181 lines
7.0 KiB
VimL
181 lines
7.0 KiB
VimL
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if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'haskell') == -1
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" 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 match haskellRecordField contained containedin=haskellBlock
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\ "[_a-z][a-zA-Z0-9_']*\(,\s*[_a-z][a-zA-Z0-9_']*\)*\(\s*::\|\n\s\+::\)"
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\ contains=
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\ haskellIdentifier,
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\ haskellOperators,
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\ haskellSeparator,
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\ haskellParens,
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syn match haskellTypeSig
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\ "^\s*\(where\s\+\|let\s\+\|default\s\+\)\?[_a-z][a-zA-Z0-9_']*\(,\s*[_a-z][a-zA-Z0-9_']*\)*\(\s*::\|\n\s\+::\)"
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\ contains=
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\ haskellWhere,
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\ haskellLet,
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\ haskellIdentifier,
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\ haskellOperators,
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\ haskellSeparator,
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\ haskellParens,
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syn keyword haskelLWhere where
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syn keyword haskellLet let
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syn keyword haskellDeclKeyword module class instance newtype deriving in
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syn match haskellDecl "\<\(type\|data\)\>\s\+\(\<family\>\)\?"
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syn keyword haskellDefault default
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syn keyword haskellImportKeywords import qualified safe as hiding contained
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syn keyword haskellForeignKeywords foreign export import ccall safe unsafe interruptible capi prim contained
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syn region haskellForeignImport start="\<foreign\>" end="::" keepend
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\ contains=
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\ haskellString,
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\ haskellOperators,
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\ haskellForeignKeywords,
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\ haskellIdentifier
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syn match haskellImport "^\<import\>\s\+\(\<safe\>\s\+\)\?\(\<qualified\>\s\+\)\?.\+\(\s\+\<as\>\s\+.\+\)\?\(\s\+\<hiding\>\)\?"
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\ contains=
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\ haskellParens,
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\ haskellOperators,
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\ haskellImportKeywords,
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\ haskellType,
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\ haskellLineComment,
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\ haskellBlockComment,
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\ haskellPragma,
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syn keyword haskellStatement do case of
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if exists('g:haskell_enable_static_pointers') && g:haskell_enable_static_pointers == 1
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syn keyword haskellStatic static
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endif
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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]\+\>\|\<0[bB][10]\+\>"
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syn match haskellFloat "\<[0-9]\+\.[0-9]\+\([eE][-+]\=[0-9]\+\)\=\>"
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syn match haskellSeparator "[,;]"
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syn region haskellParens matchgroup=haskellDelimiter start="(" end=")" contains=TOP,haskellTypeSig
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syn region haskellBrackets matchgroup=haskellDelimiter start="\[" end="]" contains=TOP,haskellTypeSig
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syn region haskellBlock matchgroup=haskellDelimiter start="{" end="}" contains=TOP
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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 haskellQuote "\<'\+" contained
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syn match haskellQuotedType "[A-Z][a-zA-Z0-9_']*\>" contained
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syn region haskellQuoted start="\<'\+" end="\>"
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\ contains=
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\ haskellType,
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\ haskellQuote,
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\ haskellQuotedType,
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\ haskellSeparator,
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\ haskellParens,
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\ haskellOperators,
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\ haskellIdentifier
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syn match haskellLineComment "---*\([^-!#$%&\*\+./<=>\?@\\^|~].*\)\?$"
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\ contains=
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\ haskellTodo,
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\ @Spell
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syn match haskellBacktick "`[A-Za-z_][A-Za-z0-9_\.']*`"
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syn region haskellString start=+"+ skip=+\\\\\|\\"+ end=+"+
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\ contains=@Spell
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syn match haskellIdentifier "[_a-z][a-zA-z0-9_']*" contained
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syn match haskellChar "\<'[^'\\]'\|'\\.'\|'\\u[0-9a-fA-F]\{4}'\>"
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syn match haskellType "\<[A-Z][a-zA-Z0-9_']*\>"
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syn region haskellBlockComment start="{-" end="-}"
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\ contains=
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\ haskellBlockComment,
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\ haskellTodo,
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\ @Spell
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syn region haskellPragma start="{-#" end="#-}"
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syn match haskellQuasiQuoted "." containedin=haskellQuasiQuote contained
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syn region haskellQuasiQuote matchgroup=haskellTH start="\[[_a-z][a-zA-z0-9_']*|" end="|\]"
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syn region haskellTHBlock matchgroup=haskellTH start="\[\(d\|t\|p\)\?|" end="|]" contains=TOP
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syn region haskellTHDoubleBlock matchgroup=haskellTH start="\[||" end="||]" contains=TOP
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syn match haskellPreProc "^#.*$"
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syn keyword haskellTodo TODO FIXME contained
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" Treat a shebang line at the start of the file as a comment
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syn match haskellShebang "\%^#!.*$"
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if exists('g:haskell_enable_typeroles') && g:haskell_enable_typeroles == 1
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syn keyword haskellTypeRoles phantom representational nominal contained
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syn region haskellTypeRoleBlock matchgroup=haskellTypeRoles start="type\s\+role" end="$" keepend
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\ contains=
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\ haskellType,
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\ haskellTypeRoles
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endif
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if exists('g:haskell_enable_quantification') && g:haskell_enable_quantification == 1
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syn keyword haskellForall forall
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endif
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if exists('g:haskell_enable_recursivedo') && g:haskell_enable_recursivedo == 1
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syn keyword haskellRecursiveDo mdo rec
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endif
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if exists('g:haskell_enable_arrowsyntax') && g:haskell_enable_arrowsyntax == 1
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syn keyword haskellArrowSyntax proc
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endif
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if exists('g:haskell_enable_pattern_synonyms') && g:haskell_enable_pattern_synonyms == 1
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syn keyword haskellPatternKeyword pattern
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endif
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highlight def link haskellBottom Macro
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highlight def link haskellTH Boolean
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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 haskellForeignKeywords Structure
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highlight def link haskellDeriving Structure
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highlight def link haskellStatement Statement
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highlight def link haskellDefault 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 haskellSeparator Delimiter
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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 haskellQuote Operator
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highlight def link haskellQuotedType Include
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highlight def link haskellType Include
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highlight def link haskellShebang Comment
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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 haskellPragma SpecialComment
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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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highlight def link haskellPreProc Macro
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highlight def link haskellTodo Todo
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highlight def link haskellAssocType Structure
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highlight def link haskellImportBlock Delimiter
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highlight def link haskellImportKeywords Structure
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highlight def link haskellDeclKeyword Structure
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highlight def link haskellDecl Structure
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highlight def link haskellWhere Structure
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highlight def link haskellLet Structure
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highlight def link haskellQuasiQuoted String
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if exists('g:haskell_enable_quantification') && g:haskell_enable_quantification == 1
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highlight def link haskellForall Operator
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endif
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if exists('g:haskell_enable_recursivedo') && g:haskell_enable_recursivedo == 1
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highlight def link haskellRecursiveDo Operator
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endif
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if exists('g:haskell_enable_arrowsyntax') && g:haskell_enable_arrowsyntax == 1
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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') && g:haskell_enable_pattern_synonyms == 1
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highlight def link haskellPatternKeyword Structure
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endif
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if exists('g:haskell_enable_typeroles') && g:haskell_enable_typeroles == 1
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highlight def link haskellTypeRoles Structure
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endif
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if exists('g:haskell_enable_static_pointers') && g:haskell_enable_static_pointers == 1
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highlight def link haskellStatic Statement
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endif
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let b:current_syntax = "haskell"
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endif
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