/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 1999-2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Xalan" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR
* ITS 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 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 1999, Lotus
* Development Corporation., http://www.lotus.com. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.xalan.processor;
import org.apache.xalan.templates.ElemExsltFuncResult;
import org.apache.xalan.templates.ElemExsltFunction;
import org.apache.xalan.templates.ElemParam;
import org.apache.xalan.templates.ElemTemplateElement;
import org.apache.xalan.templates.ElemVariable;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
/**
* <meta name="usage" content="internal"/>
* This class processes parse events for an exslt func:result element.
*/
public class ProcessorExsltFuncResult extends ProcessorTemplateElem
{
/**
* Verify that the func:result element does not appear within a variable,
* parameter, or another func:result, and that it belongs to a func:function
* element.
*/
public void startElement(
StylesheetHandler handler, String uri, String localName, String rawName, Attributes attributes)
throws SAXException
{
String msg = "";
super.startElement(handler, uri, localName, rawName, attributes);
ElemTemplateElement ancestor = handler.getElemTemplateElement().getParentElem();
while (ancestor != null && !(ancestor instanceof ElemExsltFunction))
{
if (ancestor instanceof ElemVariable
|| ancestor instanceof ElemParam
|| ancestor instanceof ElemExsltFuncResult)
{
msg = "func:result cannot appear within a variable, parameter, or another func:result.";
handler.error(msg, new SAXException(msg));
}
ancestor = ancestor.getParentElem();
}
if (ancestor == null)
{
msg = "func:result must appear in a func:function element";
handler.error(msg, new SAXException(msg));
}
}
}