/// <summary>
/// 4.4.13. Number-rest state
/// </summary>
CssToken NumberRest()
{
var current = GetNext();
while (true)
{
if (current.IsDigit())
{
_stringBuffer.Append(current);
}
else if (current.IsNameStart())
{
var number = FlushBuffer();
_stringBuffer.Append(current);
return(Dimension(number));
}
else if (IsValidEscape(current))
{
current = GetNext();
var number = FlushBuffer();
_stringBuffer.Append(ConsumeEscape(current));
return(Dimension(number));
}
else
{
break;
}
current = GetNext();
}
switch (current)
{
case Symbols.Dot:
current = GetNext();
if (current.IsDigit())
{
_stringBuffer.Append(Symbols.Dot).Append(current);
return(NumberFraction());
}
Back();
return(new CssNumberToken(FlushBuffer()));
case '%':
return(CssUnitToken.Percentage(FlushBuffer()));
case 'e':
case 'E':
return(NumberExponential());
case Symbols.Minus:
return(NumberDash());
default:
Back();
return(new CssNumberToken(FlushBuffer()));
}
}
/// <summary>
/// 4.4.13. Number-rest state
/// </summary>
CssToken NumberRest(Char current)
{
while (true)
{
if (current.IsDigit())
{
_stringBuffer.Append(current);
}
else if (current.IsNameStart())
{
var number = FlushBuffer();
_stringBuffer.Append(current);
return(Dimension(_src.Next, number));
}
else if (IsValidEscape(current))
{
current = _src.Next;
var number = FlushBuffer();
_stringBuffer.Append(ConsumeEscape(current));
return(Dimension(_src.Next, number));
}
else
{
break;
}
current = _src.Next;
}
switch (current)
{
case Specification.Dot:
current = _src.Next;
if (current.IsDigit())
{
_stringBuffer.Append(Specification.Dot).Append(current);
return(NumberFraction(_src.Next));
}
_src.Back();
return(CssToken.Number(FlushBuffer()));
case '%':
return(CssUnitToken.Percentage(FlushBuffer()));
case 'e':
case 'E':
return(NumberExponential(current));
case Specification.Minus:
return(NumberDash(current));
default:
_src.Back();
return(CssToken.Number(FlushBuffer()));
}
}
/// <summary>
/// 4.4.15. Dimension state
/// </summary>
CssToken Dimension(String number)
{
while (true)
{
var current = GetNext();
if (current.IsLetter())
{
_stringBuffer.Append(current);
}
else if (IsValidEscape(current))
{
current = GetNext();
_stringBuffer.Append(ConsumeEscape(current));
}
else
{
Back();
return(CssUnitToken.Dimension(number, FlushBuffer()));
}
}
}
/// <summary>
/// 4.4.15. Dimension state
/// </summary>
CssToken Dimension(Char current, String number)
{
while (true)
{
if (current.IsName())
{
_stringBuffer.Append(current);
}
else if (IsValidEscape(current))
{
current = _src.Next;
_stringBuffer.Append(ConsumeEscape(current));
}
else
{
_src.Back();
return(CssUnitToken.Dimension(number, FlushBuffer()));
}
current = _src.Next;
}
}
