private void Parse()
{
int num = 0;
if (this.OptionComputeChecksum)
this._crc32 = new Crc32();
this.Lastnodes = new Dictionary<string, HtmlNode>();
this._c = 0;
this._fullcomment = false;
this._parseerrors = new List<HtmlParseError>();
this._line = 1;
this._lineposition = 1;
this._maxlineposition = 1;
this._state = HtmlDocument.ParseState.Text;
this._oldstate = this._state;
this._documentnode._innerlength = this.Text.Length;
this._documentnode._outerlength = this.Text.Length;
this._remainderOffset = this.Text.Length;
this._lastparentnode = this._documentnode;
this._currentnode = this.CreateNode(HtmlNodeType.Text, 0);
this._currentattribute = (HtmlAttribute) null;
this._index = 0;
this.PushNodeStart(HtmlNodeType.Text, 0);
while (this._index < this.Text.Length)
{
this._c = (int) this.Text[this._index];
this.IncrementPosition();
switch (this._state)
{
case HtmlDocument.ParseState.Text:
if (!this.NewCheck())
continue;
continue;
case HtmlDocument.ParseState.WhichTag:
if (!this.NewCheck())
{
if (this._c == 47)
{
this.PushNodeNameStart(false, this._index);
}
else
{
this.PushNodeNameStart(true, this._index - 1);
this.DecrementPosition();
}
this._state = HtmlDocument.ParseState.Tag;
continue;
}
continue;
case HtmlDocument.ParseState.Tag:
if (!this.NewCheck())
{
if (HtmlDocument.IsWhiteSpace(this._c))
{
this.PushNodeNameEnd(this._index - 1);
if (this._state == HtmlDocument.ParseState.Tag)
{
this._state = HtmlDocument.ParseState.BetweenAttributes;
continue;
}
continue;
}
if (this._c == 47)
{
this.PushNodeNameEnd(this._index - 1);
if (this._state == HtmlDocument.ParseState.Tag)
{
this._state = HtmlDocument.ParseState.EmptyTag;
continue;
}
continue;
}
if (this._c == 62)
{
this.PushNodeNameEnd(this._index - 1);
if (this._state == HtmlDocument.ParseState.Tag)
{
if (!this.PushNodeEnd(this._index, false))
{
this._index = this.Text.Length;
continue;
}
if (this._state == HtmlDocument.ParseState.Tag)
{
this._state = HtmlDocument.ParseState.Text;
this.PushNodeStart(HtmlNodeType.Text, this._index);
continue;
}
continue;
}
continue;
}
continue;
}
continue;
case HtmlDocument.ParseState.BetweenAttributes:
if (!this.NewCheck() && !HtmlDocument.IsWhiteSpace(this._c))
{
if (this._c == 47 || this._c == 63)
{
this._state = HtmlDocument.ParseState.EmptyTag;
continue;
}
if (this._c == 62)
{
if (!this.PushNodeEnd(this._index, false))
{
this._index = this.Text.Length;
continue;
}
if (this._state == HtmlDocument.ParseState.BetweenAttributes)
{
this._state = HtmlDocument.ParseState.Text;
this.PushNodeStart(HtmlNodeType.Text, this._index);
continue;
}
continue;
}
this.PushAttributeNameStart(this._index - 1);
this._state = HtmlDocument.ParseState.AttributeName;
continue;
}
continue;
case HtmlDocument.ParseState.EmptyTag:
if (!this.NewCheck())
{
if (this._c == 62)
{
if (!this.PushNodeEnd(this._index, true))
{
this._index = this.Text.Length;
continue;
}
if (this._state == HtmlDocument.ParseState.EmptyTag)
{
this._state = HtmlDocument.ParseState.Text;
this.PushNodeStart(HtmlNodeType.Text, this._index);
continue;
}
continue;
}
this._state = HtmlDocument.ParseState.BetweenAttributes;
continue;
}
continue;
case HtmlDocument.ParseState.AttributeName:
if (!this.NewCheck())
{
if (HtmlDocument.IsWhiteSpace(this._c))
{
this.PushAttributeNameEnd(this._index - 1);
this._state = HtmlDocument.ParseState.AttributeBeforeEquals;
continue;
}
if (this._c == 61)
{
this.PushAttributeNameEnd(this._index - 1);
this._state = HtmlDocument.ParseState.AttributeAfterEquals;
continue;
}
if (this._c == 62)
{
this.PushAttributeNameEnd(this._index - 1);
if (!this.PushNodeEnd(this._index, false))
{
this._index = this.Text.Length;
continue;
}
if (this._state == HtmlDocument.ParseState.AttributeName)
{
this._state = HtmlDocument.ParseState.Text;
this.PushNodeStart(HtmlNodeType.Text, this._index);
continue;
}
continue;
}
continue;
}
continue;
case HtmlDocument.ParseState.AttributeBeforeEquals:
if (!this.NewCheck() && !HtmlDocument.IsWhiteSpace(this._c))
{
if (this._c == 62)
{
if (!this.PushNodeEnd(this._index, false))
{
this._index = this.Text.Length;
continue;
}
if (this._state == HtmlDocument.ParseState.AttributeBeforeEquals)
{
this._state = HtmlDocument.ParseState.Text;
this.PushNodeStart(HtmlNodeType.Text, this._index);
continue;
}
continue;
}
if (this._c == 61)
{
this._state = HtmlDocument.ParseState.AttributeAfterEquals;
continue;
}
this._state = HtmlDocument.ParseState.BetweenAttributes;
this.DecrementPosition();
continue;
}
continue;
case HtmlDocument.ParseState.AttributeAfterEquals:
if (!this.NewCheck() && !HtmlDocument.IsWhiteSpace(this._c))
{
if (this._c == 39 || this._c == 34)
{
this._state = HtmlDocument.ParseState.QuotedAttributeValue;
this.PushAttributeValueStart(this._index, this._c);
num = this._c;
continue;
}
if (this._c == 62)
{
if (!this.PushNodeEnd(this._index, false))
{
this._index = this.Text.Length;
continue;
}
if (this._state == HtmlDocument.ParseState.AttributeAfterEquals)
{
this._state = HtmlDocument.ParseState.Text;
this.PushNodeStart(HtmlNodeType.Text, this._index);
continue;
}
continue;
}
this.PushAttributeValueStart(this._index - 1);
this._state = HtmlDocument.ParseState.AttributeValue;
continue;
}
continue;
case HtmlDocument.ParseState.AttributeValue:
if (!this.NewCheck())
{
if (HtmlDocument.IsWhiteSpace(this._c))
{
this.PushAttributeValueEnd(this._index - 1);
this._state = HtmlDocument.ParseState.BetweenAttributes;
continue;
}
if (this._c == 62)
{
this.PushAttributeValueEnd(this._index - 1);
if (!this.PushNodeEnd(this._index, false))
{
this._index = this.Text.Length;
continue;
}
if (this._state == HtmlDocument.ParseState.AttributeValue)
{
this._state = HtmlDocument.ParseState.Text;
this.PushNodeStart(HtmlNodeType.Text, this._index);
continue;
}
continue;
}
continue;
}
continue;
case HtmlDocument.ParseState.Comment:
if (this._c == 62 && (!this._fullcomment || (int) this.Text[this._index - 2] == 45 && (int) this.Text[this._index - 3] == 45))
{
if (!this.PushNodeEnd(this._index, false))
{
this._index = this.Text.Length;
continue;
}
this._state = HtmlDocument.ParseState.Text;
this.PushNodeStart(HtmlNodeType.Text, this._index);
continue;
}
continue;
case HtmlDocument.ParseState.QuotedAttributeValue:
if (this._c == num)
{
this.PushAttributeValueEnd(this._index - 1);
this._state = HtmlDocument.ParseState.BetweenAttributes;
continue;
}
if (this._c == 60 && this._index < this.Text.Length && (int) this.Text[this._index] == 37)
{
this._oldstate = this._state;
this._state = HtmlDocument.ParseState.ServerSideCode;
continue;
}
continue;
case HtmlDocument.ParseState.ServerSideCode:
if (this._c == 37 && this._index < this.Text.Length && (int) this.Text[this._index] == 62)
{
switch (this._oldstate)
{
case HtmlDocument.ParseState.BetweenAttributes:
this.PushAttributeNameEnd(this._index + 1);
this._state = HtmlDocument.ParseState.BetweenAttributes;
break;
case HtmlDocument.ParseState.AttributeAfterEquals:
this._state = HtmlDocument.ParseState.AttributeValue;
break;
default:
this._state = this._oldstate;
break;
}
this.IncrementPosition();
continue;
}
continue;
case HtmlDocument.ParseState.PcData:
if (this._currentnode._namelength + 3 <= this.Text.Length - (this._index - 1) && string.Compare(this.Text.Substring(this._index - 1, this._currentnode._namelength + 2), "</" + this._currentnode.Name, StringComparison.OrdinalIgnoreCase) == 0)
{
int c = (int) this.Text[this._index - 1 + 2 + this._currentnode.Name.Length];
if (c == 62 || HtmlDocument.IsWhiteSpace(c))
{
HtmlNode node = this.CreateNode(HtmlNodeType.Text, this._currentnode._outerstartindex + this._currentnode._outerlength);
node._outerlength = this._index - 1 - node._outerstartindex;
this._currentnode.AppendChild(node);
this.PushNodeStart(HtmlNodeType.Element, this._index - 1);
this.PushNodeNameStart(false, this._index - 1 + 2);
this._state = HtmlDocument.ParseState.Tag;
this.IncrementPosition();
continue;
}
continue;
}
continue;
default:
continue;
}
}
if (this._currentnode._namestartindex > 0)
this.PushNodeNameEnd(this._index);
this.PushNodeEnd(this._index, false);
this.Lastnodes.Clear();
}
private bool PushNodeEnd(int index, bool close)
{
this._currentnode._outerlength = index - this._currentnode._outerstartindex;
if (this._currentnode._nodetype == HtmlNodeType.Text || this._currentnode._nodetype == HtmlNodeType.Comment)
{
if (this._currentnode._outerlength > 0)
{
this._currentnode._innerlength = this._currentnode._outerlength;
this._currentnode._innerstartindex = this._currentnode._outerstartindex;
if (this._lastparentnode != null)
this._lastparentnode.AppendChild(this._currentnode);
}
}
else if (this._currentnode._starttag && this._lastparentnode != this._currentnode)
{
if (this._lastparentnode != null)
this._lastparentnode.AppendChild(this._currentnode);
this.ReadDocumentEncoding(this._currentnode);
this._currentnode._prevwithsamename = Utilities.GetDictionaryValueOrNull<string, HtmlNode>(this.Lastnodes, this._currentnode.Name);
this.Lastnodes[this._currentnode.Name] = this._currentnode;
if (this._currentnode.NodeType == HtmlNodeType.Document || this._currentnode.NodeType == HtmlNodeType.Element)
this._lastparentnode = this._currentnode;
if (HtmlNode.IsCDataElement(this.CurrentNodeName()))
{
this._state = HtmlDocument.ParseState.PcData;
return true;
}
if (HtmlNode.IsClosedElement(this._currentnode.Name) || HtmlNode.IsEmptyElement(this._currentnode.Name))
close = true;
}
if (close || !this._currentnode._starttag)
{
if (this.OptionStopperNodeName != null && this._remainder == null && string.Compare(this._currentnode.Name, this.OptionStopperNodeName, StringComparison.OrdinalIgnoreCase) == 0)
{
this._remainderOffset = index;
this._remainder = this.Text.Substring(this._remainderOffset);
this.CloseCurrentNode();
return false;
}
this.CloseCurrentNode();
}
return true;
}
private bool NewCheck()
{
if (this._c != 60)
return false;
if (this._index < this.Text.Length && (int) this.Text[this._index] == 37)
{
switch (this._state)
{
case HtmlDocument.ParseState.WhichTag:
this.PushNodeNameStart(true, this._index - 1);
this._state = HtmlDocument.ParseState.Tag;
break;
case HtmlDocument.ParseState.BetweenAttributes:
this.PushAttributeNameStart(this._index - 1);
break;
case HtmlDocument.ParseState.AttributeAfterEquals:
this.PushAttributeValueStart(this._index - 1);
break;
}
this._oldstate = this._state;
this._state = HtmlDocument.ParseState.ServerSideCode;
return true;
}
if (!this.PushNodeEnd(this._index - 1, true))
{
this._index = this.Text.Length;
return true;
}
this._state = HtmlDocument.ParseState.WhichTag;
if (this._index - 1 <= this.Text.Length - 2 && (int) this.Text[this._index] == 33)
{
this.PushNodeStart(HtmlNodeType.Comment, this._index - 1);
this.PushNodeNameStart(true, this._index);
this.PushNodeNameEnd(this._index + 1);
this._state = HtmlDocument.ParseState.Comment;
if (this._index < this.Text.Length - 2)
this._fullcomment = (int) this.Text[this._index + 1] == 45 && (int) this.Text[this._index + 2] == 45;
return true;
}
this.PushNodeStart(HtmlNodeType.Element, this._index - 1);
return true;
}