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jlechner |
/* StreamSerializer.java --
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Copyright (C) 2004 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.xml.transform;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.io.UnsupportedEncodingException;
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import java.nio.ByteBuffer;
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import java.nio.CharBuffer;
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import java.nio.charset.Charset;
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import java.nio.charset.CharsetEncoder;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Map;
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import javax.xml.XMLConstants;
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import org.w3c.dom.Attr;
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import org.w3c.dom.Document;
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import org.w3c.dom.DocumentType;
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import org.w3c.dom.NamedNodeMap;
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import org.w3c.dom.Node;
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/**
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* Serializes a DOM node to an output stream.
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*
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* @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
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*/
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public class StreamSerializer
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{
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static final int SPACE = 0x20;
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static final int BANG = 0x21; // !
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static final int APOS = 0x27; // '
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static final int SLASH = 0x2f; // /
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static final int BRA = 0x3c; // <
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static final int KET = 0x3e; // >
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static final int EQ = 0x3d; // =
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/**
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* HTML 4.01 boolean attributes
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*/
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static final Map HTML_BOOLEAN_ATTRIBUTES = new HashMap();
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static
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{
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HashSet set;
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set = new HashSet();
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set.add("nohref");
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HTML_BOOLEAN_ATTRIBUTES.put("area", set);
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set = new HashSet();
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set.add("ismap");
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HTML_BOOLEAN_ATTRIBUTES.put("img", set);
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set = new HashSet();
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set.add("declare");
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HTML_BOOLEAN_ATTRIBUTES.put("object", set);
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set = new HashSet();
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set.add("noshade");
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HTML_BOOLEAN_ATTRIBUTES.put("hr", set);
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set = new HashSet();
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set.add("compact");
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HTML_BOOLEAN_ATTRIBUTES.put("dl", set);
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HTML_BOOLEAN_ATTRIBUTES.put("ol", set);
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HTML_BOOLEAN_ATTRIBUTES.put("ul", set);
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HTML_BOOLEAN_ATTRIBUTES.put("dir", set);
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HTML_BOOLEAN_ATTRIBUTES.put("menu", set);
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set = new HashSet();
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set.add("checked");
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set.add("disabled");
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set.add("readonly");
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set.add("ismap");
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HTML_BOOLEAN_ATTRIBUTES.put("input", set);
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set = new HashSet();
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set.add("multiple");
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set.add("disabled");
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HTML_BOOLEAN_ATTRIBUTES.put("select", set);
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set = new HashSet();
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set.add("disabled");
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HTML_BOOLEAN_ATTRIBUTES.put("optgroup", set);
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set = new HashSet();
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set.add("selected");
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set.add("disabled");
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HTML_BOOLEAN_ATTRIBUTES.put("option", set);
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set = new HashSet();
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set.add("disabled");
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set.add("readonly");
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HTML_BOOLEAN_ATTRIBUTES.put("textarea", set);
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set = new HashSet();
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set.add("disabled");
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HTML_BOOLEAN_ATTRIBUTES.put("button", set);
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set = new HashSet();
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set.add("nowrap");
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HTML_BOOLEAN_ATTRIBUTES.put("th", set);
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HTML_BOOLEAN_ATTRIBUTES.put("td", set);
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set = new HashSet();
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set.add("noresize");
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HTML_BOOLEAN_ATTRIBUTES.put("frame", set);
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set = new HashSet();
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set.add("defer");
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HTML_BOOLEAN_ATTRIBUTES.put("script", set);
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}
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protected final String encoding;
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final Charset charset;
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final CharsetEncoder encoder;
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final int mode;
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final Map namespaces;
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protected String eol;
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Collection cdataSectionElements = Collections.EMPTY_SET;
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protected boolean discardDefaultContent;
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protected boolean xmlDeclaration = true;
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public StreamSerializer()
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{
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this(Stylesheet.OUTPUT_XML, null, null);
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}
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public StreamSerializer(String encoding)
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{
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this(Stylesheet.OUTPUT_XML, encoding, null);
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}
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public StreamSerializer(int mode, String encoding, String eol)
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{
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this.mode = mode;
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if (encoding == null)
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{
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encoding = "UTF-8";
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}
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this.encoding = encoding.intern();
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charset = Charset.forName(this.encoding);
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encoder = charset.newEncoder();
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this.eol = (eol != null) ? eol : System.getProperty("line.separator");
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namespaces = new HashMap();
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}
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void setCdataSectionElements(Collection c)
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{
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cdataSectionElements = c;
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}
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public void serialize(final Node node, final OutputStream out)
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throws IOException
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{
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serialize(node, out, false);
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}
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void serialize(Node node, final OutputStream out,
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boolean convertToCdata)
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throws IOException
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{
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while (node != null)
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{
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Node next = node.getNextSibling();
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doSerialize(node, out, convertToCdata);
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node = next;
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}
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}
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private void doSerialize(final Node node, final OutputStream out,
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boolean convertToCdata)
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throws IOException
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{
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if (out == null)
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{
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throw new NullPointerException("no output stream");
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}
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String value, prefix;
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Node children;
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String uri = node.getNamespaceURI();
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boolean defined = false;
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short nt = node.getNodeType();
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if (convertToCdata && nt == Node.TEXT_NODE)
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{
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nt = Node.CDATA_SECTION_NODE;
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}
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switch (nt)
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{
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case Node.ATTRIBUTE_NODE:
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prefix = node.getPrefix();
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if (XMLConstants.XMLNS_ATTRIBUTE_NS_URI.equals(uri) ||
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XMLConstants.XMLNS_ATTRIBUTE.equals(prefix) ||
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(prefix != null && prefix.startsWith("xmlns:")))
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{
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String nsuri = node.getNodeValue();
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if (isDefined(nsuri))
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{
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break;
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}
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String name = node.getLocalName();
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if (name == null)
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{
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name = node.getNodeName();
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}
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define(nsuri, name);
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}
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else if (uri != null && !isDefined(uri))
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{
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prefix = define(uri, prefix);
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String nsname = (prefix == null) ? "xmlns" : "xmlns:" + prefix;
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out.write(SPACE);
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out.write(encodeText(nsname));
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out.write(EQ);
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String nsvalue = "'" + encode(uri, true, true) + "'";
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out.write(nsvalue.getBytes(encoding));
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defined = true;
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}
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out.write(SPACE);
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String a_nodeName = node.getNodeName();
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out.write(encodeText(a_nodeName));
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String a_nodeValue = node.getNodeValue();
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if (mode == Stylesheet.OUTPUT_HTML &&
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a_nodeName.equals(a_nodeValue) &&
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isHTMLBoolean((Attr) node, a_nodeName))
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{
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break;
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}
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out.write(EQ);
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value = "'" + encode(a_nodeValue, true, true) + "'";
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out.write(encodeText(value));
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break;
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case Node.ELEMENT_NODE:
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value = node.getNodeName();
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out.write(BRA);
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out.write(encodeText(value));
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| 276 |
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if (uri != null && !isDefined(uri))
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| 277 |
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{
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| 278 |
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prefix = define(uri, node.getPrefix());
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| 279 |
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String nsname = (prefix == null) ? "xmlns" : "xmlns:" + prefix;
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| 280 |
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out.write(SPACE);
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| 281 |
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out.write(encodeText(nsname));
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| 282 |
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out.write(EQ);
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| 283 |
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String nsvalue = "'" + encode(uri, true, true) + "'";
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| 284 |
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out.write(encodeText(nsvalue));
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| 285 |
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defined = true;
|
| 286 |
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}
|
| 287 |
|
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NamedNodeMap attrs = node.getAttributes();
|
| 288 |
|
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if (attrs != null)
|
| 289 |
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{
|
| 290 |
|
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int len = attrs.getLength();
|
| 291 |
|
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for (int i = 0; i < len; i++)
|
| 292 |
|
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{
|
| 293 |
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Attr attr = (Attr) attrs.item(i);
|
| 294 |
|
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if (discardDefaultContent && !attr.getSpecified())
|
| 295 |
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{
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| 296 |
|
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// NOOP
|
| 297 |
|
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}
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| 298 |
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else
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| 299 |
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{
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| 300 |
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serialize(attr, out, false);
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| 301 |
|
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}
|
| 302 |
|
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}
|
| 303 |
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}
|
| 304 |
|
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convertToCdata = cdataSectionElements.contains(value);
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| 305 |
|
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children = node.getFirstChild();
|
| 306 |
|
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if (children == null)
|
| 307 |
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{
|
| 308 |
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out.write(SLASH);
|
| 309 |
|
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out.write(KET);
|
| 310 |
|
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}
|
| 311 |
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else
|
| 312 |
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{
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| 313 |
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out.write(KET);
|
| 314 |
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serialize(children, out, convertToCdata);
|
| 315 |
|
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out.write(BRA);
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| 316 |
|
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out.write(SLASH);
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| 317 |
|
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out.write(encodeText(value));
|
| 318 |
|
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out.write(KET);
|
| 319 |
|
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}
|
| 320 |
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break;
|
| 321 |
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case Node.TEXT_NODE:
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| 322 |
|
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value = node.getNodeValue();
|
| 323 |
|
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if (!"yes".equals(node.getUserData("disable-output-escaping")))
|
| 324 |
|
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{
|
| 325 |
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value = encode(value, false, false);
|
| 326 |
|
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}
|
| 327 |
|
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out.write(encodeText(value));
|
| 328 |
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break;
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| 329 |
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|
case Node.CDATA_SECTION_NODE:
|
| 330 |
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value = "<![CDATA[" + node.getNodeValue() + "]]>";
|
| 331 |
|
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out.write(encodeText(value));
|
| 332 |
|
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break;
|
| 333 |
|
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case Node.COMMENT_NODE:
|
| 334 |
|
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value = "<!--" + node.getNodeValue() + "-->";
|
| 335 |
|
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out.write(encodeText(value));
|
| 336 |
|
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Node cp = node.getParentNode();
|
| 337 |
|
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if (cp != null && cp.getNodeType() == Node.DOCUMENT_NODE)
|
| 338 |
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{
|
| 339 |
|
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out.write(encodeText(eol));
|
| 340 |
|
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}
|
| 341 |
|
|
break;
|
| 342 |
|
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case Node.DOCUMENT_NODE:
|
| 343 |
|
|
case Node.DOCUMENT_FRAGMENT_NODE:
|
| 344 |
|
|
if (mode == Stylesheet.OUTPUT_XML)
|
| 345 |
|
|
{
|
| 346 |
|
|
if ("UTF-16".equalsIgnoreCase(encoding))
|
| 347 |
|
|
{
|
| 348 |
|
|
out.write(0xfe);
|
| 349 |
|
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out.write(0xff);
|
| 350 |
|
|
}
|
| 351 |
|
|
if (!"yes".equals(node.getUserData("omit-xml-declaration")) &&
|
| 352 |
|
|
xmlDeclaration)
|
| 353 |
|
|
{
|
| 354 |
|
|
Document doc = (node instanceof Document) ?
|
| 355 |
|
|
(Document) node : null;
|
| 356 |
|
|
String version = (doc != null) ? doc.getXmlVersion() : null;
|
| 357 |
|
|
if (version == null)
|
| 358 |
|
|
{
|
| 359 |
|
|
version = (String) node.getUserData("version");
|
| 360 |
|
|
}
|
| 361 |
|
|
if (version == null)
|
| 362 |
|
|
{
|
| 363 |
|
|
version = "1.0";
|
| 364 |
|
|
}
|
| 365 |
|
|
out.write(BRA);
|
| 366 |
|
|
out.write(0x3f);
|
| 367 |
|
|
out.write("xml version='".getBytes("US-ASCII"));
|
| 368 |
|
|
out.write(version.getBytes("US-ASCII"));
|
| 369 |
|
|
out.write(APOS);
|
| 370 |
|
|
if (!("UTF-8".equalsIgnoreCase(encoding)))
|
| 371 |
|
|
{
|
| 372 |
|
|
out.write(" encoding='".getBytes("US-ASCII"));
|
| 373 |
|
|
out.write(encoding.getBytes("US-ASCII"));
|
| 374 |
|
|
out.write(APOS);
|
| 375 |
|
|
}
|
| 376 |
|
|
if ((doc != null && doc.getXmlStandalone()) ||
|
| 377 |
|
|
"yes".equals(node.getUserData("standalone")))
|
| 378 |
|
|
{
|
| 379 |
|
|
out.write(" standalone='yes'".getBytes("US-ASCII"));
|
| 380 |
|
|
}
|
| 381 |
|
|
out.write(0x3f);
|
| 382 |
|
|
out.write(KET);
|
| 383 |
|
|
out.write(encodeText(eol));
|
| 384 |
|
|
}
|
| 385 |
|
|
// TODO warn if not outputting the declaration would be a
|
| 386 |
|
|
// problem
|
| 387 |
|
|
}
|
| 388 |
|
|
else if (mode == Stylesheet.OUTPUT_HTML)
|
| 389 |
|
|
{
|
| 390 |
|
|
// Ensure that encoding is accessible
|
| 391 |
|
|
String mediaType = (String) node.getUserData("media-type");
|
| 392 |
|
|
if (mediaType == null)
|
| 393 |
|
|
{
|
| 394 |
|
|
mediaType = "text/html";
|
| 395 |
|
|
}
|
| 396 |
|
|
String contentType = mediaType + "; charset=" +
|
| 397 |
|
|
((encoding.indexOf(' ') != -1) ?
|
| 398 |
|
|
"\"" + encoding + "\"" :
|
| 399 |
|
|
encoding);
|
| 400 |
|
|
Document doc = (node instanceof Document) ? (Document) node :
|
| 401 |
|
|
node.getOwnerDocument();
|
| 402 |
|
|
Node html = null;
|
| 403 |
|
|
for (Node ctx = node.getFirstChild(); ctx != null;
|
| 404 |
|
|
ctx = ctx.getNextSibling())
|
| 405 |
|
|
{
|
| 406 |
|
|
if (ctx.getNodeType() == Node.ELEMENT_NODE)
|
| 407 |
|
|
{
|
| 408 |
|
|
html = ctx;
|
| 409 |
|
|
break;
|
| 410 |
|
|
}
|
| 411 |
|
|
}
|
| 412 |
|
|
if (html == null)
|
| 413 |
|
|
{
|
| 414 |
|
|
html = doc.createElement("html");
|
| 415 |
|
|
node.appendChild(html);
|
| 416 |
|
|
}
|
| 417 |
|
|
Node head = null;
|
| 418 |
|
|
for (Node ctx = html.getFirstChild(); ctx != null;
|
| 419 |
|
|
ctx = ctx.getNextSibling())
|
| 420 |
|
|
{
|
| 421 |
|
|
if (ctx.getNodeType() == Node.ELEMENT_NODE)
|
| 422 |
|
|
{
|
| 423 |
|
|
String name = ctx.getLocalName();
|
| 424 |
|
|
if (name == null)
|
| 425 |
|
|
{
|
| 426 |
|
|
name = ctx.getNodeName();
|
| 427 |
|
|
}
|
| 428 |
|
|
if ("head".equalsIgnoreCase(name))
|
| 429 |
|
|
{
|
| 430 |
|
|
head = ctx;
|
| 431 |
|
|
break;
|
| 432 |
|
|
}
|
| 433 |
|
|
}
|
| 434 |
|
|
}
|
| 435 |
|
|
if (head == null)
|
| 436 |
|
|
{
|
| 437 |
|
|
head = doc.createElement("head");
|
| 438 |
|
|
Node c1 = null;
|
| 439 |
|
|
for (Node ctx = html.getFirstChild(); ctx != null;
|
| 440 |
|
|
ctx = ctx.getNextSibling())
|
| 441 |
|
|
{
|
| 442 |
|
|
if (ctx.getNodeType() == Node.ELEMENT_NODE)
|
| 443 |
|
|
{
|
| 444 |
|
|
c1 = ctx;
|
| 445 |
|
|
break;
|
| 446 |
|
|
}
|
| 447 |
|
|
}
|
| 448 |
|
|
if (c1 != null)
|
| 449 |
|
|
{
|
| 450 |
|
|
html.insertBefore(head, c1);
|
| 451 |
|
|
}
|
| 452 |
|
|
else
|
| 453 |
|
|
{
|
| 454 |
|
|
html.appendChild(head);
|
| 455 |
|
|
}
|
| 456 |
|
|
}
|
| 457 |
|
|
Node meta = null;
|
| 458 |
|
|
Node metaContent = null;
|
| 459 |
|
|
for (Node ctx = head.getFirstChild(); ctx != null;
|
| 460 |
|
|
ctx = ctx.getNextSibling())
|
| 461 |
|
|
{
|
| 462 |
|
|
if (ctx.getNodeType() == Node.ELEMENT_NODE)
|
| 463 |
|
|
{
|
| 464 |
|
|
String name = ctx.getLocalName();
|
| 465 |
|
|
if (name == null)
|
| 466 |
|
|
{
|
| 467 |
|
|
name = ctx.getNodeName();
|
| 468 |
|
|
}
|
| 469 |
|
|
if ("meta".equalsIgnoreCase(name))
|
| 470 |
|
|
{
|
| 471 |
|
|
NamedNodeMap metaAttrs = ctx.getAttributes();
|
| 472 |
|
|
int len = metaAttrs.getLength();
|
| 473 |
|
|
String httpEquiv = null;
|
| 474 |
|
|
Node content = null;
|
| 475 |
|
|
for (int i = 0; i < len; i++)
|
| 476 |
|
|
{
|
| 477 |
|
|
Node attr = metaAttrs.item(i);
|
| 478 |
|
|
String attrName = attr.getNodeName();
|
| 479 |
|
|
if ("http-equiv".equalsIgnoreCase(attrName))
|
| 480 |
|
|
{
|
| 481 |
|
|
httpEquiv = attr.getNodeValue();
|
| 482 |
|
|
}
|
| 483 |
|
|
else if ("content".equalsIgnoreCase(attrName))
|
| 484 |
|
|
{
|
| 485 |
|
|
content = attr;
|
| 486 |
|
|
}
|
| 487 |
|
|
}
|
| 488 |
|
|
if ("Content-Type".equalsIgnoreCase(httpEquiv))
|
| 489 |
|
|
{
|
| 490 |
|
|
meta = ctx;
|
| 491 |
|
|
metaContent = content;
|
| 492 |
|
|
break;
|
| 493 |
|
|
}
|
| 494 |
|
|
}
|
| 495 |
|
|
}
|
| 496 |
|
|
}
|
| 497 |
|
|
if (meta == null)
|
| 498 |
|
|
{
|
| 499 |
|
|
meta = doc.createElement("meta");
|
| 500 |
|
|
// Insert first
|
| 501 |
|
|
Node first = head.getFirstChild();
|
| 502 |
|
|
if (first == null)
|
| 503 |
|
|
{
|
| 504 |
|
|
head.appendChild(meta);
|
| 505 |
|
|
}
|
| 506 |
|
|
else
|
| 507 |
|
|
{
|
| 508 |
|
|
head.insertBefore(meta, first);
|
| 509 |
|
|
}
|
| 510 |
|
|
Node metaHttpEquiv = doc.createAttribute("http-equiv");
|
| 511 |
|
|
meta.getAttributes().setNamedItem(metaHttpEquiv);
|
| 512 |
|
|
metaHttpEquiv.setNodeValue("Content-Type");
|
| 513 |
|
|
}
|
| 514 |
|
|
if (metaContent == null)
|
| 515 |
|
|
{
|
| 516 |
|
|
metaContent = doc.createAttribute("content");
|
| 517 |
|
|
meta.getAttributes().setNamedItem(metaContent);
|
| 518 |
|
|
}
|
| 519 |
|
|
metaContent.setNodeValue(contentType);
|
| 520 |
|
|
// phew
|
| 521 |
|
|
}
|
| 522 |
|
|
children = node.getFirstChild();
|
| 523 |
|
|
if (children != null)
|
| 524 |
|
|
{
|
| 525 |
|
|
serialize(children, out, convertToCdata);
|
| 526 |
|
|
}
|
| 527 |
|
|
break;
|
| 528 |
|
|
case Node.DOCUMENT_TYPE_NODE:
|
| 529 |
|
|
DocumentType doctype = (DocumentType) node;
|
| 530 |
|
|
out.write(BRA);
|
| 531 |
|
|
out.write(BANG);
|
| 532 |
|
|
out.write(encodeText("DOCTYPE "));
|
| 533 |
|
|
value = doctype.getNodeName();
|
| 534 |
|
|
out.write(encodeText(value));
|
| 535 |
|
|
String publicId = doctype.getPublicId();
|
| 536 |
|
|
if (publicId != null)
|
| 537 |
|
|
{
|
| 538 |
|
|
out.write(encodeText(" PUBLIC "));
|
| 539 |
|
|
out.write(APOS);
|
| 540 |
|
|
out.write(encodeText(publicId));
|
| 541 |
|
|
out.write(APOS);
|
| 542 |
|
|
}
|
| 543 |
|
|
String systemId = doctype.getSystemId();
|
| 544 |
|
|
if (systemId != null)
|
| 545 |
|
|
{
|
| 546 |
|
|
out.write(encodeText(" SYSTEM "));
|
| 547 |
|
|
out.write(APOS);
|
| 548 |
|
|
out.write(encodeText(systemId));
|
| 549 |
|
|
out.write(APOS);
|
| 550 |
|
|
}
|
| 551 |
|
|
String internalSubset = doctype.getInternalSubset();
|
| 552 |
|
|
if (internalSubset != null)
|
| 553 |
|
|
{
|
| 554 |
|
|
out.write(encodeText(internalSubset));
|
| 555 |
|
|
}
|
| 556 |
|
|
out.write(KET);
|
| 557 |
|
|
out.write(eol.getBytes(encoding));
|
| 558 |
|
|
break;
|
| 559 |
|
|
case Node.ENTITY_REFERENCE_NODE:
|
| 560 |
|
|
value = "&" + node.getNodeValue() + ";";
|
| 561 |
|
|
out.write(encodeText(value));
|
| 562 |
|
|
break;
|
| 563 |
|
|
case Node.PROCESSING_INSTRUCTION_NODE:
|
| 564 |
|
|
value = "<?" + node.getNodeName() + " " + node.getNodeValue() + "?>";
|
| 565 |
|
|
out.write(encodeText(value));
|
| 566 |
|
|
Node pp = node.getParentNode();
|
| 567 |
|
|
if (pp != null && pp.getNodeType() == Node.DOCUMENT_NODE)
|
| 568 |
|
|
{
|
| 569 |
|
|
out.write(encodeText(eol));
|
| 570 |
|
|
}
|
| 571 |
|
|
break;
|
| 572 |
|
|
}
|
| 573 |
|
|
if (defined)
|
| 574 |
|
|
{
|
| 575 |
|
|
undefine(uri);
|
| 576 |
|
|
}
|
| 577 |
|
|
}
|
| 578 |
|
|
|
| 579 |
|
|
boolean isDefined(String uri)
|
| 580 |
|
|
{
|
| 581 |
|
|
return XMLConstants.XML_NS_URI.equals(uri) ||
|
| 582 |
|
|
XMLConstants.XMLNS_ATTRIBUTE_NS_URI.equals(uri) ||
|
| 583 |
|
|
namespaces.containsKey(uri);
|
| 584 |
|
|
}
|
| 585 |
|
|
|
| 586 |
|
|
String define(String uri, String prefix)
|
| 587 |
|
|
{
|
| 588 |
|
|
while (namespaces.containsValue(prefix))
|
| 589 |
|
|
{
|
| 590 |
|
|
// Fabricate new prefix
|
| 591 |
|
|
prefix = prefix + "_";
|
| 592 |
|
|
}
|
| 593 |
|
|
namespaces.put(uri, prefix);
|
| 594 |
|
|
return prefix;
|
| 595 |
|
|
}
|
| 596 |
|
|
|
| 597 |
|
|
void undefine(String uri)
|
| 598 |
|
|
{
|
| 599 |
|
|
namespaces.remove(uri);
|
| 600 |
|
|
}
|
| 601 |
|
|
|
| 602 |
|
|
final byte[] encodeText(String text)
|
| 603 |
|
|
throws IOException
|
| 604 |
|
|
{
|
| 605 |
|
|
encoder.reset();
|
| 606 |
|
|
if (!encoder.canEncode(text))
|
| 607 |
|
|
{
|
| 608 |
|
|
// Check each character
|
| 609 |
|
|
StringBuffer buf = new StringBuffer();
|
| 610 |
|
|
int len = text.length();
|
| 611 |
|
|
for (int i = 0; i < len; i++)
|
| 612 |
|
|
{
|
| 613 |
|
|
char c = text.charAt(i);
|
| 614 |
|
|
if (encoder.canEncode(c))
|
| 615 |
|
|
{
|
| 616 |
|
|
buf.append(c);
|
| 617 |
|
|
}
|
| 618 |
|
|
else
|
| 619 |
|
|
{
|
| 620 |
|
|
// Replace with character entity reference
|
| 621 |
|
|
String hex = Integer.toHexString((int) c);
|
| 622 |
|
|
buf.append("&#x");
|
| 623 |
|
|
buf.append(hex);
|
| 624 |
|
|
buf.append(';');
|
| 625 |
|
|
}
|
| 626 |
|
|
}
|
| 627 |
|
|
text = buf.toString();
|
| 628 |
|
|
}
|
| 629 |
|
|
ByteBuffer encoded = encoder.encode(CharBuffer.wrap(text));
|
| 630 |
|
|
int len = encoded.limit() - encoded.position();
|
| 631 |
|
|
if (encoded.hasArray())
|
| 632 |
|
|
{
|
| 633 |
|
|
byte[] ret = encoded.array();
|
| 634 |
|
|
if (ret.length > len)
|
| 635 |
|
|
{
|
| 636 |
|
|
// Why?
|
| 637 |
|
|
byte[] ret2 = new byte[len];
|
| 638 |
|
|
System.arraycopy(ret, 0, ret2, 0, len);
|
| 639 |
|
|
ret = ret2;
|
| 640 |
|
|
}
|
| 641 |
|
|
return ret;
|
| 642 |
|
|
}
|
| 643 |
|
|
encoded.flip();
|
| 644 |
|
|
byte[] ret = new byte[len];
|
| 645 |
|
|
encoded.get(ret, 0, len);
|
| 646 |
|
|
return ret;
|
| 647 |
|
|
}
|
| 648 |
|
|
|
| 649 |
|
|
String encode(String text, boolean encodeCtl, boolean inAttr)
|
| 650 |
|
|
{
|
| 651 |
|
|
int len = text.length();
|
| 652 |
|
|
StringBuffer buf = null;
|
| 653 |
|
|
for (int i = 0; i < len; i++)
|
| 654 |
|
|
{
|
| 655 |
|
|
char c = text.charAt(i);
|
| 656 |
|
|
if (c == '<')
|
| 657 |
|
|
{
|
| 658 |
|
|
if (buf == null)
|
| 659 |
|
|
{
|
| 660 |
|
|
buf = new StringBuffer(text.substring(0, i));
|
| 661 |
|
|
}
|
| 662 |
|
|
buf.append("<");
|
| 663 |
|
|
}
|
| 664 |
|
|
else if (c == '>')
|
| 665 |
|
|
{
|
| 666 |
|
|
if (buf == null)
|
| 667 |
|
|
{
|
| 668 |
|
|
buf = new StringBuffer(text.substring(0, i));
|
| 669 |
|
|
}
|
| 670 |
|
|
buf.append(">");
|
| 671 |
|
|
}
|
| 672 |
|
|
else if (c == '&')
|
| 673 |
|
|
{
|
| 674 |
|
|
if (mode == Stylesheet.OUTPUT_HTML && (i + 1) < len &&
|
| 675 |
|
|
text.charAt(i + 1) == '{')
|
| 676 |
|
|
{
|
| 677 |
|
|
if (buf != null)
|
| 678 |
|
|
{
|
| 679 |
|
|
buf.append(c);
|
| 680 |
|
|
}
|
| 681 |
|
|
}
|
| 682 |
|
|
else
|
| 683 |
|
|
{
|
| 684 |
|
|
if (buf == null)
|
| 685 |
|
|
{
|
| 686 |
|
|
buf = new StringBuffer(text.substring(0, i));
|
| 687 |
|
|
}
|
| 688 |
|
|
buf.append("&");
|
| 689 |
|
|
}
|
| 690 |
|
|
}
|
| 691 |
|
|
else if (c == '\'' && inAttr)
|
| 692 |
|
|
{
|
| 693 |
|
|
if (buf == null)
|
| 694 |
|
|
{
|
| 695 |
|
|
buf = new StringBuffer(text.substring(0, i));
|
| 696 |
|
|
}
|
| 697 |
|
|
if (mode == Stylesheet.OUTPUT_HTML)
|
| 698 |
|
|
// HTML does not define ', use character entity ref
|
| 699 |
|
|
buf.append("'");
|
| 700 |
|
|
else
|
| 701 |
|
|
buf.append("'");
|
| 702 |
|
|
}
|
| 703 |
|
|
else if (c == '"' && inAttr)
|
| 704 |
|
|
{
|
| 705 |
|
|
if (buf == null)
|
| 706 |
|
|
{
|
| 707 |
|
|
buf = new StringBuffer(text.substring(0, i));
|
| 708 |
|
|
}
|
| 709 |
|
|
buf.append(""");
|
| 710 |
|
|
}
|
| 711 |
|
|
else if (encodeCtl)
|
| 712 |
|
|
{
|
| 713 |
|
|
if (c < 0x20)
|
| 714 |
|
|
{
|
| 715 |
|
|
if (buf == null)
|
| 716 |
|
|
{
|
| 717 |
|
|
buf = new StringBuffer(text.substring(0, i));
|
| 718 |
|
|
}
|
| 719 |
|
|
buf.append('&');
|
| 720 |
|
|
buf.append('#');
|
| 721 |
|
|
buf.append((int) c);
|
| 722 |
|
|
buf.append(';');
|
| 723 |
|
|
}
|
| 724 |
|
|
else if (buf != null)
|
| 725 |
|
|
{
|
| 726 |
|
|
buf.append(c);
|
| 727 |
|
|
}
|
| 728 |
|
|
}
|
| 729 |
|
|
else if (buf != null)
|
| 730 |
|
|
{
|
| 731 |
|
|
buf.append(c);
|
| 732 |
|
|
}
|
| 733 |
|
|
}
|
| 734 |
|
|
return (buf == null) ? text : buf.toString();
|
| 735 |
|
|
}
|
| 736 |
|
|
|
| 737 |
|
|
String toString(Node node)
|
| 738 |
|
|
{
|
| 739 |
|
|
ByteArrayOutputStream out = new ByteArrayOutputStream();
|
| 740 |
|
|
try
|
| 741 |
|
|
{
|
| 742 |
|
|
serialize(node, out);
|
| 743 |
|
|
return new String(out.toByteArray(), encoding);
|
| 744 |
|
|
}
|
| 745 |
|
|
catch (IOException e)
|
| 746 |
|
|
{
|
| 747 |
|
|
throw new RuntimeException(e.getMessage());
|
| 748 |
|
|
}
|
| 749 |
|
|
}
|
| 750 |
|
|
|
| 751 |
|
|
boolean isHTMLBoolean(Attr attr, String attrName)
|
| 752 |
|
|
{
|
| 753 |
|
|
attrName = attrName.toLowerCase();
|
| 754 |
|
|
Node element = attr.getOwnerElement();
|
| 755 |
|
|
String elementName = element.getLocalName();
|
| 756 |
|
|
if (elementName == null)
|
| 757 |
|
|
{
|
| 758 |
|
|
elementName = element.getNodeName();
|
| 759 |
|
|
}
|
| 760 |
|
|
elementName = elementName.toLowerCase();
|
| 761 |
|
|
Collection attributes =
|
| 762 |
|
|
(Collection) HTML_BOOLEAN_ATTRIBUTES.get(elementName);
|
| 763 |
|
|
return (attributes != null && attributes.contains(attrName));
|
| 764 |
|
|
}
|
| 765 |
|
|
|
| 766 |
|
|
}
|
