/// <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>
/// 4.4.16. SciNotation state
/// </summary>
CssToken SciNotation(Char current)
{
while (true)
{
if (current.IsDigit())
{
stringBuffer.Append(current);
}
else
{
src.Back();
return(CssToken.Number(FlushBuffer()));
}
current = src.Next;
}
}
/// <summary>
/// Substate of several Number states.
/// </summary>
CssToken NumberDash(Char current)
{
current = src.Next;
if (current.IsNameStart())
{
var number = FlushBuffer();
stringBuffer.Append(Specification.MINUS).Append(current);
return(Dimension(src.Next, number));
}
else if (IsValidEscape(current))
{
current = src.Next;
var number = FlushBuffer();
stringBuffer.Append(Specification.MINUS).Append(ConsumeEscape(current));
return(Dimension(src.Next, number));
}
else
{
src.Back(2);
return(CssToken.Number(FlushBuffer()));
}
}
