124 lines
5.5 KiB
VimL
124 lines
5.5 KiB
VimL
if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'vim') == -1
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" Vim syntax file
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" Language: Yacc
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" Maintainer: Charles E. Campbell <NdrOchipS@PcampbellAfamily.Mbiz>
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" Last Change: Aug 31, 2016
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" Version: 15
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" URL: http://www.drchip.org/astronaut/vim/index.html#SYNTAX_YACC
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"
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" Options: {{{1
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" g:yacc_uses_cpp : if this variable exists, then C++ is loaded rather than C
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" ---------------------------------------------------------------------
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" this version of syntax/yacc.vim requires 6.0 or later
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if exists("b:current_syntax")
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syntax clear
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endif
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" ---------------------------------------------------------------------
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" Folding Support {{{1
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if has("folding")
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com! -nargs=+ SynFold <args> fold
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else
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com! -nargs=+ SynFold <args>
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endif
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" ---------------------------------------------------------------------
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" Read the C syntax to start with {{{1
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" Read the C/C++ syntax to start with
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let s:Cpath= fnameescape(expand("<sfile>:p:h").(exists("g:yacc_uses_cpp")? "/cpp.vim" : "/c.vim"))
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if !filereadable(s:Cpath)
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for s:Cpath in split(globpath(&rtp,(exists("g:yacc_uses_cpp")? "syntax/cpp.vim" : "syntax/c.vim")),"\n")
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if filereadable(fnameescape(s:Cpath))
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let s:Cpath= fnameescape(s:Cpath)
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break
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endif
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endfor
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endif
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exe "syn include @yaccCode ".s:Cpath
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" ---------------------------------------------------------------------
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" Yacc Clusters: {{{1
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syn cluster yaccInitCluster contains=yaccKey,yaccKeyActn,yaccBrkt,yaccType,yaccString,yaccUnionStart,yaccHeader2,yaccComment,yaccDefines,yaccParseParam,yaccParseOption
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syn cluster yaccRulesCluster contains=yaccNonterminal,yaccString,yaccComment
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" ---------------------------------------------------------------------
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" Yacc Sections: {{{1
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SynFold syn region yaccInit start='.'ms=s-1,rs=s-1 matchgroup=yaccSectionSep end='^%%$'me=e-2,re=e-2 contains=@yaccInitCluster nextgroup=yaccRules skipwhite skipempty contained
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SynFold syn region yaccInit2 start='\%^.'ms=s-1,rs=s-1 matchgroup=yaccSectionSep end='^%%$'me=e-2,re=e-2 contains=@yaccInitCluster nextgroup=yaccRules skipwhite skipempty
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SynFold syn region yaccHeader2 matchgroup=yaccSep start="^\s*\zs%{" end="^\s*%}" contains=@yaccCode nextgroup=yaccInit skipwhite skipempty contained
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SynFold syn region yaccHeader matchgroup=yaccSep start="^\s*\zs%{" end="^\s*%}" contains=@yaccCode nextgroup=yaccInit skipwhite skipempty
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SynFold syn region yaccRules matchgroup=yaccSectionSep start='^%%$' end='^%%$'me=e-2,re=e-2 contains=@yaccRulesCluster nextgroup=yaccEndCode skipwhite skipempty contained
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SynFold syn region yaccEndCode matchgroup=yaccSectionSep start='^%%$' end='\%$' contains=@yaccCode contained
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" ---------------------------------------------------------------------
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" Yacc Commands: {{{1
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syn match yaccDefines '^%define\s\+.*$'
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syn match yaccParseParam '%\(parse\|lex\)-param\>' skipwhite nextgroup=yaccParseParamStr
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syn match yaccParseOption '%\%(api\.pure\|pure-parser\|locations\|error-verbose\)\>'
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syn region yaccParseParamStr contained matchgroup=Delimiter start='{' end='}' contains=cStructure
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syn match yaccDelim "[:|]" contained
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syn match yaccOper "@\d\+" contained
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syn match yaccKey "^\s*%\(token\|type\|left\|right\|start\|ident\|nonassoc\)\>" contained
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syn match yaccKey "\s%\(prec\|expect\)\>" contained
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syn match yaccKey "\$\(<[a-zA-Z_][a-zA-Z_0-9]*>\)\=[\$0-9]\+" contained
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syn keyword yaccKeyActn yyerrok yyclearin contained
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syn match yaccUnionStart "^%union" skipwhite skipnl nextgroup=yaccUnion contained
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SynFold syn region yaccUnion matchgroup=yaccCurly start="{" matchgroup=yaccCurly end="}" contains=@yaccCode contained
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syn match yaccBrkt "[<>]" contained
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syn match yaccType "<[a-zA-Z_][a-zA-Z0-9_]*>" contains=yaccBrkt contained
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SynFold 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
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syn region yaccComment start="/\*" end="\*/"
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syn match yaccString "'[^']*'" contained
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" ---------------------------------------------------------------------
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" I'd really like to highlight just the outer {}. Any suggestions??? {{{1
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syn match yaccCurlyError "[{}]"
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SynFold syn region yaccAction matchgroup=yaccCurly start="{" end="}" contains=@yaccCode,yaccVar contained
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syn match yaccVar '\$\d\+\|\$\$\|\$<\I\i*>\$\|\$<\I\i*>\d\+' containedin=cParen,cPreProc,cMulti contained
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" ---------------------------------------------------------------------
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" Yacc synchronization: {{{1
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syn sync fromstart
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" ---------------------------------------------------------------------
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" Define the default highlighting. {{{1
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if !exists("skip_yacc_syn_inits")
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hi def link yaccBrkt yaccStmt
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hi def link yaccComment Comment
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hi def link yaccCurly Delimiter
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hi def link yaccCurlyError Error
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hi def link yaccDefines cDefine
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hi def link yaccDelim Delimiter
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hi def link yaccKeyActn Special
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hi def link yaccKey yaccStmt
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hi def link yaccNonterminal Function
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hi def link yaccOper yaccStmt
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hi def link yaccParseOption cDefine
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hi def link yaccParseParam yaccParseOption
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hi def link yaccSectionSep Todo
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hi def link yaccSep Delimiter
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hi def link yaccStmt Statement
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hi def link yaccString String
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hi def link yaccType Type
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hi def link yaccUnionStart yaccKey
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hi def link yaccVar Special
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endif
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" ---------------------------------------------------------------------
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" Cleanup: {{{1
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delcommand SynFold
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let b:current_syntax = "yacc"
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" ---------------------------------------------------------------------
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" Modelines: {{{1
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" vim: ts=15 fdm=marker
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endif
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