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" Vim syntax file
" Language: Yacc
" Maintainer: Dr. Charles E. Campbell, Jr. <Charles.Campbell@gsfc.nasa.gov>
" Last change: June 22, 1998
" Remove any old syntax stuff hanging around
syn clear
" Read the C syntax to start with
source <sfile>:p:h/c.vim
" Yacc stuff
syn match yaccDelim "^[ \t]*[:|;]"
syn match yaccOper "@\d\+"
syn match yaccKey "^[ \t]*%\(token\|type\|left\|right\|start\|ident\)\>"
syn match yaccKey "[ \t]%\(prec\|expect\|nonassoc\)\>"
syn match yaccKey "\$\(<[a-zA-Z_][a-zA-Z_0-9]*>\)\=[\$0-9]\+"
syn keyword yaccKeyActn yyerrok yyclearin
syn region yaccUnion matchgroup=yaccKey start="%union[\$ \t]*{\=" matchgroup=yaccBrace end="}" contains=yaccKey,cComment,yaccBrace,cType,cStructure,cStorageClass
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 yaccSep "^[ \t]*%%"
syn match yaccSep "^[ \t]*%{"
syn match yaccSep "^[ \t]*%}"
" I'd really like to highlight just the outer {}. Any suggestions???
syn match yaccBraceError "[{}]"
syn region yaccAction matchgroup=yaccBrace start="{" end="}" contains=ALLBUT,yaccDelim,cInParen,cTodo,cIncluded,yaccDelim,yaccBraceError
if !exists("did_yacc_syntax_inits")
" The default methods for highlighting. Can be overridden later
let did_yacc_syntax_inits = 1
" Internal yacc highlighting links
hi link yaccBrace yaccDelim
hi link yaccBrkt yaccStmt
hi link yaccKey yaccStmt
hi link yaccOper yaccStmt
" External yacc highlighting links
hi link yaccStmt Statement
hi link yaccDefinition Function
hi link yaccDelim Function
hi link yaccKeyActn Special
hi link yaccSep Delimiter
hi link yaccType Type
hi link yaccBraceError Error
" since Bram doesn't like my Delimiter :|
hi link Delimiter Type
endif
let b:current_syntax = "yacc"
" vim: ts=15
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