/// <summary>
/// See 8.2.4.40 Attribute value (unquoted) state
/// </summary>
/// <param name="c">The next input character.</param>
/// <param name="tag">The current tag token.</param>
/// <returns>The emitted token.</returns>
HtmlToken AttributeUnquotedValue(Char c, HtmlTagToken tag)
{
while (true)
{
if (c.IsSpaceCharacter())
{
tag.SetAttributeValue(_stringBuffer.ToString());
return AttributeBeforeName(_src.Next, tag);
}
else if (c == Specification.AMPERSAND)
{
var value = CharacterReference(_src.Next, Specification.GT);
if (value == null)
_stringBuffer.Append(Specification.AMPERSAND);
else
_stringBuffer.Append(value);
}
else if (c == Specification.GT)
{
tag.SetAttributeValue(_stringBuffer.ToString());
return EmitTag(tag);
}
else if (c == Specification.NULL)
{
RaiseErrorOccurred(ErrorCode.NULL);
_stringBuffer.Append(Specification.REPLACEMENT);
}
else if (c == Specification.DQ || c == Specification.SQ || c == Specification.LT || c == Specification.EQ || c == Specification.CQ)
{
RaiseErrorOccurred(ErrorCode.AttributeValueInvalid);
_stringBuffer.Append(c);
}
else if (c == Specification.EOF)
return HtmlToken.EOF;
else
_stringBuffer.Append(c);
c = _src.Next;
}
}
/// <summary>
/// See 8.2.4.39 Attribute value (single-quoted) state
/// </summary>
/// <param name="c">The next input character.</param>
/// <param name="tag">The current tag token.</param>
/// <returns>The emitted token.</returns>
HtmlToken AttributeSingleQuotedValue(Char c, HtmlTagToken tag)
{
while (true)
{
if (c == Specification.SQ)
{
tag.SetAttributeValue(_stringBuffer.ToString());
return AttributeAfterValue(_src.Next, tag);
}
else if (c == Specification.AMPERSAND)
{
var value = CharacterReference(_src.Next, Specification.SQ);
if (value == null)
_stringBuffer.Append(Specification.AMPERSAND);
else
_stringBuffer.Append(value);
}
else if (c == Specification.NULL)
{
RaiseErrorOccurred(ErrorCode.NULL);
_stringBuffer.Append(Specification.REPLACEMENT);
}
else if (c == Specification.EOF)
return HtmlToken.EOF;
else
_stringBuffer.Append(c);
c = _src.Next;
}
}