Problem:
cb46f6e467 (diff-edf997b0c2d42d31828800641ac1f5a46487fe24a0d46ccf70bcd58a14f3868f)
introduced a regression on how `#set!` behaves with several matches in a
single pattern, breaking conceals in, e.g., taglinks.
Solution: Separate taglink etc. patterns into concealed marker and
contents. Also add URL support for concealed markdown links.
Problem: Allowing undocumented "secret" (sub)captures makes it harder
to write comprehensive colorschemes and catch inconsistent captures.
Solution: Only allow captures listed in CONTRIBUTING.md. Add useful
(cross-language) subcaptures and drop language-specific or too niche
ones.
Follow-up: Adding further `*.builtin` captures and changing queries to
use them.
Language-specific subcaptures should instead be added in user config or
a custom language plugin.
Since 0.9, @lang syntax is still available as fallback but will soon be deprecated.
Because of that, new syntax should be adopted once 0.9 becomes the
baseline requirements for nvim-treesitter
- update health check
- update doc
This change conceals `full_reference_link`, `collapsed_reference_link`,
and `shortcut_link` similarly to the `markdown_inline` query file
already conceals `inline_link` and `image`.
## Test markdown contents
```markdown
Some text before the link [full reference link text][link label] and now some
text after the link onto a new line.
Some text before the link [collapsed reference link text][] and now some text
after the link onto a new line.
Some text before the link [shortcut link text] and now some text after the link
onto a new line.
```
## Test markdown concealed screenshot
Closes#3267
* switch to split markdown parser with separate block and inline parsers to improve performance
* add exclude_children! directive (useful for something like Injected markdown incorrectly highlights indented docstrings #2212)
* split markdown queries into block and inline ones and add the injection for inline into block grammar
* add include_dir option to parser configs (needed because the two grammars don't live in the repos root directory)
BREAKING CHANGE: downstream queries need to be adapted to new parser
