public static string NumberToString(string format, NumberFormatInfo nfi, Decimal value)
{
String hex;
char specifier;
int precision, digits, decimals;
bool underflow;
//Console.WriteLine("!DecimalFormatter ToString format="+format);
format = format.Trim();
if (!DecimalFormatter.ParseFormat(format, out specifier, out precision))
{
throw new FormatException(Locale.GetText("The specified format is invalid"));
}
if (specifier == 'X')
{
digits = (precision >= 0) ? precision : 0;
underflow = DecimalEx.decimal2HexString(value, digits, format[0] == 'x', out hex);
if (underflow)
{
throw new FormatException(Locale.GetText("The specified format is invalid"));
}
return(hex);
}
digits = -1;
decimals = 0;
// first calculate number of digits or decimals needed for format
switch (specifier)
{
case 'C':
decimals = (precision >= 0) ? precision : nfi.CurrencyDecimalDigits;
break;
case 'F': goto case 'N';
case 'N':
decimals = (precision >= 0) ? precision : nfi.NumberDecimalDigits;
break;
case 'G':
digits = (precision >= 0) ? precision : 0;
break;
case 'E':
digits = (precision >= 0) ? precision + 1 : 7;
break;
case 'P':
decimals = (precision >= 0) ? precision + 2 : nfi.PercentDecimalDigits + 2;
break;
case 'Z':
digits = 0;
break;
}
// get digit string
const int bufSize = 40;
int decPos = 0, sign = 0;
char[] buf = new char[bufSize];
// Console.WriteLine(" !calling decimal2string with lo {1}, mid {2}, hi {3} ,ss={0}",value.ss32,value.lo32,value.mid32,value.hi32);
DecimalEx.decimal2string(value, digits, decimals, buf, bufSize, out decPos, out sign);
string TempString = new String(buf);
TempString = TempString.Trim(new char[] { (char)0x0 });
//Console.WriteLine(" decimal2string returned '{0}'", TempString);
StringBuilder sb = new StringBuilder(TempString, TempString.Length);
if (sb.ToString() == String.Empty && decPos > 0 && sign == 0)
{
sb.Append('0');
}
// Console.WriteLine(" str '{0}', digits {1}, decPos {2}, sign {3} specifier={4}", TempString, digits, decPos, sign,specifier);
// now build the format
switch (specifier)
{
case 'C': return(FormatCurrency(nfi, sb, decimals, decPos, sign));
case 'N': return(FormatNumber(nfi, sb, decimals, decPos, sign));
case 'F': return(FormatFixedPoint(nfi, sb, decimals, decPos, sign));
case 'G': return(FormatGeneral(nfi, sb, digits, decPos, sign, format[0]));
case 'E': return(FormatExponential(nfi, sb, digits, decPos, sign, format[0], true));
case 'P': return(FormatPercent(nfi, sb, decimals, decPos, sign));
case 'Z': return(FormatNormalized(nfi, sb, digits, decPos, sign));
default:
throw new FormatException(Locale.GetText("The specified format is invalid"));
}
}
