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# http://daringfireball.net/projects/markdown
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
# Detection
# ‾‾‾‾‾‾‾‾‾
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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
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
hook global WinSetOption filetype=markdown %{
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require-module markdown
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hook window ModeChange pop:insert:.* -group markdown-trim-indent markdown-trim-indent
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hook window InsertChar \n -group markdown-insert markdown-insert-on-new-line
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hook window InsertChar \n -group markdown-indent markdown-indent-on-new-line
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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markdown-load-languages '%'
}
hook -group markdown-load-languages global WinSetOption filetype=markdown %{
hook -group markdown-load-languages window NormalIdle .* %{markdown-load-languages gtGbGl}
hook -group markdown-load-languages window InsertIdle .* %{markdown-load-languages gtGbGl}
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}
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hook -group markdown-highlight global WinSetOption filetype=markdown %{
add-highlighter window/markdown ref markdown
hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/markdown }
}
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provide-module markdown %{
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# Highlighters
# ‾‾‾‾‾‾‾‾‾‾‾‾
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add-highlighter shared/markdown regions
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add-highlighter shared/markdown/inline default-region regions
add-highlighter shared/markdown/inline/text default-region group
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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
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add-highlighter shared/markdown/codeblock region -match-capture \
^(\h*)```\h* \
^(\h*)```\h*$ \
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regions
add-highlighter shared/markdown/codeblock/ default-region fill meta
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add-highlighter shared/markdown/listblock/codeblock region -match-capture \
^(\h*)```\h* \
^(\h*)```\h*$ \
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regions
add-highlighter shared/markdown/listblock/codeblock/ default-region fill meta
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add-highlighter shared/markdown/codeline region "^( {4}|\t)" "$" fill meta
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# https://spec.commonmark.org/0.29/#link-destination
add-highlighter shared/markdown/angle_bracket_url region (?<=<)([a-z]+://|(mailto|magnet|xmpp):) (?!\\).(?=>)|\n fill link
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add-highlighter shared/markdown/inline/url region -recurse \( ([a-z]+://|(mailto|magnet|xmpp):) (?!\\).(?=\))|\s fill link
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add-highlighter shared/markdown/listblock/angle_bracket_url region (?<=<)([a-z]+://|(mailto|magnet|xmpp):) (?!\\).(?=>)|\n fill link
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try %{
require-module html
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add-highlighter shared/markdown/inline/tag region (?i)</?[a-z][a-z0-9-]*\s*([a-z_:]|(?=>)) > ref html/tag
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}
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add-highlighter shared/markdown/inline/code region -match-capture (`+) (`+) fill mono
markdown.kak: Clean up code-block and code-span formatting.
Previously, a code block was anything between triple-backtics, including inline
blocks:
some text ```
not a codeblock, but highlighted as one
``` other text
and even if the closing backticks had the wrong indent:
```
this is a code block containing a triple backtick
```
this is still a code block, but Kakoune thinks otherwise
```
Now we use the -match-capture flag to ensure the start and end fences have
exactly the same indent.
Previously, the generic code-block region was defined first, which meant that
it took priority over all the language-specific highlighters. Now we define
the generic code-block highlighting *after* the others, which fixes #2304.
Previously, code-spans were defined as ordinary inline markup, but in Markdown
ordinary formatting doesn't work inside code-spans. Therefore, they are now
regions unto themselves, defined according to section 6.3 of the CommonMark
spec <https://spec.commonmark.org/0.28/#code-spans>, which addresses a comment
on #2111.
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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
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
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
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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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# Commands
# ‾‾‾‾‾‾‾‾
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define-command markdown-load-languages -params 1 %{
evaluate-commands -draft %{ try %{
execute-keys "%arg{1}s```\h*\{?[.=]?\K\w+<ret>" # }
evaluate-commands -itersel %{ try %{
require-module %val{selection}
add-highlighter "shared/markdown/codeblock/%val{selection}" region -match-capture "^(\h*)```\h*(%val{selection}\b|\{[.=]?%val{selection}\})" ^(\h*)``` regions
add-highlighter "shared/markdown/codeblock/%val{selection}/" default-region fill meta
add-highlighter "shared/markdown/codeblock/%val{selection}/inner" region \A\h*```[^\n]*\K (?=```) ref %val{selection}
add-highlighter "shared/markdown/listblock/codeblock/%val{selection}" region -match-capture "^(\h*)```\h*(%val{selection}\b|\{[.=]?%val{selection}\})" ^(\h*)``` regions
add-highlighter "shared/markdown/listblock/codeblock/%val{selection}/" default-region fill meta
add-highlighter "shared/markdown/listblock/codeblock/%val{selection}/inner" region \A\h*```[^\n]*\K (?=```) ref %val{selection}
}}
}}
}
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define-command -hidden markdown-trim-indent %{
evaluate-commands -no-hooks -draft -itersel %{
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execute-keys x
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# remove trailing white spaces
try %{ execute-keys -draft s \h + $ <ret> d }
}
}
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define-command -hidden markdown-insert-on-new-line %{
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try %{ execute-keys -draft -itersel k x s ^\h*\K((>\h*)+([*+-]\h)?|(>\h*)*[*+-]\h)\h* <ret> y gh j P }
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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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# 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 k x s \h+$ <ret> d }
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}
}
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}