public static unsafe void Format(StringBuffer formatter, TimeSpan timeSpan, StringView format)
{
const int tempCharsLength = 7;
var tempChars = stackalloc char[tempCharsLength];
formatter.EnsureCapacity(20);
if (timeSpan.Ticks < 0)
{
formatter.Append('-');
timeSpan = new TimeSpan(-timeSpan.Ticks);
}
var(days, hours, minutes, seconds, ticks) = timeSpan;
switch (ParseTimeSpanFormat(format))
{
case TimeSpanFormat.Constant:
if (days > 0)
{
formatter.Append(days, StringView.Empty);
formatter.Append('.');
}
AppendNumber(formatter, hours, 2, tempChars, tempCharsLength);
formatter.Append(':');
AppendNumber(formatter, minutes, 2, tempChars, tempCharsLength);
formatter.Append(':');
AppendNumber(formatter, seconds, 2, tempChars, tempCharsLength);
if (ticks != 0)
{
formatter.Append('.');
AppendNumber(formatter, ticks, 7, tempChars, tempCharsLength);
}
break;
case TimeSpanFormat.GeneralShort:
if (days > 0)
{
formatter.Append(days, StringView.Empty);
formatter.Append(':');
}
formatter.Append(hours, StringView.Empty);
formatter.Append(':');
AppendNumber(formatter, minutes, 2, tempChars, tempCharsLength);
formatter.Append(':');
AppendNumber(formatter, seconds, 2, tempChars, tempCharsLength);
if (ticks != 0)
{
formatter.Append('.');
AppendNumber(formatter, ticks, 7, tempChars, tempCharsLength);
formatter.TrimEnd('0');
}
break;
case TimeSpanFormat.GeneralLong:
formatter.Append(days, StringView.Empty);
formatter.Append(':');
AppendNumber(formatter, hours, 2, tempChars, tempCharsLength);
formatter.Append(':');
AppendNumber(formatter, minutes, 2, tempChars, tempCharsLength);
formatter.Append(':');
AppendNumber(formatter, seconds, 2, tempChars, tempCharsLength);
formatter.Append('.');
AppendNumber(formatter, ticks, 7, tempChars, tempCharsLength);
break;
}
}
static void NumberToString(StringBuffer formatter, ref Number number, char format, int maxDigits, CachedCulture culture, bool isDecimal = false)
{
// ANDing with 0xFFDF has the effect of uppercasing the character
switch (format & 0xFFDF)
{
case 'C':
{
var cultureData = culture.CurrencyData;
var bufferSize = cultureData.GetBufferSize(ref maxDigits, number.Scale);
RoundNumber(ref number, number.Scale + maxDigits);
var buffer = stackalloc char[bufferSize];
var ptr = FormatCurrency(
buffer,
ref number,
maxDigits,
cultureData,
number.Sign > 0 ? culture.CurrencyNegativePattern : culture.CurrencyPositivePattern,
culture.CurrencySymbol
);
formatter.Append(buffer, (int)(ptr - buffer));
break;
}
case 'F':
{
var cultureData = culture.FixedData;
var bufferSize = cultureData.GetBufferSize(ref maxDigits, number.Scale);
RoundNumber(ref number, number.Scale + maxDigits);
var buffer = stackalloc char[bufferSize];
var ptr = buffer;
if (number.Sign > 0)
{
AppendString(&ptr, cultureData.NegativeSign);
}
ptr = FormatFixed(ptr, ref number, maxDigits, cultureData);
formatter.Append(buffer, (int)(ptr - buffer));
break;
}
case 'N':
{
var cultureData = culture.NumberData;
var bufferSize = cultureData.GetBufferSize(ref maxDigits, number.Scale);
RoundNumber(ref number, number.Scale + maxDigits);
var buffer = stackalloc char[bufferSize];
var ptr = FormatNumber(
buffer,
ref number,
maxDigits,
number.Sign > 0 ? culture.NumberNegativePattern : culture.NumberPositivePattern,
cultureData
);
formatter.Append(buffer, (int)(ptr - buffer));
break;
}
case 'E':
{
var cultureData = culture.ScientificData;
var bufferSize = cultureData.GetBufferSize(ref maxDigits, number.Scale);
maxDigits++;
RoundNumber(ref number, maxDigits);
var buffer = stackalloc char[bufferSize];
var ptr = buffer;
if (number.Sign > 0)
{
AppendString(&ptr, cultureData.NegativeSign);
}
ptr = FormatScientific(
ptr,
ref number,
maxDigits,
format, // TODO: fix casing
cultureData.DecimalSeparator,
culture.PositiveSign,
culture.NegativeSign
);
formatter.Append(buffer, (int)(ptr - buffer));
break;
}
case 'P':
{
number.Scale += 2;
var cultureData = culture.PercentData;
var bufferSize = cultureData.GetBufferSize(ref maxDigits, number.Scale);
RoundNumber(ref number, number.Scale + maxDigits);
var buffer = stackalloc char[bufferSize];
var ptr = FormatPercent(
buffer,
ref number,
maxDigits,
cultureData,
number.Sign > 0 ? culture.PercentNegativePattern : culture.PercentPositivePattern,
culture.PercentSymbol
);
formatter.Append(buffer, (int)(ptr - buffer));
break;
}
case 'G':
{
var enableRounding = true;
if (maxDigits < 1)
{
if (isDecimal && maxDigits == -1)
{
// if we're formatting a decimal, default to 29 digits precision
// only for G formatting without a precision specifier
maxDigits = DecimalPrecision;
enableRounding = false;
}
else
{
maxDigits = number.Precision;
}
}
var bufferSize = maxDigits + culture.DecimalBufferSize;
var buffer = stackalloc char[bufferSize];
var ptr = buffer;
// round for G formatting only if a precision is given
// we need to handle the minus zero case also
if (enableRounding)
{
RoundNumber(ref number, maxDigits);
}
else if (isDecimal && number.Digits[0] == 0)
{
number.Sign = 0;
}
if (number.Sign > 0)
{
AppendString(&ptr, culture.NegativeSign);
}
ptr = FormatGeneral(
ptr,
ref number,
maxDigits,
(char)(format - ('G' - 'E')),
culture.NumberData.DecimalSeparator,
culture.PositiveSign,
culture.NegativeSign,
!enableRounding
);
formatter.Append(buffer, (int)(ptr - buffer));
break;
}
default:
throw new FormatException(string.Format(SR.UnknownFormatSpecifier, format));
}
}
static void NumberToCustomFormatString(StringBuffer formatter, ref Number number, StringView specifier, CachedCulture culture)
{
}
