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/*
 * Copyright (c) 2001-2013 Oracle and/or its affiliates. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   - Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   - Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 *   - Neither the name of Oracle nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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 */

package com.sun.msv.relaxns.reader.relax;

import org.xml.sax.Locator;

import com.sun.msv.grammar.Expression;
import com.sun.msv.reader.ExpressionWithoutChildState;
import com.sun.msv.relaxns.grammar.relax.AnyOtherElementExp;

/**
 * parses <anyOtherElement> state.
 * 
 * To create an expression that implements the semantics of anyOtherElement,
 * the entire grammar must be parsed first.
 * 
 * @author Kohsuke KAWAGUCHI
 */
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},
                RELAXCoreIslandSchemaReader.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;
    }
    
}