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1 " Vim syntax file
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2 " Language: B (A Formal Method with refinement and mathematical proof)
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3 " Maintainer: Mathieu Clabaut <mathieu.clabaut@free.fr>
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4 " LastChange: 25 Apr 2001
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5
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6
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7 " For version 5.x: Clear all syntax items
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8 " For version 6.x: Quit when a syntax file was already loaded
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9 if version < 600
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10 syntax clear
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11 elseif exists("b:current_syntax")
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12 finish
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13 endif
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14
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15
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16 " A bunch of useful B keywords
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17 syn keyword bStatement MACHINE SEES OPERATIONS INCLUDES DEFINITIONS CONSTRAINTS CONSTANTS VARIABLES CONCRETE_CONSTANTS CONCRETE_VARIABLES ABSTRACT_CONSTANTS ABSTRACT_VARIABLES HIDDEN_CONSTANTS HIDDEN_VARIABLES ASSERT ASSERTIONS EXTENDS IMPLEMENTATION REFINEMENT IMPORTS USES INITIALISATION INVARIANT PROMOTES PROPERTIES REFINES SETS VALUES VARIANT VISIBLE_CONSTANTS VISIBLE_VARIABLES THEORY
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18 syn keyword bLabel CASE IN EITHER OR CHOICE DO OF
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19 syn keyword bConditional IF ELSE SELECT ELSIF THEN WHEN
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20 syn keyword bRepeat WHILE FOR
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21 syn keyword bOps bool card conc closure closure1 dom first fnc front not or id inter iseq iseq1 iterate last max min mod perm pred prj1 prj2 ran rel rev seq seq1 size skip succ tail union
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22 syn keyword bKeywords LET VAR BE IN BEGIN END POW POW1 FIN FIN1 PRE SIGMA STRING UNION IS ANY WHERE
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23 syn match bKeywords "||"
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24
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25 syn keyword bBoolean TRUE FALSE bfalse btrue
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26 syn keyword bConstant PI MAXINT MININT User_Pass PatchProver PatchProverH0 PatchProverB0 FLAT ARI DED SUB RES
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27 syn keyword bGuard binhyp band bnot bguard bsearch bflat bfresh bguardi bget bgethyp barith bgetresult bresult bgoal bmatch bmodr bnewv bnum btest bpattern bprintf bwritef bsubfrm bvrb blvar bcall bappend bclose
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28
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29 syn keyword bLogic or not
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30 syn match bLogic "\&\|=>\|<=>"
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31
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32 syn keyword cTodo contained TODO FIXME XXX
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33
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34 " String and Character constants
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35 " Highlight special characters (those which have a backslash) differently
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36 syn match bSpecial contained "\\[0-7][0-7][0-7]\=\|\\."
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37 syn region bString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=bSpecial
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38 syn match bCharacter "'[^\\]'"
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39 syn match bSpecialCharacter "'\\.'"
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40 syn match bSpecialCharacter "'\\[0-7][0-7]'"
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41 syn match bSpecialCharacter "'\\[0-7][0-7][0-7]'"
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42
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43 "catch errors caused by wrong parenthesis
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44 syn region bParen transparent start='(' end=')' contains=ALLBUT,bParenError,bIncluded,bSpecial,bTodo,bUserLabel,bBitField
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45 syn match bParenError ")"
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46 syn match bInParen contained "[{}]"
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47
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48 "integer number, or floating point number without a dot and with "f".
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49 syn case ignore
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50 syn match bNumber "\<[0-9]\+\>"
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51 "syn match bIdentifier "\<[a-z_][a-z0-9_]*\>"
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52 syn case match
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53
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54 if exists("b_comment_strings")
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55 " A comment can contain bString, bCharacter and bNumber.
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56 " But a "*/" inside a bString in a bComment DOES end the comment! So we
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57 " need to use a special type of bString: bCommentString, which also ends on
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58 " "*/", and sees a "*" at the start of the line as comment again.
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59 " Unfortunately this doesn't very well work for // type of comments :-(
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60 syntax match bCommentSkip contained "^\s*\*\($\|\s\+\)"
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61 syntax region bCommentString contained start=+"+ skip=+\\\\\|\\"+ end=+"+ end=+\*/+me=s-1 contains=bSpecial,bCommentSkip
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62 syntax region bComment2String contained start=+"+ skip=+\\\\\|\\"+ end=+"+ end="$" contains=bSpecial
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63 syntax region bComment start="/\*" end="\*/" contains=bTodo,bCommentString,bCharacter,bNumber,bFloat
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64 syntax region bComment start="/\?\*" end="\*\?/" contains=bTodo,bCommentString,bCharacter,bNumber,bFloat
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65 syntax match bComment "//.*" contains=bTodo,bComment2String,bCharacter,bNumber
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66 else
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67 syn region bComment start="/\*" end="\*/" contains=bTodo
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68 syn region bComment start="/\?\*" end="\*\?/" contains=bTodo
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69 syn match bComment "//.*" contains=bTodo
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70 endif
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71 syntax match bCommentError "\*/"
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72
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73 syn keyword bType INT INTEGER BOOL NAT NATURAL NAT1 NATURAL1
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74
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75 syn region bPreCondit start="^\s*#\s*\(if\>\|ifdef\>\|ifndef\>\|elif\>\|else\>\|endif\>\)" skip="\\$" end="$" contains=bComment,bString,bCharacter,bNumber,bCommentError
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76 syn region bIncluded contained start=+"+ skip=+\\\\\|\\"+ end=+"+
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77 syn match bIncluded contained "<[^>]*>"
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78 syn match bInclude "^\s*#\s*include\>\s*["<]" contains=bIncluded
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79
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80 syn region bDefine start="^\s*#\s*\(define\>\|undef\>\)" skip="\\$" end="$" contains=ALLBUT,bPreCondit,bIncluded,bInclude,bDefine,bInParen
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81 syn region bPreProc start="^\s*#\s*\(pragma\>\|line\>\|warning\>\|warn\>\|error\>\)" skip="\\$" end="$" contains=ALLBUT,bPreCondit,bIncluded,bInclude,bDefine,bInParen
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82
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83
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84 syn sync ccomment bComment minlines=10
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85
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86 " Define the default highlighting.
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87 " For version 5.7 and earlier: only when not done already
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88 " For version 5.8 and later: only when an item doesn't have highlighting yet
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89
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90 if version >= 508 || !exists("did_b_syntax_inits")
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91 if version < 508
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92 let did_b_syntax_inits = 1
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93 command -nargs=+ HiLink hi link <args>
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94 else
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95 command -nargs=+ HiLink hi def link <args>
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96 endif
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97
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98 " The default methods for highlighting. Can be overridden later
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99 HiLink bLabel Label
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100 HiLink bUserLabel Label
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101 HiLink bConditional Conditional
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102 HiLink bRepeat Repeat
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103 HiLink bLogic Special
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104 HiLink bCharacter Character
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105 HiLink bSpecialCharacter bSpecial
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106 HiLink bNumber Number
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107 HiLink bFloat Float
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108 HiLink bOctalError bError
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109 HiLink bParenError bError
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110 " HiLink bInParen bError
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111 HiLink bCommentError bError
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112 HiLink bBoolean Identifier
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113 HiLink bConstant Identifier
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114 HiLink bGuard Identifier
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115 HiLink bOperator Operator
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116 HiLink bKeywords Operator
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117 HiLink bOps Identifier
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118 HiLink bStructure Structure
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119 HiLink bStorageClass StorageClass
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120 HiLink bInclude Include
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121 HiLink bPreProc PreProc
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122 HiLink bDefine Macro
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123 HiLink bIncluded bString
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124 HiLink bError Error
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125 HiLink bStatement Statement
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126 HiLink bPreCondit PreCondit
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127 HiLink bType Type
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128 HiLink bCommentError bError
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129 HiLink bCommentString bString
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130 HiLink bComment2String bString
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131 HiLink bCommentSkip bComment
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132 HiLink bString String
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133 HiLink bComment Comment
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134 HiLink bSpecial SpecialChar
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135 HiLink bTodo Todo
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136 "hi link bIdentifier Identifier
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137 delcommand HiLink
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138 endif
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139
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140 let current_syntax = "b"
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141
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142 " vim: ts=8
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