/*
 * @(#)$Id: AnyOtherElementState.java,v 1.2 2001/05/01 18:13:25 Bear Exp $
 *
 * 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.relaxns.reader.relax;

import com.sun.msv.reader.ExpressionWithoutChildState;
import com.sun.msv.grammar.*;
import com.sun.msv.grammar.relax.ElementRule;
import com.sun.msv.grammar.relax.TagClause;
import com.sun.msv.relaxns.grammar.relax.AnyOtherElementExp;
import org.xml.sax.Locator;

/**
 * parses <anyOtherElement> state.
 * 
 * To create an expression that implements the semantics of anyOtherElement,
 * the entire grammar must be parsed first.
 * 
 * @author <a href="mailto:kohsuke.kawaguchi@eng.sun.com">Kohsuke KAWAGUCHI</a>
 */
public class AnyOtherElementState extends ExpressionWithoutChildState
{
	protected Expression makeExpression() {
		// when makeExpression is called, return only a skelton.
		// later, after the entire grammar is parsed, we'll provide
		// actual expression.
		
		String in = startTag.getAttribute("includeNamespace");
		String ex = startTag.getAttribute("excludeNamespace");

		if( in!=null && ex!=null ) {
			reader.reportError(
				new Locator[]{this.location},
				reader.ERR_CONFLICTING_ATTRIBUTES,
				new Object[]{"includeNamespace", "excludeNamespace"} );
			ex=null;
		}
		
		if( in==null && ex==null )
			ex="";	// this will correctly implement the semantics.
		
		final AnyOtherElementExp exp = new AnyOtherElementExp( this.location, in, ex );
		((RELAXCoreIslandSchemaReader)reader).pendingAnyOtherElements.add(exp);
		return exp;
	}
	
}