mrjvs
2 years ago
15 changed files with 243 additions and 112 deletions
@ -1,14 +0,0 @@ |
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import { getTag } from "@sozialhelden/ietf-language-tags"; |
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export function getLanguageFromIETF(ietf: string): string | null { |
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const tag = getTag(ietf, true); |
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const lang = tag?.language?.Description?.[0] ?? null; |
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if (!lang) return null; |
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const region = tag?.region?.Description?.[0] ?? null; |
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let regionText = ""; |
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if (region) regionText = ` (${region})`; |
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return `${lang}${regionText}`; |
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} |
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@ -0,0 +1,188 @@ |
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import countryLanguages from "@ladjs/country-language"; |
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import { getTag } from "@sozialhelden/ietf-language-tags"; |
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const languageOrder = ["en", "hi", "fr", "de", "nl", "pt"]; |
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// mapping of language code to country code.
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// multiple mappings can exist, since languages are spoken in multiple countries.
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// This mapping purely exists to prioritize a country over another in languages.
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// iso639_1 -> iso3166 Alpha-2
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const countryPriority: Record<string, string> = { |
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en: "gb", |
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nl: "nl", |
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fr: "fr", |
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de: "de", |
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pt: "pt", |
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ar: "sa", |
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es: "es", |
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zh: "cn", |
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}; |
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// list of iso639_1 Alpha-2 codes used as default languages
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const defaultLanguageCodes: string[] = [ |
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"en-US", |
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"cs-CZ", |
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"de-DE", |
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"fr-FR", |
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"pt-BR", |
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"it-IT", |
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"nl-NL", |
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"pl-PL", |
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"tr-TR", |
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"vi-VN", |
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"zh-CN", |
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"he-IL", |
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"sv-SE", |
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"lv-LV", |
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"th-TH", |
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"ne-NP", |
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"ar-SA", |
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"es-ES", |
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"et-EE", |
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]; |
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export interface LocaleInfo { |
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name: string; |
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nativeName?: string; |
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code: string; |
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isRtl?: boolean; |
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} |
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interface LanguageObj { |
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countries: Array<{ |
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code_2: string; |
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code_3: string; |
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numCode: string; |
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}>; |
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direction: "RTL" | "LTR"; |
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name: string[]; |
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nativeName: string[]; |
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iso639_1: string; |
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} |
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const extraLanguages: Record<string, LocaleInfo> = { |
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pirate: { |
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code: "pirate", |
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name: "Pirate", |
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nativeName: "Pirate Tongue", |
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}, |
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minion: { |
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code: "minion", |
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name: "Minion", |
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nativeName: "Minionese", |
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}, |
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tok: { |
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code: "tok", |
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name: "Toki pona", |
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nativeName: "Toki pona", |
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}, |
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}; |
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function populateLanguageCode(language: string): string { |
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if (language.includes("-")) return language; |
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if (language.length !== 2) return language; |
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return ( |
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defaultLanguageCodes.find((v) => v.startsWith(`${language}-`)) ?? language |
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); |
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} |
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/** |
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* @param locale idk what kinda code this takes, anytihhng in ietf format I guess |
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* @returns pretty format for language, null if it no info can be found for language |
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*/ |
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export function getPrettyLanguageNameFromLocale(locale: string): string | null { |
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const tag = getTag(populateLanguageCode(locale), true); |
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const lang = tag?.language?.Description?.[0] ?? null; |
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if (!lang) return null; |
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const region = tag?.region?.Description?.[0] ?? null; |
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let regionText = ""; |
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if (region) regionText = ` (${region})`; |
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return `${lang}${regionText}`; |
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} |
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/** |
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* Sort locale codes by occurance, rest on alphabetical order |
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* @param langCodes list language codes to sort |
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* @returns sorted version of inputted list |
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*/ |
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export function sortLangCodes(langCodes: string[]) { |
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const languagesOrder = [...languageOrder].reverse(); // Reverse is neccesary, not sure why
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const results = langCodes.sort((a, b) => { |
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const langOrderA = languagesOrder.findIndex( |
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(v) => a.startsWith(`${v}-`) || a === v, |
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); |
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const langOrderB = languagesOrder.findIndex( |
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(v) => b.startsWith(`${v}-`) || b === v, |
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); |
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if (langOrderA !== -1 || langOrderB !== -1) return langOrderB - langOrderA; |
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return a.localeCompare(b); |
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}); |
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return results; |
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} |
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/** |
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* Get country code for locale |
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* @param locale input locale |
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* @returns country code or null |
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*/ |
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export function getCountryCodeForLocale(locale: string): string | null { |
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let output: LanguageObj | null = null as any as LanguageObj; |
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const tag = getTag(locale, true); |
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if (!tag?.language?.Subtag) return null; |
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// this function isnt async, so its garuanteed to work like this
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countryLanguages.getLanguage( |
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tag.language.Subtag, |
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(_err: string, lang: LanguageObj) => { |
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if (lang) output = lang; |
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}, |
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); |
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if (!output) return null; |
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if (output.countries.length === 0) return null; |
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const priority = countryPriority[output.iso639_1.toLowerCase()]; |
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if (priority) { |
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const priotizedCountry = output.countries.find( |
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(v) => v.code_2.toLowerCase() === priority, |
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); |
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if (priotizedCountry) return priotizedCountry.code_2.toLowerCase(); |
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} |
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return output.countries[0].code_2.toLowerCase(); |
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} |
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/** |
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* Get information for a specific local |
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* @param locale local code |
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* @returns locale object |
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*/ |
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export function getLocaleInfo(locale: string): LocaleInfo | null { |
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const realLocale = populateLanguageCode(locale); |
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const extraLang = extraLanguages[realLocale]; |
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if (extraLang) return extraLang; |
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const tag = getTag(realLocale, true); |
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if (!tag?.language?.Subtag) return null; |
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let output: LanguageObj | null = null as any as LanguageObj; |
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// this function isnt async, so its garuanteed to work like this
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countryLanguages.getLanguage( |
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tag.language.Subtag, |
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(_err: string, lang: LanguageObj) => { |
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if (lang) output = lang; |
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}, |
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); |
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if (!output) return null; |
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return { |
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code: tag.parts.langtag ?? realLocale, |
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isRtl: output.direction === "RTL", |
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name: |
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output.name[0] + |
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(tag.region?.Description ? ` (${tag.region.Description[0]})` : ""), |
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nativeName: output.nativeName[0] ?? undefined, |
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}; |
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} |
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@ -1,12 +0,0 @@ |
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export function sortLangCodes(langCodes: string[]) { |
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const languagesOrder = ["en", "hi", "fr", "de", "nl", "pt"].reverse(); // Reverse is neccesary, not sure why
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const results = langCodes.sort((a, b) => { |
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if (languagesOrder.indexOf(b) !== -1 || languagesOrder.indexOf(a) !== -1) |
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return languagesOrder.indexOf(b) - languagesOrder.indexOf(a); |
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return a.localeCompare(b); |
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}); |
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return results; |
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} |
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