84 lines
3.6 KiB
Plaintext
84 lines
3.6 KiB
Plaintext
# Detection
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# ‾‾‾‾‾‾‾‾‾
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hook global BufCreate .*[.](js) %{
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set buffer filetype javascript
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}
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# Highlighters
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# ‾‾‾‾‾‾‾‾‾‾‾‾
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add-highlighter -group / regions -default code javascript \
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double_string '"' (?<!\\)(\\\\)*" '' \
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single_string "'" (?<!\\)(\\\\)*' '' \
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literal "`" (?<!\\)(\\\\)*` '' \
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comment // '$' '' \
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comment /\* \*/ '' \
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regex / (?<!\\)(\\\\)*/[gimuy]* '' \
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division '[\w\)\]](/|(\h+/\h+))' '\w' '' # Help Kakoune to better detect /…/ literals
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# Regular expression flags are: g → global match, i → ignore case, m → multi-lines, u → unicode, y → sticky
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# https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp
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add-highlighter -group /javascript/double_string fill string
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add-highlighter -group /javascript/single_string fill string
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add-highlighter -group /javascript/regex fill meta
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add-highlighter -group /javascript/comment fill comment
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add-highlighter -group /javascript/literal fill string
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add-highlighter -group /javascript/literal regex \${.*?} 0:value
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add-highlighter -group /javascript/code regex \$\w* 0:variable
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add-highlighter -group /javascript/code regex \b(document|false|null|parent|self|this|true|undefined|window)\b 0:value
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add-highlighter -group /javascript/code regex "-?[0-9]*\.?[0-9]+" 0:value
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add-highlighter -group /javascript/code regex \b(Array|Boolean|Date|Function|Number|Object|RegExp|String|Symbol)\b 0:type
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# Keywords are collected at
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# https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Lexical_grammar#Keywords
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add-highlighter -group /javascript/code regex \b(async|await|break|case|catch|class|const|continue|debugger|default|delete|do|else|export|extends|finally|for|function|if|import|in|instanceof|let|new|of|return|super|switch|throw|try|typeof|var|void|while|with|yield)\b 0:keyword
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# Commands
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# ‾‾‾‾‾‾‾‾
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def -hidden javascript-filter-around-selections %{
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# remove trailing white spaces
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try %{ exec -draft -itersel <a-x> s \h+$ <ret> d }
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}
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def -hidden javascript-indent-on-char %<
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eval -draft -itersel %<
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# align closer token to its opener when alone on a line
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try %/ exec -draft <a-h> <a-k> ^\h+[]}]$ <ret> m s \A|.\z <ret> 1<a-&> /
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>
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>
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def -hidden javascript-indent-on-new-line %<
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eval -draft -itersel %<
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# copy // comments prefix and following white spaces
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try %{ exec -draft k <a-x> s ^\h*\K#\h* <ret> y gh j P }
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# preserve previous line indent
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try %{ exec -draft \; K <a-&> }
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# filter previous line
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try %{ exec -draft k : javascript-filter-around-selections <ret> }
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# indent after lines beginning / ending with opener token
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try %_ exec -draft k <a-x> <a-k> ^\h*[[{]|[[{]$ <ret> j <a-gt> _
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>
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>
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# Initialization
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# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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hook -group javascript-highlight global WinSetOption filetype=javascript %{ add-highlighter ref javascript }
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hook global WinSetOption filetype=javascript %{
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hook window InsertEnd .* -group javascript-hooks javascript-filter-around-selections
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hook window InsertChar .* -group javascript-indent javascript-indent-on-char
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hook window InsertChar \n -group javascript-indent javascript-indent-on-new-line
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}
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hook -group javascript-highlight global WinSetOption filetype=(?!javascript).* %{ remove-highlighter javascript }
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hook global WinSetOption filetype=(?!javascript).* %{
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remove-hooks window javascript-indent
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remove-hooks window javascript-hooks
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}
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