19f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson/* 29f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Licensed to the Apache Software Foundation (ASF) under one 39f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * or more contributor license agreements. See the NOTICE file 49f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * distributed with this work for additional information 59f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * regarding copyright ownership. The ASF licenses this file 69f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * to you under the Apache License, Version 2.0 (the "License"); 79f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * you may not use this file except in compliance with the License. 89f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * You may obtain a copy of the License at 99f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 109f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * http://www.apache.org/licenses/LICENSE-2.0 119f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 129f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Unless required by applicable law or agreed to in writing, software 139f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * distributed under the License is distributed on an "AS IS" BASIS, 149f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 159f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * See the License for the specific language governing permissions and 169f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * limitations under the License. 179f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 189f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson/* 199f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * $Id: ProcessorCharacters.java 468640 2006-10-28 06:53:53Z minchau $ 209f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 219f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonpackage org.apache.xalan.processor; 229f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 239f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport javax.xml.transform.TransformerException; 249f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 259f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport org.apache.xalan.templates.ElemTemplateElement; 269f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport org.apache.xalan.templates.ElemText; 279f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport org.apache.xalan.templates.ElemTextLiteral; 289f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport org.apache.xml.utils.XMLCharacterRecognizer; 299f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 309f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport org.w3c.dom.Node; 319f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 329f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson/** 339f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * This class processes character events for a XSLT template element. 349f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see <a href="http://www.w3.org/TR/xslt#dtd">XSLT DTD</a> 359f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see <a href="http://www.w3.org/TR/xslt#section-Creating-the-Result-Tree">section-Creating-the-Result-Tree in XSLT Specification</a> 369f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 379f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonpublic class ProcessorCharacters extends XSLTElementProcessor 389f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson{ 399f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson static final long serialVersionUID = 8632900007814162650L; 409f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 419f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 429f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Receive notification of the start of the non-text event. This 439f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * is sent to the current processor when any non-text event occurs. 449f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 459f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param handler non-null reference to current StylesheetHandler that is constructing the Templates. 469f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 479f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public void startNonText(StylesheetHandler handler) throws org.xml.sax.SAXException 489f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 499f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (this == handler.getCurrentProcessor()) 509f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 519f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson handler.popProcessor(); 529f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 539f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 549f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson int nChars = m_accumulator.length(); 559f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 569f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if ((nChars > 0) 579f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson && ((null != m_xslTextElement) 589f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson ||!XMLCharacterRecognizer.isWhiteSpace(m_accumulator)) 599f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson || handler.isSpacePreserve()) 609f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 619f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson ElemTextLiteral elem = new ElemTextLiteral(); 629f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 639f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson elem.setDOMBackPointer(m_firstBackPointer); 649f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson elem.setLocaterInfo(handler.getLocator()); 659f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson try 669f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 679f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson elem.setPrefixes(handler.getNamespaceSupport()); 689f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 699f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson catch(TransformerException te) 709f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 719f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson throw new org.xml.sax.SAXException(te); 729f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 739f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 749f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson boolean doe = (null != m_xslTextElement) 759f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson ? m_xslTextElement.getDisableOutputEscaping() : false; 769f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 779f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson elem.setDisableOutputEscaping(doe); 789f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson elem.setPreserveSpace(true); 799f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 809f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson char[] chars = new char[nChars]; 819f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 829f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson m_accumulator.getChars(0, nChars, chars, 0); 839f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson elem.setChars(chars); 849f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 859f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson ElemTemplateElement parent = handler.getElemTemplateElement(); 869f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 879f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson parent.appendChild(elem); 889f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 899f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 909f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson m_accumulator.setLength(0); 919f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson m_firstBackPointer = null; 929f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 939f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 949f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson protected Node m_firstBackPointer = null; 959f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 969f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 979f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Receive notification of character data inside an element. 989f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 999f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1009f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param handler non-null reference to current StylesheetHandler that is constructing the Templates. 1019f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param ch The characters. 1029f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param start The start position in the character array. 1039f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param length The number of characters to use from the 1049f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * character array. 1059f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @throws org.xml.sax.SAXException Any SAX exception, possibly 1069f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * wrapping another exception. 1079f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see org.xml.sax.ContentHandler#characters 1089f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 1099f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public void characters( 1109f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson StylesheetHandler handler, char ch[], int start, int length) 1119f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson throws org.xml.sax.SAXException 1129f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1139f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1149f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson m_accumulator.append(ch, start, length); 1159f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1169f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if(null == m_firstBackPointer) 1179f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson m_firstBackPointer = handler.getOriginatingNode(); 1189f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1199f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // Catch all events until a non-character event. 1209f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (this != handler.getCurrentProcessor()) 1219f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson handler.pushProcessor(this); 1229f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1239f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1249f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 1259f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Receive notification of the end of an element. 1269f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1279f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param handler The calling StylesheetHandler/TemplatesBuilder. 1289f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param uri The Namespace URI, or the empty string if the 1299f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * element has no Namespace URI or if Namespace 1309f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * processing is not being performed. 1319f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param localName The local name (without prefix), or the 1329f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * empty string if Namespace processing is not being 1339f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * performed. 1349f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param rawName The raw XML 1.0 name (with prefix), or the 1359f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * empty string if raw names are not available. 1369f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see org.apache.xalan.processor.StylesheetHandler#startElement 1379f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see org.apache.xalan.processor.StylesheetHandler#endElement 1389f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see org.xml.sax.ContentHandler#startElement 1399f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see org.xml.sax.ContentHandler#endElement 1409f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see org.xml.sax.Attributes 1419f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 1429f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public void endElement( 1439f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson StylesheetHandler handler, String uri, String localName, String rawName) 1449f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson throws org.xml.sax.SAXException 1459f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1469f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1479f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // Since this has been installed as the current processor, we 1489f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // may get and end element event, in which case, we pop and clear 1499f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // and then call the real element processor. 1509f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson startNonText(handler); 1519f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson handler.getCurrentProcessor().endElement(handler, uri, localName, 1529f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson rawName); 1539f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson handler.popProcessor(); 1549f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1559f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1569f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 1579f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Accumulate characters, until a non-whitespace event has 1589f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * occured. 1599f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 1609f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson private StringBuffer m_accumulator = new StringBuffer(); 1619f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1629f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 1639f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * The xsl:text processor will call this to set a 1649f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * preserve space state. 1659f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 1669f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson private ElemText m_xslTextElement; 1679f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1689f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 1699f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Set the current setXslTextElement. The xsl:text 1709f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * processor will call this to set a preserve space state. 1719f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1729f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param xslTextElement The current xslTextElement that 1739f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * is preserving state, or null. 1749f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 1759f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson void setXslTextElement(ElemText xslTextElement) 1769f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1779f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson m_xslTextElement = xslTextElement; 1789f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1799f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson} 180