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1 " Vim syntax file
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2 " Language: Renderman shader language
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3 " Maintainer: Dan Piponi <dan@tanelorn.demon.co.uk>
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4 " Last Change: 2001 May 09
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5
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6 " For version 5.x: Clear all syntax items
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7 " For version 6.x: Quit when a syntax file was already loaded
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8 if version < 600
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9 syntax clear
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10 elseif exists("b:current_syntax")
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11 finish
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12 endif
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13
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14 " A bunch of useful Renderman keywords including special
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15 " RenderMan control structures
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16 syn keyword slStatement break return continue
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17 syn keyword slConditional if else
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18 syn keyword slRepeat while for
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19 syn keyword slRepeat illuminance illuminate solar
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20
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21 syn keyword slTodo contained TODO FIXME XXX
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22
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23 " String and Character constants
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24 " Highlight special characters (those which have a backslash) differently
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25 syn match slSpecial contained "\\[0-9][0-9][0-9]\|\\."
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26 syn region slString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=slSpecial
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27 syn match slCharacter "'[^\\]'"
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28 syn match slSpecialCharacter "'\\.'"
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29 syn match slSpecialCharacter "'\\[0-9][0-9]'"
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30 syn match slSpecialCharacter "'\\[0-9][0-9][0-9]'"
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31
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32 "catch errors caused by wrong parenthesis
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33 syn region slParen transparent start='(' end=')' contains=ALLBUT,slParenError,slIncluded,slSpecial,slTodo,slUserLabel
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34 syn match slParenError ")"
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35 syn match slInParen contained "[{}]"
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36
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37 "integer number, or floating point number without a dot and with "f".
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38 syn case ignore
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39 syn match slNumber "\<[0-9]\+\(u\=l\=\|lu\|f\)\>"
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40 "floating point number, with dot, optional exponent
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41 syn match slFloat "\<[0-9]\+\.[0-9]*\(e[-+]\=[0-9]\+\)\=[fl]\=\>"
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42 "floating point number, starting with a dot, optional exponent
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43 syn match slFloat "\.[0-9]\+\(e[-+]\=[0-9]\+\)\=[fl]\=\>"
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44 "floating point number, without dot, with exponent
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45 syn match slFloat "\<[0-9]\+e[-+]\=[0-9]\+[fl]\=\>"
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46 "hex number
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47 syn match slNumber "\<0x[0-9a-f]\+\(u\=l\=\|lu\)\>"
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48 "syn match slIdentifier "\<[a-z_][a-z0-9_]*\>"
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49 syn case match
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50
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51 if exists("sl_comment_strings")
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52 " A comment can contain slString, slCharacter and slNumber.
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53 " But a "*/" inside a slString in a slComment DOES end the comment! So we
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54 " need to use a special type of slString: slCommentString, which also ends on
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55 " "*/", and sees a "*" at the start of the line as comment again.
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56 " Unfortunately this doesn't very well work for // type of comments :-(
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57 syntax match slCommentSkip contained "^\s*\*\($\|\s\+\)"
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58 syntax region slCommentString contained start=+"+ skip=+\\\\\|\\"+ end=+"+ end=+\*/+me=s-1 contains=slSpecial,slCommentSkip
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59 syntax region slComment2String contained start=+"+ skip=+\\\\\|\\"+ end=+"+ end="$" contains=slSpecial
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60 syntax region slComment start="/\*" end="\*/" contains=slTodo,slCommentString,slCharacter,slNumber
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61 else
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62 syn region slComment start="/\*" end="\*/" contains=slTodo
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63 endif
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64 syntax match slCommentError "\*/"
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65
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66 syn keyword slOperator sizeof
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67 syn keyword slType float point color string vector normal matrix void
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68 syn keyword slStorageClass varying uniform extern
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69 syn keyword slStorageClass light surface volume displacement transformation imager
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70 syn keyword slVariable Cs Os P dPdu dPdv N Ng u v du dv s t
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71 syn keyword slVariable L Cl Ol E I ncomps time Ci Oi
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72 syn keyword slVariable Ps alpha
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73 syn keyword slVariable dtime dPdtime
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74
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75 syn sync ccomment slComment minlines=10
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76
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77 " Define the default highlighting.
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78 " For version 5.7 and earlier: only when not done already
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79 " For version 5.8 and later: only when an item doesn't have highlighting yet
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80 if version >= 508 || !exists("did_sl_syntax_inits")
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81 if version < 508
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82 let did_sl_syntax_inits = 1
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83 command -nargs=+ HiLink hi link <args>
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84 else
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85 command -nargs=+ HiLink hi def link <args>
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86 endif
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87
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88 HiLink slLabel Label
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89 HiLink slUserLabel Label
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90 HiLink slConditional Conditional
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91 HiLink slRepeat Repeat
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92 HiLink slCharacter Character
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93 HiLink slSpecialCharacter slSpecial
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94 HiLink slNumber Number
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95 HiLink slFloat Float
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96 HiLink slParenError slError
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97 HiLink slInParen slError
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98 HiLink slCommentError slError
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99 HiLink slOperator Operator
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100 HiLink slStorageClass StorageClass
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101 HiLink slError Error
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102 HiLink slStatement Statement
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103 HiLink slType Type
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104 HiLink slCommentError slError
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105 HiLink slCommentString slString
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106 HiLink slComment2String slString
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107 HiLink slCommentSkip slComment
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108 HiLink slString String
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109 HiLink slComment Comment
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110 HiLink slSpecial SpecialChar
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111 HiLink slTodo Todo
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112 HiLink slVariable Identifier
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113 "HiLink slIdentifier Identifier
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114
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115 delcommand HiLink
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116 endif
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117
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118 let b:current_syntax = "sl"
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119
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120 " vim: ts=8
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