// (C) 2001, 2002 Jason Diamond http://injektilo.org/
//
-// FIXME:
//
-// I haven't checked whether DTD parser runs correct.
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
-// More strict well-formedness checking should be done.
+
+// FIXME:
//
-// NameTables aren't being used completely yet.
+// Some thought needs to be given to performance.
//
-// Some thought needs to be given to performance. There's too many
-// strings being allocated.
+// If current node is on an Attribute, Prefix might be null, and
+// in several fields which uses XmlReader, it should be considered.
//
using System;
using System.Collections;
+using System.Globalization;
using System.IO;
+using System.Security.Policy;
using System.Text;
using System.Xml.Schema;
using Mono.Xml;
-using Mono.Xml.Native;
namespace System.Xml
{
+#if NET_2_0
+ public class XmlTextReader : XmlReader,
+ IXmlLineInfo, IXmlNamespaceResolver
+#else
public class XmlTextReader : XmlReader, IXmlLineInfo
+#endif
{
#region Constructors
}
public XmlTextReader (string url, XmlNameTable nt)
- : this (url, new XmlStreamReader (url, null, null), nt)
{
+ Uri uri = resolver.ResolveUri (null, url);
+ Stream s = resolver.GetEntity (uri, null, typeof (Stream)) as Stream;
+ XmlParserContext ctx = new XmlParserContext (nt,
+ new XmlNamespaceManager (nt),
+ String.Empty,
+ XmlSpace.None);
+ this.InitializeContext (uri.ToString(), ctx, new XmlStreamReader (s), XmlNodeType.Document);
}
public XmlTextReader (TextReader input, XmlNameTable nt)
{
}
- [MonoTODO("TODO as same as private XmlTextReader(TextReader, XmlNodeType, XmlParserContext)")]
public XmlTextReader (string xmlFragment, XmlNodeType fragType, XmlParserContext context)
: this (context != null ? context.BaseURI : String.Empty,
new StringReader (xmlFragment),
{
}
- // 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)
{
InitializeContext (url, context, fragment, fragType);
public override int AttributeCount
{
- get { return attributes.Count; }
+ get { return attributeCount; }
}
public override string BaseURI
get { return parserContext.BaseURI; }
}
+#if NET_2_0
+ public override bool CanResolveEntity {
+ get { return true; }
+ }
+
+#endif
+
+ internal bool CharacterChecking {
+ get { return checkCharacters && normalization; }
+ set { checkCharacters = value; }
+ }
+
+ // for XmlReaderSettings.CloseInput support
+ internal bool CloseInput {
+ get { return closeInput; }
+ set { closeInput = value; }
+ }
+
public override int Depth
{
get {
+ int nodeTypeMod = currentToken.NodeType == XmlNodeType.Element ? 0 : -1;
+ if (currentAttributeValue >= 0)
+ return nodeTypeMod + elementDepth + 2; // inside attribute value.
+ else if (currentAttribute >= 0)
+ return nodeTypeMod + elementDepth + 1;
return elementDepth;
}
}
{
get { return parserContext.Encoding; }
}
+#if NET_2_0
+ [MonoTODO]
+ public EntityHandling EntityHandling {
+ get { return entityHandling; }
+ set { entityHandling = value; }
+ }
+#endif
- public override bool EOF
- {
- get
- {
- return
- readState == ReadState.EndOfFile ||
- readState == ReadState.Closed;
- }
+ public override bool EOF {
+ get { return readState == ReadState.EndOfFile; }
}
- public override bool HasValue
- {
- get {
- if (this.valueBuilderAvailable)
- return valueBuilder.Length != 0;
- else
- return value != String.Empty;
- }
+#if NET_2_0
+ [MonoTODO]
+ public override Evidence Evidence {
+ get { return base.Evidence; }
}
+#endif
- public override bool IsDefault
- {
- get
- {
- // XmlTextReader does not expand default attributes.
- return false;
- }
+ public override bool HasValue {
+ get { return cursorToken.Value != null; }
}
- public override bool IsEmptyElement
- {
- get { return isEmptyElement; }
+ public override bool IsDefault {
+ // XmlTextReader does not expand default attributes.
+ get { return false; }
}
- public override string this [int i]
- {
+ public override bool IsEmptyElement {
+ get { return cursorToken.IsEmptyElement; }
+ }
+
+ public override string this [int i] {
get { return GetAttribute (i); }
}
- public override string this [string name]
- {
+ public override string this [string 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); }
}
- public int LineNumber
- {
- get { return currentInput.LineNumber; }
+ public int LineNumber {
+ get {
+ if (useProceedingLineInfo)
+ return line;
+ else
+ return cursorToken.LineNumber;
+ }
}
- public int LinePosition
- {
- get { return currentInput.LinePosition; }
+ public int LinePosition {
+ get {
+ if (useProceedingLineInfo)
+ return column;
+ else
+ return cursorToken.LinePosition;
+ }
}
- public override string LocalName
- {
- get { return localName; }
+ public override string LocalName {
+ get { return cursorToken.LocalName; }
}
- public override string Name
- {
- get { return name; }
+ public override string Name {
+ get { return cursorToken.Name; }
}
- public bool Namespaces
- {
+ public bool Namespaces {
get { return namespaces; }
set {
if (readState != ReadState.Initial)
}
}
- public override string NamespaceURI
- {
- get { return namespaceURI; }
+ public override string NamespaceURI {
+ get { return cursorToken.NamespaceURI; }
}
- public override XmlNameTable NameTable
- {
+ public override XmlNameTable NameTable {
get { return parserContext.NameTable; }
}
- public override XmlNodeType NodeType
- {
- get { return nodeType; }
+ public override XmlNodeType NodeType {
+ get { return cursorToken.NodeType; }
}
- [MonoTODO]
- public bool Normalization
- {
+ public bool Normalization {
get { return normalization; }
set { normalization = value; }
}
- public override string Prefix
- {
- get { return prefix; }
+ public override string Prefix {
+ get { return cursorToken.Prefix; }
}
- public override char QuoteChar
- {
- get {
- // value string holds attribute quotation char.
- if (NodeType == XmlNodeType.Attribute)
- return value [0];
- else
- return '"';
- }
+#if NET_2_0
+ public bool ProhibitDtd {
+ get { return prohibitDtd; }
+ set { prohibitDtd = value; }
}
+#endif
- public override ReadState ReadState
- {
+ public override char QuoteChar {
+ get { return cursorToken.QuoteChar; }
+ }
+
+ public override ReadState ReadState {
get { return readState; }
}
- public override string Value
- {
- get {
-
- string v = value;
- if (valueBuilderAvailable)
- v = valueBuilder.ToString ();
- if(NodeType == XmlNodeType.Attribute)
- return UnescapeAttributeValue(v);
- else
- return v;
- }
+#if NET_2_0
+ public override XmlReaderSettings Settings {
+ get { return base.Settings; }
}
+#endif
- public WhitespaceHandling WhitespaceHandling
- {
+ public override string Value {
+ get { return cursorToken.Value != null ? cursorToken.Value : String.Empty; }
+ }
+
+ public WhitespaceHandling WhitespaceHandling {
get { return whitespaceHandling; }
set { whitespaceHandling = value; }
}
- public override string XmlLang
- {
+ public override string XmlLang {
get { return parserContext.XmlLang; }
}
- public XmlResolver XmlResolver
- {
+ public XmlResolver XmlResolver {
set { resolver = value; }
}
- public override XmlSpace XmlSpace
- {
+ public override XmlSpace XmlSpace {
get { return parserContext.XmlSpace; }
}
public override void Close ()
{
readState = ReadState.Closed;
- foreach (XmlParserInput input in parserInputStack.ToArray ())
- input.Close ();
- this.currentInput.Close ();
+
+ cursorToken.Clear ();
+ currentToken.Clear ();
+ attributeCount = 0;
+ if (closeInput && reader != null)
+ reader.Close ();
}
public override string GetAttribute (int i)
{
- if (i > attributes.Count)
+ if (i >= attributeCount)
throw new ArgumentOutOfRangeException ("i is smaller than AttributeCount");
- else
- return UnescapeAttributeValue (attributes [orderedAttributes [i]] as string);
+ else {
+ return attributeTokens [i].Value;
+ }
}
- // MS.NET 1.0 documentation says that this method returns String.Empty for
- // not-exist attribute, but in fact it returns null.
- // That description is corrected in MS.NET 1.1 documentation.
+ // MS.NET 1.0 msdn says that this method returns String.Empty
+ // for absent attribute, but in fact it returns null.
+ // This description is corrected in MS.NET 1.1 msdn.
public override string GetAttribute (string name)
{
- return UnescapeAttributeValue (attributes [name] as string);
+ for (int i = 0; i < attributeCount; i++)
+ if (attributeTokens [i].Name == name)
+ return attributeTokens [i].Value;
+ return null;
}
private int GetIndexOfQualifiedAttribute (string localName, string namespaceURI)
{
- for(int i = 0; i < orderedAttributes.Count; i++)
- {
- string thisName = (string) orderedAttributes [i];
-
- int indexOfColon = thisName.IndexOf (':');
-
- if (indexOfColon != -1) {
- string thisLocalName = thisName.Substring (indexOfColon + 1);
-
- if (localName == thisLocalName) {
- string thisPrefix = thisName.Substring (0, indexOfColon);
- string thisNamespaceURI = LookupNamespace (thisPrefix);
-
- if (namespaceURI == thisNamespaceURI)
- return i;
- }
- } else if (localName == "xmlns" && namespaceURI == "http://www.w3.org/2000/xmlns/" && thisName == "xmlns")
+ for (int i = 0; i < attributeCount; i++) {
+ XmlAttributeTokenInfo ti = attributeTokens [i];
+ if (ti.LocalName == localName && ti.NamespaceURI == namespaceURI)
return i;
}
return -1;
int idx = this.GetIndexOfQualifiedAttribute (localName, namespaceURI);
if (idx < 0)
return null;
- return UnescapeAttributeValue (attributes [orderedAttributes [idx]] as string);
+ return attributeTokens [idx].Value;
}
- [MonoTODO]
+#if NET_2_0
+ public IDictionary GetNamespacesInScope (XmlNamespaceScope scope)
+ {
+ return parserContext.NamespaceManager.GetNamespacesInScope (scope);
+ }
+#endif
+
public TextReader GetRemainder ()
{
- throw new NotImplementedException ();
+ if (peekCharsIndex == peekCharsLength)
+ return reader;
+ return new StringReader (new string (peekChars, peekCharsIndex, peekCharsLength - peekCharsIndex) + reader.ReadToEnd ());
}
+#if NET_2_0
+ public bool HasLineInfo ()
+#else
bool IXmlLineInfo.HasLineInfo ()
+#endif
{
return true;
}
public override string LookupNamespace (string prefix)
{
- return parserContext.NamespaceManager.LookupNamespace (prefix);
+ return LookupNamespace (prefix, false);
}
- public override void MoveToAttribute (int i)
+#if NET_2_0
+ public override string LookupNamespace (string prefix, bool atomizedName)
+#else
+ internal override string LookupNamespace (string prefix, bool atomizedName)
+#endif
{
- MoveToElement ();
+ return parserContext.NamespaceManager.LookupNamespace (prefix, atomizedName);
+ }
- if (attributes == null || orderedAttributes.Count < i || i < 0)
- throw new ArgumentOutOfRangeException ("attribute index out of range.");
+#if NET_2_0
+ string IXmlNamespaceResolver.LookupPrefix (string ns)
+ {
+ return LookupPrefix (ns, false);
+ }
- if (orderedAttributesEnumerator == null) {
- SaveProperties ();
- }
+ public string LookupPrefix (string ns, bool atomizedName)
+ {
+ return parserContext.NamespaceManager.LookupPrefix (ns, atomizedName);
+ }
+#endif
- orderedAttributesEnumerator = orderedAttributes.GetEnumerator ();
- for (int n=0; n<=i; n++)
- orderedAttributesEnumerator.MoveNext();
+ public override void MoveToAttribute (int i)
+ {
+ if (i >= attributeCount)
+ throw new ArgumentOutOfRangeException ("attribute index out of range.");
- string name = orderedAttributes [i] as string;
- string value = attributes [name] as string;
- SetProperties (
- XmlNodeType.Attribute, // nodeType
- name, // name
- false, // isEmptyElement
- value, // value
- false // clearAttributes
- );
- attributeValuePos = 0;
+ currentAttribute = i;
+ currentAttributeValue = -1;
+ cursorToken = attributeTokens [i];
}
public override bool MoveToAttribute (string name)
{
- 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;
+ for (int i = 0; i < attributeCount; i++) {
+ XmlAttributeTokenInfo ti = attributeTokens [i];
+ if (ti.Name == name) {
+ MoveToAttribute (i);
+ return true;
}
}
-
- if (match) {
- string value = attributes [name] as string;
- SetProperties (
- XmlNodeType.Attribute, // nodeType
- name, // name
- false, // isEmptyElement
- value, // value
- false // clearAttributes
- );
- attributeValuePos = 0;
- }
-
- return match;
+ return false;
}
public override bool MoveToAttribute (string localName, string namespaceName)
{
- MoveToElement ();
-
- if (attributes == null)
- return false;
-
int idx = GetIndexOfQualifiedAttribute (localName, namespaceName);
if (idx < 0)
return false;
public override bool MoveToElement ()
{
- if (orderedAttributesEnumerator != null) {
- orderedAttributesEnumerator = null;
- if (isPropertySaved)
- RestoreProperties ();
+ if (currentToken == null) // for attribute .ctor()
+ return false;
+
+ if (cursorToken == currentToken)
+ return false;
+
+ if (currentAttribute >= 0) {
+ currentAttribute = -1;
+ currentAttributeValue = -1;
+ cursorToken = currentToken;
return true;
}
-
- return false;
+ else
+ return false;
}
public override bool MoveToFirstAttribute ()
{
+ if (attributeCount == 0)
+ return false;
MoveToElement ();
return MoveToNextAttribute ();
}
public override bool MoveToNextAttribute ()
{
- if (attributes == null)
+ if (currentAttribute == 0 && attributeCount == 0)
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
- );
- attributeValuePos = 0;
+ if (currentAttribute + 1 < attributeCount) {
+ currentAttribute++;
+ currentAttributeValue = -1;
+ cursorToken = attributeTokens [currentAttribute];
return true;
}
-
- return false;
+ else
+ return false;
}
public override bool Read ()
{
+ if (startNodeType == XmlNodeType.Attribute) {
+ if (currentAttribute == 0)
+ return false; // already read.
+ ClearAttributes ();
+ IncrementAttributeToken ();
+ ReadAttributeValueTokens ('"');
+ cursorToken = attributeTokens [0];
+ currentAttributeValue = -1;
+ readState = ReadState.Interactive;
+ return true;
+ }
+
bool more = false;
- isPropertySaved = false;
readState = ReadState.Interactive;
+ currentLinkedNodeLineNumber = line;
+ currentLinkedNodeLinePosition = column;
+ useProceedingLineInfo = true;
+
+ cursorToken = currentToken;
+ attributeCount = 0;
+ currentAttribute = currentAttributeValue = -1;
+ currentToken.Clear ();
// It was moved from end of ReadStartTag ().
- if (depthUp)
+ if (depthUp) {
++depth;
- depthUp = false;
+ depthUp = false;
+ }
+
+ if (shouldSkipUntilEndTag) {
+ shouldSkipUntilEndTag = false;
+ return ReadUntilEndTag ();
+ }
+
+ base64CacheStartsAt = -1;
more = ReadContent ();
- if (depth == 0 && !allowMultipleRoot && (IsEmptyElement || NodeType == XmlNodeType.EndElement))
- currentState = XmlNodeType.EndElement;
- if (maybeTextDecl != 0)
- maybeTextDecl--;
+ if (!more && startNodeType == XmlNodeType.Document && currentState != XmlNodeType.EndElement)
+ throw new XmlException ("Document element did not appear.");
+ useProceedingLineInfo = false;
return more;
}
public override bool ReadAttributeValue ()
{
- // 'attributeString' holds real string value (without their
- // quotation characters).
- //
- // 'attributeValuePos' holds current position
- // of 'attributeString' while iterating ReadAttribute().
- // It may be:
- // -1 if ReadAttributeValue() has already finished.
- // 0 if ReadAttributeValue() ready to start reading.
- // >0 if ReadAttributeValue() already got 1 or more values
- //
- // local 'refPosition' holds the position on the
- // attributeString which may be used next time.
-
- if (attributeValuePos < 0)
- return false;
-
- // If not started, then initialize attributeString when parsing is at start.
- if (attributeValuePos == 0)
- attributeString =
- value.Substring (1, value.Length - 2);
+ if (readState == ReadState.Initial && startNodeType == XmlNodeType.Attribute) {
+ Read ();
+ }
- // It occurs when attribute dully consists of entity reference.
- if (attributeValuePos == attributeString.Length)
+ if (currentAttribute < 0)
return false;
+ XmlAttributeTokenInfo ti = attributeTokens [currentAttribute];
+ if (currentAttributeValue < 0)
+ currentAttributeValue = ti.ValueTokenStartIndex - 1;
- returnEntityReference = false;
- value = String.Empty;
- int refPosition;
- int loop = 0;
-
- do {
- refPosition = attributeString.IndexOf ('&', attributeValuePos);
- if (refPosition < 0) {
- // Reached to the end of value string.
- value += attributeString.Substring (attributeValuePos);
- attributeValuePos = -1;
- break;
- } else if (refPosition == attributeValuePos) {
- string parsed = ReadAttributeValueReference ();
- if (parsed != null)
- value += parsed;
- else {
- // Found that an entity reference starts from this point.
- // reset position to after '&'.
- attributeValuePos = refPosition;
- if (value.Length <= 0) {
- int endNamePos = attributeString.IndexOf (";", attributeValuePos);
- value = attributeString.Substring (attributeValuePos+1, endNamePos - attributeValuePos - 1);
- attributeValuePos += value.Length + 2;
- returnEntityReference = true;
- }
- break;
- }
- } else {
- value += attributeString.Substring (attributeValuePos,
- refPosition - attributeValuePos);
- attributeValuePos = refPosition;
- continue;
- }
- } while (++loop > 0);
-
- if (returnEntityReference)
- SetProperties (XmlNodeType.EntityReference,
- value,
- false,
- String.Empty,
- false);
+ if (currentAttributeValue < ti.ValueTokenEndIndex) {
+ currentAttributeValue++;
+ cursorToken = attributeValueTokens [currentAttributeValue];
+ return true;
+ }
else
- SetProperties (XmlNodeType.Text,
- "",
- false,
- value,
- false);
+ return false;
+ }
- return true;
+ private int SkipIgnorableBase64Chars (char [] chars, int charsLength, int i)
+ {
+ while (chars [i] == '=' || XmlChar.IsWhitespace (chars [i]))
+ if (charsLength == ++i)
+ break;
+ return i;
}
- [MonoTODO]
public int ReadBase64 (byte [] buffer, int offset, int length)
{
- throw new NotImplementedException ();
+ if (offset < 0)
+ throw new ArgumentOutOfRangeException ("offset", offset, "Offset must be non-negative integer.");
+ else if (length < 0)
+ throw new ArgumentOutOfRangeException ("length", length, "Length must be non-negative integer.");
+ else if (buffer.Length < offset + length)
+ throw new ArgumentOutOfRangeException ("buffer length is smaller than the sum of offset and length.");
+
+ if (length == 0) // It does not raise an error.
+ return 0;
+
+ int bufIndex = offset;
+ int bufLast = offset + length;
+
+ if (base64CacheStartsAt >= 0) {
+ for (int i = base64CacheStartsAt; i < 3; i++) {
+ buffer [bufIndex++] = base64Cache [base64CacheStartsAt++];
+ if (bufIndex == bufLast)
+ return bufLast - offset;
+ }
+ }
+
+ for (int i = 0; i < 3; i++)
+ base64Cache [i] = 0;
+ base64CacheStartsAt = -1;
+
+ int max = (int) System.Math.Ceiling (4.0 / 3 * length);
+ int additional = max % 4;
+ if (additional > 0)
+ max += 4 - additional;
+ char [] chars = new char [max];
+ int charsLength = ReadChars (chars, 0, max);
+
+ byte b = 0;
+ byte work = 0;
+ bool loop = true;
+ for (int i = 0; i < charsLength - 3; i++) {
+ if ((i = SkipIgnorableBase64Chars (chars, charsLength, i)) == charsLength)
+ break;
+ b = (byte) (GetBase64Byte (chars [i]) << 2);
+ if (bufIndex < bufLast)
+ buffer [bufIndex] = b;
+ else {
+ if (base64CacheStartsAt < 0)
+ base64CacheStartsAt = 0;
+ base64Cache [0] = b;
+ }
+ // charsLength mod 4 might not equals to 0.
+ if (++i == charsLength)
+ break;
+ if ((i = SkipIgnorableBase64Chars (chars, charsLength, i)) == charsLength)
+ break;
+ b = GetBase64Byte (chars [i]);
+ work = (byte) (b >> 4);
+ if (bufIndex < bufLast) {
+ buffer [bufIndex] += work;
+ bufIndex++;
+ }
+ else
+ base64Cache [0] += work;
+
+ work = (byte) ((b & 0xf) << 4);
+ if (bufIndex < bufLast) {
+ buffer [bufIndex] = work;
+ }
+ else {
+ if (base64CacheStartsAt < 0)
+ base64CacheStartsAt = 1;
+ base64Cache [1] = work;
+ }
+
+ if (++i == charsLength)
+ break;
+ if ((i = SkipIgnorableBase64Chars (chars, charsLength, i)) == charsLength)
+ break;
+ b = GetBase64Byte (chars [i]);
+ work = (byte) (b >> 2);
+ if (bufIndex < bufLast) {
+ buffer [bufIndex] += work;
+ bufIndex++;
+ }
+ else
+ base64Cache [1] += work;
+
+ work = (byte) ((b & 3) << 6);
+ if (bufIndex < bufLast)
+ buffer [bufIndex] = work;
+ else {
+ if (base64CacheStartsAt < 0)
+ base64CacheStartsAt = 2;
+ base64Cache [2] = work;
+ }
+ if (++i == charsLength)
+ break;
+ if ((i = SkipIgnorableBase64Chars (chars, charsLength, i)) == charsLength)
+ break;
+ work = GetBase64Byte (chars [i]);
+ if (bufIndex < bufLast) {
+ buffer [bufIndex] += work;
+ bufIndex++;
+ }
+ else
+ base64Cache [2] += work;
+ }
+ return System.Math.Min (bufLast - offset, bufIndex - offset);
}
- [MonoTODO]
public int ReadBinHex (byte [] buffer, int offset, int length)
{
- throw new NotImplementedException ();
+ if (offset < 0)
+ throw new ArgumentOutOfRangeException ("offset", offset, "Offset must be non-negative integer.");
+ else if (length < 0)
+ throw new ArgumentOutOfRangeException ("length", length, "Length must be non-negative integer.");
+ else if (buffer.Length < offset + length)
+ throw new ArgumentOutOfRangeException ("buffer length is smaller than the sum of offset and length.");
+
+ if (length == 0)
+ return 0;
+
+ char [] chars = new char [length * 2];
+ int charsLength = ReadChars (chars, 0, length * 2);
+ return XmlConvert.FromBinHexString (chars, offset, charsLength, buffer);
}
- [MonoTODO]
public int ReadChars (char [] buffer, int offset, int length)
{
- throw new NotImplementedException ();
+ return ReadCharsInternal (buffer, offset, length);
}
+#if NET_2_0
+ public override string ReadString ()
+ {
+ return ReadStringInternal ();
+ }
+#elif NET_1_1
+#else
public override string ReadInnerXml ()
{
- if (readState != ReadState.Interactive)
- return String.Empty;
-
- switch (NodeType) {
- case XmlNodeType.Attribute:
- return value.Substring (1, value.Length - 2);
- case XmlNodeType.Element:
- if (IsEmptyElement)
- return String.Empty;
-
- int startDepth = depth;
-
- if (innerXmlBuilder == null)
- innerXmlBuilder = new StringBuilder ();
- innerXmlBuilder.Length = 0;
- bool loop = true;
- do {
- Read ();
- if (NodeType ==XmlNodeType.None)
- throw new XmlException ("unexpected end of xml.");
- else if (NodeType == XmlNodeType.EndElement && depth == startDepth) {
- loop = false;
- Read ();
- }
- else
- innerXmlBuilder.Append (currentTag);
- } while (loop);
- string xml = innerXmlBuilder.ToString ();
- innerXmlBuilder.Length = 0;
- return xml;
- case XmlNodeType.None:
- // MS document is incorrect. Seems not to progress.
- return String.Empty;
- default:
- Read ();
- return String.Empty;
- }
+ return ReadInnerXmlInternal ();
}
public override string ReadOuterXml ()
{
- if (readState != ReadState.Interactive)
- return String.Empty;
-
- switch (NodeType) {
- case XmlNodeType.Attribute:
- // strictly incompatible with MS... (it holds spaces attribute between name, value and "=" char (very trivial).
- return String.Format ("{0}={1}{2}{1}", Name, QuoteChar, ReadInnerXml ());
- case XmlNodeType.Element:
- bool isEmpty = IsEmptyElement;
- string startTag = currentTag.ToString ();
- string name = Name;
-
- if (NodeType == XmlNodeType.Element && !isEmpty)
- return String.Format ("{0}{1}</{2}>", startTag, ReadInnerXml (), name);
- else
- return currentTag.ToString ();
- case XmlNodeType.None:
- // MS document is incorrect. Seems not to progress.
- return String.Empty;
- default:
- Read ();
- return String.Empty;
- }
+ return ReadOuterXmlInternal ();
}
public override string ReadString ()
{
return ReadStringInternal ();
}
+#endif
public void ResetState ()
{
+ throw new InvalidOperationException ("Cannot call ResetState when parsing an XML fragment.");
Init ();
}
- public override void ResolveEntity ()
+#if NET_2_0
+ [MonoTODO]
+ public override bool ReadValueAsBoolean ()
{
- // XmlTextReaders don't resolve entities.
- throw new InvalidOperationException ("XmlTextReader cannot resolve external entities.");
+ return base.ReadValueAsBoolean ();
}
- #endregion
-
- #region Internals
- // Parsed DTD Objects
- internal DTDObjectModel DTD;
- #endregion
+ [MonoTODO]
+ public override DateTime ReadValueAsDateTime ()
+ {
+ return base.ReadValueAsDateTime ();
+ }
- #region Privates
+ [MonoTODO]
+ public override decimal ReadValueAsDecimal ()
+ {
+ return base.ReadValueAsDecimal ();
+ }
- private XmlParserContext parserContext;
+ [MonoTODO]
+ public override double ReadValueAsDouble ()
+ {
+ return base.ReadValueAsDouble ();
+ }
- private XmlParserInput currentInput;
- private Stack parserInputStack;
- private ReadState readState;
+ [MonoTODO]
+ public override int ReadValueAsInt32 ()
+ {
+ return base.ReadValueAsInt32 ();
+ }
- private int depth;
- private int elementDepth;
- private bool depthUp;
+ [MonoTODO]
+ public override long ReadValueAsInt64 ()
+ {
+ return base.ReadValueAsInt64 ();
+ }
- private bool popScope;
- private Stack elementStack;
- private bool allowMultipleRoot;
+ [MonoTODO]
+ public override ICollection ReadValueAsList ()
+ {
+ return base.ReadValueAsList ();
+ }
- private XmlNodeType nodeType;
- private string name;
- private string prefix;
- private string localName;
- private string namespaceURI;
- private bool isEmptyElement;
- private string value;
- private StringBuilder valueBuilder;
- private bool valueBuilderAvailable = false;
-
- private bool isPropertySaved;
- 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;
+ [MonoTODO]
+ public override float ReadValueAsSingle ()
+ {
+ return base.ReadValueAsSingle ();
+ }
+
+ [MonoTODO]
+ public override string ReadValueAsString ()
+ {
+ return ReadString ();
+ }
+
+ [MonoTODO]
+ public override object ReadValueAs (Type type)
+ {
+ return base.ReadValueAs (type);
+ }
+
+ [MonoTODO]
+ public override object ReadValueAs (Type type, IXmlNamespaceResolver resolver)
+ {
+ return base.ReadValueAs (type, resolver);
+ }
+#endif
+
+ public override void ResolveEntity ()
+ {
+ // XmlTextReader does not resolve entities.
+ throw new InvalidOperationException ("XmlTextReader cannot resolve external entities.");
+ }
+
+#if NET_2_0
+ [MonoTODO ("Implement for performance reason")]
+ public override void Skip ()
+ {
+ base.Skip ();
+ }
+#endif
+ #endregion
+
+ #region Internals
+ // Parsed DTD Objects
+#if DTD_HANDLE_EVENTS
+ internal event ValidationEventHandler ValidationEventHandler;
+#endif
+
+ internal DTDObjectModel DTD {
+ get { return parserContext.Dtd; }
+ }
+
+ internal XmlResolver Resolver {
+ get { return resolver; }
+ }
+ #endregion
+
+ #region Privates
+ internal class XmlTokenInfo
+ {
+ public XmlTokenInfo (XmlTextReader xtr, bool isPrimaryToken)
+ {
+ this.isPrimaryToken = isPrimaryToken;
+ Reader = xtr;
+ Clear ();
+ }
+
+ bool isPrimaryToken;
+ string valueCache;
+
+ protected XmlTextReader Reader;
+
+ public string Name;
+ public string LocalName;
+ public string Prefix;
+ public string NamespaceURI;
+ public bool IsEmptyElement;
+ public char QuoteChar;
+ public int LineNumber;
+ public int LinePosition;
+
+ public XmlNodeType NodeType;
+
+ public virtual string Value {
+ get {
+ if (valueCache != null)
+ return valueCache;
+ switch (NodeType) {
+ case XmlNodeType.Text:
+ case XmlNodeType.SignificantWhitespace:
+ case XmlNodeType.Whitespace:
+ case XmlNodeType.Comment:
+ case XmlNodeType.CDATA:
+ case XmlNodeType.ProcessingInstruction:
+ valueCache = Reader.CreateValueString ();
+ return valueCache;
+ }
+ return null;
+ }
+ set { valueCache = value; }
+ }
+
+ public virtual void Clear ()
+ {
+ valueCache = null;
+ NodeType = XmlNodeType.None;
+ Name = LocalName = Prefix = NamespaceURI = String.Empty;
+ IsEmptyElement = false;
+ QuoteChar = '"';
+ LineNumber = LinePosition = 0;
+ }
+
+ internal virtual void FillNames ()
+ {
+ if (Reader.Namespaces) {
+ int indexOfColon = -1;
+ switch (NodeType) {
+ case XmlNodeType.Attribute:
+ case XmlNodeType.Element:
+ case XmlNodeType.EndElement:
+ indexOfColon = Name.IndexOf (':');
+ break;
+ }
+
+ if (indexOfColon == -1) {
+ Prefix = String.Empty;
+ LocalName = Name;
+ } else {
+ // This improves speed by at least nearly 5%, but eats more memory at least nearly 0.3%
+ // However, this might be reverted if NameTable is got improved.
+ char [] nameArr = Name.ToCharArray ();
+ Prefix = Reader.NameTable.Add (nameArr, 0, indexOfColon);
+ LocalName = Reader.NameTable.Add (nameArr, indexOfColon + 1, nameArr.Length - indexOfColon - 1);
+// Prefix = Reader.NameTable.Add (Name.Substring (0, indexOfColon));
+// LocalName = Reader.NameTable.Add (Name.Substring (indexOfColon + 1));
+ }
+
+ // NamespaceURI
+ switch (NodeType) {
+ case XmlNodeType.Attribute:
+ if (Prefix.Length == 0)
+ NamespaceURI = string.Empty;
+ else
+ NamespaceURI = Reader.LookupNamespace (Prefix, true);
+ break;
+
+ case XmlNodeType.Element:
+ case XmlNodeType.EndElement:
+ NamespaceURI = Reader.LookupNamespace (Prefix, true);
+ break;
+ default:
+ NamespaceURI = "";
+ break;
+ }
+ } else {
+ Prefix = String.Empty;
+ LocalName = Name;
+ }
+ }
+ }
+
+ internal class XmlAttributeTokenInfo : XmlTokenInfo
+ {
+ public XmlAttributeTokenInfo (XmlTextReader reader)
+ : base (reader, false)
+ {
+ NodeType = XmlNodeType.Attribute;
+ }
+
+ public int ValueTokenStartIndex;
+ public int ValueTokenEndIndex;
+ string valueCache;
+ bool cachedNormalization;
+ StringBuilder tmpBuilder = new StringBuilder ();
+
+ public override string Value {
+ get {
+ if (cachedNormalization != Reader.Normalization)
+ valueCache = null;
+ if (valueCache != null)
+ return valueCache;
+
+ cachedNormalization = Reader.Normalization;
+
+ // An empty value should return String.Empty.
+ if (ValueTokenStartIndex == ValueTokenEndIndex) {
+ XmlTokenInfo ti = Reader.attributeValueTokens [ValueTokenStartIndex];
+ if (ti.NodeType == XmlNodeType.EntityReference)
+ valueCache = String.Concat ("&", ti.Name, ";");
+ else
+ valueCache = ti.Value;
+ if (cachedNormalization)
+ NormalizeSpaces ();
+ return valueCache;
+ }
+
+ tmpBuilder.Length = 0;
+ for (int i = ValueTokenStartIndex; i <= ValueTokenEndIndex; i++) {
+ XmlTokenInfo ti = Reader.attributeValueTokens [i];
+ if (ti.NodeType == XmlNodeType.Text)
+ tmpBuilder.Append (ti.Value);
+ else {
+ tmpBuilder.Append ('&');
+ tmpBuilder.Append (ti.Name);
+ tmpBuilder.Append (';');
+ }
+ }
+
+ valueCache = tmpBuilder.ToString ();
+ if (cachedNormalization)
+ NormalizeSpaces ();
+ return valueCache;
+ }
+
+ set { valueCache = value; }
+ }
+
+ public override void Clear ()
+ {
+ base.Clear ();
+ valueCache = null;
+ NodeType = XmlNodeType.Attribute;
+ ValueTokenStartIndex = ValueTokenEndIndex = 0;
+ }
+
+ internal override void FillNames ()
+ {
+ base.FillNames ();
+ if (Prefix == "xmlns" || Name == "xmlns")
+ NamespaceURI = XmlNamespaceManager.XmlnsXmlns;
+ }
+
+ private void NormalizeSpaces ()
+ {
+ tmpBuilder.Length = 0;
+ for (int i = 0; i < valueCache.Length; i++)
+ switch (valueCache [i]) {
+ case '\r':
+ if (i + 1 < valueCache.Length && valueCache [i + 1] == '\n')
+ i++;
+ goto case '\n';
+ case '\t':
+ case '\n':
+ tmpBuilder.Append (' ');
+ break;
+ default:
+ tmpBuilder.Append (valueCache [i]);
+ break;
+ }
+ valueCache = tmpBuilder.ToString ();
+ }
+ }
+
+ private XmlTokenInfo cursorToken;
+ private XmlTokenInfo currentToken;
+ private XmlAttributeTokenInfo currentAttributeToken;
+ private XmlTokenInfo currentAttributeValueToken;
+ private XmlAttributeTokenInfo [] attributeTokens = new XmlAttributeTokenInfo [10];
+ private XmlTokenInfo [] attributeValueTokens = new XmlTokenInfo [10];
+ private int currentAttribute;
+ private int currentAttributeValue;
+ private int attributeCount;
+
+ private XmlParserContext parserContext;
+
+ private ReadState readState;
+
+ private int depth;
+ private int elementDepth;
+ private bool depthUp;
+
+ private bool popScope;
+
+ private string [] elementNames;
+ int elementNameStackPos;
+
+ private bool allowMultipleRoot;
+
+ private bool isStandalone;
private bool returnEntityReference;
private string entityReferenceName;
private char [] nameBuffer;
private int nameLength;
private int nameCapacity;
- private const int initialNameCapacity = 256;
+ private const int initialNameCapacity = 32;
- private StringBuilder valueBuffer;
+ private char [] valueBuffer;
+ private int valueLength;
+ private int valueCapacity;
+ private const int initialValueCapacity = 256;
- // A buffer for ReadContent for ReadOuterXml
- private StringBuilder currentTag {
- get {
- return currentInput.CurrentMarkup;
- }
- }
+ private char [] currentTagBuffer;
+ private int currentTagLength;
+ private int currentTagCapacity;
+ private const int initialCurrentTagCapacity = 256;
- private string attributeString;
- private int attributeValuePos;
- // This should be only referenced(used) by ReadInnerXml(). Kind of flyweight pattern.
- private StringBuilder innerXmlBuilder;
+ private TextReader reader;
+ private char [] peekChars;
+ private int peekCharsIndex;
+ private int peekCharsLength;
+ private const int peekCharCapacity = 1024;
- // Parameter entity placeholder
- private Hashtable parameterEntities;
- private int dtdIncludeSect;
- private bool isIntSubset;
+ private int line;
+ private int column;
+ private int currentLinkedNodeLineNumber;
+ private int currentLinkedNodeLinePosition;
+ private bool useProceedingLineInfo;
+
+ private XmlNodeType startNodeType;
// State machine attribute.
// XmlDeclaration: after the first node.
// DocumentType: after doctypedecl
// Element: inside document element
// EndElement: after document element
private XmlNodeType currentState;
- private int maybeTextDecl;
+
+ // For ReadChars()/ReadBase64()/ReadBinHex()
+ private bool shouldSkipUntilEndTag;
+ private byte [] base64Cache = new byte [3];
+ private int base64CacheStartsAt;
// These values are never re-initialized.
- private XmlResolver resolver = new XmlUrlResolver ();
private bool namespaces = true;
private WhitespaceHandling whitespaceHandling = WhitespaceHandling.All;
+ private XmlResolver resolver = new XmlUrlResolver ();
private bool normalization = false;
+ private bool checkCharacters;
+ private bool prohibitDtd = false;
+ private bool closeInput = true;
+ private EntityHandling entityHandling; // 2.0
+
private void Init ()
{
+ currentToken = new XmlTokenInfo (this, true);
+ cursorToken = currentToken;
+ currentAttribute = -1;
+ currentAttributeValue = -1;
+ attributeCount = 0;
+
readState = ReadState.Initial;
- currentState = XmlNodeType.None;
- maybeTextDecl = 0;
allowMultipleRoot = false;
depth = 0;
+ elementDepth = 0;
depthUp = false;
- popScope = false;
- parserInputStack = new Stack ();
- elementStack = new Stack();
-
- nodeType = XmlNodeType.None;
- name = String.Empty;
- prefix = String.Empty;
- localName = string.Empty;
- isEmptyElement = false;
- value = String.Empty;
-
- attributes = new Hashtable ();
- attributeString = String.Empty;
- orderedAttributes = new ArrayList ();
- orderedAttributesEnumerator = null;
+ popScope = allowMultipleRoot = false;
+ elementNames = new string [10];
+ elementNameStackPos = 0;
+ isStandalone = false;
returnEntityReference = false;
entityReferenceName = String.Empty;
nameBuffer = new char [initialNameCapacity];
nameLength = 0;
nameCapacity = initialNameCapacity;
-
- valueBuffer = new StringBuilder (8192);
- parameterEntities = new Hashtable ();
+
+ valueBuffer = new char [initialValueCapacity];
+ valueLength = 0;
+ valueCapacity = initialValueCapacity;
+
+ currentTagBuffer = new char [initialCurrentTagCapacity];
+ currentTagLength = 0;
+ currentTagCapacity = initialCurrentTagCapacity;
+
+ peekCharsIndex = 0;
+ peekCharsLength = 0;
+ if (peekChars == null)
+ peekChars = new char [peekCharCapacity];
+
+ line = 1;
+ column = 1;
+ currentTagLength = 0;
+
+ currentLinkedNodeLineNumber = currentLinkedNodeLinePosition = 0;
+ useProceedingLineInfo = false;
+
+ currentState = XmlNodeType.None;
+
+ shouldSkipUntilEndTag = false;
+ base64CacheStartsAt = -1;
+
+ checkCharacters = true;
+#if NET_2_0
+ if (Settings != null)
+ checkCharacters = Settings.CheckCharacters;
+#endif
+ prohibitDtd = false;
+ closeInput = true;
+ entityHandling = EntityHandling.ExpandCharEntities;
}
private void InitializeContext (string url, XmlParserContext context, TextReader fragment, XmlNodeType fragType)
{
+ startNodeType = fragType;
parserContext = context;
if (context == null) {
XmlNameTable nt = new NameTable ();
XmlSpace.None);
}
- if (url != null && url != String.Empty) {
- string path = Path.GetFullPath ("./a");
- Uri uri = new Uri (new Uri (path), url);
+ if (url != null && url.Length > 0) {
+ Uri uri = null;
+ try {
+ uri = new Uri (url);
+ } catch (Exception) {
+ string path = Path.GetFullPath ("./a");
+ uri = new Uri (new Uri (path), url);
+ }
parserContext.BaseURI = uri.ToString ();
}
Init ();
+ reader = fragment;
+
switch (fragType) {
case XmlNodeType.Attribute:
- value = String.Format ("{0}{1}{0}", "'", fragment.ReadToEnd ().Replace ("'", "'"));
+ reader = new StringReader (fragment.ReadToEnd ().Replace ("\"", """));
break;
case XmlNodeType.Element:
currentState = XmlNodeType.Element;
default:
throw new XmlException (String.Format ("NodeType {0} is not allowed to create XmlTextReader.", fragType));
}
+ }
+
+#if NET_2_0
+ [MonoTODO ("Test")]
+ internal ConformanceLevel Conformance {
+ set {
+ if (value == ConformanceLevel.Fragment) {
+ currentState = XmlNodeType.Element;
+ allowMultipleRoot = true;
+ }
+ }
+ }
+
+ internal void AdjustLineInfoOffset (int lineNumberOffset, int linePositionOffset)
+ {
+ line += lineNumberOffset;
+ column += linePositionOffset;
+ }
- this.currentInput = new XmlParserInput (fragment, url);
- StreamReader sr = fragment as StreamReader;
+ internal void SetNameTable (XmlNameTable nameTable)
+ {
+ parserContext.NameTable = nameTable;
}
+#endif
// Use this method rather than setting the properties
// directly so that all the necessary properties can
string value,
bool clearAttributes)
{
- this.nodeType = nodeType;
- this.name = name;
- this.isEmptyElement = isEmptyElement;
- this.value = value;
- this.elementDepth = depth;
- this.valueBuilderAvailable = false;
-
- if (clearAttributes)
- ClearAttributes ();
-
- if (namespaces) {
- int indexOfColon = name.IndexOf (':');
-
- if (indexOfColon == -1) {
- prefix = String.Empty;
- localName = name;
- } else {
- prefix = name.Substring (0, indexOfColon);
- localName = name.Substring (indexOfColon + 1);
- }
- } else {
- prefix = String.Empty;
- localName = name;
- }
-
- switch (nodeType) {
- case XmlNodeType.Attribute:
- if (prefix == string.Empty) namespaceURI = string.Empty;
- else namespaceURI = LookupNamespace (prefix);
- if (localName == "xmlns" && prefix == "")
- namespaceURI = "http://www.w3.org/2000/xmlns/";
- break;
-
- case XmlNodeType.Element:
- case XmlNodeType.EndElement:
- namespaceURI = LookupNamespace (prefix);
- break;
- default:
- namespaceURI = "";
- break;
- }
+ SetProperties (currentToken, nodeType, name, isEmptyElement, value, clearAttributes);
+ currentToken.LineNumber = this.currentLinkedNodeLineNumber;
+ currentToken.LinePosition = this.currentLinkedNodeLinePosition;
}
-
+
private void SetProperties (
+ XmlTokenInfo token,
XmlNodeType nodeType,
string name,
bool isEmptyElement,
- StringBuilder value,
- bool clearAttributes) {
- SetProperties (nodeType, name, isEmptyElement, (string)null, clearAttributes);
- this.valueBuilderAvailable = true;
- this.valueBuilder = value;
- }
-
- private void SaveProperties ()
+ string value,
+ bool clearAttributes)
{
- // If already saved, then return.
- if (isPropertySaved)
- return;
+ token.Clear ();
+ token.NodeType = nodeType;
+ token.Name = name;
+ token.IsEmptyElement = isEmptyElement;
+ token.Value = value;
+ this.elementDepth = depth;
+
+ if (clearAttributes)
+ ClearAttributes ();
- saveNodeType = nodeType;
- saveName = name;
- savePrefix = prefix;
- saveLocalName = localName;
- saveNamespaceURI = namespaceURI;
- saveIsEmptyElement = isEmptyElement;
- // An element's value is always String.Empty.
- isPropertySaved = true;
+ token.FillNames ();
}
- private void RestoreProperties ()
+ private void ClearAttributes ()
{
- nodeType = saveNodeType;
- name = saveName;
- prefix = savePrefix;
- localName = saveLocalName;
- namespaceURI = saveNamespaceURI;
- isEmptyElement = saveIsEmptyElement;
- value = String.Empty;
- isPropertySaved = false;
+ for (int i = 0; i < attributeCount; i++)
+ attributeTokens [i].Clear ();
+ attributeCount = 0;
+ currentAttribute = -1;
+ currentAttributeValue = -1;
}
- private void AddAttribute (string name, string value)
+ private int PeekChar ()
{
- if (attributes.ContainsKey (name))
- throw new XmlException (this as IXmlLineInfo,
- String.Format ("Attribute {0} already exists.", name));
- attributes.Add (name, value);
- orderedAttributes.Add (name);
+ if (peekCharsLength == peekCharsIndex) {
+ if (!ReadTextReader ())
+ return -1;
+ return PeekChar ();
+ }
+ else {
+ char c = peekChars [peekCharsIndex];
+ if (c != 0) return c;
+ else return -1;
+ }
}
- private void ClearAttributes ()
+ private int ReadChar ()
{
- if (attributes.Count > 0) {
- attributes.Clear ();
- orderedAttributes.Clear ();
+ int ch;
+
+ if (peekCharsLength == peekCharsIndex) {
+ if (!ReadTextReader ())
+ return -1;
+ return ReadChar ();
}
+ ch = peekChars [peekCharsIndex++];
- orderedAttributesEnumerator = null;
+ if (ch == '\n') {
+ line++;
+ column = 1;
+ } else if (ch == 0) {
+ return -1;
+ } else {
+ column++;
+ }
+ if (currentState != XmlNodeType.Element)
+ AppendCurrentTagChar (ch);
+ return ch;
}
- private int PeekChar ()
+ private bool ReadTextReader ()
{
- return currentInput.PeekChar ();
+ peekCharsIndex = 0;
+ peekCharsLength = reader.Read (peekChars, 0, peekCharCapacity);
+ if (peekCharsLength == 0)
+ return false;
+ return true;
}
- private int ReadChar ()
+ private string ExpandSurrogateChar (int ch)
{
- return currentInput.ReadChar ();
+ if (ch < Char.MaxValue)
+ return ((char) ch).ToString ();
+ else {
+ char [] tmp = new char [] {(char) (ch / 0x10000 + 0xD800 - 1), (char) (ch % 0x10000 + 0xDC00)};
+ return new string (tmp);
+ }
}
// This should really keep track of some state so
// element or text outside of the document element.
private bool ReadContent ()
{
- currentTag.Length = 0;
+ currentTagLength = 0;
if (popScope) {
parserContext.NamespaceManager.PopScope ();
popScope = false;
}
- if (returnEntityReference) {
+ if (returnEntityReference)
SetEntityReferenceProperties ();
- } else {
- switch (PeekChar ()) {
- case '<':
- ReadChar ();
- ReadTag ();
- break;
- case '\r': goto case ' ';
- case '\n': goto case ' ';
- case '\t': goto case ' ';
- case ' ':
- if (whitespaceHandling == WhitespaceHandling.All ||
- whitespaceHandling == WhitespaceHandling.Significant)
- return ReadWhitespace ();
-
- SkipWhitespace ();
- return ReadContent ();
- case -1:
- if (depth > 0)
- throw new XmlException ("unexpected end of file. Current depth is " + depth);
+ else {
+ int c = PeekChar ();
+ if (c == -1) {
readState = ReadState.EndOfFile;
+ ClearValueBuffer ();
SetProperties (
XmlNodeType.None, // nodeType
String.Empty, // name
false, // isEmptyElement
- String.Empty, // value
+ null, // value
true // clearAttributes
);
- break;
- default:
- ReadText (true);
- break;
+ if (depth > 0)
+ throw new XmlException ("unexpected end of file. Current depth is " + depth);
+
+ return false;
+ } else {
+ switch ((char) c) {
+ case '<':
+ ReadChar ();
+ ReadTag ();
+ break;
+ case '\r': goto case ' ';
+ case '\n': goto case ' ';
+ case '\t': goto case ' ';
+ case ' ':
+ if (whitespaceHandling == WhitespaceHandling.All ||
+ whitespaceHandling == WhitespaceHandling.Significant)
+ ReadWhitespace ();
+ else {
+ SkipWhitespace ();
+ return ReadContent ();
+ }
+ break;
+ default:
+ ReadText (true);
+ break;
+ }
}
}
return this.ReadState != ReadState.EndOfFile;
private void SetEntityReferenceProperties ()
{
+ DTDEntityDeclaration decl = DTD != null ? DTD.EntityDecls [entityReferenceName] : null;
+ if (this.isStandalone)
+ if (DTD == null || decl == null || !decl.IsInternalSubset)
+ throw new XmlException (this as IXmlLineInfo,
+ "Standalone document must not contain any references to an non-internally declared entity.");
+ if (decl != null && decl.NotationName != null)
+ throw new XmlException (this as IXmlLineInfo,
+ "Reference to any unparsed entities is not allowed here.");
+
+ ClearValueBuffer ();
SetProperties (
XmlNodeType.EntityReference, // nodeType
entityReferenceName, // name
false, // isEmptyElement
- String.Empty, // value
+ null, // value
true // clearAttributes
);
{
if (currentState == XmlNodeType.EndElement)
throw new XmlException (this as IXmlLineInfo,
- "Element cannot appear in this state.");
+ "Multiple document element was detected.");
currentState = XmlNodeType.Element;
parserContext.NamespaceManager.PushScope ();
+ currentLinkedNodeLineNumber = line;
+ currentLinkedNodeLinePosition = column;
+
string name = ReadName ();
if (currentState == XmlNodeType.EndElement)
throw new XmlException (this as IXmlLineInfo,"document has terminated, cannot open new element");
ClearAttributes ();
SkipWhitespace ();
- if (XmlConstructs.IsNameStart (PeekChar ()))
+ if (XmlChar.IsFirstNameChar (PeekChar ()))
ReadAttributes (false);
+ cursorToken = this.currentToken;
+
+ // fill namespaces
+ for (int i = 0; i < attributeCount; i++)
+ attributeTokens [i].FillNames ();
+
+ // quick name check
+ for (int i = 0; i < attributeCount; i++) {
+ for (int j = i + 1; j < attributeCount; j++)
+ if (Object.ReferenceEquals (attributeTokens [i].Name, attributeTokens [j].Name) ||
+ (Object.ReferenceEquals (attributeTokens [i].LocalName, attributeTokens [j].LocalName) &&
+ Object.ReferenceEquals (attributeTokens [i].NamespaceURI, attributeTokens [j].NamespaceURI)))
+ throw new XmlException (this as IXmlLineInfo,
+ "Attribute name and qualified name must be identical.");
+ }
string baseUri = GetAttribute ("xml:base");
- if (baseUri != null)
- parserContext.BaseURI = baseUri;
+ if (baseUri != null) {
+ if (this.resolver != null)
+ parserContext.BaseURI = resolver.ResolveUri (new Uri (BaseURI), baseUri).ToString ();
+ else
+ parserContext.BaseURI = baseUri;
+ }
string xmlLang = GetAttribute ("xml:lang");
if (xmlLang != null)
parserContext.XmlLang = xmlLang;
}
else {
depthUp = true;
- elementStack.Push (name);
+ PushElementName (name);
parserContext.PushScope ();
}
Expect ('>');
-
SetProperties (
XmlNodeType.Element, // nodeType
name, // name
isEmptyElement, // isEmptyElement
- String.Empty, // value
+ null, // value
false // clearAttributes
);
+
+ if (LookupNamespace (Prefix) == null)
+ throw new XmlException (String.Format ("'{0}' is undeclared namespace.", Prefix));
+ try {
+ for (int i = 0; i < attributeCount; i++) {
+ MoveToAttribute (i);
+ if (LookupNamespace (Prefix) == null)
+ throw new XmlException (String.Format ("'{0}' is undeclared namespace.", Prefix));
+ }
+ } finally {
+ MoveToElement ();
+ }
+
+ if (IsEmptyElement)
+ CheckCurrentStateUpdate ();
+ }
+
+ private void PushElementName (string name)
+ {
+ if (elementNames.Length == elementNameStackPos) {
+ string [] newArray = new string [elementNames.Length * 2];
+ Array.Copy (elementNames, 0, newArray, 0, elementNameStackPos);
+ elementNames = newArray;
+ }
+ elementNames [elementNameStackPos++] = name;
}
// The reader is positioned on the first character
throw new XmlException (this as IXmlLineInfo,
"End tag cannot appear in this state.");
+ currentLinkedNodeLineNumber = line;
+ currentLinkedNodeLinePosition = column;
+
string name = ReadName ();
- if (elementStack.Count == 0)
+ if (elementNameStackPos == 0)
throw new XmlException (this as IXmlLineInfo,"closing element without matching opening element");
- string expected = (string)elementStack.Pop();
+ string expected = elementNames [--elementNameStackPos];
if (expected != name)
throw new XmlException (this as IXmlLineInfo,String.Format ("unmatched closing element: expected {0} but found {1}", expected, name));
parserContext.PopScope ();
- SkipWhitespace ();
- Expect ('>');
+ ExpectAfterWhitespace ('>');
--depth;
XmlNodeType.EndElement, // nodeType
name, // name
false, // isEmptyElement
- String.Empty, // value
+ null, // value
true // clearAttributes
);
popScope = true;
+
+ CheckCurrentStateUpdate ();
}
- private void AppendNameChar (int ch)
+ private void CheckCurrentStateUpdate ()
{
- CheckNameCapacity ();
- nameBuffer [nameLength++] = (char)ch;
+ if (depth == 0 && !allowMultipleRoot && (IsEmptyElement || NodeType == XmlNodeType.EndElement))
+ currentState = XmlNodeType.EndElement;
}
- private void CheckNameCapacity ()
+ private void AppendNameChar (int ch)
{
- if (nameLength == nameCapacity) {
- nameCapacity = nameCapacity * 2;
- char [] oldNameBuffer = nameBuffer;
- nameBuffer = new char [nameCapacity];
- Array.Copy (oldNameBuffer, nameBuffer, nameLength);
+ if (nameLength == nameCapacity)
+ ExpandNameCapacity ();
+ if (ch < Char.MaxValue)
+ nameBuffer [nameLength++] = (char) ch;
+ else {
+ nameBuffer [nameLength++] = (char) (ch / 0x10000 + 0xD800 - 1);
+ if (nameLength == nameCapacity)
+ ExpandNameCapacity ();
+ nameBuffer [nameLength++] = (char) (ch % 0x10000 + 0xDC00);
}
}
+ private void ExpandNameCapacity ()
+ {
+ nameCapacity = nameCapacity * 2;
+ char [] oldNameBuffer = nameBuffer;
+ nameBuffer = new char [nameCapacity];
+ Array.Copy (oldNameBuffer, nameBuffer, nameLength);
+ }
+
private string CreateNameString ()
{
return parserContext.NameTable.Add (nameBuffer, 0, nameLength);
private void AppendValueChar (int ch)
{
- valueBuffer.Append ((char)ch);
+ if (valueLength == valueCapacity)
+ ExpandValueCapacity ();
+ if (ch < Char.MaxValue)
+ valueBuffer [valueLength++] = (char) ch;
+ else {
+ valueBuffer [valueLength++] = (char) (ch / 0x10000 + 0xD800 - 1);
+ if (valueLength == valueCapacity)
+ ExpandValueCapacity ();
+ valueBuffer [valueLength++] = (char) (ch % 0x10000 + 0xDC00);
+ }
+ }
+
+ private void ExpandValueCapacity ()
+ {
+ valueCapacity = valueCapacity * 2;
+ char [] oldValueBuffer = valueBuffer;
+ valueBuffer = new char [valueCapacity];
+ Array.Copy (oldValueBuffer, valueBuffer, valueLength);
}
private string CreateValueString ()
{
- return valueBuffer.ToString ();
+ return new string (valueBuffer, 0, valueLength);
}
-
+
private void ClearValueBuffer ()
{
- valueBuffer.Length = 0;
+ valueLength = 0;
}
- // The reader is positioned on the first character
- // of the text.
- private void ReadText (bool cleanValue)
+ private void AppendCurrentTagChar (int ch)
{
- if (currentState != XmlNodeType.Element)
- throw new XmlException (this as IXmlLineInfo,
- "Text node cannot appear in this state.");
+ if (currentTagLength == currentTagCapacity)
+ ExpandCurrentTagCapacity ();
+ if (ch < Char.MaxValue)
+ currentTagBuffer [currentTagLength++] = (char) ch;
+ else {
+ currentTagBuffer [currentTagLength++] = (char) (ch / 0x10000 + 0xD800 - 1);
+ if (currentTagLength == currentTagCapacity)
+ ExpandCurrentTagCapacity ();
+ currentTagBuffer [currentTagLength++] = (char) (ch % 0x10000 + 0xDC00);
+ }
+ }
+
+ private void ExpandCurrentTagCapacity ()
+ {
+ currentTagCapacity = currentTagCapacity * 2;
+ char [] oldCurrentTagBuffer = currentTagBuffer;
+ currentTagBuffer = new char [currentTagCapacity];
+ Array.Copy (oldCurrentTagBuffer, currentTagBuffer, currentTagLength);
+ }
+
+ private string CreateCurrentTagString ()
+ {
+ return new string (currentTagBuffer, 0, currentTagLength);
+ }
+
+ private void ClearCurrentTagBuffer ()
+ {
+ currentTagLength = 0;
+ }
+
+ // The reader is positioned on the first character
+ // of the text.
+ private void ReadText (bool notWhitespace)
+ {
+ if (currentState != XmlNodeType.Element)
+ throw new XmlException (this as IXmlLineInfo,
+ "Text node cannot appear in this state.");
- if (cleanValue)
+ if (notWhitespace)
ClearValueBuffer ();
int ch = PeekChar ();
+ bool previousWasCloseBracket = false;
while (ch != '<' && ch != -1) {
if (ch == '&') {
ReadChar ();
- if (ReadReference (false))
+ ch = ReadReference (false);
+ if (returnEntityReference) // Returns -1 if char validation should not be done
break;
- } else
- AppendValueChar (ReadChar ());
+ } else if (normalization && ch == '\r') {
+ ReadChar ();
+ ch = ReadChar ();
+ if (ch != '\n')
+ // append '\n' instead of '\r'.
+ AppendValueChar ('\n');
+ // and in case of "\r\n", discard '\r'.
+ } else {
+ if (CharacterChecking && XmlChar.IsInvalid (ch))
+ throw new XmlException (this, "Not allowed character was found.");
+ ch = ReadChar ();
+ }
+ AppendValueChar (ch);
+
+ // Block "]]>"
+ if (ch == ']') {
+ if (previousWasCloseBracket)
+ if (PeekChar () == '>')
+ throw new XmlException (this as IXmlLineInfo,
+ "Inside text content, character sequence ']]>' is not allowed.");
+ previousWasCloseBracket = true;
+ }
+ else if (previousWasCloseBracket)
+ previousWasCloseBracket = false;
ch = PeekChar ();
+ notWhitespace = true;
}
- if (returnEntityReference && valueBuffer.Length == 0) {
+ if (returnEntityReference && valueLength == 0) {
SetEntityReferenceProperties ();
} else {
+ XmlNodeType nodeType = notWhitespace ? XmlNodeType.Text :
+ this.XmlSpace == XmlSpace.Preserve ? XmlNodeType.SignificantWhitespace : XmlNodeType.Whitespace;
SetProperties (
- XmlNodeType.Text, // nodeType
+ nodeType, // nodeType
String.Empty, // name
false, // isEmptyElement
- valueBuffer, // value
+ null, // value: create only when required
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 int ReadReference (bool ignoreEntityReferences)
{
if (PeekChar () == '#') {
ReadChar ();
- ReadCharacterReference ();
+ return ReadCharacterReference ();
} else
- ReadEntityReference (ignoreEntityReferences);
-
- return returnEntityReference;
+ return ReadEntityReference (ignoreEntityReferences);
}
- private void ReadCharacterReference ()
+ private int ReadCharacterReference ()
{
int value = 0;
value = (value << 4) + ch - 'a' + 10;
else
throw new XmlException (this as IXmlLineInfo,
- String.Format (
+ String.Format (CultureInfo.InvariantCulture,
"invalid hexadecimal digit: {0} (#x{1:X})",
- (char)ch,
+ (char) ch,
ch));
}
} else {
value = value * 10 + ch - '0';
else
throw new XmlException (this as IXmlLineInfo,
- String.Format (
+ String.Format (CultureInfo.InvariantCulture,
"invalid decimal digit: {0} (#x{1:X})",
- (char)ch,
+ (char) ch,
ch));
}
}
ReadChar (); // ';'
- AppendValueChar (value);
+ // There is no way to save surrogate pairs...
+ if (CharacterChecking && XmlChar.IsInvalid (value))
+ throw new XmlException (this as IXmlLineInfo,
+ "Referenced character was not allowed in XML. Normalization is " + normalization + ", checkCharacters = " + checkCharacters);
+ return value;
}
- private void ReadEntityReference (bool ignoreEntityReferences)
+ // Returns -1 if it should not be validated.
+ // Real EOF must not be detected here.
+ private int ReadEntityReference (bool ignoreEntityReferences)
{
- nameLength = 0;
-
- int ch = PeekChar ();
-
- while (ch != ';' && ch != -1) {
- AppendNameChar (ReadChar ());
- ch = PeekChar ();
- }
-
+ string name = ReadName ();
Expect (';');
- string name = CreateNameString ();
-
- switch (name)
- {
- case "lt":
- AppendValueChar ('<');
- break;
- case "gt":
- AppendValueChar ('>');
- break;
- case "amp":
+ int predefined = XmlChar.GetPredefinedEntity (name);
+ if (predefined >= 0)
+ return predefined;
+ else {
+ if (ignoreEntityReferences) {
AppendValueChar ('&');
- break;
- case "apos":
- AppendValueChar ('\'');
- break;
- case "quot":
- AppendValueChar ('"');
- break;
- default:
- if (ignoreEntityReferences) {
- AppendValueChar ('&');
-
- foreach (char ch2 in name) {
- AppendValueChar (ch2);
- }
-
- AppendValueChar (';');
- } else {
- returnEntityReference = true;
- entityReferenceName = name;
- }
- break;
+ for (int i = 0; i < name.Length; i++)
+ AppendValueChar (name [i]);
+ AppendValueChar (';');
+ } else {
+ returnEntityReference = true;
+ entityReferenceName = name;
+ }
}
+ return -1;
}
// The reader is positioned on the first character of
// the attribute name.
- private void ReadAttributes (bool allowPIEnd)
+ private void ReadAttributes (bool isXmlDecl)
{
int peekChar = -1;
bool requireWhitespace = false;
+ currentAttribute = -1;
+ currentAttributeValue = -1;
+
do {
if (!SkipWhitespace () && requireWhitespace)
throw new XmlException ("Unexpected token. Name is required here.");
- string name = ReadName ();
- SkipWhitespace ();
- Expect ('=');
- SkipWhitespace ();
- string value = ReadAttribute ();
- if (name == "xmlns")
- parserContext.NamespaceManager.AddNamespace (String.Empty, UnescapeAttributeValue (value));
- else if (name.StartsWith ("xmlns:"))
- parserContext.NamespaceManager.AddNamespace (name.Substring (6), UnescapeAttributeValue (value));
+ IncrementAttributeToken ();
+ currentAttributeToken.LineNumber = line;
+ currentAttributeToken.LinePosition = column;
- AddAttribute (name, value);
+ currentAttributeToken.LocalName =
+ currentAttributeToken.Name = ReadName ();
+ ExpectAfterWhitespace ('=');
+ SkipWhitespace ();
+ ReadAttributeValueTokens (-1);
+ attributeCount++;
+
+ if (currentAttributeToken.Name == "xmlns")
+ parserContext.NamespaceManager.AddNamespace (String.Empty, GetAttribute (currentAttribute));
+ else if (currentAttributeToken.Name.StartsWith ("xmlns:")) {
+ string nsPrefix = currentAttributeToken.Name.Substring (6);
+ parserContext.NamespaceManager.AddNamespace (nsPrefix, GetAttribute (currentAttribute));
+ }
- if (XmlConstructs.IsSpace (PeekChar ()))
- SkipWhitespace ();
- else
+ if (!SkipWhitespace ())
requireWhitespace = true;
peekChar = PeekChar ();
- if (peekChar == '?' && allowPIEnd)
+ if (isXmlDecl) {
+ if (peekChar == '?')
+ break;
+ }
+ else if (peekChar == '/' || peekChar == '>')
break;
- } while (peekChar != '/' && peekChar != '>' && peekChar != -1);
+ } while (peekChar != -1);
+
+ currentAttribute = -1;
+ currentAttributeValue = -1;
+ }
+
+ private void AddAttribute (string name, string value)
+ {
+ IncrementAttributeToken ();
+ XmlAttributeTokenInfo ati = attributeTokens [currentAttribute];
+ ati.Name = "SYSTEM";
+ ati.FillNames ();
+ IncrementAttributeValueToken ();
+ XmlTokenInfo vti = attributeValueTokens [currentAttributeValue];
+ vti.Value = value;
+ SetProperties (vti, XmlNodeType.Text, String.Empty, false, value, false);
+ attributeCount++;
+ }
+
+ private void IncrementAttributeToken ()
+ {
+ currentAttribute++;
+ if (attributeTokens.Length == currentAttribute) {
+ XmlAttributeTokenInfo [] newArray =
+ new XmlAttributeTokenInfo [attributeTokens.Length * 2];
+ attributeTokens.CopyTo (newArray, 0);
+ attributeTokens = newArray;
+ }
+ if (attributeTokens [currentAttribute] == null)
+ attributeTokens [currentAttribute] = new XmlAttributeTokenInfo (this);
+ currentAttributeToken = attributeTokens [currentAttribute];
+ currentAttributeToken.Clear ();
}
- // The reader is positioned on the quote character.
- // *Keeps quote char* to value to get_QuoteChar() correctly.
- private string ReadAttribute ()
+ private void IncrementAttributeValueToken ()
{
ClearValueBuffer ();
+ currentAttributeValue++;
+ if (attributeValueTokens.Length == currentAttributeValue) {
+ XmlTokenInfo [] newArray = new XmlTokenInfo [attributeValueTokens.Length * 2];
+ attributeValueTokens.CopyTo (newArray, 0);
+ attributeValueTokens = newArray;
+ }
+ if (attributeValueTokens [currentAttributeValue] == null)
+ attributeValueTokens [currentAttributeValue] = new XmlTokenInfo (this, false);
+ currentAttributeValueToken = attributeValueTokens [currentAttributeValue];
+ currentAttributeValueToken.Clear ();
+ }
- int quoteChar = ReadChar ();
+ // LAMESPEC: Orthodox XML reader should normalize attribute values
+ private void ReadAttributeValueTokens (int dummyQuoteChar)
+ {
+ int quoteChar = (dummyQuoteChar < 0) ? ReadChar () : dummyQuoteChar;
if (quoteChar != '\'' && quoteChar != '\"')
throw new XmlException (this as IXmlLineInfo,"an attribute value was not quoted");
+ currentAttributeToken.QuoteChar = (char) quoteChar;
- AppendValueChar (quoteChar);
+ IncrementAttributeValueToken ();
+ currentAttributeToken.ValueTokenStartIndex = currentAttributeValue;
+ currentAttributeValueToken.LineNumber = line;
+ currentAttributeValueToken.LinePosition = column;
- while (PeekChar () != quoteChar) {
- int ch = ReadChar ();
+ bool incrementToken = false;
+ bool isNewToken = true;
+ bool loop = true;
+ int ch = 0;
+ while (loop) {
+ ch = ReadChar ();
+ if (ch == quoteChar)
+ break;
+
+ if (incrementToken) {
+ IncrementAttributeValueToken ();
+ currentAttributeValueToken.LineNumber = line;
+ currentAttributeValueToken.LinePosition = column;
+ incrementToken = false;
+ isNewToken = true;
+ }
switch (ch)
{
case '<':
throw new XmlException (this as IXmlLineInfo,"attribute values cannot contain '<'");
case -1:
- throw new XmlException (this as IXmlLineInfo,"unexpected end of file in an attribute value");
+ if (dummyQuoteChar < 0)
+ throw new XmlException (this as IXmlLineInfo,"unexpected end of file in an attribute value");
+ else // Attribute value constructor.
+ loop = false;
+ break;
+ case '&':
+ int startPosition = currentTagLength - 1;
+ if (PeekChar () == '#') {
+ ReadChar ();
+ ch = ReadCharacterReference ();
+ if (CharacterChecking && XmlChar.IsInvalid (ch))
+ throw new XmlException (this as IXmlLineInfo,
+ "Not allowed character was found.");
+ AppendValueChar (ch);
+ break;
+ }
+ // Check XML 1.0 section 3.1 WFC.
+ string entName = ReadName ();
+ Expect (';');
+ int predefined = XmlChar.GetPredefinedEntity (entName);
+ if (predefined < 0) {
+ CheckAttributeEntityReferenceWFC (entName);
+ currentAttributeValueToken.Value = CreateValueString ();
+ currentAttributeValueToken.NodeType = XmlNodeType.Text;
+ if (!isNewToken)
+ IncrementAttributeValueToken ();
+ currentAttributeValueToken.Name = entName;
+ currentAttributeValueToken.Value = String.Empty;
+ currentAttributeValueToken.NodeType = XmlNodeType.EntityReference;
+ incrementToken = true;
+ }
+ else
+ AppendValueChar (predefined);
+ break;
default:
+ if (CharacterChecking && XmlChar.IsInvalid (ch))
+ throw new XmlException (this, "Invalid character was found.");
AppendValueChar (ch);
break;
}
+
+ isNewToken = false;
+ }
+ if (!incrementToken) {
+ currentAttributeValueToken.Value = CreateValueString ();
+ currentAttributeValueToken.NodeType = XmlNodeType.Text;
}
+ currentAttributeToken.ValueTokenEndIndex = currentAttributeValue;
- ReadChar (); // quoteChar
- AppendValueChar (quoteChar);
+ }
- return CreateValueString ();
+ private void CheckAttributeEntityReferenceWFC (string entName)
+ {
+ DTDEntityDeclaration entDecl =
+ DTD == null ? null : DTD.EntityDecls [entName];
+ if (DTD != null && resolver != null && entDecl == null)
+ throw new XmlException (this, "Referenced entity does not exist.");
+
+ if (entDecl == null)
+ return;
+
+ if (entDecl.HasExternalReference)
+ throw new XmlException (this, "Reference to external entities is not allowed in the value of an attribute.");
+ if (isStandalone && !entDecl.IsInternalSubset)
+ throw new XmlException (this, "Reference to external entities is not allowed in the internal subset.");
+ if (entDecl.EntityValue.IndexOf ('<') >= 0)
+ throw new XmlException (this, "Attribute must not contain character '<' either directly or indirectly by way of entity references.");
}
// The reader is positioned on the first character
if (target == "xml") {
ReadXmlDeclaration ();
return;
- }
+ } else if (target.ToLower (CultureInfo.InvariantCulture) == "xml")
+ throw new XmlException (this as IXmlLineInfo,
+ "Not allowed processing instruction name which starts with 'X', 'M', 'L' was found.");
+
if (currentState == XmlNodeType.None)
currentState = XmlNodeType.XmlDeclaration;
- SkipWhitespace ();
+ if (!SkipWhitespace ())
+ if (PeekChar () != '?')
+ throw new XmlException (this as IXmlLineInfo,
+ "Invalid processing instruction name was found.");
ClearValueBuffer ();
break;
}
- AppendValueChar ((char)ch);
+ if (CharacterChecking && XmlChar.IsInvalid (ch))
+ throw new XmlException (this, "Invalid character was found.");
+ AppendValueChar (ch);
}
SetProperties (
XmlNodeType.ProcessingInstruction, // nodeType
target, // name
false, // isEmptyElement
- valueBuffer, // value
+ null, // value: create only when required
true // clearAttributes
);
}
private void ReadXmlDeclaration ()
{
if (currentState != XmlNodeType.None) {
- if (maybeTextDecl == 0)
- throw new XmlException (this as IXmlLineInfo,
- "XML declaration cannot appear in this state.");
+ throw new XmlException (this as IXmlLineInfo,
+ "XML declaration cannot appear in this state.");
}
currentState = XmlNodeType.XmlDeclaration;
ClearAttributes ();
ReadAttributes (true); // They must have "version."
- Expect ("?>");
+ string version = GetAttribute ("version");
- if (maybeTextDecl != 0)
- if (this ["standalone"] != null)
- throw new XmlException (this as IXmlLineInfo,
- "Invalid text declaration.");
- maybeTextDecl = 0;
+ string message = null;
+
+ if (attributeTokens [0].Name != "version" || version != "1.0")
+ message = "Version 1.0 declaration is required in XML Declaration.";
+ else if (attributeCount > 1 &&
+ (attributeTokens [1].Name != "encoding" &&
+ attributeTokens [1].Name != "standalone"))
+ message = "Invalid Xml Declaration markup was found.";
+ else if (attributeCount > 2 && attributeTokens [2].Name != "standalone")
+ message = "Invalid Xml Declaration markup was found.";
+ string sa = GetAttribute ("standalone");
+ if (sa != null && sa != "yes" && sa != "no")
+ message = "Only 'yes' or 'no' is allowed for standalone.";
+
+ this.isStandalone = (sa == "yes");
+
+ if (message != null)
+ throw new XmlException (this as IXmlLineInfo, message);
SetProperties (
XmlNodeType.XmlDeclaration, // nodeType
"xml", // name
false, // isEmptyElement
- currentInput.CurrentMarkup.ToString (6, currentInput.CurrentMarkup.Length - 6), // value
+ new string (currentTagBuffer, 6, currentTagLength - 6), // value
false // clearAttributes
);
+
+ Expect ("?>");
+ }
+
+ internal void SkipTextDeclaration ()
+ {
+ this.currentState = XmlNodeType.Element;
+
+ if (PeekChar () != '<')
+ return;
+
+ ReadChar ();
+
+ if (PeekChar () != '?') {
+ peekCharsIndex = 0;
+ return;
+ }
+ ReadChar ();
+
+ while (peekCharsIndex < 6) {
+ if (PeekChar () < 0)
+ break;
+ else
+ ReadChar ();
+ }
+ if (new string (peekChars, 2, 4) != "xml ") {
+ if (new string (peekChars, 2, 3).ToLower (CultureInfo.InvariantCulture) == "xml") {
+ throw new XmlException (this as IXmlLineInfo,
+ "Processing instruction name must not be character sequence 'X' 'M' 'L' with case insensitivity.");
+ }
+ peekCharsIndex = 0;
+ return;
+ }
+
+ SkipWhitespace ();
+
+ // version decl
+ if (PeekChar () == 'v') {
+ Expect ("version");
+ ExpectAfterWhitespace ('=');
+ SkipWhitespace ();
+ int quoteChar = ReadChar ();
+ char [] expect1_0 = new char [3];
+ int versionLength = 0;
+ switch (quoteChar) {
+ case '\'':
+ case '"':
+ while (PeekChar () != quoteChar) {
+ if (PeekChar () == -1)
+ throw new XmlException (this as IXmlLineInfo,
+ "Invalid version declaration inside text declaration.");
+ else if (versionLength == 3)
+ throw new XmlException (this as IXmlLineInfo,
+ "Invalid version number inside text declaration.");
+ else {
+ expect1_0 [versionLength] = (char) ReadChar ();
+ versionLength++;
+ if (versionLength == 3 && new String (expect1_0) != "1.0")
+ throw new XmlException (this as IXmlLineInfo,
+ "Invalid version number inside text declaration.");
+ }
+ }
+ ReadChar ();
+ SkipWhitespace ();
+ break;
+ default:
+ throw new XmlException (this as IXmlLineInfo,
+ "Invalid version declaration inside text declaration.");
+ }
+ }
+
+ if (PeekChar () == 'e') {
+ Expect ("encoding");
+ ExpectAfterWhitespace ('=');
+ SkipWhitespace ();
+ int quoteChar = ReadChar ();
+ switch (quoteChar) {
+ case '\'':
+ case '"':
+ while (PeekChar () != quoteChar)
+ if (ReadChar () == -1)
+ throw new XmlException (this as IXmlLineInfo,
+ "Invalid encoding declaration inside text declaration.");
+ ReadChar ();
+ SkipWhitespace ();
+ break;
+ default:
+ throw new XmlException (this as IXmlLineInfo,
+ "Invalid encoding declaration inside text declaration.");
+ }
+ // Encoding value should be checked inside XmlInputStream.
+ }
+ else
+ throw new XmlException (this as IXmlLineInfo,
+ "Encoding declaration is mandatory in text declaration.");
+
+ Expect ("?>");
}
// The reader is positioned on the first character after
Expect ("DOCTYPE");
ReadDoctypeDecl ();
break;
+ default:
+ throw new XmlException (this as IXmlLineInfo,
+ "Unexpected declaration markup was found.");
}
}
break;
}
- AppendValueChar ((char)ch);
+ if (XmlChar.IsInvalid (ch))
+ throw new XmlException (this as IXmlLineInfo,
+ "Not allowed character was found.");
+
+ AppendValueChar (ch);
}
SetProperties (
XmlNodeType.Comment, // nodeType
String.Empty, // name
false, // isEmptyElement
- valueBuffer, // value
+ null, // value: create only when required
true // clearAttributes
);
}
break;
} else {
skip = true;
-// AppendValueChar (']');
-// AppendValueChar (']');
-// ch = ReadChar ();
}
}
+ if (normalization && ch == '\r') {
+ ch = PeekChar ();
+ if (ch != '\n')
+ // append '\n' instead of '\r'.
+ AppendValueChar ('\n');
+ // otherwise, discard '\r'.
+ continue;
+ }
+ if (CharacterChecking && XmlChar.IsInvalid (ch))
+ throw new XmlException (this, "Invalid character was found.");
- AppendValueChar ((char)ch);
+ AppendValueChar (ch);
}
SetProperties (
XmlNodeType.CDATA, // nodeType
String.Empty, // name
false, // isEmptyElement
- valueBuffer, // value
+ null, // value: create only when required
true // clearAttributes
);
}
// the leading '<!DOCTYPE'.
private void ReadDoctypeDecl ()
{
+ if (prohibitDtd)
+ throw new XmlException (this as IXmlLineInfo,
+ "Document Type Declaration (DTD) is prohibited in this XML.");
switch (currentState) {
case XmlNodeType.DocumentType:
case XmlNodeType.Element:
currentState = XmlNodeType.DocumentType;
string doctypeName = null;
- string publicId = String.Empty;
- string systemId = String.Empty;
+ string publicId = null;
+ string systemId = null;
int intSubsetStartLine = 0;
int intSubsetStartColumn = 0;
break;
case 'P':
publicId = ReadPubidLiteral ();
- SkipWhitespace ();
+ if (!SkipWhitespace ())
+ throw new XmlException (this as IXmlLineInfo,
+ "Whitespace is required between PUBLIC id and SYSTEM id.");
systemId = ReadSystemLiteral (false);
break;
}
ReadChar ();
intSubsetStartLine = this.LineNumber;
intSubsetStartColumn = this.LinePosition;
- int startPos = currentTag.Length;
- isIntSubset = true;
+ int startPos = currentTagLength;
ReadInternalSubset ();
- isIntSubset = false;
- int endPos = currentTag.Length - 1;
- parserContext.InternalSubset = currentTag.ToString (startPos, endPos - startPos);
+ int endPos = currentTagLength - 1;
+ parserContext.InternalSubset = new string (currentTagBuffer, startPos, endPos - startPos);
}
// end of DOCTYPE decl.
- SkipWhitespace ();
- Expect ('>');
+ ExpectAfterWhitespace ('>');
GenerateDTDObjectModel (doctypeName, publicId,
systemId, parserContext.InternalSubset,
parserContext.InternalSubset, // value
true // clearAttributes
);
+
+ if (publicId != null)
+ AddAttribute ("PUBLIC", publicId);
+ if (systemId != null)
+ AddAttribute ("SYSTEM", systemId);
+ currentAttribute = currentAttributeValue = -1;
}
internal DTDObjectModel GenerateDTDObjectModel (string name, string publicId,
string systemId, string internalSubset, int intSubsetStartLine, int intSubsetStartColumn)
{
// now compile DTD
- DTD = new DTDObjectModel (); // merges both internal and external subsets in the meantime,
+ parserContext.Dtd = new DTDObjectModel (this.NameTable); // merges both internal and external subsets in the meantime,
+ DTD.BaseURI = BaseURI;
DTD.Name = name;
- int originalParserDepth = parserInputStack.Count;
- if (internalSubset != null && internalSubset.Length > 0) {
- XmlParserInput original = currentInput;
- currentInput = new XmlParserInput (new StringReader (internalSubset), BaseURI, intSubsetStartLine, intSubsetStartColumn);
- do {
- CompileDTDSubset ();
- if (PeekChar () == -1 && parserInputStack.Count > 0)
- PopParserInput ();
- } while (nodeType != XmlNodeType.None || parserInputStack.Count > originalParserDepth);
- if (dtdIncludeSect != 0)
- throw new XmlException (this as IXmlLineInfo,"INCLUDE section is not ended correctly.");
- currentInput = original;
- }
- if (systemId != null && systemId != String.Empty && resolver != null) {
- PushParserInput (systemId);
- do {
- this.CompileDTDSubset ();
- if (PeekChar () == -1 && parserInputStack.Count > 1)
- PopParserInput ();
- } while (nodeType != XmlNodeType.None || parserInputStack.Count > originalParserDepth + 1);
- PopParserInput ();
- }
-
- return DTD;
- }
-
- private void PushParserInput (string url)
- {
- Uri baseUri = null;
- try {
- baseUri = new Uri (BaseURI);
- } catch (UriFormatException) {
- }
+ DTD.PublicId = publicId;
+ DTD.SystemId = systemId;
+ DTD.InternalSubset = internalSubset;
+ DTD.XmlResolver = resolver;
+ DTD.IsStandalone = isStandalone;
+ DTD.LineNumber = line;
+ DTD.LinePosition = column;
- Uri absUri = resolver.ResolveUri (baseUri, url);
- string absPath = absUri.ToString ();
-
- foreach (XmlParserInput i in parserInputStack.ToArray ()) {
- if (i.BaseURI == absPath)
- throw new XmlException (this as IXmlLineInfo, "Nested inclusion is not allowed: " + url);
- }
- parserInputStack.Push (currentInput);
- currentInput = new XmlParserInput (new XmlStreamReader (url, false, resolver, BaseURI), absPath);
- parserContext.PushScope ();
- parserContext.BaseURI = absPath;
-
- maybeTextDecl = 2;
+ DTDReader dr = new DTDReader (DTD, intSubsetStartLine, intSubsetStartColumn);
+ dr.Normalization = this.normalization;
+#if DTD_HANDLE_EVENTS
+ dr.ValidationEventHandler += new ValidationEventHandler (OnValidationEvent);
+#endif
+ return dr.GenerateDTDObjectModel ();
}
- private void PopParserInput ()
+ private void OnValidationEvent (object o, ValidationEventArgs e)
{
- currentInput = parserInputStack.Pop () as XmlParserInput;
- parserContext.PopScope ();
+#if DTD_HANDLE_EVENTS
+ if (ValidationEventHandler != null)
+ // Override object as this.
+ ValidationEventHandler (this, e);
+#endif
}
private enum DtdInputState
case -1:
throw new XmlException (this as IXmlLineInfo,"unexpected end of file at DTD.");
case '<':
- if (State == DtdInputState.InsideDoubleQuoted ||
- State == DtdInputState.InsideSingleQuoted)
+ switch (State) {
+ case DtdInputState.InsideDoubleQuoted:
+ case DtdInputState.InsideSingleQuoted:
+ case DtdInputState.Comment:
continue; // well-formed
- switch (ReadChar ()) {
+ }
+ int c = ReadChar ();
+ switch (c) {
case '?':
stateStack.Push (DtdInputState.PI);
break;
}
break;
default:
- throw new XmlException (this as IXmlLineInfo,"unexpected '>'.");
+ throw new XmlException (this as IXmlLineInfo, String.Format ("unexpected '<{0}'.", (char) c));
}
break;
case '\'':
stateStack.Pop ();
break;
case DtdInputState.InsideDoubleQuoted:
- continue;
case DtdInputState.InsideSingleQuoted:
- continue; // well-formed
case DtdInputState.Comment:
continue;
default:
}
}
- // 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 CompileDTDSubset()
+ // The reader is positioned on the first 'S' of "SYSTEM".
+ private string ReadSystemLiteral (bool expectSYSTEM)
{
- SkipWhitespace ();
- switch(PeekChar ())
- {
- case -1:
- nodeType = XmlNodeType.None;
- break;
- case '%':
- // It affects on entity references' well-formedness
- if (isIntSubset)
- DTD.InternalSubsetHasPEReference = true;
- TryExpandPERef ();
- break;
- case '<':
- ReadChar ();
- switch(ReadChar ())
- {
- case '?':
- // Only read, no store.
- ReadProcessingInstruction ();
- break;
- case '!':
- CompileDeclaration ();
- break;
- default:
- throw new XmlException (this as IXmlLineInfo,"Syntax Error after '<' character.");
- }
- break;
- case ']':
- // End of inclusion
- Expect ("]]>");
- dtdIncludeSect--;
+ if(expectSYSTEM) {
+ Expect ("SYSTEM");
+ if (!SkipWhitespace ())
+ throw new XmlException (this as IXmlLineInfo,
+ "Whitespace is required after 'SYSTEM'.");
+ }
+ else
SkipWhitespace ();
- break;
- default:
- throw new XmlException (this as IXmlLineInfo,String.Format ("Syntax Error inside doctypedecl markup : {0}({1})", PeekChar (), (char) PeekChar ()));
+ int quoteChar = ReadChar (); // apos or quot
+ int startPos = currentTagLength;
+ int c = 0;
+ ClearValueBuffer ();
+ while (c != quoteChar) {
+ c = ReadChar ();
+ if (c < 0)
+ throw new XmlException (this as IXmlLineInfo,"Unexpected end of stream in ExternalID.");
+ if (c != quoteChar)
+ AppendValueChar (c);
}
+ return CreateValueString ();
}
- private void CompileDeclaration ()
+ private string ReadPubidLiteral()
{
- nodeType = XmlNodeType.DocumentType; // Hack!!
- switch(ReadChar ())
+ Expect ("PUBLIC");
+ if (!SkipWhitespace ())
+ throw new XmlException (this as IXmlLineInfo,
+ "Whitespace is required after 'PUBLIC'.");
+ int quoteChar = ReadChar ();
+ int startPos = currentTagLength;
+ int c = 0;
+ ClearValueBuffer ();
+ while(c != quoteChar)
{
- case '-':
- Expect ('-');
- // Only read, no store.
- ReadComment ();
- break;
- case 'E':
- switch(ReadChar ())
- {
- case 'N':
- Expect ("TITY");
- SkipWhitespace ();
- LOOPBACK:
- if (PeekChar () == '%') {
- ReadChar ();
- if (!XmlConstructs.IsSpace (PeekChar ())) {
- ExpandPERef ();
- goto LOOPBACK;
-// throw new XmlException (this as IXmlLineInfo,"expected whitespace between '%' and name.");
- } else {
- SkipWhitespace ();
- TryExpandPERef ();
- if (XmlConstructs.IsName (PeekChar ()))
- ReadParameterEntityDecl ();
- else
- throw new XmlException (this as IXmlLineInfo,"expected name character");
- }
- break;
- }
- DTDEntityDeclaration ent = ReadEntityDecl ();
- if (DTD.EntityDecls [ent.Name] == null)
- DTD.EntityDecls.Add (ent.Name, ent);
- break;
- case 'L':
- Expect ("EMENT");
- DTDElementDeclaration el = ReadElementDecl ();
- DTD.ElementDecls.Add (el.Name, el);
- break;
- default:
- throw new XmlException (this as IXmlLineInfo,"Syntax Error after '<!E' (ELEMENT or ENTITY must be found)");
- }
- break;
- case 'A':
- Expect ("TTLIST");
- DTDAttListDeclaration atl = ReadAttListDecl ();
-// if (DTD.AttListDecls.ContainsKey (atl.Name))
- DTD.AttListDecls.Add (atl.Name, atl);
- break;
- case 'N':
- Expect ("OTATION");
- DTDNotationDeclaration not = ReadNotationDecl ();
- DTD.NotationDecls.Add (not.Name, not);
- break;
- case '[':
- // conditional sections
- SkipWhitespace ();
- TryExpandPERef ();
- SkipWhitespace ();
- Expect ('I');
- switch (ReadChar ()) {
- case 'N':
- Expect ("CLUDE");
- SkipWhitespace ();
- Expect ('[');
- dtdIncludeSect++;
- break;
- case 'G':
- Expect ("NORE");
- ReadIgnoreSect ();
- break;
- }
- break;
- default:
- throw new XmlException (this as IXmlLineInfo,"Syntax Error after '<!' characters.");
+ c = ReadChar ();
+ if(c < 0) throw new XmlException (this as IXmlLineInfo,"Unexpected end of stream in ExternalID.");
+ if(c != quoteChar && !XmlChar.IsPubidChar (c))
+ throw new XmlException (this as IXmlLineInfo,"character '" + (char) c + "' not allowed for PUBLIC ID");
+ if (c != quoteChar)
+ AppendValueChar (c);
}
- }
-
- private void ReadIgnoreSect ()
- {
- bool skip = false;
- SkipWhitespace ();
- Expect ('[');
- int dtdIgnoreSect = 1;
- while (dtdIgnoreSect > 0) {
- switch (skip ? PeekChar () : ReadChar ()) {
- case -1:
- throw new XmlException (this as IXmlLineInfo,"Unexpected IGNORE section end.");
- case '<':
- if (ReadChar () == '!' && ReadChar () == '[')
- dtdIgnoreSect++;
- break;
- case ']':
- if (ReadChar () == ']') {
- if (ReadChar () == '>')
- dtdIgnoreSect--;
- else
- skip = true;
- }
- break;
- }
- skip = false;
- }
- }
-
- // The reader is positioned on the head of the name.
- private DTDElementDeclaration ReadElementDecl ()
- {
- DTDElementDeclaration decl = new DTDElementDeclaration (DTD);
- SkipWhitespace ();
- TryExpandPERef ();
- decl.Name = ReadName ();
- SkipWhitespace ();
- TryExpandPERef ();
- ReadContentSpec (decl);
- SkipWhitespace ();
- // This expanding is only allowed as a non-validating parser.
- TryExpandPERef ();
- Expect ('>');
- return decl;
- }
-
- // read 'children'(BNF) of contentspec
- private void ReadContentSpec (DTDElementDeclaration decl)
- {
- switch(PeekChar ())
- {
- case 'E':
- decl.IsEmpty = true;
- Expect ("EMPTY");
- break;
- case 'A':
- decl.IsAny = true;
- Expect ("ANY");
- break;
- case '(':
- DTDContentModel model = decl.ContentModel;
- ReadChar ();
- SkipWhitespace ();
- TryExpandPERef ();
- if(PeekChar () == '#') {
- // Mixed Contents. "#PCDATA" must appear first.
- decl.IsMixedContent = true;
- Expect ("#PCDATA");
- SkipWhitespace ();
- TryExpandPERef ();
- SkipWhitespace ();
- while(PeekChar () != ')') {
- Expect('|');
- SkipWhitespace ();
- TryExpandPERef ();
- SkipWhitespace ();
- DTDContentModel elem = new DTDContentModel (DTD, decl.Name);
- model.ElementName = ReadName ();
- model.ChildModels.Add (elem);
- SkipWhitespace ();
- TryExpandPERef ();
- }
- Expect (')');
- if (model.ChildModels.Count > 0) {
- Expect ('*');
- model.Occurence = DTDOccurence.ZeroOrMore;
- }
- else if (PeekChar () == '*')
- Expect ('*');
- } else {
- // Non-Mixed Contents
- model.ChildModels.Add (ReadCP (decl));
- SkipWhitespace ();
-
- do { // copied from ReadCP() ...;-)
- TryExpandPERef ();
- SkipWhitespace ();
- if(PeekChar ()=='|') {
- // CPType=Or
- model.OrderType = DTDContentOrderType.Or;
- ReadChar ();
- SkipWhitespace ();
- model.ChildModels.Add (ReadCP (decl));
- SkipWhitespace ();
- }
- else if(PeekChar () == ',')
- {
- // CPType=Seq
- model.OrderType = DTDContentOrderType.Seq;
- ReadChar ();
- SkipWhitespace ();
- model.ChildModels.Add (ReadCP (decl));
- SkipWhitespace ();
- }
- else
- break;
- }
- while(true);
-
- Expect (')');
- switch(PeekChar ())
- {
- case '?':
- model.Occurence = DTDOccurence.Optional;
- ReadChar ();
- break;
- case '*':
- model.Occurence = DTDOccurence.ZeroOrMore;
- ReadChar ();
- break;
- case '+':
- model.Occurence = DTDOccurence.OneOrMore;
- ReadChar ();
- break;
- }
- SkipWhitespace ();
- }
- SkipWhitespace ();
- break;
- }
- }
-
- // Read 'cp' (BNF) of contentdecl (BNF)
- private DTDContentModel ReadCP (DTDElementDeclaration elem)
- {
- DTDContentModel model = null;
- TryExpandPERef ();
- if(PeekChar () == '(') {
- model = new DTDContentModel (DTD, elem.Name);
- ReadChar ();
- SkipWhitespace ();
- model.ChildModels.Add (ReadCP (elem));
- SkipWhitespace ();
- do {
- TryExpandPERef ();
- SkipWhitespace ();
- if(PeekChar ()=='|') {
- // CPType=Or
- model.OrderType = DTDContentOrderType.Or;
- ReadChar ();
- SkipWhitespace ();
- model.ChildModels.Add (ReadCP (elem));
- SkipWhitespace ();
- }
- else if(PeekChar () == ',') {
- // CPType=Seq
- model.OrderType = DTDContentOrderType.Seq;
- ReadChar ();
- SkipWhitespace ();
- model.ChildModels.Add (ReadCP (elem));
- SkipWhitespace ();
- }
- else
- break;
- }
- while(true);
- SkipWhitespace ();
- Expect (')');
- }
- else {
- TryExpandPERef ();
- model = new DTDContentModel (DTD, elem.Name);
- model.ElementName = ReadName ();
- }
-
- switch(PeekChar ()) {
- case '?':
- model.Occurence = DTDOccurence.Optional;
- ReadChar ();
- break;
- case '*':
- model.Occurence = DTDOccurence.ZeroOrMore;
- ReadChar ();
- break;
- case '+':
- model.Occurence = DTDOccurence.OneOrMore;
- ReadChar ();
- break;
- }
- return model;
- }
-
- // The reader is positioned on the first name char.
- private void ReadParameterEntityDecl ()
- {
- DTDParameterEntityDeclaration decl =
- new DTDParameterEntityDeclaration();
- decl.BaseURI = BaseURI;
-
- decl.Name = ReadName ();
- SkipWhitespace ();
-
- if (PeekChar () == 'S' || PeekChar () == 'P') {
-// throw new NotImplementedException ("External parameter entity reference is not implemented yet.");
- // read publicId/systemId
- ReadExternalID ();
- decl.PublicId = attributes ["PUBLIC"] as string;
- decl.SystemId = attributes ["SYSTEM"] as string;
- SkipWhitespace ();
- }
- else {
- TryExpandPERef ();
- int quoteChar = ReadChar ();
- int start = currentTag.Length;
- while (true) {
- SkipWhitespace ();
- int c = PeekChar ();
- if ((int) c == -1)
- throw new XmlException ("unexpected end of stream in entity value definition.");
- switch (c) {
- case '"':
- ReadChar ();
- if (quoteChar == '"') goto SKIP;
- break;
- case '\'':
- ReadChar ();
- if (quoteChar == '\'') goto SKIP;
- break;
- case '%':
- ImportAsPERef ();
- break;
- default:
- ReadChar ();
- break;
- }
- }
- SKIP:
- decl.Value = currentTag.ToString (start, currentTag.Length - start - 1);
- }
- SkipWhitespace ();
- Expect ('>');
- if (parameterEntities [decl.Name] == null) {
- parameterEntities.Add (decl.Name, decl);
- }
- }
-
- // reader is positioned on '%'
- private void ImportAsPERef ()
- {
- StringBuilder sb = null;
- int peRefStart = currentTag.Length;
- string appendStr = "";
- ReadChar ();
- string peName = ReadName ();
- Expect (';');
- DTDParameterEntityDeclaration peDecl =
- this.parameterEntities [peName] as DTDParameterEntityDeclaration;
- if (peDecl == null)
- throw new XmlException (this as IXmlLineInfo,"Parameter entity " + peName + " not found.");
- if (peDecl.SystemId != null) {
- PushParserInput (peDecl.SystemId);
- if (sb == null)
- sb = new StringBuilder ();
- else
- sb.Length = 0;
- while (PeekChar () != -1)
- sb.Append (ReadChar ());
- PopParserInput ();
- appendStr = sb.ToString ();
- } else {
- appendStr = peDecl.Value;
- }
- currentTag.Remove (peRefStart,
- currentTag.Length - peRefStart);
- currentTag.Append (Dereference (appendStr));
- }
-
- // The reader is positioned on the head of the name.
- private DTDEntityDeclaration ReadEntityDecl ()
- {
- DTDEntityDeclaration decl = new DTDEntityDeclaration ();
- decl.IsInternalSubset = isIntSubset;
- decl.Name = ReadName ();
- SkipWhitespace ();
- TryExpandPERef ();
- SkipWhitespace ();
-
- if (PeekChar () == 'S' || PeekChar () == 'P') {
- // external entity
- ReadExternalID ();
- decl.PublicId = attributes ["PUBLIC"] as string;
- decl.SystemId = attributes ["SYSTEM"] as string;
- if (SkipWhitespace ()) {
- if (PeekChar () == 'N') {
- // NDataDecl
- Expect ("NDATA");
- if (SkipWhitespace ())
- decl.NotationName = ReadName (); // ndata_name
- }
- }
- }
- else {
- // general entity
- decl.EntityValue = ReadEntityValueDecl ();
- }
- SkipWhitespace ();
- // This expanding is only allowed as a non-validating parser.
- TryExpandPERef ();
- Expect ('>');
- return decl;
- }
-
- private string ReadEntityValueDecl ()
- {
- SkipWhitespace ();
- // quotation char will be finally removed on unescaping
- int quoteChar = ReadChar ();
- int start = currentTag.Length;
- if (quoteChar != '\'' && quoteChar != '"')
- throw new XmlException ("quotation char was expected.");
-
- while (PeekChar () != quoteChar) {
- switch (PeekChar ()) {
- case '%':
- this.ImportAsPERef ();
- continue;
- case '&':
- ReadChar ();
- ReadReference (true);
- break;
- case -1:
- throw new XmlException ("unexpected end of stream.");
- default:
- ReadChar ();
- break;
- }
- }
- string value = Dereference (currentTag.ToString (start, currentTag.Length - start));
- Expect (quoteChar);
- return value;
- }
-
- private DTDAttListDeclaration ReadAttListDecl ()
- {
- SkipWhitespace ();
- TryExpandPERef ();
- string name = ReadName (); // target element name
- DTDAttListDeclaration decl =
- DTD.AttListDecls [name] as DTDAttListDeclaration;
- if (decl == null)
- decl = new DTDAttListDeclaration ();
- decl.Name = name;
-
- SkipWhitespace ();
- TryExpandPERef ();
- SkipWhitespace ();
-
- while (XmlConstructs.IsName ((char) PeekChar ())) {
- DTDAttributeDefinition def = ReadAttributeDefinition ();
- if (decl [def.Name] == null)
- decl.Add (def);
- SkipWhitespace ();
- TryExpandPERef ();
- SkipWhitespace ();
- }
- SkipWhitespace ();
- // This expanding is only allowed as a non-validating parser.
- TryExpandPERef ();
- Expect ('>');
- return decl;
- }
-
- private DTDAttributeDefinition ReadAttributeDefinition ()
- {
- DTDAttributeDefinition def = new DTDAttributeDefinition ();
-
- // attr_name
- TryExpandPERef ();
- def.Name = ReadName ();
- SkipWhitespace ();
-
- // attr_value
- TryExpandPERef ();
- switch(PeekChar ()) {
- case 'C': // CDATA
- Expect ("CDATA");
- def.Datatype = XmlSchemaDatatype.FromName ("normalizedString");
- break;
- case 'I': // ID, IDREF, IDREFS
- Expect ("ID");
- if(PeekChar () == 'R') {
- Expect ("REF");
- if(PeekChar () == 'S') {
- // IDREFS
- ReadChar ();
- def.Datatype = XmlSchemaDatatype.FromName ("IDREFS");
- }
- else // IDREF
- def.Datatype = XmlSchemaDatatype.FromName ("IDREF");
- }
- else // ID
- def.Datatype = XmlSchemaDatatype.FromName ("ID");
- break;
- case 'E': // ENTITY, ENTITIES
- Expect ("ENTIT");
- switch(ReadChar ()) {
- case 'Y': // ENTITY
- def.Datatype = XmlSchemaDatatype.FromName ("ENTITY");
- break;
- case 'I': // ENTITIES
- Expect ("ES");
- def.Datatype = XmlSchemaDatatype.FromName ("ENTITIES");
- break;
- }
- break;
- case 'N': // NMTOKEN, NMTOKENS, NOTATION
- ReadChar ();
- switch(PeekChar ()) {
- case 'M':
- Expect ("MTOKEN");
- if(PeekChar ()=='S') { // NMTOKENS
- ReadChar ();
- def.Datatype = XmlSchemaDatatype.FromName ("NMTOKENS");
- }
- else // NMTOKEN
- def.Datatype = XmlSchemaDatatype.FromName ("NMTOKEN");
- break;
- case 'O':
- Expect ("OTATION");
- def.Datatype = XmlSchemaDatatype.FromName ("NOTATION");
- SkipWhitespace ();
- Expect ('(');
- SkipWhitespace ();
- def.EnumeratedNotations.Add (ReadName ()); // notation name
- SkipWhitespace ();
- while(PeekChar () == '|') {
- ReadChar ();
- SkipWhitespace ();
- def.EnumeratedNotations.Add (ReadName ()); // notation name
- SkipWhitespace ();
- }
- Expect (')');
- break;
- default:
- throw new XmlException ("attribute declaration syntax error.");
- }
- break;
- default: // Enumerated Values
- TryExpandPERef ();
- Expect ('(');
- SkipWhitespace ();
- def.EnumeratedAttributeDeclaration.Add (ReadNmToken ()); // enum value
- SkipWhitespace ();
- while(PeekChar () == '|') {
- ReadChar ();
- SkipWhitespace ();
- def.EnumeratedAttributeDeclaration.Add (ReadNmToken ()); // enum value
- SkipWhitespace ();
- }
- Expect (')');
- break;
- }
- SkipWhitespace ();
-
- TryExpandPERef ();
-
- // def_value
- if(PeekChar () == '#')
- {
- ReadChar ();
- switch(PeekChar ())
- {
- case 'R':
- Expect ("REQUIRED");
- def.OccurenceType = DTDAttributeOccurenceType.Required;
- break;
- case 'I':
- Expect ("IMPLIED");
- def.OccurenceType = DTDAttributeOccurenceType.Optional;
- break;
- case 'F':
- Expect ("FIXED");
- def.OccurenceType = DTDAttributeOccurenceType.Fixed;
- SkipWhitespace ();
- def.UnresolvedDefaultValue = ReadAttribute ();
- break;
- }
- } else {
- // one of the enumerated value
- if (PeekChar () == -1) {
- PopParserInput ();
- }
- SkipWhitespace ();
- def.UnresolvedDefaultValue = ReadAttribute ();
- }
-
- return def;
- }
-
- private DTDNotationDeclaration ReadNotationDecl()
- {
- DTDNotationDeclaration decl = new DTDNotationDeclaration ();
- SkipWhitespace ();
- decl.Name = ReadName (); // notation name
- if (namespaces) { // copy from SetProperties ;-)
- int indexOfColon = decl.Name.IndexOf (':');
-
- if (indexOfColon == -1) {
- decl.Prefix = String.Empty;
- decl.LocalName = decl.Name;
- } else {
- decl.Prefix = decl.Name.Substring (0, indexOfColon);
- decl.LocalName = decl.Name.Substring (indexOfColon + 1);
- }
- } else {
- decl.Prefix = String.Empty;
- decl.LocalName = decl.Name;
- }
-
- SkipWhitespace ();
- if(PeekChar () == 'P') {
- decl.PublicId = ReadPubidLiteral ();
- SkipWhitespace ();
- if (PeekChar () == '\'' || PeekChar () == '"') {
- decl.SystemId = ReadSystemLiteral (false);
- SkipWhitespace ();
- }
- } else if(PeekChar () == 'S') {
- decl.SystemId = ReadSystemLiteral (true);
- SkipWhitespace ();
- }
- if(decl.PublicId == null && decl.SystemId == null)
- throw new XmlException ("public or system declaration required for \"NOTATION\" declaration.");
- // This expanding is only allowed as a non-validating parser.
- TryExpandPERef ();
- Expect ('>');
- return decl;
- }
-
- private void TryExpandPERef ()
- {
- if (PeekChar () == '%') {
- ReadChar ();
- if (!XmlConstructs.IsName (PeekChar ()))
- return;
- ExpandPERef ();
- }
- }
-
- // reader is positioned on the first letter of the name.
- private void ExpandPERef ()
- {
- ExpandPERef (true);
- }
-
- private void ExpandPERef (bool attachSpace)
- {
- string peName = ReadName ();
- Expect (";");
- ExpandNamedPERef (peName, attachSpace);
- }
-
- private void ExpandNamedPERef (string peName, bool attachSpace)
- {
- DTDParameterEntityDeclaration decl =
- parameterEntities [peName] as DTDParameterEntityDeclaration;
- if (decl == null)
- throw new XmlException ("undeclared parameter entity: '" + peName + "'");
- if (decl.SystemId != null) {
- PushParserInput (decl.SystemId);
- }
- // add buffer
- else
- currentInput.InsertParameterEntityBuffer (attachSpace ? " " + Dereference (decl.Value) + " " : decl.Value);
- SkipWhitespace (); // is it ok?
-// while (PeekChar () == '%')
-// TryExpandPERef (); // recursive
- }
-
- private void ReadExternalID() {
- switch(PeekChar ()) {
- case 'S':
- attributes ["PUBLIC"] = null;
- attributes ["SYSTEM"] = ReadSystemLiteral (true);
- break;
- case 'P':
- attributes ["PUBLIC"] = ReadPubidLiteral ();
- SkipWhitespace ();
- attributes ["SYSTEM"] = ReadSystemLiteral (false);
- break;
- }
- }
-
- // 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
- int startPos = currentTag.Length;
- int c = 0;
- while(c != quoteChar) {
- c = ReadChar ();
- if(c < 0) throw new XmlException (this as IXmlLineInfo,"Unexpected end of stream in ExternalID.");
- }
- return currentTag.ToString (startPos, currentTag.Length - 1 - startPos);
- }
-
- private string ReadPubidLiteral()
- {
- Expect ("PUBLIC");
- SkipWhitespace ();
- int quoteChar = ReadChar ();
- int startPos = currentTag.Length;
- int c = 0;
- while(c != quoteChar)
- {
- c = ReadChar ();
- if(c < 0) throw new XmlException (this as IXmlLineInfo,"Unexpected end of stream in ExternalID.");
- if(c != quoteChar && !XmlConstructs.IsPubid (c))
- throw new XmlException (this as IXmlLineInfo,"character '" + (char)c + "' not allowed for PUBLIC ID");
- }
- return currentTag.ToString (startPos, currentTag.Length - 1 - startPos);
+ return CreateValueString ();
}
// The reader is positioned on the first character
// of the name.
- internal string ReadName ()
- {
- return ReadNameOrNmToken(false);
- }
-
- // The reader is positioned on the first character
- // of the name.
- private string ReadNmToken ()
- {
- return ReadNameOrNmToken(true);
- }
-
- private string ReadNameOrNmToken(bool isNameToken)
+ private string ReadName ()
{
int ch = PeekChar ();
- if(isNameToken) {
- if (!XmlConstructs.IsName ((char) ch))
- throw new XmlException (this as IXmlLineInfo,String.Format ("a nmtoken did not start with a legal character {0} ({1})", ch, (char)ch));
- }
- else {
- if (!XmlConstructs.IsNameStart ((char) ch))
- throw new XmlException (this as IXmlLineInfo,String.Format ("a name did not start with a legal character {0} ({1})", ch, (char)ch));
- }
+ if (!XmlChar.IsFirstNameChar (ch))
+ throw new XmlException (this as IXmlLineInfo,String.Format (CultureInfo.InvariantCulture, "a name did not start with a legal character {0} ({1})", ch, (char) ch));
nameLength = 0;
AppendNameChar (ReadChar ());
- while (XmlConstructs.IsName (PeekChar ())) {
+ while (XmlChar.IsNameChar (PeekChar ())) {
AppendNameChar (ReadChar ());
}
if (ch != expected) {
throw new XmlException (this as IXmlLineInfo,
- String.Format (
+ String.Format (CultureInfo.InvariantCulture,
"expected '{0}' ({1:X}) but found '{2}' ({3:X})",
- (char)expected,
+ (char) expected,
expected,
- (char)ch,
+ (char) ch,
ch));
}
}
Expect (expected[i]);
}
+ private void ExpectAfterWhitespace (char c)
+ {
+ while (true) {
+ int i = ReadChar ();
+ if (i < 0x21 && XmlChar.IsWhitespace (i))
+ continue;
+ if (c != i)
+ throw new XmlException (this, String.Format (CultureInfo.InvariantCulture, "Expected {0}, but found {1} [{2}]", c, (char) i, i));
+ break;
+ }
+ }
+
// Does not consume the first non-whitespace character.
private bool SkipWhitespace ()
{
- //FIXME: Should not skip if whitespaceHandling == WhiteSpaceHandling.None
- bool skipped = XmlConstructs.IsSpace (PeekChar ());
- while (XmlConstructs.IsSpace (PeekChar ()))
+ bool skipped = XmlChar.IsWhitespace (PeekChar ());
+ if (!skipped)
+ return false;
+ while (XmlChar.IsWhitespace (PeekChar ()))
ReadChar ();
return skipped;
}
- private bool ReadWhitespace ()
+ private void ReadWhitespace ()
{
if (currentState == XmlNodeType.None)
currentState = XmlNodeType.XmlDeclaration;
int ch = PeekChar ();
do {
AppendValueChar (ReadChar ());
- } while ((ch = PeekChar ()) != -1 && XmlConstructs.IsSpace (ch));
+ } while ((ch = PeekChar ()) != -1 && XmlChar.IsWhitespace (ch));
if (currentState == XmlNodeType.Element && ch != -1 && ch != '<')
ReadText (false);
- else
- SetProperties (XmlNodeType.Whitespace,
+ else {
+ XmlNodeType nodeType = (this.XmlSpace == XmlSpace.Preserve) ?
+ XmlNodeType.SignificantWhitespace : XmlNodeType.Whitespace;
+ SetProperties (nodeType,
String.Empty,
false,
- valueBuffer,
+ null, // value: create only when required
true);
+ }
- return (PeekChar () != -1);
+ return;
}
- // read entity reference from attribute string and if parsable then return the value.
- private string ReadAttributeValueReference ()
+ // Since ReadBase64() is processed for every 4 chars, it does
+ // not handle '=' here.
+ private byte GetBase64Byte (char ch)
{
- int endEntityPosition = attributeString.IndexOf(';',
- attributeValuePos);
- if (endEntityPosition < 0)
- throw new XmlException ("Insufficient markup of entity reference");
- string entityName = attributeString.Substring (attributeValuePos + 1,
- endEntityPosition - attributeValuePos - 1);
-
- attributeValuePos = 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;
- }
+ switch (ch) {
+ case '+':
+ return 62;
+ case '/':
+ return 63;
+ default:
+ if (ch >= 'A' && ch <= 'Z')
+ return (byte) (ch - 'A');
+ else if (ch >= 'a' && ch <= 'z')
+ return (byte) (ch - 'a' + 26);
+ else if (ch >= '0' && ch <= '9')
+ return (byte) (ch - '0' + 52);
+ else
+ throw new XmlException ("Invalid Base64 character was found.");
}
}
- private string UnescapeAttributeValue (string unresolved)
+ // Returns -1 if it should throw an error.
+ private int ReadCharsInternal (char [] buffer, int offset, int length)
{
- if(unresolved == null) return null;
+ if (IsEmptyElement) {
+ Read ();
+ return 0;
+ }
- // trim start/end edge of quotation character.
- return Dereference (unresolved.Substring (1, unresolved.Length - 2));
- }
+ if (offset < 0)
+ throw new ArgumentOutOfRangeException ("offset", offset, "Offset must be non-negative integer.");
+ else if (length < 0)
+ throw new ArgumentOutOfRangeException ("length", length, "Length must be non-negative integer.");
+ else if (buffer.Length < offset + length)
+ throw new ArgumentOutOfRangeException ("buffer length is smaller than the sum of offset and length.");
- private string Dereference (string unresolved)
- {
- StringBuilder resolved = new StringBuilder();
- int pos = 0;
- int next = unresolved.IndexOf ('&');
- if(next < 0)
- return unresolved;
+ if (NodeType != XmlNodeType.Element)
+ return 0;
- 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));
+ shouldSkipUntilEndTag = true;
+
+ int bufIndex = offset;
+ for (int i = 0; i < length; i++) {
+ int c = PeekChar ();
+ switch (c) {
+ case -1:
+ throw new XmlException (this as IXmlLineInfo, "Unexpected end of xml.");
+ case '<':
+ ReadChar ();
+ if (PeekChar () != '/') {
+ buffer [bufIndex++] = '<';
+ continue;
}
- 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;
+ // Seems to skip immediate EndElement
+ Expect ('/');
+ if (depthUp) {
+ depth++;
+ depthUp = false;
+ }
+ ReadEndTag ();
+ shouldSkipUntilEndTag = false;
+ Read (); // move to the next node
+ return i;
+ default:
+ ReadChar ();
+ if (c < Char.MaxValue)
+ buffer [bufIndex++] = (char) c;
+ else {
+ buffer [bufIndex++] = (char) (c / 0x10000 + 0xD800 - 1);
+ buffer [bufIndex++] = (char) (c % 0x10000 + 0xDC00);
}
- }
- pos = endPos + 1;
- if(pos > unresolved.Length)
break;
- next = unresolved.IndexOf('&', pos);
+ }
}
- resolved.Append (unresolved.Substring(pos));
-
- return resolved.ToString();
+ return length;
}
+ private bool ReadUntilEndTag ()
+ {
+ int ch;
+ do {
+ ch = ReadChar ();
+ switch (ch) {
+ case -1:
+ throw new XmlException (this as IXmlLineInfo,
+ "Unexpected end of xml.");
+ case '<':
+ if (PeekChar () != '/')
+ continue;
+ ReadChar ();
+ string name = ReadName ();
+ if (name != elementNames [elementNameStackPos - 1])
+ continue;
+ Expect ('>');
+ depth--;
+ elementNames [--elementNameStackPos] = null;
+ return Read ();
+ }
+ } while (true);
+ }
#endregion
}
}
projects / mono.git / blobdiff