home/rc/filetype/markdown.kak
Lennard Hofmann 55b2b8c88d rc markdown: Fix fenced code blocks
The closing ``` in the following example was not detected because the
indented code block highlighter was higher up in the hierarchy than the
fenced code block highlighter:

```
    indented
```

The codeblock highlighter used to be inline so that it has an effect
inside listblocks. This commits adds a listblock/codeblock highlighter
as a replacement.

Fixes #4351
2021-09-27 17:34:31 +02:00

123 lines
5.0 KiB
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# http://daringfireball.net/projects/markdown
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
# Detection
# ‾‾‾‾‾‾‾‾‾
hook global BufCreate .*[.](markdown|md|mkd) %{
set-option buffer filetype markdown
}
# Initialization
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
hook global WinSetOption filetype=markdown %{
require-module markdown
hook window InsertChar \n -group markdown-insert markdown-insert-on-new-line
hook window InsertChar \n -group markdown-indent markdown-indent-on-new-line
hook -once -always window WinSetOption filetype=.* %{ remove-hooks window markdown-.+ }
}
hook -group markdown-load-languages global WinSetOption filetype=markdown %{
hook -group markdown-load-languages window NormalIdle .* markdown-load-languages
hook -group markdown-load-languages window InsertIdle .* markdown-load-languages
}
hook -group markdown-highlight global WinSetOption filetype=markdown %{
add-highlighter window/markdown ref markdown
hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/markdown }
}
provide-module markdown %{
# Highlighters
# ‾‾‾‾‾‾‾‾‾‾‾‾
add-highlighter shared/markdown regions
add-highlighter shared/markdown/inline default-region regions
add-highlighter shared/markdown/inline/text default-region group
evaluate-commands %sh{
languages="
awk c cabal clojure coffee cpp crystal css cucumber d diff dockerfile fish
gas go haml haskell html ini java javascript json julia kak kickstart
latex lisp lua makefile markdown moon objc perl pug python ragel
ruby rust sass scala scss sh swift toml tupfile typescript yaml sql
"
for lang in ${languages}; do
printf 'add-highlighter shared/markdown/%s region -match-capture ^(\h*)```\h*(%s\\b|\\{[.=]?%s\\}) ^(\h*)``` regions\n' "${lang}" "${lang}" "${lang}"
printf 'add-highlighter shared/markdown/%s/ default-region fill meta\n' "${lang}"
[ "${lang}" = kak ] && ref=kakrc || ref="${lang}"
printf 'add-highlighter shared/markdown/%s/inner region \A```[^\\n]*\K (?=```) ref %s\n' "${lang}" "${ref}"
done
}
add-highlighter shared/markdown/listblock region ^\h*[-*]\s ^(?=\S) regions
add-highlighter shared/markdown/listblock/g default-region group
add-highlighter shared/markdown/listblock/g/ ref markdown/inline
add-highlighter shared/markdown/listblock/g/marker regex ^\h*([-*])\s 1:bullet
add-highlighter shared/markdown/codeblock region -match-capture \
^(\h*)```\h* \
^(\h*)```\h*$ \
fill meta
add-highlighter shared/markdown/listblock/codeblock region -match-capture \
^(\h*)```\h* \
^(\h*)```\h*$ \
fill meta
add-highlighter shared/markdown/codeline region "^( {4}|\t)" "$" fill meta
# https://spec.commonmark.org/0.29/#link-destination
add-highlighter shared/markdown/angle_bracket_url region (?<=<)([a-z]+://|(mailto|magnet|xmpp):) (?!\\).(?=>)|\n fill link
add-highlighter shared/markdown/inline/url region -recurse \( ([a-z]+://|(mailto|magnet|xmpp):) (?!\\).(?=\))|\s fill link
add-highlighter shared/markdown/listblock/angle_bracket_url region (?<=<)([a-z]+://|(mailto|magnet|xmpp):) (?!\\).(?=>)|\n fill link
try %{
require-module html
add-highlighter shared/markdown/inline/tag region (?i)</?[a-z][a-z0-9-]*\s*([a-z_:]|(?=>)) > ref html/tag
}
add-highlighter shared/markdown/inline/code region -match-capture (`+) (`+) fill mono
# Setext-style header
add-highlighter shared/markdown/inline/text/ regex (\A|^\n)[^\n]+\n={2,}\h*\n\h*$ 0:title
add-highlighter shared/markdown/inline/text/ regex (\A|^\n)[^\n]+\n-{2,}\h*\n\h*$ 0:header
# Atx-style header
add-highlighter shared/markdown/inline/text/ regex ^#[^\n]* 0:header
add-highlighter shared/markdown/inline/text/ regex (?<!\*)(\*([^\s*]|([^\s*](\n?[^\n*])*[^\s*]))\*)(?!\*) 1:+i
add-highlighter shared/markdown/inline/text/ regex (?<!_)(_([^\s_]|([^\s_](\n?[^\n_])*[^\s_]))_)(?!_) 1:+i
add-highlighter shared/markdown/inline/text/ regex (?<!\*)(\*\*([^\s*]|([^\s*](\n?[^\n*])*[^\s*]))\*\*)(?!\*) 1:+b
add-highlighter shared/markdown/inline/text/ regex (?<!_)(__([^\s_]|([^\s_](\n?[^\n_])*[^\s_]))__)(?!_) 1:+b
add-highlighter shared/markdown/inline/text/ regex ^\h*(>\h*)+ 0:comment
add-highlighter shared/markdown/inline/text/ regex "\H( {2,})$" 1:+r@meta
# Commands
# ‾‾‾‾‾‾‾‾
define-command -hidden markdown-insert-on-new-line %{
try %{ execute-keys -draft -itersel k <a-x> s ^\h*\K((>\h*)+([*+-]\h)?|(>\h*)*[*+-]\h)\h* <ret> y gh j P }
}
define-command -hidden markdown-indent-on-new-line %{
evaluate-commands -draft -itersel %{
# preserve previous line indent
try %{ execute-keys -draft <semicolon> K <a-&> }
# remove trailing white spaces
try %{ execute-keys -draft k <a-x> s \h+$ <ret> d }
}
}
define-command -hidden markdown-load-languages %{
evaluate-commands -draft %{ try %{
execute-keys 'gtGbGls```\h*\{?[.=]?\K[^}\s]+<ret>'
evaluate-commands -itersel %{ require-module %val{selection} }
}}
}
}