a49b1c4996
This highlighter (line 50 of markdown.kak) looks for the filetype
specified by the author at the top of the code fence, e.g.
``` python
print("hello")
```
and highlights the code within using Kakoune's relevant highlighter --
in this case Python.
Some flavours of markdown use curly braces and other characters in the
first line such as the following:
``` {=python}
print("hello")
```
Previously Kakoune recognised `{=python}` but not `{.python}`. The latter
is Pandoc's flavour of markdown. This patch adjusts the regex patterns
to recognise the dot notation as well.
109 lines
4.4 KiB
Plaintext
109 lines
4.4 KiB
Plaintext
# http://daringfireball.net/projects/markdown
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# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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# Detection
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# ‾‾‾‾‾‾‾‾‾
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hook global BufCreate .*[.](markdown|md|mkd) %{
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set-option buffer filetype markdown
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}
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# Initialization
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# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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hook global WinSetOption filetype=markdown %{
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require-module markdown
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hook window InsertChar \n -group markdown-indent markdown-indent-on-new-line
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hook -once -always window WinSetOption filetype=.* %{ remove-hooks window markdown-.+ }
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}
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hook -group markdown-load-languages global WinSetOption filetype=markdown %{
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hook -group markdown-load-languages window NormalIdle .* markdown-load-languages
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hook -group markdown-load-languages window InsertIdle .* markdown-load-languages
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}
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hook -group markdown-highlight global WinSetOption filetype=markdown %{
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add-highlighter window/markdown ref markdown
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hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/markdown }
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}
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provide-module markdown %{
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# Highlighters
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# ‾‾‾‾‾‾‾‾‾‾‾‾
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add-highlighter shared/markdown regions
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add-highlighter shared/markdown/inline default-region regions
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add-highlighter shared/markdown/inline/text default-region group
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evaluate-commands %sh{
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languages="
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awk c cabal clojure coffee cpp css cucumber d diff dockerfile fish
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gas go haml haskell html ini java javascript json julia kak kickstart
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latex lisp lua makefile markdown moon objc perl pug python ragel
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ruby rust sass scala scss sh swift toml tupfile typescript yaml sql
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"
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for lang in ${languages}; do
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printf 'add-highlighter shared/markdown/%s region -match-capture ^(\h*)```\h*(%s|\\{[.=]?%s\\}))\\b ^(\h*)``` regions\n' "${lang}" "${lang}" "${lang}"
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printf 'add-highlighter shared/markdown/%s/ default-region fill meta\n' "${lang}"
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[ "${lang}" = kak ] && ref=kakrc || ref="${lang}"
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printf 'add-highlighter shared/markdown/%s/inner region \A```[^\\n]*\K (?=```) ref %s\n' "${lang}" "${ref}"
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done
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}
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add-highlighter shared/markdown/codeblock region -match-capture \
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^(\h*)```\h* \
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^(\h*)```\h*$ \
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fill meta
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add-highlighter shared/markdown/listblock region ^\h*[-*]\s ^\h*((?=[-*])|$) group
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add-highlighter shared/markdown/listblock/ ref markdown/inline
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add-highlighter shared/markdown/listblock/marker regex ^\h*([-*])\s 1:bullet
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add-highlighter shared/markdown/inline/code region -match-capture (`+) (`+) fill mono
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# Setext-style header
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add-highlighter shared/markdown/inline/text/ regex (\A|^\n)[^\n]+\n={2,}\h*\n\h*$ 0:title
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add-highlighter shared/markdown/inline/text/ regex (\A|^\n)[^\n]+\n-{2,}\h*\n\h*$ 0:header
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# Atx-style header
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add-highlighter shared/markdown/inline/text/ regex ^#[^\n]* 0:header
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add-highlighter shared/markdown/inline/text/ regex (?<!\*)(\*([^\s*]|([^\s*](\n?[^\n*])*[^\s*]))\*)(?!\*) 1:+i
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add-highlighter shared/markdown/inline/text/ regex (?<!_)(_([^\s_]|([^\s_](\n?[^\n_])*[^\s_]))_)(?!_) 1:+i
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add-highlighter shared/markdown/inline/text/ regex (?<!\*)(\*\*([^\s*]|([^\s*](\n?[^\n*])*[^\s*]))\*\*)(?!\*) 1:+b
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add-highlighter shared/markdown/inline/text/ regex (?<!_)(__([^\s_]|([^\s_](\n?[^\n_])*[^\s_]))__)(?!_) 1:+b
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add-highlighter shared/markdown/inline/text/ regex <(([a-z]+://.*?)|((mailto:)?[\w+-]+@[a-z]+[.][a-z]+))> 0:link
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add-highlighter shared/markdown/inline/text/ regex ^\[[^\]\n]*\]:\h*([^\n]*) 1:link
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add-highlighter shared/markdown/inline/text/ regex ^\h*(>\h*)+ 0:comment
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add-highlighter shared/markdown/inline/text/ regex "\H( {2,})$" 1:+r@meta
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# Inline code
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add-highlighter shared/markdown/inline/text/ regex "^( {4}|\t)+([^\n]+)" 2:meta
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# Commands
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# ‾‾‾‾‾‾‾‾
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define-command -hidden markdown-indent-on-new-line %{
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evaluate-commands -draft -itersel %{
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# copy block quote(s), list item prefix and following white spaces
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try %{ execute-keys -draft k <a-x> s ^\h*\K((>\h*)+([*+-]\h)?|(>\h*)*[*+-]\h)\h* <ret> y gh j P }
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# preserve previous line indent
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try %{ execute-keys -draft <semicolon> K <a-&> }
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# remove trailing white spaces
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try %{ execute-keys -draft -itersel %{ k<a-x> s \h+$ <ret> d } }
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}
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}
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define-command -hidden markdown-load-languages %{
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evaluate-commands -draft %{ try %{
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execute-keys 'gtGbGls```\h*\{?[.=]?\K[^}\s]+<ret>'
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evaluate-commands -itersel %{ require-module %val{selection} }
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}}
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}
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}
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