http://git-wip-us.apache.org/repos/asf/lucenenet/blob/5594d5bb/src/Lucene.Net.Benchmark/Support/TagSoup/XMLReader.cs
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diff --git a/src/Lucene.Net.Benchmark/Support/TagSoup/XMLReader.cs
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@@ -1,1567 +0,0 @@
-// XMLWriter.java - serialize an XML document.
-// Written by David Megginson, [email protected]
-// 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>
- /// <?xml version="1.0" standalone="yes"?>
- /// <greeting>Hello, world!</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>
- /// <item>1</item><item>3</item><item>3</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>
- /// <?xml version="1.0" standalone="yes"?>
- /// <_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>
- /// <?xml version="1.0" standalone="yes"?>
- /// <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>
- /// <?xml version="1.0" standalone="yes"?>
- /// <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>
- /// <xml version="1.0" standalone="yes"?>
- /// <rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";>
- /// <rdf:Description about="http://www.foo.com/ids/books/12345";>
- /// <dc:title xmlns:dc="http://www.purl.org/dc/";>A Dark
Night</dc:title>
- /// <dc:creator xmlns:dc="http://www.purl.org/dc/";>Jane
Smith</dc:title>
- /// <dc:date
xmlns:dc="http://www.purl.org/dc/";>2000-09-09</dc:title>
- /// </rdf:Description>
- /// </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>
- /// <xml version="1.0" standalone="yes"?>
- /// <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";
- /// xmlns:dc="http://www.purl.org/dc/";>
- /// <rdf:Description about="http://www.foo.com/ids/books/12345";>
- /// <dc:title>A Dark Night</dc:title>
- /// <dc:creator>Jane Smith</dc:title>
- /// <dc:date>2000-09-09</dc:title>
- /// </rdf:Description>
- /// </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, [email protected]</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("&");
- break;
- case '<':
- Write("<");
- break;
- case '>':
- Write(">");
- break;
- case '\"':
- if (isAttVal)
- {
- Write(""");
- }
- 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;
- }
-}
