internal static ParsingResult TryParse(string input, out MetricTimeSpan timeSpan)
{
timeSpan = null;
if (string.IsNullOrWhiteSpace(input))
{
return(ParsingResult.EmptyInputString);
}
var match = ParsingUtilities.Match(input, Patterns);
if (match == null)
{
return(ParsingResult.NotMatched);
}
int hours;
if (!ParsingUtilities.ParseNonnegativeInt(match, HoursGroupName, 0, out hours))
{
return(ParsingResult.Error(HoursIsOutOfRange));
}
int minutes;
if (!ParsingUtilities.ParseNonnegativeInt(match, MinutesGroupName, 0, out minutes))
{
return(ParsingResult.Error(MinutesIsOutOfRange));
}
int seconds;
if (!ParsingUtilities.ParseNonnegativeInt(match, SecondsGroupName, 0, out seconds))
{
return(ParsingResult.Error(SecondsIsOutOfRange));
}
int milliseconds;
if (!ParsingUtilities.ParseNonnegativeInt(match, MillisecondsGroupName, 0, out milliseconds))
{
return(ParsingResult.Error(MillisecondsIsOutOfRange));
}
timeSpan = new MetricTimeSpan(hours, minutes, seconds, milliseconds);
return(ParsingResult.Parsed);
}
private static long MetricTimeSpanToTicks(MetricTimeSpan timeSpan, TempoMap tempoMap)
{
var timeMicroseconds = timeSpan.TotalMicroseconds;
if (timeMicroseconds == 0)
{
return(0);
}
var valuesCache = tempoMap.GetValuesCache <MetricTempoMapValuesCache>();
var accumulatedMicroseconds = valuesCache.Microseconds.TakeWhile(m => m.Microseconds < timeMicroseconds).LastOrDefault();
var lastAccumulatedMicroseconds = accumulatedMicroseconds?.Microseconds ?? 0;
var lastTime = accumulatedMicroseconds?.Time ?? 0;
var lastTicksPerMicrosecond = accumulatedMicroseconds?.TicksPerMicrosecond ?? valuesCache.DefaultTicksPerMicrosecond;
return(RoundMicroseconds(lastTime + (timeMicroseconds - lastAccumulatedMicroseconds) * lastTicksPerMicrosecond));
}