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71 lines
2.7 KiB
Plaintext
71 lines
2.7 KiB
Plaintext
# http://haskell.org
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# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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# Detection
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# ‾‾‾‾‾‾‾‾‾
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hook global BufCreate .*[.](hs) %{
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set buffer filetype haskell
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}
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# Highlighters
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# ‾‾‾‾‾‾‾‾‾‾‾‾
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add-highlighter -group / regions -default code haskell \
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string '"' (?<!\\)(\\\\)*" '' \
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comment (--[^>]) $ '' \
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comment \{- -\} \{- \
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macro ^\h*?\K# (?<!\\)\n ''
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add-highlighter -group /haskell/string fill string
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add-highlighter -group /haskell/comment fill comment
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add-highlighter -group /haskell/macro fill meta
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add-highlighter -group /haskell/code regex \b(import)\b 0:meta
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add-highlighter -group /haskell/code regex \b(True|False)\b 0:value
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add-highlighter -group /haskell/code regex \b(as|case|class|data|default|deriving|do|else|hiding|if|in|infix|infixl|infixr|instance|let|module|newtype|of|qualified|then|type|where)\b 0:keyword
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add-highlighter -group /haskell/code regex \b(Int|Integer|Char|Bool|Float|Double|IO|Void|Addr|Array|String)\b 0:type
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# Commands
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# ‾‾‾‾‾‾‾‾
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# http://en.wikibooks.org/wiki/Haskell/Indentation
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def -hidden haskell-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 haskell-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|do|let|where)\h+\K.* <ret> s \`|.\' <ret> & }
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# filter previous line
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try %{ exec -draft k : haskell-filter-around-selections <ret> }
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# indent after lines beginning with condition or ending with expression or =(
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try %{ exec -draft \; k x <a-k> ^\h*(if)|(case\h+[\w']+\h+of|do|let|where|[=(])$ <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 haskell-highlight global WinSetOption filetype=haskell %{ add-highlighter ref haskell }
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hook global WinSetOption filetype=haskell %{
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set buffer completion_extra_word_char "'"
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hook window InsertEnd .* -group haskell-hooks haskell-filter-around-selections
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hook window InsertChar \n -group haskell-indent haskell-indent-on-new-line
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}
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hook -group haskell-highlight global WinSetOption filetype=(?!haskell).* %{ remove-highlighter haskell }
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hook global WinSetOption filetype=(?!haskell).* %{
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remove-hooks window haskell-indent
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remove-hooks window haskell-hooks
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}
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