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Current File : C:/Users/Mahmood/Desktop/moodle/lib/xmldb/xmldb.xsd

<?xml version="1.0" encoding="UTF-8" ?>

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:simpleType name="trueFalse" >
    <xs:restriction base="xs:NMTOKEN" >
     <xs:enumeration value="true" />
     <xs:enumeration value="false" />
    </xs:restriction >
  </xs:simpleType >

  <xs:simpleType name="tableName" >
    <xs:restriction base="xs:string" >
     <xs:pattern value='[0-9a-z_]{1,28}'/>
    </xs:restriction >
  </xs:simpleType >

  <xs:simpleType name="fieldName" >
    <xs:restriction base="xs:string" >
     <xs:pattern value='[0-9a-z_]{1,30}'/>
    </xs:restriction >
  </xs:simpleType >

  <xs:simpleType name="fieldType">
    <xs:restriction base="xs:NMTOKEN">
      <xs:enumeration value="int" />
      <xs:enumeration value="number" />
      <xs:enumeration value="float" />
      <xs:enumeration value="char" />
      <xs:enumeration value="text" />
      <xs:enumeration value="binary" />
      <xs:enumeration value="datetime" />
    </xs:restriction>
  </xs:simpleType>

  <xs:simpleType name="fieldLength" >
    <xs:restriction base="xs:string" >
    <!-- TODO: Moodle 2.5 - Drop LOB sizes, keep only numbers -->
     <xs:pattern value='(\d+)|(small|medium|big)'/>
    </xs:restriction >
  </xs:simpleType >

  <xs:simpleType name="fieldsList" >
    <xs:restriction base="xs:string" >
     <xs:pattern value='[0-9a-z_, ]+'/>
    </xs:restriction >
  </xs:simpleType >

  <xs:simpleType name="keyType">
    <xs:restriction base="xs:NMTOKEN">
      <xs:enumeration value="primary" />
      <xs:enumeration value="unique" />
      <xs:enumeration value="foreign" />
      <xs:enumeration value="foreign-unique" />
    </xs:restriction>
  </xs:simpleType>


  <xs:element name="FIELD">
    <xs:complexType>
      <xs:attribute name="NAME"       type="fieldName"   use="required" />
      <xs:attribute name="SEQUENCE"   type="trueFalse"   use="required" />
      <xs:attribute name="TYPE"       type="fieldType"   use="required" />
      <xs:attribute name="LENGTH"     type="fieldLength" use="optional" />
      <xs:attribute name="NOTNULL"    type="trueFalse"   use="required" />
      <xs:attribute name="DECIMALS"   type="xs:positiveInteger" use="optional" />
      <!-- TODO: Moodle 2.4 - Drop ignored UNSIGNED attribute -->
      <xs:attribute name="UNSIGNED"   type="trueFalse"   use="optional" />
      <xs:attribute name="DEFAULT"    type="xs:string"   use="optional" />
      <xs:attribute name="COMMENT"    type="xs:string"   use="optional" />
      <!-- TODO: Moodle 2.6 - Drop ignored PREVIOUS/NEXT attributes -->
      <xs:attribute name="PREVIOUS"   type="fieldName"   use="optional" />
      <xs:attribute name="NEXT"       type="fieldName"   use="optional" />
    </xs:complexType>
  </xs:element>

  <xs:element name="FIELDS">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="FIELD" maxOccurs="unbounded" />
      </xs:sequence>
    </xs:complexType>
  </xs:element>

  <xs:element name="INDEX">
    <xs:complexType>
      <xs:attribute name="NAME"     type="xs:NMTOKEN" use="required" />
      <xs:attribute name="UNIQUE"   type="trueFalse"  use="required" />
      <xs:attribute name="FIELDS"   type="fieldsList" use="required" />
      <xs:attribute name="HINTS"    type="xs:string"  use="optional" />
      <xs:attribute name="COMMENT"  type="xs:string"  use="optional" />
      <!-- TODO: Moodle 2.6 - Drop ignored PREVIOUS/NEXT attributes -->
      <xs:attribute name="PREVIOUS" type="xs:NMTOKEN" use="optional" />
      <xs:attribute name="NEXT"     type="xs:NMTOKEN" use="optional" />
    </xs:complexType>
  </xs:element>

  <xs:element name="INDEXES">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="INDEX" maxOccurs="unbounded" />
      </xs:sequence>
    </xs:complexType>
  </xs:element>

  <xs:element name="KEY">
    <xs:complexType>
      <xs:attribute name="NAME"      type="xs:NMTOKEN" use="required" />
      <xs:attribute name="TYPE"      type="keyType"    use="required" />
      <xs:attribute name="FIELDS"    type="fieldsList" use="required" />
      <xs:attribute name="REFTABLE"  type="tableName"  use="optional" />
      <xs:attribute name="REFFIELDS" type="fieldsList" use="optional" />
      <xs:attribute name="COMMENT"   type="xs:string"  use="optional" />
      <!-- TODO: Moodle 2.6 - Drop ignored PREVIOUS/NEXT attributes -->
      <xs:attribute name="PREVIOUS"  type="xs:NMTOKEN" use="optional" />
      <xs:attribute name="NEXT"      type="xs:NMTOKEN" use="optional" />
    </xs:complexType>
  </xs:element>

  <xs:element name="KEYS">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="KEY" maxOccurs="unbounded" />
      </xs:sequence>
    </xs:complexType>
  </xs:element>

  <xs:element name="SENTENCE">
    <xs:complexType>
      <xs:attribute name="TEXT" type="xs:string" use="required" />
    </xs:complexType>
  </xs:element>

  <xs:element name="SENTENCES">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="SENTENCE" maxOccurs="unbounded" />
      </xs:sequence>
    </xs:complexType>
  </xs:element>

  <xs:element name="TABLE">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="FIELDS" />
        <xs:element ref="KEYS"    minOccurs="0" />
        <xs:element ref="INDEXES" minOccurs="0" />
      </xs:sequence>
      <xs:attribute name="NAME"     type="tableName" use="required" />
      <xs:attribute name="COMMENT"  type="xs:string" use="optional" />
      <!-- TODO: Moodle 2.6 - Drop ignored PREVIOUS/NEXT attributes -->
      <xs:attribute name="PREVIOUS" type="tableName" use="optional" />
      <xs:attribute name="NEXT"     type="tableName" use="optional" />
    </xs:complexType>
  </xs:element>

  <xs:element name="TABLES">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="TABLE" maxOccurs="unbounded" />
      </xs:sequence>
    </xs:complexType>
  </xs:element>

  <xs:element name="XMLDB">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="TABLES"     minOccurs="0" />
      </xs:sequence>
      <xs:attribute name="PATH"    type="xs:string" use="required" />
      <xs:attribute name="VERSION" type="xs:string" use="required" />
      <xs:attribute name="COMMENT" type="xs:string" use="optional" />
    </xs:complexType>
  </xs:element>

</xs:schema>