/// <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(Next, tag);
}
else if (c == Specification.Ampersand)
{
var value = CharacterReference(Next, Specification.GreaterThan);
if (value == null)
_stringBuffer.Append(Specification.Ampersand);
else
_stringBuffer.Append(value);
}
else if (c == Specification.GreaterThan)
{
tag.SetAttributeValue(_stringBuffer.ToString());
return EmitTag(tag);
}
else if (c == Specification.Null)
{
RaiseErrorOccurred(ErrorCode.Null);
_stringBuffer.Append(Specification.Replacement);
}
else if (c == Specification.DoubleQuote || c == Specification.SingleQuote || c == Specification.LessThan || c == Specification.Equality || c == Specification.CurvedQuote)
{
RaiseErrorOccurred(ErrorCode.AttributeValueInvalid);
_stringBuffer.Append(c);
}
else if (c == Specification.EndOfFile)
return HtmlToken.EOF;
else
_stringBuffer.Append(c);
c = 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.SingleQuote)
{
tag.SetAttributeValue(_stringBuffer.ToString());
return AttributeAfterValue(Next, tag);
}
else if (c == Specification.Ampersand)
{
var value = CharacterReference(Next, Specification.SingleQuote);
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.EndOfFile)
return HtmlToken.EOF;
else
_stringBuffer.Append(c);
c = Next;
}
}
