| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 1999 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 java.lang.StringBuffer; |
| import org.w3c.dom.Node; |
| |
| import javax.xml.transform.TransformerException; |
| |
| import org.apache.xalan.templates.ElemText; |
| import org.apache.xalan.templates.ElemTextLiteral; |
| import org.apache.xalan.templates.ElemTemplateElement; |
| import org.apache.xalan.templates.Constants; |
| import org.apache.xml.utils.XMLCharacterRecognizer; |
| |
| /** |
| * This class processes character events for a XSLT template element. |
| * @see <a href="http://www.w3.org/TR/xslt#dtd">XSLT DTD</a> |
| * @see <a href="http://www.w3.org/TR/xslt#section-Creating-the-Result-Tree">section-Creating-the-Result-Tree in XSLT Specification</a> |
| */ |
| public class ProcessorCharacters extends XSLTElementProcessor |
| { |
| |
| /** |
| * Receive notification of the start of the non-text event. This |
| * is sent to the current processor when any non-text event occurs. |
| * |
| * @param handler non-null reference to current StylesheetHandler that is constructing the Templates. |
| */ |
| public void startNonText(StylesheetHandler handler) throws org.xml.sax.SAXException |
| { |
| if (this == handler.getCurrentProcessor()) |
| { |
| handler.popProcessor(); |
| } |
| |
| int nChars = m_accumulator.length(); |
| |
| if ((nChars > 0) |
| && ((null != m_xslTextElement) |
| ||!XMLCharacterRecognizer.isWhiteSpace(m_accumulator)) |
| || handler.isSpacePreserve()) |
| { |
| ElemTextLiteral elem = new ElemTextLiteral(); |
| |
| elem.setDOMBackPointer(m_firstBackPointer); |
| elem.setLocaterInfo(handler.getLocator()); |
| try |
| { |
| elem.setPrefixes(handler.getNamespaceSupport()); |
| } |
| catch(TransformerException te) |
| { |
| throw new org.xml.sax.SAXException(te); |
| } |
| |
| boolean doe = (null != m_xslTextElement) |
| ? m_xslTextElement.getDisableOutputEscaping() : false; |
| |
| elem.setDisableOutputEscaping(doe); |
| elem.setPreserveSpace(true); |
| |
| char[] chars = new char[nChars]; |
| |
| m_accumulator.getChars(0, nChars, chars, 0); |
| elem.setChars(chars); |
| |
| ElemTemplateElement parent = handler.getElemTemplateElement(); |
| |
| parent.appendChild(elem); |
| } |
| |
| m_accumulator.setLength(0); |
| m_firstBackPointer = null; |
| } |
| |
| protected Node m_firstBackPointer = null; |
| |
| /** |
| * Receive notification of character data inside an element. |
| * |
| * |
| * @param handler non-null reference to current StylesheetHandler that is constructing the Templates. |
| * @param ch The characters. |
| * @param start The start position in the character array. |
| * @param length The number of characters to use from the |
| * character array. |
| * @throws org.xml.sax.SAXException Any SAX exception, possibly |
| * wrapping another exception. |
| * @see org.xml.sax.ContentHandler#characters |
| */ |
| public void characters( |
| StylesheetHandler handler, char ch[], int start, int length) |
| throws org.xml.sax.SAXException |
| { |
| |
| m_accumulator.append(ch, start, length); |
| |
| if(null == m_firstBackPointer) |
| m_firstBackPointer = handler.getOriginatingNode(); |
| |
| // Catch all events until a non-character event. |
| if (this != handler.getCurrentProcessor()) |
| handler.pushProcessor(this); |
| } |
| |
| /** |
| * Receive notification of the end of an element. |
| * |
| * @param handler The calling StylesheetHandler/TemplatesBuilder. |
| * @param uri The Namespace URI, or the empty string if the |
| * element has no Namespace URI or if Namespace |
| * processing is not being performed. |
| * @param localName The local name (without prefix), or the |
| * empty string if Namespace processing is not being |
| * performed. |
| * @param rawName The raw XML 1.0 name (with prefix), or the |
| * empty string if raw names are not available. |
| * @param atts The attributes attached to the element. If |
| * there are no attributes, it shall be an empty |
| * Attributes object. |
| * @see org.apache.xalan.processor.StylesheetHandler#startElement |
| * @see org.apache.xalan.processor.StylesheetHandler#endElement |
| * @see org.xml.sax.ContentHandler#startElement |
| * @see org.xml.sax.ContentHandler#endElement |
| * @see org.xml.sax.Attributes |
| */ |
| public void endElement( |
| StylesheetHandler handler, String uri, String localName, String rawName) |
| throws org.xml.sax.SAXException |
| { |
| |
| // Since this has been installed as the current processor, we |
| // may get and end element event, in which case, we pop and clear |
| // and then call the real element processor. |
| startNonText(handler); |
| handler.getCurrentProcessor().endElement(handler, uri, localName, |
| rawName); |
| handler.popProcessor(); |
| } |
| |
| /** |
| * Accumulate characters, until a non-whitespace event has |
| * occured. |
| */ |
| private StringBuffer m_accumulator = new StringBuffer(); |
| |
| /** |
| * The xsl:text processor will call this to set a |
| * preserve space state. |
| */ |
| private ElemText m_xslTextElement; |
| |
| /** |
| * Set the current setXslTextElement. The xsl:text |
| * processor will call this to set a preserve space state. |
| * |
| * @param xslTextElement The current xslTextElement that |
| * is preserving state, or null. |
| */ |
| void setXslTextElement(ElemText xslTextElement) |
| { |
| m_xslTextElement = xslTextElement; |
| } |
| } |