83 lines
2.9 KiB
Plaintext
83 lines
2.9 KiB
Plaintext
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# Detection
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# ‾‾‾‾‾‾‾‾‾
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hook global BufSetOption mimetype=text/x-javascript %{
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set buffer filetype javascript
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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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addhl -group / multi_region -default code javascript \
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double_string '"' (?<!\\)(\\\\)*" '' \
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single_string "'" "'" '' \
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regex '/' (?<!\\)(\\\\)*/[gimy]* '' \
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comment '#' '$' ''
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# Regular expression flags are: g → global match, i → ignore case, m → multi-lines, y → sticky
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# https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp
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addhl -group /javascript/double_string fill string
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addhl -group /javascript/single_string fill string
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addhl -group /javascript/regex fill macro
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addhl -group /javascript/comment fill comment
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addhl -group /javascript/code regex \<(document|false|null|parent|self|this|true|undefined|window)\> 0:value
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addhl -group /javascript/code regex \<(Array|Boolean|Date|Function|Number|Object|RegExp|String)\> 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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addhl -group /javascript/code regex \<(break|case|catch|class|const|continue|debugger|default|delete|do|else|export|extends|finally|for|function|if|import|in|instanceof|let|new|return|super|switch|throw|try|typeof|var|void|while|with|yield)\> 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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eval -draft -itersel %{
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exec <a-x>
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# remove trailing white spaces
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try %{ exec -draft s \h+$ <ret> d }
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}
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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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# indent closer token to its opener
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try %_ exec -draft gh <a-k> ^\h*[]}] <ret> m <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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# preserve previous line indent
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try %{ exec -draft <space> 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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# copy // comments prefix and following white spaces
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try %{ exec -draft k x s ^\h*\K#\h* <ret> y j p }
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# indent after lines beginning / ending with opener token
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try %_ exec -draft k 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 global WinSetOption filetype=javascript %{
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addhl ref 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 global WinSetOption filetype=(?!javascript).* %{
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rmhl javascript
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rmhooks window javascript-indent
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rmhooks window javascript-hooks
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}
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