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1 " Vim syntax file
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2 " Language: DTD (Document Type Definition for XML)
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3 " Maintainer: Johannes Zellner <johannes@zellner.org>
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4 " Author and previous maintainer:
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5 " Daniel Amyot <damyot@site.uottawa.ca>
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6 " Last Change: Tue, 27 Apr 2004 14:54:59 CEST
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7 " Filenames: *.dtd
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8 "
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9 " REFERENCES:
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10 " http://www.w3.org/TR/html40/
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11 " http://www.w3.org/TR/NOTE-html-970421
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12 "
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13 " TODO:
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14 " - improve synchronizing.
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15
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16 if version < 600
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17 syntax clear
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18 let __dtd_cpo_save__ = &cpo
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19 set cpo&
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20 else
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21 if exists("b:current_syntax")
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22 finish
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23 endif
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24 let s:dtd_cpo_save = &cpo
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25 set cpo&vim
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26 endif
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27
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28 if !exists("dtd_ignore_case")
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29 " I prefer having the case takes into consideration.
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30 syn case match
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31 else
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32 syn case ignore
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33 endif
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34
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35
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36 " the following line makes the opening <! and
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37 " closing > highlighted using 'dtdFunction'.
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38 "
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39 " PROVIDES: @dtdTagHook
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40 "
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41 syn region dtdTag matchgroup=dtdFunction
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42 \ start=+<!+ end=+>+ matchgroup=NONE
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43 \ contains=dtdTag,dtdTagName,dtdError,dtdComment,dtdString,dtdAttrType,dtdAttrDef,dtdEnum,dtdParamEntityInst,dtdParamEntityDecl,dtdCard,@dtdTagHook
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44
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45 if !exists("dtd_no_tag_errors")
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46 " mark everything as an error which starts with a <!
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47 " and is not overridden later. If this is annoying,
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48 " it can be switched off by setting the variable
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49 " dtd_no_tag_errors.
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50 syn region dtdError contained start=+<!+lc=2 end=+>+
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51 endif
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52
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53 " if this is a html like comment hightlight also
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54 " the opening <! and the closing > as Comment.
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55 syn region dtdComment start=+<![ \t]*--+ end=+-->+ contains=dtdTodo
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56
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57
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58 " proper DTD comment
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59 syn region dtdComment contained start=+--+ end=+--+ contains=dtdTodo
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60
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61
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62 " Start tags (keywords). This is contained in dtdFunction.
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63 " Note that everything not contained here will be marked
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64 " as error.
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65 syn match dtdTagName contained +<!\(ATTLIST\|DOCTYPE\|ELEMENT\|ENTITY\|NOTATION\|SHORTREF\|USEMAP\|\[\)+lc=2,hs=s+2
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66
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67
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68 " wildcards and operators
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69 syn match dtdCard contained "|"
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70 syn match dtdCard contained ","
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71 " evenutally overridden by dtdEntity
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72 syn match dtdCard contained "&"
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73 syn match dtdCard contained "?"
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74 syn match dtdCard contained "\*"
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75 syn match dtdCard contained "+"
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76
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77 " ...and finally, special cases.
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78 syn match dtdCard "ANY"
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79 syn match dtdCard "EMPTY"
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80
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81 if !exists("dtd_no_param_entities")
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82
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83 " highlight parameter entity declarations
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84 " and instances. Note that the closing `;'
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85 " is optional.
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86
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87 " instances
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88 syn region dtdParamEntityInst oneline matchgroup=dtdParamEntityPunct
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89 \ start="%[-_a-zA-Z0-9.]\+"he=s+1,rs=s+1
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90 \ skip=+[-_a-zA-Z0-9.]+
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91 \ end=";\|\>"
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92 \ matchgroup=NONE contains=dtdParamEntityPunct
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93 syn match dtdParamEntityPunct contained "\."
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94
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95 " declarations
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96 " syn region dtdParamEntityDecl oneline matchgroup=dtdParamEntityDPunct start=+<!ENTITY % +lc=8 skip=+[-_a-zA-Z0-9.]+ matchgroup=NONE end="\>" contains=dtdParamEntityDPunct
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97 syn match dtdParamEntityDecl +<!ENTITY % [-_a-zA-Z0-9.]*+lc=8 contains=dtdParamEntityDPunct
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98 syn match dtdParamEntityDPunct contained "%\|\."
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99
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100 endif
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101
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102 " &entities; compare with xml
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103 syn match dtdEntity "&[^; \t]*;" contains=dtdEntityPunct
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104 syn match dtdEntityPunct contained "[&.;]"
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105
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106 " Strings are between quotes
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107 syn region dtdString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=dtdAttrDef,dtdAttrType,dtdEnum,dtdParamEntityInst,dtdEntity,dtdCard
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108 syn region dtdString start=+'+ skip=+\\\\\|\\'+ end=+'+ contains=dtdAttrDef,dtdAttrType,dtdEnum,dtdParamEntityInst,dtdEntity,dtdCard
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109
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110 " Enumeration of elements or data between parenthesis
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111 "
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112 " PROVIDES: @dtdEnumHook
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113 "
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114 syn region dtdEnum matchgroup=dtdType start="(" end=")" matchgroup=NONE contains=dtdEnum,dtdParamEntityInst,dtdCard,@dtdEnumHook
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115
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116 "Attribute types
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117 syn keyword dtdAttrType NMTOKEN ENTITIES NMTOKENS ID CDATA
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118 syn keyword dtdAttrType IDREF IDREFS
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119 " ENTITY has to treated special for not overriding <!ENTITY
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120 syn match dtdAttrType +[^!]\<ENTITY+
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121
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122 "Attribute Definitions
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123 syn match dtdAttrDef "#REQUIRED"
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124 syn match dtdAttrDef "#IMPLIED"
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125 syn match dtdAttrDef "#FIXED"
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126
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127 syn case match
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128 " define some common keywords to mark TODO
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129 " and important sections inside comments.
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130 syn keyword dtdTodo contained TODO FIXME XXX
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131
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132 syn sync lines=250
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133
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134 " Define the default highlighting.
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135 " For version 5.7 and earlier: only when not done already
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136 " For version 5.8 and later: only when an item doesn't have highlighting yet
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137 if version >= 508 || !exists("did_dtd_syn_inits")
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138 if version < 508
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139 let did_dtd_syn_inits = 1
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140 command -nargs=+ HiLink hi link <args>
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141 else
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142 command -nargs=+ HiLink hi def link <args>
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143 endif
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144
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145 " The default highlighting.
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146 HiLink dtdFunction Function
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147 HiLink dtdTag Normal
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148 HiLink dtdType Type
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149 HiLink dtdAttrType dtdType
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150 HiLink dtdAttrDef dtdType
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151 HiLink dtdConstant Constant
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152 HiLink dtdString dtdConstant
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153 HiLink dtdEnum dtdConstant
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154 HiLink dtdCard dtdFunction
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155
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156 HiLink dtdEntity Statement
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157 HiLink dtdEntityPunct dtdType
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158 HiLink dtdParamEntityInst dtdConstant
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159 HiLink dtdParamEntityPunct dtdType
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160 HiLink dtdParamEntityDecl dtdType
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161 HiLink dtdParamEntityDPunct dtdComment
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162
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163 HiLink dtdComment Comment
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164 HiLink dtdTagName Statement
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165 HiLink dtdError Error
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166 HiLink dtdTodo Todo
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167
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168 delcommand HiLink
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169 endif
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170
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171 if version < 600
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172 let &cpo = __dtd_cpo_save__
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173 unlet __dtd_cpo_save__
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174 else
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175 let &cpo = s:dtd_cpo_save
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176 unlet s:dtd_cpo_save
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177 endif
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178
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179 let b:current_syntax = "dtd"
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180
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181 " vim: ts=8
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