This grammar implements the vimdoc "spec" (ref1, ref2). Predictable results are the primary goal, so that output formats (e.g. HTML) are well-formed; the input (vimdoc) is secondary. The first step should always be to try to fix the input rather than insist on a grammar that handles vimdoc's endless quirks.
block
is the main top-level node, delimited by blank line(s) or any line starting with<
(codeblock terminator).- contains
line
andline_li
nodes.
- contains
line
:- contains atoms (words, tags, taglinks, โฆ)
- contains headings (
h1
,h2
,h3
,column_heading
) becausecodeblock
terminated by "implicit stop" (no terminating<
) consumes blank lines, soblock
has no way to end.
line_li
("list item")- consumes lines until blank line, codeblock, or next listitem.
- nesting is ignored: indented listitems are parsed as siblings.
codeblock
:- contained by
line
orline_li
, because ">" can start a codeblock at the end of any line. - contains
line
nodes withoutword
nodes: it's just the full raw text line including whitespace. This is somewhat dictated by its "preformatted" nature; parsing the contents would require loading a "child" language (injection). See #2. - the terminating
<
(and any following whitespace) is discarded (anonymous).
- contained by
h1
= "Heading 1":======
followed by text and optional*tags*
.h2
= "Heading 2":------
followed by text and optional*tags*
.h3
= "Heading 3": UPPERCASE WORDS, followed by optional*tags*
, followed by atoms.
- Input must end with newline/EOL (
\n
). Grammar does not support files without EOL. - Input must end with a blank line. Though this doesn't seem to matter in practice.
- Spec requires that
codeblock
delimiter ">" must be preceded by a space (" >"), not a tab. But currently the grammar doesn't enforce this. Example::help lcs-tab
. url
doesn't handle surrounding parens. E.g.(https://example.com/#yay)
yieldsword
url
doesn't handle nested parens. E.g.(https://example.com/(foo)#yay)
column_heading
currently only recognizes tilde~
preceded by space (i.e.foo ~
notfoo~
). This covers 99% of :help files.column_heading
children should be plaintext. Currently its children are parsed as$._atom
.
line_modeline
?tag_heading
: line(s) containing only tags, typically implies a "heading" before a block.
Steps to perform a release:
- Bump and tag the version (choose
patch
/minor
/major
as appropriate).npm version patch -m "release %s"
- Bump to prerelease, without creating a tag .
npm version --no-git-tag-version prerelease --preid dev && git add package*.json && git commit -m bump
- Push.
git push --follow-tags
- Release the tagged commit: https://github.com/neovim/tree-sitter-vimdoc/releases/new