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72 lines
2.4 KiB
Plaintext
72 lines
2.4 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 buffer filetype elm
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}
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# Highlighters
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# ‾‾‾‾‾‾‾‾‾‾‾‾
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add-highlighter -group / regions -default code elm \
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string '"' (?<!\\)(\\\\)*" '' \
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comment (--) $ '' \
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comment \{- -\} \{- \
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add-highlighter -group /elm/string fill string
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add-highlighter -group /elm/comment fill comment
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add-highlighter -group /elm/code regex \b(import|exposing|as|module|where)\b 0:meta
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add-highlighter -group /elm/code regex \b(True|False)\b 0:value
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add-highlighter -group /elm/code regex \b(if|then|else|case|of|let|in|type|port|alias)\b 0:keyword
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add-highlighter -group /elm/code regex \b(Array|Bool|Char|Float|Int|String)\b 0:type
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# Commands
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# ‾‾‾‾‾‾‾‾
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# http://elm-lang.org/docs/style-guide
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def -hidden elm-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 elm-indent-after "
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exec -draft \\; 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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def -hidden elm-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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# align to first clause
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try %{ exec -draft \; 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 %{ exec -draft k : elm-filter-around-selections <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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# Initialization
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# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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hook -group elm-highlight global WinSetOption filetype=elm %{ add-highlighter ref elm }
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hook global WinSetOption filetype=elm %{
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hook window InsertEnd .* -group elm-hooks elm-filter-around-selections
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hook window InsertChar \n -group elm-indent elm-indent-on-new-line
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}
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hook -group elm-highlight global WinSetOption filetype=(?!elm).* %{ remove-highlighter elm }
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hook global WinSetOption filetype=(?!elm).* %{
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remove-hooks window elm-indent
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remove-hooks window elm-hooks
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}
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