" Vim default file
" Language: Racc input file
" Maintainer: Nikolai Weibull <[email protected]>
" Latest Revision: 2008-06-22

if exists("b:current_syntax")
finish
endif

let s:cpo_save = &cpo
set cpo&vim

syn keyword raccTodo contained TODO FIXME XXX NOTE

syn region raccComment start='/\*' end='\*/'
\ contains=raccTodo,@Spell
syn region raccComment display oneline start='#' end='$'
\ contains=raccTodo,@Spell

syn region raccClass transparent matchgroup=raccKeyword
\ start='\<class\>' end='\<rule\>'he=e-4
\ contains=raccComment,raccPrecedence,
\ raccTokenDecl,raccExpect,raccOptions,raccConvert,
\ raccStart,

syn region raccPrecedence transparent matchgroup=raccKeyword
\ start='\<prechigh\>' end='\<preclow\>'
\ contains=raccComment,raccPrecSpec

syn keyword raccPrecSpec contained nonassoc left right
\ nextgroup=raccPrecToken,raccPrecString skipwhite
\ skipnl

syn match raccPrecToken contained '\<\u[A-Z0-9_]*\>'
\ nextgroup=raccPrecToken,raccPrecString skipwhite
\ skipnl

syn region raccPrecString matchgroup=raccPrecString start=+"+
\ skip=+\\\\\|\\"+ end=+"+
\ contains=raccSpecial
\ nextgroup=raccPrecToken,raccPrecString skipwhite
\ skipnl
syn region raccPrecString matchgroup=raccPrecString start=+'+
\ skip=+\\\\\|\\'+ end=+'+ contains=raccSpecial
\ nextgroup=raccPrecToken,raccPrecString skipwhite
\ skipnl

syn keyword raccTokenDecl contained token
\ nextgroup=raccTokenR skipwhite skipnl

syn match raccTokenR contained '\<\u[A-Z0-9_]*\>'
\ nextgroup=raccTokenR skipwhite skipnl

syn keyword raccExpect contained expect
\ nextgroup=raccNumber skipwhite skipnl

syn match raccNumber contained '\<\d\+\>'

syn keyword raccOptions contained options
\ nextgroup=raccOptionsR skipwhite skipnl

syn keyword raccOptionsR contained omit_action_call result_var
\ nextgroup=raccOptionsR skipwhite skipnl

syn region raccConvert transparent contained matchgroup=raccKeyword
\ start='\<convert\>' end='\<end\>'
\ contains=raccComment,raccConvToken skipwhite
\ skipnl

syn match raccConvToken contained '\<\u[A-Z0-9_]*\>'
\ nextgroup=raccString skipwhite skipnl

syn keyword raccStart contained start
\ nextgroup=raccTargetS skipwhite skipnl

syn match raccTargetS contained '\<\l[a-z0-9_]*\>'

syn match raccSpecial contained '\\["'\\]'

syn region raccString start=+"+ skip=+\\\\\|\\"+ end=+"+
\ contains=raccSpecial
syn region raccString start=+'+ skip=+\\\\\|\\'+ end=+'+
\ contains=raccSpecial

syn region raccRules transparent matchgroup=raccKeyword start='\<rule\>'
\ end='\<end\>' contains=raccComment,raccString,
\ raccNumber,raccToken,raccTarget,raccDelimiter,
\ raccAction

syn match raccTarget contained '\<\l[a-z0-9_]*\>'

syn match raccDelimiter contained '[:|]'

syn match raccToken contained '\<\u[A-Z0-9_]*\>'

syn include @raccRuby syntax/ruby.vim

syn region raccAction transparent matchgroup=raccDelimiter
\ start='{' end='}' contains=@raccRuby

syn region raccHeader transparent matchgroup=raccPreProc
\ start='^---- header.*' end='^----'he=e-4
\ contains=@raccRuby

syn region raccInner transparent matchgroup=raccPreProc
\ start='^---- inner.*' end='^----'he=e-4
\ contains=@raccRuby

syn region raccFooter transparent matchgroup=raccPreProc
\ start='^---- footer.*' end='^----'he=e-4
\ contains=@raccRuby

syn sync match raccSyncHeader grouphere raccHeader '^---- header'
syn sync match raccSyncInner grouphere raccInner '^---- inner'
syn sync match raccSyncFooter grouphere raccFooter '^---- footer'

hi def link raccTodo Todo
hi def link raccComment Comment
hi def link raccPrecSpec Type
hi def link raccPrecToken raccToken
hi def link raccPrecString raccString
hi def link raccTokenDecl Keyword
hi def link raccToken Identifier
hi def link raccTokenR raccToken
hi def link raccExpect Keyword
hi def link raccNumber Number
hi def link raccOptions Keyword
hi def link raccOptionsR Identifier
hi def link raccConvToken raccToken
hi def link raccStart Keyword
hi def link raccTargetS Type
hi def link raccSpecial special
hi def link raccString String
hi def link raccTarget Type
hi def link raccDelimiter Delimiter
hi def link raccPreProc PreProc
hi def link raccKeyword Keyword

let b:current_syntax = "racc"

let &cpo = s:cpo_save
unlet s:cpo_save