private static bool PopulateDirectValues(string langKey, TimeZoneValues values, string timeZoneId, string metaZone, bool abbreviations)
{
if (!Data.CldrLanguageData.ContainsKey(langKey))
return false;
var langData = Data.CldrLanguageData[langKey];
var langNames = abbreviations ? langData.ShortNames : langData.LongNames;
bool found = false;
if (langNames.ContainsKey(timeZoneId))
{
found = true;
var names = langNames[timeZoneId];
values.Generic = values.Generic ?? names.Generic;
values.Standard = values.Standard ?? names.Standard;
values.Daylight = values.Daylight ?? names.Daylight;
}
if (metaZone != null && langNames.ContainsKey(metaZone))
{
found = true;
var names = langNames[metaZone];
values.Generic = values.Generic ?? names.Generic;
values.Standard = values.Standard ?? names.Standard;
values.Daylight = values.Daylight ?? names.Daylight;
}
return found;
}
private static void SearchLanguages(string languageKey, TimeZoneValues values, Action <string> action)
{
while (languageKey != null && (values.Generic == null || values.Standard == null || values.Daylight == null))
{
action(languageKey);
languageKey = GetLanguageSubkey(languageKey);
}
}
private static TimeZoneValues GetNames(string timeZoneId, string languageKey, bool abbreviations)
{
if (TZConvert.KnownWindowsTimeZoneIds.Contains(timeZoneId, StringComparer.OrdinalIgnoreCase))
{
timeZoneId = TZConvert.WindowsToIana(timeZoneId);
}
timeZoneId = GetCldrCanonicalId(timeZoneId);
if (timeZoneId == null)
{
throw new ArgumentException("Invalid Time Zone", nameof(timeZoneId));
}
if (abbreviations && timeZoneId == "Etc/GMT")
{
return new TimeZoneValues {
Generic = "UTC", Standard = "UTC", Daylight = "UTC"
}
}
;
string metaZone = GetMetazone(timeZoneId);
var values = new TimeZoneValues();
// First try for direct values
var found = false;
SearchLanguages(languageKey, values, langKey =>
{
bool b = PopulateDirectValues(langKey, values, timeZoneId, metaZone, abbreviations);
if (b)
{
found = true;
}
});
var countries = new List <string>();
if (Data.CldrZoneCountries.TryGetValue(timeZoneId, out string[] c))
private static TimeZoneValues GetNames(string timeZoneId, string languageKey, bool abbreviations)
{
if (!timeZoneId.Contains("/"))
{
timeZoneId = ConvertWindowsToIana(timeZoneId);
}
timeZoneId = GetCldrCanonicalId(timeZoneId);
if (timeZoneId == null)
{
throw new ArgumentException("Invalid Time Zone", nameof(timeZoneId));
}
if (abbreviations && timeZoneId == "Etc/GMT")
{
return(new TimeZoneValues {
Generic = "UTC", Standard = "UTC", Daylight = "UTC"
});
}
var metaZone = GetMetazone(timeZoneId);
var values = new TimeZoneValues();
// First try for direct values
bool found = false;
SearchLanguages(languageKey, values, langKey =>
{
var b = PopulateDirectValues(langKey, values, timeZoneId, metaZone, abbreviations);
if (b)
{
found = true;
}
});
var countries = new List <string>();
string[] c;
if (Data.CldrZoneCountries.TryGetValue(timeZoneId, out c))
{
countries.AddRange(c);
}
if (Data.TzdbZoneCountries.TryGetValue(timeZoneId, out c))
{
countries.AddRange(c);
}
foreach (var alias in Data.CldrAliases.Where(x => x.Value == timeZoneId))
{
foreach (var item in Data.TzdbZoneCountries
.Where(item => string.Equals(item.Key, alias.Key, StringComparison.OrdinalIgnoreCase)))
{
countries.AddRange(item.Value);
}
}
var country = countries.FirstOrDefault(x => x != "001");
if (abbreviations && country != null)
{
// try using the specific locale for the zone
var lang = languageKey.Split('_', '-')[0] + "_" + country.ToLowerInvariant();
var b = PopulateDirectValues(lang, values, timeZoneId, metaZone, true);
if (b)
{
found = true;
}
// try english as a last resort
if (values.Generic == null || values.Standard == null || values.Daylight == null)
{
b = PopulateDirectValues("en_" + country.ToLowerInvariant(), values, timeZoneId, metaZone, true);
if (b)
{
found = true;
}
}
}
if (country == "RU")
{
// special case for Russia to force city names in all time zones
found = false;
}
if (found)
{
// apply type fallback rules
values.Generic = values.Generic ?? (values.Daylight == null ? values.Standard : null);
values.Daylight = values.Daylight ?? values.Generic;
// return whatever we have for abbreviations
if (abbreviations)
{
return(values);
}
// return names if everything is complete
if (values.Generic != null && values.Standard != null && values.Daylight != null)
{
return(values);
}
}
string regionName = null;
if (country != null)
{
SearchLanguages(languageKey, values, key =>
{
if (regionName != null)
{
return;
}
var langData = Data.CldrLanguageData[key];
if (langData != null && langData.CountryNames.ContainsKey(country))
{
regionName = langData.CountryNames[country];
}
});
}
if (country == "RU")
{
// special case for Russia to force city names in all time zones
regionName = null;
values = new TimeZoneValues();
}
if (regionName == null)
{
SearchLanguages(languageKey, values, key =>
{
if (regionName != null)
{
return;
}
var langData = Data.CldrLanguageData[key];
if (langData != null && langData.CityNames.ContainsKey(timeZoneId))
{
regionName = langData.CityNames[timeZoneId];
}
});
}
if (regionName == null)
{
regionName = timeZoneId.Split('/').Last().Replace("_", " ");
}
if (timeZoneId.StartsWith("Etc/GMT+") || timeZoneId.StartsWith("Etc/GMT-"))
{
values = GetNames("UTC", languageKey, abbreviations);
var sign = timeZoneId[7] == '+' ? '-' : '+';
var num = timeZoneId.Substring(8);
var s = (abbreviations ? "" : " ") + sign + num;
values.Generic += s;
values.Standard += s;
values.Daylight += s;
return(values);
}
SearchLanguages(languageKey, values, key =>
{
var langData = Data.CldrLanguageData[key];
if (langData == null)
{
return;
}
var genericFormat = langData.Formats?.Generic;
if (genericFormat != null)
{
values.Generic = values.Generic ?? genericFormat.Replace("{0}", regionName);
}
var standardFormat = langData.Formats?.Standard;
if (standardFormat != null)
{
values.Standard = values.Standard ?? standardFormat.Replace("{0}", regionName);
}
var daylightFormat = langData.Formats?.Daylight;
if (daylightFormat != null)
{
values.Daylight = values.Daylight ?? daylightFormat.Replace("{0}", regionName);
}
});
if (values.Generic == null && values.Standard == null && languageKey != "en")
{
// when all else fails, return the English values
return(GetNames(timeZoneId, "en", abbreviations));
}
return(values);
}
private static TimeZoneValues GetNames(string timeZoneId, string languageKey, bool abbreviations)
{
if (!timeZoneId.Contains("/"))
timeZoneId = ConvertWindowsToIana(timeZoneId);
timeZoneId = GetCldrCanonicalId(timeZoneId);
if (timeZoneId == null)
throw new ArgumentException("Invalid Time Zone", "timeZoneId");
var metaZone = GetMetazone(timeZoneId);
var values = new TimeZoneValues();
var key = languageKey;
while (key != null && (values.Generic == null || values.Standard == null || values.Daylight == null))
{
var langData = Data.CldrLanguageData[key];
if (langData != null)
{
var langNames = abbreviations ? langData.ShortNames : langData.LongNames;
if (langNames.ContainsKey(timeZoneId))
{
var names = langNames[timeZoneId];
values.Generic = values.Generic ?? names.Generic;
values.Standard = values.Standard ?? names.Standard;
values.Daylight = values.Daylight ?? names.Daylight;
}
if (metaZone != null && langNames.ContainsKey(metaZone))
{
var names = langNames[metaZone];
values.Generic = values.Generic ?? names.Generic;
values.Standard = values.Standard ?? names.Standard;
values.Daylight = values.Daylight ?? names.Daylight;
}
}
key = GetLanguageSubkey(key);
}
if (values.Generic != null && values.Standard != null && values.Daylight != null)
return values;
if (abbreviations)
{
if (values.Generic == null)
{
values.Generic = Data.CldrLanguageData.Where(x=> x.Key.StartsWith("en"))
.Select(x => x.Value.ShortNames.ContainsKey(timeZoneId)
? x.Value.ShortNames[timeZoneId].Generic
: metaZone != null && x.Value.ShortNames.ContainsKey(metaZone)
? x.Value.ShortNames[metaZone].Generic
: null)
.FirstOrDefault(x => x != null);
}
if (values.Standard == null)
{
values.Standard = Data.CldrLanguageData.Where(x => x.Key.StartsWith("en"))
.Select(x => x.Value.ShortNames.ContainsKey(timeZoneId)
? x.Value.ShortNames[timeZoneId].Standard
: metaZone != null && x.Value.ShortNames.ContainsKey(metaZone)
? x.Value.ShortNames[metaZone].Standard
: null)
.FirstOrDefault(x => x != null);
}
if (values.Daylight == null)
{
values.Daylight = Data.CldrLanguageData.Where(x => x.Key.StartsWith("en"))
.Select(x => x.Value.ShortNames.ContainsKey(timeZoneId)
? x.Value.ShortNames[timeZoneId].Daylight
: metaZone != null && x.Value.ShortNames.ContainsKey(metaZone)
? x.Value.ShortNames[metaZone].Daylight
: null)
.FirstOrDefault(x => x != null);
}
if (values.Generic == null && values.Daylight == null)
values.Generic = values.Standard;
return values;
}
string country;
if (Data.CldrZoneCountries.TryGetValue(timeZoneId, out country))
{
string countryName = null;
key = languageKey;
while (key != null)
{
var langData = Data.CldrLanguageData[key];
if (langData != null)
{
if (langData.CountryNames.ContainsKey(country))
{
countryName = langData.CountryNames[country];
break;
}
}
key = GetLanguageSubkey(key);
}
if (countryName == null)
return values;
key = languageKey;
while (key != null && (values.Generic == null || values.Standard == null || values.Daylight == null))
{
var langData = Data.CldrLanguageData[key];
if (langData != null)
{
var genericFormat = langData.Formats.Generic;
if (genericFormat != null)
values.Generic = values.Generic ?? genericFormat.Replace("{0}", countryName);
var standardFormat = langData.Formats.Standard;
if (standardFormat != null)
values.Standard = values.Standard ?? standardFormat.Replace("{0}", countryName);
var daylightFormat = langData.Formats.Daylight;
if (daylightFormat != null)
values.Daylight = values.Daylight ?? daylightFormat.Replace("{0}", countryName);
}
key = GetLanguageSubkey(key);
}
}
if (values.Generic == null && values.Daylight == null)
values.Generic = values.Standard;
return values;
}
private static TimeZoneValues GetNames(string timeZoneId, string languageKey, bool abbreviations)
{
if (!timeZoneId.Contains("/"))
{
timeZoneId = ConvertWindowsToIana(timeZoneId);
}
timeZoneId = GetCldrCanonicalId(timeZoneId);
if (timeZoneId == null)
{
throw new ArgumentException("Invalid Time Zone", "timeZoneId");
}
var metaZone = GetMetazone(timeZoneId);
var values = new TimeZoneValues();
var key = languageKey;
while (key != null && (values.Generic == null || values.Standard == null || values.Daylight == null))
{
var langData = Data.CldrLanguageData[key];
if (langData != null)
{
var langNames = abbreviations ? langData.ShortNames : langData.LongNames;
if (langNames.ContainsKey(timeZoneId))
{
var names = langNames[timeZoneId];
values.Generic = values.Generic ?? names.Generic;
values.Standard = values.Standard ?? names.Standard;
values.Daylight = values.Daylight ?? names.Daylight;
}
if (metaZone != null && langNames.ContainsKey(metaZone))
{
var names = langNames[metaZone];
values.Generic = values.Generic ?? names.Generic;
values.Standard = values.Standard ?? names.Standard;
values.Daylight = values.Daylight ?? names.Daylight;
}
}
key = GetLanguageSubkey(key);
}
if (values.Generic != null && values.Standard != null && values.Daylight != null)
{
return(values);
}
if (abbreviations)
{
if (values.Generic == null)
{
values.Generic = Data.CldrLanguageData.Where(x => x.Key.StartsWith("en"))
.Select(x => x.Value.ShortNames.ContainsKey(timeZoneId)
? x.Value.ShortNames[timeZoneId].Generic
: metaZone != null && x.Value.ShortNames.ContainsKey(metaZone)
? x.Value.ShortNames[metaZone].Generic
: null)
.FirstOrDefault(x => x != null);
}
if (values.Standard == null)
{
values.Standard = Data.CldrLanguageData.Where(x => x.Key.StartsWith("en"))
.Select(x => x.Value.ShortNames.ContainsKey(timeZoneId)
? x.Value.ShortNames[timeZoneId].Standard
: metaZone != null && x.Value.ShortNames.ContainsKey(metaZone)
? x.Value.ShortNames[metaZone].Standard
: null)
.FirstOrDefault(x => x != null);
}
if (values.Daylight == null)
{
values.Daylight = Data.CldrLanguageData.Where(x => x.Key.StartsWith("en"))
.Select(x => x.Value.ShortNames.ContainsKey(timeZoneId)
? x.Value.ShortNames[timeZoneId].Daylight
: metaZone != null && x.Value.ShortNames.ContainsKey(metaZone)
? x.Value.ShortNames[metaZone].Daylight
: null)
.FirstOrDefault(x => x != null);
}
if (values.Generic == null && values.Daylight == null)
{
values.Generic = values.Standard;
}
return(values);
}
string country;
if (Data.CldrZoneCountries.TryGetValue(timeZoneId, out country))
{
string countryName = null;
key = languageKey;
while (key != null)
{
var langData = Data.CldrLanguageData[key];
if (langData != null)
{
if (langData.CountryNames.ContainsKey(country))
{
countryName = langData.CountryNames[country];
break;
}
}
key = GetLanguageSubkey(key);
}
if (countryName == null)
{
return(values);
}
key = languageKey;
while (key != null && (values.Generic == null || values.Standard == null || values.Daylight == null))
{
var langData = Data.CldrLanguageData[key];
if (langData != null)
{
var genericFormat = langData.Formats.Generic;
if (genericFormat != null)
{
values.Generic = values.Generic ?? genericFormat.Replace("{0}", countryName);
}
var standardFormat = langData.Formats.Standard;
if (standardFormat != null)
{
values.Standard = values.Standard ?? standardFormat.Replace("{0}", countryName);
}
var daylightFormat = langData.Formats.Daylight;
if (daylightFormat != null)
{
values.Daylight = values.Daylight ?? daylightFormat.Replace("{0}", countryName);
}
}
key = GetLanguageSubkey(key);
}
}
if (values.Generic == null && values.Daylight == null)
{
values.Generic = values.Standard;
}
return(values);
}
