| 1 | {"version":3,"sources":["../source/locale.js"],"names":["chooseLocale","locales","isLocaleDataAvailable","locale","parts","split","length","pop","join","Error","intlDateTimeFormatSupportedLocale","intlDateTimeFormatSupported","Intl","DateTimeFormat","supportedLocalesOf","isIntlAvailable"],"mappings":";;AAAA;;;;;;;;;;;;;;AAcA,eAAe,SAASA,YAAT,CAAsBC,OAAtB,EAA+BC,qBAA/B,EAAsD;AACpE;AACA;AACA;AACA,uBAAmBD,OAAnB,kHAA4B;AAAA;;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AAAA,QAAnBE,MAAmB;;AAC3B,QAAID,qBAAqB,CAACC,MAAD,CAAzB,EAAmC;AAClC,aAAOA,MAAP;AACA;;AACD,QAAMC,KAAK,GAAGD,MAAM,CAACE,KAAP,CAAa,GAAb,CAAd;;AACA,WAAOD,KAAK,CAACE,MAAN,GAAe,CAAtB,EAAyB;AACxBF,MAAAA,KAAK,CAACG,GAAN;AACAJ,MAAAA,MAAM,GAAGC,KAAK,CAACI,IAAN,CAAW,GAAX,CAAT;;AACA,UAAIN,qBAAqB,CAACC,MAAD,CAAzB,EAAmC;AAClC,eAAOA,MAAP;AACA;AACD;AACD;;AAED,QAAM,IAAIM,KAAJ,sEAAwER,OAAO,CAACO,IAAR,CAAa,IAAb,CAAxE,EAAN;AACA;AAED;;;;;;;AAMA,OAAO,SAASE,iCAAT,CAA2CT,OAA3C,EAAoD;AAC1D;AACA,MAAIU,2BAA2B,EAA/B,EAAmC;AAClC,WAAOC,IAAI,CAACC,cAAL,CAAoBC,kBAApB,CAAuCb,OAAvC,EAAgD,CAAhD,CAAP;AACA;AACD;AAED;;;;;AAIA,OAAO,SAASU,2BAAT,GAAuC;AAC7C;AACA;;AACA;AACA,MAAMI,eAAe,GAAG,QAAOH,IAAP,yCAAOA,IAAP,OAAgB,QAAxC;AACA,SAAOG,eAAe,IAAI,OAAOH,IAAI,CAACC,cAAZ,KAA+B,UAAzD;AACA","sourcesContent":["/**\r\n * Chooses the most appropriate locale\r\n * (one of the registered ones)\r\n * based on the list of preferred `locales` supplied by the user.\r\n *\r\n * @param {string[]} locales - the list of preferable locales (in [IETF format](https://en.wikipedia.org/wiki/IETF_language_tag)).\r\n * @param {Function} isLocaleDataAvailable - tests if a locale is available.\r\n *\r\n * @returns {string} The most suitable locale.\r\n *\r\n * @example\r\n * // Returns 'en'\r\n * chooseLocale(['en-US'], undefined, (locale) => locale === 'ru' || locale === 'en')\r\n */\r\nexport default function chooseLocale(locales, isLocaleDataAvailable) {\r\n\t// This is not an intelligent algorithm,\r\n\t// but it will do for this library's case.\r\n\t// `sr-Cyrl-BA` -> `sr-Cyrl` -> `sr`.\r\n\tfor (let locale of locales) {\r\n\t\tif (isLocaleDataAvailable(locale)) {\r\n\t\t\treturn locale\r\n\t\t}\r\n\t\tconst parts = locale.split('-')\r\n\t\twhile (parts.length > 1) {\r\n\t\t\tparts.pop()\r\n\t\t\tlocale = parts.join('-')\r\n\t\t\tif (isLocaleDataAvailable(locale)) {\r\n\t\t\t\treturn locale\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n\r\n\tthrow new Error(`No locale data has been registered for any of the locales: ${locales.join(', ')}`)\r\n}\r\n\r\n/**\r\n * Whether can use `Intl.DateTimeFormat` for these `locales`.\r\n * Returns the first suitable one.\r\n * @param {(string|string[])} locales\r\n * @return {?string} The first locale that can be used.\r\n */\r\nexport function intlDateTimeFormatSupportedLocale(locales) {\r\n\t/* istanbul ignore else */\r\n\tif (intlDateTimeFormatSupported()) {\r\n\t\treturn Intl.DateTimeFormat.supportedLocalesOf(locales)[0]\r\n\t}\r\n}\r\n\r\n/**\r\n * Whether can use `Intl.DateTimeFormat`.\r\n * @return {boolean}\r\n */\r\nexport function intlDateTimeFormatSupported() {\r\n\t// Babel transforms `typeof` into some \"branches\"\r\n\t// so istanbul will show this as \"branch not covered\".\r\n\t/* istanbul ignore next */\r\n\tconst isIntlAvailable = typeof Intl === 'object'\r\n\treturn isIntlAvailable && typeof Intl.DateTimeFormat === 'function'\r\n}\r\n"],"file":"locale.js"} |