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1 " Vim syntax file
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2 " Language: Yacc
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3 " Maintainer: Charles E. Campbell, Jr. <NdrOchipS@PcampbellAfamily.Mbiz>
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4 " Last Change: Oct 21, 2008
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5 " Version: 7
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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 " Options: {{{1
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9 " g:yacc_uses_cpp : if this variable exists, then C++ is loaded rather than C
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11 " ---------------------------------------------------------------------
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12 " this version of syntax/yacc.vim requires 6.0 or later
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13 if version < 600
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14 finish
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15 endif
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16 if exists("b:current_syntax")
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17 syntax clear
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18 endif
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19
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20 " ---------------------------------------------------------------------
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21 " Folding Support {{{1
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22 if has("folding")
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23 com! -nargs=+ HiFold <args> fold
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24 else
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25 com! -nargs=+ HiFold <args>
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26 endif
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27
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28 " ---------------------------------------------------------------------
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29 " Read the C syntax to start with {{{1
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30 if exists("g:yacc_uses_cpp")
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31 syn include @yaccCode <sfile>:p:h/cpp.vim
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32 else
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33 syn include @yaccCode <sfile>:p:h/c.vim
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34 endif
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35
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36 " ---------------------------------------------------------------------
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37 " Yacc Clusters: {{{1
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38 syn cluster yaccInitCluster contains=yaccKey,yaccKeyActn,yaccBrkt,yaccType,yaccString,yaccUnionStart,yaccHeader2,yaccComment
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39 syn cluster yaccRulesCluster contains=yaccNonterminal,yaccString
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40
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41 " ---------------------------------------------------------------------
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42 " Yacc Sections: {{{1
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43 HiFold syn region yaccInit start='.'ms=s-1,rs=s-1 matchgroup=yaccSectionSep end='^%%$'me=e-2,re=e-2 contains=@yaccInitCluster nextgroup=yaccRules skipwhite skipempty contained
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44 HiFold syn region yaccInit2 start='\%^.'ms=s-1,rs=s-1 matchgroup=yaccSectionSep end='^%%$'me=e-2,re=e-2 contains=@yaccInitCluster nextgroup=yaccRules skipwhite skipempty
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45 HiFold syn region yaccHeader2 matchgroup=yaccSep start="^\s*\zs%{" end="^\s*%}" contains=@yaccCode nextgroup=yaccInit skipwhite skipempty contained
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46 HiFold syn region yaccHeader matchgroup=yaccSep start="^\s*\zs%{" end="^\s*%}" contains=@yaccCode nextgroup=yaccInit skipwhite skipempty
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47 HiFold syn region yaccRules matchgroup=yaccSectionSep start='^%%$' end='^%%$'me=e-2,re=e-2 contains=@yaccRulesCluster nextgroup=yaccEndCode skipwhite skipempty contained
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48 HiFold syn region yaccEndCode matchgroup=yaccSectionSep start='^%%$' end='\%$' contains=@yaccCode contained
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49
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50 " ---------------------------------------------------------------------
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51 " Yacc Commands: {{{1
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52 syn match yaccDelim "[:|]" contained
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53 syn match yaccOper "@\d\+" contained
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54
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55 syn match yaccKey "^\s*%\(token\|type\|left\|right\|start\|ident\|nonassoc\)\>" contained
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56 syn match yaccKey "\s%\(prec\|expect\)\>" contained
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57 syn match yaccKey "\$\(<[a-zA-Z_][a-zA-Z_0-9]*>\)\=[\$0-9]\+" contained
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58 syn keyword yaccKeyActn yyerrok yyclearin contained
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59
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60 syn match yaccUnionStart "^%union" skipwhite skipnl nextgroup=yaccUnion contained
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61 HiFold syn region yaccUnion matchgroup=yaccCurly start="{" matchgroup=yaccCurly end="}" contains=@yaccCode contained
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62 syn match yaccBrkt "[<>]" contained
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63 syn match yaccType "<[a-zA-Z_][a-zA-Z0-9_]*>" contains=yaccBrkt contained
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64
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65 HiFold syn region yaccNonterminal start="^\s*\a\w*\ze\_s*\(/\*\_.\{-}\*/\)\=\_s*:" matchgroup=yaccDelim end=";" matchgroup=yaccSectionSep end='^%%$'me=e-2,re=e-2 contains=yaccAction,yaccDelim,yaccString,yaccComment contained
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66 syn region yaccComment start="/\*" end="\*/"
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67 syn match yaccString "'[^']*'" contained
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68
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69
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70 " ---------------------------------------------------------------------
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71 " I'd really like to highlight just the outer {}. Any suggestions??? {{{1
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72 syn match yaccCurlyError "[{}]"
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73 HiFold syn region yaccAction matchgroup=yaccCurly start="{" end="}" contains=@yaccCode contained
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74
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75 " ---------------------------------------------------------------------
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76 " Yacc synchronization: {{{1
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77 syn sync fromstart
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78
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79 " ---------------------------------------------------------------------
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80 " Define the default highlighting. {{{1
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81 if !exists("did_yacc_syn_inits")
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82 command -nargs=+ HiLink hi def link <args>
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83
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84 " Internal yacc highlighting links {{{2
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85 HiLink yaccBrkt yaccStmt
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86 HiLink yaccKey yaccStmt
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87 HiLink yaccOper yaccStmt
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88 HiLink yaccUnionStart yaccKey
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89
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90 " External yacc highlighting links {{{2
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91 HiLink yaccComment Comment
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92 HiLink yaccCurly Delimiter
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93 HiLink yaccCurlyError Error
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94 HiLink yaccNonterminal Function
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95 HiLink yaccDelim Delimiter
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96 HiLink yaccKeyActn Special
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97 HiLink yaccSectionSep Todo
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98 HiLink yaccSep Delimiter
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99 HiLink yaccString String
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100 HiLink yaccStmt Statement
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101 HiLink yaccType Type
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102
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103 " since Bram doesn't like my Delimiter :| {{{2
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104 HiLink Delimiter Type
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105
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106 delcommand HiLink
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107 endif
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108
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109 " ---------------------------------------------------------------------
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110 " Cleanup: {{{1
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111 delcommand HiFold
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112 let b:current_syntax = "yacc"
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113
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114 " ---------------------------------------------------------------------
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115 " Modelines: {{{1
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116 " vim: ts=15 fdm=marker
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