- /*
- * 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;
- }
- }