001 /*
002 * Copyright (c) 2007 Henri Sivonen
003 *
004 * Permission is hereby granted, free of charge, to any person obtaining a
005 * copy of this software and associated documentation files (the "Software"),
006 * to deal in the Software without restriction, including without limitation
007 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
008 * and/or sell copies of the Software, and to permit persons to whom the
009 * Software is furnished to do so, subject to the following conditions:
010 *
011 * The above copyright notice and this permission notice shall be included in
012 * all copies or substantial portions of the Software.
013 *
014 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
015 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
016 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
017 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
018 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
019 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
020 * DEALINGS IN THE SOFTWARE.
021 */
022
023 package nu.validator.htmlparser.tools;
024
025 import org.xml.sax.Attributes;
026 import org.xml.sax.ContentHandler;
027 import org.xml.sax.Locator;
028 import org.xml.sax.SAXException;
029
030 import org.xml.sax.helpers.AttributesImpl;
031
032 /**
033 * Quick and dirty hack to work around Xalan xmlns weirdness.
034 *
035 * @version $Id: XmlnsDropper.java 150 2007-08-16 19:21:25Z hsivonen $
036 * @author hsivonen
037 */
038 class XmlnsDropper implements ContentHandler {
039
040 private final ContentHandler delegate;
041
042 /**
043 * @param delegate
044 */
045 public XmlnsDropper(final ContentHandler delegate) {
046 this.delegate = delegate;
047 }
048
049 /**
050 * @param ch
051 * @param start
052 * @param length
053 * @throws SAXException
054 * @see org.xml.sax.ContentHandler#characters(char[], int, int)
055 */
056 public void characters(char[] ch, int start, int length) throws SAXException {
057 delegate.characters(ch, start, length);
058 }
059
060 /**
061 * @throws SAXException
062 * @see org.xml.sax.ContentHandler#endDocument()
063 */
064 public void endDocument() throws SAXException {
065 delegate.endDocument();
066 }
067
068 /**
069 * @param uri
070 * @param localName
071 * @param qName
072 * @throws SAXException
073 * @see org.xml.sax.ContentHandler#endElement(java.lang.String, java.lang.String, java.lang.String)
074 */
075 public void endElement(String uri, String localName, String qName) throws SAXException {
076 delegate.endElement(uri, localName, qName);
077 }
078
079 /**
080 * @param prefix
081 * @throws SAXException
082 * @see org.xml.sax.ContentHandler#endPrefixMapping(java.lang.String)
083 */
084 public void endPrefixMapping(String prefix) throws SAXException {
085 delegate.endPrefixMapping(prefix);
086 }
087
088 /**
089 * @param ch
090 * @param start
091 * @param length
092 * @throws SAXException
093 * @see org.xml.sax.ContentHandler#ignorableWhitespace(char[], int, int)
094 */
095 public void ignorableWhitespace(char[] ch, int start, int length) throws SAXException {
096 delegate.ignorableWhitespace(ch, start, length);
097 }
098
099 /**
100 * @param target
101 * @param data
102 * @throws SAXException
103 * @see org.xml.sax.ContentHandler#processingInstruction(java.lang.String, java.lang.String)
104 */
105 public void processingInstruction(String target, String data) throws SAXException {
106 delegate.processingInstruction(target, data);
107 }
108
109 /**
110 * @param locator
111 * @see org.xml.sax.ContentHandler#setDocumentLocator(org.xml.sax.Locator)
112 */
113 public void setDocumentLocator(Locator locator) {
114 delegate.setDocumentLocator(locator);
115 }
116
117 /**
118 * @param name
119 * @throws SAXException
120 * @see org.xml.sax.ContentHandler#skippedEntity(java.lang.String)
121 */
122 public void skippedEntity(String name) throws SAXException {
123 delegate.skippedEntity(name);
124 }
125
126 /**
127 * @throws SAXException
128 * @see org.xml.sax.ContentHandler#startDocument()
129 */
130 public void startDocument() throws SAXException {
131 delegate.startDocument();
132 }
133
134 /**
135 * @param uri
136 * @param localName
137 * @param qName
138 * @param atts
139 * @throws SAXException
140 * @see org.xml.sax.ContentHandler#startElement(java.lang.String, java.lang.String, java.lang.String, org.xml.sax.Attributes)
141 */
142 public void startElement(String uri, String localName, String qName, Attributes atts) throws SAXException {
143 AttributesImpl ai = new AttributesImpl();
144 for (int i = 0; i < atts.getLength(); i++) {
145 String u = atts.getURI(i);
146 String t = atts.getType(i);
147 String v = atts.getValue(i);
148 String n = atts.getLocalName(i);
149 String q = atts.getQName(i);
150 if (q != null) {
151 if ("xmlns".equals(q) || q.startsWith("xmlns:")) {
152 continue;
153 }
154 }
155 ai.addAttribute(u, n, q, t, v);
156 }
157 delegate.startElement(uri, localName, qName, ai);
158 }
159
160 /**
161 * @param prefix
162 * @param uri
163 * @throws SAXException
164 * @see org.xml.sax.ContentHandler#startPrefixMapping(java.lang.String, java.lang.String)
165 */
166 public void startPrefixMapping(String prefix, String uri) throws SAXException {
167 delegate.startPrefixMapping(prefix, uri);
168 }
169
170 }