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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,8 +1,30 @@ | ||
| import { NextRouter, SingletonRouter } from 'next/router' | ||
| import { UrlObject, parse as parseUrl } from 'url' | ||
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| import { getNtrData } from './ntrData' | ||
|
|
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| export const getLocale = ( | ||
| { locale, defaultLocale, locales }: NextRouter | SingletonRouter, | ||
| explicitLocale?: string | false, | ||
| ) => explicitLocale || locale || defaultLocale || locales?.[0] || getNtrData().defaultLocale || getNtrData().locales[0] | ||
| export const getLocale = ({ | ||
| router, | ||
| locale: explicitLocale, | ||
| url, | ||
| }: { | ||
| router?: NextRouter | SingletonRouter | ||
| locale?: string | false | ||
| url?: string | UrlObject | URL | ||
| } = {}) => { | ||
| if (explicitLocale) { | ||
| return explicitLocale | ||
| } | ||
| const { i18n } = getNtrData() | ||
|
|
||
| // explicitLocale === false if opted-out of automatically handling the locale prefixing | ||
| // Cf. https://nextjs.org/docs/advanced-features/i18n-routing#transition-between-locales | ||
| if (explicitLocale === false && url) { | ||
| const { pathname } = typeof url === 'string' ? parseUrl(url) : url | ||
| const localeSegment = pathname?.split('/')[1] | ||
| if (localeSegment && i18n.locales.includes(localeSegment)) { | ||
| return localeSegment | ||
| } | ||
| } | ||
| return router?.locale || router?.defaultLocale || i18n.defaultLocale || router?.locales?.[0] || i18n.locales[0] | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,27 +1,67 @@ | ||
| import { isDefaultLocale } from '../shared/isDefaultLocale' | ||
| import { getNtrData } from './ntrData' | ||
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|
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| export function removeLangPrefix(pathname: string, toArray?: false, locale?: string): string | ||
| export function removeLangPrefix(pathname: string, toArray: true, locale?: string): string[] | ||
| export function removeLangPrefix(pathname: string, toArray?: boolean, givenLocale?: string): string | string[] { | ||
| const pathParts = pathname.split('/').filter(Boolean) | ||
| const { routesTree, defaultLocale, locales } = getNtrData() | ||
| /** | ||
| * Remove both the lang prefix and the root prefix from a pathname | ||
| * | ||
| * (The root prefix is a prefix that can be added for a locale between the locale prefix | ||
| * and the rest of the pathname. It is defined in the root _routes.json file for the "/" key.) | ||
| */ | ||
| export function removeLangPrefix( | ||
| pathname: string, | ||
| /** | ||
| * If locale is explicitely given, removeLangPrefix will use it, | ||
| * it it is not, removeLangPrefix will try to deduce the locale from the pathname | ||
| */ | ||
| locale?: string, | ||
| ): string { | ||
| const { | ||
| routesTree, | ||
| i18n, | ||
| i18n: { locales }, | ||
| } = getNtrData() | ||
| let lang = locale | ||
| let root = '' | ||
|
|
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| const getLangRoot = (lang: string) => routesTree.paths[lang] || routesTree.paths.default | ||
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| const defaultLocaleRoot = defaultLocale && getLangRoot(defaultLocale) | ||
| const hasLangPrefix = givenLocale ? pathParts[0] === givenLocale : locales.includes(pathParts[0]) | ||
| const hasDefaultLocalePrefix = !hasLangPrefix && !!defaultLocaleRoot && pathParts[0] === defaultLocaleRoot | ||
| const hasGivenLocalePrefix = givenLocale ? pathParts[hasLangPrefix ? 1 : 0] === getLangRoot(givenLocale) : false | ||
| if (locale) { | ||
| root = getLangRoot(locale) | ||
| } else { | ||
| const prefixLocale = locales.find((locale) => new RegExp(`\\/${locale}(\\/|$)`).test(pathname)) | ||
| if (prefixLocale) { | ||
| lang = prefixLocale | ||
| root = getLangRoot(prefixLocale) | ||
| } else { | ||
| for (const l of locales) { | ||
| if (isDefaultLocale(l, i18n)) { | ||
| lang = l | ||
| root = getLangRoot(l) | ||
| break | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| let remainingPathname: string | undefined = undefined | ||
|
|
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| if (!lang) { | ||
| return pathname | ||
| } | ||
|
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| const fullPrefix = `/${lang}/${root}` | ||
|
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| if (!hasLangPrefix && !hasDefaultLocalePrefix && !hasGivenLocalePrefix) { | ||
| return toArray ? pathParts : pathname | ||
| if (root && pathname.startsWith(fullPrefix)) { | ||
| remainingPathname = pathname.slice(fullPrefix.length) | ||
| } else if (root && pathname.startsWith(`/${root}`)) { | ||
| remainingPathname = pathname.slice(root.length + 1) | ||
| } else if (pathname.startsWith(`/${lang}`)) { | ||
| remainingPathname = pathname.slice(lang.length + 1) | ||
| } | ||
|
|
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| const locale = givenLocale || hasLangPrefix ? pathParts[0] : defaultLocale | ||
| const localeRootParts = (locale || hasGivenLocalePrefix) && getLangRoot(locale)?.split('/') | ||
| const nbPathPartsToRemove = | ||
| (hasLangPrefix ? 1 : 0) + | ||
| (localeRootParts && (!hasLangPrefix || pathParts[1] === localeRootParts[0]) ? localeRootParts.length : 0) | ||
| if (typeof remainingPathname === 'string' && /^($|\/)/.test(remainingPathname)) { | ||
| return remainingPathname | ||
| } | ||
|
|
||
| return toArray ? pathParts.slice(nbPathPartsToRemove) : `/${pathParts.slice(nbPathPartsToRemove).join('/')}` | ||
| return pathname | ||
| } |
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