-// -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
//
-// System.Xml.XmlTextReader.cs
+// System.Xml.XmlTextReader
//
// Author:
// Jason Diamond (jason@injektilo.org)
+// Adam Treat (manyoso@yahoo.com)
//
-// (C) 2001 Jason Diamond http://injektilo.org/
+// (C) 2001, 2002 Jason Diamond http://injektilo.org/
//
// FIXME:
// instructions, and comments are OK.
//
// It barfs on DOCTYPE declarations.
+// => No barfing, but parsing is incomplete.
+// DTD nodes are not still created.
//
// There's also no checking being done for either well-formedness
// or validity.
//
-// ParserContext and NameTables aren't being used yet.
+// NameTables aren't being used everywhere yet.
//
// Some thought needs to be given to performance. There's too many
// strings being allocated.
//
-// None of the MoveTo methods have been implemented yet.
+// Some of the MoveTo methods haven't been implemented yet.
//
// LineNumber and LinePosition aren't being tracked.
//
// xml:space, xml:lang, and xml:base aren't being tracked.
//
-// Depth isn't being tracked.
using System;
using System.Collections;
using System.IO;
-using System.Net;
using System.Text;
namespace System.Xml
{
public class XmlTextReader : XmlReader, IXmlLineInfo
{
- // constructors
+ WhitespaceHandling whitespaceHandling = WhitespaceHandling.All;
+ #region Constructors
- protected XmlTextReader()
+ protected XmlTextReader ()
{
- Init();
}
- public XmlTextReader(Stream input)
+ public XmlTextReader (Stream input)
+ : this (new StreamReader (input))
{
- Init();
- reader = new StreamReader(
- input,
- Encoding.UTF8,
- true);
}
- public XmlTextReader(string url)
+ public XmlTextReader (string url)
+ : this(url, new NameTable ())
{
- Init();
- WebClient client = new WebClient();
- reader = new StreamReader(
- client.OpenRead(url),
- Encoding.UTF8,
- true);
}
- public XmlTextReader(TextReader input)
+ public XmlTextReader (TextReader input)
+ : this (input, new NameTable ())
{
- Init();
- reader = input;
}
- public XmlTextReader(Stream input, XmlNameTable nameTable)
- {
- this.nameTable = nameTable;
+ protected XmlTextReader (XmlNameTable nt)
+ : this (String.Empty, null, XmlNodeType.None, null)
+ {
+ }
- // TODO: implement me.
- throw new NotImplementedException();
+ public XmlTextReader (Stream input, XmlNameTable nt)
+ : this(new StreamReader (input), nt)
+ {
}
- public XmlTextReader(string baseURI, Stream input)
+ public XmlTextReader (string url, Stream input)
+ : this (url, new StreamReader (input))
{
- // TODO: implement me.
- throw new NotImplementedException();
}
- public XmlTextReader(string baseURI, TextReader input)
+ public XmlTextReader (string url, TextReader input)
+ : this (url, input, new NameTable ())
{
- // TODO: implement me.
- throw new NotImplementedException();
}
- public XmlTextReader(string url, XmlNameTable nameTable)
+ [MonoTODO("Non-filename-url must be supported. Waiting for WebClient")]
+ public XmlTextReader (string url, XmlNameTable nt)
+ // : this(url, new StreamReader ((Stream)new XmlUrlResolver ().GetEntity (new Uri (url), null, typeof(Stream))), nt)
+ : this (url, new StreamReader (url), nt)
{
- this.nameTable = nameTable;
-
- // TODO: implement me.
- throw new NotImplementedException();
}
- public XmlTextReader(
- TextReader input,
- XmlNameTable nameTable)
+ public XmlTextReader (TextReader input, XmlNameTable nt)
+ : this(String.Empty, input, nt)
{
- this.nameTable = nameTable;
-
- // TODO: implement me.
- throw new NotImplementedException();
}
- public XmlTextReader(
- Stream inputFragment,
- XmlNodeType fragmentType,
- XmlParserContext context)
+ public XmlTextReader (Stream xmlFragment, XmlNodeType fragType, XmlParserContext context)
+ : this (String.Empty, new StreamReader (xmlFragment), fragType, context)
{
- // TODO: implement me.
- throw new NotImplementedException();
}
- public XmlTextReader(
- string baseURI,
- Stream input,
- XmlNameTable nameTable)
+ public XmlTextReader (string url, Stream input, XmlNameTable nt)
+ : this (url, new StreamReader (input), nt)
{
- this.nameTable = nameTable;
+ }
- // TODO: implement me.
- throw new NotImplementedException();
+ public XmlTextReader (string url, TextReader input, XmlNameTable nt)
+ : this (url, input, XmlNodeType.Document, new XmlParserContext (nt, new XmlNamespaceManager (nt), null, XmlSpace.None))
+ {
}
- public XmlTextReader(
- string baseURI,
- TextReader input,
- XmlNameTable nameTable)
+ [MonoTODO("TODO as same as private XmlTextReader(TextReader, XmlNodeType, XmlParserContext)")]
+ public XmlTextReader (string xmlFragment, XmlNodeType fragType, XmlParserContext context)
+ : this (String.Empty, new StringReader (xmlFragment), fragType, context)
{
- this.nameTable = nameTable;
- // TODO: implement me.
- throw new NotImplementedException();
}
- public XmlTextReader(
- string fragment,
- XmlNodeType fragmentType,
- XmlParserContext context)
+ // TODO still remains as described at head of this file,
+ // but it might not be TODO of the constructors...
+ XmlTextReader (string url, TextReader fragment, XmlNodeType fragType, XmlParserContext context)
{
- // TODO: implement me.
- throw new NotImplementedException();
+ this.SetReaderContext(url, context);
+ this.SetReaderFragment(fragment, fragType);
}
- // properties
+ #endregion
+
+ #region Properties
public override int AttributeCount
{
- get
- {
- return attributes.Count;
- }
+ get { return attributes.Count; }
}
public override string BaseURI
{
- get
- {
- // TODO: implement me.
- return null;
- }
- }
-
- public override bool CanResolveEntity
- {
- get
- {
- // XmlTextReaders don't resolve entities.
- return false;
- }
+ get { return parserContext.BaseURI; }
}
public override int Depth
{
- get
- {
- // TODO: implement me.
- return depth > 0 ? depth : 0;
+ get {
+ return elementDepth;
}
}
public Encoding Encoding
{
- get
- {
- // TODO: implement me.
- return null;
- }
+ get { return parserContext.Encoding; }
}
public override bool EOF
public override bool HasValue
{
- get
- {
- return value != String.Empty;
- }
+ get { return value != String.Empty; }
}
public override bool IsDefault
public override bool IsEmptyElement
{
- get
- {
- return isEmptyElement;
- }
+ get { return isEmptyElement; }
}
- public override string this[int i]
+ public override string this [int i]
{
- get
- {
- return GetAttribute(i);
- }
+ get { return GetAttribute (i); }
}
- public override string this[string name]
+ public override string this [string name]
{
- get
- {
- return GetAttribute(name);
- }
+ get { return GetAttribute (name); }
}
- public override string this[
- string localName,
- string namespaceName]
+ public override string this [string localName, string namespaceName]
{
- get
- {
- return GetAttribute(localName, namespaceName);
- }
+ get { return GetAttribute (localName, namespaceName); }
}
public int LineNumber
{
- get
- {
- // TODO: implement me.
- return 0;
- }
+ get { return line; }
}
public int LinePosition
{
- get
- {
- // TODO: implement me.
- return 0;
- }
+ get { return column; }
}
public override string LocalName
{
- get
- {
- return localName;
- }
+ get { return localName; }
}
public override string Name
{
- get
- {
- return name;
- }
+ get { return name; }
}
+ [MonoTODO]
public bool Namespaces
{
- get
- {
- // TODO: implement me.
- return false;
- }
-
- set
- {
- // TODO: implement me.
- }
+ get { throw new NotImplementedException (); }
+ set { throw new NotImplementedException (); }
}
public override string NamespaceURI
{
- get
- {
- return namespaceURI;
- }
+ get { return namespaceURI; }
}
public override XmlNameTable NameTable
{
- get
- {
- // TODO: implement me.
- return null;
- }
+ get { return parserContext.NameTable; }
}
public override XmlNodeType NodeType
{
- get
- {
- return nodeType;
- }
+ get { return nodeType; }
}
+ [MonoTODO]
public bool Normalization
{
- get
- {
- // TODO: implement me.
- return false;
- }
-
- set
- {
- // TODO: implement me.
- }
+ get { throw new NotImplementedException (); }
+ set { throw new NotImplementedException (); }
}
public override string Prefix
{
- get
- {
- return prefix;
- }
+ get { return prefix; }
}
+ [MonoTODO]
public override char QuoteChar
{
- get
- {
- // TODO: implement me.
- return '"';
- }
+ get { throw new NotImplementedException (); }
}
public override ReadState ReadState
{
- get
- {
- return readState;
- }
+ get { return readState; }
}
public override string Value
{
- get
- {
- return value;
- }
+ get { return value; }
}
public WhitespaceHandling WhitespaceHandling
{
- get
- {
- // TODO: implement me.
- return WhitespaceHandling.All;
- }
-
- set
- {
- // TODO: implement me.
- }
+ get { return whitespaceHandling; }
+ set { whitespaceHandling = value; }
}
+ [MonoTODO]
public override string XmlLang
{
- get
- {
- // TODO: implement me.
- return null;
- }
+ get { throw new NotImplementedException (); }
}
+ [MonoTODO]
public XmlResolver XmlResolver
{
- set
- {
- // TODO: implement me.
- }
+ set { throw new NotImplementedException (); }
}
+ [MonoTODO]
public override XmlSpace XmlSpace
{
- get
- {
- // TODO: implement me.
- return XmlSpace.Default;
- }
+ get { throw new NotImplementedException (); }
}
- // methods
+ #endregion
+
+ #region Methods
- public override void Close()
+ [MonoTODO]
+ public override void Close ()
{
readState = ReadState.Closed;
}
- public override string GetAttribute(int i)
+ [MonoTODO]
+ public override string GetAttribute (int i)
{
- // TODO: implement me.
- return null;
+ if (i > attributes.Count)
+ throw new ArgumentOutOfRangeException ("i is smaller than AttributeCount");
+ else
+ throw new NotImplementedException ();
}
- public override string GetAttribute(string name)
+ public override string GetAttribute (string name)
{
- return (string)attributes[name];
+ return attributes.ContainsKey (name) ?
+ attributes [name] as string : String.Empty;
}
- public override string GetAttribute(
- string localName,
- string namespaceURI)
+ public override string GetAttribute (string localName, string namespaceURI)
{
foreach (DictionaryEntry entry in attributes)
{
- string thisName = (string)entry.Key;
+ string thisName = entry.Key as string;
- int indexOfColon = thisName.IndexOf(':');
+ int indexOfColon = thisName.IndexOf (':');
- if (indexOfColon != -1)
- {
- string thisLocalName = thisName.Substring(indexOfColon + 1);
+ if (indexOfColon != -1) {
+ string thisLocalName = thisName.Substring (indexOfColon + 1);
- if (localName == thisLocalName)
- {
- string thisPrefix = thisName.Substring(0, indexOfColon);
- string thisNamespaceURI = LookupNamespace(thisPrefix);
+ if (localName == thisLocalName) {
+ string thisPrefix = thisName.Substring (0, indexOfColon);
+ string thisNamespaceURI = LookupNamespace (thisPrefix);
if (namespaceURI == thisNamespaceURI)
- {
- return (string)attributes[thisName];
- }
+ return attributes.ContainsKey (thisName) ?
+ attributes [thisName] as string : String.Empty;
}
- }
+ } else if (localName == "xmlns" && namespaceURI == "http://www.w3.org/2000/xmlns/" && thisName == "xmlns")
+ return attributes.ContainsKey (thisName) ?
+ attributes [thisName] as string : String.Empty;
}
return String.Empty;
}
- public TextReader GetRemainder()
+ [MonoTODO]
+ public TextReader GetRemainder ()
{
- // TODO: implement me.
- return null;
+ throw new NotImplementedException ();
}
- // Why does this use explicit interface implementation?
- bool IXmlLineInfo.HasLineInfo()
+ [MonoTODO]
+ bool IXmlLineInfo.HasLineInfo ()
{
- // TODO: implement me.
return false;
}
- public override string LookupNamespace(string prefix)
+ public override string LookupNamespace (string prefix)
{
- return namespaceManager.LookupNamespace(prefix);
+ return parserContext.NamespaceManager.LookupNamespace (prefix);
}
- public override void MoveToAttribute(int i)
+ [MonoTODO]
+ public override void MoveToAttribute (int i)
{
- // TODO: implement me.
+ throw new NotImplementedException ();
}
- public override bool MoveToAttribute(string name)
+ public override bool MoveToAttribute (string name)
{
- // TODO: implement me.
- return false;
+ MoveToElement ();
+ bool match = false;
+
+ if (attributes == null)
+ return false;
+
+ if (orderedAttributesEnumerator == null) {
+ SaveProperties ();
+ orderedAttributesEnumerator = orderedAttributes.GetEnumerator ();
+ }
+
+ while (orderedAttributesEnumerator.MoveNext ()) {
+ if(name == orderedAttributesEnumerator.Current as string) {
+ match = true;
+ break;
+ }
+ }
+
+ if (match) {
+
+ string value = attributes [name] as string;
+ SetProperties (
+ XmlNodeType.Attribute, // nodeType
+ name, // name
+ false, // isEmptyElement
+ value, // value
+ false // clearAttributes
+ );
+ }
+
+ return match;
}
- public override bool MoveToAttribute(
- string localName,
- string namespaceName)
+ [MonoTODO]
+ public override bool MoveToAttribute (string localName, string namespaceName)
{
- // TODO: implement me.
- return false;
+ throw new NotImplementedException ();
}
- public override bool MoveToElement()
+ public override bool MoveToElement ()
{
- // TODO: implement me.
+ if (orderedAttributesEnumerator != null) {
+ orderedAttributesEnumerator = null;
+ RestoreProperties ();
+ return true;
+ }
+
return false;
}
- public override bool MoveToFirstAttribute()
+ public override bool MoveToFirstAttribute ()
{
- // TODO: implement me.
- return false;
+ MoveToElement ();
+ return MoveToNextAttribute ();
}
- public override bool MoveToNextAttribute()
+ public override bool MoveToNextAttribute ()
{
- // TODO: implement me.
+ if (attributes == null)
+ return false;
+
+ if (orderedAttributesEnumerator == null) {
+ SaveProperties ();
+ orderedAttributesEnumerator = orderedAttributes.GetEnumerator ();
+ }
+
+ if (orderedAttributesEnumerator.MoveNext ()) {
+ string name = orderedAttributesEnumerator.Current as string;
+ string value = attributes [name] as string;
+ SetProperties (
+ XmlNodeType.Attribute, // nodeType
+ name, // name
+ false, // isEmptyElement
+ value, // value
+ false // clearAttributes
+ );
+ return true;
+ }
+
return false;
}
- public override bool Read()
+ public override bool Read ()
{
bool more = false;
readState = ReadState.Interactive;
- more = ReadContent();
+ more = ReadContent ();
return more;
}
- public override bool ReadAttributeValue()
+ public override bool ReadAttributeValue ()
{
- // TODO: implement me.
- return false;
+ // reading attribute value phase now stopped
+ if(attributeStringCurrentPosition < 0 ||
+ attributeString.Length < attributeStringCurrentPosition) {
+ attributeStringCurrentPosition = 0;
+ attributeString = String.Empty;
+ return false;
+ }
+
+ // If not started, then initialize attributeString when parsing is at start.
+ if(attributeStringCurrentPosition == 0)
+ attributeString = value;
+
+ bool returnEntity = false;
+ value = String.Empty;
+ int nextPosition = attributeString.IndexOf ('&',
+ attributeStringCurrentPosition);
+
+ // if attribute string starts from '&' then it may be (unparsable) entity reference.
+ if(nextPosition == 0) {
+ string parsed = ReadAttributeValueEntityReference ();
+ if(parsed == null) {
+ // return entity (It is only this case to return entity reference.)
+ int endEntityPosition = attributeString.IndexOf (';',
+ attributeStringCurrentPosition);
+ SetProperties (XmlNodeType.EntityReference,
+ attributeString.Substring (attributeStringCurrentPosition + 1,
+ endEntityPosition - attributeStringCurrentPosition - 1),
+ false,
+ String.Empty,
+ false);
+ attributeStringCurrentPosition = endEntityPosition + 1;
+
+ return true;
+ }
+ else
+ value += parsed;
+ }
+
+ // Other case always set text node.
+ while(!returnEntity) {
+ nextPosition = attributeString.IndexOf ('&', attributeStringCurrentPosition);
+ if(nextPosition < 0) {
+ // Reached to the end of value string.
+ value += attributeString.Substring (attributeStringCurrentPosition);
+ attributeStringCurrentPosition = -1;
+ break;
+ } else if(nextPosition == attributeStringCurrentPosition) {
+ string parsed = ReadAttributeValueEntityReference ();
+ if(parsed != null)
+ value += parsed;
+ else {
+ // Found that an entity reference starts from this point.
+ // Then once stop to parse attribute value and then return text.
+ value += attributeString.Substring (attributeStringCurrentPosition,
+ nextPosition - attributeStringCurrentPosition);
+ break;
+ }
+ } else {
+ value += attributeString.Substring (attributeStringCurrentPosition,
+ nextPosition - attributeStringCurrentPosition);
+ attributeStringCurrentPosition = nextPosition;
+ break;
+ }
+ }
+
+ SetProperties(XmlNodeType.Text,
+ "#text",
+ false,
+ value,
+ false);
+
+ return true;
}
- public int ReadBase64(byte[] buffer, int offset, int length)
+ [MonoTODO]
+ public int ReadBase64 (byte [] buffer, int offset, int length)
{
- // TODO: implement me.
- return 0;
+ throw new NotImplementedException ();
}
- public int ReadBinHex(byte[] buffer, int offset, int length)
+ [MonoTODO]
+ public int ReadBinHex (byte [] buffer, int offset, int length)
{
- // TODO: implement me.
- return 0;
+ throw new NotImplementedException ();
}
- public int ReadChars(char[] buffer, int offset, int length)
+ [MonoTODO]
+ public int ReadChars (char [] buffer, int offset, int length)
{
- // TODO: implement me.
- return 0;
+ throw new NotImplementedException ();
}
- public override string ReadInnerXml()
+ [MonoTODO]
+ public override string ReadInnerXml ()
{
- // TODO: implement me.
- return null;
+ // Still need a Well Formedness check.
+ // Will wait for Validating reader ;-)
+ if (NodeType == XmlNodeType.Attribute) {
+ return Value;
+ } else {
+ saveToXmlBuffer = true;
+ string startname = this.Name;
+ string endname = string.Empty;
+ readState = ReadState.Interactive;
+
+ while (startname != endname) {
+ ReadContent ();
+ endname = this.Name;
+ }
+
+ xmlBuffer.Replace (currentTag.ToString (), "");
+ saveToXmlBuffer = false;
+ string InnerXml = xmlBuffer.ToString ();
+ xmlBuffer.Length = 0;
+ return InnerXml;
+ }
}
- public override string ReadOuterXml()
+ [MonoTODO]
+ public override string ReadOuterXml ()
{
- // TODO: implement me.
- return null;
+ if (NodeType == XmlNodeType.Attribute) {
+ return Name + "=\"" + Value + "\"";
+ } else {
+ saveToXmlBuffer = true;
+ xmlBuffer.Append (currentTag.ToString ());
+ string startname = this.Name;
+ string endname = string.Empty;
+ readState = ReadState.Interactive;
+
+ while (startname != endname) {
+ ReadContent ();
+ endname = this.Name;
+ }
+ saveToXmlBuffer = false;
+ string OuterXml = xmlBuffer.ToString ();
+ xmlBuffer.Length = 0;
+ return OuterXml;
+ }
}
- public override string ReadString()
+ [MonoTODO]
+ public override string ReadString ()
{
- // TODO: implement me.
- return null;
+ throw new NotImplementedException ();
}
- public override void ResolveEntity()
+ [MonoTODO]
+ public void ResetState ()
+ {
+ throw new NotImplementedException ();
+ }
+
+ public override void ResolveEntity ()
{
// XmlTextReaders don't resolve entities.
- throw new InvalidOperationException("XmlTextReaders don't resolve entities.");
+ throw new InvalidOperationException ("XmlTextReaders don't resolve entities.");
}
- // privates
+ #endregion
+
+ #region Internals
+ internal string publicId;
+ internal string systemId;
+
+ internal void SetReaderContext (string url, XmlParserContext context)
+ {
+ parserContext = context;
+ parserContext.BaseURI = url;
+ Init ();
+ }
+
+ internal void SetReaderFragment(TextReader fragment, XmlNodeType fragType)
+ {
+ this.reader = fragment;
+ can_seek = fragment != null && fragment.Peek () != -1;
+/* for future use
+ switch(fragType)
+ {
+ case XmlNodeType.Attribute: // attribute content
+ parserContext.InputState = XmlParserInputState.AttributeValue;
+ break;
+ case XmlNodeType.DocumentFragment: // element content
+ parserContext.InputState = XmlParserInputState.Content;
+ break;
+ case XmlNodeType.Element: // one element
+ parserContext.InputState = XmlParserInputState.StartTag;
+ break;
+ case XmlNodeType.Document: // document content
+ parserContext.InputState = XmlParserInputState.Start;
+ break;
+ default:
+ throw new InvalidOperationException("setting this xml node type not allowed.");
+ }
+*/
+ }
+ #endregion
+
+ #region Privates
+
+ private XmlParserContext parserContext;
private TextReader reader;
private ReadState readState;
private int depth;
+ private int elementDepth;
private bool depthDown;
- private XmlNameTable nameTable;
- private XmlNamespaceManager namespaceManager;
private bool popScope;
private XmlNodeType nodeType;
private string namespaceURI;
private bool isEmptyElement;
private string value;
+
+ private XmlNodeType saveNodeType;
+ private string saveName;
+ private string savePrefix;
+ private string saveLocalName;
+ private string saveNamespaceURI;
+ private bool saveIsEmptyElement;
+
private Hashtable attributes;
+ private ArrayList orderedAttributes;
+ private IEnumerator orderedAttributesEnumerator;
private bool returnEntityReference;
private string entityReferenceName;
- private char[] nameBuffer;
+ private char [] nameBuffer;
private int nameLength;
private int nameCapacity;
private const int initialNameCapacity = 256;
- private char[] valueBuffer;
+ private char [] valueBuffer;
private int valueLength;
private int valueCapacity;
private const int initialValueCapacity = 8192;
- private void Init()
- {
- namespaceManager = new XmlNamespaceManager(nameTable);
- popScope = false;
+ private StringBuilder xmlBuffer; // This is for Read(Inner|Outer)Xml
+ private StringBuilder currentTag; // A buffer for ReadContent for ReadOuterXml
+ private bool saveToXmlBuffer;
+ private int line = 1;
+ private int column = 1;
+ private bool has_peek;
+ private bool can_seek;
+ private int peek_char;
+ private string attributeString = String.Empty;
+ private int attributeStringCurrentPosition;
+
+ private void Init ()
+ {
readState = ReadState.Initial;
- depth = -1;
+ depth = 0;
depthDown = false;
+ popScope = false;
+
nodeType = XmlNodeType.None;
name = String.Empty;
prefix = String.Empty;
localName = string.Empty;
isEmptyElement = false;
value = String.Empty;
- attributes = new Hashtable();
-
+
+ attributes = new Hashtable ();
+ orderedAttributes = new ArrayList ();
+ orderedAttributesEnumerator = null;
+
returnEntityReference = false;
entityReferenceName = String.Empty;
- nameBuffer = new char[initialNameCapacity];
+ nameBuffer = new char [initialNameCapacity];
nameLength = 0;
nameCapacity = initialNameCapacity;
- valueBuffer = new char[initialValueCapacity];
+ valueBuffer = new char [initialValueCapacity];
valueLength = 0;
valueCapacity = initialValueCapacity;
+
+ xmlBuffer = new StringBuilder ();
+ currentTag = new StringBuilder ();
}
// Use this method rather than setting the properties
// be changed in harmony with each other. Maybe the
// fields should be in a seperate class to help enforce
// this.
- private void SetProperties(
+ private void SetProperties (
XmlNodeType nodeType,
string name,
bool isEmptyElement,
this.name = name;
this.isEmptyElement = isEmptyElement;
this.value = value;
+ this.elementDepth = depth;
if (clearAttributes)
- {
- ClearAttributes();
- }
+ ClearAttributes ();
- int indexOfColon = name.IndexOf(':');
+ int indexOfColon = name.IndexOf (':');
- if (indexOfColon == -1)
- {
+ if (indexOfColon == -1) {
prefix = String.Empty;
localName = name;
- }
- else
- {
- prefix = name.Substring(0, indexOfColon);
- localName = name.Substring(indexOfColon + 1);
+ } else {
+ prefix = name.Substring (0, indexOfColon);
+ localName = name.Substring (indexOfColon + 1);
}
- namespaceURI = LookupNamespace(prefix);
+ namespaceURI = LookupNamespace (prefix);
}
- private void AddAttribute(string name, string value)
+ private void SaveProperties ()
{
- attributes.Add(name, value);
+ saveNodeType = nodeType;
+ saveName = name;
+ savePrefix = prefix;
+ saveLocalName = localName;
+ saveNamespaceURI = namespaceURI;
+ saveIsEmptyElement = isEmptyElement;
+ // An element's value is always String.Empty.
}
- private void ClearAttributes()
+ private void RestoreProperties ()
{
- if (attributes.Count > 0)
- {
- attributes.Clear();
+ nodeType = saveNodeType;
+ name = saveName;
+ prefix = savePrefix;
+ localName = saveLocalName;
+ namespaceURI = saveNamespaceURI;
+ isEmptyElement = saveIsEmptyElement;
+ value = String.Empty;
+ }
+
+ private void AddAttribute (string name, string value)
+ {
+ attributes.Add (name, value);
+ orderedAttributes.Add (name);
+ }
+
+ private void ClearAttributes ()
+ {
+ if (attributes.Count > 0) {
+ attributes.Clear ();
+ orderedAttributes.Clear ();
}
+
+ orderedAttributesEnumerator = null;
}
- private int PeekChar()
+ private int PeekChar ()
{
- return reader.Peek();
+ if (can_seek)
+ return reader.Peek ();
+
+ if (has_peek)
+ return peek_char;
+
+ peek_char = reader.Read ();
+ has_peek = true;
+ return peek_char;
}
- private int ReadChar()
+ private int ReadChar ()
{
- return reader.Read();
+ int ch;
+ if (has_peek) {
+ ch = peek_char;
+ has_peek = false;
+ } else {
+ ch = reader.Read ();
+ }
+
+ if (ch == '\n') {
+ line++;
+ column = 1;
+ } else {
+ column++;
+ }
+ if (saveToXmlBuffer) {
+ xmlBuffer.Append ((char) ch);
+ }
+ currentTag.Append ((char) ch);
+ return ch;
}
// This should really keep track of some state so
// that it's not possible to have more than one document
// element or text outside of the document element.
- private bool ReadContent()
+ private bool ReadContent ()
{
- bool more = false;
-
- if (popScope)
- {
- namespaceManager.PopScope();
+ currentTag.Length = 0;
+ if (popScope) {
+ parserContext.NamespaceManager.PopScope ();
popScope = false;
}
- if (depthDown)
- {
- --depth;
- }
-
- if (returnEntityReference)
- {
- ++depth;
- SetEntityReferenceProperties();
- more = true;
- }
- else
- {
- switch (PeekChar())
+ if (returnEntityReference) {
+ SetEntityReferenceProperties ();
+ } else {
+ switch (PeekChar ())
{
case '<':
- ReadChar();
- ReadTag();
- more = true;
+ ReadChar ();
+ ReadTag ();
break;
+ case '\r':
+ if (whitespaceHandling == WhitespaceHandling.All ||
+ whitespaceHandling == WhitespaceHandling.Significant)
+ return ReadWhitespace ();
+
+ ReadChar ();
+ return ReadContent ();
+ case '\n':
+ if (whitespaceHandling == WhitespaceHandling.All ||
+ whitespaceHandling == WhitespaceHandling.Significant)
+ return ReadWhitespace ();
+
+ ReadChar ();
+ return ReadContent ();
+ case ' ':
+ if (whitespaceHandling == WhitespaceHandling.All ||
+ whitespaceHandling == WhitespaceHandling.Significant)
+ return ReadWhitespace ();
+
+ SkipWhitespace ();
+ return ReadContent ();
case -1:
readState = ReadState.EndOfFile;
- SetProperties(
+ SetProperties (
XmlNodeType.None, // nodeType
String.Empty, // name
false, // isEmptyElement
String.Empty, // value
true // clearAttributes
);
- more = false;
break;
default:
- ReadText();
- more = true;
+ ReadText (true);
break;
}
}
-
- return more;
+ return this.ReadState != ReadState.EndOfFile;
}
- private void SetEntityReferenceProperties()
+ private void SetEntityReferenceProperties ()
{
- SetProperties(
+ SetProperties (
XmlNodeType.EntityReference, // nodeType
entityReferenceName, // name
false, // isEmptyElement
}
// The leading '<' has already been consumed.
- private void ReadTag()
+ private void ReadTag ()
{
- switch (PeekChar())
+ switch (PeekChar ())
{
case '/':
- ReadChar();
- ReadEndTag();
+ ReadChar ();
+ ReadEndTag ();
break;
case '?':
- ReadChar();
- ReadProcessingInstruction();
+ ReadChar ();
+ ReadProcessingInstruction ();
break;
case '!':
- ReadChar();
- ReadDeclaration();
+ ReadChar ();
+ ReadDeclaration ();
break;
default:
- ReadStartTag();
+ ReadStartTag ();
break;
}
}
// The leading '<' has already been consumed.
- private void ReadStartTag()
+ private void ReadStartTag ()
{
- namespaceManager.PushScope();
+ parserContext.NamespaceManager.PushScope ();
- string name = ReadName();
- SkipWhitespace();
+ string name = ReadName ();
+ SkipWhitespace ();
bool isEmptyElement = false;
- ClearAttributes();
+ ClearAttributes ();
- if (XmlChar.IsFirstNameChar(PeekChar()))
- {
- ReadAttributes();
- }
+ if (XmlChar.IsFirstNameChar (PeekChar ()))
+ ReadAttributes ();
- if (PeekChar() == '/')
- {
- ReadChar();
+ if (PeekChar () == '/') {
+ ReadChar ();
isEmptyElement = true;
depthDown = true;
popScope = true;
}
- Expect('>');
-
- ++depth;
+ Expect ('>');
- SetProperties(
+ SetProperties (
XmlNodeType.Element, // nodeType
name, // name
isEmptyElement, // isEmptyElement
String.Empty, // value
false // clearAttributes
);
+
+ if (!depthDown)
+ ++depth;
+ else
+ depthDown = false;
+
}
// The reader is positioned on the first character
// of the element's name.
- private void ReadEndTag()
+ private void ReadEndTag ()
{
- string name = ReadName();
- SkipWhitespace();
- Expect('>');
+ string name = ReadName ();
+ SkipWhitespace ();
+ Expect ('>');
--depth;
- SetProperties(
+ SetProperties (
XmlNodeType.EndElement, // nodeType
name, // name
false, // isEmptyElement
popScope = true;
}
- private void AppendNameChar(int ch)
+ private void AppendNameChar (int ch)
{
- CheckNameCapacity();
- nameBuffer[nameLength++] = (char)ch;
+ CheckNameCapacity ();
+ nameBuffer [nameLength++] = (char)ch;
}
- private void CheckNameCapacity()
+ private void CheckNameCapacity ()
{
- if (nameLength == nameCapacity)
- {
+ if (nameLength == nameCapacity) {
nameCapacity = nameCapacity * 2;
- char[] oldNameBuffer = nameBuffer;
- nameBuffer = new char[nameCapacity];
- Array.Copy(oldNameBuffer, nameBuffer, nameLength);
+ char [] oldNameBuffer = nameBuffer;
+ nameBuffer = new char [nameCapacity];
+ Array.Copy (oldNameBuffer, nameBuffer, nameLength);
}
}
- private string CreateNameString()
+ private string CreateNameString ()
{
- return new String(nameBuffer, 0, nameLength);
+ return new String (nameBuffer, 0, nameLength);
}
- private void AppendValueChar(int ch)
+ private void AppendValueChar (int ch)
{
- CheckValueCapacity();
- valueBuffer[valueLength++] = (char)ch;
+ CheckValueCapacity ();
+ valueBuffer [valueLength++] = (char)ch;
}
- private void CheckValueCapacity()
+ private void CheckValueCapacity ()
{
- if (valueLength == valueCapacity)
- {
+ if (valueLength == valueCapacity) {
valueCapacity = valueCapacity * 2;
- char[] oldValueBuffer = valueBuffer;
- valueBuffer = new char[valueCapacity];
- Array.Copy(oldValueBuffer, valueBuffer, valueLength);
+ char [] oldValueBuffer = valueBuffer;
+ valueBuffer = new char [valueCapacity];
+ Array.Copy (oldValueBuffer, valueBuffer, valueLength);
}
}
- private string CreateValueString()
+ private string CreateValueString ()
{
- return new String(valueBuffer, 0, valueLength);
+ return new String (valueBuffer, 0, valueLength);
}
// The reader is positioned on the first character
// of the text.
- private void ReadText()
+ private void ReadText (bool cleanValue)
{
- valueLength = 0;
+ if (cleanValue)
+ valueLength = 0;
- int ch = PeekChar();
+ int ch = PeekChar ();
- while (ch != '<' && ch != -1)
- {
- if (ch == '&')
- {
- ReadChar();
-
- if (ReadReference(false))
- {
+ while (ch != '<' && ch != -1) {
+ if (ch == '&') {
+ ReadChar ();
+ if (ReadReference (false))
break;
- }
- }
- else
- {
- AppendValueChar(ReadChar());
- }
+ } else
+ AppendValueChar (ReadChar ());
- ch = PeekChar();
- }
-
- if (returnEntityReference && valueLength == 0)
- {
- ++depth;
- SetEntityReferenceProperties();
+ ch = PeekChar ();
}
- else
- {
- if (depth >= 0)
- {
- ++depth;
- depthDown = true;
- }
- SetProperties(
+ if (returnEntityReference && valueLength == 0) {
+ SetEntityReferenceProperties ();
+ } else {
+ SetProperties (
XmlNodeType.Text, // nodeType
String.Empty, // name
false, // isEmptyElement
- CreateValueString(), // value
+ CreateValueString (), // value
true // clearAttributes
);
}
// character reference or one of the predefined entities.
// This allows the ReadText method to break so that the
// next call to Read will return the EntityReference node.
- private bool ReadReference(bool ignoreEntityReferences)
+ private bool ReadReference (bool ignoreEntityReferences)
{
- if (PeekChar() == '#')
- {
- ReadChar();
- ReadCharacterReference();
- }
- else
- {
- ReadEntityReference(ignoreEntityReferences);
- }
+ if (PeekChar () == '#') {
+ ReadChar ();
+ ReadCharacterReference ();
+ } else
+ ReadEntityReference (ignoreEntityReferences);
return returnEntityReference;
}
- private void ReadCharacterReference()
+ private void ReadCharacterReference ()
{
int value = 0;
- if (PeekChar() == 'x')
- {
- ReadChar();
+ if (PeekChar () == 'x') {
+ ReadChar ();
- while (PeekChar() != ';' && PeekChar() != -1)
- {
- int ch = ReadChar();
+ while (PeekChar () != ';' && PeekChar () != -1) {
+ int ch = ReadChar ();
if (ch >= '0' && ch <= '9')
- {
value = (value << 4) + ch - '0';
- }
else if (ch >= 'A' && ch <= 'F')
- {
value = (value << 4) + ch - 'A' + 10;
- }
else if (ch >= 'a' && ch <= 'f')
- {
value = (value << 4) + ch - 'a' + 10;
- }
else
- {
- throw new Exception(
- String.Format(
+ throw new XmlException (
+ String.Format (
"invalid hexadecimal digit: {0} (#x{1:X})",
(char)ch,
ch));
- }
}
- }
- else
- {
- while (PeekChar() != ';' && PeekChar() != -1)
- {
- int ch = ReadChar();
+ } else {
+ while (PeekChar () != ';' && PeekChar () != -1) {
+ int ch = ReadChar ();
if (ch >= '0' && ch <= '9')
- {
value = value * 10 + ch - '0';
- }
else
- {
- throw new Exception(
- String.Format(
+ throw new XmlException (
+ String.Format (
"invalid decimal digit: {0} (#x{1:X})",
(char)ch,
ch));
- }
}
}
- ReadChar(); // ';'
+ ReadChar (); // ';'
- AppendValueChar(value);
+ AppendValueChar (value);
}
- private void ReadEntityReference(bool ignoreEntityReferences)
+ private void ReadEntityReference (bool ignoreEntityReferences)
{
nameLength = 0;
- int ch = PeekChar();
+ int ch = PeekChar ();
- while (ch != ';' && ch != -1)
- {
- AppendNameChar(ReadChar());
- ch = PeekChar();
+ while (ch != ';' && ch != -1) {
+ AppendNameChar (ReadChar ());
+ ch = PeekChar ();
}
- Expect(';');
+ Expect (';');
- string name = CreateNameString();
+ string name = CreateNameString ();
switch (name)
{
case "lt":
- AppendValueChar('<');
+ AppendValueChar ('<');
break;
case "gt":
- AppendValueChar('>');
+ AppendValueChar ('>');
break;
case "amp":
- AppendValueChar('&');
+ AppendValueChar ('&');
break;
case "apos":
- AppendValueChar('\'');
+ AppendValueChar ('\'');
break;
case "quot":
- AppendValueChar('"');
+ AppendValueChar ('"');
break;
default:
- if (ignoreEntityReferences)
- {
- AppendValueChar('&');
+ if (ignoreEntityReferences) {
+ AppendValueChar ('&');
- foreach (char ch2 in name)
- {
- AppendValueChar(ch2);
+ foreach (char ch2 in name) {
+ AppendValueChar (ch2);
}
- AppendValueChar(';');
- }
- else
- {
+ AppendValueChar (';');
+ } else {
returnEntityReference = true;
entityReferenceName = name;
}
// The reader is positioned on the first character of
// the attribute name.
- private void ReadAttributes()
+ private void ReadAttributes ()
{
- do
- {
- string name = ReadName();
- SkipWhitespace();
- Expect('=');
- SkipWhitespace();
- string value = ReadAttribute();
- SkipWhitespace();
+ do {
+ string name = ReadName ();
+ SkipWhitespace ();
+ Expect ('=');
+ SkipWhitespace ();
+ string value = ReadAttribute ();
+ SkipWhitespace ();
if (name == "xmlns")
- {
- namespaceManager.AddNamespace(String.Empty, value);
- }
- else if (name.StartsWith("xmlns:"))
- {
- namespaceManager.AddNamespace(name.Substring(6), value);
- }
- else
- {
- AddAttribute(name, value);
- }
- }
- while (PeekChar() != '/' && PeekChar() != '>' && PeekChar() != -1);
+ parserContext.NamespaceManager.AddNamespace (String.Empty, value);
+ else if (name.StartsWith ("xmlns:"))
+ parserContext.NamespaceManager.AddNamespace (name.Substring (6), value);
+
+ AddAttribute (name, value);
+ } while (PeekChar () != '/' && PeekChar () != '>' && PeekChar () != -1);
}
// The reader is positioned on the quote character.
- private string ReadAttribute()
+ private string ReadAttribute ()
{
- int quoteChar = ReadChar();
+ int quoteChar = ReadChar ();
if (quoteChar != '\'' && quoteChar != '\"')
- {
- throw new Exception("an attribute value was not quoted");
- }
+ throw new XmlException ("an attribute value was not quoted");
valueLength = 0;
- while (PeekChar() != quoteChar)
- {
- int ch = ReadChar();
+ while (PeekChar () != quoteChar) {
+ int ch = ReadChar ();
switch (ch)
{
case '<':
- throw new Exception("attribute values cannot contain '<'");
+ throw new XmlException ("attribute values cannot contain '<'");
case '&':
- ReadReference(true);
+ ReadReference (true);
break;
case -1:
- throw new Exception("unexpected end of file in an attribute value");
+ throw new XmlException ("unexpected end of file in an attribute value");
default:
- AppendValueChar(ch);
+ AppendValueChar (ch);
break;
}
}
- ReadChar(); // quoteChar
+ ReadChar (); // quoteChar
- return CreateValueString();
+ return CreateValueString ();
}
// The reader is positioned on the first character
// of the target.
- private void ReadProcessingInstruction()
+ //
+ // Now it also reads XmlDeclaration, this method name became improper...
+ private void ReadProcessingInstruction ()
{
- string target = ReadName();
- SkipWhitespace();
+ string target = ReadName ();
+ SkipWhitespace ();
valueLength = 0;
- while (PeekChar() != -1)
- {
- int ch = ReadChar();
+ while (PeekChar () != -1) {
+ int ch = ReadChar ();
- if (ch == '?' && PeekChar() == '>')
- {
- ReadChar();
+ if (ch == '?' && PeekChar () == '>') {
+ ReadChar ();
break;
}
- AppendValueChar((char)ch);
+ AppendValueChar ((char)ch);
}
- SetProperties(
+/* for future use
+ if(target == "xml") && parserContext.InputState != XmlParserInputState.Start)
+ throw new XmlException("Xml declaration is not allowed here.");
+ else {
+ parserContext.InputState = XmlParserInputState.DTD; //for future use
+ }
+*/
+ SetProperties (
+ target == "xml" ?
+ XmlNodeType.XmlDeclaration :
XmlNodeType.ProcessingInstruction, // nodeType
target, // name
false, // isEmptyElement
- CreateValueString(), // value
+ CreateValueString (), // value
true // clearAttributes
);
}
// The reader is positioned on the first character after
// the leading '<!'.
- private void ReadDeclaration()
+ private void ReadDeclaration ()
{
- int ch = PeekChar();
+ int ch = PeekChar ();
switch (ch)
{
case '-':
- Expect('-');
- Expect('-');
- ReadComment();
+ Expect ("--");
+ ReadComment ();
break;
case '[':
- ReadChar();
- Expect('C');
- Expect('D');
- Expect('A');
- Expect('T');
- Expect('A');
- Expect('[');
- ReadCDATA();
+ ReadChar ();
+ Expect ("CDATA[");
+ ReadCDATA ();
+ break;
+ case 'D':
+ Expect ("DOCTYPE");
+ ReadDoctypeDecl ();
break;
}
}
// The reader is positioned on the first character after
// the leading '<!--'.
- private void ReadComment()
+ private void ReadComment ()
{
valueLength = 0;
- while (PeekChar() != -1)
- {
- int ch = ReadChar();
+ while (PeekChar () != -1) {
+ int ch = ReadChar ();
- if (ch == '-' && PeekChar() == '-')
- {
- ReadChar();
+ if (ch == '-' && PeekChar () == '-') {
+ ReadChar ();
- if (PeekChar() != '>')
- {
- throw new Exception("comments cannot contain '--'");
- }
+ if (PeekChar () != '>')
+ throw new XmlException ("comments cannot contain '--'");
- ReadChar();
+ ReadChar ();
break;
}
- AppendValueChar((char)ch);
+ AppendValueChar ((char)ch);
}
- SetProperties(
+ SetProperties (
XmlNodeType.Comment, // nodeType
String.Empty, // name
false, // isEmptyElement
- CreateValueString(), // value
+ CreateValueString (), // value
true // clearAttributes
);
}
// The reader is positioned on the first character after
// the leading '<![CDATA['.
- private void ReadCDATA()
+ private void ReadCDATA ()
{
valueLength = 0;
- while (PeekChar() != -1)
- {
- int ch = ReadChar();
+ while (PeekChar () != -1) {
+ int ch = ReadChar ();
- if (ch == ']' && PeekChar() == ']')
- {
- ch = ReadChar(); // ']'
+ if (ch == ']' && PeekChar () == ']') {
+ ch = ReadChar (); // ']'
- if (PeekChar() == '>')
- {
- ReadChar(); // '>'
+ if (PeekChar () == '>') {
+ ReadChar (); // '>'
break;
- }
- else
- {
- AppendValueChar(']');
- AppendValueChar(']');
- ch = ReadChar();
+ } else {
+ AppendValueChar (']');
+ AppendValueChar (']');
+ ch = ReadChar ();
}
}
- AppendValueChar((char)ch);
+ AppendValueChar ((char)ch);
}
- ++depth;
-
- SetProperties(
+ SetProperties (
XmlNodeType.CDATA, // nodeType
String.Empty, // name
false, // isEmptyElement
- CreateValueString(), // value
+ CreateValueString (), // value
true // clearAttributes
);
}
- // The reader is positioned on the first character
- // of the name.
- private string ReadName()
+ // The reader is positioned on the first character after
+ // the leading '<!DOCTYPE'.
+ private void ReadDoctypeDecl ()
{
- if (!XmlChar.IsFirstNameChar(PeekChar()))
+ string doctypeName = null;
+ string publicId = String.Empty;
+ string systemId = String.Empty;
+
+ SkipWhitespace ();
+ doctypeName = ReadName ();
+ SkipWhitespace ();
+ xmlBuffer.Length = 0;
+ switch(PeekChar ())
{
- throw new Exception("a name did not start with a legal character");
+ case 'S':
+ systemId = ReadSystemLiteral (true);
+ break;
+ case 'P':
+ publicId = ReadPubidLiteral ();
+ SkipWhitespace ();
+ systemId = ReadSystemLiteral (false);
+ break;
}
+ SkipWhitespace ();
- nameLength = 0;
- AppendNameChar(ReadChar());
+ if(PeekChar () == '[')
+ {
+ // read markupdecl etc. or end of decl
+ ReadChar ();
+ xmlBuffer.Length = 0;
+ saveToXmlBuffer = true;
+ do {
+ ReadDTDInternalSubset ();
+ } while(nodeType != XmlNodeType.None);
+ xmlBuffer.Remove (xmlBuffer.Length - 1, 1); // cut off ']'
+ saveToXmlBuffer = false;
+ }
+ // end of DOCTYPE decl.
+ SkipWhitespace ();
+ Expect ('>');
+
+ parserContext.InternalSubset = xmlBuffer.ToString ();
+
+ // set properties for <!DOCTYPE> node
+ SetProperties (
+ XmlNodeType.DocumentType, // nodeType
+ doctypeName, // name
+ false, // isEmptyElement
+ parserContext.InternalSubset, // value
+ true // clearAttributes
+ );
+ }
- while (XmlChar.IsNameChar(PeekChar()))
+ // Read any one of following:
+ // elementdecl, AttlistDecl, EntityDecl, NotationDecl,
+ // PI, Comment, Parameter Entity, or doctype termination char(']')
+ //
+ // returns a node of some nodeType or null, setting nodeType.
+ // (if None then ']' was found.)
+ private void ReadDTDInternalSubset()
+ {
+ SkipWhitespace ();
+ switch(ReadChar ())
{
- AppendNameChar(ReadChar());
+ case ']':
+ nodeType = XmlNodeType.None;
+ break;
+ case '%':
+ string peName = ReadName ();
+ Expect (';');
+ nodeType = XmlNodeType.EntityReference; // It's chating a bit;-)
+ break;
+ case '<':
+ switch(ReadChar ())
+ {
+ case '?':
+ ReadProcessingInstruction ();
+ break;
+ case '!':
+ switch(ReadChar ())
+ {
+ case '-':
+ Expect ('-');
+ ReadComment ();
+ break;
+ case 'E':
+ switch(ReadChar ())
+ {
+ case 'N':
+ Expect ("TITY");
+ ReadEntityDecl ();
+ break;
+ case 'L':
+ Expect ("EMENT");
+ ReadElementDecl ();
+ break;
+ default:
+ throw new XmlException ("Syntax Error after '<!E' (ELEMENT or ENTITY must be found)");
+ }
+ break;
+ case 'A':
+ Expect ("TTLIST");
+ ReadAttListDecl ();
+ break;
+ case 'N':
+ Expect ("OTATION");
+ ReadNotationDecl ();
+ break;
+ default:
+ throw new XmlException ("Syntax Error after '<!' characters.");
+ }
+ break;
+ default:
+ throw new XmlException ("Syntax Error after '<' character.");
+ }
+ break;
+ default:
+ throw new XmlException ("Syntax Error inside doctypedecl markup.");
}
+ }
+
+ // The reader is positioned on the head of the name.
+ private void ReadElementDecl()
+ {
+ while(ReadChar () != '>');
+ }
- return CreateNameString();
+ private void ReadEntityDecl()
+ {
+ while(ReadChar () != '>');
+ }
+
+ private void ReadAttListDecl()
+ {
+ while(ReadChar () != '>');
+ }
+
+ private void ReadNotationDecl()
+ {
+ while(ReadChar () != '>');
+ }
+
+ // The reader is positioned on the first 'S' of "SYSTEM".
+ private string ReadSystemLiteral (bool expectSYSTEM)
+ {
+ if(expectSYSTEM)
+ Expect ("SYSTEM");
+ SkipWhitespace ();
+ int quoteChar = ReadChar (); // apos or quot
+ xmlBuffer.Length = 0;
+ saveToXmlBuffer = true;
+ int c = 0;
+ while(c != quoteChar) {
+ c = ReadChar ();
+ if(c < 0) throw new XmlException ("Unexpected end of stream in ExternalID.");
+ }
+ saveToXmlBuffer = false;
+ xmlBuffer.Remove (xmlBuffer.Length-1, 1); // cut quoteChar
+ return xmlBuffer.ToString ();
+ }
+
+ private string ReadPubidLiteral()
+ {
+ Expect ("PUBLIC");
+ SkipWhitespace ();
+ int quoteChar = ReadChar ();
+ xmlBuffer.Length = 0;
+ saveToXmlBuffer = true;
+ int c = 0;
+ while(c != quoteChar)
+ {
+ c = ReadChar ();
+ if(c < 0) throw new XmlException ("Unexpected end of stream in ExternalID.");
+ if(c != quoteChar && !XmlChar.IsPubidChar (c))
+ throw new XmlException("character '" + (char)c + "' not allowed for PUBLIC ID");
+ }
+ ReadChar(); // skips quoteChar
+ xmlBuffer.Remove (xmlBuffer.Length-1, 1); // cut quoteChar
+ saveToXmlBuffer = false;
+ return xmlBuffer.ToString ();
+ }
+
+ // The reader is positioned on the first character
+ // of the name.
+ private string ReadName ()
+ {
+ if (!XmlChar.IsFirstNameChar (PeekChar ()))
+ throw new XmlException ("a name did not start with a legal character");
+
+ nameLength = 0;
+
+ AppendNameChar (ReadChar ());
+
+ while (XmlChar.IsNameChar (PeekChar ())) {
+ AppendNameChar (ReadChar ());
+ }
+
+ return CreateNameString ();
}
// Read the next character and compare it against the
// specified character.
- private void Expect(int expected)
+ private void Expect (int expected)
{
- int ch = ReadChar();
+ int ch = ReadChar ();
- if (ch != expected)
- {
- throw new Exception(String.Format(
- "expected '{0}' ({1:X}) but found '{2}' ({3:X})",
- (char)expected,
- expected,
- (char)ch,
- ch));
+ if (ch != expected) {
+ throw new XmlException (
+ String.Format (
+ "expected '{0}' ({1:X}) but found '{2}' ({3:X})",
+ (char)expected,
+ expected,
+ (char)ch,
+ ch));
}
}
+ private void Expect (string expected)
+ {
+ int len = expected.Length;
+ for(int i=0; i< len; i++)
+ Expect (expected[i]);
+ }
+
// Does not consume the first non-whitespace character.
- private void SkipWhitespace()
+ private void SkipWhitespace ()
{
- while (XmlChar.IsWhitespace(PeekChar()))
- {
- ReadChar();
+ //FIXME: Should not skip if whitespaceHandling == WhiteSpaceHandling.None
+ while (XmlChar.IsWhitespace (PeekChar ()))
+ ReadChar ();
+ }
+
+ private bool ReadWhitespace ()
+ {
+ valueLength = 0;
+ int ch = PeekChar ();
+ do {
+ AppendValueChar (ReadChar ());
+ } while ((ch = PeekChar ()) != -1 && XmlChar.IsWhitespace (ch));
+
+ if (ch != -1 && ch != '<')
+ ReadText (false);
+ else
+ SetProperties (XmlNodeType.Whitespace,
+ String.Empty,
+ false,
+ CreateValueString (),
+ true);
+
+ return (PeekChar () != -1);
+ }
+
+ // read entity reference from attribute string and if parsable then return the value.
+ private string ReadAttributeValueEntityReference ()
+ {
+ int endEntityPosition = attributeString.IndexOf(';',
+ attributeStringCurrentPosition);
+ string entityName = attributeString.Substring (attributeStringCurrentPosition + 1,
+ endEntityPosition - attributeStringCurrentPosition - 1);
+
+ attributeStringCurrentPosition = endEntityPosition + 1;
+
+ if(entityName [0] == '#') {
+ char c;
+ // character entity
+ if(entityName [1] == 'x') {
+ // hexadecimal
+ c = (char) int.Parse ("0" + entityName.Substring (2),
+ System.Globalization.NumberStyles.HexNumber);
+ } else {
+ // decimal
+ c = (char) int.Parse (entityName.Substring (1));
+ }
+ return c.ToString();
}
+ else {
+ switch(entityName)
+ {
+ case "lt": return "<";
+ case "gt": return ">";
+ case "amp": return "&";
+ case "quot": return "\"";
+ case "apos": return "'";
+ default: return null;
+ }
+ }
+ }
+
+ private string ResolveAttributeValue (string unresolved)
+ {
+ if(unresolved == null) return null;
+ StringBuilder resolved = new StringBuilder();
+ int pos = 0;
+
+ int next = unresolved.IndexOf ('&');
+ if(next < 0)
+ return unresolved;
+
+ while(next >= 0) {
+ if(pos < next)
+ resolved.Append (unresolved.Substring (pos, next - pos));// - 1);
+ int endPos = unresolved.IndexOf (';', next+1);
+ string entityName =
+ unresolved.Substring (next + 1, endPos - next - 1);
+ if(entityName [0] == '#') {
+ char c;
+ // character entity
+ if(entityName [1] == 'x') {
+ // hexadecimal
+ c = (char) int.Parse ("0" + entityName.Substring (2),
+ System.Globalization.NumberStyles.HexNumber);
+ } else {
+ // decimal
+ c = (char) int.Parse (entityName.Substring (1));
+ }
+ resolved.Append (c);
+ } else {
+ switch(entityName) {
+ case "lt": resolved.Append ("<"); break;
+ case "gt": resolved.Append (">"); break;
+ case "amp": resolved.Append ("&"); break;
+ case "quot": resolved.Append ("\""); break;
+ case "apos": resolved.Append ("'"); break;
+ // With respect to "Value", MS document is helpless
+ // and the implemention returns inconsistent value
+ // (e.g. XML: "&ent; &ent;" ---> Value: "&ent; &ent;".)
+ default: resolved.Append ("&" + entityName + ";"); break;
+ }
+ }
+ pos = endPos + 1;
+ if(pos > unresolved.Length)
+ break;
+ next = unresolved.IndexOf('&', pos);
+ }
+ resolved.Append (unresolved.Substring(pos));
+
+ return resolved.ToString();
}
+
+ #endregion
}
}
projects / mono.git / blobdiff