/// <summary>Format the TimeSpan instance using the specified format.</summary>
private static StringBuilder FormatCustomized(TimeSpan value, string format, DateTimeFormatInfo dtfi)
{
Debug.Assert(dtfi != null);
int day = (int)(value.Ticks / TimeSpan.TicksPerDay);
long time = value.Ticks % TimeSpan.TicksPerDay;
if (value.Ticks < 0)
{
day = -day;
time = -time;
}
int hours = (int)(time / TimeSpan.TicksPerHour % 24);
int minutes = (int)(time / TimeSpan.TicksPerMinute % 60);
int seconds = (int)(time / TimeSpan.TicksPerSecond % 60);
int fraction = (int)(time % TimeSpan.TicksPerSecond);
long tmp = 0;
int i = 0;
int tokenLen;
StringBuilder result = StringBuilderCache.Acquire(InternalGlobalizationHelper.StringBuilderDefaultCapacity);
while (i < format.Length)
{
char ch = format[i];
int nextChar;
switch (ch)
{
case 'h':
tokenLen = DateTimeFormat.ParseRepeatPattern(format, i, ch);
if (tokenLen > 2)
{
throw new FormatException(SR.Format_InvalidString);
}
DateTimeFormat.FormatDigits(result, hours, tokenLen);
break;
case 'm':
tokenLen = DateTimeFormat.ParseRepeatPattern(format, i, ch);
if (tokenLen > 2)
{
throw new FormatException(SR.Format_InvalidString);
}
DateTimeFormat.FormatDigits(result, minutes, tokenLen);
break;
case 's':
tokenLen = DateTimeFormat.ParseRepeatPattern(format, i, ch);
if (tokenLen > 2)
{
throw new FormatException(SR.Format_InvalidString);
}
DateTimeFormat.FormatDigits(result, seconds, tokenLen);
break;
case 'f':
//
// The fraction of a second in single-digit precision. The remaining digits are truncated.
//
tokenLen = DateTimeFormat.ParseRepeatPattern(format, i, ch);
if (tokenLen > DateTimeFormat.MaxSecondsFractionDigits)
{
throw new FormatException(SR.Format_InvalidString);
}
tmp = fraction;
tmp /= TimeSpanParse.Pow10(DateTimeFormat.MaxSecondsFractionDigits - tokenLen);
result.Append((tmp).ToString(DateTimeFormat.fixedNumberFormats[tokenLen - 1], CultureInfo.InvariantCulture));
break;
case 'F':
//
// Displays the most significant digit of the seconds fraction. Nothing is displayed if the digit is zero.
//
tokenLen = DateTimeFormat.ParseRepeatPattern(format, i, ch);
if (tokenLen > DateTimeFormat.MaxSecondsFractionDigits)
{
throw new FormatException(SR.Format_InvalidString);
}
tmp = fraction;
tmp /= TimeSpanParse.Pow10(DateTimeFormat.MaxSecondsFractionDigits - tokenLen);
int effectiveDigits = tokenLen;
while (effectiveDigits > 0)
{
if (tmp % 10 == 0)
{
tmp = tmp / 10;
effectiveDigits--;
}
else
{
break;
}
}
if (effectiveDigits > 0)
{
result.Append((tmp).ToString(DateTimeFormat.fixedNumberFormats[effectiveDigits - 1], CultureInfo.InvariantCulture));
}
break;
case 'd':
//
// tokenLen == 1 : Day as digits with no leading zero.
// tokenLen == 2+: Day as digits with leading zero for single-digit days.
//
tokenLen = DateTimeFormat.ParseRepeatPattern(format, i, ch);
if (tokenLen > 8)
{
throw new FormatException(SR.Format_InvalidString);
}
DateTimeFormat.FormatDigits(result, day, tokenLen, true);
break;
case '\'':
case '\"':
tokenLen = DateTimeFormat.ParseQuoteString(format, i, result);
break;
case '%':
// Optional format character.
// For example, format string "%d" will print day
// Most of the cases, "%" can be ignored.
nextChar = DateTimeFormat.ParseNextChar(format, i);
// nextChar will be -1 if we already reach the end of the format string.
// Besides, we will not allow "%%" appear in the pattern.
if (nextChar >= 0 && nextChar != (int)'%')
{
result.Append(TimeSpanFormat.FormatCustomized(value, ((char)nextChar).ToString(), dtfi));
tokenLen = 2;
}
else
{
//
// This means that '%' is at the end of the format string or
// "%%" appears in the format string.
//
throw new FormatException(SR.Format_InvalidString);
}
break;
case '\\':
// Escaped character. Can be used to insert character into the format string.
// For example, "\d" will insert the character 'd' into the string.
//
nextChar = DateTimeFormat.ParseNextChar(format, i);
if (nextChar >= 0)
{
result.Append(((char)nextChar));
tokenLen = 2;
}
else
{
//
// This means that '\' is at the end of the formatting string.
//
throw new FormatException(SR.Format_InvalidString);
}
break;
default:
throw new FormatException(SR.Format_InvalidString);
}
i += tokenLen;
}
return(result);
}
/// <summary>Format the TimeSpan instance using the specified format.</summary>
private static StringBuilder FormatStandard(TimeSpan value, bool isInvariant, string format, Pattern pattern)
{
StringBuilder sb = StringBuilderCache.Acquire(InternalGlobalizationHelper.StringBuilderDefaultCapacity);
int day = (int)(value.Ticks / TimeSpan.TicksPerDay);
long time = value.Ticks % TimeSpan.TicksPerDay;
if (value.Ticks < 0)
{
day = -day;
time = -time;
}
int hours = (int)(time / TimeSpan.TicksPerHour % 24);
int minutes = (int)(time / TimeSpan.TicksPerMinute % 60);
int seconds = (int)(time / TimeSpan.TicksPerSecond % 60);
int fraction = (int)(time % TimeSpan.TicksPerSecond);
FormatLiterals literal;
if (isInvariant)
{
literal = value.Ticks < 0 ?
NegativeInvariantFormatLiterals :
PositiveInvariantFormatLiterals;
}
else
{
literal = new FormatLiterals();
literal.Init(format, pattern == Pattern.Full);
}
if (fraction != 0)
{
// truncate the partial second to the specified length
fraction = (int)(fraction / TimeSpanParse.Pow10(DateTimeFormat.MaxSecondsFractionDigits - literal.ff));
}
// Pattern.Full: [-]dd.hh:mm:ss.fffffff
// Pattern.Minimum: [-][d.]hh:mm:ss[.fffffff]
sb.Append(literal.Start); // [-]
if (pattern == Pattern.Full || day != 0)
{
sb.Append(day); // [dd]
sb.Append(literal.DayHourSep); // [.]
} //
AppendNonNegativeInt32(sb, hours, literal.hh); // hh
sb.Append(literal.HourMinuteSep); // :
AppendNonNegativeInt32(sb, minutes, literal.mm); // mm
sb.Append(literal.MinuteSecondSep); // :
AppendNonNegativeInt32(sb, seconds, literal.ss); // ss
if (!isInvariant && pattern == Pattern.Minimum)
{
int effectiveDigits = literal.ff;
while (effectiveDigits > 0)
{
if (fraction % 10 == 0)
{
fraction = fraction / 10;
effectiveDigits--;
}
else
{
break;
}
}
if (effectiveDigits > 0)
{
sb.Append(literal.SecondFractionSep); // [.FFFFFFF]
sb.Append((fraction).ToString(DateTimeFormat.fixedNumberFormats[effectiveDigits - 1], CultureInfo.InvariantCulture));
}
}
else if (pattern == Pattern.Full || fraction != 0)
{
sb.Append(literal.SecondFractionSep); // [.]
AppendNonNegativeInt32(sb, fraction, literal.ff); // [fffffff]
}
sb.Append(literal.End);
return(sb);
}
