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haskell.vim
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haskell.vim
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" Vim syntax file
" Language: Haskell
" Maintainer: Rui Carlos A. Goncalves <rcgoncalves.pt@gmail.com>
" Last Change: September 15, 2010
"
" Version: 2.0
" Url: http://rcgoncalves.net/files/haskell.zip
"
" Original Author: John Williams <jrw@pobox.com>
" Remove any old syntax stuff hanging around
if version < 600
syn clear
elseif exists("b:current_syntax")
finish
endif
" (Qualified) identifiers (no default highlighting)
syn match ConId "\(\<[A-Z][a-zA-Z0-9_']*\.\)\=\<[A-Z][a-zA-Z0-9_']*\>"
syn match VarId "\(\<[A-Z][a-zA-Z0-9_']*\.\)\=\<[a-z][a-zA-Z0-9_']*\>"
" Infix operators--most punctuation characters and any (qualified) identifier
" enclosed in `backquotes`. An operator starting with : is a constructor,
" others are variables (e.g. functions).
syn match hsVarSym "\(\<[A-Z][a-zA-Z0-9_']*\.\)\=[-!#$%&\*\+/<=>\?@\\^|~.][-!#$%&\*\+/<=>\?@\\^|~:.]*"
syn match hsConSym "\(\<[A-Z][a-zA-Z0-9_']*\.\)\=:[-!#$%&\*\+./<=>\?@\\^|~:]*"
syn match hsVarSym "`\(\<[A-Z][a-zA-Z0-9_']*\.\)\=[a-z][a-zA-Z0-9_']*`"
syn match hsConSym "`\(\<[A-Z][a-zA-Z0-9_']*\.\)\=[A-Z][a-zA-Z0-9_']*`"
" Reserved symbols--cannot be overloaded.
syn match hsDelimiter "(\|)\|\[\|\]\|,\|;\|_\|{\|}"
" Strings and constants
syn match hsSpecialChar contained "\\\([0-9]\+\|o[0-7]\+\|x[0-9a-fA-F]\+\|[\"\\'&\\abfnrtv]\|^[A-Z^_\[\\\]]\)"
syn match hsSpecialChar contained "\\\(NUL\|SOH\|STX\|ETX\|EOT\|ENQ\|ACK\|BEL\|BS\|HT\|LF\|VT\|FF\|CR\|SO\|SI\|DLE\|DC1\|DC2\|DC3\|DC4\|NAK\|SYN\|ETB\|CAN\|EM\|SUB\|ESC\|FS\|GS\|RS\|US\|SP\|DEL\)"
syn match hsSpecialCharError contained "\\&\|'''\+"
syn region hsString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=hsSpecialChar
syn match hsCharacter "[^a-zA-Z0-9_']'\([^\\]\|\\[^']\+\|\\'\)'"lc=1 contains=hsSpecialChar,hsSpecialCharError
syn match hsCharacter "^'\([^\\]\|\\[^']\+\|\\'\)'" contains=hsSpecialChar,hsSpecialCharError
syn match hsNumber "\<[0-9]\+\>\|\<0[xX][0-9a-fA-F]\+\>\|\<0[oO][0-7]\+\>"
syn match hsFloat "\<[0-9]\+\.[0-9]\+\([eE][-+]\=[0-9]\+\)\=\>"
" Keyword definitions. These must be patters instead of keywords
" because otherwise they would match as keywords at the start of a
" "literate" comment (see lhs.vim).
syn match hsModule "\<module\>"
syn match hsImport "\<import\>.*"he=s+6 contains=hsImportMod,hsString,hsType,hsFunction
syn match hsImportMod contained "\<\(as\|qualified\|hiding\)\>"
syn match hsInfix "\<\(infix\|infixl\|infixr\)\>"
syn match hsStructure "\<\(class\|data\|deriving\|instance\|default\|where\)\>"
syn match hsTypedef "\<\(type\|newtype\)\>"
syn match hsStatement "\<\(do\|return\|case\|of\|let\|in\)\>"
syn match hsConditional "\<\(if\|then\|else\)\>"
" Haskell 2010 keywords
syn match hsForeign "\<foreign\>"
" Types from the standard prelude.
syn match hsType "\<\(Bool\|Maybe\|Either\|Ordering\)\>"
syn match hsType "\<\(Char\|String\|Int\|Integer\|Float\|Double\|Rational\|IO\)\>"
syn match hsType "\<\(ReadS\|ShowS\)\>"
syn match hsType "\<\(FilePath\|IOError\)\>"
" Classes from the standard prelude
syn match hsType "\<\(Eq\|Ord\|Enum\|Bounded\|Num\|Real\|Integral\|Fractional\|Floating\|RealFrac\|RealFloat\|Monad\|Functor\)\>"
syn match hsType "\<\(Show\|Read\)\>"
" Constants from the standard prelude.
syn match hsBoolean "\<\(True\|False\)\>"
syn match hsMaybe "\<\(Nothing\|Just\)\>"
syn match hsConstant "\<\(Left\|Right\)\>"
syn match hsOrdering "\<\(LT\|EQ\|GT\)\>"
" Functions from the standard prelude.
syn match hsFunction "\<\(compare\|max\|min\)\>"
syn match hsFunction "\<\(succ\|pred\|toEnum\|fromEnum\|enumFrom\|enumFromThen\|enumFromTo\|enumFromThenTo\)\>"
syn match hsFunction "\<\(minBound\|maxBound\)\>"
syn match hsFunction "\<\(negate\|abs\|signum\|fromInteger\)\>"
syn match hsFunction "\<toRational\>"
syn match hsFunction "\<\(quot\|rem\|div\|mod\|quotRem\|divMod\|toInteger\)\>"
syn match hsFunction "\<\(recip\|fromRational\)\>"
syn match hsFunction "\<\(pi\|exp\|log\|sqrt\|logBase\|sin\|cos\|tan\|asin\|acos\|atan\|sinh\|cosh\|tanh\|asinh\|acosh\|atanh\)\>"
syn match hsFunction "\<\(properFraction\|truncate\|round\|ceiling\|floor\)\>"
syn match hsFunction "\<\(floatRadix\|floatDigits\|floatRange\|decodeFloat\|encodeFloat\|exponent\|significand\|scaleFloat\|isNaN\|isInfinite\|isDenormalized\|isIEEE\|isNegativeZero\|atan2\)\>"
syn match hsFunction "\<\(return\|fail\)\>"
syn match hsFunction "\<\(fmap\)\>"
syn match hsFunction "\<\(mapM\|mapM_\|sequence\|sequence_\)\>"
syn match hsFunction "\<\(maybe\|either\)\>"
syn match hsFunction "\<\(not\|otherwise\)\>"
syn match hsFunction "\<\(subtract\|even\|odd\|gcd\|lcm\)\>"
syn match hsFunction "\<\(fromIntegral\|realToFrac\)\>"
syn match hsFunction "\<\(fst\|snd\|curry\|uncurry\|id\|const\|flip\|until\)\>"
syn match hsFunction "\<\(asTypeOf\|error\|undefined\)\>"
syn match hsFunction "\<\(seq\)\>"
syn match hsFunction "\<\(map\|filter\|concat\|concatMap\)\>"
syn match hsFunction "\<\(head\|last\|tail\|init\|null\|length\)\>"
syn match hsFunction "\<\(foldl\|foldl1\|scanl\|scanl1\|foldr\|foldr1\|scanr\|scanr1\)\>"
syn match hsFunction "\<\(iterate\|repeat\|replicate\|cycle\)\>"
syn match hsFunction "\<\(take\|drop\|splitAt\|takeWhile\|dropWhile\|span\|break\)\>"
syn match hsFunction "\<\(lines\|words\|unlines\|unwords\|reverse\|and\|or\)\>"
syn match hsFunction "\<\(any\|all\|elem\|notElem\|lookup\)\>"
syn match hsFunction "\<\(sum\|product\|maximum\|minimum\)\>"
syn match hsFunction "\<\(zip\|zip3\|zipWith\|zipWith3\|unzip\|unzip3\)\>"
syn match hsFunction "\<\(readsPrec\|readList\)\>"
syn match hsFunction "\<\(showsPrec\|show\|showList\)\>"
syn match hsFunction "\<\(reads\|shows\|read\|lex\)\>"
syn match hsFunction "\<\(showChar\|showString\|readParen\|showParen\)\>"
syn match hsFunction "\<\(ioError\|userError\|catch\)\>"
syn match hsFunction "\<\(putChar\|putStr\|putStrLn\|print\)\>"
syn match hsFunction "\<\(getChar\|getLine\|getContents\|interact\)\>"
syn match hsFunction "\<\(readFile\|writeFile\|appendFile\|readIO\|readLn\)\>"
" Comments
syn match hsLineComment "--.*"
syn region hsBlockComment start="{-" end="-}" contains=hsBlockComment
syn region hsPragma start="{-#" end="#-}"
" Literate comments--any line not starting with '>' is a comment.
if exists("b:hs_literate_comments")
syn region hsLiterateComment start="^" end="^>"
endif
if !exists("hs_minlines")
let hs_minlines = 50
endif
exec "syn sync lines=" . hs_minlines
if version >= 508 || !exists("did_hs_syntax_inits")
if version < 508
let did_hs_syntax_inits = 1
command -nargs=+ HiLink hi link <args>
else
command -nargs=+ HiLink hi def link <args>
endif
hi link hsModule hsStructure
hi link hsImport Include
hi link hsImportMod hsImport
hi link hsForeign hsImport
hi link hsInfix PreProc
hi link hsStructure Structure
hi link hsStatement Statement
hi link hsConditional Conditional
hi link hsSpecialChar SpecialChar
hi link hsTypedef Typedef
hi link hsVarSym hsOperator
hi link hsConSym hsOperator
hi link hsOperator Operator
hi link hsSpecialCharError Error
hi link hsString String
hi link hsCharacter Character
hi link hsNumber Number
hi link hsFloat Float
hi link hsConditional Conditional
hi link hsLiterateComment hsComment
hi link hsBlockComment hsComment
hi link hsLineComment hsComment
hi link hsComment Comment
hi link hsPragma SpecialComment
hi link hsBoolean Boolean
hi link hsType Type
hi link hsForeignType Type
hi link hsFunction Function
hi link hsMaybe hsEnumConst
hi link hsOrdering hsEnumConst
hi link hsEnumConst Constant
hi link hsConstant Constant
hi link hsDebug Debug
delcommand HiLink
endif
let b:current_syntax = "haskell"