Zettelstore Client

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Difference From v0.21.0 To trunk

2025-10-07
13:36
Adapt to zsx changes ... (Leaf check-in: 6071c1355a user: stern tags: trunk)
2025-10-06
16:58
Adapt to zsx changes ... (check-in: 78140061ec user: stern tags: trunk)
2025-05-02
14:34
Remove Zid for SxnPrelude ... (check-in: b5c74e61e1 user: stern tags: trunk)
2025-04-17
14:58
Version 0.21.0 ... (check-in: ef331b4f0c user: stern tags: release, trunk, v0.21.0)
09:21
Update changelog ... (check-in: 6f32e74255 user: stern tags: trunk)

Changes to api/const.go.
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const (
	CommandAuthenticated = Command("authenticated")
	CommandRefresh       = Command("refresh")
)

// Supported search operator representations.
const (
	BackwardDirective = "BACKWARD" // Backward-only context
	ContextDirective  = "CONTEXT"  // Context directive
	CostDirective     = "COST"     // Maximum cost of a context operation


	ForwardDirective  = "FORWARD"  // Forward-only context
	FullDirective     = "FULL"     // Include tags in context
	IdentDirective    = "IDENT"    // Use only specified zettel
	ItemsDirective    = "ITEMS"    // Select list elements in a zettel
	MaxDirective      = "MAX"      // Maximum number of context results
	MinDirective      = "MIN"      // Minimum number of context results
	LimitDirective    = "LIMIT"    // Maximum number of zettel
	OffsetDirective   = "OFFSET"   // Offset to start returned zettel list
	OrDirective       = "OR"       // Combine several search expression with an "or"
	OrderDirective    = "ORDER"    // Specify metadata keys for the order of returned list
	PhraseDirective   = "PHRASE"   // Only unlinked zettel with given phrase
	PickDirective     = "PICK"     // Pick some random zettel
	RandomDirective   = "RANDOM"   // Order zettel list randomly
	ReverseDirective  = "REVERSE"  // Reverse the order of a zettel list


	UnlinkedDirective = "UNLINKED" // Search for zettel that contain a phase(s) but do not link

	ActionSeparator = "|" // Separates action list of previous elements of query expression

	KeysAction     = "KEYS"     // Provide metadata key used
	MinAction      = "MIN"      // Return only those values with a minimum amount of zettel
	MaxAction      = "MAX"      // Return only those values with a maximum amount of zettel








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const (
	CommandAuthenticated = Command("authenticated")
	CommandRefresh       = Command("refresh")
)

// Supported search operator representations.
const (
	BackwardDirective = "BACKWARD" // Backward-only context / thread
	ContextDirective  = "CONTEXT"  // Context directive
	CostDirective     = "COST"     // Maximum cost of a context operation
	DirectedDirective = "DIRECTED" // Context/thread collection can have general directions
	FolgeDirective    = "FOLGE"    // Folge thread
	ForwardDirective  = "FORWARD"  // Forward-only context / thread
	FullDirective     = "FULL"     // Include tags in context
	IdentDirective    = "IDENT"    // Use only specified zettel
	ItemsDirective    = "ITEMS"    // Select list elements in a zettel
	MaxDirective      = "MAX"      // Maximum number of context / thread results
	MinDirective      = "MIN"      // Minimum number of context results
	LimitDirective    = "LIMIT"    // Maximum number of zettel
	OffsetDirective   = "OFFSET"   // Offset to start returned zettel list
	OrDirective       = "OR"       // Combine several search expression with an "or"
	OrderDirective    = "ORDER"    // Specify metadata keys for the order of returned list
	PhraseDirective   = "PHRASE"   // Only unlinked zettel with given phrase
	PickDirective     = "PICK"     // Pick some random zettel
	RandomDirective   = "RANDOM"   // Order zettel list randomly
	ReverseDirective  = "REVERSE"  // Reverse the order of a zettel list
	SequelDirective   = "SEQUEL"   // Sequel / branching thread
	ThreadDirective   = "THREAD"   // Both folge and Sequel thread
	UnlinkedDirective = "UNLINKED" // Search for zettel that contain a phase(s) but do not link

	ActionSeparator = "|" // Separates action list of previous elements of query expression

	KeysAction     = "KEYS"     // Provide metadata key used
	MinAction      = "MIN"      // Return only those values with a minimum amount of zettel
	MaxAction      = "MAX"      // Return only those values with a maximum amount of zettel
︙︙
Changes to client/client_test.go.
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	"t73f.de/r/zsc/api"
	"t73f.de/r/zsc/client"
	"t73f.de/r/zsc/domain/id"
)

func TestZettelList(t *testing.T) {
	c := getClient()
	_, err := c.QueryZettel(context.Background(), "")
	if err != nil {
		t.Error(err)
		return
	}
}

func TestGetProtectedZettel(t *testing.T) {
	c := getClient()
	_, err := c.GetZettel(context.Background(), id.ZidStartupConfiguration, api.PartZettel)
	if err != nil {
		if cErr, ok := err.(*client.Error); ok && cErr.StatusCode == http.StatusForbidden {
			return
		} else {
			t.Error(err)
		}
		return
	}
}

func TestGetSzZettel(t *testing.T) {
	c := getClient()
	value, err := c.GetEvaluatedSz(context.Background(), id.ZidDefaultHome, api.PartContent)
	if err != nil {








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	"t73f.de/r/zsc/api"
	"t73f.de/r/zsc/client"
	"t73f.de/r/zsc/domain/id"
)

func TestZettelList(t *testing.T) {
	c := getClient()
	if _, err := c.QueryZettel(context.Background(), ""); err != nil {

		t.Error(err)

	}
}

func TestGetProtectedZettel(t *testing.T) {
	c := getClient()
	if _, err := c.GetZettel(context.Background(), id.ZidStartupConfiguration, api.PartZettel); err != nil {

		if cErr, ok := err.(*client.Error); !ok || cErr.StatusCode != http.StatusForbidden {


			t.Error(err)
		}

	}
}

func TestGetSzZettel(t *testing.T) {
	c := getClient()
	value, err := c.GetEvaluatedSz(context.Background(), id.ZidDefaultHome, api.PartContent)
	if err != nil {
︙︙
Changes to domain/id/id.go.
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	// WebUI JS zettel are in the range 30000..39999

	// WebUI image zettel are in the range 40000..49999
	ZidEmoji = Zid(40001)

	// Other sxn code zettel are in the range 50000..59999
	ZidSxnPrelude = Zid(59900)

	// Predefined Zettelmarkup zettel are in the range 60000..69999
	ZidRoleZettelZettel        = Zid(60010)
	ZidRoleConfigurationZettel = Zid(60020)
	ZidRoleRoleZettel          = Zid(60030)
	ZidRoleTagZettel           = Zid(60040)









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	// WebUI JS zettel are in the range 30000..39999

	// WebUI image zettel are in the range 40000..49999
	ZidEmoji = Zid(40001)

	// Other sxn code zettel are in the range 50000..59999


	// Predefined Zettelmarkup zettel are in the range 60000..69999
	ZidRoleZettelZettel        = Zid(60010)
	ZidRoleConfigurationZettel = Zid(60020)
	ZidRoleRoleZettel          = Zid(60030)
	ZidRoleTagZettel           = Zid(60040)
︙︙
Changes to domain/id/idset/idset.go.
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// IntersectOrSet removes all zettel identifier that are not in the other set.
// Both sets can be modified by this method. One of them is the set returned.
// It contains the intersection of both, if s is not nil.
//
// If s == nil, then the other set is always returned.
func (s *Set) IntersectOrSet(other *Set) *Set {
	if s == nil || other == nil {




		return other.Clone()
	}
	topos, spos, opos := 0, 0, 0
	for spos < len(s.seq) && opos < len(other.seq) {
		sz, oz := s.seq[spos], other.seq[opos]
		if sz < oz {
			spos++
			continue








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// IntersectOrSet removes all zettel identifier that are not in the other set.
// Both sets can be modified by this method. One of them is the set returned.
// It contains the intersection of both, if s is not nil.
//
// If s == nil, then the other set is always returned.
func (s *Set) IntersectOrSet(other *Set) *Set {
	if s == nil {
		return other // no other.Clone(), since other != nil, i.e. "not found"
	}
	if other == nil {
		s.seq = s.seq[:0]
		return s
	}
	topos, spos, opos := 0, 0, 0
	for spos < len(s.seq) && opos < len(other.seq) {
		sz, oz := s.seq[spos], other.seq[opos]
		if sz < oz {
			spos++
			continue
︙︙
Changes to domain/meta/meta.go.
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	KeyFolge        = "folge"
	KeyFolgeRole    = "folge-role"
	KeyForward      = "forward"
	KeyLang         = "lang"
	KeyLicense      = "license"
	KeyModified     = "modified"
	KeyPrecursor    = "precursor"
	KeyPredecessor  = "predecessor"
	KeyPrequel      = "prequel"
	KeyPublished    = "published"
	KeyQuery        = "query"
	KeyReadOnly     = "read-only"
	KeySequel       = "sequel"
	KeySubordinates = "subordinates"
	KeySuccessors   = "successors"
	KeySummary      = "summary"
	KeySuperior     = "superior"
	KeyURL          = "url"
	KeyUselessFiles = "useless-files"
	KeyUserID       = "user-id"
	KeyUserRole     = "user-role"
	KeyVisibility   = "visibility"
)

// Supported keys.
func init() {
	registerKey(KeyID, TypeID, usageComputed, "")
	registerKey(KeyTitle, TypeEmpty, usageUser, "")
	registerKey(KeyRole, TypeWord, usageUser, "")
	registerKey(KeyTags, TypeTagSet, usageUser, "")
	registerKey(KeySyntax, TypeWord, usageUser, "")

	// Properties that are inverse keys
	registerKey(KeyFolge, TypeIDSet, usageProperty, "")
	registerKey(KeySequel, TypeIDSet, usageProperty, "")
	registerKey(KeySuccessors, TypeIDSet, usageProperty, "")
	registerKey(KeySubordinates, TypeIDSet, usageProperty, "")

	// Non-inverse keys
	registerKey(KeyAuthor, TypeString, usageUser, "")
	registerKey(KeyBack, TypeIDSet, usageProperty, "")
	registerKey(KeyBackward, TypeIDSet, usageProperty, "")
	registerKey(KeyBoxNumber, TypeNumber, usageProperty, "")
	registerKey(KeyCopyright, TypeString, usageUser, "")
	registerKey(KeyCreated, TypeTimestamp, usageComputed, "")
	registerKey(KeyCredential, TypeCredential, usageUser, "")
	registerKey(KeyDead, TypeIDSet, usageProperty, "")
	registerKey(KeyExpire, TypeTimestamp, usageUser, "")
	registerKey(KeyFolgeRole, TypeWord, usageUser, "")
	registerKey(KeyForward, TypeIDSet, usageProperty, "")
	registerKey(KeyLang, TypeWord, usageUser, "")
	registerKey(KeyLicense, TypeEmpty, usageUser, "")
	registerKey(KeyModified, TypeTimestamp, usageComputed, "")
	registerKey(KeyPrecursor, TypeIDSet, usageUser, KeyFolge)
	registerKey(KeyPredecessor, TypeID, usageUser, KeySuccessors)
	registerKey(KeyPrequel, TypeIDSet, usageUser, KeySequel)
	registerKey(KeyPublished, TypeTimestamp, usageProperty, "")
	registerKey(KeyQuery, TypeEmpty, usageUser, "")
	registerKey(KeyReadOnly, TypeWord, usageUser, "")
	registerKey(KeySummary, TypeString, usageUser, "")
	registerKey(KeySuperior, TypeIDSet, usageUser, KeySubordinates)
	registerKey(KeyURL, TypeURL, usageUser, "")








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	KeyFolge        = "folge"
	KeyFolgeRole    = "folge-role"
	KeyForward      = "forward"
	KeyLang         = "lang"
	KeyLicense      = "license"
	KeyModified     = "modified"
	KeyPrecursor    = "precursor"

	KeyPrequel      = "prequel"
	KeyPublished    = "published"
	KeyQuery        = "query"
	KeyReadOnly     = "read-only"
	KeySequel       = "sequel"
	KeySubordinates = "subordinates"

	KeySummary      = "summary"
	KeySuperior     = "superior"
	KeyURL          = "url"
	KeyUselessFiles = "useless-files"
	KeyUserID       = "user-id"
	KeyUserRole     = "user-role"
	KeyVisibility   = "visibility"
)

// Supported keys.
func init() {
	registerKey(KeyID, TypeID, usageComputed, "")
	registerKey(KeyTitle, TypeEmpty, usageUser, "")
	registerKey(KeyRole, TypeWord, usageUser, "")
	registerKey(KeyTags, TypeTagSet, usageUser, "")
	registerKey(KeySyntax, TypeWord, usageUser, "")

	// Properties that are inverse keys
	registerKey(KeyFolge, TypeIDSet, usageProperty, "")
	registerKey(KeySequel, TypeIDSet, usageProperty, "")

	registerKey(KeySubordinates, TypeIDSet, usageProperty, "")

	// Non-inverse keys
	registerKey(KeyAuthor, TypeString, usageUser, "")
	registerKey(KeyBack, TypeIDSet, usageProperty, "")
	registerKey(KeyBackward, TypeIDSet, usageProperty, "")
	registerKey(KeyBoxNumber, TypeNumber, usageProperty, "")
	registerKey(KeyCopyright, TypeString, usageUser, "")
	registerKey(KeyCreated, TypeTimestamp, usageComputed, "")
	registerKey(KeyCredential, TypeCredential, usageUser, "")
	registerKey(KeyDead, TypeIDSet, usageProperty, "")
	registerKey(KeyExpire, TypeTimestamp, usageUser, "")
	registerKey(KeyFolgeRole, TypeWord, usageUser, "")
	registerKey(KeyForward, TypeIDSet, usageProperty, "")
	registerKey(KeyLang, TypeWord, usageUser, "")
	registerKey(KeyLicense, TypeEmpty, usageUser, "")
	registerKey(KeyModified, TypeTimestamp, usageComputed, "")
	registerKey(KeyPrecursor, TypeIDSet, usageUser, KeyFolge)

	registerKey(KeyPrequel, TypeIDSet, usageUser, KeySequel)
	registerKey(KeyPublished, TypeTimestamp, usageProperty, "")
	registerKey(KeyQuery, TypeEmpty, usageUser, "")
	registerKey(KeyReadOnly, TypeWord, usageUser, "")
	registerKey(KeySummary, TypeString, usageUser, "")
	registerKey(KeySuperior, TypeIDSet, usageUser, KeySubordinates)
	registerKey(KeyURL, TypeURL, usageUser, "")
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	}
}

// SetNonEmpty stores the given value under the given key, if the value is non-empty.
// An empty value will delete the previous association.
func (m *Meta) SetNonEmpty(key string, value Value) {
	if value == "" {

		delete(m.pairs, key) // TODO: key != KeyID

	} else {
		m.Set(key, value.TrimSpace())
	}
}











// Get retrieves the string value of a given key. The bool value signals,
// whether there was a value stored or not.
func (m *Meta) Get(key string) (Value, bool) {
	if m == nil {

		return "", false
	}
	if key == KeyID {
		return Value(m.Zid.String()), true
	}
	value, ok := m.pairs[key]

	return value, ok
}

// GetDefault retrieves the string value of the given key. If no value was
// stored, the given default value is returned.
func (m *Meta) GetDefault(key string, def Value) Value {
	if value, found := m.Get(key); found {
		return value








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	}
}

// SetNonEmpty stores the given value under the given key, if the value is non-empty.
// An empty value will delete the previous association.
func (m *Meta) SetNonEmpty(key string, value Value) {
	if value == "" {
		if key != KeyID {
			delete(m.pairs, key)
		}
	} else {
		m.Set(key, value.TrimSpace())
	}
}

// Has returns true, if the given key is used in the metadata.
func (m *Meta) Has(key string) bool {
	if m != nil {
		if _, found := m.pairs[key]; found || key == KeyID {
			return true
		}
	}
	return false
}

// Get retrieves the string value of a given key. The bool value signals,
// whether there was a value stored or not.
func (m *Meta) Get(key string) (Value, bool) {
	if m != nil {
		if value, found := m.pairs[key]; found {
			return value, true
		}
		if key == KeyID {
			return Value(m.Zid.String()), true
		}

	}
	return "", false
}

// GetDefault retrieves the string value of the given key. If no value was
// stored, the given default value is returned.
func (m *Meta) GetDefault(key string, def Value) Value {
	if value, found := m.Get(key); found {
		return value
︙︙
Changes to domain/meta/type.go.
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var (
	cachedTypedKeys = make(map[string]*DescriptionType)
	mxTypedKey      sync.RWMutex
	suffixTypes     = map[string]*DescriptionType{
		"-date":       TypeTimestamp,
		"-number":     TypeNumber,


		SuffixKeyRole: TypeWord,
		"-time":       TypeTimestamp,
		SuffixKeyURL:  TypeURL,
		"-zettel":     TypeID,
		"-zid":        TypeID,
		"-zids":       TypeIDSet,
	}








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var (
	cachedTypedKeys = make(map[string]*DescriptionType)
	mxTypedKey      sync.RWMutex
	suffixTypes     = map[string]*DescriptionType{
		"-date":       TypeTimestamp,
		"-number":     TypeNumber,
		"-ref":        TypeID,
		"-refs":       TypeIDSet,
		SuffixKeyRole: TypeWord,
		"-time":       TypeTimestamp,
		SuffixKeyURL:  TypeURL,
		"-zettel":     TypeID,
		"-zid":        TypeID,
		"-zids":       TypeIDSet,
	}
︙︙
Changes to domain/meta/values.go.
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	"iter"
	"slices"
	"strings"
	"time"

	zeroiter "t73f.de/r/zero/iter"
	"t73f.de/r/zsc/domain/id"

	"t73f.de/r/zsx/input"
)

// Value ist a single metadata value.
type Value string

// AsBool returns the value interpreted as a bool.








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	"iter"
	"slices"
	"strings"
	"time"

	zeroiter "t73f.de/r/zero/iter"
	"t73f.de/r/zsc/domain/id"
	"t73f.de/r/zsx"
	"t73f.de/r/zsx/input"
)

// Value ist a single metadata value.
type Value string

// AsBool returns the value interpreted as a bool.
︙︙
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	ValueSyntaxJPEG        = "jpeg"          // Syntax: JPEG image
	ValueSyntaxJPG         = "jpg"           // Syntax: PEG image
	ValueSyntaxMarkdown    = "markdown"      // Syntax: Markdown / CommonMark
	ValueSyntaxMD          = "md"            // Syntax: Markdown / CommonMark
	ValueSyntaxNone        = "none"          // Syntax: no syntax / content, just metadata
	ValueSyntaxPlain       = "plain"         // Syntax: plain text
	ValueSyntaxPNG         = "png"           // Syntax: PNG image
	ValueSyntaxSVG         = "svg"           // Syntax: SVG
	ValueSyntaxSxn         = "sxn"           // Syntax: S-Expression
	ValueSyntaxText        = "text"          // Syntax: plain text
	ValueSyntaxTxt         = "txt"           // Syntax: plain text
	ValueSyntaxWebp        = "webp"          // Syntax: WEBP image
	ValueSyntaxZmk         = "zmk"           // Syntax: Zettelmarkup
	ValueUserRoleCreator   = "creator"
	ValueUserRoleOwner     = "owner"








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	ValueSyntaxJPEG        = "jpeg"          // Syntax: JPEG image
	ValueSyntaxJPG         = "jpg"           // Syntax: PEG image
	ValueSyntaxMarkdown    = "markdown"      // Syntax: Markdown / CommonMark
	ValueSyntaxMD          = "md"            // Syntax: Markdown / CommonMark
	ValueSyntaxNone        = "none"          // Syntax: no syntax / content, just metadata
	ValueSyntaxPlain       = "plain"         // Syntax: plain text
	ValueSyntaxPNG         = "png"           // Syntax: PNG image
	ValueSyntaxSVG         = zsx.SyntaxSVG   // Syntax: SVG
	ValueSyntaxSxn         = "sxn"           // Syntax: S-Expression
	ValueSyntaxText        = "text"          // Syntax: plain text
	ValueSyntaxTxt         = "txt"           // Syntax: plain text
	ValueSyntaxWebp        = "webp"          // Syntax: WEBP image
	ValueSyntaxZmk         = "zmk"           // Syntax: Zettelmarkup
	ValueUserRoleCreator   = "creator"
	ValueUserRoleOwner     = "owner"
︙︙
Changes to go.mod. 
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module t73f.de/r/zsc

go 1.24

require (
	t73f.de/r/sx v0.0.0-20250415161954-42ed9c4d6abc
	t73f.de/r/sxwebs v0.0.0-20250415162443-110f49c5a1ae
	t73f.de/r/webs v0.0.0-20250311182734-f263a38b32d5
	t73f.de/r/zero v0.0.0-20250226205915-c4194684acb7
	t73f.de/r/zsx v0.0.0-20250415162540-fc13b286b6ce
)



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module t73f.de/r/zsc

go 1.25

require (
	t73f.de/r/sx v0.0.0-20250902163016-7a7a55d68dd6
	t73f.de/r/sxwebs v0.0.0-20250902155414-673110c9fb48
	t73f.de/r/webs v0.0.0-20250916082100-37e0307e3368
	t73f.de/r/zero v0.0.0-20250904163008-d96be3da2aef
	t73f.de/r/zsx v0.0.0-20251007133258-f1844bbf951e
)
Changes to go.sum. 
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t73f.de/r/sx v0.0.0-20250415161954-42ed9c4d6abc h1:tlsP+47Rf8i9Zv1TqRnwfbQx3nN/F/92RkT6iCA6SVA=
t73f.de/r/sx v0.0.0-20250415161954-42ed9c4d6abc/go.mod h1:hzg05uSCMk3D/DWaL0pdlowfL2aWQeGIfD1S04vV+Xg=
t73f.de/r/sxwebs v0.0.0-20250415162443-110f49c5a1ae h1:K6nxN/bb0BCSiDffwNPGTF2uf5WcTdxcQXzByXNuJ7M=
t73f.de/r/sxwebs v0.0.0-20250415162443-110f49c5a1ae/go.mod h1:0LQ9T1svSg9ADY/6vQLKNUu6LqpPi8FGr7fd2qDT5H8=
t73f.de/r/webs v0.0.0-20250311182734-f263a38b32d5 h1:nnKfs/2i9n3S5VjbSj98odcwZKGcL96qPSIUATT/2P8=
t73f.de/r/webs v0.0.0-20250311182734-f263a38b32d5/go.mod h1:zk92hSKB4iWyT290+163seNzu350TA9XLATC9kOldqo=
t73f.de/r/zero v0.0.0-20250226205915-c4194684acb7 h1:OuzHSfniY8UzLmo5zp1w23Kd9h7x9CSXP2jQ+kppeqU=
t73f.de/r/zero v0.0.0-20250226205915-c4194684acb7/go.mod h1:T1vFcHoymUQcr7+vENBkS1yryZRZ3YB8uRtnMy8yRBA=
t73f.de/r/zsx v0.0.0-20250415162540-fc13b286b6ce h1:R9rtg4ecx4YYixsMmsh+wdcqLdY9GxoC5HZ9mMS33to=
t73f.de/r/zsx v0.0.0-20250415162540-fc13b286b6ce/go.mod h1:tXOlmsQBoY4mY7Plu0LCCMZNSJZJbng98fFarZXAWvM=

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t73f.de/r/sx v0.0.0-20250902163016-7a7a55d68dd6 h1:vOyPEfxXze8QjcfxJK5GHb68PzDw2EomRwdUyDLnBVw=
t73f.de/r/sx v0.0.0-20250902163016-7a7a55d68dd6/go.mod h1:D4NKzI2FRtNW0zCcvf+yCEplfoSnZAXiax9otvasu0w=
t73f.de/r/sxwebs v0.0.0-20250902155414-673110c9fb48 h1:LCZQsACNivE0NkA6B296yTdHIN1wl88iAdx0J5pHzlA=
t73f.de/r/sxwebs v0.0.0-20250902155414-673110c9fb48/go.mod h1:yOrGohF5eS9fcVR6Posxfv7PVDldqxEC1ZucTddhBPI=
t73f.de/r/webs v0.0.0-20250916082100-37e0307e3368 h1:ul8l/OIWIlMDyt1Zc8N9dcTfXiT+p6o+6QUZbUp1Wqc=
t73f.de/r/webs v0.0.0-20250916082100-37e0307e3368/go.mod h1:G3vn6fCTvYWwQby5cVNmXzHlOGhgBDfbbo/9OgIxy0g=
t73f.de/r/zero v0.0.0-20250904163008-d96be3da2aef h1:ShqDx4DjirNThBlObVbmUqUwDuQ7qndxdFxBHs5Ui2Y=
t73f.de/r/zero v0.0.0-20250904163008-d96be3da2aef/go.mod h1:cNaE2o9BWPFqLkmDuYaWrMJQS7GOo+wwmB9y8VfAF6c=
t73f.de/r/zsx v0.0.0-20251007133258-f1844bbf951e h1:k0rbUZtWYeqSy8qrY3yOd8oyiT0hl8ekhpmVkx6AAfg=
t73f.de/r/zsx v0.0.0-20251007133258-f1844bbf951e/go.mod h1:/JvaST9OR796HoQv23GBfRlbZAtn+qgEuYOnesf1qyo=
Changes to sexp/sexp.go.
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import (
	"errors"
	"fmt"
	"sort"

	"t73f.de/r/sx"

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

// EncodeZettel transforms zettel data into a sx object.
func EncodeZettel(zettel api.ZettelData) sx.Object {
	return sx.MakeList(
		sx.MakeSymbol("zettel"),








>








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import (
	"errors"
	"fmt"
	"sort"

	"t73f.de/r/sx"
	"t73f.de/r/sx/sxbuiltins"
	"t73f.de/r/zsc/api"
)

// EncodeZettel transforms zettel data into a sx object.
func EncodeZettel(zettel api.ZettelData) sx.Object {
	return sx.MakeList(
		sx.MakeSymbol("zettel"),
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		Content:  contentVals[1].(sx.String).GetValue(),
	}, nil
}

// EncodeMetaRights translates metadata/rights into a sx object.
func EncodeMetaRights(mr api.MetaRights) *sx.Pair {
	return sx.MakeList(
		sx.SymbolList,
		meta2sz(mr.Meta),
		sx.MakeList(sx.MakeSymbol("rights"), sx.Int64(int64(mr.Rights))),
	)
}

func meta2sz(m api.ZettelMeta) sx.Object {
	var result sx.ListBuilder








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		Content:  contentVals[1].(sx.String).GetValue(),
	}, nil
}

// EncodeMetaRights translates metadata/rights into a sx object.
func EncodeMetaRights(mr api.MetaRights) *sx.Pair {
	return sx.MakeList(
		sx.MakeSymbol(sxbuiltins.List.Name),
		meta2sz(mr.Meta),
		sx.MakeList(sx.MakeSymbol("rights"), sx.Int64(int64(mr.Rights))),
	)
}

func meta2sz(m api.ZettelMeta) sx.Object {
	var result sx.ListBuilder
︙︙
Changes to shtml/const.go.
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//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2024-present Detlef Stern
//-----------------------------------------------------------------------------

package shtml

import "t73f.de/r/sx"

// Symbols for HTML header tags
var (
	SymBody   = sx.MakeSymbol("body")
	SymHead   = sx.MakeSymbol("head")
	SymHTML   = sx.MakeSymbol("html")
	SymMeta   = sx.MakeSymbol("meta")
	SymScript = sx.MakeSymbol("script")
	SymTitle  = sx.MakeSymbol("title")
)

// Symbols for HTML body tags
var (
	SymA          = sx.MakeSymbol("a")
	SymASIDE      = sx.MakeSymbol("aside")
	symBLOCKQUOTE = sx.MakeSymbol("blockquote")
	symBR         = sx.MakeSymbol("br")
	symCITE       = sx.MakeSymbol("cite")
	symCODE       = sx.MakeSymbol("code")
	symDD         = sx.MakeSymbol("dd")
	symDEL        = sx.MakeSymbol("del")
	SymDIV        = sx.MakeSymbol("div")
	symDL         = sx.MakeSymbol("dl")
	symDT         = sx.MakeSymbol("dt")
	symEM         = sx.MakeSymbol("em")
	SymEMBED      = sx.MakeSymbol("embed")
	SymFIGURE     = sx.MakeSymbol("figure")
	SymH1         = sx.MakeSymbol("h1")
	SymH2         = sx.MakeSymbol("h2")
	SymHR         = sx.MakeSymbol("hr")
	SymIMG        = sx.MakeSymbol("img")
	symINS        = sx.MakeSymbol("ins")
	symKBD        = sx.MakeSymbol("kbd")
	SymLI         = sx.MakeSymbol("li")
	symMARK       = sx.MakeSymbol("mark")
	SymOL         = sx.MakeSymbol("ol")
	SymP          = sx.MakeSymbol("p")
	symPRE        = sx.MakeSymbol("pre")
	symSAMP       = sx.MakeSymbol("samp")
	SymSPAN       = sx.MakeSymbol("span")
	SymSTRONG     = sx.MakeSymbol("strong")
	symSUB        = sx.MakeSymbol("sub")
	symSUP        = sx.MakeSymbol("sup")
	symTABLE      = sx.MakeSymbol("table")
	symTBODY      = sx.MakeSymbol("tbody")
	symTHEAD      = sx.MakeSymbol("thead")
	symTD         = sx.MakeSymbol("td")
	symTH         = sx.MakeSymbol("th")
	symTR         = sx.MakeSymbol("tr")
	SymUL         = sx.MakeSymbol("ul")
)

// Symbols for HTML attribute keys
var (
	SymAttrClass  = sx.MakeSymbol("class")
	SymAttrHref   = sx.MakeSymbol("href")
	SymAttrID     = sx.MakeSymbol("id")
	SymAttrLang   = sx.MakeSymbol("lang")
	SymAttrOpen   = sx.MakeSymbol("open")
	SymAttrRel    = sx.MakeSymbol("rel")
	SymAttrRole   = sx.MakeSymbol("role")
	SymAttrSrc    = sx.MakeSymbol("src")
	SymAttrTarget = sx.MakeSymbol("target")
	SymAttrTitle  = sx.MakeSymbol("title")
	SymAttrType   = sx.MakeSymbol("type")
	SymAttrValue  = sx.MakeSymbol("value")
)








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//
// SPDX-License-Identifier: EUPL-1.2
// SPDX-FileCopyrightText: 2024-present Detlef Stern
//-----------------------------------------------------------------------------

package shtml

import "t73f.de/r/sxwebs/sxhtml"

// Symbols for HTML header tags
var (
	SymBody   = sxhtml.MakeSymbol("body")
	SymHead   = sxhtml.MakeSymbol("head")
	SymHTML   = sxhtml.MakeSymbol("html")
	SymMeta   = sxhtml.MakeSymbol("meta")
	SymScript = sxhtml.MakeSymbol("script")
	SymTitle  = sxhtml.MakeSymbol("title")
)

// Symbols for HTML body tags
var (
	SymA          = sxhtml.MakeSymbol("a")
	SymASIDE      = sxhtml.MakeSymbol("aside")
	symBLOCKQUOTE = sxhtml.MakeSymbol("blockquote")
	symBR         = sxhtml.MakeSymbol("br")
	symCITE       = sxhtml.MakeSymbol("cite")
	symCODE       = sxhtml.MakeSymbol("code")
	symDD         = sxhtml.MakeSymbol("dd")
	symDEL        = sxhtml.MakeSymbol("del")
	SymDIV        = sxhtml.MakeSymbol("div")
	symDL         = sxhtml.MakeSymbol("dl")
	symDT         = sxhtml.MakeSymbol("dt")
	symEM         = sxhtml.MakeSymbol("em")
	SymEMBED      = sxhtml.MakeSymbol("embed")
	SymFIGURE     = sxhtml.MakeSymbol("figure")
	SymH1         = sxhtml.MakeSymbol("h1")
	SymH2         = sxhtml.MakeSymbol("h2")
	SymHR         = sxhtml.MakeSymbol("hr")
	SymIMG        = sxhtml.MakeSymbol("img")
	symINS        = sxhtml.MakeSymbol("ins")
	symKBD        = sxhtml.MakeSymbol("kbd")
	SymLI         = sxhtml.MakeSymbol("li")
	symMARK       = sxhtml.MakeSymbol("mark")
	SymOL         = sxhtml.MakeSymbol("ol")
	SymP          = sxhtml.MakeSymbol("p")
	symPRE        = sxhtml.MakeSymbol("pre")
	symSAMP       = sxhtml.MakeSymbol("samp")
	SymSPAN       = sxhtml.MakeSymbol("span")
	SymSTRONG     = sxhtml.MakeSymbol("strong")
	symSUB        = sxhtml.MakeSymbol("sub")
	symSUP        = sxhtml.MakeSymbol("sup")
	symTABLE      = sxhtml.MakeSymbol("table")
	symTBODY      = sxhtml.MakeSymbol("tbody")
	symTHEAD      = sxhtml.MakeSymbol("thead")
	symTD         = sxhtml.MakeSymbol("td")
	symTH         = sxhtml.MakeSymbol("th")
	symTR         = sxhtml.MakeSymbol("tr")
	SymUL         = sxhtml.MakeSymbol("ul")
)

// Symbols for HTML attribute keys
var (
	SymAttrClass  = sxhtml.MakeSymbol("class")
	SymAttrHref   = sxhtml.MakeSymbol("href")
	SymAttrID     = sxhtml.MakeSymbol("id")
	SymAttrLang   = sxhtml.MakeSymbol("lang")
	SymAttrOpen   = sxhtml.MakeSymbol("open")
	SymAttrRel    = sxhtml.MakeSymbol("rel")
	SymAttrRole   = sxhtml.MakeSymbol("role")
	SymAttrSrc    = sxhtml.MakeSymbol("src")
	SymAttrTarget = sxhtml.MakeSymbol("target")
	SymAttrTitle  = sxhtml.MakeSymbol("title")
	SymAttrType   = sxhtml.MakeSymbol("type")
	SymAttrValue  = sxhtml.MakeSymbol("value")
)
Changes to shtml/shtml.go.
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		return nil
	}
	plist := sx.Nil()
	keys := a.Keys()
	for i := len(keys) - 1; i >= 0; i-- {
		key := keys[i]
		if key != zsx.DefaultAttribute && isValidName(key) {
			plist = plist.Cons(sx.Cons(sx.MakeSymbol(key), sx.MakeString(a[key])))
		}
	}
	if plist == nil {
		return nil
	}
	return plist.Cons(sxhtml.SymAttr)
}

// Evaluate a metadata s-expression into a list of HTML s-expressions.
func (ev *Evaluator) Evaluate(lst *sx.Pair, env *Environment) (*sx.Pair, error) {
	result := ev.Eval(lst, env)
	if err := env.err; err != nil {
		return nil, err








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		return nil
	}
	plist := sx.Nil()
	keys := a.Keys()
	for i := len(keys) - 1; i >= 0; i-- {
		key := keys[i]
		if key != zsx.DefaultAttribute && isValidName(key) {
			plist = plist.Cons(sx.Cons(sxhtml.MakeSymbol(key), sx.MakeString(a[key])))
		}
	}

	return plist


}

// Evaluate a metadata s-expression into a list of HTML s-expressions.
func (ev *Evaluator) Evaluate(lst *sx.Pair, env *Environment) (*sx.Pair, error) {
	result := ev.Eval(lst, env)
	if err := env.err; err != nil {
		return nil, err
︙︙
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	if env.err != nil || len(env.endnotes) == 0 {
		return nil
	}

	var result sx.ListBuilder
	result.AddN(
		SymOL,
		sx.Nil().Cons(sx.Cons(SymAttrClass, sx.MakeString("zs-endnotes"))).Cons(sxhtml.SymAttr),
	)
	for i, fni := range env.endnotes {
		noteNum := strconv.Itoa(i + 1)
		attrs := fni.attrs.Cons(sx.Cons(SymAttrClass, sx.MakeString("zs-endnote"))).
			Cons(sx.Cons(SymAttrValue, sx.MakeString(noteNum))).
			Cons(sx.Cons(SymAttrID, sx.MakeString("fn:"+fni.noteID))).
			Cons(sx.Cons(SymAttrRole, sx.MakeString("doc-endnote"))).
			Cons(sxhtml.SymAttr)

		backref := sx.Nil().Cons(sx.MakeString("\u21a9\ufe0e")).
			Cons(sx.Nil().
				Cons(sx.Cons(SymAttrClass, sx.MakeString("zs-endnote-backref"))).
				Cons(sx.Cons(SymAttrHref, sx.MakeString("#fnref:"+fni.noteID))).
				Cons(sx.Cons(SymAttrRole, sx.MakeString("doc-backlink"))).
				Cons(sxhtml.SymAttr)).
			Cons(SymA)

		var li sx.ListBuilder
		li.AddN(SymLI, attrs)
		li.ExtendBang(fni.noteHx)
		li.AddN(sx.MakeString(" "), backref)
		result.Add(li.List())








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	if env.err != nil || len(env.endnotes) == 0 {
		return nil
	}

	var result sx.ListBuilder
	result.AddN(
		SymOL,
		sx.Nil().Cons(sx.Cons(SymAttrClass, sx.MakeString("zs-endnotes"))),
	)
	for i, fni := range env.endnotes {
		noteNum := strconv.Itoa(i + 1)
		attrs := fni.attrs.Cons(sx.Cons(SymAttrClass, sx.MakeString("zs-endnote"))).
			Cons(sx.Cons(SymAttrValue, sx.MakeString(noteNum))).
			Cons(sx.Cons(SymAttrID, sx.MakeString("fn:"+fni.noteID))).
			Cons(sx.Cons(SymAttrRole, sx.MakeString("doc-endnote")))


		backref := sx.Nil().Cons(sx.MakeString("\u21a9\ufe0e")).
			Cons(sx.Nil().
				Cons(sx.Cons(SymAttrClass, sx.MakeString("zs-endnote-backref"))).
				Cons(sx.Cons(SymAttrHref, sx.MakeString("#fnref:"+fni.noteID))).
				Cons(sx.Cons(SymAttrRole, sx.MakeString("doc-backlink")))).

			Cons(SymA)

		var li sx.ListBuilder
		li.AddN(SymLI, attrs)
		li.ExtendBang(fni.noteHx)
		li.AddN(sx.MakeString(" "), backref)
		result.Add(li.List())
︙︙
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	}
	ev.fns[symVal] = fn
}

func (ev *Evaluator) bindMetadata() {
	ev.bind(sz.SymMeta, 0, ev.evalList)
	evalMetaString := func(args sx.Vector, env *Environment) sx.Object {
		a := make(zsx.Attributes, 2).
			Set("name", getSymbol(args[0], env).GetValue()).
			Set("content", getString(args[1], env).GetValue())
		return ev.EvaluateMeta(a)
	}
	ev.bind(sz.SymTypeCredential, 2, evalMetaString)
	ev.bind(sz.SymTypeEmpty, 2, evalMetaString)
	ev.bind(sz.SymTypeID, 2, evalMetaString)
	ev.bind(sz.SymTypeNumber, 2, evalMetaString)
	ev.bind(sz.SymTypeString, 2, evalMetaString)
	ev.bind(sz.SymTypeTimestamp, 2, evalMetaString)
	ev.bind(sz.SymTypeURL, 2, evalMetaString)
	ev.bind(sz.SymTypeWord, 2, evalMetaString)

	evalMetaSet := func(args sx.Vector, env *Environment) sx.Object {
		var sb strings.Builder
		for obj := range getList(args[1], env).Values() {
			sb.WriteByte(' ')
			sb.WriteString(getString(obj, env).GetValue())
		}
		s := sb.String()
		if len(s) > 0 {
			s = s[1:]
		}
		a := make(zsx.Attributes, 2).
			Set("name", getSymbol(args[0], env).GetValue()).
			Set("content", s)
		return ev.EvaluateMeta(a)
	}
	ev.bind(sz.SymTypeIDSet, 2, evalMetaSet)
	ev.bind(sz.SymTypeTagSet, 2, evalMetaSet)
}














// EvaluateMeta returns HTML meta object for an attribute.
func (ev *Evaluator) EvaluateMeta(a zsx.Attributes) *sx.Pair {
	return sx.Nil().Cons(EvaluateAttributes(a)).Cons(SymMeta)
}

func (ev *Evaluator) bindBlocks() {
	ev.bind(zsx.SymBlock, 0, ev.evalList)
	ev.bind(zsx.SymPara, 0, func(args sx.Vector, env *Environment) sx.Object {
		return ev.evalSlice(args, env).Cons(SymP)
	})
	ev.bind(zsx.SymHeading, 5, func(args sx.Vector, env *Environment) sx.Object {
		nLevel := getInt64(args[0], env)
		if nLevel <= 0 {
			env.err = fmt.Errorf("%v is a negative heading level", nLevel)
			return sx.Nil()
		}





		level := strconv.FormatInt(nLevel+ev.headingOffset, 10)
		headingSymbol := sx.MakeSymbol("h" + level)

		a := GetAttributes(args[1], env)
		env.pushAttributes(a)
		defer env.popAttributes()
		if fragment := getString(args[3], env).GetValue(); fragment != "" {
			a = a.Set("id", ev.unique+fragment)
		}








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	}
	ev.fns[symVal] = fn
}

func (ev *Evaluator) bindMetadata() {
	ev.bind(sz.SymMeta, 0, ev.evalList)
	evalMetaString := func(args sx.Vector, env *Environment) sx.Object {


		return ev.evalMetaString(args[0], getString(args[1], env).GetValue(), env)

	}
	ev.bind(sz.SymTypeCredential, 2, evalMetaString)
	ev.bind(sz.SymTypeEmpty, 2, evalMetaString)
	ev.bind(sz.SymTypeID, 2, evalMetaString)
	ev.bind(sz.SymTypeNumber, 2, evalMetaString)
	ev.bind(sz.SymTypeString, 2, evalMetaString)
	ev.bind(sz.SymTypeTimestamp, 2, evalMetaString)
	ev.bind(sz.SymTypeURL, 2, evalMetaString)
	ev.bind(sz.SymTypeWord, 2, evalMetaString)

	evalMetaSet := func(args sx.Vector, env *Environment) sx.Object {
		var sb strings.Builder
		for obj := range getList(args[1], env).Values() {
			sb.WriteByte(' ')
			sb.WriteString(getString(obj, env).GetValue())
		}
		s := sb.String()
		if len(s) > 0 {
			s = s[1:]
		}



		return ev.evalMetaString(args[0], s, env)
	}
	ev.bind(sz.SymTypeIDSet, 2, evalMetaSet)
	ev.bind(sz.SymTypeTagSet, 2, evalMetaSet)
}

func (ev *Evaluator) evalMetaString(nameObj sx.Object, content string, env *Environment) sx.Object {
	if env.err == nil {
		if nameSym, ok := sx.GetSymbol(nameObj); ok {
			a := make(zsx.Attributes, 2).
				Set("name", nameSym.GetValue()).
				Set("content", content)
			return ev.EvaluateMeta(a)
		}
		env.err = fmt.Errorf("%v/%T is not a symbol", nameObj, nameObj)
	}
	return sx.Nil()
}

// EvaluateMeta returns HTML meta object for an attribute.
func (ev *Evaluator) EvaluateMeta(a zsx.Attributes) *sx.Pair {
	return sx.Nil().Cons(EvaluateAttributes(a)).Cons(SymMeta)
}

func (ev *Evaluator) bindBlocks() {
	ev.bind(zsx.SymBlock, 0, ev.evalList)
	ev.bind(zsx.SymPara, 0, func(args sx.Vector, env *Environment) sx.Object {
		return ev.evalSlice(args, env).Cons(SymP)
	})
	ev.bind(zsx.SymHeading, 5, func(args sx.Vector, env *Environment) sx.Object {
		nLevel := getInt64(args[0], env)
		if nLevel <= 0 {
			env.err = fmt.Errorf("%v is a negative heading level", nLevel)
			return sx.Nil()
		}
		hLevel := nLevel + ev.headingOffset
		if hLevel > 6 {
			env.err = fmt.Errorf("%v is a too large heading level", hLevel)
			return sx.Nil()
		}
		sLevel := strconv.FormatInt(hLevel, 10)
		headingSymbol := sxhtml.MakeSymbol("h" + sLevel)

		a := GetAttributes(args[1], env)
		env.pushAttributes(a)
		defer env.popAttributes()
		if fragment := getString(args[3], env).GetValue(); fragment != "" {
			a = a.Set("id", ev.unique+fragment)
		}
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			return sx.Nil()
		}
		var result sx.ListBuilder
		result.Add(symBLOCKQUOTE)
		if attrs := EvaluateAttributes(GetAttributes(args[0], env)); attrs != nil {
			result.Add(attrs)
		}

		for _, elem := range args[1:] {
			if quote, isPair := sx.GetPair(ev.Eval(elem, env)); isPair {
				result.Add(quote.Cons(sxhtml.SymListSplice))
			}
		}
		return result.List()
	})

	ev.bind(zsx.SymDescription, 1, func(args sx.Vector, env *Environment) sx.Object {








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			return sx.Nil()
		}
		var result sx.ListBuilder
		result.Add(symBLOCKQUOTE)
		if attrs := EvaluateAttributes(GetAttributes(args[0], env)); attrs != nil {
			result.Add(attrs)
		}
		isCompact := isCompactList(args[1:])
		for _, elem := range args[1:] {
			if quote, isPair := sx.GetPair(ev.Eval(makeCompactItem(isCompact, elem), env)); isPair {
				result.Add(quote.Cons(sxhtml.SymListSplice))
			}
		}
		return result.List()
	})

	ev.bind(zsx.SymDescription, 1, func(args sx.Vector, env *Environment) sx.Object {
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				dditem := getList(ddlst, env)
				result.Add(dditem.Cons(symDD))
			}
		}
		return result.List()
	})

	ev.bind(zsx.SymTable, 1, func(args sx.Vector, env *Environment) sx.Object {
		thead := sx.Nil()
		if header := getList(args[0], env); !sx.IsNil(header) {
			thead = sx.Nil().Cons(ev.evalTableRow(symTH, header, env)).Cons(symTHEAD)
		}

		var tbody sx.ListBuilder
		if len(args) > 1 {
			tbody.Add(symTBODY)
			for _, row := range args[1:] {
				tbody.Add(ev.evalTableRow(symTD, getList(row, env), env))
			}
		}

		table := sx.Nil()
		if !tbody.IsEmpty() {
			table = table.Cons(tbody.List())








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				dditem := getList(ddlst, env)
				result.Add(dditem.Cons(symDD))
			}
		}
		return result.List()
	})

	ev.bind(zsx.SymTable, 2, func(args sx.Vector, env *Environment) sx.Object {
		thead := sx.Nil()
		if header := getList(args[1], env); !sx.IsNil(header) {
			thead = sx.Nil().Cons(ev.evalTableRow(symTH, header, env)).Cons(symTHEAD)
		}

		var tbody sx.ListBuilder
		if len(args) > 2 {
			tbody.Add(symTBODY)
			for _, row := range args[2:] {
				tbody.Add(ev.evalTableRow(symTD, getList(row, env), env))
			}
		}

		table := sx.Nil()
		if !tbody.IsEmpty() {
			table = table.Cons(tbody.List())
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		content := getString(args[1], env)
		if a.HasDefault() {
			content = sx.MakeString(visibleReplacer.Replace(content.GetValue()))
		}
		return evalVerbatim(a, content)
	})
	ev.bind(zsx.SymVerbatimZettel, 0, nilFn)
	ev.bind(zsx.SymBLOB, 4, func(args sx.Vector, env *Environment) sx.Object {
		a := GetAttributes(args[0], env)
		return evalBLOB(a, getList(args[1], env), getString(args[2], env), getString(args[3], env))
	})
	ev.bind(zsx.SymTransclude, 2, func(args sx.Vector, env *Environment) sx.Object {
		if refSym, refValue := GetReference(args[1], env); refSym != nil {
			if refSym.IsEqualSymbol(zsx.SymRefStateExternal) {
				a := GetAttributes(args[0], env).Set("src", refValue).AddClass("external")
				// TODO: if len(args) > 2, add "alt" attr based on args[2:], as in SymEmbed
				return sx.Nil().Cons(sx.Nil().Cons(EvaluateAttributes(a)).Cons(SymIMG)).Cons(SymP)








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		content := getString(args[1], env)
		if a.HasDefault() {
			content = sx.MakeString(visibleReplacer.Replace(content.GetValue()))
		}
		return evalVerbatim(a, content)
	})
	ev.bind(zsx.SymVerbatimZettel, 0, nilFn)
	ev.bind(zsx.SymBLOB, 3, func(args sx.Vector, env *Environment) sx.Object {
		a := GetAttributes(args[0], env)
		return evalBLOB(a, ev.evalSlice(args[3:], env), getString(args[1], env), getString(args[2], env))
	})
	ev.bind(zsx.SymTransclude, 2, func(args sx.Vector, env *Environment) sx.Object {
		if refSym, refValue := GetReference(args[1], env); refSym != nil {
			if refSym.IsEqualSymbol(zsx.SymRefStateExternal) {
				a := GetAttributes(args[0], env).Set("src", refValue).AddClass("external")
				// TODO: if len(args) > 2, add "alt" attr based on args[2:], as in SymEmbed
				return sx.Nil().Cons(sx.Nil().Cons(EvaluateAttributes(a)).Cons(SymIMG)).Cons(SymP)
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	return func(args sx.Vector, env *Environment) sx.Object {
		var result sx.ListBuilder
		result.Add(sym)
		if attrs := EvaluateAttributes(GetAttributes(args[0], env)); attrs != nil {
			result.Add(attrs)
		}
		if len(args) > 1 {

			for _, elem := range args[1:] {

				item := sx.Nil().Cons(SymLI)
				if res, isPair := sx.GetPair(ev.Eval(elem, env)); isPair {
					item.ExtendBang(res)
				}
				result.Add(item)
			}
		}
		return result.List()
	}




























}

func (ev *Evaluator) evalDescriptionTerm(term *sx.Pair, env *Environment) *sx.Pair {
	var result sx.ListBuilder
	for obj := range term.Values() {
		elem := ev.Eval(obj, env)
		result.Add(elem)








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	return func(args sx.Vector, env *Environment) sx.Object {
		var result sx.ListBuilder
		result.Add(sym)
		if attrs := EvaluateAttributes(GetAttributes(args[0], env)); attrs != nil {
			result.Add(attrs)
		}
		if len(args) > 1 {
			isCompact := isCompactList(args[1:])
			for _, elem := range args[1:] {
				var itemLb sx.ListBuilder
				itemLb.Add(SymLI)
				if res, isPair := sx.GetPair(ev.Eval(makeCompactItem(isCompact, elem), env)); isPair {
					itemLb.ExtendBang(res)
				}
				result.Add(itemLb.List())
			}
		}
		return result.List()
	}
}
func isCompactList(elems sx.Vector) bool {
	for _, elem := range elems {
		item, isPair := sx.GetPair(elem)
		if !isPair {
			return false
		}
		if !zsx.SymBlock.IsEqual(item.Car()) {
			return false
		}
		item = item.Tail()
		if item.Tail() != nil { // more than two elements -> multiple paragraphs in item
			return false
		}
		head := item.Head()
		if !zsx.SymPara.IsEqual(head.Car()) {
			return false
		}
	}
	return true
}
func makeCompactItem(isCompact bool, elem sx.Object) sx.Object {
	if isCompact {
		if item, isPair := sx.GetPair(elem); isPair {
			elem = item.Tail().Head().Tail().Cons(zsx.SymInline)
		}
	}
	return elem
}

func (ev *Evaluator) evalDescriptionTerm(term *sx.Pair, env *Environment) *sx.Pair {
	var result sx.ListBuilder
	for obj := range term.Values() {
		elem := ev.Eval(obj, env)
		result.Add(elem)
︙︙
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		noteNum := strconv.Itoa(len(env.endnotes) + 1)
		noteID := ev.unique + noteNum
		env.endnotes = append(env.endnotes, endnoteInfo{
			noteID: noteID, noteAST: args[1:], noteHx: nil, attrs: attrPlist})
		hrefAttr := sx.Nil().Cons(sx.Cons(SymAttrRole, sx.MakeString("doc-noteref"))).
			Cons(sx.Cons(SymAttrHref, sx.MakeString("#fn:"+noteID))).
			Cons(sx.Cons(SymAttrClass, sx.MakeString("zs-noteref"))).
			Cons(sxhtml.SymAttr)
		href := sx.Nil().Cons(sx.MakeString(noteNum)).Cons(hrefAttr).Cons(SymA)
		supAttr := sx.Nil().Cons(sx.Cons(SymAttrID, sx.MakeString("fnref:"+noteID))).Cons(sxhtml.SymAttr)
		return sx.Nil().Cons(href).Cons(supAttr).Cons(symSUP)
	})

	ev.bind(zsx.SymFormatDelete, 1, ev.makeFormatFn(symDEL))
	ev.bind(zsx.SymFormatEmph, 1, ev.makeFormatFn(symEM))
	ev.bind(zsx.SymFormatInsert, 1, ev.makeFormatFn(symINS))
	ev.bind(zsx.SymFormatMark, 1, ev.makeFormatFn(symMARK))








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<

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		noteNum := strconv.Itoa(len(env.endnotes) + 1)
		noteID := ev.unique + noteNum
		env.endnotes = append(env.endnotes, endnoteInfo{
			noteID: noteID, noteAST: args[1:], noteHx: nil, attrs: attrPlist})
		hrefAttr := sx.Nil().Cons(sx.Cons(SymAttrRole, sx.MakeString("doc-noteref"))).
			Cons(sx.Cons(SymAttrHref, sx.MakeString("#fn:"+noteID))).
			Cons(sx.Cons(SymAttrClass, sx.MakeString("zs-noteref")))

		href := sx.Nil().Cons(sx.MakeString(noteNum)).Cons(hrefAttr).Cons(SymA)
		supAttr := sx.Nil().Cons(sx.Cons(SymAttrID, sx.MakeString("fnref:"+noteID)))
		return sx.Nil().Cons(href).Cons(supAttr).Cons(symSUP)
	})

	ev.bind(zsx.SymFormatDelete, 1, ev.makeFormatFn(symDEL))
	ev.bind(zsx.SymFormatEmph, 1, ev.makeFormatFn(symEM))
	ev.bind(zsx.SymFormatInsert, 1, ev.makeFormatFn(symINS))
	ev.bind(zsx.SymFormatMark, 1, ev.makeFormatFn(symMARK))
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	}
	if ev.noLinks {
		return result.Cons(SymSPAN)
	}
	return result.Cons(EvaluateAttributes(a)).Cons(SymA)
}

func getSymbol(obj sx.Object, env *Environment) *sx.Symbol {
	if env.err == nil {
		if sym, ok := sx.GetSymbol(obj); ok {
			return sym
		}
		env.err = fmt.Errorf("%v/%T is not a symbol", obj, obj)
	}
	return sx.MakeSymbol("???")
}
func getString(val sx.Object, env *Environment) sx.String {
	if env.err == nil {
		if s, ok := sx.GetString(val); ok {
			return s
		}
		env.err = fmt.Errorf("%v/%T is not a string", val, val)
	}








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	}
	if ev.noLinks {
		return result.Cons(SymSPAN)
	}
	return result.Cons(EvaluateAttributes(a)).Cons(SymA)
}










func getString(val sx.Object, env *Environment) sx.String {
	if env.err == nil {
		if s, ok := sx.GetString(val); ok {
			return s
		}
		env.err = fmt.Errorf("%v/%T is not a string", val, val)
	}
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	return zsx.GetAttributes(getList(arg, env))
}

// GetReference returns the reference symbol and the reference value of a reference pair.
func GetReference(val sx.Object, env *Environment) (*sx.Symbol, string) {
	if env.err == nil {
		if p := getList(val, env); env.err == nil {
			sym, val := sz.GetReference(p)
			if sym != nil {
				return sym, val
			}
			env.err = fmt.Errorf("%v/%T is not a reference", val, val)
		}
	}
	return nil, ""








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	return zsx.GetAttributes(getList(arg, env))
}

// GetReference returns the reference symbol and the reference value of a reference pair.
func GetReference(val sx.Object, env *Environment) (*sx.Symbol, string) {
	if env.err == nil {
		if p := getList(val, env); env.err == nil {
			sym, val := zsx.GetReference(p)
			if sym != nil {
				return sym, val
			}
			env.err = fmt.Errorf("%v/%T is not a reference", val, val)
		}
	}
	return nil, ""
︙︙
Changes to sz/ref.go.
︙︙
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	"t73f.de/r/sx"
	"t73f.de/r/zsc/api"
	"t73f.de/r/zsc/domain/id"
	"t73f.de/r/zsx"
)

// MakeReference builds a reference node.
func MakeReference(sym *sx.Symbol, val string) *sx.Pair {
	return sx.Cons(sym, sx.Cons(sx.MakeString(val), sx.Nil()))
}

// GetReference returns the reference symbol and value.
func GetReference(ref *sx.Pair) (*sx.Symbol, string) {
	if ref != nil {
		if sym, isSymbol := sx.GetSymbol(ref.Car()); isSymbol {
			val, isString := sx.GetString(ref.Cdr())
			if !isString {
				val, isString = sx.GetString(ref.Tail().Car())
			}
			if isString {
				return sym, val.GetValue()
			}
		}
	}
	return nil, ""
}

// ScanReference scans a string and returns a reference.
//
// This function is very specific for Zettelstore.
func ScanReference(s string) *sx.Pair {
	if len(s) == id.LengthZid {
		if _, err := id.Parse(s); err == nil {
			return MakeReference(SymRefStateZettel, s)
		}
		if s == "00000000000000" {
			return MakeReference(zsx.SymRefStateInvalid, s)
		}
	} else if len(s) > id.LengthZid && s[id.LengthZid] == '#' {
		zidPart := s[:id.LengthZid]
		if _, err := id.Parse(zidPart); err == nil {
			if u, err2 := url.Parse(s); err2 != nil || u.String() != s {
				return MakeReference(zsx.SymRefStateInvalid, s)
			}
			return MakeReference(SymRefStateZettel, s)
		}
		if zidPart == "00000000000000" {
			return MakeReference(zsx.SymRefStateInvalid, s)
		}
	}
	if strings.HasPrefix(s, api.QueryPrefix) {
		return MakeReference(SymRefStateQuery, s[len(api.QueryPrefix):])
	}
	if strings.HasPrefix(s, "//") {
		if u, err := url.Parse(s[1:]); err == nil {
			if u.Scheme == "" && u.Opaque == "" && u.Host == "" && u.User == nil {
				if u.String() == s[1:] {
					return MakeReference(SymRefStateBased, s[1:])
				}
				return MakeReference(zsx.SymRefStateInvalid, s)
			}
		}
	}

	if s == "" {
		return MakeReference(zsx.SymRefStateInvalid, s)
	}
	u, err := url.Parse(s)
	if err != nil || u.String() != s {
		return MakeReference(zsx.SymRefStateInvalid, s)
	}
	sym := zsx.SymRefStateExternal
	if u.Scheme == "" && u.Opaque == "" && u.Host == "" && u.User == nil {
		if s[0] == '#' {
			sym = zsx.SymRefStateSelf
		} else {
			sym = zsx.SymRefStateHosted
		}
	}
	return MakeReference(sym, s)
}








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	"t73f.de/r/sx"
	"t73f.de/r/zsc/api"
	"t73f.de/r/zsc/domain/id"
	"t73f.de/r/zsx"
)






















// ScanReference scans a string and returns a reference.
//
// This function is very specific for Zettelstore.
func ScanReference(s string) *sx.Pair {
	if len(s) == id.LengthZid {
		if _, err := id.Parse(s); err == nil {
			return zsx.MakeReference(SymRefStateZettel, s)
		}
		if s == "00000000000000" {
			return zsx.MakeReference(zsx.SymRefStateInvalid, s)
		}
	} else if len(s) > id.LengthZid && s[id.LengthZid] == '#' {
		zidPart := s[:id.LengthZid]
		if _, err := id.Parse(zidPart); err == nil {
			if u, err2 := url.Parse(s); err2 != nil || u.String() != s {
				return zsx.MakeReference(zsx.SymRefStateInvalid, s)
			}
			return zsx.MakeReference(SymRefStateZettel, s)
		}
		if zidPart == "00000000000000" {
			return zsx.MakeReference(zsx.SymRefStateInvalid, s)
		}
	}
	if strings.HasPrefix(s, api.QueryPrefix) {
		return zsx.MakeReference(SymRefStateQuery, s[len(api.QueryPrefix):])
	}
	if strings.HasPrefix(s, "//") {
		if u, err := url.Parse(s[1:]); err == nil {
			if u.Scheme == "" && u.Opaque == "" && u.Host == "" && u.User == nil {
				if u.String() == s[1:] {
					return zsx.MakeReference(SymRefStateBased, s[1:])
				}
				return zsx.MakeReference(zsx.SymRefStateInvalid, s)
			}
		}
	}

	if s == "" {
		return zsx.MakeReference(zsx.SymRefStateInvalid, s)
	}
	u, err := url.Parse(s)
	if err != nil || u.String() != s {
		return zsx.MakeReference(zsx.SymRefStateInvalid, s)
	}
	sym := zsx.SymRefStateExternal
	if u.Scheme == "" && u.Opaque == "" && u.Host == "" && u.User == nil {
		if s[0] == '#' {
			sym = zsx.SymRefStateSelf
		} else {
			sym = zsx.SymRefStateHosted
		}
	}
	return zsx.MakeReference(sym, s)
}
Changes to sz/zmk/block.go.
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		case input.EOS:
			// add to table
			if cp.lastRow == nil {
				if row.IsEmpty() {
					return nil
				}
				cp.lastRow = sx.Cons(row.List(), nil)
				return cp.lastRow.Cons(nil).Cons(zsx.SymTable)
			}
			cp.lastRow = cp.lastRow.AppendBang(row.List())
			return nil
		}
		// inp.Ch must be '|'
	}
}








|








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		case input.EOS:
			// add to table
			if cp.lastRow == nil {
				if row.IsEmpty() {
					return nil
				}
				cp.lastRow = sx.Cons(row.List(), nil)
				return cp.lastRow.Cons(nil).Cons(nil).Cons(zsx.SymTable)
			}
			cp.lastRow = cp.lastRow.AppendBang(row.List())
			return nil
		}
		// inp.Ch must be '|'
	}
}
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		inp.Next()
	}
	inp.Next() // consume last '}'
	attrs := parseBlockAttributes(inp)
	inp.SkipToEOL()
	refText := string(inp.Src[posA:posE])
	ref := cp.scanReference(refText)
	return zsx.MakeTransclusion(attrs, ref, sx.Nil()), true
}








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		inp.Next()
	}
	inp.Next() // consume last '}'
	attrs := parseBlockAttributes(inp)
	inp.SkipToEOL()
	refText := string(inp.Src[posA:posE])
	ref := cp.scanReference(refText)
	return zsx.MakeTransclusion(attrs, ref, nil), true
}
Changes to sz/zmk/post-processor.go.
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)

var symInVerse = sx.MakeSymbol("in-verse")
var symNoBlock = sx.MakeSymbol("no-block")

type postProcessor struct{}

func (pp *postProcessor) VisitBefore(lst *sx.Pair, env *sx.Pair) (sx.Object, bool) {
	if lst == nil {
		return nil, true
	}
	sym, isSym := sx.GetSymbol(lst.Car())
	if !isSym {
		panic(lst)
	}
	if fn, found := symMap[sym]; found {
		return fn(pp, lst, env), true
	}
	return nil, false
}

func (pp *postProcessor) VisitAfter(lst *sx.Pair, _ *sx.Pair) sx.Object { return lst }

func (pp *postProcessor) visitPairList(lst *sx.Pair, env *sx.Pair) *sx.Pair {
	var pList sx.ListBuilder
	for node := range lst.Pairs() {
		if elem, isPair := sx.GetPair(zsx.Walk(pp, node.Head(), env)); isPair && elem != nil {
			pList.Add(elem)
		}
	}
	return pList.List()
}

var symMap map[*sx.Symbol]func(*postProcessor, *sx.Pair, *sx.Pair) *sx.Pair








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)

var symInVerse = sx.MakeSymbol("in-verse")
var symNoBlock = sx.MakeSymbol("no-block")

type postProcessor struct{}

func (pp *postProcessor) VisitBefore(lst *sx.Pair, alst *sx.Pair) (sx.Object, bool) {
	if lst == nil {
		return nil, true
	}
	sym, isSym := sx.GetSymbol(lst.Car())
	if !isSym {
		panic(lst)
	}
	if fn, found := symMap[sym]; found {
		return fn(pp, lst, alst), true
	}
	return nil, false
}

func (pp *postProcessor) VisitAfter(lst *sx.Pair, _ *sx.Pair) sx.Object { return lst }

func (pp *postProcessor) visitPairList(lst *sx.Pair, alst *sx.Pair) *sx.Pair {
	var pList sx.ListBuilder
	for node := range lst.Pairs() {
		if elem, isPair := sx.GetPair(zsx.Walk(pp, node.Head(), alst)); isPair && elem != nil {
			pList.Add(elem)
		}
	}
	return pList.List()
}

var symMap map[*sx.Symbol]func(*postProcessor, *sx.Pair, *sx.Pair) *sx.Pair
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		symSeparator: ignoreProcess,
	}
}

func ignoreProcess(*postProcessor, *sx.Pair, *sx.Pair) *sx.Pair { return nil }

func postProcessBlockList(pp *postProcessor, lst *sx.Pair, env *sx.Pair) *sx.Pair {
	result := pp.visitPairList(lst.Tail(), env)
	if result == nil {
		if noBlockPair := env.Assoc(symNoBlock); noBlockPair == nil || sx.IsTrue(noBlockPair.Cdr()) {
			return nil
		}
	}
	return result.Cons(lst.Car())
}

func postProcessInlineList(pp *postProcessor, lst *sx.Pair, env *sx.Pair) *sx.Pair {
	sym := lst.Car()
	if rest := pp.visitInlines(lst.Tail(), env); rest != nil {
		return rest.Cons(sym)
	}
	return nil
}

func postProcessRegion(pp *postProcessor, rn *sx.Pair, env *sx.Pair) *sx.Pair {
	return doPostProcessRegion(pp, rn, env, env)
}

func postProcessRegionVerse(pp *postProcessor, rn *sx.Pair, env *sx.Pair) *sx.Pair {
	return doPostProcessRegion(pp, rn, env.Cons(sx.Cons(symInVerse, nil)), env)
}

func doPostProcessRegion(pp *postProcessor, rn *sx.Pair, envBlock, envInline *sx.Pair) *sx.Pair {
	sym := rn.Car().(*sx.Symbol)
	next := rn.Tail()
	attrs := next.Car().(*sx.Pair)
	next = next.Tail()
	blocks := pp.visitPairList(next.Head(), envBlock)
	text := pp.visitInlines(next.Tail(), envInline)
	if blocks == nil && text == nil {
		return nil
	}
	return zsx.MakeRegion(sym, attrs, blocks, text)
}

func postProcessVerbatim(_ *postProcessor, verb *sx.Pair, _ *sx.Pair) *sx.Pair {
	if content, isString := sx.GetString(verb.Tail().Tail().Car()); isString && content.GetValue() != "" {
		return verb
	}
	return nil
}

func postProcessHeading(pp *postProcessor, hn *sx.Pair, env *sx.Pair) *sx.Pair {
	next := hn.Tail()
	level := next.Car().(sx.Int64)
	next = next.Tail()
	attrs := next.Car().(*sx.Pair)
	next = next.Tail()
	slug := next.Car().(sx.String)
	next = next.Tail()
	fragment := next.Car().(sx.String)
	if text := pp.visitInlines(next.Tail(), env); text != nil {
		return zsx.MakeHeading(int(level), attrs, text, slug.GetValue(), fragment.GetValue())
	}
	return nil
}

func postProcessItemList(pp *postProcessor, ln *sx.Pair, env *sx.Pair) *sx.Pair {
	attrs := ln.Tail().Head()
	elems := pp.visitListElems(ln.Tail(), env)
	if elems == nil {
		return nil
	}
	return zsx.MakeList(ln.Car().(*sx.Symbol), attrs, elems)
}

func postProcessQuoteList(pp *postProcessor, ln *sx.Pair, env *sx.Pair) *sx.Pair {
	attrs := ln.Tail().Head()
	elems := pp.visitListElems(ln.Tail(), env.Cons(sx.Cons(symNoBlock, nil)))

	// Collect multiple paragraph items into one item.

	var newElems sx.ListBuilder
	var newPara sx.ListBuilder

	addtoParagraph := func() {








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		symSeparator: ignoreProcess,
	}
}

func ignoreProcess(*postProcessor, *sx.Pair, *sx.Pair) *sx.Pair { return nil }

func postProcessBlockList(pp *postProcessor, lst *sx.Pair, alst *sx.Pair) *sx.Pair {
	result := pp.visitPairList(lst.Tail(), alst)
	if result == nil {
		if noBlockPair := alst.Assoc(symNoBlock); noBlockPair == nil || sx.IsTrue(noBlockPair.Cdr()) {
			return nil
		}
	}
	return result.Cons(lst.Car())
}

func postProcessInlineList(pp *postProcessor, lst *sx.Pair, alst *sx.Pair) *sx.Pair {
	sym := lst.Car()
	if rest := pp.visitInlines(lst.Tail(), alst); rest != nil {
		return rest.Cons(sym)
	}
	return nil
}

func postProcessRegion(pp *postProcessor, rn *sx.Pair, alst *sx.Pair) *sx.Pair {
	return doPostProcessRegion(pp, rn, alst, alst)
}

func postProcessRegionVerse(pp *postProcessor, rn *sx.Pair, alst *sx.Pair) *sx.Pair {
	return doPostProcessRegion(pp, rn, alst.Cons(sx.Cons(symInVerse, nil)), alst)
}

func doPostProcessRegion(pp *postProcessor, rn *sx.Pair, alstBlock, alstInline *sx.Pair) *sx.Pair {
	sym := rn.Car().(*sx.Symbol)
	next := rn.Tail()
	attrs := next.Car().(*sx.Pair)
	next = next.Tail()
	blocks := pp.visitPairList(next.Head(), alstBlock)
	text := pp.visitInlines(next.Tail(), alstInline)
	if blocks == nil && text == nil {
		return nil
	}
	return zsx.MakeRegion(sym, attrs, blocks, text)
}

func postProcessVerbatim(_ *postProcessor, verb *sx.Pair, _ *sx.Pair) *sx.Pair {
	if content, isString := sx.GetString(verb.Tail().Tail().Car()); isString && content.GetValue() != "" {
		return verb
	}
	return nil
}

func postProcessHeading(pp *postProcessor, hn *sx.Pair, alst *sx.Pair) *sx.Pair {
	next := hn.Tail()
	level := next.Car().(sx.Int64)
	next = next.Tail()
	attrs := next.Car().(*sx.Pair)
	next = next.Tail()
	slug := next.Car().(sx.String)
	next = next.Tail()
	fragment := next.Car().(sx.String)
	if text := pp.visitInlines(next.Tail(), alst); text != nil {
		return zsx.MakeHeading(int(level), attrs, text, slug.GetValue(), fragment.GetValue())
	}
	return nil
}

func postProcessItemList(pp *postProcessor, ln *sx.Pair, alst *sx.Pair) *sx.Pair {
	attrs := ln.Tail().Head()
	elems := pp.visitListElems(ln.Tail(), alst)
	if elems == nil {
		return nil
	}
	return zsx.MakeList(ln.Car().(*sx.Symbol), attrs, elems)
}

func postProcessQuoteList(pp *postProcessor, ln *sx.Pair, alst *sx.Pair) *sx.Pair {
	attrs := ln.Tail().Head()
	elems := pp.visitListElems(ln.Tail(), alst.Cons(sx.Cons(symNoBlock, nil)))

	// Collect multiple paragraph items into one item.

	var newElems sx.ListBuilder
	var newPara sx.ListBuilder

	addtoParagraph := func() {
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		addtoParagraph()
		newElems.Add(item)
	}
	addtoParagraph()
	return zsx.MakeList(ln.Car().(*sx.Symbol), attrs, newElems.List())
}

func (pp *postProcessor) visitListElems(ln *sx.Pair, env *sx.Pair) *sx.Pair {
	var pList sx.ListBuilder
	for node := range ln.Tail().Pairs() {
		if elem := zsx.Walk(pp, node.Head(), env); elem != nil {
			pList.Add(elem)
		}
	}
	return pList.List()
}

func postProcessDescription(pp *postProcessor, dl *sx.Pair, env *sx.Pair) *sx.Pair {
	attrs := dl.Tail().Head()
	var dList sx.ListBuilder
	isTerm := false
	for node := range dl.Tail().Tail().Pairs() {
		isTerm = !isTerm
		if isTerm {
			dList.Add(pp.visitInlines(node.Head(), env))
		} else {
			dList.Add(zsx.Walk(pp, node.Head(), env))
		}
	}
	return dList.List().Cons(attrs).Cons(dl.Car())
}

func postProcessTable(pp *postProcessor, tbl *sx.Pair, env *sx.Pair) *sx.Pair {
	sym := tbl.Car()

	next := tbl.Tail()
	header := next.Head()
	if header != nil {
		// Already post-processed
		return tbl
	}
	rows, width := pp.visitRows(next.Tail(), env)
	if rows == nil {
		// Header and row are nil -> no table
		return nil
	}
	header, rows, align := splitTableHeader(rows, width)
	alignRow(header, align)
	for node := range rows.Pairs() {
		alignRow(node.Head(), align)
	}
	return rows.Cons(header).Cons(sym)
}

func (pp *postProcessor) visitRows(rows *sx.Pair, env *sx.Pair) (*sx.Pair, int) {
	maxWidth := 0
	var pRows sx.ListBuilder
	for node := range rows.Pairs() {
		row := node.Head()
		row, width := pp.visitCells(row, env)
		if maxWidth < width {
			maxWidth = width
		}
		pRows.Add(row)
	}
	return pRows.List(), maxWidth
}

func (pp *postProcessor) visitCells(cells *sx.Pair, env *sx.Pair) (*sx.Pair, int) {
	width := 0
	var pCells sx.ListBuilder
	for node := range cells.Pairs() {
		cell := node.Head()
		rest := cell.Tail()
		attrs := rest.Head()
		ins := pp.visitInlines(rest.Tail(), env)
		pCells.Add(zsx.MakeCell(attrs, ins))
		width++
	}
	return pCells.List(), width
}

func splitTableHeader(rows *sx.Pair, width int) (header, realRows *sx.Pair, align []byte) {








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		addtoParagraph()
		newElems.Add(item)
	}
	addtoParagraph()
	return zsx.MakeList(ln.Car().(*sx.Symbol), attrs, newElems.List())
}

func (pp *postProcessor) visitListElems(ln *sx.Pair, alst *sx.Pair) *sx.Pair {
	var pList sx.ListBuilder
	for node := range ln.Tail().Pairs() {
		if elem := zsx.Walk(pp, node.Head(), alst); elem != nil {
			pList.Add(elem)
		}
	}
	return pList.List()
}

func postProcessDescription(pp *postProcessor, dl *sx.Pair, alst *sx.Pair) *sx.Pair {
	attrs := dl.Tail().Head()
	var dList sx.ListBuilder
	isTerm := false
	for node := range dl.Tail().Tail().Pairs() {
		isTerm = !isTerm
		if isTerm {
			dList.Add(pp.visitInlines(node.Head(), alst))
		} else {
			dList.Add(zsx.Walk(pp, node.Head(), alst.Cons(sx.Cons(symNoBlock, nil))))
		}
	}
	return dList.List().Cons(attrs).Cons(dl.Car())
}

func postProcessTable(pp *postProcessor, tbl *sx.Pair, alst *sx.Pair) *sx.Pair {
	sym, next := tbl.Car(), tbl.Tail()
	attrs := next.Head()
	next = next.Tail()
	header := next.Head()
	if header != nil {
		// Already post-processed
		return tbl
	}
	rows, width := pp.visitRows(next.Tail(), alst)
	if rows == nil {
		// Header and row are nil -> no table
		return nil
	}
	header, rows, align := splitTableHeader(rows, width)
	alignRow(header, align)
	for node := range rows.Pairs() {
		alignRow(node.Head(), align)
	}
	return rows.Cons(header).Cons(attrs).Cons(sym)
}

func (pp *postProcessor) visitRows(rows *sx.Pair, alst *sx.Pair) (*sx.Pair, int) {
	maxWidth := 0
	var pRows sx.ListBuilder
	for node := range rows.Pairs() {
		row := node.Head()
		row, width := pp.visitCells(row, alst)
		if maxWidth < width {
			maxWidth = width
		}
		pRows.Add(row)
	}
	return pRows.List(), maxWidth
}

func (pp *postProcessor) visitCells(cells *sx.Pair, alst *sx.Pair) (*sx.Pair, int) {
	width := 0
	var pCells sx.ListBuilder
	for node := range cells.Pairs() {
		cell := node.Head()
		rest := cell.Tail()
		attrs := rest.Head()
		ins := pp.visitInlines(rest.Tail(), alst)
		pCells.Add(zsx.MakeCell(attrs, ins))
		width++
	}
	return pCells.List(), width
}

func splitTableHeader(rows *sx.Pair, width int) (header, realRows *sx.Pair, align []byte) {
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	case '>':
		return zsx.AttrAlignRight, true
	default:
		return sx.MakeString(""), false
	}
}

func (pp *postProcessor) visitInlines(lst *sx.Pair, env *sx.Pair) *sx.Pair {
	length := lst.Length()
	if length <= 0 {
		return nil
	}
	inVerse := env.Assoc(symInVerse) != nil
	vector := make([]*sx.Pair, 0, length)
	// 1st phase: process all childs, ignore ' ' / '\t' at start, and merge some elements
	for node := range lst.Pairs() {
		elem, isPair := sx.GetPair(zsx.Walk(pp, node.Head(), env))
		if !isPair || elem == nil {
			continue
		}
		elemSym := elem.Car()
		elemTail := elem.Tail()

		if inVerse && elemSym.IsEqual(zsx.SymText) {








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	case '>':
		return zsx.AttrAlignRight, true
	default:
		return sx.MakeString(""), false
	}
}

func (pp *postProcessor) visitInlines(lst *sx.Pair, alst *sx.Pair) *sx.Pair {
	length := lst.Length()
	if length <= 0 {
		return nil
	}
	inVerse := alst.Assoc(symInVerse) != nil
	vector := make([]*sx.Pair, 0, length)
	// 1st phase: process all childs, ignore ' ' / '\t' at start, and merge some elements
	for node := range lst.Pairs() {
		elem, isPair := sx.GetPair(zsx.Walk(pp, node.Head(), alst))
		if !isPair || elem == nil {
			continue
		}
		elemSym := elem.Car()
		elemTail := elem.Tail()

		if inVerse && elemSym.IsEqual(zsx.SymText) {
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		if content, isString := sx.GetString(tail.Car()); isString && content.GetValue() != "" {
			return txt
		}
	}
	return nil
}

func postProcessSoft(_ *postProcessor, sn *sx.Pair, env *sx.Pair) *sx.Pair {
	if env.Assoc(symInVerse) == nil {
		return sn
	}
	return sx.Cons(zsx.SymHard, nil)
}

func postProcessEndnote(pp *postProcessor, en *sx.Pair, env *sx.Pair) *sx.Pair {
	next := en.Tail()
	attrs := next.Car().(*sx.Pair)
	if text := pp.visitInlines(next.Tail(), env); text != nil {
		return zsx.MakeEndnote(attrs, text)
	}
	return zsx.MakeEndnote(attrs, sx.Nil())
}

func postProcessMark(pp *postProcessor, en *sx.Pair, env *sx.Pair) *sx.Pair {
	next := en.Tail()
	mark := next.Car().(sx.String)
	next = next.Tail()
	slug := next.Car().(sx.String)
	next = next.Tail()
	fragment := next.Car().(sx.String)
	text := pp.visitInlines(next.Tail(), env)
	return zsx.MakeMark(mark.GetValue(), slug.GetValue(), fragment.GetValue(), text)
}

func postProcessInlines4(pp *postProcessor, ln *sx.Pair, env *sx.Pair) *sx.Pair {
	sym := ln.Car()
	next := ln.Tail()
	attrs := next.Car()
	next = next.Tail()
	val3 := next.Car()
	text := pp.visitInlines(next.Tail(), env)
	return text.Cons(val3).Cons(attrs).Cons(sym)
}

func postProcessEmbed(pp *postProcessor, ln *sx.Pair, env *sx.Pair) *sx.Pair {
	next := ln.Tail()
	attrs := next.Car().(*sx.Pair)
	next = next.Tail()
	ref := next.Car()
	next = next.Tail()
	syntax := next.Car().(sx.String)
	text := pp.visitInlines(next.Tail(), env)
	return zsx.MakeEmbed(attrs, ref, syntax.GetValue(), text)
}

func postProcessFormat(pp *postProcessor, fn *sx.Pair, env *sx.Pair) *sx.Pair {
	symFormat := fn.Car().(*sx.Symbol)
	next := fn.Tail() // Attrs
	attrs := next.Car().(*sx.Pair)
	next = next.Tail() // Possible inlines
	if next == nil {
		return fn
	}
	inlines := pp.visitInlines(next, env)
	return zsx.MakeFormat(symFormat, attrs, inlines)
}








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		if content, isString := sx.GetString(tail.Car()); isString && content.GetValue() != "" {
			return txt
		}
	}
	return nil
}

func postProcessSoft(_ *postProcessor, sn *sx.Pair, alst *sx.Pair) *sx.Pair {
	if alst.Assoc(symInVerse) == nil {
		return sn
	}
	return sx.Cons(zsx.SymHard, nil)
}

func postProcessEndnote(pp *postProcessor, en *sx.Pair, alst *sx.Pair) *sx.Pair {
	next := en.Tail()
	attrs := next.Car().(*sx.Pair)
	if text := pp.visitInlines(next.Tail(), alst); text != nil {
		return zsx.MakeEndnote(attrs, text)
	}
	return zsx.MakeEndnote(attrs, sx.Nil())
}

func postProcessMark(pp *postProcessor, en *sx.Pair, alst *sx.Pair) *sx.Pair {
	next := en.Tail()
	mark := next.Car().(sx.String)
	next = next.Tail()
	slug := next.Car().(sx.String)
	next = next.Tail()
	fragment := next.Car().(sx.String)
	text := pp.visitInlines(next.Tail(), alst)
	return zsx.MakeMark(mark.GetValue(), slug.GetValue(), fragment.GetValue(), text)
}

func postProcessInlines4(pp *postProcessor, ln *sx.Pair, alst *sx.Pair) *sx.Pair {
	sym := ln.Car()
	next := ln.Tail()
	attrs := next.Car()
	next = next.Tail()
	val3 := next.Car()
	text := pp.visitInlines(next.Tail(), alst)
	return text.Cons(val3).Cons(attrs).Cons(sym)
}

func postProcessEmbed(pp *postProcessor, ln *sx.Pair, alst *sx.Pair) *sx.Pair {
	next := ln.Tail()
	attrs := next.Car().(*sx.Pair)
	next = next.Tail()
	ref := next.Car()
	next = next.Tail()
	syntax := next.Car().(sx.String)
	text := pp.visitInlines(next.Tail(), alst)
	return zsx.MakeEmbed(attrs, ref, syntax.GetValue(), text)
}

func postProcessFormat(pp *postProcessor, fn *sx.Pair, alst *sx.Pair) *sx.Pair {
	symFormat := fn.Car().(*sx.Symbol)
	next := fn.Tail() // Attrs
	attrs := next.Car().(*sx.Pair)
	next = next.Tail() // Possible inlines
	if next == nil {
		return fn
	}
	inlines := pp.visitInlines(next, alst)
	return zsx.MakeFormat(symFormat, attrs, inlines)
}
Changes to sz/zmk/zmk.go.
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		lastPara = cp.parseBlock(&blkBuild, lastPara)
	}
	if cp.nestingLevel != 0 {
		panic("Nesting level was not decremented")
	}

	var pp postProcessor
	if bs := pp.visitPairList(blkBuild.List(), nil); bs != nil {
		return bs.Cons(zsx.SymBlock)
	}
	return nil
}

func withQueryPrefix(src []byte) bool {
	return len(src) > len(api.QueryPrefix) && string(src[:len(api.QueryPrefix)]) == api.QueryPrefix
}

// runeModGrave is Unicode code point U+02CB (715) called "MODIFIER LETTER








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		lastPara = cp.parseBlock(&blkBuild, lastPara)
	}
	if cp.nestingLevel != 0 {
		panic("Nesting level was not decremented")
	}

	var pp postProcessor
	return pp.visitPairList(blkBuild.List(), nil).Cons(zsx.SymBlock)



}

func withQueryPrefix(src []byte) bool {
	return len(src) > len(api.QueryPrefix) && string(src[:len(api.QueryPrefix)]) == api.QueryPrefix
}

// runeModGrave is Unicode code point U+02CB (715) called "MODIFIER LETTER
︙︙
Changes to sz/zmk/zmk_test.go.
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	var parser zmk.Parser
	for tcn, tc := range tcs {
		t.Run(fmt.Sprintf("TC=%02d,src=%q", tcn, tc.source), func(st *testing.T) {
			st.Helper()
			inp := input.NewInput([]byte(tc.source))
			parser.Initialize(inp)
			ast := parser.Parse()



			zsx.Walk(astWalker{}, ast, nil)
			got := ast.String()



			if tc.want != got {
				st.Errorf("\nwant=%q\n got=%q", tc.want, got)
			}
		})
	}
}

type astWalker struct{}

func (astWalker) VisitBefore(node *sx.Pair, env *sx.Pair) (sx.Object, bool) { return sx.Nil(), false }
func (astWalker) VisitAfter(node *sx.Pair, env *sx.Pair) sx.Object          { return node }






func TestEdges(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"\"\"\"\n; \n0{{0}}{0}\n\"\"\"", "(BLOCK (REGION-VERSE () ((DESCRIPTION () ()) (PARA (TEXT \"0\") (EMBED ((\"0\" . \"\")) (HOSTED \"0\") \"\")))))"},
	})
}

func TestEOL(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"", "()"},
		{"\n", "()"},
		{"\r", "()"},
		{"\r\n", "()"},
		{"\n\n", "()"},
	})
}

func TestText(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"abcd", "(BLOCK (PARA (TEXT \"abcd\")))"},
		{"ab cd", "(BLOCK (PARA (TEXT \"ab cd\")))"},
		{"abcd ", "(BLOCK (PARA (TEXT \"abcd\")))"},
		{" abcd", "(BLOCK (PARA (TEXT \"abcd\")))"},
		{"\\", "(BLOCK (PARA (TEXT \"\\\\\")))"},
		{"\\\n", "()"},
		{"\\\ndef", "(BLOCK (PARA (HARD) (TEXT \"def\")))"},
		{"\\\r", "()"},
		{"\\\rdef", "(BLOCK (PARA (HARD) (TEXT \"def\")))"},
		{"\\\r\n", "()"},
		{"\\\r\ndef", "(BLOCK (PARA (HARD) (TEXT \"def\")))"},
		{"\\a", "(BLOCK (PARA (TEXT \"a\")))"},
		{"\\aa", "(BLOCK (PARA (TEXT \"aa\")))"},
		{"a\\a", "(BLOCK (PARA (TEXT \"aa\")))"},
		{"\\+", "(BLOCK (PARA (TEXT \"+\")))"},
		{"\\ ", "(BLOCK (PARA (TEXT \"\u00a0\")))"},
		{"http://a, http://b", "(BLOCK (PARA (TEXT \"http://a, http://b\")))"},
	})
}

func TestSpace(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{" ", "()"},
		{"\t", "()"},
		{"  ", "()"},
	})
}

func TestSoftBreak(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"x\ny", "(BLOCK (PARA (TEXT \"x\") (SOFT) (TEXT \"y\")))"},
		{"z\n", "(BLOCK (PARA (TEXT \"z\")))"},
		{" \n ", "()"},
		{" \n", "()"},
	})
}

func TestHardBreak(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"x  \ny", "(BLOCK (PARA (TEXT \"x\") (HARD) (TEXT \"y\")))"},
		{"z  \n", "(BLOCK (PARA (TEXT \"z\")))"},
		{"   \n ", "()"},
		{"   \n", "()"},
	})
}

func TestLink(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"[", "(BLOCK (PARA (TEXT \"[\")))"},








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	var parser zmk.Parser
	for tcn, tc := range tcs {
		t.Run(fmt.Sprintf("TC=%02d,src=%q", tcn, tc.source), func(st *testing.T) {
			st.Helper()
			inp := input.NewInput([]byte(tc.source))
			parser.Initialize(inp)
			ast := parser.Parse()
			if got := ast.String(); tc.want != got {
				st.Errorf("none\nwant=%q\n got=%q", tc.want, got)
			}
			copyAST := zsx.Walk(astWalker{}, ast, nil)
			if got := copyAST.String(); tc.want != got {
				st.Errorf("copy\nwant=%q\n got=%q", tc.want, got)
			}
			zsx.WalkIt(astWalkerIt{}, ast, nil)
			if got := ast.String(); tc.want != got {
				st.Errorf("itit\nwant=%q\n got=%q", tc.want, got)
			}
		})
	}
}

type astWalker struct{}

func (astWalker) VisitBefore(*sx.Pair, *sx.Pair) (sx.Object, bool) { return sx.Nil(), false }
func (astWalker) VisitAfter(node *sx.Pair, _ *sx.Pair) sx.Object   { return node }

type astWalkerIt struct{}

func (astWalkerIt) VisitBefore(*sx.Pair, *sx.Pair) bool { return false }
func (astWalkerIt) VisitAfter(*sx.Pair, *sx.Pair)       {}

func TestEdges(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"\"\"\"\n; \n0{{0}}{0}\n\"\"\"", "(BLOCK (REGION-VERSE () ((DESCRIPTION () ()) (PARA (TEXT \"0\") (EMBED ((\"0\" . \"\")) (HOSTED \"0\") \"\")))))"},
	})
}

func TestEOL(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"", "(BLOCK)"},
		{"\n", "(BLOCK)"},
		{"\r", "(BLOCK)"},
		{"\r\n", "(BLOCK)"},
		{"\n\n", "(BLOCK)"},
	})
}

func TestText(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"abcd", "(BLOCK (PARA (TEXT \"abcd\")))"},
		{"ab cd", "(BLOCK (PARA (TEXT \"ab cd\")))"},
		{"abcd ", "(BLOCK (PARA (TEXT \"abcd\")))"},
		{" abcd", "(BLOCK (PARA (TEXT \"abcd\")))"},
		{"\\", "(BLOCK (PARA (TEXT \"\\\\\")))"},
		{"\\\n", "(BLOCK)"},
		{"\\\ndef", "(BLOCK (PARA (HARD) (TEXT \"def\")))"},
		{"\\\r", "(BLOCK)"},
		{"\\\rdef", "(BLOCK (PARA (HARD) (TEXT \"def\")))"},
		{"\\\r\n", "(BLOCK)"},
		{"\\\r\ndef", "(BLOCK (PARA (HARD) (TEXT \"def\")))"},
		{"\\a", "(BLOCK (PARA (TEXT \"a\")))"},
		{"\\aa", "(BLOCK (PARA (TEXT \"aa\")))"},
		{"a\\a", "(BLOCK (PARA (TEXT \"aa\")))"},
		{"\\+", "(BLOCK (PARA (TEXT \"+\")))"},
		{"\\ ", "(BLOCK (PARA (TEXT \"\u00a0\")))"},
		{"http://a, http://b", "(BLOCK (PARA (TEXT \"http://a, http://b\")))"},
	})
}

func TestSpace(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{" ", "(BLOCK)"},
		{"\t", "(BLOCK)"},
		{"  ", "(BLOCK)"},
	})
}

func TestSoftBreak(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"x\ny", "(BLOCK (PARA (TEXT \"x\") (SOFT) (TEXT \"y\")))"},
		{"z\n", "(BLOCK (PARA (TEXT \"z\")))"},
		{" \n ", "(BLOCK)"},
		{" \n", "(BLOCK)"},
	})
}

func TestHardBreak(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"x  \ny", "(BLOCK (PARA (TEXT \"x\") (HARD) (TEXT \"y\")))"},
		{"z  \n", "(BLOCK (PARA (TEXT \"z\")))"},
		{"   \n ", "(BLOCK)"},
		{"   \n", "(BLOCK)"},
	})
}

func TestLink(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"[", "(BLOCK (PARA (TEXT \"[\")))"},
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		{"E: &amp;,&#63;;&#x63;.", "(BLOCK (PARA (TEXT \"E: &,?;c.\")))"},
	})
}

func TestVerbatimZettel(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"@@@\n@@@", "()"},
		{"@@@\nabc\n@@@", "(BLOCK (VERBATIM-ZETTEL () \"abc\"))"},
		{"@@@@def\nabc\n@@@@", "(BLOCK (VERBATIM-ZETTEL ((\"\" . \"def\")) \"abc\"))"},
	})
}

func TestVerbatimCode(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"```\n```", "()"},
		{"```\nabc\n```", "(BLOCK (VERBATIM-CODE () \"abc\"))"},
		{"```\nabc\n````", "(BLOCK (VERBATIM-CODE () \"abc\"))"},
		{"````\nabc\n````", "(BLOCK (VERBATIM-CODE () \"abc\"))"},
		{"````\nabc\n```\n````", "(BLOCK (VERBATIM-CODE () \"abc\\n```\"))"},
		{"````go\nabc\n````", "(BLOCK (VERBATIM-CODE ((\"\" . \"go\")) \"abc\"))"},
	})
}

func TestVerbatimEval(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"~~~\n~~~", "()"},
		{"~~~\nabc\n~~~", "(BLOCK (VERBATIM-EVAL () \"abc\"))"},
		{"~~~\nabc\n~~~~", "(BLOCK (VERBATIM-EVAL () \"abc\"))"},
		{"~~~~\nabc\n~~~~", "(BLOCK (VERBATIM-EVAL () \"abc\"))"},
		{"~~~~\nabc\n~~~\n~~~~", "(BLOCK (VERBATIM-EVAL () \"abc\\n~~~\"))"},
		{"~~~~go\nabc\n~~~~", "(BLOCK (VERBATIM-EVAL ((\"\" . \"go\")) \"abc\"))"},
	})
}

func TestVerbatimMath(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"$$$\n$$$", "()"},
		{"$$$\nabc\n$$$", "(BLOCK (VERBATIM-MATH () \"abc\"))"},
		{"$$$\nabc\n$$$$", "(BLOCK (VERBATIM-MATH () \"abc\"))"},
		{"$$$$\nabc\n$$$$", "(BLOCK (VERBATIM-MATH () \"abc\"))"},
		{"$$$$\nabc\n$$$\n$$$$", "(BLOCK (VERBATIM-MATH () \"abc\\n$$$\"))"},
		{"$$$$go\nabc\n$$$$", "(BLOCK (VERBATIM-MATH ((\"\" . \"go\")) \"abc\"))"},
	})
}

func TestVerbatimComment(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"%%%\n%%%", "()"},
		{"%%%\nabc\n%%%", "(BLOCK (VERBATIM-COMMENT () \"abc\"))"},
		{"%%%%go\nabc\n%%%%", "(BLOCK (VERBATIM-COMMENT ((\"\" . \"go\")) \"abc\"))"},
	})
}

func TestPara(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"a\n\nb", "(BLOCK (PARA (TEXT \"a\")) (PARA (TEXT \"b\")))"},
		{"a\n \nb", "(BLOCK (PARA (TEXT \"a\")) (PARA (TEXT \"b\")))"},
	})
}

func TestSpanRegion(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{":::\n:::", "()"},
		{":::\nabc\n:::", "(BLOCK (REGION-BLOCK () ((PARA (TEXT \"abc\")))))"},
		{":::\nabc\n::::", "(BLOCK (REGION-BLOCK () ((PARA (TEXT \"abc\")))))"},
		{"::::\nabc\n::::", "(BLOCK (REGION-BLOCK () ((PARA (TEXT \"abc\")))))"},
		{"::::\nabc\n:::\ndef\n:::\n::::", "(BLOCK (REGION-BLOCK () ((PARA (TEXT \"abc\")) (REGION-BLOCK () ((PARA (TEXT \"def\")))))))"},
		{":::{go}\n:::a", "(BLOCK (REGION-BLOCK ((\"go\" . \"\")) () (TEXT \"a\")))"},
		{":::\nabc\n::: def ", "(BLOCK (REGION-BLOCK () ((PARA (TEXT \"abc\"))) (TEXT \"def\")))"},
	})
}

func TestQuoteRegion(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"<<<\n<<<", "()"},
		{"<<<\nabc\n<<<", "(BLOCK (REGION-QUOTE () ((PARA (TEXT \"abc\")))))"},
		{"<<<\nabc\n<<<<", "(BLOCK (REGION-QUOTE () ((PARA (TEXT \"abc\")))))"},
		{"<<<<\nabc\n<<<<", "(BLOCK (REGION-QUOTE () ((PARA (TEXT \"abc\")))))"},
		{"<<<<\nabc\n<<<\ndef\n<<<\n<<<<", "(BLOCK (REGION-QUOTE () ((PARA (TEXT \"abc\")) (REGION-QUOTE () ((PARA (TEXT \"def\")))))))"},
		{"<<<go\n<<< a", "(BLOCK (REGION-QUOTE ((\"\" . \"go\")) () (TEXT \"a\")))"},
		{"<<<\nabc\n<<< def ", "(BLOCK (REGION-QUOTE () ((PARA (TEXT \"abc\"))) (TEXT \"def\")))"},
	})
}

func TestVerseRegion(t *testing.T) {
	t.Parallel()
	checkTcs(t, replace("\"", nil, TestCases{
		{"$$$\n$$$", "()"},
		{"$$$\nabc\n$$$", "(BLOCK (REGION-VERSE () ((PARA (TEXT \"abc\")))))"},
		{"$$$\nabc\n$$$$", "(BLOCK (REGION-VERSE () ((PARA (TEXT \"abc\")))))"},
		{"$$$$\nabc\n$$$$", "(BLOCK (REGION-VERSE () ((PARA (TEXT \"abc\")))))"},
		{"$$$\nabc\ndef\n$$$", "(BLOCK (REGION-VERSE () ((PARA (TEXT \"abc\") (HARD) (TEXT \"def\")))))"},
		{"$$$$\nabc\n$$$\ndef\n$$$\n$$$$", "(BLOCK (REGION-VERSE () ((PARA (TEXT \"abc\")) (REGION-VERSE () ((PARA (TEXT \"def\")))))))"},
		{"$$$go\n$$$x", "(BLOCK (REGION-VERSE ((\"\" . \"go\")) () (TEXT \"x\")))"},
		{"$$$\nabc\n$$$ def ", "(BLOCK (REGION-VERSE () ((PARA (TEXT \"abc\"))) (TEXT \"def\")))"},








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		{"E: &amp;,&#63;;&#x63;.", "(BLOCK (PARA (TEXT \"E: &,?;c.\")))"},
	})
}

func TestVerbatimZettel(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"@@@\n@@@", "(BLOCK)"},
		{"@@@\nabc\n@@@", "(BLOCK (VERBATIM-ZETTEL () \"abc\"))"},
		{"@@@@def\nabc\n@@@@", "(BLOCK (VERBATIM-ZETTEL ((\"\" . \"def\")) \"abc\"))"},
	})
}

func TestVerbatimCode(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"```\n```", "(BLOCK)"},
		{"```\nabc\n```", "(BLOCK (VERBATIM-CODE () \"abc\"))"},
		{"```\nabc\n````", "(BLOCK (VERBATIM-CODE () \"abc\"))"},
		{"````\nabc\n````", "(BLOCK (VERBATIM-CODE () \"abc\"))"},
		{"````\nabc\n```\n````", "(BLOCK (VERBATIM-CODE () \"abc\\n```\"))"},
		{"````go\nabc\n````", "(BLOCK (VERBATIM-CODE ((\"\" . \"go\")) \"abc\"))"},
	})
}

func TestVerbatimEval(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"~~~\n~~~", "(BLOCK)"},
		{"~~~\nabc\n~~~", "(BLOCK (VERBATIM-EVAL () \"abc\"))"},
		{"~~~\nabc\n~~~~", "(BLOCK (VERBATIM-EVAL () \"abc\"))"},
		{"~~~~\nabc\n~~~~", "(BLOCK (VERBATIM-EVAL () \"abc\"))"},
		{"~~~~\nabc\n~~~\n~~~~", "(BLOCK (VERBATIM-EVAL () \"abc\\n~~~\"))"},
		{"~~~~go\nabc\n~~~~", "(BLOCK (VERBATIM-EVAL ((\"\" . \"go\")) \"abc\"))"},
	})
}

func TestVerbatimMath(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"$$$\n$$$", "(BLOCK)"},
		{"$$$\nabc\n$$$", "(BLOCK (VERBATIM-MATH () \"abc\"))"},
		{"$$$\nabc\n$$$$", "(BLOCK (VERBATIM-MATH () \"abc\"))"},
		{"$$$$\nabc\n$$$$", "(BLOCK (VERBATIM-MATH () \"abc\"))"},
		{"$$$$\nabc\n$$$\n$$$$", "(BLOCK (VERBATIM-MATH () \"abc\\n$$$\"))"},
		{"$$$$go\nabc\n$$$$", "(BLOCK (VERBATIM-MATH ((\"\" . \"go\")) \"abc\"))"},
	})
}

func TestVerbatimComment(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"%%%\n%%%", "(BLOCK)"},
		{"%%%\nabc\n%%%", "(BLOCK (VERBATIM-COMMENT () \"abc\"))"},
		{"%%%%go\nabc\n%%%%", "(BLOCK (VERBATIM-COMMENT ((\"\" . \"go\")) \"abc\"))"},
	})
}

func TestPara(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"a\n\nb", "(BLOCK (PARA (TEXT \"a\")) (PARA (TEXT \"b\")))"},
		{"a\n \nb", "(BLOCK (PARA (TEXT \"a\")) (PARA (TEXT \"b\")))"},
	})
}

func TestSpanRegion(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{":::\n:::", "(BLOCK)"},
		{":::\nabc\n:::", "(BLOCK (REGION-BLOCK () ((PARA (TEXT \"abc\")))))"},
		{":::\nabc\n::::", "(BLOCK (REGION-BLOCK () ((PARA (TEXT \"abc\")))))"},
		{"::::\nabc\n::::", "(BLOCK (REGION-BLOCK () ((PARA (TEXT \"abc\")))))"},
		{"::::\nabc\n:::\ndef\n:::\n::::", "(BLOCK (REGION-BLOCK () ((PARA (TEXT \"abc\")) (REGION-BLOCK () ((PARA (TEXT \"def\")))))))"},
		{":::{go}\n:::a", "(BLOCK (REGION-BLOCK ((\"go\" . \"\")) () (TEXT \"a\")))"},
		{":::\nabc\n::: def ", "(BLOCK (REGION-BLOCK () ((PARA (TEXT \"abc\"))) (TEXT \"def\")))"},
	})
}

func TestQuoteRegion(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"<<<\n<<<", "(BLOCK)"},
		{"<<<\nabc\n<<<", "(BLOCK (REGION-QUOTE () ((PARA (TEXT \"abc\")))))"},
		{"<<<\nabc\n<<<<", "(BLOCK (REGION-QUOTE () ((PARA (TEXT \"abc\")))))"},
		{"<<<<\nabc\n<<<<", "(BLOCK (REGION-QUOTE () ((PARA (TEXT \"abc\")))))"},
		{"<<<<\nabc\n<<<\ndef\n<<<\n<<<<", "(BLOCK (REGION-QUOTE () ((PARA (TEXT \"abc\")) (REGION-QUOTE () ((PARA (TEXT \"def\")))))))"},
		{"<<<go\n<<< a", "(BLOCK (REGION-QUOTE ((\"\" . \"go\")) () (TEXT \"a\")))"},
		{"<<<\nabc\n<<< def ", "(BLOCK (REGION-QUOTE () ((PARA (TEXT \"abc\"))) (TEXT \"def\")))"},
	})
}

func TestVerseRegion(t *testing.T) {
	t.Parallel()
	checkTcs(t, replace("\"", nil, TestCases{
		{"$$$\n$$$", "(BLOCK)"},
		{"$$$\nabc\n$$$", "(BLOCK (REGION-VERSE () ((PARA (TEXT \"abc\")))))"},
		{"$$$\nabc\n$$$$", "(BLOCK (REGION-VERSE () ((PARA (TEXT \"abc\")))))"},
		{"$$$$\nabc\n$$$$", "(BLOCK (REGION-VERSE () ((PARA (TEXT \"abc\")))))"},
		{"$$$\nabc\ndef\n$$$", "(BLOCK (REGION-VERSE () ((PARA (TEXT \"abc\") (HARD) (TEXT \"def\")))))"},
		{"$$$$\nabc\n$$$\ndef\n$$$\n$$$$", "(BLOCK (REGION-VERSE () ((PARA (TEXT \"abc\")) (REGION-VERSE () ((PARA (TEXT \"def\")))))))"},
		{"$$$go\n$$$x", "(BLOCK (REGION-VERSE ((\"\" . \"go\")) () (TEXT \"x\")))"},
		{"$$$\nabc\n$$$ def ", "(BLOCK (REGION-VERSE () ((PARA (TEXT \"abc\"))) (TEXT \"def\")))"},
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		{"; abc\n: def\n\n  ghi\n\n  jkl", "(BLOCK (DESCRIPTION () ((TEXT \"abc\")) (BLOCK (BLOCK (PARA (TEXT \"def\")) (PARA (TEXT \"ghi\")) (PARA (TEXT \"jkl\"))))))"},
		{"; abc\n:", "(BLOCK (DESCRIPTION () ((TEXT \"abc\"))) (PARA (TEXT \":\")))"},
		{"; abc\n: def\n: ghi", "(BLOCK (DESCRIPTION () ((TEXT \"abc\")) (BLOCK (BLOCK (PARA (TEXT \"def\"))) (BLOCK (PARA (TEXT \"ghi\"))))))"},
		{"; abc\n: def\n; ghi\n: jkl", "(BLOCK (DESCRIPTION () ((TEXT \"abc\")) (BLOCK (BLOCK (PARA (TEXT \"def\")))) ((TEXT \"ghi\")) (BLOCK (BLOCK (PARA (TEXT \"jkl\"))))))"},

		// Empty description
		{"; abc\n: ", "(BLOCK (DESCRIPTION () ((TEXT \"abc\"))) (PARA (TEXT \":\")))"},

		// Empty continuation of definition
		{"; abc\n: def\n  ", "(BLOCK (DESCRIPTION () ((TEXT \"abc\")) (BLOCK (BLOCK (PARA (TEXT \"def\"))))))"},
	})
}

func TestTable(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"|", "()"},
		{"||", "(BLOCK (TABLE () ((CELL ()))))"},
		{"| |", "(BLOCK (TABLE () ((CELL ()))))"},
		{"|a", "(BLOCK (TABLE () ((CELL () (TEXT \"a\")))))"},
		{"|a|", "(BLOCK (TABLE () ((CELL () (TEXT \"a\")))))"},
		{"|a| ", "(BLOCK (TABLE () ((CELL () (TEXT \"a\")) (CELL ()))))"},
		{"|a|b", "(BLOCK (TABLE () ((CELL () (TEXT \"a\")) (CELL () (TEXT \"b\")))))"},
		{"|a\n|b", "(BLOCK (TABLE () ((CELL () (TEXT \"a\"))) ((CELL () (TEXT \"b\")))))"},
		{"|a|b\n|c|d", "(BLOCK (TABLE () ((CELL () (TEXT \"a\")) (CELL () (TEXT \"b\"))) ((CELL () (TEXT \"c\")) (CELL () (TEXT \"d\")))))"},
		{"|%", "()"},
		{"|=a", "(BLOCK (TABLE ((CELL () (TEXT \"a\")))))"},
		{"|=a\n|b", "(BLOCK (TABLE ((CELL () (TEXT \"a\"))) ((CELL () (TEXT \"b\")))))"},
		{"|a|b\n|%---\n|c|d", "(BLOCK (TABLE () ((CELL () (TEXT \"a\")) (CELL () (TEXT \"b\"))) ((CELL () (TEXT \"c\")) (CELL () (TEXT \"d\")))))"},
		{"|a|b\n|c", "(BLOCK (TABLE () ((CELL () (TEXT \"a\")) (CELL () (TEXT \"b\"))) ((CELL () (TEXT \"c\")) (CELL ()))))"},
		{"|=<a>\n|b|c", "(BLOCK (TABLE ((CELL ((align . \"left\")) (TEXT \"a\")) (CELL ())) ((CELL ((align . \"right\")) (TEXT \"b\")) (CELL () (TEXT \"c\")))))"},
		{"|=<a|=b>\n||", "(BLOCK (TABLE ((CELL ((align . \"left\")) (TEXT \"a\")) (CELL ((align . \"right\")) (TEXT \"b\"))) ((CELL ()) (CELL ((align . \"right\"))))))"},
	})
}

func TestTransclude(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"{{{a}}}", "(BLOCK (TRANSCLUDE () (HOSTED \"a\")))"},








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		{"; abc\n: def\n\n  ghi\n\n  jkl", "(BLOCK (DESCRIPTION () ((TEXT \"abc\")) (BLOCK (BLOCK (PARA (TEXT \"def\")) (PARA (TEXT \"ghi\")) (PARA (TEXT \"jkl\"))))))"},
		{"; abc\n:", "(BLOCK (DESCRIPTION () ((TEXT \"abc\"))) (PARA (TEXT \":\")))"},
		{"; abc\n: def\n: ghi", "(BLOCK (DESCRIPTION () ((TEXT \"abc\")) (BLOCK (BLOCK (PARA (TEXT \"def\"))) (BLOCK (PARA (TEXT \"ghi\"))))))"},
		{"; abc\n: def\n; ghi\n: jkl", "(BLOCK (DESCRIPTION () ((TEXT \"abc\")) (BLOCK (BLOCK (PARA (TEXT \"def\")))) ((TEXT \"ghi\")) (BLOCK (BLOCK (PARA (TEXT \"jkl\"))))))"},

		// Empty description
		{"; abc\n: ", "(BLOCK (DESCRIPTION () ((TEXT \"abc\"))) (PARA (TEXT \":\")))"},
		{"; abc\n; def\n: ghi", "(BLOCK (DESCRIPTION () ((TEXT \"abc\")) (BLOCK) ((TEXT \"def\")) (BLOCK (BLOCK (PARA (TEXT \"ghi\"))))))"},
		// Empty continuation of definition
		{"; abc\n: def\n  ", "(BLOCK (DESCRIPTION () ((TEXT \"abc\")) (BLOCK (BLOCK (PARA (TEXT \"def\"))))))"},
	})
}

func TestTable(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"|", "(BLOCK)"},
		{"||", "(BLOCK (TABLE () () ((CELL ()))))"},
		{"| |", "(BLOCK (TABLE () () ((CELL ()))))"},
		{"|a", "(BLOCK (TABLE () () ((CELL () (TEXT \"a\")))))"},
		{"|a|", "(BLOCK (TABLE () () ((CELL () (TEXT \"a\")))))"},
		{"|a| ", "(BLOCK (TABLE () () ((CELL () (TEXT \"a\")) (CELL ()))))"},
		{"|a|b", "(BLOCK (TABLE () () ((CELL () (TEXT \"a\")) (CELL () (TEXT \"b\")))))"},
		{"|a\n|b", "(BLOCK (TABLE () () ((CELL () (TEXT \"a\"))) ((CELL () (TEXT \"b\")))))"},
		{"|a|b\n|c|d", "(BLOCK (TABLE () () ((CELL () (TEXT \"a\")) (CELL () (TEXT \"b\"))) ((CELL () (TEXT \"c\")) (CELL () (TEXT \"d\")))))"},
		{"|%", "(BLOCK)"},
		{"|=a", "(BLOCK (TABLE () ((CELL () (TEXT \"a\")))))"},
		{"|=a\n|b", "(BLOCK (TABLE () ((CELL () (TEXT \"a\"))) ((CELL () (TEXT \"b\")))))"},
		{"|a|b\n|%---\n|c|d", "(BLOCK (TABLE () () ((CELL () (TEXT \"a\")) (CELL () (TEXT \"b\"))) ((CELL () (TEXT \"c\")) (CELL () (TEXT \"d\")))))"},
		{"|a|b\n|c", "(BLOCK (TABLE () () ((CELL () (TEXT \"a\")) (CELL () (TEXT \"b\"))) ((CELL () (TEXT \"c\")) (CELL ()))))"},
		{"|=<a>\n|b|c", "(BLOCK (TABLE () ((CELL ((align . \"left\")) (TEXT \"a\")) (CELL ())) ((CELL ((align . \"right\")) (TEXT \"b\")) (CELL () (TEXT \"c\")))))"},
		{"|=<a|=b>\n||", "(BLOCK (TABLE () ((CELL ((align . \"left\")) (TEXT \"a\")) (CELL ((align . \"right\")) (TEXT \"b\"))) ((CELL ()) (CELL ((align . \"right\"))))))"},
	})
}

func TestTransclude(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"{{{a}}}", "(BLOCK (TRANSCLUDE () (HOSTED \"a\")))"},
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		{"::a::{.go .py}", "(BLOCK (PARA (FORMAT-SPAN ((\"class\" . \"go py\")) (TEXT \"a\"))))"},
	})
}

func TestTemp(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"", "()"},
	})
}








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		{"::a::{.go .py}", "(BLOCK (PARA (FORMAT-SPAN ((\"class\" . \"go py\")) (TEXT \"a\"))))"},
	})
}

func TestTemp(t *testing.T) {
	t.Parallel()
	checkTcs(t, TestCases{
		{"", "(BLOCK)"},
	})
}