title: Zettelmarkup: Mark role: manual tags: #manual #zettelmarkup #zettelstore syntax: zmk back: 00001007030200 00001007040300 backward: 00001007030200 00001007040300 00001007040324 box-number: 1 copyright: (c) 2020-present by Detlef Stern created: 20210810155955 forward: 00001007040000 00001007040310 00001007040324 lang: en license: EUPL-1.2-or-later modified: 20220218133206 published: 20220218133206 visibility: public A mark allows to name a point within a zettel. This is useful if you want to reference some content in a zettel, either with a [link](00001007040310) or with an [inline-mode transclusion](00001007040324). A mark begins with a left square bracket, followed by an exclamation mark character (“`!`”, U+0021). Now the optional mark name follows. It is a (possibly empty) sequence of Unicode letters, Unicode digits, the hyphen-minus character (“`-`”, U+002D), or the low-line character (“`_`”, U+005F). An optional text to be explicitly marked is introduced with a vertical bar character (“`|`”, U+007C), followed by some [inline-structured elements](00001007040000). The mark element ends with a right square bracket. Examples: * `[!]` is a mark without a name, the empty mark. * `[!mark]` is a mark with the name “mark”. * `[!|some text]`is the empty mark with “some text”. * `[!mark|some text]`is a mark with the name “mark” and with “some text” that is marked.