" Maintainer: Dr. Charles E. Campbell, Jr. <Charles.E.Campbell.1@gsfc.nasa.gov>
" Last Change: March 1, 2001
" Option:
" yacc_uses_cpp : if this variable exists, then C++ is loaded rather than C
" For version 5.x: Clear all syntax items
" For version 6.x: Quit when a syntax file was already loaded
if version < 600
syntax clear
elseif exists("b:current_syntax")
finish
endif
" Read the C syntax to start with
if version >= 600
if exists("yacc_uses_cpp")
runtime! syntax/cpp.vim
else
runtime! syntax/c.vim
endif
elseif exists("yacc_uses_cpp")
so <sfile>:p:h/cpp.vim
else
so <sfile>:p:h/c.vim
endif
" Clusters
syn cluster yaccActionGroup contains=yaccDelim,cInParen,cTodo,cIncluded,yaccDelim,yaccCurlyError,yaccUnionCurly,yaccUnion,cUserLabel,cOctalZero,cCppOut2,cCppSkip,cErrInBracket,cErrInParen,cOctalError,cCommentStartError,cParenError
syn cluster yaccUnionGroup contains=yaccKey,cComment,yaccCurly,cType,cStructure,cStorageClass,yaccUnionCurly
" Yacc stuff
syn match yaccDelim "^\s*[:|;]"
syn match yaccOper "@\d\+"
syn match yaccKey "^\s*%\(token\|type\|left\|right\|start\|ident\|nonassoc\)\>"
syn match yaccKey "\s%\(prec\|expect\)\>"
syn match yaccKey "\$\(<[a-zA-Z_][a-zA-Z_0-9]*>\)\=[\$0-9]\+"
syn keyword yaccKeyActn yyerrok yyclearin
syn match yaccUnionStart "^%union" skipwhite skipnl nextgroup=yaccUnion
syn region yaccUnion contained matchgroup=yaccCurly start="{" matchgroup=yaccCurly end="}" contains=@yaccUnionGroup
syn region yaccUnionCurly contained matchgroup=yaccCurly start="{" matchgroup=yaccCurly end="}" contains=@yaccUnionGroup
syn match yaccBrkt contained "[<>]"
syn match yaccType "<[a-zA-Z_][a-zA-Z0-9_]*>" contains=yaccBrkt
syn match yaccDefinition "^[A-Za-z][A-Za-z0-9_]*[ \t]*:"
" special Yacc separators
syn match yaccSectionSep "^[ \t]*%%"
syn match yaccSep "^[ \t]*%{"
syn match yaccSep "^[ \t]*%}"
" I'd really like to highlight just the outer {}. Any suggestions???
syn match yaccCurlyError "[{}]"
syn region yaccAction matchgroup=yaccCurly start="{" end="}" contains=ALLBUT,@yaccActionGroup
" Define the default highlighting.
" For version 5.7 and earlier: only when not done already
" For version 5.8 and later: only when an item doesn't have highlighting yet
if version >= 508 || !exists("did_yacc_syn_inits")