/* * 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.serialize; import org.xml.sax.*; import java.util.*; import java.io.*; import org.apache.xpath.res.XPATHErrorResources; import org.apache.xalan.res.XSLMessages; import org.apache.xalan.templates.OutputProperties; import javax.xml.transform.OutputKeys; /** * <meta name="usage" content="general"/> * This class takes SAX events (in addition to some extra events * that SAX doesn't handle yet) and produces simple text only. */ public class SerializerToText extends SerializerToXML { /** * Default constructor. */ public SerializerToText() { super(); } /** * Receive an object for locating the origin of SAX document events. * * <p>SAX parsers are strongly encouraged (though not absolutely * required) to supply a locator: if it does so, it must supply * the locator to the application by invoking this method before * invoking any of the other methods in the DocumentHandler * interface.</p> * * <p>The locator allows the application to determine the end * position of any document-related event, even if the parser is * not reporting an error. Typically, the application will * use this information for reporting its own errors (such as * character content that does not match an application's * business rules). The information returned by the locator * is probably not sufficient for use with a search engine.</p> * * <p>Note that the locator will return correct information only * during the invocation of the events in this interface. The * application should not attempt to use it at any other time.</p> * * @param locator An object that can return the location of * any SAX document event. * @see org.xml.sax.Locator */ public void setDocumentLocator(Locator locator) { // No action for the moment. } /** * Receive notification of the beginning of a document. * * <p>The SAX parser will invoke this method only once, before any * other methods in this interface or in DTDHandler (except for * setDocumentLocator).</p> * * @throws org.xml.sax.SAXException Any SAX exception, possibly * wrapping another exception. * * @throws org.xml.sax.SAXException */ public void startDocument() throws org.xml.sax.SAXException { // No action for the moment. } /** * Receive notification of the end of a document. * * <p>The SAX parser will invoke this method only once, and it will * be the last method invoked during the parse. The parser shall * not invoke this method until it has either abandoned parsing * (because of an unrecoverable error) or reached the end of * input.</p> * * @throws org.xml.sax.SAXException Any SAX exception, possibly * wrapping another exception. * * @throws org.xml.sax.SAXException */ public void endDocument() throws org.xml.sax.SAXException { flushWriter(); } /** * Receive notification of the beginning of an element. * * <p>The Parser will invoke this method at the beginning of every * element in the XML document; there will be a corresponding * endElement() event for every startElement() event (even when the * element is empty). All of the element's content will be * reported, in order, before the corresponding endElement() * event.</p> * * <p>If the element name has a namespace prefix, the prefix will * still be attached. Note that the attribute list provided will * contain only attributes with explicit values (specified or * defaulted): #IMPLIED attributes will be omitted.</p> * * * @param namespaceURI 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 name The qualified name (with prefix), or the * empty string if qualified names are not available. * @param atts The attributes attached to the element, if any. * @throws org.xml.sax.SAXException Any SAX exception, possibly * wrapping another exception. * @see #endElement * @see org.xml.sax.AttributeList * * @throws org.xml.sax.SAXException */ public void startElement( String namespaceURI, String localName, String name, Attributes atts) throws org.xml.sax.SAXException { // No action for the moment. } /** * Receive notification of the end of an element. * * <p>The SAX parser will invoke this method at the end of every * element in the XML document; there will be a corresponding * startElement() event for every endElement() event (even when the * element is empty).</p> * * <p>If the element name has a namespace prefix, the prefix will * still be attached to the name.</p> * * * @param namespaceURI 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 name The qualified name (with prefix), or the * empty string if qualified names are not available. * @param name The element type name * @throws org.xml.sax.SAXException Any SAX exception, possibly * wrapping another exception. * * @throws org.xml.sax.SAXException */ public void endElement(String namespaceURI, String localName, String name) throws org.xml.sax.SAXException { // No action for the moment. } /** * Receive notification of character data. * * <p>The Parser will call this method to report each chunk of * character data. SAX parsers may return all contiguous character * data in a single chunk, or they may split it into several * chunks; however, all of the characters in any single event * must come from the same external entity, so that the Locator * provides useful information.</p> * * <p>The application must not attempt to read from the array * outside of the specified range.</p> * * <p>Note that some parsers will report whitespace using the * ignorableWhitespace() method rather than this one (validating * parsers must do so).</p> * * @param ch The characters from the XML document. * @param start The start position in the array. * @param length The number of characters to read from the array. * @throws org.xml.sax.SAXException Any SAX exception, possibly * wrapping another exception. * @see #ignorableWhitespace * @see org.xml.sax.Locator */ public void characters(char ch[], int start, int length) throws org.xml.sax.SAXException { // this.accum(ch, start, length); try { writeNormalizedChars(ch, start, length, false); } catch(IOException ioe) { throw new SAXException(ioe); } this.flushWriter(); // flushWriter(); } /** * If available, when the disable-output-escaping attribute is used, * output raw text without escaping. * * @param ch The characters from the XML document. * @param start The start position in the array. * @param length The number of characters to read from the array. * * @throws org.xml.sax.SAXException Any SAX exception, possibly * wrapping another exception. */ public void charactersRaw(char ch[], int start, int length) throws org.xml.sax.SAXException { // accum(ch, start, length); try { writeNormalizedChars(ch, start, length, false); } catch(IOException ioe) { throw new SAXException(ioe); } flushWriter(); // flushWriter(); } /** * Receive notification of cdata. * * <p>The Parser will call this method to report each chunk of * character data. SAX parsers may return all contiguous character * data in a single chunk, or they may split it into several * chunks; however, all of the characters in any single event * must come from the same external entity, so that the Locator * provides useful information.</p> * * <p>The application must not attempt to read from the array * outside of the specified range.</p> * * <p>Note that some parsers will report whitespace using the * ignorableWhitespace() method rather than this one (validating * parsers must do so).</p> * * @param ch The characters from the XML document. * @param start The start position in the array. * @param length The number of characters to read from the array. * @throws org.xml.sax.SAXException Any SAX exception, possibly * wrapping another exception. * @see #ignorableWhitespace * @see org.xml.sax.Locator */ public void cdata(char ch[], int start, int length) throws org.xml.sax.SAXException { // accum(ch, start, length); try { writeNormalizedChars(ch, start, length, false); } catch(IOException ioe) { throw new SAXException(ioe); } flushWriter(); // flushWriter(); } /** * Receive notification of ignorable whitespace in element content. * * <p>Validating Parsers must use this method to report each chunk * of ignorable whitespace (see the W3C XML 1.0 recommendation, * section 2.10): non-validating parsers may also use this method * if they are capable of parsing and using content models.</p> * * <p>SAX parsers may return all contiguous whitespace in a single * chunk, or they may split it into several chunks; however, all of * the characters in any single event must come from the same * external entity, so that the Locator provides useful * information.</p> * * <p>The application must not attempt to read from the array * outside of the specified range.</p> * * @param ch The characters from the XML document. * @param start The start position in the array. * @param length The number of characters to read from the array. * @throws org.xml.sax.SAXException Any SAX exception, possibly * wrapping another exception. * @see #characters * * @throws org.xml.sax.SAXException */ public void ignorableWhitespace(char ch[], int start, int length) throws org.xml.sax.SAXException { try { writeNormalizedChars(ch, start, length, false); } catch(IOException ioe) { throw new SAXException(ioe); } flushWriter(); } /** * Receive notification of a processing instruction. * * <p>The Parser will invoke this method once for each processing * instruction found: note that processing instructions may occur * before or after the main document element.</p> * * <p>A SAX parser should never report an XML declaration (XML 1.0, * section 2.8) or a text declaration (XML 1.0, section 4.3.1) * using this method.</p> * * @param target The processing instruction target. * @param data The processing instruction data, or null if * none was supplied. * @throws org.xml.sax.SAXException Any SAX exception, possibly * wrapping another exception. * * @throws org.xml.sax.SAXException */ public void processingInstruction(String target, String data) throws org.xml.sax.SAXException { // No action for the moment. } /** * Called when a Comment is to be constructed. * @param data The comment data. * @throws org.xml.sax.SAXException Any SAX exception, possibly * wrapping another exception. * * @throws org.xml.sax.SAXException */ public void comment(String data) throws org.xml.sax.SAXException { // No action for the moment. } /** * Receive notivication of a entityReference. * * @param name non-null reference to the name of the entity. * * @throws org.xml.sax.SAXException */ public void entityReference(String name) throws org.xml.sax.SAXException { // No action for the moment. } }