wdef.xsd

   1 <?xml version="1.0" encoding="utf-8"?>
   2 <!--
   3 Schemas required to validate WDEF compatible XML content.
   4 Copyright (C) 2020, 2021  Pierre Choffet
   5
   6 This program is free software: you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation, either version 3 of the License.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program.  If not, see <https://www.gnu.org/licenses/>.
  17 -->
  18
  19 <xsd:schema xml:lang="en" xmlns:wdef="https://purl.choffet.net/wdef"
  20             xmlns:xsd="http://www.w3.org/2001/XMLSchema"
  21             targetNamespace="https://purl.choffet.net/wdef" attributeFormDefault="qualified"
  22             elementFormDefault="qualified">
  23         <xsd:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="xml.xsd" />
  24
  25         <xsd:element name="knowledge">
  26                 <xsd:annotation>
  27                         <xsd:documentation>
  28                                 The root of a WDEF content. It can contain one or more element only.
  29                         </xsd:documentation>
  30                 </xsd:annotation>
  31                 <xsd:complexType>
  32                         <xsd:sequence>
  33                                 <xsd:element ref="wdef:element" minOccurs="0" maxOccurs="unbounded" />
  34                         </xsd:sequence>
  35                 </xsd:complexType>
  36
  37                 <xsd:key name="key-element">
  38                         <xsd:selector xpath="wdef:element" />
  39                         <xsd:field xpath="@wdef:id" />
  40                 </xsd:key>
  41         </xsd:element>
  42
  43         <xsd:element name="element">
  44                 <xsd:annotation>
  45                         <xsd:documentation>
  46                                 A Wikidata element.
  47                         </xsd:documentation>
  48                 </xsd:annotation>
  49                 <xsd:complexType>
  50                         <xsd:choice maxOccurs="unbounded">
  51                                 <xsd:element ref="wdef:label" />
  52                                 <xsd:element ref="wdef:description" />
  53                                 <xsd:element ref="wdef:alias" />
  54                                 <xsd:element ref="wdef:property" />
  55                         </xsd:choice>
  56                         <xsd:attribute name="id" type="wdef:element-id" use="required" />
  57                         <xsd:anyAttribute processContents="skip" />
  58                 </xsd:complexType>
  59
  60                 <xsd:key name="key-property">
  61                         <xsd:selector xpath="wdef:property" />
  62                         <xsd:field xpath="@wdef:id" />
  63                 </xsd:key>
  64
  65                 <xsd:key name="key-value">
  66                         <xsd:selector xpath="wdef:value" />
  67                         <xsd:field xpath="@wdef:id" />
  68                 </xsd:key>
  69
  70                 <xsd:unique name="unique-label-lang">
  71                         <xsd:selector xpath="wdef:label" />
  72                         <xsd:field xpath="@xml:lang" />
  73                 </xsd:unique>
  74
  75                 <xsd:unique name="unique-description-lang">
  76                         <xsd:selector xpath="wdef:description" />
  77                         <xsd:field xpath="@xml:lang" />
  78                 </xsd:unique>
  79         </xsd:element>
  80
  81         <xsd:element name="label" type="wdef:translation" />
  82         <xsd:element name="description" type="wdef:translation" />
  83         <xsd:element name="alias" type="wdef:translation" />
  84
  85         <xsd:element name="property">
  86                 <xsd:annotation>
  87                         <xsd:documentation>
  88                                 A Wikidata property.
  89                         </xsd:documentation>
  90                 </xsd:annotation>
  91                 <xsd:complexType>
  92                         <xsd:choice maxOccurs="unbounded">
  93                                 <xsd:element ref="wdef:value" />
  94                                 <xsd:element ref="wdef:novalue" maxOccurs="1" />
  95                                 <xsd:element ref="wdef:somevalue" maxOccurs="1" />
  96                         </xsd:choice>
  97                         <xsd:attribute name="id" type="wdef:property-id2" use="required" />
  98                         <xsd:attribute name="pid" type="wdef:property-id" use="required" />
  99                         <xsd:anyAttribute processContents="skip" />
 100                 </xsd:complexType>
 101         </xsd:element>
 102
 103         <xsd:element name="value">
 104                 <xsd:annotation>
 105                         <xsd:documentation>
 106                                 A Wikidata value.
 107                         </xsd:documentation>
 108                 </xsd:annotation>
 109                 <xsd:complexType>
 110                         <xsd:choice maxOccurs="unbounded">
 111                                 <xsd:element ref="wdef:literal" maxOccurs="1" />
 112                                 <xsd:element ref="wdef:ref-element" maxOccurs="1" />
 113                                 <xsd:element ref="wdef:translation" maxOccurs="1" />
 114                                 <xsd:element ref="wdef:quantity" maxOccurs="1" />
 115                                 <xsd:element ref="wdef:time" maxOccurs="1" />
 116                                 <xsd:element ref="wdef:coordinate" maxOccurs="1" />
 117                                 <xsd:element ref="wdef:qualifier" />
 118                         </xsd:choice>
 119                         <xsd:attribute name="id" type="wdef:value-id" use="required" />
 120                 </xsd:complexType>
 121         </xsd:element>
 122
 123         <xsd:element name="literal" type="xsd:normalizedString" />
 124
 125         <xsd:element name="ref-element" type="wdef:element-id" />
 126
 127         <xsd:element name="translation" type="wdef:translation" />
 128
 129         <xsd:element name="quantity">
 130                 <xsd:complexType>
 131                         <xsd:simpleContent>
 132                                 <xsd:extension base="xsd:decimal">
 133                                         <xsd:attribute name="unit" type="wdef:element-id" use="required" />
 134                                 </xsd:extension>
 135                         </xsd:simpleContent>
 136                 </xsd:complexType>
 137         </xsd:element>
 138
 139         <xsd:element name="time">
 140                 <xsd:complexType>
 141                         <xsd:simpleContent>
 142                                 <xsd:extension base="wdef:date-time">
 143                                         <xsd:attribute name="precision" use="required">
 144                                                 <xsd:simpleType>
 145                                                         <xsd:restriction base="xsd:positiveInteger">
 146                                                                 <xsd:maxInclusive value="14" />
 147                                                         </xsd:restriction>
 148                                                 </xsd:simpleType>
 149                                         </xsd:attribute>
 150                                         <xsd:attribute name="calendar" use="required">
 151                                                 <xsd:simpleType>
 152                                                         <xsd:restriction base="xsd:normalizedString">
 153                                                                 <xsd:enumeration value="julian" />
 154                                                                 <xsd:enumeration value="gregorian" />
 155                                                         </xsd:restriction>
 156                                                 </xsd:simpleType>
 157                                         </xsd:attribute>
 158                                 </xsd:extension>
 159                         </xsd:simpleContent>
 160                 </xsd:complexType>
 161         </xsd:element>
 162
 163         <xsd:element name="coordinate">
 164                 <xsd:complexType>
 165                         <xsd:simpleContent>
 166                                 <xsd:extension base="wdef:date-time">
 167                                         <xsd:attribute name="latitude" use="required">
 168                                                 <xsd:simpleType>
 169                                                         <xsd:restriction base="xsd:float">
 170                                                                 <xsd:minInclusive value="-90" />
 171                                                                 <xsd:maxInclusive value="90" />
 172                                                         </xsd:restriction>
 173                                                 </xsd:simpleType>
 174                                         </xsd:attribute>
 175                                         <xsd:attribute name="longitude" use="required">
 176                                                 <xsd:simpleType>
 177                                                         <xsd:restriction base="xsd:float">
 178                                                                 <xsd:minInclusive value="-180" />
 179                                                                 <xsd:maxInclusive value="180" />
 180                                                         </xsd:restriction>
 181                                                 </xsd:simpleType>
 182                                         </xsd:attribute>
 183                                 </xsd:extension>
 184                         </xsd:simpleContent>
 185                 </xsd:complexType>
 186         </xsd:element>
 187
 188         <xsd:element name="novalue">
 189                 <xsd:complexType>
 190                         <xsd:choice maxOccurs="unbounded">
 191                                 <xsd:element ref="wdef:qualifier" />
 192                         </xsd:choice>
 193                         <xsd:attribute name="id" type="wdef:value-id" use="required" />
 194                 </xsd:complexType>
 195         </xsd:element>
 196
 197         <xsd:element name="somevalue">
 198                 <xsd:complexType />
 199         </xsd:element>
 200
 201         <xsd:element name="qualifier">
 202                 <xsd:complexType>
 203                         <xsd:all>
 204                                 <xsd:element ref="wdef:property" />
 205                         </xsd:all>
 206                         <xsd:anyAttribute processContents="skip" />
 207                 </xsd:complexType>
 208         </xsd:element>
 209
 210         <!-- Attributes groups -->
 211
 212         <!-- Types -->
 213         <xsd:complexType name="translation">
 214                 <xsd:simpleContent>
 215                         <xsd:extension base="wdef:non-empty-normalized-string">
 216                                 <xsd:attribute ref="xml:lang" use="required" />
 217                         </xsd:extension>
 218                 </xsd:simpleContent>
 219         </xsd:complexType>
 220
 221         <xsd:simpleType name="element-id">
 222                 <xsd:restriction base="xsd:normalizedString">
 223                         <xsd:pattern value="(\?E|Q)[0-9]+" />
 224                 </xsd:restriction>
 225         </xsd:simpleType>
 226
 227         <xsd:simpleType name="property-id">
 228                 <xsd:restriction base="xsd:normalizedString">
 229                         <xsd:pattern value="P[0-9]+" />
 230                 </xsd:restriction>
 231         </xsd:simpleType>
 232
 233         <xsd:simpleType name="property-id2">
 234                 <xsd:restriction base="xsd:normalizedString">
 235                         <xsd:pattern value="\?P[0-9\?\-EP]+" />
 236                 </xsd:restriction>
 237         </xsd:simpleType>
 238
 239         <xsd:simpleType name="value-id">
 240                 <xsd:restriction base="xsd:normalizedString">
 241                         <xsd:pattern value="\?V.+" />
 242                 </xsd:restriction>
 243         </xsd:simpleType>
 244
 245         <xsd:simpleType name="non-empty-normalized-string">
 246                 <xsd:restriction base="xsd:normalizedString">
 247                         <xsd:minLength value="1" />
 248                 </xsd:restriction>
 249         </xsd:simpleType>
 250
 251         <xsd:simpleType name="date-time">
 252                 <xsd:restriction base="xsd:normalizedString">
 253                         <xsd:pattern value="(-|\+)[0-9]+-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}Z" />
 254                 </xsd:restriction>
 255         </xsd:simpleType>
 256 </xsd:schema>