protected override void InitInternal(ICollection <string> locales, DateTimeFormatOptions options)
{
Hashtable ht = new Hashtable();
LocaleMatcher matcher = options.LocaleMatcher;
ht["ca"] = options.Calendar;
ht["nu"] = options.NumberingSystem;
bool? hour12 = options.Hour12;
HourCycle hourCycle = options.HourCycle;
if (hour12 != default)
{
hourCycle = HourCycle.Unspecified;
}
ht["hc"] = IntlProviderOptions.ToStringValue(hourCycle);
this.Locale = ResolveLocale(locales, matcher, relevantExtensionKeys, ht, out ht);
this.Calendar = (string)ht["ca"];
this.NumberingSystem = (string)ht["nu"];
string tz = options.TimeZone;
if (tz != null)
{
if (!IntlUtility.IsValidTimeZoneName(tz))
{
throw new EcmaRangeErrorException("Invalid time zone specified: {0}", tz);
}
this.TimeZone = IntlUtility.CanonicalizeTimeZoneName(tz);
}
else
{
this.TimeZone = IntlContext.DefaultTimeZone;
}
this.FormatMatcher = options.FormatMatcher;
DateTimePartStyles styles = new DateTimePartStyles(options);
HourCycle finalHourCycle = IntlProviderOptions.ParseEnum <HourCycle>((string)ht["hc"]);
this.HourCycle = hour12 == default ? finalHourCycle : NormalizeHourCycle(finalHourCycle, hour12.Value);
this.Hour12 = this.HourCycle == HourCycle.Hour11 || this.HourCycle == HourCycle.Hour12;
this.format = GetBestFormat(styles);
this.calendar = IntlUtility.SupportedCalendars[this.Calendar];
this.DateTimePartStyles = format.Styles;
this.BoundFormat = Literal.FunctionLiteral(this.FormatInternal);
}
private static int GetHourInHourCycle(int value, HourCycle hc)
{
if (hc == HourCycle.Hour11 || hc == HourCycle.Hour12)
{
value = value % 12;
}
if (value == 0)
{
if (hc == HourCycle.Hour12)
{
value = 12;
}
else if (hc == HourCycle.Hour24)
{
value = 24;
}
}
return(value);
}
private static HourCycle NormalizeHourCycle(HourCycle hc, bool hour12)
{
return(hour12
? hc == HourCycle.Hour11 || hc == HourCycle.Hour23 ? HourCycle.Hour11 : HourCycle.Hour12
: hc == HourCycle.Hour11 || hc == HourCycle.Hour23 ? HourCycle.Hour23 : HourCycle.Hour24);
}
