| /* |
| * @(#)$Id$ |
| * |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 2001-2003 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) 2001, Sun |
| * Microsystems., http://www.sun.com. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| * @author Jacek Ambroziak |
| * @author Santiago Pericas-Geertsen |
| * @author Morten Jorgensen |
| * |
| */ |
| |
| package org.apache.xalan.xsltc.runtime; |
| |
| import org.xml.sax.SAXException; |
| |
| import org.apache.xml.serializer.EmptySerializer; |
| |
| public final class StringValueHandler extends EmptySerializer { |
| |
| private StringBuffer _buffer = new StringBuffer(); |
| private String _str = null; |
| private static final String EMPTY_STR = ""; |
| private boolean m_escaping = false; |
| private int _nestedLevel = 0; |
| |
| public void characters(char[] ch, int off, int len) |
| throws SAXException |
| { |
| if (_nestedLevel > 0) |
| return; |
| |
| if (_str != null) { |
| _buffer.append(_str); |
| _str = null; |
| } |
| _buffer.append(ch, off, len); |
| } |
| |
| public String getValue() { |
| if (_buffer.length() != 0) { |
| String result = _buffer.toString(); |
| _buffer.setLength(0); |
| return result; |
| } |
| else { |
| String result = _str; |
| _str = null; |
| return (result != null) ? result : EMPTY_STR; |
| } |
| } |
| |
| public void characters(String characters) throws SAXException { |
| if (_nestedLevel > 0) |
| return; |
| |
| if (_str == null && _buffer.length() == 0) { |
| _str = characters; |
| } |
| else { |
| if (_str != null) { |
| _buffer.append(_str); |
| _str = null; |
| } |
| |
| _buffer.append(characters); |
| } |
| } |
| |
| public void startElement(String qname) throws SAXException { |
| _nestedLevel++; |
| } |
| |
| public void endElement(String qname) throws SAXException { |
| _nestedLevel--; |
| } |
| |
| // Override the setEscaping method just to indicate that this class is |
| // aware that that method might be called. |
| public boolean setEscaping(boolean bool) { |
| boolean oldEscaping = m_escaping; |
| m_escaping = bool; |
| |
| return bool; |
| } |
| |
| /** |
| * The value of a PI must not contain the substring "?>". Should |
| * that substring be present, replace it by "? >". |
| */ |
| public String getValueOfPI() { |
| final String value = getValue(); |
| |
| if (value.indexOf("?>") > 0) { |
| final int n = value.length(); |
| final StringBuffer valueOfPI = new StringBuffer(); |
| |
| for (int i = 0; i < n;) { |
| final char ch = value.charAt(i++); |
| if (ch == '?' && value.charAt(i) == '>') { |
| valueOfPI.append("? >"); i++; |
| } |
| else { |
| valueOfPI.append(ch); |
| } |
| } |
| return valueOfPI.toString(); |
| } |
| return value; |
| } |
| } |