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1 " VIM syntax file
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2 " Language: nroff/groff
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3 " Maintainer: Alejandro López-Valencia <dradul@yahoo.com>
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4 " URL: http://dradul.tripod.com/vim
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5 " Last Change: 2006 Apr 14
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6 "
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7 " {{{1 Acknowledgements
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8 "
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9 " ACKNOWLEDGEMENTS:
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10 "
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11 " My thanks to Jérôme Plût <Jerome.Plut@ens.fr>, who was the
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12 " creator and maintainer of this syntax file for several years.
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13 " May I be as good at it as he has been.
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14 "
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15 " {{{1 Todo
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16 "
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17 " TODO:
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18 "
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19 " * Write syntax highlighting files for the preprocessors,
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20 " and integrate with nroff.vim.
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21 "
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22 "
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23 " {{{1 Start syntax highlighting.
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24 "
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25 " For version 5.x: Clear all syntax items
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26 " For version 6.x: Quit when a syntax file was already loaded
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27 "
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28 if version < 600
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29 syntax clear
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30 elseif exists("b:current_syntax")
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31 finish
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32 endif
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33
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34 "
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35 " {{{1 plugin settings...
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36 "
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37 " {{{2 enable spacing error highlighting
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38 "
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39 if exists("nroff_space_errors")
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40 syn match nroffError /\s\+$/
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41 syn match nroffSpaceError /[.,:;!?]\s\{2,}/
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42 endif
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43 "
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44 "
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45 " {{{1 Special file settings
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46 "
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47 " {{{2 ms exdented paragraphs are not in the default paragraphs list.
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48 "
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49 setlocal paragraphs+=XP
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50 "
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51 " {{{2 Activate navigation to preporcessor sections.
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52 "
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53 if exists("b:preprocs_as_sections")
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54 setlocal sections=EQTSPS[\ G1GS
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55 endif
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56
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57 " {{{1 Escape sequences
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58 " ------------------------------------------------------------
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59
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60 syn match nroffEscChar /\\[CN]/ nextgroup=nroffEscCharArg
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61 syn match nroffEscape /\\[*fgmnYV]/ nextgroup=nroffEscRegPar,nroffEscRegArg
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62 syn match nroffEscape /\\s[+-]\=/ nextgroup=nroffSize
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63 syn match nroffEscape /\\[$AbDhlLRvxXZ]/ nextgroup=nroffEscPar,nroffEscArg
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64
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65 syn match nroffEscRegArg /./ contained
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66 syn match nroffEscRegArg2 /../ contained
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67 syn match nroffEscRegPar /(/ contained nextgroup=nroffEscRegArg2
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68 syn match nroffEscArg /./ contained
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69 syn match nroffEscArg2 /../ contained
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70 syn match nroffEscPar /(/ contained nextgroup=nroffEscArg2
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71 syn match nroffSize /\((\d\)\=\d/ contained
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72
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73 syn region nroffEscCharArg start=/'/ end=/'/ contained
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74 syn region nroffEscArg start=/'/ end=/'/ contained contains=nroffEscape,@nroffSpecial
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75
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76 if exists("b:nroff_is_groff")
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77 syn region nroffEscRegArg matchgroup=nroffEscape start=/\[/ end=/\]/ contained oneline
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78 syn region nroffSize matchgroup=nroffEscape start=/\[/ end=/\]/ contained
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79 endif
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80
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81 syn match nroffEscape /\\[adprtu{}]/
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82 syn match nroffEscape /\\$/
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83 syn match nroffEscape /\\\$[@*]/
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84
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85 " {{{1 Strings and special characters
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86 " ------------------------------------------------------------
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87
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88 syn match nroffSpecialChar /\\[\\eE?!-]/
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89 syn match nroffSpace "\\[&%~|^0)/,]"
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90 syn match nroffSpecialChar /\\(../
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91
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92 if exists("b:nroff_is_groff")
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93 syn match nroffSpecialChar /\\\[[^]]*]/
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94 syn region nroffPreserve matchgroup=nroffSpecialChar start=/\\?/ end=/\\?/ oneline
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95 endif
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96
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97 syn region nroffPreserve matchgroup=nroffSpecialChar start=/\\!/ end=/$/ oneline
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98
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99 syn cluster nroffSpecial contains=nroffSpecialChar,nroffSpace
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100
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101
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102 syn region nroffString start=/"/ end=/"/ skip=/\\$/ contains=nroffEscape,@nroffSpecial contained
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103 syn region nroffString start=/'/ end=/'/ skip=/\\$/ contains=nroffEscape,@nroffSpecial contained
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104
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105
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106 " {{{1 Numbers and units
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107 " ------------------------------------------------------------
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108 syn match nroffNumBlock /[0-9.]\a\=/ contained contains=nroffNumber
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109 syn match nroffNumber /\d\+\(\.\d*\)\=/ contained nextgroup=nroffUnit,nroffBadChar
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110 syn match nroffNumber /\.\d\+)/ contained nextgroup=nroffUnit,nroffBadChar
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111 syn match nroffBadChar /./ contained
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112 syn match nroffUnit /[icpPszmnvMu]/ contained
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113
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114
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115 " {{{1 Requests
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116 " ------------------------------------------------------------
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117
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118 " Requests begin with . or ' at the beginning of a line, or
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119 " after .if or .ie.
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120
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121 syn match nroffReqLeader /^[.']/ nextgroup=nroffReqName skipwhite
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122 syn match nroffReqLeader /[.']/ contained nextgroup=nroffReqName skipwhite
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123
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124 if exists("b:nroff_is_groff")
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125 "
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126 " GNU troff allows long request names
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127 "
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128 syn match nroffReqName /[^\t \\\[?]\+/ contained nextgroup=nroffReqArg
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129 else
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130 syn match nroffReqName /[^\t \\\[?]\{1,2}/ contained nextgroup=nroffReqArg
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131 endif
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132
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133 syn region nroffReqArg start=/\S/ skip=/\\$/ end=/$/ contained contains=nroffEscape,@nroffSpecial,nroffString,nroffError,nroffSpaceError,nroffNumBlock,nroffComment
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134
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135 " {{{2 Conditional: .if .ie .el
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136 syn match nroffReqName /\(if\|ie\)/ contained nextgroup=nroffCond skipwhite
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137 syn match nroffReqName /el/ contained nextgroup=nroffReqLeader skipwhite
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138 syn match nroffCond /\S\+/ contained nextgroup=nroffReqLeader skipwhite
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139
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140 " {{{2 String definition: .ds .as
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141 syn match nroffReqname /[da]s/ contained nextgroup=nroffDefIdent skipwhite
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142 syn match nroffDefIdent /\S\+/ contained nextgroup=nroffDefinition skipwhite
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143 syn region nroffDefinition matchgroup=nroffSpecialChar start=/"/ matchgroup=NONE end=/\\"/me=e-2 skip=/\\$/ start=/\S/ end=/$/ contained contains=nroffDefSpecial
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144 syn match nroffDefSpecial /\\$/ contained
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145 syn match nroffDefSpecial /\\\((.\)\=./ contained
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146
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147 if exists("b:nroff_is_groff")
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148 syn match nroffDefSpecial /\\\[[^]]*]/ contained
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149 endif
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150
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151 " {{{2 Macro definition: .de .am, also diversion: .di
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152 syn match nroffReqName /\(d[ei]\|am\)/ contained nextgroup=nroffIdent skipwhite
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153 syn match nroffIdent /[^[?( \t]\+/ contained
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154 if exists("b:nroff_is_groff")
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155 syn match nroffReqName /als/ contained nextgroup=nroffIdent skipwhite
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156 endif
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157
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158 " {{{2 Register definition: .rn .rr
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159 syn match nroffReqName /[rn]r/ contained nextgroup=nroffIdent skipwhite
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160 if exists("b:nroff_is_groff")
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161 syn match nroffReqName /\(rnn\|aln\)/ contained nextgroup=nroffIdent skipwhite
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162 endif
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163
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164
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165 " {{{1 eqn/tbl/pic
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166 " ------------------------------------------------------------
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167 " <jp>
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168 " XXX: write proper syntax highlight for eqn / tbl / pic ?
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169 " <jp />
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170
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171 syn region nroffEquation start=/^\.\s*EQ\>/ end=/^\.\s*EN\>/
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172 syn region nroffTable start=/^\.\s*TS\>/ end=/^\.\s*TE\>/
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173 syn region nroffPicture start=/^\.\s*PS\>/ end=/^\.\s*PE\>/
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174 syn region nroffRefer start=/^\.\s*\[\>/ end=/^\.\s*\]\>/
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175 syn region nroffGrap start=/^\.\s*G1\>/ end=/^\.\s*G2\>/
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176 syn region nroffGremlin start=/^\.\s*GS\>/ end=/^\.\s*GE|GF\>/
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177
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178 " {{{1 Comments
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179 " ------------------------------------------------------------
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180
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181 syn region nroffIgnore start=/^[.']\s*ig/ end=/^['.]\s*\./
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182 syn match nroffComment /\(^[.']\s*\)\=\\".*/ contains=nroffTodo
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183 syn match nroffComment /^'''.*/ contains=nroffTodo
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184
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185 if exists("b:nroff_is_groff")
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186 syn match nroffComment "\\#.*$" contains=nroffTodo
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187 endif
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188
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189 syn keyword nroffTodo TODO XXX FIXME contained
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190
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191 " {{{1 Hilighting
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192 " ------------------------------------------------------------
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193 "
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194
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195 "
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196 " Define the default highlighting.
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197 " For version 5.7 and earlier: only when not done already
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198 " For version 5.8 and later: only when an item doesn't have highlighting yet
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199 "
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200 if version >= 508 || !exists("did_nroff_syn_inits")
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201
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202 if version < 508
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203 let did_nroff_syn_inits = 1
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204 command -nargs=+ HiLink hi link <args>
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205 else
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206 command -nargs=+ HiLink hi def link <args>
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207 endif
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208
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209 HiLink nroffEscChar nroffSpecialChar
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210 HiLink nroffEscCharAr nroffSpecialChar
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211 HiLink nroffSpecialChar SpecialChar
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212 HiLink nroffSpace Delimiter
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213
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214 HiLink nroffEscRegArg2 nroffEscRegArg
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215 HiLink nroffEscRegArg nroffIdent
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216
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217 HiLink nroffEscArg2 nroffEscArg
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218 HiLink nroffEscPar nroffEscape
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219
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220 HiLink nroffEscRegPar nroffEscape
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221 HiLink nroffEscArg nroffEscape
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222 HiLink nroffSize nroffEscape
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223 HiLink nroffEscape Preproc
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224
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225 HiLink nroffIgnore Comment
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226 HiLink nroffComment Comment
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227 HiLink nroffTodo Todo
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228
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229 HiLink nroffReqLeader nroffRequest
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230 HiLink nroffReqName nroffRequest
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231 HiLink nroffRequest Statement
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232 HiLink nroffCond PreCondit
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233 HiLink nroffDefIdent nroffIdent
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234 HiLink nroffIdent Identifier
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235
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236 HiLink nroffEquation PreProc
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237 HiLink nroffTable PreProc
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238 HiLink nroffPicture PreProc
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239 HiLink nroffRefer PreProc
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240 HiLink nroffGrap PreProc
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241 HiLink nroffGremlin PreProc
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242
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243 HiLink nroffNumber Number
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244 HiLink nroffBadChar nroffError
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245 HiLink nroffSpaceError nroffError
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246 HiLink nroffError Error
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247
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248 HiLink nroffPreserve String
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249 HiLink nroffString String
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250 HiLink nroffDefinition String
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251 HiLink nroffDefSpecial Special
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252
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253 delcommand HiLink
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254
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255 endif
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256
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257 let b:current_syntax = "nroff"
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258
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259 " vim600: set fdm=marker fdl=2:
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