/// <summary>
/// Creates a pattern for the given pattern text, format info, template value, mapping resolver and time zone provider.
/// </summary>
/// <param name="patternText">Pattern text to create the pattern for</param>
/// <param name="formatInfo">The format info to use in the pattern</param>
/// <param name="templateValue">Template value to use for unspecified fields</param>
/// <param name="resolver">Resolver to apply when mapping local date/time values into the zone.</param>
/// <param name="zoneProvider">Time zone provider, used when parsing text which contains a time zone identifier.</param>
/// <returns>A pattern for parsing and formatting zoned date/times.</returns>
/// <exception cref="InvalidPatternException">The pattern text was invalid.</exception>
private static ZonedDateTimePattern Create(string patternText, NodaFormatInfo formatInfo,
ZoneLocalMappingResolver?resolver, IDateTimeZoneProvider?zoneProvider, ZonedDateTime templateValue)
{
Preconditions.CheckNotNull(patternText, nameof(patternText));
Preconditions.CheckNotNull(formatInfo, nameof(formatInfo));
var pattern = new ZonedDateTimePatternParser(templateValue, resolver, zoneProvider).ParsePattern(patternText, formatInfo);
return(new ZonedDateTimePattern(patternText, formatInfo, templateValue, resolver, zoneProvider, pattern));
}
/// <summary>
/// Creates a pattern for the given pattern text, format info, template value, mapping resolver and time zone provider.
/// </summary>
/// <param name="patternText">Pattern text to create the pattern for</param>
/// <param name="formatInfo">The format info to use in the pattern</param>
/// <param name="templateValue">Template value to use for unspecified fields</param>
/// <param name="resolver">Resolver to apply when mapping local date/time values into the zone.</param>
/// <param name="zoneProvider">Time zone provider, used when parsing text which contains a time zone identifier.</param>
/// <returns>A pattern for parsing and formatting zoned date/times.</returns>
/// <exception cref="InvalidPatternException">The pattern text was invalid.</exception>
internal static ZonedDateTimePattern Create(string patternText, NodaFormatInfo formatInfo,
ZoneLocalMappingResolver resolver, IDateTimeZoneProvider zoneProvider, ZonedDateTime templateValue)
{
Preconditions.CheckNotNull(patternText, "patternText");
Preconditions.CheckNotNull(formatInfo, "formatInfo");
Preconditions.CheckNotNull(resolver, "resolver");
var pattern = new ZonedDateTimePatternParser(templateValue, resolver, zoneProvider).ParsePattern(patternText, formatInfo);
return(new ZonedDateTimePattern(patternText, formatInfo, templateValue, resolver, zoneProvider, pattern));
}