[xsl] XSD atribute repeated

Subject: [xsl] XSD atribute repeated
From: IZASKUN GUTIERREZ GUTIERREZ <igutierrez027@xxxxxxxxxxxxx>
Date: Fri, 30 May 2008 11:17:43 +0200
Hello everybody!

I have one file XSD to validate XML files. I have declarated one attribute.

Example:

This is the xml file:

<?xml version="1.0" encoding="windows-1252"?>
<file xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
 xsi:schemaLocation="http://bibtexml.sf.net/ esquema_mas_completo.xsd"
 xmlns="http://bibtexml.sf.net/";>

  <entry id="abc">
    <article>
      <author>Menindez, Isabel</author>
      <title>Actuar con prudencia</title>
     </article>
  </entry>

  <entry id="abc">
    <book>
      <author>Boyne, John</author>
      <year>2006</year>
     </book>
  </entry>

</file>

In the XSD file y have this:

  <xs:element name="entry">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="ns1:article" minOccurs="0" maxOccurs="unbounded"/>
        <xs:element ref="ns1:book" minOccurs="0" maxOccurs="unbounded"/>
      </xs:sequence>
      <xs:attribute name="id" use="required" type=" xs:token"/>
    </xs:complexType>
  </xs:element>

 I need that the XSD file not validate the XML file if in the XML
appears for example two atributes that have the same value. In the
example of xml, the atribute id is the same in both of entry (abc).

There is some way for not validate it?

Could anybody help me?

Thank You, Regards

Izaskun

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