private static string ReadWord(TextReader textReader)
{
StringBuilder builder = new StringBuilder();
int r;
while((r = textReader.Read()) != -1)
{
var ch = (char)r;
bool isSpace = DataEncoder.IsSpace(ch);
if(isSpace && builder.Length == 0)
continue;
if(isSpace && builder.Length != 0)
break;
builder.Append((char)r);
}
return builder.ToString();
}
public static bool TryParse(string bitcoin, out Money nRet)
{
nRet = new Money(0);
if (string.IsNullOrEmpty(bitcoin))
{
return(false);
}
string strWhole = "";
long nUnits = 0;
int i = 0;
while (DataEncoder.IsSpace(bitcoin[i]))
{
if (i >= bitcoin.Length)
{
return(false);
}
i++;
}
if (i >= bitcoin.Length)
{
return(false);
}
bool minus = bitcoin[i] == '-';
if (minus || bitcoin[i] == '+')
{
i++;
}
for ( ; i < bitcoin.Length; i++)
{
if (bitcoin[i] == '.')
{
i++;
if (i >= bitcoin.Length)
{
break;
}
long nMult = CENT * 10;
while (isdigit(bitcoin[i]) && (nMult > 0))
{
nUnits += nMult * (bitcoin[i] - '0');
i++;
if (i >= bitcoin.Length)
{
break;
}
nMult /= 10;
}
break;
}
if (DataEncoder.IsSpace(bitcoin[i]))
{
break;
}
if (!isdigit(bitcoin[i]))
{
return(false);
}
strWhole += bitcoin[i];
}
for ( ; i < bitcoin.Length; i++)
{
if (!DataEncoder.IsSpace(bitcoin[i]))
{
return(false);
}
}
if (strWhole.Length > 10) // guard against 63 bit overflow
{
return(false);
}
if (nUnits < 0 || nUnits > COIN)
{
return(false);
}
var nWhole = BigInteger.Parse(strWhole);
var nValue = nWhole * COIN + nUnits;
nRet = new Money(minus ? -nValue : nValue);
return(true);
}
