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CultureInfoCache.cs
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CultureInfoCache.cs
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System;
using System.Collections.Generic;
using System.Globalization;
#if NET5_0_OR_GREATER
using System.Linq;
using Microsoft.Build.Framework;
#endif
using Microsoft.Build.Shared;
#nullable disable
namespace Microsoft.Build.Tasks
{
/// <summary>
/// Provides read-only cached instances of <see cref="CultureInfo"/>.
/// <remarks>
/// Original source:
/// https://raw.githubusercontent.com/aspnet/Localization/dev/src/Microsoft.Framework.Globalization.CultureInfoCache/CultureInfoCache.cs
/// </remarks>
/// </summary>
internal static class CultureInfoCache
{
private static readonly Lazy<HashSet<string>> ValidCultureNames = new Lazy<HashSet<string>>(() => InitializeValidCultureNames());
// https://docs.microsoft.com/en-gb/windows/desktop/Intl/using-pseudo-locales-for-localization-testing
// These pseudo-locales are available in versions of Windows from Vista and later.
// However, from Windows 10, version 1803, they are not returned when enumerating the
// installed cultures, even if the registry keys are set. Therefore, add them to the list manually.
private static readonly string[] pseudoLocales = new[] { "qps-ploc", "qps-ploca", "qps-plocm", "qps-Latn-x-sh" };
private static HashSet<string> InitializeValidCultureNames()
{
#if !FEATURE_CULTUREINFO_GETCULTURES
if (!AssemblyUtilities.CultureInfoHasGetCultures())
{
return HardcodedCultureNames;
}
#endif
HashSet<string> validCultureNames = new(StringComparer.OrdinalIgnoreCase);
foreach (CultureInfo cultureName in AssemblyUtilities.GetAllCultures())
{
validCultureNames.Add(cultureName.Name);
}
// Account for pseudo-locales (see above)
foreach (string pseudoLocale in pseudoLocales)
{
validCultureNames.Add(pseudoLocale);
}
return validCultureNames;
}
/// <summary>
/// Determine if a culture string represents a valid <see cref="CultureInfo"/> instance.
/// </summary>
/// <param name="name">The culture name.</param>
/// <returns>True if the culture is determined to be valid.</returns>
internal static bool IsValidCultureString(string name)
{
#if NET5_0_OR_GREATER
if (ChangeWaves.AreFeaturesEnabled(ChangeWaves.Wave17_4))
{
try
{
// GetCultureInfo throws if the culture doesn't exist
CultureInfo.GetCultureInfo(name, predefinedOnly: true);
return true;
}
catch
{
// Second attempt: try pseudolocales (see above)
return pseudoLocales.Contains(name, StringComparer.OrdinalIgnoreCase);
}
}
#endif
return ValidCultureNames.Value.Contains(name);
}
#if !FEATURE_CULTUREINFO_GETCULTURES
// Copied from https://github.com/aspnet/Localization/blob/5e1fb16071affd15f15b9c732833f3ae2ac46e10/src/Microsoft.Framework.Globalization.CultureInfoCache/CultureInfoList.cs
// Regenerated using the tool (removed by https://github.com/aspnet/Localization/pull/130)
// * Removed the empty string from the list
// * Any cultures not present when regenerated were retained
// * Added the Windows pseudo-locales
private static readonly HashSet<string> HardcodedCultureNames = new HashSet<string>(StringComparer.OrdinalIgnoreCase)
{
"aa",
"aa-DJ",
"aa-ER",
"aa-ET",
"af",
"af-NA",
"af-ZA",
"agq",
"agq-CM",
"ak",
"ak-GH",
"am",
"am-ET",
"ar",
"ar-001",
"ar-AE",
"ar-BH",
"ar-DJ",
"ar-DZ",
"ar-EG",
"ar-ER",
"ar-IL",
"ar-IQ",
"ar-JO",
"ar-KM",
"ar-KW",
"ar-LB",
"ar-LY",
"ar-MA",
"ar-MR",
"ar-OM",
"ar-PS",
"ar-QA",
"ar-SA",
"ar-SD",
"ar-SO",
"ar-SS",
"ar-SY",
"ar-TD",
"ar-TN",
"ar-YE",
"arn",
"arn-CL",
"as",
"as-IN",
"asa",
"asa-TZ",
"ast",
"ast-ES",
"az",
"az-Cyrl",
"az-Cyrl-AZ",
"az-Latn",
"az-Latn-AZ",
"ba",
"ba-RU",
"bas",
"bas-CM",
"be",
"be-BY",
"bem",
"bem-ZM",
"bez",
"bez-TZ",
"bg",
"bg-BG",
"bin",
"bin-NG",
"bm",
"bm-Latn",
"bm-Latn-ML",
"bn",
"bn-BD",
"bn-IN",
"bo",
"bo-CN",
"bo-IN",
"br",
"br-FR",
"brx",
"brx-IN",
"bs",
"bs-Cyrl",
"bs-Cyrl-BA",
"bs-Latn",
"bs-Latn-BA",
"byn",
"byn-ER",
"ca",
"ca-AD",
"ca-ES",
"ca-ES-valencia",
"ca-FR",
"ca-IT",
"ce",
"ce-RU",
"cgg",
"cgg-UG",
"chr",
"chr-Cher",
"chr-Cher-US",
"co",
"co-FR",
"cs",
"cs-CZ",
"cu",
"cu-RU",
"cy",
"cy-GB",
"da",
"da-DK",
"da-GL",
"dav",
"dav-KE",
"de",
"de-AT",
"de-BE",
"de-CH",
"de-DE",
"de-IT",
"de-LI",
"de-LU",
"dje",
"dje-NE",
"dsb",
"dsb-DE",
"dua",
"dua-CM",
"dv",
"dv-MV",
"dyo",
"dyo-SN",
"dz",
"dz-BT",
"ebu",
"ebu-KE",
"ee",
"ee-GH",
"ee-TG",
"el",
"el-CY",
"el-GR",
"en",
"en-001",
"en-029",
"en-150",
"en-AG",
"en-AI",
"en-AS",
"en-AT",
"en-AU",
"en-BB",
"en-BE",
"en-BI",
"en-BM",
"en-BS",
"en-BW",
"en-BZ",
"en-CA",
"en-CC",
"en-CH",
"en-CK",
"en-CM",
"en-CX",
"en-CY",
"en-DE",
"en-DK",
"en-DM",
"en-ER",
"en-FI",
"en-FJ",
"en-FK",
"en-FM",
"en-GB",
"en-GD",
"en-GG",
"en-GH",
"en-GI",
"en-GM",
"en-GU",
"en-GY",
"en-HK",
"en-ID",
"en-IE",
"en-IL",
"en-IM",
"en-IN",
"en-IO",
"en-JE",
"en-JM",
"en-KE",
"en-KI",
"en-KN",
"en-KY",
"en-LC",
"en-LR",
"en-LS",
"en-MG",
"en-MH",
"en-MO",
"en-MP",
"en-MS",
"en-MT",
"en-MU",
"en-MW",
"en-MY",
"en-NA",
"en-NF",
"en-NG",
"en-NL",
"en-NR",
"en-NU",
"en-NZ",
"en-PG",
"en-PH",
"en-PK",
"en-PN",
"en-PR",
"en-PW",
"en-RW",
"en-SB",
"en-SC",
"en-SD",
"en-SE",
"en-SG",
"en-SH",
"en-SI",
"en-SL",
"en-SS",
"en-SX",
"en-SZ",
"en-TC",
"en-TK",
"en-TO",
"en-TT",
"en-TV",
"en-TZ",
"en-UG",
"en-UM",
"en-US",
"en-VC",
"en-VG",
"en-VI",
"en-VU",
"en-WS",
"en-ZA",
"en-ZM",
"en-ZW",
"eo",
"eo-001",
"es",
"es-419",
"es-AR",
"es-BO",
"es-BR",
"es-BZ",
"es-CL",
"es-CO",
"es-CR",
"es-CU",
"es-DO",
"es-EC",
"es-ES",
"es-GQ",
"es-GT",
"es-HN",
"es-MX",
"es-NI",
"es-PA",
"es-PE",
"es-PH",
"es-PR",
"es-PY",
"es-SV",
"es-US",
"es-UY",
"es-VE",
"et",
"et-EE",
"eu",
"eu-ES",
"ewo",
"ewo-CM",
"fa",
"fa-IR",
"ff",
"ff-CM",
"ff-GN",
"ff-Latn",
"ff-Latn-SN",
"ff-MR",
"ff-NG",
"fi",
"fi-FI",
"fil",
"fil-PH",
"fo",
"fo-DK",
"fo-FO",
"fr",
"fr-029",
"fr-BE",
"fr-BF",
"fr-BI",
"fr-BJ",
"fr-BL",
"fr-CA",
"fr-CD",
"fr-CF",
"fr-CG",
"fr-CH",
"fr-CI",
"fr-CM",
"fr-DJ",
"fr-DZ",
"fr-FR",
"fr-GA",
"fr-GF",
"fr-GN",
"fr-GP",
"fr-GQ",
"fr-HT",
"fr-KM",
"fr-LU",
"fr-MA",
"fr-MC",
"fr-MF",
"fr-MG",
"fr-ML",
"fr-MQ",
"fr-MR",
"fr-MU",
"fr-NC",
"fr-NE",
"fr-PF",
"fr-PM",
"fr-RE",
"fr-RW",
"fr-SC",
"fr-SN",
"fr-SY",
"fr-TD",
"fr-TG",
"fr-TN",
"fr-VU",
"fr-WF",
"fr-YT",
"fur",
"fur-IT",
"fy",
"fy-NL",
"ga",
"ga-IE",
"gd",
"gd-GB",
"gl",
"gl-ES",
"gn",
"gn-PY",
"gsw",
"gsw-CH",
"gsw-FR",
"gsw-LI",
"gu",
"gu-IN",
"guz",
"guz-KE",
"gv",
"gv-IM",
"ha",
"ha-Latn",
"ha-Latn-GH",
"ha-Latn-NE",
"ha-Latn-NG",
"haw",
"haw-US",
"he",
"he-IL",
"hi",
"hi-IN",
"hr",
"hr-BA",
"hr-HR",
"hsb",
"hsb-DE",
"hu",
"hu-HU",
"hy",
"hy-AM",
"ia",
"ia-001",
"ia-FR",
"ibb",
"ibb-NG",
"id",
"id-ID",
"ig",
"ig-NG",
"ii",
"ii-CN",
"is",
"is-IS",
"it",
"it-CH",
"it-IT",
"it-SM",
"it-VA",
"iu",
"iu-Cans",
"iu-Cans-CA",
"iu-Latn",
"iu-Latn-CA",
"ja",
"ja-JP",
"jgo",
"jgo-CM",
"jmc",
"jmc-TZ",
"jv",
"jv-Java",
"jv-Java-ID",
"jv-Latn",
"jv-Latn-ID",
"ka",
"ka-GE",
"kab",
"kab-DZ",
"kam",
"kam-KE",
"kde",
"kde-TZ",
"kea",
"kea-CV",
"khq",
"khq-ML",
"ki",
"ki-KE",
"kk",
"kk-KZ",
"kkj",
"kkj-CM",
"kl",
"kl-GL",
"kln",
"kln-KE",
"km",
"km-KH",
"kn",
"kn-IN",
"ko",
"ko-KP",
"ko-KR",
"kok",
"kok-IN",
"kr",
"kr-NG",
"ks",
"ks-Arab",
"ks-Arab-IN",
"ks-Deva",
"ks-Deva-IN",
"ksb",
"ksb-TZ",
"ksf",
"ksf-CM",
"ksh",
"ksh-DE",
"ku",
"ku-Arab",
"ku-Arab-IQ",
"ku-Arab-IR",
"kw",
"kw-GB",
"ky",
"ky-KG",
"la",
"la-001",
"lag",
"lag-TZ",
"lb",
"lb-LU",
"lg",
"lg-UG",
"lkt",
"lkt-US",
"ln",
"ln-AO",
"ln-CD",
"ln-CF",
"ln-CG",
"lo",
"lo-LA",
"lrc",
"lrc-IQ",
"lrc-IR",
"lt",
"lt-LT",
"lu",
"lu-CD",
"luo",
"luo-KE",
"luy",
"luy-KE",
"lv",
"lv-LV",
"mas",
"mas-KE",
"mas-TZ",
"mer",
"mer-KE",
"mfe",
"mfe-MU",
"mg",
"mg-MG",
"mgh",
"mgh-MZ",
"mgo",
"mgo-CM",
"mi",
"mi-NZ",
"mk",
"mk-MK",
"ml",
"ml-IN",
"mn",
"mn-Cyrl",
"mn-MN",
"mn-Mong",
"mn-Mong-CN",
"mn-Mong-MN",
"mni",
"mni-IN",
"moh",
"moh-CA",
"mr",
"mr-IN",
"ms",
"ms-BN",
"ms-MY",
"ms-SG",
"mt",
"mt-MT",
"mua",
"mua-CM",
"my",
"my-MM",
"mzn",
"mzn-IR",
"naq",
"naq-NA",
"nb",
"nb-NO",
"nb-SJ",
"nd",
"nd-ZW",
"nds",
"nds-DE",
"nds-NL",
"ne",
"ne-IN",
"ne-NP",
"nl",
"nl-AW",
"nl-BE",
"nl-BQ",
"nl-CW",
"nl-NL",
"nl-SR",
"nl-SX",
"nmg",
"nmg-CM",
"nn",
"nn-NO",
"nnh",
"nnh-CM",
"no",
"nqo",
"nqo-GN",
"nr",
"nr-ZA",
"nso",
"nso-ZA",
"nus",
"nus-SS",
"nyn",
"nyn-UG",
"oc",
"oc-FR",
"om",
"om-ET",
"om-KE",
"or",
"or-IN",
"os",
"os-GE",
"os-RU",
"pa",
"pa-Arab",
"pa-Arab-PK",
"pa-Guru",
"pa-IN",
"pap",
"pap-029",
"pl",
"pl-PL",
"prg",
"prg-001",
"prs",
"prs-AF",
"ps",
"ps-AF",
"pt",
"pt-AO",
"pt-BR",
"pt-CH",
"pt-CV",
"pt-GQ",
"pt-GW",
"pt-LU",
"pt-MO",
"pt-MZ",
"pt-PT",
"pt-ST",
"pt-TL",
"qps-ploc",
"qps-ploca",
"qps-plocm",
"qps-Latn-x-sh",
"quc",
"quc-Latn",
"quc-Latn-GT",
"qut",
"qut-GT",
"quz",
"quz-BO",
"quz-EC",
"quz-PE",
"rm",
"rm-CH",
"rn",
"rn-BI",
"ro",
"ro-MD",
"ro-RO",
"rof",
"rof-TZ",
"ru",
"ru-BY",
"ru-KG",
"ru-KZ",
"ru-MD",
"ru-RU",
"ru-UA",
"rw",
"rw-RW",
"rwk",
"rwk-TZ",
"sa",
"sa-IN",
"sah",
"sah-RU",
"saq",
"saq-KE",
"sbp",
"sbp-TZ",
"sd",
"sd-Arab",
"sd-Arab-PK",
"sd-Deva",
"sd-Deva-IN",
"se",
"se-FI",
"se-NO",
"se-SE",
"seh",
"seh-MZ",
"ses",
"ses-ML",
"sg",
"sg-CF",
"shi",
"shi-Latn",
"shi-Latn-MA",
"shi-Tfng",
"shi-Tfng-MA",
"si",
"si-LK",
"sk",
"sk-SK",
"sl",
"sl-SI",
"sma",
"sma-NO",
"sma-SE",
"smj",
"smj-NO",
"smj-SE",
"smn",
"smn-FI",
"sms",
"sms-FI",
"sn",
"sn-Latn",
"sn-Latn-ZW",
"so",
"so-DJ",
"so-ET",
"so-KE",
"so-SO",
"sq",
"sq-AL",
"sq-MK",
"sq-XK",
"sr",
"sr-Cyrl",
"sr-Cyrl-BA",
"sr-Cyrl-CS",
"sr-Cyrl-ME",
"sr-Cyrl-RS",
"sr-Cyrl-XK",
"sr-Latn",
"sr-Latn-BA",
"sr-Latn-CS",
"sr-Latn-ME",
"sr-Latn-RS",
"sr-Latn-XK",
"ss",
"ss-SZ",
"ss-ZA",
"ssy",
"ssy-ER",
"st",
"st-LS",
"st-ZA",
"sv",
"sv-AX",
"sv-FI",
"sv-SE",
"sw",
"sw-CD",
"sw-KE",
"sw-TZ",
"sw-UG",
"syr",
"syr-SY",
"ta",
"ta-IN",
"ta-LK",
"ta-MY",
"ta-SG",
"te",
"te-IN",
"teo",
"teo-KE",
"teo-UG",
"tg",
"tg-Cyrl",
"tg-Cyrl-TJ",
"th",
"th-TH",
"ti",
"ti-ER",
"ti-ET",
"tig",
"tig-ER",
"tk",
"tk-TM",
"tn",
"tn-BW",
"tn-ZA",
"to",
"to-TO",
"tr",
"tr-CY",
"tr-TR",
"ts",
"ts-ZA",
"tt",
"tt-RU",
"twq",
"twq-NE",
"tzm",
"tzm-Arab",
"tzm-Arab-MA",
"tzm-Latn",
"tzm-Latn-DZ",
"tzm-Latn-MA",
"tzm-Tfng",
"tzm-Tfng-MA",
"ug",
"ug-CN",
"uk",
"uk-UA",
"ur",
"ur-IN",
"ur-PK",
"uz",
"uz-Arab",
"uz-Arab-AF",
"uz-Cyrl",
"uz-Cyrl-UZ",
"uz-Latn",
"uz-Latn-UZ",
"vai",
"vai-Latn",
"vai-Latn-LR",
"vai-Vaii",
"vai-Vaii-LR",
"ve",
"ve-ZA",
"vi",
"vi-VN",
"vo",
"vo-001",
"vun",
"vun-TZ",
"wae",
"wae-CH",
"wal",
"wal-ET",
"wo",
"wo-SN",
"xh",
"xh-ZA",
"xog",
"xog-UG",
"yav",
"yav-CM",
"yi",
"yi-001",
"yo",
"yo-BJ",
"yo-NG",
"zgh",
"zgh-Tfng",
"zgh-Tfng-MA",
"zh",
"zh-CN",
"zh-Hans",
"zh-Hans-HK",
"zh-Hans-MO",
"zh-Hant",
"zh-HK",
"zh-MO",
"zh-SG",
"zh-TW",
"zu",
"zu-ZA",
"zh-CHS",
"zh-CHT"
};
#endif
}
}