" Vim syntax file
" Language:	AfLex (from Lex syntax file)
" Maintainer:	Mathieu Clabaut <mathieu.clabaut@free.fr>
" LastChange:	02 May 2001
" Original:	Lex, maintained by Dr. Charles E. Campbell, Jr.
" Comment:	Replaced sourcing c.vim file by ada.vim and rename lex*
"		in aflex*

" 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 Ada syntax to start with
if version < 600
   so <sfile>:p:h/ada.vim
else
   runtime! syntax/ada.vim
   unlet b:current_syntax
endif


" --- AfLex stuff ---

"I'd prefer to use aflex.* , but it doesn't handle forward definitions yet
syn cluster aflexListGroup		contains=aflexAbbrvBlock,aflexAbbrv,aflexAbbrv,aflexAbbrvRegExp,aflexInclude,aflexPatBlock,aflexPat,aflexBrace,aflexPatString,aflexPatTag,aflexPatTag,aflexPatComment,aflexPatCodeLine,aflexMorePat,aflexPatSep,aflexSlashQuote,aflexPatCode,cInParen,cUserLabel,cOctalZero,cCppSkip,cErrInBracket,cErrInParen,cOctalError,cCppOut2
syn cluster aflexListPatCodeGroup	contains=aflexAbbrvBlock,aflexAbbrv,aflexAbbrv,aflexAbbrvRegExp,aflexInclude,aflexPatBlock,aflexPat,aflexBrace,aflexPatTag,aflexPatTag,aflexPatComment,aflexPatCodeLine,aflexMorePat,aflexPatSep,aflexSlashQuote,cInParen,cUserLabel,cOctalZero,cCppSkip,cErrInBracket,cErrInParen,cOctalError,cCppOut2

" Abbreviations Section
syn region aflexAbbrvBlock	start="^\([a-zA-Z_]\+\t\|%{\)" end="^%%$"me=e-2	skipnl	nextgroup=aflexPatBlock contains=aflexAbbrv,aflexInclude,aflexAbbrvComment
syn match  aflexAbbrv		"^\I\i*\s"me=e-1			skipwhite	contained nextgroup=aflexAbbrvRegExp
syn match  aflexAbbrv		"^%[sx]"					contained
syn match  aflexAbbrvRegExp	"\s\S.*$"lc=1				contained nextgroup=aflexAbbrv,aflexInclude
syn region aflexInclude	matchgroup=aflexSep	start="^%{" end="%}"	contained	contains=ALLBUT,@aflexListGroup
syn region aflexAbbrvComment	start="^\s\+/\*"	end="\*/"

"%% : Patterns {Actions}
syn region aflexPatBlock	matchgroup=Todo	start="^%%$" matchgroup=Todo end="^%%$"	skipnl skipwhite contains=aflexPat,aflexPatTag,aflexPatComment
syn region aflexPat		start=+\S+ skip="\\\\\|\\."	end="\s"me=e-1	contained nextgroup=aflexMorePat,aflexPatSep contains=aflexPatString,aflexSlashQuote,aflexBrace
syn region aflexBrace	start="\[" skip=+\\\\\|\\+		end="]"		contained
syn region aflexPatString	matchgroup=String start=+"+	skip=+\\\\\|\\"+	matchgroup=String end=+"+	contained
syn match  aflexPatTag	"^<\I\i*\(,\I\i*\)*>*"			contained nextgroup=aflexPat,aflexPatTag,aflexMorePat,aflexPatSep
syn match  aflexPatTag	+^<\I\i*\(,\I\i*\)*>*\(\\\\\)*\\"+		contained nextgroup=aflexPat,aflexPatTag,aflexMorePat,aflexPatSep
syn region aflexPatComment	start="^\s*/\*" end="\*/"		skipnl	contained contains=cTodo nextgroup=aflexPatComment,aflexPat,aflexPatString,aflexPatTag
syn match  aflexPatCodeLine	".*$"					contained contains=ALLBUT,@aflexListGroup
syn match  aflexMorePat	"\s*|\s*$"			skipnl	contained nextgroup=aflexPat,aflexPatTag,aflexPatComment
syn match  aflexPatSep	"\s\+"					contained nextgroup=aflexMorePat,aflexPatCode,aflexPatCodeLine
syn match  aflexSlashQuote	+\(\\\\\)*\\"+				contained
syn region aflexPatCode matchgroup=Delimiter start="{" matchgroup=Delimiter end="}"	skipnl contained contains=ALLBUT,@aflexListPatCodeGroup

syn keyword aflexCFunctions	BEGIN	input	unput	woutput	yyleng	yylook	yytext
syn keyword aflexCFunctions	ECHO	output	winput	wunput	yyless	yymore	yywrap

" <c.vim> includes several ALLBUTs; these have to be treated so as to exclude aflex* groups
syn cluster cParenGroup	add=aflex.*
syn cluster cDefineGroup	add=aflex.*
syn cluster cPreProcGroup	add=aflex.*
syn cluster cMultiGroup	add=aflex.*

" Synchronization
syn sync clear
syn sync minlines=300
syn sync match aflexSyncPat	grouphere  aflexPatBlock	"^%[a-zA-Z]"
syn sync match aflexSyncPat	groupthere aflexPatBlock	"^<$"
syn sync match aflexSyncPat	groupthere aflexPatBlock	"^%%$"

" 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_aflex_syntax_inits")
   if version < 508
      let did_aflex_syntax_inits = 1
      command -nargs=+ HiLink hi link <args>
   else
      command -nargs=+ HiLink hi def link <args>
   endif
  HiLink	aflexSlashQuote	aflexPat
  HiLink	aflexBrace		aflexPat
  HiLink aflexAbbrvComment	aflexPatComment

  HiLink	aflexAbbrv		SpecialChar
  HiLink	aflexAbbrvRegExp	Macro
  HiLink	aflexCFunctions	Function
  HiLink	aflexMorePat	SpecialChar
  HiLink	aflexPat		Function
  HiLink	aflexPatComment	Comment
  HiLink	aflexPatString	Function
  HiLink	aflexPatTag		Special
  HiLink	aflexSep		Delimiter
  delcommand HiLink
endif

let b:current_syntax = "aflex"

" vim:ts=10