/// <summary>
/// See 8.2.4.9 End tag open state
/// </summary>
/// <param name="c">The next input character.</param>
HtmlToken TagEnd(Char c)
{
if (c.IsLowercaseAscii())
{
_stringBuffer.Append(c);
return TagName(NewTagClose());
}
else if (c.IsUppercaseAscii())
{
_stringBuffer.Append(Char.ToLower(c));
return TagName(NewTagClose());
}
else if (c == Symbols.GreaterThan)
{
_state = HtmlParseMode.PCData;
RaiseErrorOccurred(HtmlParseError.TagClosedWrong);
return Data(GetNext());
}
else if (c == Symbols.EndOfFile)
{
Back();
RaiseErrorOccurred(HtmlParseError.EOF);
_stringBuffer.Append(Symbols.LessThan).Append(Symbols.Solidus);
return NewCharacter();
}
else
{
RaiseErrorOccurred(HtmlParseError.BogusComment);
return BogusComment(c);
}
}
/// <summary>
/// See 8.2.4.16 RAWTEXT end tag name state
/// </summary>
/// <param name="c">The next input character.</param>
HtmlToken RawtextNameEndTag(Char c)
{
while (true)
{
var token = CreateIfAppropriate(c);
if (token != null)
{
return token;
}
else if (c.IsUppercaseAscii())
{
_stringBuffer.Append(Char.ToLower(c));
}
else if (c.IsLowercaseAscii())
{
_stringBuffer.Append(c);
}
else
{
_stringBuffer.Insert(0, Symbols.LessThan).Insert(1, Symbols.Solidus);
return RawtextText(c);
}
c = GetNext();
}
}
/// <summary>
/// See 8.2.4.8 Tag open state
/// </summary>
/// <param name="c">The next input character.</param>
HtmlToken TagOpen(Char c)
{
if (c == Symbols.Solidus)
{
return TagEnd(GetNext());
}
else if (c.IsLowercaseAscii())
{
_stringBuffer.Append(c);
return TagName(NewTagOpen());
}
else if (c.IsUppercaseAscii())
{
_stringBuffer.Append(Char.ToLower(c));
return TagName(NewTagOpen());
}
else if (c == Symbols.ExclamationMark)
{
return MarkupDeclaration(GetNext());
}
else if (c != Symbols.QuestionMark)
{
_state = HtmlParseMode.PCData;
RaiseErrorOccurred(HtmlParseError.AmbiguousOpenTag);
_stringBuffer.Append(Symbols.LessThan);
return DataText(c);
}
else
{
RaiseErrorOccurred(HtmlParseError.BogusComment);
return BogusComment(c);
}
}
/// <summary>
/// See 8.2.4.8 Tag open state
/// </summary>
/// <param name="c">The next input character.</param>
HtmlToken TagOpen(Char c)
{
if (c == Specification.EM)
{
return MarkupDeclaration(_src.Next);
}
else if (c == Specification.SOLIDUS)
{
return TagEnd(_src.Next);
}
else if (c.IsUppercaseAscii())
{
_stringBuffer.Clear();
_stringBuffer.Append(Char.ToLower(c));
return TagName(_src.Next, HtmlToken.OpenTag());
}
else if (c.IsLowercaseAscii())
{
_stringBuffer.Clear();
_stringBuffer.Append(c);
return TagName(_src.Next, HtmlToken.OpenTag());
}
else if (c == Specification.QM)
{
RaiseErrorOccurred(ErrorCode.BogusComment);
return BogusComment(c);
}
_model = HtmlParseMode.PCData;
RaiseErrorOccurred(ErrorCode.AmbiguousOpenTag);
_buffer.Append(Specification.LT);
return Data(c);
}
/// <summary>
/// See 8.2.4.14 RAWTEXT less-than sign state
/// </summary>
/// <param name="c">The next input character.</param>
HtmlToken RawtextLT(Char c)
{
if (c == Symbols.Solidus)
{
// See 8.2.4.15 RAWTEXT end tag open state
c = GetNext();
if (c.IsUppercaseAscii())
{
_stringBuffer.Append(Char.ToLower(c));
return RawtextNameEndTag(GetNext());
}
else if (c.IsLowercaseAscii())
{
_stringBuffer.Append(c);
return RawtextNameEndTag(GetNext());
}
else
{
_stringBuffer.Append(Symbols.LessThan).Append(Symbols.Solidus);
return RawtextText(c);
}
}
else
{
_stringBuffer.Append(Symbols.LessThan);
return RawtextText(c);
}
}
/// <summary>
/// See 8.2.4.13 RCDATA end tag name state
/// </summary>
/// <param name="c">The next input character.</param>
/// <param name="tag">The current tag token.</param>
/// <returns>The emitted token.</returns>
HtmlToken RCDataNameEndTag(Char c, HtmlTagToken tag)
{
var name = _stringBuffer.ToString();
var appropriateTag = name == _lastStartTag;
if (appropriateTag && c.IsSpaceCharacter())
{
tag.Name = name;
return AttributeBeforeName(_src.Next, tag);
}
else if (appropriateTag && c == Specification.SOLIDUS)
{
tag.Name = name;
return TagSelfClosing(_src.Next, tag);
}
else if (appropriateTag && c == Specification.GT)
{
tag.Name = name;
return EmitTag(tag);
}
else if (c.IsUppercaseAscii())
{
_stringBuffer.Append(Char.ToLower(c));
return RCDataNameEndTag(_src.Next, tag);
}
else if (c.IsLowercaseAscii())
{
_stringBuffer.Append(c);
return RCDataNameEndTag(_src.Next, tag);
}
_buffer.Append(Specification.LT).Append(Specification.SOLIDUS);
_buffer.Append(_stringBuffer.ToString());
return RCData(c);
}
/// <summary>
/// See 8.2.4.9 End tag open state
/// </summary>
/// <param name="c">The next input character.</param>
HtmlToken TagEnd(Char c)
{
if (c.IsUppercaseAscii())
{
_stringBuffer.Clear();
_stringBuffer.Append(Char.ToLower(c));
return TagName(_src.Next, HtmlToken.CloseTag());
}
else if (c.IsLowercaseAscii())
{
_stringBuffer.Clear();
_stringBuffer.Append(c);
return TagName(_src.Next, HtmlToken.CloseTag());
}
else if (c == Specification.GT)
{
_model = HtmlParseMode.PCData;
RaiseErrorOccurred(ErrorCode.TagClosedWrong);
return Data(_src.Next);
}
else if (c == Specification.EOF)
{
_src.Back();
RaiseErrorOccurred(ErrorCode.EOF);
_buffer.Append(Specification.LT).Append(Specification.SOLIDUS);
return HtmlToken.EOF;
}
else
{
RaiseErrorOccurred(ErrorCode.BogusComment);
return BogusComment(c);
}
}
/// <summary>
/// See 8.2.4.11 RCDATA less-than sign state
/// </summary>
/// <param name="c">The next input character.</param>
private HtmlToken RCDataLt(Char c)
{
if (c == Symbols.Solidus)
{
// See 8.2.4.12 RCDATA end tag open state
c = GetNext();
if (c.IsUppercaseAscii())
{
StringBuffer.Append(Char.ToLowerInvariant(c));
return RCDataNameEndTag(GetNext());
}
else if (c.IsLowercaseAscii())
{
StringBuffer.Append(c);
return RCDataNameEndTag(GetNext());
}
else
{
StringBuffer.Append(Symbols.LessThan).Append(Symbols.Solidus);
return RCDataText(c);
}
}
else
{
StringBuffer.Append(Symbols.LessThan);
return RCDataText(c);
}
}
/// <summary>
/// See 8.2.4.12 RCDATA end tag open state
/// </summary>
/// <param name="c">The next input character.</param>
/// <returns>The emitted token.</returns>
HtmlToken RCDataEndTag(Char c)
{
if (c.IsUppercaseAscii())
{
_stringBuffer.Clear();
_stringBuffer.Append(Char.ToLower(c));
return RCDataNameEndTag(_src.Next, HtmlToken.CloseTag());
}
else if (c.IsLowercaseAscii())
{
_stringBuffer.Clear();
_stringBuffer.Append(c);
return RCDataNameEndTag(_src.Next, HtmlToken.CloseTag());
}
_buffer.Append(Specification.LT).Append(Specification.SOLIDUS);
return RCData(c);
}
/// <summary>
/// See 8.2.4.25 Script data escaped less-than sign state
/// </summary>
/// <param name="c">The next input character.</param>
HtmlToken ScriptDataEscapedLT(Char c)
{
if (c == Specification.SOLIDUS)
{
return ScriptDataEndTag(_src.Next);
}
else if (c.IsUppercaseAscii())
{
_stringBuffer.Clear();
_stringBuffer.Append(c.ToLower());
_buffer.Append(Specification.LT);
_buffer.Append(c);
return ScriptDataStartDoubleEscape(_src.Next);
}
else if (c.IsLowercaseAscii())
{
_stringBuffer.Clear();
_stringBuffer.Clear();
_stringBuffer.Append(c);
_buffer.Append(Specification.LT);
_buffer.Append(c);
return ScriptDataStartDoubleEscape(_src.Next);
}
_buffer.Append(Specification.LT);
return ScriptDataEscaped(c);
}
/// <summary>
/// See 8.2.4.28 Script data double escape start state
/// </summary>
/// <param name="c">The next input character.</param>
HtmlToken ScriptDataStartDoubleEscape(Char c)
{
if (c.IsSpaceCharacter() || c == Specification.SOLIDUS || c == Specification.GT)
{
_buffer.Append(c);
if (_stringBuffer.ToString() == "script")
return ScriptDataEscapedDouble(_src.Next);
return ScriptDataEscaped(_src.Next);
}
else if (c.IsUppercaseAscii())
{
_stringBuffer.Append(c.ToLower());
_buffer.Append(c);
return ScriptDataStartDoubleEscape(_src.Next);
}
else if (c.IsLowercaseAscii())
{
_stringBuffer.Append(c);
_buffer.Append(c);
return ScriptDataStartDoubleEscape(_src.Next);
}
return ScriptDataEscaped(c);
}
/// <summary>
/// See 8.2.4.26 Script data escaped end tag open state
/// </summary>
/// <param name="c">The next input character.</param>
/// <param name="tag">The current tag token.</param>
/// <returns>The emitted token.</returns>
HtmlToken ScriptDataEscapedEndTag(Char c, HtmlTagToken tag)
{
if (c.IsUppercaseAscii())
{
_stringBuffer.Clear();
_stringBuffer.Append(c.ToLower());
return ScriptDataEscapedEndTag(_src.Next, tag);
}
else if (c.IsLowercaseAscii())
{
_stringBuffer.Clear();
_stringBuffer.Append(c);
return ScriptDataEscapedEndTag(_src.Next, tag);
}
_buffer.Append(Specification.LT).Append(Specification.SOLIDUS);
return ScriptDataEscaped(c);
}
/// <summary>
/// See 8.2.4.8 Tag open state
/// </summary>
/// <param name="c">The next input character.</param>
HtmlToken TagOpen(Char c)
{
if (c == Specification.ExclamationMark)
{
return MarkupDeclaration(Next);
}
else if (c == Specification.Solidus)
{
return TagEnd(Next);
}
else if (c.IsUppercaseAscii())
{
_stringBuffer.Clear();
_stringBuffer.Append(Char.ToLower(c));
return TagName(Next, HtmlToken.OpenTag());
}
else if (c.IsLowercaseAscii())
{
_stringBuffer.Clear();
_stringBuffer.Append(c);
return TagName(Next, HtmlToken.OpenTag());
}
else if (c == Specification.QuestionMark)
{
RaiseErrorOccurred(ErrorCode.BogusComment);
return BogusComment(c);
}
_state = HtmlParseMode.PCData;
RaiseErrorOccurred(ErrorCode.AmbiguousOpenTag);
_buffer.Append(Specification.LessThan);
return Data(c);
}
/// <summary>
/// See 8.2.4.9 End tag open state
/// </summary>
/// <param name="c">The next input character.</param>
HtmlToken TagEnd(Char c)
{
if (c.IsUppercaseAscii())
{
_stringBuffer.Clear();
_stringBuffer.Append(Char.ToLower(c));
return TagName(Next, HtmlToken.CloseTag());
}
else if (c.IsLowercaseAscii())
{
_stringBuffer.Clear();
_stringBuffer.Append(c);
return TagName(Next, HtmlToken.CloseTag());
}
else if (c == Specification.GreaterThan)
{
_state = HtmlParseMode.PCData;
RaiseErrorOccurred(ErrorCode.TagClosedWrong);
return Data(Next);
}
else if (c == Specification.EndOfFile)
{
Back();
RaiseErrorOccurred(ErrorCode.EOF);
_buffer.Append(Specification.LessThan).Append(Specification.Solidus);
return HtmlToken.EOF;
}
else
{
RaiseErrorOccurred(ErrorCode.BogusComment);
return BogusComment(c);
}
}
/// <summary>
/// See 8.2.4.16 RAWTEXT end tag name state
/// </summary>
/// <param name="c">The next input character.</param>
/// <param name="tag">The current tag token.</param>
/// <returns>The emitted token.</returns>
HtmlToken RawtextNameEndTag(Char c, HtmlTagToken tag)
{
var name = _stringBuffer.ToString();
var appropriateTag = name == _lastStartTag;
if (appropriateTag && c.IsSpaceCharacter())
{
tag.Name = name;
return AttributeBeforeName(Next, tag);
}
else if (appropriateTag && c == Specification.Solidus)
{
tag.Name = name;
return TagSelfClosing(Next, tag);
}
else if (appropriateTag && c == Specification.GreaterThan)
{
tag.Name = name;
return EmitTag(tag);
}
else if (c.IsUppercaseAscii())
{
_stringBuffer.Append(Char.ToLower(c));
return RawtextNameEndTag(Next, tag);
}
else if (c.IsLowercaseAscii())
{
_stringBuffer.Append(c);
return RawtextNameEndTag(Next, tag);
}
_buffer.Append(Specification.LessThan).Append(Specification.Solidus);
_buffer.Append(_stringBuffer.ToString());
return Rawtext(c);
}
/// <summary>
/// See 8.2.4.15 RAWTEXT end tag open state
/// </summary>
/// <param name="c">The next input character.</param>
HtmlToken RawtextEndTag(Char c)
{
if (c.IsUppercaseAscii())
{
_stringBuffer.Clear();
_stringBuffer.Append(Char.ToLower(c));
return RawtextNameEndTag(Next, HtmlToken.CloseTag());
}
else if (c.IsLowercaseAscii())
{
_stringBuffer.Clear();
_stringBuffer.Append(c);
return RawtextNameEndTag(Next, HtmlToken.CloseTag());
}
_buffer.Append(Specification.LessThan).Append(Specification.Solidus);
return Rawtext(c);
}