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Diffstat (limited to 'runtime/syntax/lex.vim')
| -rw-r--r-- | runtime/syntax/lex.vim | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/runtime/syntax/lex.vim b/runtime/syntax/lex.vim new file mode 100644 index 000000000..25c423ef5 --- /dev/null +++ b/runtime/syntax/lex.vim @@ -0,0 +1,96 @@ +" Vim syntax file +" Language: Lex +" Maintainer: Dr. Charles E. Campbell, Jr. <NdrOchipS@PcampbellAfamily.Mbiz> +" Last Change: Sep 02, 2003 +" Version: 4 +" URL: http://www.erols.com/astronaut/vim/index.html#vimlinks_syntax +" +" Option: +" lex_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("lex_uses_cpp") + runtime! syntax/cpp.vim + else + runtime! syntax/c.vim + endif + unlet b:current_syntax +else + if exists("lex_uses_cpp") + so <sfile>:p:h/cpp.vim + else + so <sfile>:p:h/c.vim + endif +endif + +" --- Lex stuff --- + +"I'd prefer to use lex.* , but it doesn't handle forward definitions yet +syn cluster lexListGroup contains=lexAbbrvBlock,lexAbbrv,lexAbbrv,lexAbbrvRegExp,lexInclude,lexPatBlock,lexPat,lexBrace,lexPatString,lexPatTag,lexPatTag,lexPatComment,lexPatCodeLine,lexMorePat,lexPatSep,lexSlashQuote,lexPatCode,cInParen,cUserLabel,cOctalZero,cCppSkip,cErrInBracket,cErrInParen,cOctalError,cCppOut2,cCommentStartError,cParenError +syn cluster lexListPatCodeGroup contains=lexAbbrvBlock,lexAbbrv,lexAbbrv,lexAbbrvRegExp,lexInclude,lexPatBlock,lexPat,lexBrace,lexPatTag,lexPatTag,lexPatComment,lexPatCodeLine,lexMorePat,lexPatSep,lexSlashQuote,cInParen,cUserLabel,cOctalZero,cCppSkip,cErrInBracket,cErrInParen,cOctalError,cCppOut2,cCommentStartError,cParenError + +" Abbreviations Section +syn region lexAbbrvBlock start="^\([a-zA-Z_]\+\t\|%{\)" end="^%%$"me=e-2 skipnl nextgroup=lexPatBlock contains=lexAbbrv,lexInclude,lexAbbrvComment +syn match lexAbbrv "^\I\i*\s"me=e-1 skipwhite contained nextgroup=lexAbbrvRegExp +syn match lexAbbrv "^%[sx]" contained +syn match lexAbbrvRegExp "\s\S.*$"lc=1 contained nextgroup=lexAbbrv,lexInclude +syn region lexInclude matchgroup=lexSep start="^%{" end="%}" contained contains=ALLBUT,@lexListGroup +syn region lexAbbrvComment start="^\s\+/\*" end="\*/" contains=@Spell + +"%% : Patterns {Actions} +syn region lexPatBlock matchgroup=Todo start="^%%$" matchgroup=Todo end="^%%$" skipnl skipwhite contains=lexPat,lexPatTag,lexPatComment +syn region lexPat start=+\S+ skip="\\\\\|\\." end="\s"me=e-1 contained nextgroup=lexMorePat,lexPatSep contains=lexPatString,lexSlashQuote,lexBrace +syn region lexBrace start="\[" skip=+\\\\\|\\+ end="]" contained +syn region lexPatString matchgroup=String start=+"+ skip=+\\\\\|\\"+ matchgroup=String end=+"+ contained +syn match lexPatTag "^<\I\i*\(,\I\i*\)*>*" contained nextgroup=lexPat,lexPatTag,lexMorePat,lexPatSep +syn match lexPatTag +^<\I\i*\(,\I\i*\)*>*\(\\\\\)*\\"+ contained nextgroup=lexPat,lexPatTag,lexMorePat,lexPatSep +syn region lexPatComment start="^\s*/\*" end="\*/" skipnl contained contains=cTodo nextgroup=lexPatComment,lexPat,lexPatString,lexPatTag,@Spell +syn match lexPatCodeLine ".*$" contained contains=ALLBUT,@lexListGroup +syn match lexMorePat "\s*|\s*$" skipnl contained nextgroup=lexPat,lexPatTag,lexPatComment +syn match lexPatSep "\s\+" contained nextgroup=lexMorePat,lexPatCode,lexPatCodeLine +syn match lexSlashQuote +\(\\\\\)*\\"+ contained +syn region lexPatCode matchgroup=Delimiter start="{" matchgroup=Delimiter end="}" skipnl contained contains=ALLBUT,@lexListPatCodeGroup + +syn keyword lexCFunctions BEGIN input unput woutput yyleng yylook yytext +syn keyword lexCFunctions ECHO output winput wunput yyless yymore yywrap + +" <c.vim> includes several ALLBUTs; these have to be treated so as to exclude lex* groups +syn cluster cParenGroup add=lex.* +syn cluster cDefineGroup add=lex.* +syn cluster cPreProcGroup add=lex.* +syn cluster cMultiGroup add=lex.* + +" Synchronization +syn sync clear +syn sync minlines=300 +syn sync match lexSyncPat grouphere lexPatBlock "^%[a-zA-Z]" +syn sync match lexSyncPat groupthere lexPatBlock "^<$" +syn sync match lexSyncPat groupthere lexPatBlock "^%%$" + +" The default highlighting. +hi def link lexSlashQuote lexPat +hi def link lexBrace lexPat +hi def link lexAbbrvComment lexPatComment + +hi def link lexAbbrv SpecialChar +hi def link lexAbbrvRegExp Macro +hi def link lexCFunctions Function +hi def link lexMorePat SpecialChar +hi def link lexPat Function +hi def link lexPatComment Comment +hi def link lexPatString Function +hi def link lexPatTag Special +hi def link lexSep Delimiter + +let b:current_syntax = "lex" + +" vim:ts=10 |