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From nightowl...@apache.org
Subject [41/50] [abbrv] lucenenet git commit: Fixed various compile warnings (mostly XML documentation references)
Date Sat, 09 Sep 2017 00:31:59 GMT
http://git-wip-us.apache.org/repos/asf/lucenenet/blob/5594d5bb/src/Lucene.Net.Benchmark/Support/TagSoup/XMLReader.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Benchmark/Support/TagSoup/XMLReader.cs b/src/Lucene.Net.Benchmark/Support/TagSoup/XMLReader.cs
deleted file mode 100644
index 443348d..0000000
--- a/src/Lucene.Net.Benchmark/Support/TagSoup/XMLReader.cs
+++ /dev/null
@@ -1,1567 +0,0 @@
-// XMLWriter.java - serialize an XML document.
-// Written by David Megginson, david@megginson.com
-// and placed by him into the public domain.
-// Extensively modified by John Cowan for TagSoup.
-// TagSoup is licensed under the Apache License,
-// Version 2.0.  You may obtain a copy of this license at
-// http://www.apache.org/licenses/LICENSE-2.0 .  You may also have
-// additional legal rights not granted by this license.
-//
-// TagSoup is distributed in the hope that it will be useful, but
-// unless required by applicable law or agreed to in writing, TagSoup
-// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS
-// OF ANY KIND, either express or implied; not even the implied warranty
-// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
-
-using Sax;
-using Sax.Ext;
-using Sax.Helpers;
-using System;
-using System.Collections;
-using System.Collections.Generic;
-using System.Globalization;
-using System.IO;
-
-namespace TagSoup
-{
-    /// <summary>
-    /// Filter to write an XML document from a SAX event stream.
-    /// </summary>
-    /// <remarks>
-    /// This class can be used by itself or as part of a SAX event
-    /// stream: it takes as input a series of SAX2 ContentHandler
-    /// events and uses the information in those events to write
-    /// an XML document.  Since this class is a filter, it can also
-    /// pass the events on down a filter chain for further processing
-    /// (you can use the XMLWriter to take a snapshot of the current
-    /// state at any point in a filter chain), and it can be
-    /// used directly as a ContentHandler for a SAX2 XMLReader.
-    /// <para>
-    /// The client creates a document by invoking the methods for
-    /// standard SAX2 events, always beginning with the
-    /// <see cref="StartDocument()" /> method and ending with
-    /// the <see cref="EndDocument()" /> method.  There are convenience
-    /// methods provided so that clients to not have to create empty
-    /// attribute lists or provide empty strings as parameters; for
-    /// example, the method invocation
-    /// </para>
-    /// <code>
-    ///     w.StartElement("foo");
-    /// </code>
-    /// <para>is equivalent to the regular SAX2 ContentHandler method</para>
-    /// <code>
-    ///     w.StartElement("", "foo", "", new Attributes());
-    /// </code>
-    /// <para>
-    /// Except that it is more efficient because it does not allocate
-    /// a new empty attribute list each time.  The following code will send
-    /// a simple XML document to standard output:
-    /// </para>
-    /// <code>
-    ///     XMLWriter w = new XMLWriter();
-    ///     w.StartDocument();
-    ///     w.StartElement("greeting");
-    ///     w.Characters("Hello, world!");
-    ///     w.EndElement("greeting");
-    ///     w.EndDocument();
-    /// </code>
-    /// <para>The resulting document will look like this:</para>
-    /// <code>
-    /// &lt;?xml version="1.0" standalone="yes"?>
-    /// &lt;greeting>Hello, world!&lt;/greeting>
-    /// </code>
-    /// <para>
-    /// In fact, there is an even simpler convenience method,
-    /// <see cref="DataElement(string, string)"/>, designed for writing elements that
-    /// contain only character data, so the code to generate the
-    /// document could be shortened to
-    /// </para>
-    /// <code>
-    ///     XMLWriter w = new XMLWriter();
-    ///     w.StartDocument();
-    ///     w.DataElement("greeting", "Hello, world!");
-    ///     w.EndDocument();
-    /// </code>
-    /// <h2>Whitespace</h2>
-    /// <para>
-    /// According to the XML Recommendation, <em>all</em> whitespace
-    /// in an XML document is potentially significant to an application,
-    /// so this class never adds newlines or indentation.  If you
-    /// insert three elements in a row, as in
-    /// </para>
-    /// <code>
-    ///     w.DataElement("item", "1");
-    ///     w.DataElement("item", "2");
-    ///     w.DataElement("item", "3");
-    /// </code>
-    /// <para>you will end up with</para>
-    /// <code>
-    ///     &lt;item>1&lt;/item>&lt;item>3&lt;/item>&lt;item>3&lt;/item>
-    /// </code>
-    /// <para>
-    /// You need to invoke one of the <c>Characters</c> methods
-    /// explicitly to add newlines or indentation.  Alternatively, you
-    /// can use <see cref="com.megginson.sax.DataWriter DataWriter" />, which
-    /// is derived from this class -- it is optimized for writing
-    /// purely data-oriented (or field-oriented) XML, and does automatic
-    /// linebreaks and indentation (but does not support mixed content
-    /// properly).
-    /// </para>
-    /// <h2>Namespace Support</h2>
-    /// <para>
-    /// The writer contains extensive support for XML Namespaces, so that
-    /// a client application does not have to keep track of prefixes and
-    /// supply <c>xmlns</c> attributes.  By default, the XML writer will
-    /// generate Namespace declarations in the form _NS1, _NS2, etc., wherever
-    /// they are needed, as in the following example:
-    /// </para>
-    /// <code>
-    ///     w.StartDocument();
-    ///     w.EmptyElement("http://www.foo.com/ns/", "foo");
-    ///     w.EndDocument();
-    /// </code>
-    /// <para>The resulting document will look like this:</para>
-    /// <code>
-    ///     &lt;?xml version="1.0" standalone="yes"?>
-    ///     &lt;_NS1:foo xmlns:_NS1="http://www.foo.com/ns/"/>
-    /// </code>
-    /// <para>
-    /// In many cases, document authors will prefer to choose their
-    /// own prefixes rather than using the (ugly) default names.  The
-    /// XML writer allows two methods for selecting prefixes:
-    /// </para>
-    /// <list type="number">
-    ///     <item><description>the qualified name</description></item>
-    ///     <item><description>the <see cref="Prefix" /> property.</description></item>
-    /// </list>
-    /// <para>
-    /// Whenever the XML writer finds a new Namespace URI, it checks
-    /// to see if a qualified (prefixed) name is also available; if so
-    /// it attempts to use the name's prefix (as long as the prefix is
-    /// not already in use for another Namespace URI).
-    /// </para>
-    /// <para>
-    /// Before writing a document, the client can also pre-map a prefix
-    /// to a Namespace URI with the setPrefix method:
-    /// </para>
-    /// <code>
-    ///     w.SetPrefix("http://www.foo.com/ns/", "foo");
-    ///     w.StartDocument();
-    ///     w.EmptyElement("http://www.foo.com/ns/", "foo");
-    ///     w.EndDocument();
-    /// </code>
-    /// <para>The resulting document will look like this:</para>
-    /// <code>
-    ///     &lt;?xml version="1.0" standalone="yes"?>
-    ///     &lt;foo:foo xmlns:foo="http://www.foo.com/ns/"/>
-    /// </code>
-    /// <para>The default Namespace simply uses an empty string as the prefix:</para>
-    /// <code>
-    ///     w.SetPrefix("http://www.foo.com/ns/", "");
-    ///     w.StartDocument();
-    ///     w.EmptyElement("http://www.foo.com/ns/", "foo");
-    ///     w.EndDocument();
-    /// </code>
-    /// <para>The resulting document will look like this:</para>
-    /// <code>
-    ///     &lt;?xml version="1.0" standalone="yes"?>
-    ///     &lt;foo xmlns="http://www.foo.com/ns/"/>
-    /// </code>
-    /// <para>
-    /// By default, the XML writer will not declare a Namespace until
-    /// it is actually used.  Sometimes, this approach will create
-    /// a large number of Namespace declarations, as in the following
-    /// example:
-    /// </para>
-    /// <code>
-    ///     &lt;xml version="1.0" standalone="yes"?>
-    ///     &lt;rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
-    ///     &lt;rdf:Description about="http://www.foo.com/ids/books/12345">
-    ///     &lt;dc:title xmlns:dc="http://www.purl.org/dc/">A Dark Night&lt;/dc:title>
-    ///     &lt;dc:creator xmlns:dc="http://www.purl.org/dc/">Jane Smith&lt;/dc:title>
-    ///     &lt;dc:date xmlns:dc="http://www.purl.org/dc/">2000-09-09&lt;/dc:title>
-    ///     &lt;/rdf:Description>
-    ///     &lt;/rdf:RDF>
-    /// </code>
-    /// <para>
-    /// The "rdf" prefix is declared only once, because the RDF Namespace
-    /// is used by the root element and can be inherited by all of its
-    /// descendants; the "dc" prefix, on the other hand, is declared three
-    /// times, because no higher element uses the Namespace.  To solve this
-    /// problem, you can instruct the XML writer to predeclare Namespaces
-    /// on the root element even if they are not used there:
-    /// </para>
-    /// <code>
-    ///     w.ForceNSDecl("http://www.purl.org/dc/");
-    /// </code>
-    /// <para>
-    /// Now, the "dc" prefix will be declared on the root element even
-    /// though it's not needed there, and can be inherited by its
-    /// descendants:
-    /// </para>
-    /// <code>
-    ///     &lt;xml version="1.0" standalone="yes"?>
-    ///     &lt;rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-    ///     xmlns:dc="http://www.purl.org/dc/">
-    ///     &lt;rdf:Description about="http://www.foo.com/ids/books/12345">
-    ///     &lt;dc:title>A Dark Night&lt;/dc:title>
-    ///     &lt;dc:creator>Jane Smith&lt;/dc:title>
-    ///     &lt;dc:date>2000-09-09&lt;/dc:title>
-    ///     &lt;/rdf:Description>
-    ///     &lt;/rdf:RDF>
-    /// </code>
-    /// <para>
-    /// This approach is also useful for declaring Namespace prefixes
-    /// that be used by qualified names appearing in attribute values or
-    /// character data.
-    /// </para>
-    /// </remarks>
-    /// <author>David Megginson, david@megginson.com</author>
-    /// <version>.2</version>
-    /// <seealso cref="IXMLFilter" />
-    /// <seealso cref="IContentHandler" />
-    public class XMLWriter : XMLFilter, ILexicalHandler
-    {
-        ////////////////////////////////////////////////////////////////////
-        // Constructors.
-        ////////////////////////////////////////////////////////////////////
-
-        /// <summary>
-        /// Create a new XML writer.
-        /// <para>Write to standard output.</para>
-        /// </summary>
-        public XMLWriter()
-        {
-            Init(null);
-        }
-
-        /// <summary>
-        /// Create a new XML writer.
-        /// <para>Write to the writer provided.</para>
-        /// </summary>
-        /// <param name="writer">
-        /// The output destination, or null to use standard
-        /// output.
-        /// </param>
-        public XMLWriter(TextWriter writer)
-        {
-            Init(writer);
-        }
-
-        /// <summary>
-        /// Create a new XML writer.
-        /// <para>Use the specified XML reader as the parent.</para>
-        /// </summary>
-        /// <param name="xmlreader">
-        /// The parent in the filter chain, or null
-        /// for no parent.
-        /// </param>
-        public XMLWriter(IXMLReader xmlreader) : base(xmlreader)
-        {
-            Init(null);
-        }
-
-        /// <summary>
-        /// Create a new XML writer.
-        /// <para>
-        /// Use the specified XML reader as the parent, and write
-        /// to the specified writer.
-        /// </para>
-        /// </summary>
-        /// <param name="xmlreader">
-        /// The parent in the filter chain, or null
-        /// for no parent.
-        /// </param>
-        /// <param name="writer">
-        /// The output destination, or null to use standard
-        /// output.
-        /// </param>
-        public XMLWriter(IXMLReader xmlreader, TextWriter writer) : base(xmlreader)
-        {
-            Init(writer);
-        }
-
-        public virtual void EndCDATA()
-        {
-        }
-
-        public virtual void EndDTD()
-        {
-        }
-
-        public virtual void EndEntity(string name)
-        {
-        }
-
-        public virtual void StartCDATA()
-        {
-        }
-
-        public virtual void StartDTD(string name, string publicid, string systemid)
-        {
-            if (name == null)
-            {
-                return; // can't cope
-            }
-            if (hasOutputDTD)
-            {
-                return; // only one DTD
-            }
-            hasOutputDTD = true;
-            Write("<!DOCTYPE ");
-            Write(name);
-            if (systemid == null)
-            {
-                systemid = "";
-            }
-            if (overrideSystem != null)
-            {
-                systemid = overrideSystem;
-            }
-            char sysquote = (systemid.IndexOf('"') != -1) ? '\'' : '"';
-            if (overridePublic != null)
-            {
-                publicid = overridePublic;
-            }
-            if (!(publicid == null || "".Equals(publicid)))
-            {
-                char pubquote = (publicid.IndexOf('"') != -1) ? '\'' : '"';
-                Write(" PUBLIC ");
-                Write(pubquote);
-                Write(publicid);
-                Write(pubquote);
-                Write(' ');
-            }
-            else
-            {
-                Write(" SYSTEM ");
-            }
-            Write(sysquote);
-            Write(systemid);
-            Write(sysquote);
-            Write(">\n");
-        }
-
-        public virtual void StartEntity(string name)
-        {
-        }
-
-        /// <summary>
-        /// Internal initialization method.
-        /// <para>All of the public constructors invoke this method.</para>
-        /// </summary>
-        /// <param name="writer">
-        /// The output destination, or null to use
-        /// standard output.
-        /// </param>
-        private void Init(TextWriter writer)
-        {
-            SetOutput(writer);
-            nsSupport = new NamespaceSupport();
-            prefixTable = new Hashtable();
-            forcedDeclTable = new Hashtable();
-            doneDeclTable = new Hashtable();
-            outputProperties = new Dictionary<string, string>();
-        }
-
-        /// <summary>
-        /// Reset the writer.
-        /// <para>
-        /// This method is especially useful if the writer throws an
-        /// exception before it is finished, and you want to reuse the
-        /// writer for a new document.  It is usually a good idea to
-        /// invoke <see cref="Flush" /> before resetting the writer,
-        /// to make sure that no output is lost.
-        /// </para>
-        /// <para>
-        /// This method is invoked automatically by the
-        /// <see cref="StartDocument" /> method before writing
-        /// a new document.
-        /// </para>
-        /// <para>
-        /// <strong>Note:</strong> this method will <em>not</em>
-        /// clear the prefix or URI information in the writer or
-        /// the selected output writer.
-        /// </para>
-        /// </summary>
-        /// <seealso cref="Flush" />
-        public virtual void Reset()
-        {
-            elementLevel = 0;
-            prefixCounter = 0;
-            nsSupport.Reset();
-        }
-
-        /// <summary>
-        /// Flush the output.
-        /// <para>
-        /// This method flushes the output stream.  It is especially useful
-        /// when you need to make certain that the entire document has
-        /// been written to output but do not want to close the output
-        /// stream.
-        /// </para>
-        /// <para>
-        /// This method is invoked automatically by the
-        /// <see cref="EndDocument" /> method after writing a
-        /// document.
-        /// </para>
-        /// </summary>
-        /// <seealso cref="Reset" />
-        public virtual void Flush()
-        {
-            output.Flush();
-        }
-
-        /// <summary>
-        /// Set a new output destination for the document.
-        /// </summary>
-        /// <param name="writer">
-        /// The output destination, or null to use
-        /// standard output.
-        /// </param>
-        /// <seealso cref="Flush" />
-        public virtual void SetOutput(TextWriter writer)
-        {
-            if (writer == null)
-            {
-                output = new StreamWriter(Console.OpenStandardOutput());
-            }
-            else
-            {
-                output = writer;
-            }
-        }
-
-        /// <summary>
-        /// Specify a preferred prefix for a Namespace URI.
-        /// <para>
-        /// Note that this method does not actually force the Namespace
-        /// to be declared; to do that, use the <see cref="ForceNSDecl(string)" />
-        /// method as well.
-        /// </para>
-        /// </summary>
-        /// <param name="uri">
-        /// The Namespace URI.
-        /// </param>
-        /// <param name="prefix">
-        /// The preferred prefix, or "" to select
-        /// the default Namespace.
-        /// </param>
-        /// <seealso cref="GetPrefix" />
-        /// <seealso cref="ForceNSDecl(string)" />
-        /// <seealso cref="ForceNSDecl(string,string)" />
-        public virtual void SetPrefix(string uri, string prefix)
-        {
-            prefixTable[uri] = prefix;
-        }
-
-        /// <summary>
-        /// Get the current or preferred prefix for a Namespace URI.
-        /// </summary>
-        /// <param name="uri">The Namespace URI.</param>
-        /// <returns>The preferred prefix, or "" for the default Namespace.</returns>
-        /// <seealso cref="SetPrefix" />
-        public virtual string GetPrefix(string uri)
-        {
-            return (string)(prefixTable.ContainsKey(uri) ? prefixTable[uri] : string.Empty);
-        }
-
-        /// <summary>
-        /// Force a Namespace to be declared on the root element.
-        /// <para>
-        /// By default, the XMLWriter will declare only the Namespaces
-        /// needed for an element; as a result, a Namespace may be
-        /// declared many places in a document if it is not used on the
-        /// root element.
-        /// </para>
-        /// <para>
-        /// This method forces a Namespace to be declared on the root
-        /// element even if it is not used there, and reduces the number
-        /// of xmlns attributes in the document.
-        /// </para>
-        /// </summary>
-        /// <param name="uri">
-        /// The Namespace URI to declare.
-        /// </param>
-        /// <seealso cref="ForceNSDecl(string,string)" />
-        /// <seealso cref="SetPrefix" />
-        public virtual void ForceNSDecl(string uri)
-        {
-            forcedDeclTable[uri] = true;
-        }
-
-        /// <summary>
-        /// Force a Namespace declaration with a preferred prefix.
-        /// <para>
-        /// This is a convenience method that invokes <see cref="SetPrefix" />
-        /// then <see cref="ForceNSDecl(string)" />.
-        /// </para>
-        /// </summary>
-        /// <param name="uri">
-        /// The Namespace URI to declare on the root element.
-        /// </param>
-        /// <param name="prefix">
-        /// The preferred prefix for the Namespace, or ""
-        /// for the default Namespace.
-        /// </param>
-        /// <seealso cref="SetPrefix" />
-        /// <seealso cref="ForceNSDecl(string)" />
-        public virtual void ForceNSDecl(string uri, string prefix)
-        {
-            SetPrefix(uri, prefix);
-            ForceNSDecl(uri);
-        }
-
-        ////////////////////////////////////////////////////////////////////
-        // Methods from Sax.5IContentHandler.
-        ////////////////////////////////////////////////////////////////////
-
-        /// <summary>
-        /// Write the XML declaration at the beginning of the document.
-        /// Pass the event on down the filter chain for further processing.
-        /// </summary>
-        /// <exception cref="SAXException">
-        /// If there is an error
-        /// writing the XML declaration, or if a handler further down
-        /// the filter chain raises an exception.
-        /// </exception>
-        /// <seealso cref="IContentHandler.StartDocument" />
-        public override void StartDocument()
-        {
-            Reset();
-            if (!("yes".Equals(outputProperties[OMIT_XML_DECLARATION] ?? "no")))
-            {
-                Write("<?xml");
-                if (version == null)
-                {
-                    Write(" version=\"1.0\"");
-                }
-                else
-                {
-                    Write(" version=\"");
-                    Write(version);
-                    Write("\"");
-                }
-                if (false == string.IsNullOrEmpty(outputEncoding))
-                {
-                    Write(" encoding=\"");
-                    Write(outputEncoding);
-                    Write("\"");
-                }
-                if (standalone == null)
-                {
-                    Write(" standalone=\"yes\"?>\n");
-                }
-                else
-                {
-                    Write(" standalone=\"");
-                    Write(standalone);
-                    Write("\"");
-                }
-            }
-            base.StartDocument();
-        }
-
-        /// <summary>
-        /// Write a newline at the end of the document.
-        /// Pass the event on down the filter chain for further processing.
-        /// </summary>
-        /// <exception cref="SAXException">
-        /// If there is an error
-        /// writing the newline, or if a handler further down
-        /// the filter chain raises an exception.
-        /// </exception>
-        /// <seealso cref="IContentHandler.EndDocument" />
-        public override void EndDocument()
-        {
-            Write('\n');
-            base.EndDocument();
-            try
-            {
-                Flush();
-            }
-            catch (IOException e)
-            {
-                throw new SAXException(e.Message, e);
-            }
-        }
-
-        /// <summary>
-        /// Write a start tag.
-        /// Pass the event on down the filter chain for further processing.
-        /// </summary>
-        /// <param name="uri">
-        /// The Namespace URI, or the empty string if none
-        /// is available.
-        /// </param>
-        /// <param name="localName">
-        /// The element's local (unprefixed) name (required).
-        /// </param>
-        /// <param name="qName">
-        /// The element's qualified (prefixed) name, or the
-        /// empty string is none is available.  This method will
-        /// use the qName as a template for generating a prefix
-        /// if necessary, but it is not guaranteed to use the
-        /// same qName.
-        /// </param>
-        /// <param name="atts">
-        /// The element's attribute list (must not be null).
-        /// </param>
-        /// <exception cref="SAXException">
-        /// If there is an error
-        /// writing the start tag, or if a handler further down
-        /// the filter chain raises an exception.
-        /// </exception>
-        /// <seealso cref="IContentHandler.StartElement" />
-        public override void StartElement(string uri, string localName, string qName, IAttributes atts)
-        {
-            elementLevel++;
-            nsSupport.PushContext();
-            if (forceDTD && !hasOutputDTD)
-            {
-                StartDTD(localName ?? qName, "", "");
-            }
-            Write('<');
-            WriteName(uri, localName, qName, true);
-            WriteAttributes(atts);
-            if (elementLevel == 1)
-            {
-                ForceNSDecls();
-            }
-            WriteNSDecls();
-            Write('>');
-            //	System.out.println("%%%% startElement [" + qName + "] htmlMode = " + htmlMode);
-            if (htmlMode && (qName.Equals("script") || qName.Equals("style")))
-            {
-                cdataElement = true;
-                //		System.out.println("%%%% CDATA element");
-            }
-            base.StartElement(uri, localName, qName, atts);
-        }
-
-        /// <summary>
-        /// Write an end tag.
-        /// Pass the event on down the filter chain for further processing.
-        /// </summary>
-        /// <param name="uri">
-        /// The Namespace URI, or the empty string if none
-        /// is available.
-        /// </param>
-        /// <param name="localName">
-        /// The element's local (unprefixed) name (required).
-        /// </param>
-        /// <param name="qName">
-        /// The element's qualified (prefixed) name, or the
-        /// empty string is none is available.  This method will
-        /// use the qName as a template for generating a prefix
-        /// if necessary, but it is not guaranteed to use the
-        /// same qName.
-        /// </param>
-        /// <exception cref="SAXException">
-        /// If there is an error
-        /// writing the end tag, or if a handler further down
-        /// the filter chain raises an exception.
-        /// </exception>
-        /// <seealso cref="IContentHandler.EndElement" />
-        public override void EndElement(string uri, string localName, string qName)
-        {
-            if (
-              !(htmlMode && (uri.Equals("http://www.w3.org/1999/xhtml") || uri.Equals(""))
-                && (qName.Equals("area") || qName.Equals("base") || qName.Equals("basefont") || qName.Equals("br")
-                    || qName.Equals("col") || qName.Equals("frame") || qName.Equals("hr") || qName.Equals("img")
-                    || qName.Equals("input") || qName.Equals("isindex") || qName.Equals("link") || qName.Equals("meta")
-                    || qName.Equals("param"))))
-            {
-                Write("</");
-                WriteName(uri, localName, qName, true);
-                Write('>');
-            }
-            if (elementLevel == 1)
-            {
-                Write('\n');
-            }
-            cdataElement = false;
-            base.EndElement(uri, localName, qName);
-            nsSupport.PopContext();
-            elementLevel--;
-        }
-
-        /// <summary>
-        /// Write character data.
-        /// Pass the event on down the filter chain for further processing.
-        /// </summary>
-        /// <param name="ch">
-        /// The array of characters to write.
-        /// </param>
-        /// <param name="start">
-        /// The starting position in the array.
-        /// </param>
-        /// <param name="length">
-        /// The number of characters to write.
-        /// </param>
-        /// <exception cref="SAXException">
-        /// If there is an error
-        /// writing the characters, or if a handler further down
-        /// the filter chain raises an exception.
-        /// </exception>
-        /// <seealso cref="IContentHandler.Characters" />
-        public override void Characters(char[] ch, int start, int length)
-        {
-            if (!cdataElement)
-            {
-                WriteEsc(ch, start, length, false);
-            }
-            else
-            {
-                for (int i = start; i < start + length; i++)
-                {
-                    Write(ch[i]);
-                }
-            }
-            base.Characters(ch, start, length);
-        }
-
-        /// <summary>
-        /// Write ignorable whitespace.
-        /// Pass the event on down the filter chain for further processing.
-        /// </summary>
-        /// <param name="ch">
-        /// The array of characters to write.
-        /// </param>
-        /// <param name="start">
-        /// The starting position in the array.
-        /// </param>
-        /// <param name="length">
-        /// The number of characters to write.
-        /// </param>
-        /// <exception cref="SAXException">
-        /// If there is an error
-        /// writing the whitespace, or if a handler further down
-        /// the filter chain raises an exception.
-        /// </exception>
-        /// <seealso cref="IContentHandler.IgnorableWhitespace" />
-        public override void IgnorableWhitespace(char[] ch, int start, int length)
-        {
-            WriteEsc(ch, start, length, false);
-            base.IgnorableWhitespace(ch, start, length);
-        }
-
-        /// <summary>
-        /// Write a processing instruction.
-        /// Pass the event on down the filter chain for further processing.
-        /// </summary>
-        /// <param name="target">
-        /// The PI target.
-        /// </param>
-        /// <param name="data">
-        /// The PI data.
-        /// </param>
-        /// <exception cref="SAXException">
-        /// If there is an error
-        /// writing the PI, or if a handler further down
-        /// the filter chain raises an exception.
-        /// </exception>
-        /// <seealso cref="IContentHandler.ProcessingInstruction" />
-        public override void ProcessingInstruction(string target, string data)
-        {
-            Write("<?");
-            Write(target);
-            Write(' ');
-            Write(data);
-            Write("?>");
-            if (elementLevel < 1)
-            {
-                Write('\n');
-            }
-            base.ProcessingInstruction(target, data);
-        }
-
-        /// <summary>
-        /// Write an empty element.
-        /// This method writes an empty element tag rather than a start tag
-        /// followed by an end tag.  Both a <see cref="StartElement" />
-        /// and an <see cref="EndElement(string,string,string)" /> event will
-        /// be passed on down the filter chain.
-        /// </summary>
-        /// <param name="uri">
-        /// The element's Namespace URI, or the empty string
-        /// if the element has no Namespace or if Namespace
-        /// processing is not being performed.
-        /// </param>
-        /// <param name="localName">
-        /// The element's local name (without prefix).  This
-        /// parameter must be provided.
-        /// </param>
-        /// <param name="qName">
-        /// The element's qualified name (with prefix), or
-        /// the empty string if none is available.  This parameter
-        /// is strictly advisory: the writer may or may not use
-        /// the prefix attached.
-        /// </param>
-        /// <param name="atts">
-        /// The element's attribute list.
-        /// </param>
-        /// <exception cref="SAXException">
-        /// If there is an error
-        /// writing the empty tag, or if a handler further down
-        /// the filter chain raises an exception.
-        /// </exception>
-        /// <seealso cref="StartElement" />
-        /// <seealso cref="EndElement(string,string,string) " />
-        public virtual void EmptyElement(string uri, string localName, string qName, IAttributes atts)
-        {
-            nsSupport.PushContext();
-            Write('<');
-            WriteName(uri, localName, qName, true);
-            WriteAttributes(atts);
-            if (elementLevel == 1)
-            {
-                ForceNSDecls();
-            }
-            WriteNSDecls();
-            Write("/>");
-            base.StartElement(uri, localName, qName, atts);
-            base.EndElement(uri, localName, qName);
-        }
-
-        /// <summary>
-        /// Start a new element without a qname or attributes.
-        /// <para>
-        /// This method will provide a default empty attribute
-        /// list and an empty string for the qualified name.
-        /// It invokes <see cref="StartElement(string, string, string, IAttributes)"/>
-        /// directly.
-        /// </para>
-        /// </summary>
-        /// <param name="uri">
-        /// The element's Namespace URI.
-        /// </param>
-        /// <param name="localName">
-        /// The element's local name.
-        /// </param>
-        /// <exception cref="SAXException">
-        /// If there is an error
-        /// writing the start tag, or if a handler further down
-        /// the filter chain raises an exception.
-        /// </exception>
-        /// <seealso cref="StartElement(string, string, string, IAttributes)" />
-        public virtual void StartElement(string uri, string localName)
-        {
-            StartElement(uri, localName, "", EMPTY_ATTS);
-        }
-
-        /// <summary>
-        /// Start a new element without a qname, attributes or a Namespace URI.
-        /// <para>
-        /// This method will provide an empty string for the
-        /// Namespace URI, and empty string for the qualified name,
-        /// and a default empty attribute list. It invokes
-        /// #startElement(string, string, string, Attributes)}
-        /// directly.
-        /// </para>
-        /// </summary>
-        /// <param name="localName">
-        /// The element's local name.
-        /// </param>
-        /// <exception cref="SAXException">
-        /// If there is an error
-        /// writing the start tag, or if a handler further down
-        /// the filter chain raises an exception.
-        /// </exception>
-        /// <seealso cref="StartElement(string, string, string, IAttributes)" />
-        public virtual void StartElement(string localName)
-        {
-            StartElement("", localName, "", EMPTY_ATTS);
-        }
-
-        /// <summary>
-        /// End an element without a qname.
-        /// <para>
-        /// This method will supply an empty string for the qName.
-        /// It invokes <see cref="EndElement(string, string, string)" />
-        /// directly.
-        /// </para>
-        /// </summary>
-        /// <param name="uri">
-        /// The element's Namespace URI.
-        /// </param>
-        /// <param name="localName">
-        /// The element's local name.
-        /// </param>
-        /// <exception cref="SAXException">
-        /// If there is an error
-        /// writing the end tag, or if a handler further down
-        /// the filter chain raises an exception.
-        /// </exception>
-        /// <seealso cref="EndElement(string, string, string)" />
-        public virtual void EndElement(string uri, string localName)
-        {
-            EndElement(uri, localName, "");
-        }
-
-        /// <summary>
-        /// End an element without a Namespace URI or qname.
-        /// <para>
-        /// This method will supply an empty string for the qName
-        /// and an empty string for the Namespace URI.
-        /// It invokes <see cref="EndElement(string, string, string)" />
-        /// directly.
-        /// </para>
-        /// </summary>
-        /// <param name="localName">
-        /// The element's local name.
-        /// </param>
-        /// <exception cref="SAXException">
-        /// If there is an error
-        /// writing the end tag, or if a handler further down
-        /// the filter chain raises an exception.
-        /// </exception>
-        /// <seealso cref="EndElement(string, string, string)" />
-        public virtual void EndElement(string localName)
-        {
-            EndElement("", localName, "");
-        }
-
-        /// <summary>
-        /// Add an empty element without a qname or attributes.
-        /// <para>
-        /// This method will supply an empty string for the qname
-        /// and an empty attribute list.  It invokes
-        /// <see cref="EmptyElement(string, string, string, IAttributes)" />
-        /// directly.
-        /// </para>
-        /// </summary>
-        /// <param name="uri">
-        /// The element's Namespace URI.
-        /// </param>
-        /// <param name="localName">
-        /// The element's local name.
-        /// </param>
-        /// <exception cref="SAXException">
-        /// If there is an error
-        /// writing the empty tag, or if a handler further down
-        /// the filter chain raises an exception.
-        /// </exception>
-        /// <seealso cref="EmptyElement(string, string, string, IAttributes)" />
-        public virtual void EmptyElement(string uri, string localName)
-        {
-            EmptyElement(uri, localName, "", EMPTY_ATTS);
-        }
-
-        /// <summary>
-        /// Add an empty element without a Namespace URI, qname or attributes.
-        /// <para>
-        /// This method will supply an empty string for the qname,
-        /// and empty string for the Namespace URI, and an empty
-        /// attribute list.  It invokes
-        /// <see cref="EmptyElement(string, string, string, IAttributes)" />
-        /// directly.
-        /// </para>
-        /// </summary>
-        /// <param name="localName">
-        /// The element's local name.
-        /// </param>
-        /// <exception cref="SAXException">
-        /// If there is an error
-        /// writing the empty tag, or if a handler further down
-        /// the filter chain raises an exception.
-        /// </exception>
-        /// <seealso cref="EmptyElement(string, string, string, IAttributes)" />
-        public virtual void EmptyElement(string localName)
-        {
-            EmptyElement("", localName, "", EMPTY_ATTS);
-        }
-
-        /// <summary>
-        /// Write an element with character data content.
-        /// <para>
-        /// This is a convenience method to write a complete element
-        /// with character data content, including the start tag
-        /// and end tag.
-        /// </para>
-        /// <para>
-        /// This method invokes
-        /// <see cref="StartElement(string, string, string, IAttributes)" />,
-        /// followed by
-        /// <see cref="Characters(string)" />, followed by
-        /// <see cref="EndElement(string, string, string)" />.
-        /// </para>
-        /// </summary>
-        /// <param name="uri">
-        /// The element's Namespace URI.
-        /// </param>
-        /// <param name="localName">
-        /// The element's local name.
-        /// </param>
-        /// <param name="qName">
-        /// The element's default qualified name.
-        /// </param>
-        /// <param name="atts">
-        /// The element's attributes.
-        /// </param>
-        /// <param name="content">
-        /// The character data content.
-        /// </param>
-        /// <exception cref="SAXException">
-        /// If there is an error
-        /// writing the empty tag, or if a handler further down
-        /// the filter chain raises an exception.
-        /// </exception>
-        /// <seealso cref="StartElement(string, string, string, IAttributes)" />
-        /// <seealso cref="Characters(string)" />
-        /// <seealso cref="EndElement(string, string, string)" />
-        public virtual void DataElement(string uri, string localName, string qName, IAttributes atts, string content)
-        {
-            StartElement(uri, localName, qName, atts);
-            Characters(content);
-            EndElement(uri, localName, qName);
-        }
-
-        /// <summary>
-        /// Write an element with character data content but no attributes.
-        /// <para>
-        /// This is a convenience method to write a complete element
-        /// with character data content, including the start tag
-        /// and end tag.  This method provides an empty string
-        /// for the qname and an empty attribute list.
-        /// </para>
-        /// <para>
-        /// This method invokes
-        /// <see cref="StartElement(string, string, string, IAttributes)" />,
-        /// followed by
-        /// <see cref="Characters(string)" />, followed by
-        /// <see cref="EndElement(string, string, string)" />.
-        /// </para>
-        /// </summary>
-        /// <param name="uri">
-        /// The element's Namespace URI.
-        /// </param>
-        /// <param name="localName">
-        /// The element's local name.
-        /// </param>
-        /// <param name="content">
-        /// The character data content.
-        /// </param>
-        /// <exception cref="SAXException">
-        /// If there is an error
-        /// writing the empty tag, or if a handler further down
-        /// the filter chain raises an exception.
-        /// </exception>
-        /// <seealso cref="StartElement(string, string, string, IAttributes)" />
-        /// <seealso cref="Characters(string)" />
-        /// <seealso cref="EndElement(string, string, string)" />
-        public virtual void DataElement(string uri, string localName, string content)
-        {
-            DataElement(uri, localName, "", EMPTY_ATTS, content);
-        }
-
-        /// <summary>
-        /// Write an element with character data content but no attributes or Namespace URI.
-        /// <para>
-        /// This is a convenience method to write a complete element
-        /// with character data content, including the start tag
-        /// and end tag.  The method provides an empty string for the
-        /// Namespace URI, and empty string for the qualified name,
-        /// and an empty attribute list.
-        /// </para>
-        /// <para>
-        /// This method invokes
-        /// <see cref="StartElement(string, string, string, IAttributes)" />,
-        /// followed by
-        /// <see cref="Characters(string)" />, followed by
-        /// <see cref="EndElement(string, string, string)" />.
-        /// </para>
-        /// </summary>
-        /// <param name="localName">
-        /// The element's local name.
-        /// </param>
-        /// <param name="content">
-        /// The character data content.
-        /// </param>
-        /// <exception cref="SAXException">
-        /// If there is an error
-        /// writing the empty tag, or if a handler further down
-        /// the filter chain raises an exception.
-        /// </exception>
-        /// <seealso cref="StartElement(string, string, string, IAttributes)" />
-        /// <seealso cref="Characters(string)" />
-        /// <seealso cref="EndElement(string, string, string)" />
-        public virtual void DataElement(string localName, string content)
-        {
-            DataElement("", localName, "", EMPTY_ATTS, content);
-        }
-
-        /// <summary>
-        /// Write a string of character data, with XML escaping.
-        /// <para>
-        /// This is a convenience method that takes an XML
-        /// string, converts it to a character array, then invokes
-        /// <see cref="Characters(char[], int, int)" />.
-        /// </para>
-        /// </summary>
-        /// <param name="data">
-        /// The character data.
-        /// </param>
-        /// <exception cref="SAXException">
-        /// If there is an error
-        /// writing the string, or if a handler further down
-        /// the filter chain raises an exception.
-        /// </exception>
-        /// <seealso cref="Characters(char[], int, int)" />
-        public virtual void Characters(string data)
-        {
-            char[] ch = data.ToCharArray();
-            Characters(ch, 0, ch.Length);
-        }
-
-        /// <summary>
-        /// Force all Namespaces to be declared.
-        /// This method is used on the root element to ensure that
-        /// the predeclared Namespaces all appear.
-        /// </summary>
-        private void ForceNSDecls()
-        {
-            foreach (string prefix in forcedDeclTable.Keys)
-            {
-                DoPrefix(prefix, null, true);
-            }
-        }
-
-        /// <summary>
-        /// Determine the prefix for an element or attribute name.
-        /// TODO: this method probably needs some cleanup.
-        /// </summary>
-        /// <param name="uri">
-        /// The Namespace URI.
-        /// </param>
-        /// <param name="qName">
-        /// The qualified name (optional); this will be used
-        /// to indicate the preferred prefix if none is currently
-        /// bound.
-        /// </param>
-        /// <param name="isElement">
-        /// true if this is an element name, false
-        /// if it is an attribute name (which cannot use the
-        /// default Namespace).
-        /// </param>
-        private string DoPrefix(string uri, string qName, bool isElement)
-        {
-            string defaultNS = nsSupport.GetUri("");
-            if ("".Equals(uri))
-            {
-                if (isElement && defaultNS != null)
-                {
-                    nsSupport.DeclarePrefix("", "");
-                }
-                return null;
-            }
-            string prefix;
-            if (isElement && defaultNS != null && uri.Equals(defaultNS))
-            {
-                prefix = "";
-            }
-            else
-            {
-                prefix = nsSupport.GetPrefix(uri);
-            }
-            if (prefix != null)
-            {
-                return prefix;
-            }
-            bool containsPrefix = doneDeclTable.ContainsKey(uri);
-            prefix = (string)(containsPrefix ? doneDeclTable[uri] : null);
-            if (containsPrefix && ((!isElement || defaultNS != null) && "".Equals(prefix) || nsSupport.GetUri(prefix) != null))
-            {
-                prefix = null;
-            }
-            if (prefix == null)
-            {
-                containsPrefix = prefixTable.ContainsKey(uri);
-                prefix = (string)(containsPrefix ? prefixTable[uri] : null);
-                if (containsPrefix
-                    && ((!isElement || defaultNS != null) && "".Equals(prefix) || nsSupport.GetUri(prefix) != null))
-                {
-                    prefix = null;
-                }
-            }
-            if (prefix == null && qName != null && !"".Equals(qName))
-            {
-                int i = qName.IndexOf(':');
-                if (i == -1)
-                {
-                    if (isElement && defaultNS == null)
-                    {
-                        prefix = "";
-                    }
-                }
-                else
-                {
-                    prefix = qName.Substring(0, i);
-                }
-            }
-            for (; prefix == null || nsSupport.GetUri(prefix) != null; prefix = "__NS" + ++prefixCounter)
-            {
-            }
-            nsSupport.DeclarePrefix(prefix, uri);
-            doneDeclTable[uri] = prefix;
-            return prefix;
-        }
-
-        /// <summary>
-        /// Write a raw character.
-        /// </summary>
-        /// <param name="c">
-        /// The character to write.
-        /// </param>
-        /// <exception cref="SAXException">
-        /// If there is an error writing
-        /// the character, this method will throw an IOException
-        /// wrapped in a SAXException.
-        /// </exception>
-        private void Write(char c)
-        {
-            try
-            {
-                output.Write(c);
-            }
-            catch (IOException e)
-            {
-                throw new SAXException(e.ToString(), e);
-            }
-        }
-
-        /// <summary>
-        /// Write a raw string.
-        /// </summary>
-        /// <param name="s"></param>
-        /// <exception cref="SAXException">
-        /// If there is an error writing the string,
-        /// this method will throw an IOException wrapped in a SAXException
-        /// </exception>
-        private void Write(string s)
-        {
-            try
-            {
-                output.Write(s);
-            }
-            catch (IOException e)
-            {
-                throw new SAXException(e.ToString(), e);
-            }
-        }
-
-        /// <summary>
-        /// Write out an attribute list, escaping values.
-        /// The names will have prefixes added to them.
-        /// </summary>
-        /// <param name="atts">
-        /// The attribute list to write.
-        /// </param>
-        /// <exception cref="SAXException">
-        /// If there is an error writing
-        /// the attribute list, this method will throw an
-        /// IOException wrapped in a SAXException.
-        /// </exception>
-        private void WriteAttributes(IAttributes atts)
-        {
-            int len = atts.Length;
-            for (int i = 0; i < len; i++)
-            {
-                char[] ch = atts.GetValue(i).ToCharArray();
-                Write(' ');
-                WriteName(atts.GetURI(i), atts.GetLocalName(i), atts.GetQName(i), false);
-                if (htmlMode && BoolAttribute(atts.GetLocalName(i), atts.GetQName(i), atts.GetValue(i)))
-                {
-                    break;
-                }
-                Write("=\"");
-                WriteEsc(ch, 0, ch.Length, true);
-                Write('"');
-            }
-        }
-
-        // Return true if the attribute is an HTML bool from the above list.
-        private bool BoolAttribute(string localName, string qName, string value)
-        {
-            string name = localName;
-            if (name == null)
-            {
-                int i = qName.IndexOf(':');
-                if (i != -1)
-                {
-                    name = qName.Substring(i + 1, qName.Length);
-                }
-            }
-            if (!name.Equals(value))
-            {
-                return false;
-            }
-            for (int j = 0; j < _bools.Length; j++)
-            {
-                if (name.Equals(_bools[j]))
-                {
-                    return true;
-                }
-            }
-            return false;
-        }
-
-        /// <summary>
-        /// Write an array of data characters with escaping.
-        /// </summary>
-        /// <param name="ch">
-        /// The array of characters.
-        /// </param>
-        /// <param name="start">
-        /// The starting position.
-        /// </param>
-        /// <param name="length">
-        /// The number of characters to use.
-        /// </param>
-        /// <param name="isAttVal">
-        /// true if this is an attribute value literal.
-        /// </param>
-        /// <exception cref="SAXException">
-        /// If there is an error writing
-        /// the characters, this method will throw an
-        /// IOException wrapped in a SAXException.
-        /// </exception>
-        private void WriteEsc(char[] ch, int start, int length, bool isAttVal)
-        {
-            for (int i = start; i < start + length; i++)
-            {
-                switch (ch[i])
-                {
-                    case '&':
-                        Write("&amp;");
-                        break;
-                    case '<':
-                        Write("&lt;");
-                        break;
-                    case '>':
-                        Write("&gt;");
-                        break;
-                    case '\"':
-                        if (isAttVal)
-                        {
-                            Write("&quot;");
-                        }
-                        else
-                        {
-                            Write('\"');
-                        }
-                        break;
-                    default:
-                        if (!unicodeMode && ch[i] > '\u007f')
-                        {
-                            Write("&#");
-                            Write(((int)ch[i]).ToString(CultureInfo.InvariantCulture));
-                            Write(';');
-                        }
-                        else
-                        {
-                            Write(ch[i]);
-                        }
-                        break;
-                }
-            }
-        }
-
-        /// <summary>
-        /// Write out the list of Namespace declarations.
-        /// </summary>
-        /// <exception cref="SAXException">
-        /// This method will throw
-        /// an IOException wrapped in a SAXException if
-        /// there is an error writing the Namespace
-        /// declarations.
-        /// </exception>
-        private void WriteNSDecls()
-        {
-            IEnumerable prefixes = nsSupport.GetDeclaredPrefixes();
-            foreach (string prefix in prefixes)
-            {
-                string uri = nsSupport.GetUri(prefix);
-                if (uri == null)
-                {
-                    uri = "";
-                }
-                char[] ch = uri.ToCharArray();
-                Write(' ');
-                if ("".Equals(prefix))
-                {
-                    Write("xmlns=\"");
-                }
-                else
-                {
-                    Write("xmlns:");
-                    Write(prefix);
-                    Write("=\"");
-                }
-                WriteEsc(ch, 0, ch.Length, true);
-                Write('\"');
-            }
-        }
-
-        /// <summary>
-        /// Write an element or attribute name.
-        /// </summary>
-        /// <param name="uri">
-        /// The Namespace URI.
-        /// </param>
-        /// <param name="localName">
-        /// The local name.
-        /// </param>
-        /// <param name="qName">
-        /// The prefixed name, if available, or the empty string.
-        /// </param>
-        /// <param name="isElement">
-        /// true if this is an element name, false if it
-        /// is an attribute name.
-        /// </param>
-        /// <exception cref="SAXException">
-        /// This method will throw an
-        /// IOException wrapped in a SAXException if there is
-        /// an error writing the name.
-        /// </exception>
-        private void WriteName(string uri, string localName, string qName, bool isElement)
-        {
-            string prefix = DoPrefix(uri, qName, isElement);
-            if (prefix != null && !"".Equals(prefix))
-            {
-                Write(prefix);
-                Write(':');
-            }
-            if (localName != null && !"".Equals(localName))
-            {
-                Write(localName);
-            }
-            else
-            {
-                int i = qName.IndexOf(':');
-                Write(qName.Substring(i + 1, qName.Length - (i + 1)));
-            }
-        }
-
-        ////////////////////////////////////////////////////////////////////
-        // Default LexicalHandler implementation
-        ////////////////////////////////////////////////////////////////////
-
-        public virtual void Comment(char[] ch, int start, int length)
-        {
-            Write("<!--");
-            for (int i = start; i < start + length; i++)
-            {
-                Write(ch[i]);
-                if (ch[i] == '-' && i + 1 <= start + length && ch[i + 1] == '-')
-                {
-                    Write(' ');
-                }
-            }
-            Write("-->");
-        }
-
-
-        ////////////////////////////////////////////////////////////////////
-        // Output properties
-        ////////////////////////////////////////////////////////////////////
-
-        public virtual string GetOutputProperty(string key)
-        {
-            return outputProperties[key];
-        }
-
-        public virtual void SetOutputProperty(string key, string value)
-        {
-            outputProperties[key] = value;
-            //	System.out.println("%%%% key = [" + key + "] value = [" + value +"]");
-            if (key.Equals(ENCODING))
-            {
-                outputEncoding = value;
-                unicodeMode = value.Substring(0, 3).Equals("utf", StringComparison.OrdinalIgnoreCase);
-                //                System.out.println("%%%% unicodeMode = " + unicodeMode);
-            }
-            else if (key.Equals(METHOD))
-            {
-                htmlMode = value.Equals("html");
-            }
-            else if (key.Equals(DOCTYPE_PUBLIC))
-            {
-                overridePublic = value;
-                forceDTD = true;
-            }
-            else if (key.Equals(DOCTYPE_SYSTEM))
-            {
-                overrideSystem = value;
-                forceDTD = true;
-            }
-            else if (key.Equals(VERSION))
-            {
-                version = value;
-            }
-            else if (key.Equals(STANDALONE))
-            {
-                standalone = value;
-            }
-            //	System.out.println("%%%% htmlMode = " + htmlMode);
-        }
-
-        ////////////////////////////////////////////////////////////////////
-        // Constants.
-        ////////////////////////////////////////////////////////////////////
-
-        private readonly IAttributes EMPTY_ATTS = new Attributes();
-        public const string CDATA_SECTION_ELEMENTS =
-            "cdata-section-elements";
-        public const string DOCTYPE_PUBLIC = "doctype-public";
-        public const string DOCTYPE_SYSTEM = "doctype-system";
-        public const string ENCODING = "encoding";
-        public const string INDENT = "indent"; // currently ignored
-        public const string MEDIA_TYPE = "media-type"; // currently ignored
-        public const string METHOD = "method"; // currently html or xml
-        public const string OMIT_XML_DECLARATION = "omit-xml-declaration";
-        public const string STANDALONE = "standalone"; // currently ignored
-        public const string VERSION = "version";
-
-        ////////////////////////////////////////////////////////////////////
-        // Internal state.
-        ////////////////////////////////////////////////////////////////////
-
-
-        private readonly string[] _bools = {
-            "checked",
-            "compact",
-            "declare",
-            "defer",
-            "disabled",
-            "ismap",
-            "multiple",
-            "nohref",
-            "noresize",
-            "noshade",
-            "nowrap",
-            "readonly",
-            "selected"
-        };
-
-        private Hashtable prefixTable;
-        private Hashtable forcedDeclTable;
-        private Hashtable doneDeclTable;
-        private int elementLevel = 0;
-        private TextWriter output;
-        private NamespaceSupport nsSupport;
-        private int prefixCounter = 0;
-        private IDictionary<string, string> outputProperties;
-        private bool unicodeMode = false;
-        private string outputEncoding = "";
-        private bool htmlMode = false;
-        private bool forceDTD = false;
-        private bool hasOutputDTD = false;
-        private string overridePublic = null;
-        private string overrideSystem = null;
-        private string version = null;
-        private string standalone = null;
-        private bool cdataElement = false;
-    }
-}


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