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1 " Vim syntax file
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2 " Language: R Help File
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3 " Maintainer: Johannes Ranke <jranke@uni-bremen.de>
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4 " Last Change: 2006 Apr 24
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5 " Version: 0.7
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6 " SVN: $Id$
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7 " Remarks: - Now includes R syntax highlighting in the appropriate
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8 " sections if an r.vim file is in the same directory or in the
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9 " default debian location.
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10 " - There is no Latex markup in equations
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11
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12 " Version Clears: {{{1
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13 " For version 5.x: Clear all syntax items
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14 " For version 6.x and 7.x: Quit when a syntax file was already loaded
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15 if version < 600
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16 syntax clear
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17 elseif exists("b:current_syntax")
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18 finish
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19 endif
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20
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21 syn case match
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22
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23 " R help identifiers {{{
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24 syn region rhelpIdentifier matchgroup=rhelpSection start="\\name{" end="}"
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25 syn region rhelpIdentifier matchgroup=rhelpSection start="\\alias{" end="}"
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26 syn region rhelpIdentifier matchgroup=rhelpSection start="\\pkg{" end="}"
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27 syn region rhelpIdentifier matchgroup=rhelpSection start="\\item{" end="}" contained contains=rhelpDots
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28 syn region rhelpIdentifier matchgroup=rhelpSection start="\\method{" end=/}/ contained
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29
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30 " Highlighting of R code using an existing r.vim syntax file if available {{{1
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31 syn include @R syntax/r.vim
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32 syn match rhelpDots "\\dots" containedin=@R
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33 syn region rhelpRcode matchgroup=Delimiter start="\\examples{" matchgroup=Delimiter transparent end=/}/ contains=@R,rhelpSection
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34 syn region rhelpRcode matchgroup=Delimiter start="\\usage{" matchgroup=Delimiter transparent end=/}/ contains=@R,rhelpIdentifier,rhelpS4method
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35 syn region rhelpRcode matchgroup=Delimiter start="\\synopsis{" matchgroup=Delimiter transparent end=/}/ contains=@R
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36 syn region rhelpRcode matchgroup=Delimiter start="\\special{" matchgroup=Delimiter transparent end=/}/ contains=@R contained
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37 syn region rhelpRcode matchgroup=Delimiter start="\\code{" matchgroup=Delimiter transparent end=/}/ contains=@R,rhelpLink contained
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38 syn region rhelpS4method matchgroup=Delimiter start="\\S4method{.*}(" matchgroup=Delimiter transparent end=/)/ contains=@R,rhelpDots contained
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39
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40 " Strings {{{1
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41 syn region rhelpString start=/"/ end=/"/
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42
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43 " Special characters ( \$ \& \% \# \{ \} \_) {{{1
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44 syn match rhelpSpecialChar "\\[$&%#{}_]"
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45
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46 " Special Delimiters {{{1
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47 syn match rhelpDelimiter "\\cr"
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48 syn match rhelpDelimiter "\\tab "
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49
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50 " Keywords {{{1
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51 syn match rhelpKeyword "\\R"
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52 syn match rhelpKeyword "\\ldots"
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53 syn match rhelpKeyword "--"
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54 syn match rhelpKeyword "---"
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55 syn match rhelpKeyword "<"
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56 syn match rhelpKeyword ">"
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57
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58 " Links {{{1
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59 syn region rhelpLink matchgroup=rhelpSection start="\\link{" end="}" contained keepend
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60 syn region rhelpLink matchgroup=rhelpSection start="\\link\[.*\]{" end="}" contained keepend
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61 syn region rhelpLink matchgroup=rhelpSection start="\\linkS4class{" end="}" contained keepend
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62
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63 " Type Styles {{{1
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64 syn match rhelpType "\\emph\>"
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65 syn match rhelpType "\\strong\>"
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66 syn match rhelpType "\\bold\>"
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67 syn match rhelpType "\\sQuote\>"
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68 syn match rhelpType "\\dQuote\>"
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69 syn match rhelpType "\\preformatted\>"
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70 syn match rhelpType "\\kbd\>"
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71 syn match rhelpType "\\samp\>"
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72 syn match rhelpType "\\eqn\>"
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73 syn match rhelpType "\\deqn\>"
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74 syn match rhelpType "\\file\>"
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75 syn match rhelpType "\\email\>"
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76 syn match rhelpType "\\url\>"
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77 syn match rhelpType "\\var\>"
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78 syn match rhelpType "\\env\>"
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79 syn match rhelpType "\\option\>"
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80 syn match rhelpType "\\command\>"
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81 syn match rhelpType "\\dfn\>"
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82 syn match rhelpType "\\cite\>"
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83 syn match rhelpType "\\acronym\>"
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84
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85 " rhelp sections {{{1
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86 syn match rhelpSection "\\encoding\>"
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87 syn match rhelpSection "\\title\>"
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88 syn match rhelpSection "\\description\>"
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89 syn match rhelpSection "\\concept\>"
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90 syn match rhelpSection "\\arguments\>"
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91 syn match rhelpSection "\\details\>"
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92 syn match rhelpSection "\\value\>"
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93 syn match rhelpSection "\\references\>"
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94 syn match rhelpSection "\\note\>"
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95 syn match rhelpSection "\\author\>"
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96 syn match rhelpSection "\\seealso\>"
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97 syn match rhelpSection "\\keyword\>"
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98 syn match rhelpSection "\\docType\>"
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99 syn match rhelpSection "\\format\>"
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100 syn match rhelpSection "\\source\>"
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101 syn match rhelpSection "\\itemize\>"
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102 syn match rhelpSection "\\describe\>"
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103 syn match rhelpSection "\\enumerate\>"
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104 syn match rhelpSection "\\item "
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105 syn match rhelpSection "\\item$"
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106 syn match rhelpSection "\\tabular{[lcr]*}"
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107 syn match rhelpSection "\\dontrun\>"
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108 syn match rhelpSection "\\dontshow\>"
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109 syn match rhelpSection "\\testonly\>"
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110
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111 " Freely named Sections {{{1
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112 syn region rhelpFreesec matchgroup=Delimiter start="\\section{" matchgroup=Delimiter transparent end=/}/
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113
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114 " R help file comments {{{1
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115 syn match rhelpComment /%.*$/ contained
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116
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117 " Error {{{1
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118 syn region rhelpRegion matchgroup=Delimiter start=/(/ matchgroup=Delimiter end=/)/ transparent contains=ALLBUT,rhelpError,rhelpBraceError,rhelpCurlyError
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119 syn region rhelpRegion matchgroup=Delimiter start=/{/ matchgroup=Delimiter end=/}/ transparent contains=ALLBUT,rhelpError,rhelpBraceError,rhelpParenError
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120 syn region rhelpRegion matchgroup=Delimiter start=/\[/ matchgroup=Delimiter end=/]/ transparent contains=ALLBUT,rhelpError,rhelpCurlyError,rhelpParenError
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121 syn match rhelpError /[)\]}]/
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122 syn match rhelpBraceError /[)}]/ contained
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123 syn match rhelpCurlyError /[)\]]/ contained
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124 syn match rhelpParenError /[\]}]/ contained
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125
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126 " Define the default highlighting {{{1
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127 " For version 5.7 and earlier: only when not done already
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128 " For version 5.8 and later: only when an item doesn't have highlighting yet
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129 if version >= 508 || !exists("did_rhelp_syntax_inits")
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130 if version < 508
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131 let did_rhelp_syntax_inits = 1
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132 command -nargs=+ HiLink hi link <args>
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133 else
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134 command -nargs=+ HiLink hi def link <args>
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135 endif
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136 HiLink rhelpIdentifier Identifier
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137 HiLink rhelpString String
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138 HiLink rhelpKeyword Keyword
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139 HiLink rhelpDots Keyword
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140 HiLink rhelpLink Underlined
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141 HiLink rhelpType Type
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142 HiLink rhelpSection PreCondit
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143 HiLink rhelpError Error
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144 HiLink rhelpBraceError Error
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145 HiLink rhelpCurlyError Error
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146 HiLink rhelpParenError Error
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147 HiLink rhelpDelimiter Delimiter
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148 HiLink rhelpComment Comment
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149 HiLink rhelpRComment Comment
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150 HiLink rhelpSpecialChar SpecialChar
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151 delcommand HiLink
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152 endif
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153
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154 let b:current_syntax = "rhelp"
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155 " vim: foldmethod=marker:
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