The version and encoding properties

<?xml version="1.0" encoding="UTF-16"?>

• Infoset includes the version and encoding from the XML declaration; SAX2 does not.

• Unlike standalone, these apply to all parsed entities; not just the document entity

• Solution:

  package org.xml.sax.ext;
  
  public interface Locator2 extends Locator {
    public String getXMLVersion ();
    public String getEncoding ();
  }
  

  This would be implemented by Locator objects passed to setDocumentLocator() methods

  The read-only feature http://xml.org/sax/features/use-locator2 says whether Locator2's are used.

• To make matters worse, there can be as many as three encodings:

  • What's declared in the document using an encoding declaration in the XML declaration

  • The MIME type encoding, as specified by the the HTTP header

  • The name of the encoding used by a java.io.InputStreamReader (UTF8 vs. UTF-8)