"": syntax},
			Content: buf.Bytes(),
		}
	}
	return result
}

func parseSxnInlines(inp *input.Input, syntax string) ast.InlineSlice {
	inp.SkipToEOL()
	return ast.InlineSlice{&ast.LiteralNode{
		Kind:    ast.LiteralProg,
		Attrs:   attrs.Attributes{"": syntax},
		Content: append([]byte(nil), inp.Src[0:inp.Pos]...),
	}}
}







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<












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	}
	// TODO: check proper end </svg>
	return svgSrc
}

func parseSxnBlocks(inp *input.Input, _ *meta.Meta, syntax string) ast.BlockSlice {
	rd := sxreader.MakeReader(bytes.NewReader(inp.Src))
	_, err := rd.ReadAll()

	result := ast.BlockSlice{
		&ast.VerbatimNode{
			Kind:    ast.VerbatimProg,
			Attrs:   attrs.Attributes{"": syntax},
			Content: inp.ScanLineContent(),
		},
	}
	if err != nil {
		result = append(result, ast.CreateParaNode(&ast.TextNode{
			Text: err.Error(),
		}))











	}
	return result
}

func parseSxnInlines(inp *input.Input, syntax string) ast.InlineSlice {
	inp.SkipToEOL()
	return ast.InlineSlice{&ast.LiteralNode{
		Kind:    ast.LiteralProg,
		Attrs:   attrs.Attributes{"": syntax},
		Content: append([]byte(nil), inp.Src[0:inp.Pos]...),
	}}
}

Changes to parser/zettelmark/block.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package zettelmark

import (
	"fmt"

	"zettelstore.de/z/ast"
	"zettelstore.de/z/input"
)

// parseBlockSlice parses a sequence of blocks.
func (cp *zmkP) parseBlockSlice() ast.BlockSlice {
	inp := cp.inp
	var lastPara *ast.ParaNode
	bs := ast.BlockSlice{}








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package zettelmark

import (
	"fmt"

	"t73f.de/r/zsc/input"
	"zettelstore.de/z/ast"
)

// parseBlockSlice parses a sequence of blocks.
func (cp *zmkP) parseBlockSlice() ast.BlockSlice {
	inp := cp.inp
	var lastPara *ast.ParaNode
	bs := ast.BlockSlice{}
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		}
	}
	return ln, newLnCount
}

func (cp *zmkP) cleanupParsedNestedList(newLnCount int) (res ast.BlockNode, success bool) {
	listDepth := len(cp.lists)
	for i := 0; i < newLnCount; i++ {
		childPos := listDepth - i - 1
		parentPos := childPos - 1
		if parentPos < 0 {
			return cp.lists[0], true
		}
		if prevItems := cp.lists[parentPos].Items; len(prevItems) > 0 {
			lastItem := len(prevItems) - 1







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		}
	}
	return ln, newLnCount
}

func (cp *zmkP) cleanupParsedNestedList(newLnCount int) (res ast.BlockNode, success bool) {
	listDepth := len(cp.lists)
	for i := range newLnCount {
		childPos := listDepth - i - 1
		parentPos := childPos - 1
		if parentPos < 0 {
			return cp.lists[0], true
		}
		if prevItems := cp.lists[parentPos].Items; len(prevItems) > 0 {
			lastItem := len(prevItems) - 1

Changes to parser/zettelmark/inline.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package zettelmark

import (
	"bytes"
	"fmt"
	"strings"

	"zettelstore.de/client.fossil/attrs"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/input"
	"zettelstore.de/z/zettel/meta"
)

// parseInlineSlice parses a sequence of Inlines until EOS.
func (cp *zmkP) parseInlineSlice() (ins ast.InlineSlice) {
	inp := cp.inp
	for inp.Ch != input.EOS {








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package zettelmark

import (
	"bytes"
	"fmt"
	"strings"

	"t73f.de/r/zsc/attrs"
	"t73f.de/r/zsc/input"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/zettel/meta"
)

// parseInlineSlice parses a sequence of Inlines until EOS.
func (cp *zmkP) parseInlineSlice() (ins ast.InlineSlice) {
	inp := cp.inp
	for inp.Ch != input.EOS {
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		case '{':
			inp.Next()
			if inp.Ch == '{' {
				in, success = cp.parseEmbed()
			}
		case '%':
			in, success = cp.parseComment()
		case '_', '*', '>', '~', '^', ',', '"', ':':
			in, success = cp.parseFormat()
		case '@', '\'', '`', '=', runeModGrave:
			in, success = cp.parseLiteral()
		case '$':
			in, success = cp.parseLiteralMath()
		case '\\':
			return cp.parseBackslash()







|







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		case '{':
			inp.Next()
			if inp.Ch == '{' {
				in, success = cp.parseEmbed()
			}
		case '%':
			in, success = cp.parseComment()
		case '_', '*', '>', '~', '^', ',', '"', '#', ':':
			in, success = cp.parseFormat()
		case '@', '\'', '`', '=', runeModGrave:
			in, success = cp.parseLiteral()
		case '$':
			in, success = cp.parseLiteralMath()
		case '\\':
			return cp.parseBackslash()
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		return cp.parseBackslashRest()
	}
	for {
		inp.Next()
		switch inp.Ch {
		// The following case must contain all runes that occur in parseInline!
		// Plus the closing brackets ] and } and ) and the middle |
		case input.EOS, '\n', '\r', ' ', '\t', '[', ']', '{', '}', '(', ')', '|', '%', '_', '*', '>', '~', '^', ',', '"', ':', '\'', '@', '`', runeModGrave, '$', '=', '\\', '-', '&':
			return &ast.TextNode{Text: string(inp.Src[pos:inp.Pos])}
		}
	}
}

func (cp *zmkP) parseBackslash() ast.InlineNode {
	inp := cp.inp







|







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		return cp.parseBackslashRest()
	}
	for {
		inp.Next()
		switch inp.Ch {
		// The following case must contain all runes that occur in parseInline!
		// Plus the closing brackets ] and } and ) and the middle |
		case input.EOS, '\n', '\r', ' ', '\t', '[', ']', '{', '}', '(', ')', '|', '%', '_', '*', '>', '~', '^', ',', '"', '#', ':', '\'', '@', '`', runeModGrave, '$', '=', '\\', '-', '&':
			return &ast.TextNode{Text: string(inp.Src[pos:inp.Pos])}
		}
	}
}

func (cp *zmkP) parseBackslash() ast.InlineNode {
	inp := cp.inp
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	'_': ast.FormatEmph,
	'*': ast.FormatStrong,
	'>': ast.FormatInsert,
	'~': ast.FormatDelete,
	'^': ast.FormatSuper,
	',': ast.FormatSub,
	'"': ast.FormatQuote,

	':': ast.FormatSpan,
}

func (cp *zmkP) parseFormat() (res ast.InlineNode, success bool) {
	inp := cp.inp
	fch := inp.Ch
	kind, ok := mapRuneFormat[fch]







>







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	'_': ast.FormatEmph,
	'*': ast.FormatStrong,
	'>': ast.FormatInsert,
	'~': ast.FormatDelete,
	'^': ast.FormatSuper,
	',': ast.FormatSub,
	'"': ast.FormatQuote,
	'#': ast.FormatMark,
	':': ast.FormatSpan,
}

func (cp *zmkP) parseFormat() (res ast.InlineNode, success bool) {
	inp := cp.inp
	fch := inp.Ch
	kind, ok := mapRuneFormat[fch]

Changes to parser/zettelmark/node.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package zettelmark

import "zettelstore.de/z/ast"

// Internal nodes for parsing zettelmark. These will be removed in








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package zettelmark

import "zettelstore.de/z/ast"

// Internal nodes for parsing zettelmark. These will be removed in

Changes to parser/zettelmark/post-processor.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package zettelmark

import (
	"strings"









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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

package zettelmark

import (
	"strings"

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		}
	}
}

func (pp *postProcessor) visitTable(tn *ast.TableNode) {
	width := tableWidth(tn)
	tn.Align = make([]ast.Alignment, width)
	for i := 0; i < width; i++ {
		tn.Align[i] = ast.AlignDefault
	}
	if len(tn.Rows) > 0 && isHeaderRow(tn.Rows[0]) {
		tn.Header = tn.Rows[0]
		tn.Rows = tn.Rows[1:]
		pp.visitTableHeader(tn)
	}







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		}
	}
}

func (pp *postProcessor) visitTable(tn *ast.TableNode) {
	width := tableWidth(tn)
	tn.Align = make([]ast.Alignment, width)
	for i := range width {
		tn.Align[i] = ast.AlignDefault
	}
	if len(tn.Rows) > 0 && isHeaderRow(tn.Rows[0]) {
		tn.Header = tn.Rows[0]
		tn.Rows = tn.Rows[1:]
		pp.visitTableHeader(tn)
	}

Changes to parser/zettelmark/zettelmark.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package zettelmark provides a parser for zettelmarkup.
package zettelmark

import (
	"strings"
	"unicode"

	"zettelstore.de/client.fossil/attrs"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/input"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	parser.Register(&parser.Info{
		Name:          meta.SyntaxZmk,








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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2020-present Detlef Stern
//-----------------------------------------------------------------------------

// Package zettelmark provides a parser for zettelmarkup.
package zettelmark

import (
	"strings"
	"unicode"

	"t73f.de/r/zsc/attrs"
	"t73f.de/r/zsc/input"
	"zettelstore.de/z/ast"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/meta"
)

func init() {
	parser.Register(&parser.Info{
		Name:          meta.SyntaxZmk,

Changes to parser/zettelmark/zettelmark_fuzz_test.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

package zettelmark_test

import (
	"testing"

	"zettelstore.de/z/config"
	"zettelstore.de/z/input"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/meta"
)

func FuzzParseBlocks(f *testing.F) {
	f.Fuzz(func(t *testing.T, src []byte) {
		t.Parallel()








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//-----------------------------------------------------------------------------
// Copyright (c) 2022-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.
//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2022-present Detlef Stern
//-----------------------------------------------------------------------------

package zettelmark_test

import (
	"testing"

	"t73f.de/r/zsc/input"
	"zettelstore.de/z/config"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/meta"
)

func FuzzParseBlocks(f *testing.F) {
	f.Fuzz(func(t *testing.T, src []byte) {
		t.Parallel()

Changes to parser/zettelmark/zettelmark_test.go.

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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelstore.
//
// Zettelstore is licensed under the latest version of the EUPL (European Union
// Public License). Please see file LICENSE.txt for your rights and obligations
// under this license.



//-----------------------------------------------------------------------------

// Package zettelmark_test provides some tests for the zettelmarkup parser.
package zettelmark_test

import (
	"fmt"
	"strings"
	"testing"

	"zettelstore.de/client.fossil/attrs"

	"zettelstore.de/z/ast"
	"zettelstore.de/z/config"
	"zettelstore.de/z/input"
	"zettelstore.de/z/parser"
	"zettelstore.de/z/zettel/meta"
)

type TestCase struct{ source, want string }
type TestCases []TestCase









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//-----------------------------------------------------------------------------
// Copyright (c) 2020-present Detlef Stern
//
// This file is part of Zettelst