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+" Vim syntax file
+" Language: Renderman shader language
+" Maintainer: Dan Piponi <dan@tanelorn.demon.co.uk>
+" Last Change: 2001 May 09
+
+" 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
+
+" A bunch of useful Renderman keywords including special
+" RenderMan control structures
+syn keyword slStatement break return continue
+syn keyword slConditional if else
+syn keyword slRepeat while for
+syn keyword slRepeat illuminance illuminate solar
+
+syn keyword slTodo contained TODO FIXME XXX
+
+" String and Character constants
+" Highlight special characters (those which have a backslash) differently
+syn match slSpecial contained "\\[0-9][0-9][0-9]\|\\."
+syn region slString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=slSpecial
+syn match slCharacter "'[^\\]'"
+syn match slSpecialCharacter "'\\.'"
+syn match slSpecialCharacter "'\\[0-9][0-9]'"
+syn match slSpecialCharacter "'\\[0-9][0-9][0-9]'"
+
+"catch errors caused by wrong parenthesis
+syn region slParen transparent start='(' end=')' contains=ALLBUT,slParenError,slIncluded,slSpecial,slTodo,slUserLabel
+syn match slParenError ")"
+syn match slInParen contained "[{}]"
+
+"integer number, or floating point number without a dot and with "f".
+syn case ignore
+syn match slNumber "\<[0-9]\+\(u\=l\=\|lu\|f\)\>"
+"floating point number, with dot, optional exponent
+syn match slFloat "\<[0-9]\+\.[0-9]*\(e[-+]\=[0-9]\+\)\=[fl]\=\>"
+"floating point number, starting with a dot, optional exponent
+syn match slFloat "\.[0-9]\+\(e[-+]\=[0-9]\+\)\=[fl]\=\>"
+"floating point number, without dot, with exponent
+syn match slFloat "\<[0-9]\+e[-+]\=[0-9]\+[fl]\=\>"
+"hex number
+syn match slNumber "\<0x[0-9a-f]\+\(u\=l\=\|lu\)\>"
+"syn match slIdentifier "\<[a-z_][a-z0-9_]*\>"
+syn case match
+
+if exists("sl_comment_strings")
+ " A comment can contain slString, slCharacter and slNumber.
+ " But a "*/" inside a slString in a slComment DOES end the comment! So we
+ " need to use a special type of slString: slCommentString, which also ends on
+ " "*/", and sees a "*" at the start of the line as comment again.
+ " Unfortunately this doesn't very well work for // type of comments :-(
+ syntax match slCommentSkip contained "^\s*\*\($\|\s\+\)"
+ syntax region slCommentString contained start=+"+ skip=+\\\\\|\\"+ end=+"+ end=+\*/+me=s-1 contains=slSpecial,slCommentSkip
+ syntax region slComment2String contained start=+"+ skip=+\\\\\|\\"+ end=+"+ end="$" contains=slSpecial
+ syntax region slComment start="/\*" end="\*/" contains=slTodo,slCommentString,slCharacter,slNumber
+else
+ syn region slComment start="/\*" end="\*/" contains=slTodo
+endif
+syntax match slCommentError "\*/"
+
+syn keyword slOperator sizeof
+syn keyword slType float point color string vector normal matrix void
+syn keyword slStorageClass varying uniform extern
+syn keyword slStorageClass light surface volume displacement transformation imager
+syn keyword slVariable Cs Os P dPdu dPdv N Ng u v du dv s t
+syn keyword slVariable L Cl Ol E I ncomps time Ci Oi
+syn keyword slVariable Ps alpha
+syn keyword slVariable dtime dPdtime
+
+syn sync ccomment slComment minlines=10
+
+" 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_sl_syntax_inits")
+ if version < 508
+ let did_sl_syntax_inits = 1
+ command -nargs=+ HiLink hi link <args>
+ else
+ command -nargs=+ HiLink hi def link <args>
+ endif
+
+ HiLink slLabel Label
+ HiLink slUserLabel Label
+ HiLink slConditional Conditional
+ HiLink slRepeat Repeat
+ HiLink slCharacter Character
+ HiLink slSpecialCharacter slSpecial
+ HiLink slNumber Number
+ HiLink slFloat Float
+ HiLink slParenError slError
+ HiLink slInParen slError
+ HiLink slCommentError slError
+ HiLink slOperator Operator
+ HiLink slStorageClass StorageClass
+ HiLink slError Error
+ HiLink slStatement Statement
+ HiLink slType Type
+ HiLink slCommentError slError
+ HiLink slCommentString slString
+ HiLink slComment2String slString
+ HiLink slCommentSkip slComment
+ HiLink slString String
+ HiLink slComment Comment
+ HiLink slSpecial SpecialChar
+ HiLink slTodo Todo
+ HiLink slVariable Identifier
+ "HiLink slIdentifier Identifier
+
+ delcommand HiLink
+endif
+
+let b:current_syntax = "sl"
+
+" vim: ts=8