" Vim syntax file
" Language:		lace
" Maintainer:	Jocelyn Fiat <utilities@eiffel.com>
" Last Change:	2001 May 09

" Copyright Interactive Software Engineering, 1998
" You are free to use this file as you please, but
" if you make a change or improvement you must send
" it to the maintainer at <utilities@eiffel.com>


" 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

" LACE is case insensitive, but the style guide lines are not.

if !exists("lace_case_insensitive")
	syn case match
else
	syn case ignore
endif

" A bunch of useful LACE keywords
syn keyword laceTopStruct		system root default option visible cluster
syn keyword laceTopStruct		external generate end
syn keyword laceOptionClause	collect assertion debug optimize trace
syn keyword laceOptionClause	profile inline precompiled multithreaded
syn keyword laceOptionClause	exception_trace dead_code_removal
syn keyword laceOptionClause	array_optimization
syn keyword laceOptionClause	inlining_size inlining
syn keyword laceOptionClause	console_application dynamic_runtime
syn keyword laceOptionClause	line_generation
syn keyword laceOptionMark		yes no all
syn keyword laceOptionMark		require ensure invariant loop check
syn keyword laceClusterProp		use include exclude
syn keyword laceAdaptClassName	adapt ignore rename as
syn keyword laceAdaptClassName	creation export visible
syn keyword laceExternal		include_path object makefile

" Operators
syn match   laceOperator		"\$"
syn match   laceBrackets		"[[\]]"
syn match   laceExport			"[{}]"

" Constants
syn keyword laceBool		true false
syn keyword laceBool		True False
syn region  laceString		start=+"+ skip=+%"+ end=+"+ contains=laceEscape,laceStringError
syn match   laceEscape		contained "%[^/]"
syn match   laceEscape		contained "%/\d\+/"
syn match   laceEscape		contained "^[ \t]*%"
syn match   laceEscape		contained "%[ \t]*$"
syn match   laceStringError	contained "%/[^0-9]"
syn match   laceStringError	contained "%/\d\+[^0-9/]"
syn match   laceStringError	"'\(%[^/]\|%/\d\+/\|[^'%]\)\+'"
syn match   laceCharacter	"'\(%[^/]\|%/\d\+/\|[^'%]\)'" contains=laceEscape
syn match   laceNumber		"-\=\<\d\+\(_\d\+\)*\>"
syn match   laceNumber		"\<[01]\+[bB]\>"
syn match   laceNumber		"-\=\<\d\+\(_\d\+\)*\.\(\d\+\(_\d\+\)*\)\=\([eE][-+]\=\d\+\(_\d\+\)*\)\="
syn match   laceNumber		"-\=\.\d\+\(_\d\+\)*\([eE][-+]\=\d\+\(_\d\+\)*\)\="
syn match   laceComment		"--.*" contains=laceTodo


syn case match

" Case sensitive stuff

syn keyword laceTodo		TODO XXX FIXME
syn match	laceClassName	"\<[A-Z][A-Z0-9_]*\>"
syn match	laceCluster		"[a-zA-Z][a-zA-Z0-9_]*\s*:"
syn match	laceCluster		"[a-zA-Z][a-zA-Z0-9_]*\s*(\s*[a-zA-Z][a-zA-Z0-9_]*\s*)\s*:"

" Catch mismatched parentheses
syn match laceParenError	")"
syn match laceBracketError	"\]"
syn region laceGeneric		transparent matchgroup=laceBrackets start="\[" end="\]" contains=ALLBUT,laceBracketError
syn region laceParen		transparent start="(" end=")" contains=ALLBUT,laceParenError

" Should suffice for even very long strings and expressions
syn sync lines=40

" 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_lace_syntax_inits")
  if version < 508
    let did_lace_syntax_inits = 1
    command -nargs=+ HiLink hi link <args>
  else
    command -nargs=+ HiLink hi def link <args>
  endif

  HiLink laceTopStruct			PreProc

  HiLink laceOptionClause		Statement
  HiLink laceOptionMark			Constant
  HiLink laceClusterProp		Label
  HiLink laceAdaptClassName		Label
  HiLink laceExternal			Statement
  HiLink laceCluster			ModeMsg

  HiLink laceEscape				Special

  HiLink laceBool				Boolean
  HiLink laceString				String
  HiLink laceCharacter			Character
  HiLink laceClassName			Type
  HiLink laceNumber				Number

  HiLink laceOperator			Special
  HiLink laceArray				Special
  HiLink laceExport				Special
  HiLink laceCreation			Special
  HiLink laceBrackets			Special
  HiLink laceConstraint			Special

  HiLink laceComment			Comment

  HiLink laceError				Error
  HiLink laceStringError		Error
  HiLink laceParenError			Error
  HiLink laceBracketError		Error
  HiLink laceTodo				Todo

  delcommand HiLink
endif

let b:current_syntax = "lace"

" vim: ts=4