1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 /* 19 * $Id: ProcessorExsltFuncResult.java 468640 2006-10-28 06:53:53Z minchau $ 20 */ 21 package org.apache.xalan.processor; 22 23 import org.apache.xalan.templates.ElemExsltFuncResult; 24 import org.apache.xalan.templates.ElemExsltFunction; 25 import org.apache.xalan.templates.ElemParam; 26 import org.apache.xalan.templates.ElemTemplateElement; 27 import org.apache.xalan.templates.ElemVariable; 28 29 import org.xml.sax.Attributes; 30 import org.xml.sax.SAXException; 31 32 /** 33 * This class processes parse events for an exslt func:result element. 34 * @xsl.usage internal 35 */ 36 public class ProcessorExsltFuncResult extends ProcessorTemplateElem 37 { 38 static final long serialVersionUID = 6451230911473482423L; 39 40 /** 41 * Verify that the func:result element does not appear within a variable, 42 * parameter, or another func:result, and that it belongs to a func:function 43 * element. 44 */ startElement( StylesheetHandler handler, String uri, String localName, String rawName, Attributes attributes)45 public void startElement( 46 StylesheetHandler handler, String uri, String localName, String rawName, Attributes attributes) 47 throws SAXException 48 { 49 String msg = ""; 50 51 super.startElement(handler, uri, localName, rawName, attributes); 52 ElemTemplateElement ancestor = handler.getElemTemplateElement().getParentElem(); 53 while (ancestor != null && !(ancestor instanceof ElemExsltFunction)) 54 { 55 if (ancestor instanceof ElemVariable 56 || ancestor instanceof ElemParam 57 || ancestor instanceof ElemExsltFuncResult) 58 { 59 msg = "func:result cannot appear within a variable, parameter, or another func:result."; 60 handler.error(msg, new SAXException(msg)); 61 } 62 ancestor = ancestor.getParentElem(); 63 } 64 if (ancestor == null) 65 { 66 msg = "func:result must appear in a func:function element"; 67 handler.error(msg, new SAXException(msg)); 68 } 69 } 70 } 71