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/*
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* reserved comment block
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* DO NOT REMOVE OR ALTER!
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*/
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/*
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* Copyright 1999-2002,2004,2005 The Apache Software Foundation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// Sep 14, 2000:
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// Fixed problem with namespace handling. Contributed by
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// David Blondeau <blondeau@intalio.com>
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// Sep 14, 2000:
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// Fixed serializer to report IO exception directly, instead at
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// the end of document processing.
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// Reported by Patrick Higgins <phiggins@transzap.com>
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// Aug 21, 2000:
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// Fixed bug in startDocument not calling prepare.
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// Reported by Mikael Staldal <d96-mst-ingen-reklam@d.kth.se>
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// Aug 21, 2000:
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// Added ability to omit DOCTYPE declaration.
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package com.sun.org.apache.xml.internal.serialize;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.io.Writer;
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import com.sun.org.apache.xerces.internal.dom.DOMMessageFormatter;
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import com.sun.org.apache.xerces.internal.impl.Constants;
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import com.sun.org.apache.xerces.internal.util.NamespaceSupport;
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import com.sun.org.apache.xerces.internal.util.SymbolTable;
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import com.sun.org.apache.xerces.internal.util.XML11Char;
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import com.sun.org.apache.xerces.internal.util.XMLChar;
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import org.xml.sax.SAXException;
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import org.w3c.dom.DOMError;
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/**
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* Implements an XML serializer supporting both DOM and SAX pretty
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* serializing. For usage instructions see {@link Serializer}.
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* <p>
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* If an output stream is used, the encoding is taken from the
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* output format (defaults to <tt>UTF-8</tt>). If a writer is
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* used, make sure the writer uses the same encoding (if applies)
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* as specified in the output format.
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* <p>
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* The serializer supports both DOM and SAX. SAX serializing is done by firing
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* SAX events and using the serializer as a document handler. DOM serializing is done
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* by calling {@link #serialize(Document)} or by using DOM Level 3
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* {@link org.w3c.dom.ls.DOMSerializer} and
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* serializing with {@link org.w3c.dom.ls.DOMSerializer#write},
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* {@link org.w3c.dom.ls.DOMSerializer#writeToString}.
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* <p>
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* If an I/O exception occurs while serializing, the serializer
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* will not throw an exception directly, but only throw it
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* at the end of serializing (either DOM or SAX's {@link
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* org.xml.sax.DocumentHandler#endDocument}.
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* <p>
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* For elements that are not specified as whitespace preserving,
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* the serializer will potentially break long text lines at space
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* boundaries, indent lines, and serialize elements on separate
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* lines. Line terminators will be regarded as spaces, and
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* spaces at beginning of line will be stripped.
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* @author <a href="mailto:arkin@intalio.com">Assaf Arkin</a>
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* @author <a href="mailto:rahul.srivastava@sun.com">Rahul Srivastava</a>
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* @author Elena Litani IBM
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* @see Serializer
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*/
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public class XML11Serializer
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extends XMLSerializer {
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//
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// constants
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//
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protected static final boolean DEBUG = false;
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//
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// data
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//
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//
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// DOM Level 3 implementation: variables intialized in DOMSerializerImpl
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//
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/** stores namespaces in scope */
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protected NamespaceSupport fNSBinder;
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/** stores all namespace bindings on the current element */
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protected NamespaceSupport fLocalNSBinder;
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/** symbol table for serialization */
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protected SymbolTable fSymbolTable;
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// is node dom level 1 node?
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protected boolean fDOML1 = false;
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// counter for new prefix names
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protected int fNamespaceCounter = 1;
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protected final static String PREFIX = "NS";
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/**
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* Controls whether namespace fixup should be performed during
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* the serialization.
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* NOTE: if this field is set to true the following
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* fields need to be initialized: fNSBinder, fLocalNSBinder, fSymbolTable,
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* XMLSymbols.EMPTY_STRING, fXmlSymbol, fXmlnsSymbol, fNamespaceCounter.
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*/
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protected boolean fNamespaces = false;
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private boolean fPreserveSpace;
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/**
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* Constructs a new serializer. The serializer cannot be used without
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* calling {@link #setOutputCharStream} or {@link #setOutputByteStream}
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* first.
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*/
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public XML11Serializer() {
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super( );
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_format.setVersion("1.1");
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}
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/**
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* Constructs a new serializer. The serializer cannot be used without
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* calling {@link #setOutputCharStream} or {@link #setOutputByteStream}
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* first.
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*/
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public XML11Serializer( OutputFormat format ) {
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super( format );
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_format.setVersion("1.1");
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}
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/**
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* Constructs a new serializer that writes to the specified writer
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* using the specified output format. If <tt>format</tt> is null,
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* will use a default output format.
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*
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* @param writer The writer to use
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* @param format The output format to use, null for the default
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*/
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public XML11Serializer( Writer writer, OutputFormat format ) {
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super( writer, format );
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_format.setVersion("1.1");
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}
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/**
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* Constructs a new serializer that writes to the specified output
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* stream using the specified output format. If <tt>format</tt>
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* is null, will use a default output format.
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*
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* @param output The output stream to use
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* @param format The output format to use, null for the default
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*/
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public XML11Serializer( OutputStream output, OutputFormat format ) {
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super( output, format != null ? format : new OutputFormat( Method.XML, null, false ) );
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_format.setVersion("1.1");
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}
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//-----------------------------------------//
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// SAX content handler serializing methods //
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//-----------------------------------------//
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public void characters( char[] chars, int start, int length )
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throws SAXException
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{
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ElementState state;
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try {
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state = content();
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// Check if text should be print as CDATA section or unescaped
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// based on elements listed in the output format (the element
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// state) or whether we are inside a CDATA section or entity.
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if ( state.inCData || state.doCData ) {
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int saveIndent;
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// Print a CDATA section. The text is not escaped, but ']]>'
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// appearing in the code must be identified and dealt with.
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// The contents of a text node is considered space preserving.
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if ( ! state.inCData ) {
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_printer.printText( "<![CDATA[" );
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state.inCData = true;
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}
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saveIndent = _printer.getNextIndent();
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_printer.setNextIndent( 0 );
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char ch;
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final int end = start + length;
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for ( int index = start; index < end; ++index ) {
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ch = chars[index];
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if ( ch == ']' && index + 2 < end &&
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chars[ index + 1 ] == ']' && chars[ index + 2 ] == '>' ) {
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_printer.printText("]]]]><![CDATA[>");
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index +=2;
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continue;
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}
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if (!XML11Char.isXML11Valid(ch)) {
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// check if it is surrogate
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if (++index < end) {
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surrogates(ch, chars[index]);
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}
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else {
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fatalError("The character '"+(char)ch+"' is an invalid XML character");
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}
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continue;
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} else {
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if ( _encodingInfo.isPrintable((char)ch) && XML11Char.isXML11ValidLiteral(ch)) {
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_printer.printText((char)ch);
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} else {
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// The character is not printable -- split CDATA section
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_printer.printText("]]>&#x");
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_printer.printText(Integer.toHexString(ch));
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_printer.printText(";<![CDATA[");
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}
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}
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}
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_printer.setNextIndent( saveIndent );
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} else {
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int saveIndent;
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if ( state.preserveSpace ) {
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// If preserving space then hold of indentation so no
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// excessive spaces are printed at line breaks, escape
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// the text content without replacing spaces and print
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// the text breaking only at line breaks.
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saveIndent = _printer.getNextIndent();
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_printer.setNextIndent( 0 );
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printText( chars, start, length, true, state.unescaped );
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_printer.setNextIndent( saveIndent );
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} else {
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printText( chars, start, length, false, state.unescaped );
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}
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}
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} catch ( IOException except ) {
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throw new SAXException( except );
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}
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}
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//
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// overwrite printing functions to make sure serializer prints out valid XML
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//
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protected void printEscaped( String source ) throws IOException {
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int length = source.length();
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for ( int i = 0 ; i < length ; ++i ) {
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int ch = source.charAt(i);
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if (!XML11Char.isXML11Valid(ch)) {
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if (++i <length) {
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surrogates(ch, source.charAt(i));
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} else {
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fatalError("The character '"+(char)ch+"' is an invalid XML character");
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}
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continue;
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}
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if (ch == '\n' || ch == '\r' || ch == '\t' || ch == 0x0085 || ch == 0x2028){
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printHex(ch);
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} else if (ch == '<') {
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_printer.printText("<");
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} else if (ch == '&') {
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_printer.printText("&");
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} else if (ch == '"') {
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_printer.printText(""");
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} else if ((ch >= ' ' && _encodingInfo.isPrintable((char) ch))) {
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_printer.printText((char) ch);
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} else {
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printHex(ch);
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}
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}
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}
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protected final void printCDATAText(String text) throws IOException {
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int length = text.length();
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char ch;
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for (int index = 0; index < length; ++index) {
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ch = text.charAt(index);
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if (ch == ']'
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&& index + 2 < length
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&& text.charAt(index + 1) == ']'
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&& text.charAt(index + 2) == '>') { // check for ']]>'
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if (fDOMErrorHandler != null){
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// REVISIT: this means that if DOM Error handler is not registered we don't report any
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// fatal errors and might serialize not wellformed document
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if ((features & DOMSerializerImpl.SPLITCDATA) == 0
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&& (features & DOMSerializerImpl.WELLFORMED) == 0) {
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// issue fatal error
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String msg =
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DOMMessageFormatter.formatMessage(
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DOMMessageFormatter.SERIALIZER_DOMAIN,
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"EndingCDATA",
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null);
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modifyDOMError(
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msg,
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DOMError.SEVERITY_FATAL_ERROR,
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null, fCurrentNode);
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boolean continueProcess =
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fDOMErrorHandler.handleError(fDOMError);
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if (!continueProcess) {
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throw new IOException();
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}
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} else {
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// issue warning
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String msg =
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DOMMessageFormatter.formatMessage(
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DOMMessageFormatter.SERIALIZER_DOMAIN,
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"SplittingCDATA",
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null);
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modifyDOMError(
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msg,
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DOMError.SEVERITY_WARNING,
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null, fCurrentNode);
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fDOMErrorHandler.handleError(fDOMError);
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}
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}
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// split CDATA section
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_printer.printText("]]]]><![CDATA[>");
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index += 2;
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continue;
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}
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if (!XML11Char.isXML11Valid(ch)) {
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// check if it is surrogate
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if (++index < length) {
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surrogates(ch, text.charAt(index));
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} else {
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fatalError(
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"The character '"
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+ (char) ch
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+ "' is an invalid XML character");
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}
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continue;
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} else {
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if (_encodingInfo.isPrintable((char) ch)
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&& XML11Char.isXML11ValidLiteral(ch)) {
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_printer.printText((char) ch);
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} else {
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// The character is not printable -- split CDATA section
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_printer.printText("]]>&#x");
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_printer.printText(Integer.toHexString(ch));
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_printer.printText(";<![CDATA[");
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}
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}
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}
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}
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// note that this "int" should, in all cases, be a char.
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// REVISIT: make it a char...
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protected final void printXMLChar( int ch ) throws IOException {
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if (ch == '\r' || ch == 0x0085 || ch == 0x2028) {
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printHex(ch);
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} else if ( ch == '<') {
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_printer.printText("<");
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} else if (ch == '&') {
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_printer.printText("&");
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} else if (ch == '>'){
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// character sequence "]]>" can't appear in content, therefore
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// we should escape '>'
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_printer.printText(">");
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} else if ( _encodingInfo.isPrintable((char)ch) && XML11Char.isXML11ValidLiteral(ch)) {
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_printer.printText((char)ch);
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} else {
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printHex(ch);
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}
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}
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protected final void surrogates(int high, int low) throws IOException{
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if (XMLChar.isHighSurrogate(high)) {
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if (!XMLChar.isLowSurrogate(low)) {
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//Invalid XML
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fatalError("The character '"+(char)low+"' is an invalid XML character");
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}
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else {
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int supplemental = XMLChar.supplemental((char)high, (char)low);
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if (!XML11Char.isXML11Valid(supplemental)) {
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//Invalid XML
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fatalError("The character '"+(char)supplemental+"' is an invalid XML character");
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}
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else {
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if (content().inCData ) {
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_printer.printText("]]>&#x");
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_printer.printText(Integer.toHexString(supplemental));
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_printer.printText(";<![CDATA[");
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}
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else {
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printHex(supplemental);
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}
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}
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}
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} else {
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fatalError("The character '"+(char)high+"' is an invalid XML character");
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}
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}
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|
424 |
protected void printText( String text, boolean preserveSpace, boolean unescaped )
|
|
425 |
throws IOException {
|
|
426 |
int index;
|
|
427 |
char ch;
|
|
428 |
int length = text.length();
|
|
429 |
if ( preserveSpace ) {
|
|
430 |
// Preserving spaces: the text must print exactly as it is,
|
|
431 |
// without breaking when spaces appear in the text and without
|
|
432 |
// consolidating spaces. If a line terminator is used, a line
|
|
433 |
// break will occur.
|
|
434 |
for ( index = 0 ; index < length ; ++index ) {
|
|
435 |
ch = text.charAt( index );
|
|
436 |
if (!XML11Char.isXML11Valid(ch)) {
|
|
437 |
// check if it is surrogate
|
|
438 |
if (++index <length) {
|
|
439 |
surrogates(ch, text.charAt(index));
|
|
440 |
} else {
|
|
441 |
fatalError("The character '"+(char)ch+"' is an invalid XML character");
|
|
442 |
}
|
|
443 |
continue;
|
|
444 |
}
|
|
445 |
if ( unescaped && XML11Char.isXML11ValidLiteral(ch)) {
|
|
446 |
_printer.printText( ch );
|
|
447 |
} else
|
|
448 |
printXMLChar( ch );
|
|
449 |
}
|
|
450 |
} else {
|
|
451 |
// Not preserving spaces: print one part at a time, and
|
|
452 |
// use spaces between parts to break them into different
|
|
453 |
// lines. Spaces at beginning of line will be stripped
|
|
454 |
// by printing mechanism. Line terminator is treated
|
|
455 |
// no different than other text part.
|
|
456 |
for ( index = 0 ; index < length ; ++index ) {
|
|
457 |
ch = text.charAt( index );
|
|
458 |
if (!XML11Char.isXML11Valid(ch)) {
|
|
459 |
// check if it is surrogate
|
|
460 |
if (++index <length) {
|
|
461 |
surrogates(ch, text.charAt(index));
|
|
462 |
} else {
|
|
463 |
fatalError("The character '"+(char)ch+"' is an invalid XML character");
|
|
464 |
}
|
|
465 |
continue;
|
|
466 |
}
|
|
467 |
|
|
468 |
if ( unescaped && XML11Char.isXML11ValidLiteral(ch) )
|
|
469 |
_printer.printText( ch );
|
|
470 |
else
|
|
471 |
printXMLChar( ch);
|
|
472 |
}
|
|
473 |
}
|
|
474 |
}
|
|
475 |
|
|
476 |
|
|
477 |
|
|
478 |
protected void printText( char[] chars, int start, int length,
|
|
479 |
boolean preserveSpace, boolean unescaped ) throws IOException {
|
|
480 |
int index;
|
|
481 |
char ch;
|
|
482 |
|
|
483 |
if ( preserveSpace ) {
|
|
484 |
// Preserving spaces: the text must print exactly as it is,
|
|
485 |
// without breaking when spaces appear in the text and without
|
|
486 |
// consolidating spaces. If a line terminator is used, a line
|
|
487 |
// break will occur.
|
|
488 |
while ( length-- > 0 ) {
|
|
489 |
ch = chars[start++];
|
|
490 |
if (!XML11Char.isXML11Valid(ch)) {
|
|
491 |
// check if it is surrogate
|
|
492 |
if ( length-- > 0) {
|
|
493 |
surrogates(ch, chars[start++]);
|
|
494 |
} else {
|
|
495 |
fatalError("The character '"+(char)ch+"' is an invalid XML character");
|
|
496 |
}
|
|
497 |
continue;
|
|
498 |
}
|
|
499 |
if ( unescaped && XML11Char.isXML11ValidLiteral(ch))
|
|
500 |
_printer.printText( ch );
|
|
501 |
else
|
|
502 |
printXMLChar( ch );
|
|
503 |
}
|
|
504 |
} else {
|
|
505 |
// Not preserving spaces: print one part at a time, and
|
|
506 |
// use spaces between parts to break them into different
|
|
507 |
// lines. Spaces at beginning of line will be stripped
|
|
508 |
// by printing mechanism. Line terminator is treated
|
|
509 |
// no different than other text part.
|
|
510 |
while ( length-- > 0 ) {
|
|
511 |
ch = chars[start++];
|
|
512 |
if (!XML11Char.isXML11Valid(ch)) {
|
|
513 |
// check if it is surrogate
|
|
514 |
if ( length-- > 0) {
|
|
515 |
surrogates(ch, chars[start++]);
|
|
516 |
} else {
|
|
517 |
fatalError("The character '"+(char)ch+"' is an invalid XML character");
|
|
518 |
}
|
|
519 |
continue;
|
|
520 |
}
|
|
521 |
|
|
522 |
if ( unescaped && XML11Char.isXML11ValidLiteral(ch))
|
|
523 |
_printer.printText( ch );
|
|
524 |
else
|
|
525 |
printXMLChar( ch );
|
|
526 |
}
|
|
527 |
}
|
|
528 |
}
|
|
529 |
|
|
530 |
|
|
531 |
public boolean reset() {
|
|
532 |
super.reset();
|
|
533 |
return true;
|
|
534 |
|
|
535 |
}
|
|
536 |
|
|
537 |
}
|