public static string GetDefaultExtensionValue(string key)
{
Guard.ArgumentNotNull(key, "key");
switch (key)
{
case "hc":
return(IntlProviderOptions.ToStringValue(CldrUtility.GetDefaultHourCycle(IntlContext.RegionCode)));
case "ca":
foreach (string type in CldrUtility.GetPreferredCalenderTypes(IntlContext.RegionCode))
{
if (SupportedCalendars.ContainsKey(type))
{
return(type);
}
}
break;
}
if (SupportedValues.ContainsKey(key))
{
return(SupportedValues[key][0]);
}
return(null);
}
