/*
* @(#)$Id: TagState.java 1566 2003-06-09 20:37:49Z kk122374 $
*
* Copyright 2001 Sun Microsystems, Inc. All Rights Reserved.
*
* This software is the proprietary information of Sun Microsystems, Inc.
* Use is subject to license terms.
*
*/
package com.sun.msv.reader.relax.core;
import org.xml.sax.Locator;
import com.sun.msv.grammar.SimpleNameClass;
import com.sun.msv.grammar.relax.TagClause;
/**
* parses <tag> element.
*
* @author <a href="mailto:kohsuke.kawaguchi@eng.sun.com">Kohsuke KAWAGUCHI</a>
*/
public class TagState extends ClauseState
{
protected void endSelf( )
{
super.endSelf();
final String name = startTag.getAttribute("name");
String role = startTag.getAttribute("role");
if(role==null) role=name; // role defaults to name
if(name==null)
{
reader.reportError(RELAXCoreReader.ERR_MISSING_ATTRIBUTE, "tag","name");
return;
}
TagClause c = getReader().module.tags.getOrCreate(role);
if(c.nameClass!=null)
{
// someone has already initialized this clause.
// this happens when more than one tag element declares the same role.
reader.reportError(
new Locator[]{getReader().getDeclaredLocationOf(c),location},
RELAXCoreReader.ERR_MULTIPLE_TAG_DECLARATIONS, new Object[]{role} );
// recover from error by ignoring previous tag declaration
}
c.nameClass = new SimpleNameClass(
getReader().module.targetNamespace,
name );
c.exp = exp; // exp holds a sequence of AttributeExp
getReader().setDeclaredLocationOf(c); // remember where this tag is declared
return;
}
}