///// <summary>
///// Gets/sets/resets legacy configuration setting "date.timezone".
///// </summary>
//internal static object GsrTimeZone(LibraryConfiguration/*!*/ local, LibraryConfiguration/*!*/ @default, object value, IniAction action)
//{
// string result = (local.Date.TimeZone != null) ? local.Date.TimeZone.StandardName : null;
// switch (action)
// {
// case IniAction.Set:
// {
// string name = Core.Convert.ObjectToString(value);
// TimeZoneInfo zone = GetTimeZone(name);
// if (zone == null)
// {
// PhpException.Throw(PhpError.Warning, LibResources.GetString("unknown_timezone", name));
// }
// else
// {
// local.Date.TimeZone = zone;
// }
// break;
// }
// case IniAction.Restore:
// local.Date.TimeZone = @default.Date.TimeZone;
// break;
// }
// return result;
//}
/// <summary>
/// Gets an instance of <see cref="TimeZone"/> corresponding to specified PHP name for time zone.
/// </summary>
/// <param name="phpName">PHP time zone name.</param>
/// <returns>The time zone or a <B>null</B> reference.</returns>
internal static TimeZoneInfo GetTimeZone(string /*!*/ phpName)
{
if (string.IsNullOrEmpty(phpName))
{
return(null);
}
// simple binary search (not the Array.BinarySearch)
var timezones = PhpTimeZone.s_lazyTimeZones.Value;
int a = 0, b = timezones.Length - 1;
while (a <= b)
{
int x = (a + b) >> 1;
int comparison = StringComparer.OrdinalIgnoreCase.Compare(timezones[x].PhpName, phpName);
if (comparison == 0)
{
return(timezones[x].Info);
}
if (comparison < 0)
{
a = x + 1;
}
else //if (comparison > 0)
{
b = x - 1;
}
}
// try custom offset or a known abbreviation:
var dt = new DateInfo();
var _ = 0;
if (dt.SetTimeZone(phpName, ref _))
{
// +00:00
// -00:00
// abbr
return(dt.ResolveTimeZone());
}
//
return(null);
}
