" Vim syntax file for OpenGL ARB vertex programs
" Language:     ARBvp
" Author:       Camilla Berglund <elmindreda@elmindreda.org>
" Date:         July 19, 2006
" File Types:   .vp .vert
" Version:      0.1

if version < 600
  syntax clear
elseif exists("b:current_syntax")
  finish
endif

syn case match

syn keyword opcode RSQ MAD EX2 ABS SGE MAX EXP ADD SLT MIN FLR ARL DST
syn keyword opcode SUB MOV FRC DP3 SWZ MUL LG2 DP4 XPD POW LIT DPH RCP LOG

syn keyword declaration ADDRESS ATTRIB ALIAS PARAM OUTPUT TEMP

syn keyword special END OPTION

syn keyword option ARB_position_invariant

syn match identifier "[_a-zA-Z$][_a-zA-Z0-9$]*"

syn match header     "!!ARBvp[0-9]\.[0-9]"

syn match comment    "#.*"

syn match integer    "[-+]\=[0-9]\+"
syn match float      "[-+]\=[0-9]\+\.[0-9]*"
syn match float      "[-+]\=[0-9]*\.[0-9]\+"

syn region block start="{" end="}" contains=identifier,integer,float

if version >= 508 || !exists("did_arbvp_syntax_inits")
  if version < 508
    let did_arbvp_syntax_inits = 1
    command -nargs=+ HiLink hi link <args>
  else
    command -nargs=+ HiLink hi def link <args>
  endif

  HiLink opcode                 Keyword
  HiLink special                Keyword
  HiLink header                 Keyword
  HiLink declaration            Keyword
  HiLink option			Keyword

  HiLink comment		Comment

  HiLink identifier		Identifier

  HiLink integer                Number
  HiLink float        	        Number

  delcommand HiLink
endif

let b:current_syntax = "arbvp"