<!--
-SPDX-FileCopyrightText: 2024 Lady <https://www.ladys.computer/about/#lady>
+SPDX-FileCopyrightText: 2024, 2025 Lady <https://www.ladys.computer/about/#lady>
SPDX-License-Identifier: CC0-1.0
-->
# 💄📝 Les·M·L
The body of the document begins after the last line which begins with
the string `%%`, or after the shebang line if none exists.
+Multiple documents can be catenated into a single file; a new document
+ is begun on any line which starts with `#!lesml` or `##`.
+Documents in the later case inherit the latest preceding `#!lesml`
+ declaration.
+`##` may be followed by other text; this is treated as an interdocument
+ comment.
+
Documents are broken into paragraphs by blank lines.
Empty paragraphs are ignored.
+
+If every line in the paragraph begins with (optional white·space
+ followed by) `»` it is quoted (`<html:blockquote>`); if every line
+ begins with `]` it is bracketed.
+The lines, minus this leading, are then re‐analysed.
+Bracketed paragraphs which end quotes are treated as captions
+ (`<html:figcaption>`); otherwise, they are footers (`<html:footer>`).
+
Non·empty paragraphs are classified as follows :—
- If the paragraph consists of only the following section‐break
| Character | Codepoint | Unicode Name |
| --------- | --------- | ------------ |
- | `#` | `U+0023` | `NUMBER SIGN` |
| `*` | `U+002A` | `ASTERISK` |
| `-` | `U+002D` | `HYPHEN-MINUS` |
| `.` | `U+002E` | `FULL STOP` |
| `＿` | `U+FF3F` | `FULLWIDTH LOW LINE` |
| `～` | `U+FF5E` | `FULLWIDTH TILDE` |
-- If every line in the paragraph begins with at least one space, then
- it is considered to be a quoted paragraph (`<html:blockquote>`).
- There is only one level of paragraph quoting; quoted paragraphs may
- not be quoted again.
+- If every line in the paragraph begins with zero or more white·space
+ characters followed by `|`, it is a “preformatted” paragraph and
+ white·space is not collapsed (`<html:pre>`).
-- Otherwise, the paragraph is unquoted.
+- Otherwise, the paragraph is ordinary.
-After this classification, each quoted or unquoted paragraph is further
+After this classification, each ordinary paragraph is further
classified by type based on its first character (which is must be
- followed by white·space to be recognized) :—
+ followed by white·space, a pilcrow, or else the only thing on the
+ line) :—
+
+- If the paragraph is preformatted, it is an ordinary paragraph.
- If the paragraph begins with `⁌`, it is a chapter heading
(`<html:h1>`).
- If the paragraph begins with `⚠︎`, it is a warning note
(`<html:div role="note" class="warn">`).
-- If the paragraph begins with `⋯`, it is a continuation paragraph
- (`<html:div class="continuation">`).
- Continuation paragraphs may be used to continue a preceding list item
- or quote.
- Note, however, that an unquoted paragraph cannot continue a quoted
- one, or vice·versa.
+- If the paragraph begins with `#`, it is a comment.
+ Comments produce X·M·L comment nodes and can be used to break up list
+ items into separate lists.
+
+- If the paragraph begins with `⋯`, it is a continuation paragraph.
+ Continuation paragraphs may be used to continue a preceding div or
+ list item.
+ If there is no such preceding div or list item, they will attach to
+ adjacent heading elements to form heading groups (`<html:hgroup>`).
+ Otherwise, they will be treated as ordinary paragraphs.
- Otherwise, it is an ordinary paragraph.
-Following this sigil (if any, including trailing white·space) there may
- be a `¶` followed by zero or more non·white·space characters.
+Following this sigil (if any) there may be a `¶` followed by zero or
+ more non·white·space characters.
The characters following the `¶` give the identifier for the paragraph,
which is expected to be unique within a document.
+This may be suffixed with a language tag beginning with `@` and
+ terminated with `$`.
The remaining characters in a paragraph form its contents.
Markup within paragraphs is delimited with·out exception by pairs of
characters, with the following precedence :—
+- The characters `⌦` and `⌫` indicate inline comments.
+ A single character `⌧` may be used to indicate an “empty” comment
+ (consisting of `U+034F COMBINING GRAPHEME JOINER` for X·M·L
+ compatibility).
+
+- The characters `{@` and `"}` indicate attribute specifications.
+ The attribute specification must contain at least one `="` which
+ separates the key of the attribute from the value.
+ Attributes attach to the previous element or text node, with
+ white·space‐only text nodes after elements ignored; if there is no
+ such previous element or text node, an empty text node is used
+ instead.
+ Multiple attributes can be given in sequence using multiple
+ specifications.
+ Text nodes with attributes are wrapped in `<html:span>`.
+
- The characters `{🔗` and `>}` indicate a hyperlink to a U·R·L
(`<html:a>`).
The hyperlink must contain at least one `<`; the content before the
- The characters `⸨` and `⸩` indicate parenthetical content
(`<html:small>`).
-- The characters `☞︎` and `☜︎` indicate strong importance
- (`<html:strong>`).
-
-- The characters `⹐` and `⹑` indicate emphasis (`<html:em>`).
+- The characters `` ` `` and `´` indicate code (`<html:code>`).
- The characters `⟪` and `⟫` indicate titles (`<html:cite>`).
+- The characters `⸶` and `⸷` indicate names (`<html:u class="name">`).
+
- The characters `⟨` and `⟩` indicate offset text (`<html:i>`).
- This may be followed by a `@`, a language tag, and a `$` to provide
- the language of the text.
- The characters `⦃` and `⦄` indicate keyword highlighting
(`<html:b>`).
-- The characters `` ` `` and `´` indicate code (`<html:code>`).
+- The characters `☞︎` and `☜︎` indicate strong importance
+ (`<html:strong>`).
+
+- The characters `⹐` and `⹑` indicate emphasis (`<html:em>`).
Once the tree is built as above, it is remediated into its final form
by the following steps :—
-- Successive quoted paragraphs are joined into one quote.
- If the final quoted paragraph is an ordinary paragraph which begins
- with `—` and a space, the quote is wrapped in a `<html:figure>`
- and the final paragraph becomes its `<html:figcaption>`.
-
- Continuation paragraphs are joined with the preceding list items or
- quotes.
+ divs.
- List items of a higher level are nested in preceding list items, when
present.
- Successive list items of the same level and class are joined into
a single list.
+- Linebreaks in preformatted paragraphs are replaced with `<html:br>`.
+
Finally, any character can be escaped by instead providing its Unicode
- codepoint in the form `<U+NNNN>`, where `NNNN` is one or more
+ codepoint in the form `{U+NNNN}`, where `NNNN` is one or more
hexadecimal digits.
Multiple codepoints may be provided separated by periods, as in
- `<U+WWWW.ZZZZ>`
+ `{U+WWWW.ZZZZ}`.
+Due to limitations in X·S·L·T, characters cannot be escaped in
+ attributes (including link targets).
## Usage
Lady’s Gitweb / LesML / blobdiff