private Token _ReadNumber()
{
Debug.Assert(char.IsDigit(_current));
do
{
_buf.Append(_current);
_NextChar();
} while (char.IsDigit(_current) || '.' == _current || '_' == _current);
if (_current == 'e' || _current == 'E')
{
_buf.Append(_current);
_NextChar();
if (_current == '+' || _current == '-')
{
_buf.Append(_current);
_NextChar();
}
}
while (char.IsLetterOrDigit(_current) || '_' == _current)
{
_buf.Append(_current);
_NextChar();
}
MyNumber?num = MyNumber.TryParse(_buf.ToString());
if (num is null)
{
throw NewLexException($"{_buf} is not valid double");
}
else
{
return(new Token(num));
}
}
public override void Run()
{
ExpectTrue(MyNumber.TryParse("0x1234") is not null);
ExpectTrue(Utils.Compare(MyNumber.TryParse("0x1234"), MyNumber.TryParse("0x1234")) == 0);
//throw new NotImplementedException();
}