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   1  <?xml version="1.0" encoding="UTF-8" ?>
   2  <!--
   3      This is an XML Schema description of the format
   4      output by MediaWiki's Special:Export system.
   5  
   6      Version 0.2 adds optional basic file upload info support,
   7      which is used by our OAI export/import submodule.
   8  
   9      Version 0.3 adds some site configuration information such
  10      as a list of defined namespaces.
  11  
  12      Version 0.4 adds per-revision delete flags, log exports,
  13      discussion threading data, a per-page redirect flag, and
  14      per-namespace capitalization.
  15  
  16      Version 0.5 adds byte count per revision.
  17  
  18      Version 0.6 adds a separate namespace tag, and resolves the
  19      redirect target and adds a separate sha1 tag for each revision.
  20  
  21      Version 0.7 adds a unique identity constraint for both page and
  22      revision identifiers. See also bug 4220.
  23      Fix type for <ns> from "positiveInteger" to "nonNegativeInteger" to allow 0
  24      Moves <logitem> to its right location.
  25      Add parentid to revision.
  26      Fix type for <id> within <contributor> to "nonNegativeInteger"
  27  
  28      Version 0.8 adds support for a <model> and a <format> tag for
  29      each revision. See contenthandler.txt.
  30  
  31      The canonical URL to the schema document is:
  32      http://www.mediawiki.org/xml/export-0.8.xsd
  33  
  34      Use the namespace:
  35      http://www.mediawiki.org/xml/export-0.8/
  36  -->
  37  <schema xmlns="http://www.w3.org/2001/XMLSchema"
  38          xmlns:mw="http://www.mediawiki.org/xml/export-0.8/"
  39          targetNamespace="http://www.mediawiki.org/xml/export-0.8/"
  40          elementFormDefault="qualified">
  41  
  42      <annotation>
  43          <documentation xml:lang="en">
  44              MediaWiki's page export format
  45          </documentation>
  46      </annotation>
  47  
  48      <!-- Need this to reference xml:lang -->
  49      <import namespace="http://www.w3.org/XML/1998/namespace"
  50              schemaLocation="http://www.w3.org/2001/xml.xsd" />
  51  
  52      <!-- Our root element -->
  53      <element name="mediawiki" type="mw:MediaWikiType">
  54          <!-- Page ID contraint, see bug 4220 -->
  55          <unique name="PageIDConstraint">
  56              <selector xpath="mw:page" />
  57              <field xpath="mw:id" />
  58          </unique>
  59          <!-- Revision ID contraint, see bug 4220 -->
  60          <unique name="RevIDConstraint">
  61              <selector xpath="mw:page/mw:revision" />
  62              <field xpath="mw:id" />
  63          </unique>
  64      </element>
  65  
  66      <complexType name="MediaWikiType">
  67          <sequence>
  68              <element name="siteinfo" type="mw:SiteInfoType"
  69                       minOccurs="0" maxOccurs="1" />
  70              <element name="page" type="mw:PageType"
  71                       minOccurs="0" maxOccurs="unbounded" />
  72              <element name="logitem" type="mw:LogItemType"
  73                       minOccurs="0" maxOccurs="unbounded" />
  74          </sequence>
  75          <attribute name="version" type="string" use="required" />
  76          <attribute ref="xml:lang" use="required" />
  77      </complexType>
  78  
  79      <complexType name="SiteInfoType">
  80          <sequence>
  81              <element name="sitename" type="string" minOccurs="0" />
  82              <element name="base" type="anyURI" minOccurs="0" />
  83              <element name="generator" type="string" minOccurs="0" />
  84              <element name="case" type="mw:CaseType" minOccurs="0" />
  85              <element name="namespaces" type="mw:NamespacesType" minOccurs="0" />
  86          </sequence>
  87      </complexType>
  88  
  89      <simpleType name="CaseType">
  90          <restriction base="NMTOKEN">
  91              <!-- Cannot have two titles differing only by case of first letter. -->
  92              <!-- Default behavior through 1.5, $wgCapitalLinks = true -->
  93              <enumeration value="first-letter" />
  94  
  95              <!-- Complete title is case-sensitive -->
  96              <!-- Behavior when $wgCapitalLinks = false -->
  97              <enumeration value="case-sensitive" />
  98  
  99              <!-- Cannot have non-case senstitive titles eg [[FOO]] == [[Foo]] -->
 100              <!-- Not yet implemented as of MediaWiki 1.18 -->
 101              <enumeration value="case-insensitive" />
 102          </restriction>
 103      </simpleType>
 104  
 105      <simpleType name="DeletedFlagType">
 106          <restriction base="NMTOKEN">
 107              <enumeration value="deleted" />
 108          </restriction>
 109      </simpleType>
 110  
 111      <complexType name="NamespacesType">
 112          <sequence>
 113              <element name="namespace" type="mw:NamespaceType"
 114                       minOccurs="0" maxOccurs="unbounded" />
 115          </sequence>
 116      </complexType>
 117  
 118      <complexType name="NamespaceType">
 119          <simpleContent>
 120              <extension base="string">
 121                  <attribute name="key" type="integer" />
 122                  <attribute name="case" type="mw:CaseType" />
 123              </extension>
 124          </simpleContent>
 125      </complexType>
 126  
 127      <complexType name="RedirectType">
 128          <simpleContent>
 129              <extension base="string">
 130                  <attribute name="title" type="string" />
 131              </extension>
 132          </simpleContent>
 133      </complexType>
 134  
 135      <simpleType name="ContentModelType">
 136          <restriction base="string">
 137              <pattern value="[a-zA-Z][-+./a-zA-Z0-9]*" />
 138          </restriction>
 139      </simpleType>
 140  
 141      <simpleType name="ContentFormatType">
 142          <restriction base="string">
 143              <pattern value="[a-zA-Z][-+.a-zA-Z0-9]*/[a-zA-Z][-+.a-zA-Z0-9]*" />
 144          </restriction>
 145      </simpleType>
 146  
 147      <complexType name="PageType">
 148          <sequence>
 149              <!-- Title in text form. (Using spaces, not underscores; with namespace ) -->
 150              <element name="title" type="string" />
 151  
 152              <!-- Namespace in canonical form -->
 153              <element name="ns" type="nonNegativeInteger" />
 154  
 155              <!-- optional page ID number -->
 156              <element name="id" type="positiveInteger" />
 157  
 158              <!-- flag if the current revision is a redirect -->
 159              <element name="redirect" type="mw:RedirectType" minOccurs="0" maxOccurs="1" />
 160  
 161              <!-- comma-separated list of string tokens, if present -->
 162              <element name="restrictions" type="string" minOccurs="0" />
 163  
 164              <!-- Zero or more sets of revision or upload data -->
 165              <choice minOccurs="0" maxOccurs="unbounded">
 166                  <element name="revision" type="mw:RevisionType" />
 167                  <element name="upload" type="mw:UploadType" />
 168              </choice>
 169  
 170              <!-- Zero or One sets of discussion threading data -->
 171              <element name="discussionthreadinginfo" minOccurs="0" maxOccurs="1" type="mw:DiscussionThreadingInfo" />
 172          </sequence>
 173      </complexType>
 174  
 175      <complexType name="RevisionType">
 176          <sequence>
 177              <element name="id" type="positiveInteger" />
 178              <element name="parentid" type="positiveInteger" minOccurs="0" />
 179              <element name="timestamp" type="dateTime" />
 180              <element name="contributor" type="mw:ContributorType" />
 181              <element name="minor" minOccurs="0" maxOccurs="1" />
 182              <element name="comment" type="mw:CommentType" minOccurs="0" maxOccurs="1" />
 183              <element name="text" type="mw:TextType" />
 184              <element name="sha1" type="string" />
 185              <element name="model" type="mw:ContentModelType" />
 186              <element name="format" type="mw:ContentFormatType" />
 187          </sequence>
 188      </complexType>
 189  
 190      <complexType name="LogItemType">
 191          <sequence>
 192              <element name="id" type="positiveInteger" />
 193              <element name="timestamp" type="dateTime" />
 194              <element name="contributor" type="mw:ContributorType" />
 195              <element name="comment" type="mw:CommentType" minOccurs="0" />
 196              <element name="type" type="string" />
 197              <element name="action" type="string" />
 198              <element name="text" type="mw:LogTextType" minOccurs="0" maxOccurs="1" />
 199              <element name="logtitle" type="string" minOccurs="0" maxOccurs="1" />
 200              <element name="params" type="mw:LogParamsType" minOccurs="0" maxOccurs="1" />
 201          </sequence>
 202      </complexType>
 203  
 204      <complexType name="CommentType">
 205          <simpleContent>
 206              <extension base="string">
 207                  <!-- This allows deleted=deleted on non-empty elements, but XSD is not omnipotent -->
 208                  <attribute name="deleted" use="optional" type="mw:DeletedFlagType" />
 209              </extension>
 210          </simpleContent>
 211      </complexType>
 212  
 213      <complexType name="TextType">
 214          <simpleContent>
 215              <extension base="string">
 216                  <attribute ref="xml:space" use="optional" default="preserve" />
 217                  <!-- This allows deleted=deleted on non-empty elements, but XSD is not omnipotent -->
 218                  <attribute name="deleted" use="optional" type="mw:DeletedFlagType" />
 219                  <!-- This isn't a good idea; we should be using "ID" instead of "NMTOKEN" -->
 220                  <!-- However, "NMTOKEN" is strictest definition that is both compatible with existing -->
 221                  <!-- usage ([0-9]+) and with the "ID" type. -->
 222                  <attribute name="id" type="NMTOKEN" />
 223                  <attribute name="bytes" use="optional" type="nonNegativeInteger" />
 224              </extension>
 225          </simpleContent>
 226      </complexType>
 227  
 228      <complexType name="LogTextType">
 229          <simpleContent>
 230              <extension base="string">
 231                  <!-- This allows deleted=deleted on non-empty elements, but XSD is not omnipotent -->
 232                  <attribute name="deleted" use="optional" type="mw:DeletedFlagType" />
 233              </extension>
 234          </simpleContent>
 235      </complexType>
 236  
 237      <complexType name="LogParamsType">
 238          <simpleContent>
 239              <extension base="string">
 240                  <attribute ref="xml:space" use="optional" default="preserve" />
 241              </extension>
 242          </simpleContent>
 243      </complexType>
 244  
 245      <complexType name="ContributorType">
 246          <sequence>
 247              <element name="username" type="string" minOccurs="0" />
 248              <element name="id" type="nonNegativeInteger" minOccurs="0" />
 249  
 250              <element name="ip" type="string" minOccurs="0" />
 251          </sequence>
 252          <!-- This allows deleted=deleted on non-empty elements, but XSD is not omnipotent -->
 253          <attribute name="deleted" use="optional" type="mw:DeletedFlagType" />
 254      </complexType>
 255  
 256      <complexType name="UploadType">
 257          <sequence>
 258              <!-- Revision-style data... -->
 259              <element name="timestamp" type="dateTime" />
 260              <element name="contributor" type="mw:ContributorType" />
 261              <element name="comment" type="string" minOccurs="0" />
 262  
 263              <!-- Filename. (Using underscores, not spaces. No 'File:' namespace marker.) -->
 264              <element name="filename" type="string" />
 265  
 266              <!-- URI at which this resource can be obtained -->
 267              <element name="src" type="anyURI" />
 268  
 269              <element name="size" type="positiveInteger" />
 270  
 271              <!-- TODO: add other metadata fields -->
 272          </sequence>
 273      </complexType>
 274  
 275      <!-- Discussion threading data for LiquidThreads -->
 276      <complexType name="DiscussionThreadingInfo">
 277          <sequence>
 278              <element name="ThreadSubject" type="string" />
 279              <element name="ThreadParent" type="positiveInteger" />
 280              <element name="ThreadAncestor" type="positiveInteger" />
 281              <element name="ThreadPage" type="string" />
 282              <element name="ThreadID" type="positiveInteger" />
 283              <element name="ThreadAuthor" type="string" />
 284              <element name="ThreadEditStatus" type="string" />
 285              <element name="ThreadType" type="string" />
 286          </sequence>
 287      </complexType>
 288  
 289  </schema>