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elk/utils/language.ts

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2023-01-15 21:23:47 +09:00
export function matchLanguages(languages: string[], acceptLanguages: readonly string[]): string | null {
{
// const lang = acceptLanguages.map(userLang => languages.find(lang => lang.startsWith(userLang))).filter(v => !!v)[0]
// TODO: Support es-419, remove this code if we include spanish country variants
const lang = acceptLanguages.map(userLang => languages.find((currentLang) => {
if (currentLang === userLang)
return currentLang
// Edge browser: case for ca-valencia
if (currentLang === 'ca-valencia' && userLang === 'ca-Es-VALENCIA')
return currentLang
if (userLang.startsWith('es-') && userLang !== 'es-ES' && currentLang === 'es-419')
return currentLang
return currentLang.startsWith(userLang) ? currentLang : undefined
})).filter(v => !!v)?.[0]
if (lang)
return lang
}
const lang = acceptLanguages.map((userLang) => {
userLang = userLang.split('-')[0]!
return languages.find(lang => lang.startsWith(userLang))
}).filter(v => !!v)[0]
if (lang)
return lang
return null
}