1 | <?xml version='1.0'?> |
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2 | <?xml-stylesheet href="../2008/09/xsd.xsl" type="text/xsl"?> |
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3 | <xs:schema targetNamespace="http://www.w3.org/XML/1998/namespace" |
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4 | xmlns:xs="http://www.w3.org/2001/XMLSchema" |
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5 | xmlns ="http://www.w3.org/1999/xhtml" |
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6 | xml:lang="en"> |
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7 | |
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8 | <xs:annotation> |
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9 | <xs:documentation> |
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10 | <div> |
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11 | <h1>About the XML namespace</h1> |
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12 | |
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13 | <div class="bodytext"> |
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14 | <p> |
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15 | This schema document describes the XML namespace, in a form |
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16 | suitable for import by other schema documents. |
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17 | </p> |
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18 | <p> |
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19 | See <a href="http://www.w3.org/XML/1998/namespace.html"> |
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20 | http://www.w3.org/XML/1998/namespace.html</a> and |
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21 | <a href="http://www.w3.org/TR/REC-xml"> |
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22 | http://www.w3.org/TR/REC-xml</a> for information |
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23 | about this namespace. |
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24 | </p> |
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25 | <p> |
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26 | Note that local names in this namespace are intended to be |
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27 | defined only by the World Wide Web Consortium or its subgroups. |
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28 | The names currently defined in this namespace are listed below. |
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29 | They should not be used with conflicting semantics by any Working |
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30 | Group, specification, or document instance. |
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31 | </p> |
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32 | <p> |
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33 | See further below in this document for more information about <a |
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34 | href="#usage">how to refer to this schema document from your own |
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35 | XSD schema documents</a> and about <a href="#nsversioning">the |
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36 | namespace-versioning policy governing this schema document</a>. |
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37 | </p> |
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38 | </div> |
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39 | </div> |
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40 | </xs:documentation> |
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41 | </xs:annotation> |
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42 | |
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43 | <xs:attribute name="lang"> |
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44 | <xs:annotation> |
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45 | <xs:documentation> |
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46 | <div> |
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47 | |
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48 | <h3>lang (as an attribute name)</h3> |
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49 | <p> |
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50 | denotes an attribute whose value |
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51 | is a language code for the natural language of the content of |
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52 | any element; its value is inherited. This name is reserved |
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53 | by virtue of its definition in the XML specification.</p> |
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54 | |
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55 | </div> |
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56 | <div> |
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57 | <h4>Notes</h4> |
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58 | <p> |
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59 | Attempting to install the relevant ISO 2- and 3-letter |
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60 | codes as the enumerated possible values is probably never |
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61 | going to be a realistic possibility. |
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62 | </p> |
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63 | <p> |
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64 | See BCP 47 at <a href="http://www.rfc-editor.org/rfc/bcp/bcp47.txt"> |
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65 | http://www.rfc-editor.org/rfc/bcp/bcp47.txt</a> |
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66 | and the IANA language subtag registry at |
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67 | <a href="http://www.iana.org/assignments/language-subtag-registry"> |
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68 | http://www.iana.org/assignments/language-subtag-registry</a> |
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69 | for further information. |
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70 | </p> |
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71 | <p> |
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72 | The union allows for the 'un-declaration' of xml:lang with |
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73 | the empty string. |
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74 | </p> |
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75 | </div> |
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76 | </xs:documentation> |
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77 | </xs:annotation> |
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78 | <xs:simpleType> |
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79 | <xs:union memberTypes="xs:language"> |
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80 | <xs:simpleType> |
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81 | <xs:restriction base="xs:string"> |
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82 | <xs:enumeration value=""/> |
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83 | </xs:restriction> |
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84 | </xs:simpleType> |
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85 | </xs:union> |
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86 | </xs:simpleType> |
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87 | </xs:attribute> |
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88 | |
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89 | <xs:attribute name="space"> |
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90 | <xs:annotation> |
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91 | <xs:documentation> |
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92 | <div> |
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93 | |
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94 | <h3>space (as an attribute name)</h3> |
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95 | <p> |
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96 | denotes an attribute whose |
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97 | value is a keyword indicating what whitespace processing |
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98 | discipline is intended for the content of the element; its |
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99 | value is inherited. This name is reserved by virtue of its |
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100 | definition in the XML specification.</p> |
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101 | |
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102 | </div> |
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103 | </xs:documentation> |
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104 | </xs:annotation> |
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105 | <xs:simpleType> |
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106 | <xs:restriction base="xs:NCName"> |
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107 | <xs:enumeration value="default"/> |
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108 | <xs:enumeration value="preserve"/> |
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109 | </xs:restriction> |
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110 | </xs:simpleType> |
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111 | </xs:attribute> |
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112 | |
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113 | <xs:attribute name="base" type="xs:anyURI"> <xs:annotation> |
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114 | <xs:documentation> |
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115 | <div> |
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116 | |
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117 | <h3>base (as an attribute name)</h3> |
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118 | <p> |
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119 | denotes an attribute whose value |
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120 | provides a URI to be used as the base for interpreting any |
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121 | relative URIs in the scope of the element on which it |
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122 | appears; its value is inherited. This name is reserved |
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123 | by virtue of its definition in the XML Base specification.</p> |
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124 | |
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125 | <p> |
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126 | See <a |
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127 | href="http://www.w3.org/TR/xmlbase/">http://www.w3.org/TR/xmlbase/</a> |
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128 | for information about this attribute. |
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129 | </p> |
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130 | </div> |
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131 | </xs:documentation> |
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132 | </xs:annotation> |
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133 | </xs:attribute> |
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134 | |
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135 | <xs:attribute name="id" type="xs:ID"> |
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136 | <xs:annotation> |
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137 | <xs:documentation> |
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138 | <div> |
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139 | |
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140 | <h3>id (as an attribute name)</h3> |
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141 | <p> |
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142 | denotes an attribute whose value |
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143 | should be interpreted as if declared to be of type ID. |
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144 | This name is reserved by virtue of its definition in the |
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145 | xml:id specification.</p> |
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146 | |
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147 | <p> |
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148 | See <a |
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149 | href="http://www.w3.org/TR/xml-id/">http://www.w3.org/TR/xml-id/</a> |
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150 | for information about this attribute. |
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151 | </p> |
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152 | </div> |
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153 | </xs:documentation> |
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154 | </xs:annotation> |
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155 | </xs:attribute> |
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156 | |
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157 | <xs:attributeGroup name="specialAttrs"> |
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158 | <xs:attribute ref="xml:base"/> |
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159 | <xs:attribute ref="xml:lang"/> |
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160 | <xs:attribute ref="xml:space"/> |
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161 | <xs:attribute ref="xml:id"/> |
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162 | </xs:attributeGroup> |
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163 | |
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164 | <xs:annotation> |
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165 | <xs:documentation> |
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166 | <div> |
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167 | |
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168 | <h3>Father (in any context at all)</h3> |
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169 | |
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170 | <div class="bodytext"> |
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171 | <p> |
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172 | denotes Jon Bosak, the chair of |
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173 | the original XML Working Group. This name is reserved by |
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174 | the following decision of the W3C XML Plenary and |
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175 | XML Coordination groups: |
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176 | </p> |
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177 | <blockquote> |
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178 | <p> |
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179 | In appreciation for his vision, leadership and |
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180 | dedication the W3C XML Plenary on this 10th day of |
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181 | February, 2000, reserves for Jon Bosak in perpetuity |
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182 | the XML name "xml:Father". |
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183 | </p> |
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184 | </blockquote> |
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185 | </div> |
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186 | </div> |
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187 | </xs:documentation> |
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188 | </xs:annotation> |
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189 | |
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190 | <xs:annotation> |
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191 | <xs:documentation> |
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192 | <div xml:id="usage" id="usage"> |
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193 | <h2><a name="usage">About this schema document</a></h2> |
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194 | |
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195 | <div class="bodytext"> |
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196 | <p> |
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197 | This schema defines attributes and an attribute group suitable |
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198 | for use by schemas wishing to allow <code>xml:base</code>, |
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199 | <code>xml:lang</code>, <code>xml:space</code> or |
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200 | <code>xml:id</code> attributes on elements they define. |
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201 | </p> |
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202 | <p> |
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203 | To enable this, such a schema must import this schema for |
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204 | the XML namespace, e.g. as follows: |
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205 | </p> |
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206 | <pre> |
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207 | <schema . . .> |
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208 | . . . |
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209 | <import namespace="http://www.w3.org/XML/1998/namespace" |
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210 | schemaLocation="http://www.w3.org/2001/xml.xsd"/> |
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211 | </pre> |
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212 | <p> |
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213 | or |
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214 | </p> |
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215 | <pre> |
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216 | <import namespace="http://www.w3.org/XML/1998/namespace" |
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217 | schemaLocation="http://www.w3.org/2009/01/xml.xsd"/> |
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218 | </pre> |
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219 | <p> |
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220 | Subsequently, qualified reference to any of the attributes or the |
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221 | group defined below will have the desired effect, e.g. |
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222 | </p> |
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223 | <pre> |
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224 | <type . . .> |
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225 | . . . |
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226 | <attributeGroup ref="xml:specialAttrs"/> |
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227 | </pre> |
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228 | <p> |
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229 | will define a type which will schema-validate an instance element |
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230 | with any of those attributes. |
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231 | </p> |
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232 | </div> |
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233 | </div> |
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234 | </xs:documentation> |
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235 | </xs:annotation> |
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236 | |
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237 | <xs:annotation> |
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238 | <xs:documentation> |
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239 | <div id="nsversioning" xml:id="nsversioning"> |
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240 | <h2><a name="nsversioning">Versioning policy for this schema document</a></h2> |
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241 | <div class="bodytext"> |
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242 | <p> |
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243 | In keeping with the XML Schema WG's standard versioning |
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244 | policy, this schema document will persist at |
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245 | <a href="http://www.w3.org/2009/01/xml.xsd"> |
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246 | http://www.w3.org/2009/01/xml.xsd</a>. |
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247 | </p> |
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248 | <p> |
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249 | At the date of issue it can also be found at |
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250 | <a href="http://www.w3.org/2001/xml.xsd"> |
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251 | http://www.w3.org/2001/xml.xsd</a>. |
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252 | </p> |
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253 | <p> |
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254 | The schema document at that URI may however change in the future, |
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255 | in order to remain compatible with the latest version of XML |
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256 | Schema itself, or with the XML namespace itself. In other words, |
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257 | if the XML Schema or XML namespaces change, the version of this |
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258 | document at <a href="http://www.w3.org/2001/xml.xsd"> |
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259 | http://www.w3.org/2001/xml.xsd |
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260 | </a> |
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261 | will change accordingly; the version at |
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262 | <a href="http://www.w3.org/2009/01/xml.xsd"> |
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263 | http://www.w3.org/2009/01/xml.xsd |
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264 | </a> |
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265 | will not change. |
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266 | </p> |
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267 | <p> |
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268 | Previous dated (and unchanging) versions of this schema |
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269 | document are at: |
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270 | </p> |
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271 | <ul> |
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272 | <li><a href="http://www.w3.org/2009/01/xml.xsd"> |
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273 | http://www.w3.org/2009/01/xml.xsd</a></li> |
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274 | <li><a href="http://www.w3.org/2007/08/xml.xsd"> |
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275 | http://www.w3.org/2007/08/xml.xsd</a></li> |
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276 | <li><a href="http://www.w3.org/2004/10/xml.xsd"> |
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277 | http://www.w3.org/2004/10/xml.xsd</a></li> |
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278 | <li><a href="http://www.w3.org/2001/03/xml.xsd"> |
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279 | http://www.w3.org/2001/03/xml.xsd</a></li> |
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280 | </ul> |
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281 | </div> |
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282 | </div> |
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283 | </xs:documentation> |
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284 | </xs:annotation> |
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285 | |
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286 | </xs:schema> |
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287 | |
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