| /* |
| * reserved comment block |
| * DO NOT REMOVE OR ALTER! |
| */ |
| /* |
| * Copyright 2001-2004 The Apache Software Foundation. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| /* |
| * $Id: StringValueHandler.java,v 1.2.4.1 2005/09/06 11:33:25 pvedula Exp $ |
| */ |
| |
| package com.sun.org.apache.xalan.internal.xsltc.runtime; |
| |
| import org.xml.sax.SAXException; |
| |
| import com.sun.org.apache.xml.internal.serializer.EmptySerializer; |
| |
| /** |
| * @author Jacek Ambroziak |
| * @author Santiago Pericas-Geertsen |
| * @author Morten Jorgensen |
| */ |
| public final class StringValueHandler extends EmptySerializer { |
| |
| private StringBuilder _buffer = new StringBuilder(); |
| 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 StringBuilder valueOfPI = new StringBuilder(); |
| |
| 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; |
| } |
| } |