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7
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1 " Vim syntax file
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2 " Language: Lex
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3920
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3 " Maintainer: Charles E. Campbell <NdrOchipS@PcampbellAfamily.Mbiz>
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4 " Last Change: Nov 14, 2012
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5 " Version: 14
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507
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6 " URL: http://mysite.verizon.net/astronaut/vim/index.html#vimlinks_syntax
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7
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7 "
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8 " Option:
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9 " lex_uses_cpp : if this variable exists, then C++ is loaded rather than C
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10
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11 " For version 5.x: Clear all syntax items
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12 " For version 6.x: Quit when a syntax file was already loaded
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13 if version < 600
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14 syntax clear
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15 elseif exists("b:current_syntax")
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16 finish
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17 endif
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18
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19 " Read the C/C++ syntax to start with
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20 let s:Cpath= fnameescape(expand("<sfile>:p:h").(exists("g:lex_uses_cpp")? "/cpp.vim" : "/c.vim"))
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21 if !filereadable(s:Cpath)
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22 for s:Cpath in split(globpath(&rtp,(exists("g:lex_uses_cpp")? "syntax/cpp.vim" : "syntax/c.vim")),"\n")
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23 if filereadable(fnameescape(s:Cpath))
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24 let s:Cpath= fnameescape(s:Cpath)
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25 break
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7
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26 endif
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27 endfor
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7
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28 endif
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29 exe "syn include @lexCcode ".s:Cpath
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30
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22
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31 " --- ========= ---
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32 " --- Lex stuff ---
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22
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33 " --- ========= ---
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7
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34
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35 " Options Section
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36 syn match lexOptions '^%\s*option\>.*$' contains=lexPatString
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37
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38 " Abbreviations Section
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39 if has("folding")
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40 syn region lexAbbrvBlock fold start="^\(\h\+\s\|%{\)" end="^\ze%%$" skipnl nextgroup=lexPatBlock contains=lexAbbrv,lexInclude,lexAbbrvComment,lexStartState
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41 else
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42 syn region lexAbbrvBlock start="^\(\h\+\s\|%{\)" end="^\ze%%$" skipnl nextgroup=lexPatBlock contains=lexAbbrv,lexInclude,lexAbbrvComment,lexStartState
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43 endif
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7
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44 syn match lexAbbrv "^\I\i*\s"me=e-1 skipwhite contained nextgroup=lexAbbrvRegExp
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45 syn match lexAbbrv "^%[sx]" contained
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46 syn match lexAbbrvRegExp "\s\S.*$"lc=1 contained nextgroup=lexAbbrv,lexInclude
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47 if has("folding")
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48 syn region lexInclude fold matchgroup=lexSep start="^%{" end="%}" contained contains=@lexCcode
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49 syn region lexAbbrvComment fold start="^\s\+/\*" end="\*/" contains=@Spell
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50 syn region lexAbbrvComment fold start="\%^/\*" end="\*/" contains=@Spell
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51 syn region lexStartState fold matchgroup=lexAbbrv start="^%\a\+" end="$" contained
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52 else
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53 syn region lexInclude matchgroup=lexSep start="^%{" end="%}" contained contains=@lexCcode
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54 syn region lexAbbrvComment start="^\s\+/\*" end="\*/" contains=@Spell
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55 syn region lexAbbrvComment start="\%^/\*" end="\*/" contains=@Spell
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56 syn region lexStartState matchgroup=lexAbbrv start="^%\a\+" end="$" contained
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57 endif
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58
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59 "%% : Patterns {Actions}
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60 if has("folding")
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61 syn region lexPatBlock fold matchgroup=Todo start="^%%$" matchgroup=Todo end="^%\ze%$" skipnl skipwhite nextgroup=lexFinalCodeBlock contains=lexPatTag,lexPatTagZone,lexPatComment,lexPat,lexPatInclude
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62 syn region lexPat fold start=+\S+ skip="\\\\\|\\." end="\s"me=e-1 skipwhite contained nextgroup=lexMorePat,lexPatSep,lexPattern contains=lexPatTag,lexPatString,lexSlashQuote,lexBrace
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63 syn region lexPatInclude fold matchgroup=lexSep start="^%{" end="%}" contained contains=lexPatCode
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64 syn region lexBrace fold start="\[" skip=+\\\\\|\\+ end="]" contained
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65 syn region lexPatString fold matchgroup=String start=+"+ skip=+\\\\\|\\"+ matchgroup=String end=+"+ contained
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66 else
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67 syn region lexPatBlock matchgroup=Todo start="^%%$" matchgroup=Todo end="^%%$" skipnl skipwhite nextgroup=lexFinalCodeBlock contains=lexPatTag,lexPatTagZone,lexPatComment,lexPat,lexPatInclude
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68 syn region lexPat start=+\S+ skip="\\\\\|\\." end="\s"me=e-1 skipwhite contained nextgroup=lexMorePat,lexPatSep,lexPattern contains=lexPatTag,lexPatString,lexSlashQuote,lexBrace
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69 syn region lexPatInclude matchgroup=lexSep start="^%{" end="%}" contained contains=lexPatCode
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70 syn region lexBrace start="\[" skip=+\\\\\|\\+ end="]" contained
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71 syn region lexPatString matchgroup=String start=+"+ skip=+\\\\\|\\"+ matchgroup=String end=+"+ contained
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72 endif
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73 syn match lexPatTag "^<\I\i*\(,\I\i*\)*>" contained nextgroup=lexPat,lexPatTag,lexMorePat,lexPatSep
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74 syn match lexPatTagZone "^<\I\i*\(,\I\i*\)*>\s\+\ze{" contained nextgroup=lexPatTagZoneStart
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75 syn match lexPatTag +^<\I\i*\(,\I\i*\)*>*\(\\\\\)*\\"+ contained nextgroup=lexPat,lexPatTag,lexMorePat,lexPatSep
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76
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77 " Lex Patterns
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78 syn region lexPattern start='[^ \t{}]' end="$" contained contains=lexPatRange
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79 syn region lexPatRange matchgroup=Delimiter start='\[' skip='\\\\\|\\.' end='\]' contains=lexEscape
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80 syn match lexEscape '\%(\\\\\)*\\.' contained
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81
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82 if has("folding")
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83 syn region lexPatTagZoneStart matchgroup=lexPatTag fold start='{' end='}' contained contains=lexPat,lexPatComment
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84 syn region lexPatComment start="\s\+/\*" end="\*/" fold skipnl contained contains=cTodo skipwhite nextgroup=lexPatComment,lexPat,@Spell
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85 else
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86 syn region lexPatTagZoneStart matchgroup=lexPatTag start='{' end='}' contained contains=lexPat,lexPatComment
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87 syn region lexPatComment start="\s\+/\*" end="\*/" skipnl contained contains=cTodo skipwhite nextgroup=lexPatComment,lexPat,@Spell
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88 endif
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89 syn match lexPatCodeLine "[^{\[].*" contained contains=@lexCcode
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90 syn match lexMorePat "\s*|\s*$" skipnl contained nextgroup=lexPat,lexPatTag,lexPatComment
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91 syn match lexPatSep "\s\+" contained nextgroup=lexMorePat,lexPatCode,lexPatCodeLine
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92 syn match lexSlashQuote +\(\\\\\)*\\"+ contained
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93 if has("folding")
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94 syn region lexPatCode matchgroup=Delimiter start="{" end="}" fold skipnl contained contains=@lexCcode,lexCFunctions
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95 else
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96 syn region lexPatCode matchgroup=Delimiter start="{" end="}" skipnl contained contains=@lexCcode,lexCFunctions
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97 endif
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98
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99 " Lex "functions" which may appear in C/C++ code blocks
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100 syn keyword lexCFunctions BEGIN input unput woutput yyleng yylook yytext
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101 syn keyword lexCFunctions ECHO output winput wunput yyless yymore yywrap
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102
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103 " %%
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104 " lexAbbrevBlock
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105 " %%
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106 " lexPatBlock
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107 " %%
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108 " lexFinalCodeBlock
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109 syn region lexFinalCodeBlock matchgroup=Todo start="%$"me=e-1 end="\%$" contained contains=@lexCcode
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110
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111 " <c.vim> includes several ALLBUTs; these have to be treated so as to exclude lex* groups
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112 syn cluster cParenGroup add=lex.*
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113 syn cluster cDefineGroup add=lex.*
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114 syn cluster cPreProcGroup add=lex.*
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115 syn cluster cMultiGroup add=lex.*
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116
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117 " Synchronization
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118 syn sync clear
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119 syn sync minlines=500
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120 syn sync match lexSyncPat grouphere lexPatBlock "^%[a-zA-Z]"
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121 syn sync match lexSyncPat groupthere lexPatBlock "^<$"
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122 syn sync match lexSyncPat groupthere lexPatBlock "^%%$"
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123
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124 " The default highlighting.
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125 hi def link lexAbbrvComment lexPatComment
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22
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126 hi def link lexAbbrvRegExp Macro
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127 hi def link lexAbbrv SpecialChar
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128 hi def link lexBrace lexPat
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129 hi def link lexCFunctions Function
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130 hi def link lexCstruct cStructure
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131 hi def link lexMorePat SpecialChar
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132 hi def link lexOptions PreProc
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133 hi def link lexPatComment Comment
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134 hi def link lexPat Function
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135 hi def link lexPatString Function
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136 hi def link lexPatTag Special
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137 hi def link lexPatTagZone lexPatTag
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138 hi def link lexSep Delimiter
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139 hi def link lexSlashQuote lexPat
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140 hi def link lexStartState Statement
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141
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142 let b:current_syntax = "lex"
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143
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144 " vim:ts=10
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