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7
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1 " Vim syntax file
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2 " Language: Lex
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3 " Maintainer: Dr. Charles E. Campbell, Jr. <NdrOchipS@PcampbellAfamily.Mbiz>
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36
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4 " Last Change: Nov 26, 2004
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5 " Version: 6
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7
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6 " URL: http://www.erols.com/astronaut/vim/index.html#vimlinks_syntax
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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 syntax to start with
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20 if version >= 600
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21 if exists("lex_uses_cpp")
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22 runtime! syntax/cpp.vim
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23 else
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24 runtime! syntax/c.vim
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25 endif
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26 unlet b:current_syntax
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27 else
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28 if exists("lex_uses_cpp")
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29 so <sfile>:p:h/cpp.vim
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30 else
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31 so <sfile>:p:h/c.vim
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32 endif
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33 endif
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34
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22
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35 " --- ========= ---
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7
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36 " --- Lex stuff ---
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22
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37 " --- ========= ---
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7
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38
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39 "I'd prefer to use lex.* , but it doesn't handle forward definitions yet
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40 syn cluster lexListGroup contains=lexAbbrvBlock,lexAbbrv,lexAbbrv,lexAbbrvRegExp,lexInclude,lexPatBlock,lexPat,lexBrace,lexPatString,lexPatTag,lexPatTag,lexPatComment,lexPatCodeLine,lexMorePat,lexPatSep,lexSlashQuote,lexPatCode,cInParen,cUserLabel,cOctalZero,cCppSkip,cErrInBracket,cErrInParen,cOctalError,cCppOut2,cCommentStartError,cParenError
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41 syn cluster lexListPatCodeGroup contains=lexAbbrvBlock,lexAbbrv,lexAbbrv,lexAbbrvRegExp,lexInclude,lexPatBlock,lexPat,lexBrace,lexPatTag,lexPatTag,lexPatComment,lexPatCodeLine,lexMorePat,lexPatSep,lexSlashQuote,cInParen,cUserLabel,cOctalZero,cCppSkip,cErrInBracket,cErrInParen,cOctalError,cCppOut2,cCommentStartError,cParenError
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42
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43 " Abbreviations Section
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22
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44 syn region lexAbbrvBlock start="^\(\h\+\s\|%{\)" end="^\ze%%$" skipnl nextgroup=lexPatBlock contains=lexAbbrv,lexInclude,lexAbbrvComment,lexStartState
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7
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45 syn match lexAbbrv "^\I\i*\s"me=e-1 skipwhite contained nextgroup=lexAbbrvRegExp
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46 syn match lexAbbrv "^%[sx]" contained
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47 syn match lexAbbrvRegExp "\s\S.*$"lc=1 contained nextgroup=lexAbbrv,lexInclude
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48 syn region lexInclude matchgroup=lexSep start="^%{" end="%}" contained contains=ALLBUT,@lexListGroup
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49 syn region lexAbbrvComment start="^\s\+/\*" end="\*/" contains=@Spell
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22
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50 syn region lexStartState matchgroup=lexAbbrv start="^%\a\+" end="$" contained
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7
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51
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52 "%% : Patterns {Actions}
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53 syn region lexPatBlock matchgroup=Todo start="^%%$" matchgroup=Todo end="^%%$" skipnl skipwhite contains=lexPat,lexPatTag,lexPatComment
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54 syn region lexPat start=+\S+ skip="\\\\\|\\." end="\s"me=e-1 contained nextgroup=lexMorePat,lexPatSep contains=lexPatString,lexSlashQuote,lexBrace
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55 syn region lexBrace start="\[" skip=+\\\\\|\\+ end="]" contained
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56 syn region lexPatString matchgroup=String start=+"+ skip=+\\\\\|\\"+ matchgroup=String end=+"+ contained
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57 syn match lexPatTag "^<\I\i*\(,\I\i*\)*>*" contained nextgroup=lexPat,lexPatTag,lexMorePat,lexPatSep
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58 syn match lexPatTag +^<\I\i*\(,\I\i*\)*>*\(\\\\\)*\\"+ contained nextgroup=lexPat,lexPatTag,lexMorePat,lexPatSep
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36
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59 syn region lexPatComment start="^\s*/\*" end="\*/" skipnl contained contains=cTodo skipwhite nextgroup=lexPatComment,lexPat,@Spell
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7
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60 syn match lexPatCodeLine ".*$" contained contains=ALLBUT,@lexListGroup
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61 syn match lexMorePat "\s*|\s*$" skipnl contained nextgroup=lexPat,lexPatTag,lexPatComment
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62 syn match lexPatSep "\s\+" contained nextgroup=lexMorePat,lexPatCode,lexPatCodeLine
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63 syn match lexSlashQuote +\(\\\\\)*\\"+ contained
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64 syn region lexPatCode matchgroup=Delimiter start="{" matchgroup=Delimiter end="}" skipnl contained contains=ALLBUT,@lexListPatCodeGroup
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65
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66 syn keyword lexCFunctions BEGIN input unput woutput yyleng yylook yytext
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67 syn keyword lexCFunctions ECHO output winput wunput yyless yymore yywrap
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68
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69 " <c.vim> includes several ALLBUTs; these have to be treated so as to exclude lex* groups
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70 syn cluster cParenGroup add=lex.*
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71 syn cluster cDefineGroup add=lex.*
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72 syn cluster cPreProcGroup add=lex.*
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73 syn cluster cMultiGroup add=lex.*
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74
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75 " Synchronization
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76 syn sync clear
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77 syn sync minlines=300
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78 syn sync match lexSyncPat grouphere lexPatBlock "^%[a-zA-Z]"
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79 syn sync match lexSyncPat groupthere lexPatBlock "^<$"
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80 syn sync match lexSyncPat groupthere lexPatBlock "^%%$"
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81
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82 " The default highlighting.
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83 hi def link lexSlashQuote lexPat
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84 hi def link lexBrace lexPat
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85 hi def link lexAbbrvComment lexPatComment
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86
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22
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87 hi def link lexAbbrvRegExp Macro
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7
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88 hi def link lexAbbrv SpecialChar
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89 hi def link lexCFunctions Function
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90 hi def link lexMorePat SpecialChar
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22
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91 hi def link lexPatComment Comment
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7
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92 hi def link lexPat Function
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93 hi def link lexPatString Function
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94 hi def link lexPatTag Special
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95 hi def link lexSep Delimiter
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22
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96 hi def link lexStartState Statement
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7
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97
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98 let b:current_syntax = "lex"
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99
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100 " vim:ts=10
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