82 lines
3.2 KiB
Plaintext
82 lines
3.2 KiB
Plaintext
# http://elm-lang.org
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# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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# Detection
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# ‾‾‾‾‾‾‾‾‾
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hook global BufCreate .*[.](elm) %{
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set-option buffer filetype elm
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}
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# Initialization
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# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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hook global WinSetOption filetype=elm %{
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require-module elm
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hook window ModeChange pop:insert:.* -group elm-trim-indent elm-trim-indent
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hook window InsertChar \n -group elm-indent elm-indent-on-new-line
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hook -once -always window WinSetOption filetype=.* %{ remove-hooks window elm-.+ }
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}
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hook -group elm-highlight global WinSetOption filetype=elm %{
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add-highlighter window/elm ref elm
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hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/elm }
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}
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hook global WinSetOption filetype=elm %{
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set-option window formatcmd 'elm-format --stdin'
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}
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provide-module elm %[
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# Highlighters
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# ‾‾‾‾‾‾‾‾‾‾‾‾
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add-highlighter shared/elm regions
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add-highlighter shared/elm/code default-region group
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add-highlighter shared/elm/string region '"' (?<!\\)(\\\\)*" fill string
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add-highlighter shared/elm/line_comment region (--) $ fill comment
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add-highlighter shared/elm/comment region -recurse \{- \{- -\} fill comment
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add-highlighter shared/elm/code/ regex \b([A-Z]+[^\s]*)\b 0:type
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add-highlighter shared/elm/code/ regex \b([a-z]+[^\s]*)\b 0:variable
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add-highlighter shared/elm/code/ regex \b(^[a-z]+[^\s]*)\b 0:function
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add-highlighter shared/elm/code/ regex "-?\b[0-9]*\.?[0-9]+" 0:value
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add-highlighter shared/elm/code/ regex \B(\+|\+\+|\*|/|//|-|=|==|&&|\|\||<\||\|>)\B 0:operator
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add-highlighter shared/elm/code/ regex \b(import|exposing|as|module|where)\b 0:meta
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add-highlighter shared/elm/code/ regex (\b(type|alias|if|then|else|case|of|let|in|infix|_)\b)|(\B(->|:)\B) 0:keyword
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# Commands
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# ‾‾‾‾‾‾‾‾
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# http://elm-lang.org/docs/style-guide
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define-command -hidden elm-trim-indent %{
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# remove trailing white spaces
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try %{ execute-keys -draft -itersel <a-x> s \h+$ <ret> d }
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}
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define-command -hidden elm-indent-after "
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execute-keys -draft <semicolon> k x <a-k> ^\\h*(if)|(case\\h+[\\w']+\\h+of|let|in|\\{\\h+\\w+|\\w+\\h+->|[=(])$ <ret> j <a-gt>
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"
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define-command -hidden elm-indent-on-new-line %{
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evaluate-commands -draft -itersel %{
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# copy -- comments prefix and following white spaces
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try %{ execute-keys -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 %{ execute-keys -draft <semicolon> K <a-&> }
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# align to first clause
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try %{ execute-keys -draft <semicolon> k x X s ^\h*(if|then|else)?\h*(([\w']+\h+)+=)?\h*(case\h+[\w']+\h+of|let)\h+\K.* <ret> s \A|.\z <ret> & }
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# filter previous line
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try %{ execute-keys -draft k : elm-trim-indent <ret> }
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# indent after lines beginning with condition or ending with expression or =(
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try %{ elm-indent-after }
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}
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}
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]
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