101 lines
4.5 KiB
VimL
101 lines
4.5 KiB
VimL
" syntax highlighting for haskell
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"
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" Heavily modified version of the haskell syntax
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" highlighter to support haskell.
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"
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" author: raichoo (raichoo@googlemail.com)
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if version < 600
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syn clear
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elseif exists("b:current_syntax")
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finish
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endif
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syn keyword haskellBlockKeywords data type family module where class instance contained
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syn region haskellModuleBlock start="\<module\>" end="\<where\>"
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\ contains=haskellType,haskellDelimiter,haskellDot,haskellOperators,haskellModule,haskellBlockKeywords,haskellLineComment,haskellBlockComment keepend
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syn region haskellBlock start="\<\(class\|instance\)\>" end="\(\<where\>\|[\n]\)"
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\ contains=haskellType,haskellDelimiter,haskellDot,haskellOperators,haskellModule,haskellBlockKeywords keepend
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syn region haskellDataBlock start="\<\(data\|type\)\>\(\s\+\<family\>\)\?" end="\([=\n]\|\<where\>\)"
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\ contains=haskellType,haskellDelimiter,haskellDot,haskellOperators,haskellModule,haskellBlockKeywords keepend
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syn match haskellImport "\(\<import\>\(\s\+safe\)\?\|\<hiding\>\)"
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syn match haskellForeign "\<foreign\>\s\+\<\(export\|import\)\>\(\s\+\(\<ccall\>\(\s\+\<\(\(un\)\?safe\|interruptible\)\>\)\?\|\<capi\>\|\<prim\>\)\>\)\?"
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syn region haskellQualifiedImport start="\<qualified\>" contains=haskellType,haskellDot end="\<as\>"
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syn keyword haskellStructure newtype deriving default
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syn keyword haskellStatement do case of let in where
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syn keyword haskellConditional if then else
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syn match haskellNumber "\<[0-9]\+\>\|\<0[xX][0-9a-fA-F]\+\>\|\<0[oO][0-7]\+\>"
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syn match haskellFloat "\<[0-9]\+\.[0-9]\+\([eE][-+]\=[0-9]\+\)\=\>"
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syn match haskellDelimiter "(\|)\|\[\|\]\|,\|;\|{\|}"
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syn keyword haskellInfix infix infixl infixr
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syn keyword haskellBottom undefined error
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syn match haskellOperators "\([-!#$%&\*\+/<=>\?@\\^|~:]\|\<_\>\)"
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syn match haskellDot "\."
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syn match haskellType "\<[A-Z][a-zA-Z0-9_]*\>"
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syn match haskellLineComment "---*\([^-!#$%&\*\+./<=>\?@\\^|~].*\)\?$" contains=@Spell
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syn match haskellChar "'[^'\\]'\|'\\.'\|'\\u[0-9a-fA-F]\{4}'"
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syn match haskellBacktick "`[A-Za-z][A-Za-z0-9_\.]*\('\)*`"
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syn region haskellString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=@Spell
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syn region haskellBlockComment start="{-" end="-}" contains=haskellBlockComment,@Spell
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syn match haskellIdentifier "[_a-z][a-zA-z0-9_]*\('\)*" contained
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syn match haskellTopLevelDecl "\s*[_a-z][a-zA-z0-9_]*\('\)*\s*::" contains=haskellIdentifier,haskellOperators
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if exists('g:haskell_enable_typeroles')
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syn keyword haskellTypeRoles type role phantom representational nominal contained
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syn region haskellTypeRoleBlock start="type\s\+role" end="[\n]"
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\ contains=haskellType,haskellTypeRoles keepend
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endif
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if exists('g:haskell_enable_quantification')
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syn keyword haskellForall forall contained
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syn match haskellQuantification "\<\(forall\)\>\s\+[^.=]*\."
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\ contains=haskellForall,haskellOperators,haskellDot,haskellDelimiter
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endif
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if exists('g:haskell_enable_recursivedo')
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syn keyword haskellRecursiveDo mdo rec
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endif
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if exists('g:haskell_enable_arrowsyntax')
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syn keyword haskellArrowSyntax proc
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endif
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if exists('g:haskell_enable_pattern_synonyms')
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syn keyword haskellPatternSynonyms pattern
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endif
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highlight def link haskellBottom Macro
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highlight def link haskellBlockKeywords Structure
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highlight def link haskellIdentifier Identifier
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highlight def link haskellImport Structure
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highlight def link haskellForeign Structure
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highlight def link haskellQualifiedImport Structure
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highlight def link haskellStructure Structure
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highlight def link haskellStatement Statement
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highlight def link haskellConditional Conditional
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highlight def link haskellNumber Number
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highlight def link haskellFloat Float
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highlight def link haskellDelimiter Delimiter
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highlight def link haskellInfix PreProc
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highlight def link haskellOperators Operator
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highlight def link haskellDot Operator
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highlight def link haskellType Include
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highlight def link haskellLineComment Comment
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highlight def link haskellBlockComment Comment
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highlight def link haskellString String
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highlight def link haskellChar String
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highlight def link haskellBacktick Operator
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if exists('g:haskell_enable_quantification')
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highlight def link haskellForall Operator
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endif
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if exists('g:haskell_enable_recursivedo')
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highlight def link haskellRecursiveDo Operator
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endif
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if exists('g:haskell_enable_arrowsyntax')
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highlight def link haskellArrowSyntax Operator
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endif
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if exists('g:haskell_enable_pattern_synonyms')
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highlight def link haskellPatternSynonyms Structure
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endif
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if exists('g:haskell_enable_typeroles')
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highlight def link haskellTypeRoles Structure
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endif
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let b:current_syntax = "haskell"
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