private Block NumberRest(char current)
{
while (true)
{
if (current.IsDigit())
{
_buffer.Append(current);
}
else if (current.IsNameStart())
{
var number = FlushBuffer();
_buffer.Append(current);
return(Dimension(_stylesheetReader.Next, number));
}
else if (IsValidEscape(current))
{
current = _stylesheetReader.Next;
var number = FlushBuffer();
_buffer.Append(ConsumeEscape(current));
return(Dimension(_stylesheetReader.Next, number));
}
else
{
break;
}
current = _stylesheetReader.Next;
}
switch (current)
{
case Specification.Period:
current = _stylesheetReader.Next;
if (current.IsDigit())
{
_buffer.Append(Specification.Period).Append(current);
return(NumberFraction(_stylesheetReader.Next));
}
_stylesheetReader.Back();
return(Block.Number(FlushBuffer()));
case '%':
return(UnitBlock.Percentage(FlushBuffer()));
case 'e':
case 'E':
return(NumberExponential(current));
case Specification.MinusSign:
return(NumberDash(current));
default:
_stylesheetReader.Back();
return(Block.Number(FlushBuffer()));
}
}
private Block Dimension(char current, string number)
{
while (true)
{
if (current.IsName())
{
_buffer.Append(current);
}
else if (IsValidEscape(current))
{
current = _stylesheetReader.Next;
_buffer.Append(ConsumeEscape(current));
}
else
{
_stylesheetReader.Back();
return(UnitBlock.Dimension(number, FlushBuffer()));
}
current = _stylesheetReader.Next;
}
}
