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" Vim syntax file
" Language: Yacc
" Maintainer: Charles E. Campbell, Jr. <NdrOchipS@PcampbellAfamily.Mbiz>
" Last Change: Aug 12, 2010
" Version: 9
" URL: http://mysite.verizon.net/astronaut/vim/index.html#vimlinks_syntax
"
" Options: {{{1
" g:yacc_uses_cpp : if this variable exists, then C++ is loaded rather than C
" ---------------------------------------------------------------------
" this version of syntax/yacc.vim requires 6.0 or later
if version < 600
finish
endif
if exists("b:current_syntax")
syntax clear
endif
" ---------------------------------------------------------------------
" Folding Support {{{1
if has("folding")
com! -nargs=+ HiFold <args> fold
else
com! -nargs=+ HiFold <args>
endif
" ---------------------------------------------------------------------
" Read the C syntax to start with {{{1
if exists("g:yacc_uses_cpp")
syn include @yaccCode <sfile>:p:h/cpp.vim
else
syn include @yaccCode <sfile>:p:h/c.vim
endif
" ---------------------------------------------------------------------
" Yacc Clusters: {{{1
syn cluster yaccInitCluster contains=yaccKey,yaccKeyActn,yaccBrkt,yaccType,yaccString,yaccUnionStart,yaccHeader2,yaccComment,yaccDefines,yaccParseParam,yaccParseOption
syn cluster yaccRulesCluster contains=yaccNonterminal,yaccString
" ---------------------------------------------------------------------
" Yacc Sections: {{{1
HiFold syn region yaccInit start='.'ms=s-1,rs=s-1 matchgroup=yaccSectionSep end='^%%$'me=e-2,re=e-2 contains=@yaccInitCluster nextgroup=yaccRules skipwhite skipempty contained
HiFold syn region yaccInit2 start='\%^.'ms=s-1,rs=s-1 matchgroup=yaccSectionSep end='^%%$'me=e-2,re=e-2 contains=@yaccInitCluster nextgroup=yaccRules skipwhite skipempty
HiFold syn region yaccHeader2 matchgroup=yaccSep start="^\s*\zs%{" end="^\s*%}" contains=@yaccCode nextgroup=yaccInit skipwhite skipempty contained
HiFold syn region yaccHeader matchgroup=yaccSep start="^\s*\zs%{" end="^\s*%}" contains=@yaccCode nextgroup=yaccInit skipwhite skipempty
HiFold syn region yaccRules matchgroup=yaccSectionSep start='^%%$' end='^%%$'me=e-2,re=e-2 contains=@yaccRulesCluster nextgroup=yaccEndCode skipwhite skipempty contained
HiFold syn region yaccEndCode matchgroup=yaccSectionSep start='^%%$' end='\%$' contains=@yaccCode contained
" ---------------------------------------------------------------------
" Yacc Commands: {{{1
syn match yaccDefines '^%define\s\+.*$'
syn match yaccParseParam '%\(parse\|lex\)-param\>' skipwhite nextgroup=yaccParseParamStr
syn match yaccParseOption '%\%(api\.pure\|pure-parser\|locations\|error-verbose\)\>'
syn region yaccParseParamStr contained matchgroup=Delimiter start='{' end='}' contains=cStructure
syn match yaccDelim "[:|]" contained
syn match yaccOper "@\d\+" contained
syn match yaccKey "^\s*%\(token\|type\|left\|right\|start\|ident\|nonassoc\)\>" contained
syn match yaccKey "\s%\(prec\|expect\)\>" contained
syn match yaccKey "\$\(<[a-zA-Z_][a-zA-Z_0-9]*>\)\=[\$0-9]\+" contained
syn keyword yaccKeyActn yyerrok yyclearin contained
syn match yaccUnionStart "^%union" skipwhite skipnl nextgroup=yaccUnion contained
HiFold syn region yaccUnion matchgroup=yaccCurly start="{" matchgroup=yaccCurly end="}" contains=@yaccCode contained
syn match yaccBrkt "[<>]" contained
syn match yaccType "<[a-zA-Z_][a-zA-Z0-9_]*>" contains=yaccBrkt contained
HiFold syn region yaccNonterminal start="^\s*\a\w*\ze\_s*\(/\*\_.\{-}\*/\)\=\_s*:" matchgroup=yaccDelim end=";" matchgroup=yaccSectionSep end='^%%$'me=e-2,re=e-2 contains=yaccAction,yaccDelim,yaccString,yaccComment contained
syn region yaccComment start="/\*" end="\*/"
syn match yaccString "'[^']*'" contained
" ---------------------------------------------------------------------
" I'd really like to highlight just the outer {}. Any suggestions??? {{{1
syn match yaccCurlyError "[{}]"
HiFold syn region yaccAction matchgroup=yaccCurly start="{" end="}" contains=@yaccCode contained
" ---------------------------------------------------------------------
" Yacc synchronization: {{{1
syn sync fromstart
" ---------------------------------------------------------------------
" Define the default highlighting. {{{1
if !exists("did_yacc_syn_inits")
command -nargs=+ HiLink hi def link <args>
" Internal yacc highlighting links {{{2
HiLink yaccBrkt yaccStmt
HiLink yaccKey yaccStmt
HiLink yaccOper yaccStmt
HiLink yaccUnionStart yaccKey
" External yacc highlighting links {{{2
HiLink yaccComment Comment
HiLink yaccCurly Delimiter
HiLink yaccCurlyError Error
HiLink yaccDefines cDefine
HiLink yaccParseParam yaccParseOption
HiLink yaccParseOption cDefine
HiLink yaccNonterminal Function
HiLink yaccDelim Delimiter
HiLink yaccKeyActn Special
HiLink yaccSectionSep Todo
HiLink yaccSep Delimiter
HiLink yaccString String
HiLink yaccStmt Statement
HiLink yaccType Type
" since Bram doesn't like my Delimiter :| {{{2
HiLink Delimiter Type
delcommand HiLink
endif
" ---------------------------------------------------------------------
" Cleanup: {{{1
delcommand HiFold
let b:current_syntax = "yacc"
" ---------------------------------------------------------------------
" Modelines: {{{1
" vim: ts=15 fdm=marker
|
