@shelchin/svelte-i18n/dist/kit/url-locale.js

The last Svelte i18n library you'll ever need. Type-safe, AI-powered, zero-config.

/**
 * URL locale utilities for handling locale codes in URLs
 */
import { isValidLanguageCode } from '../utils/language-search.js';
/**
 * Remove locale code from URL pathname if it exists
 * Automatically detects and removes any valid locale code from the pathname
 * Uses the comprehensive language list from language-search.ts
 * @param url - The URL to process
 * @returns New URL with locale code removed from pathname if found
 *
 * @example
 * deLocalizeUrl(new URL('https://example.com/zh/about'))
 * // Returns: new URL('https://example.com/about')
 *
 * deLocalizeUrl(new URL('https://example.com/en-US/products'))
 * // Returns: new URL('https://example.com/products')
 *
 * deLocalizeUrl(new URL('https://example.com/notlang/about'))
 * // Returns: new URL('https://example.com/notlang/about') (unchanged)
 */
export function deLocalizeUrl(url) {
    const newUrl = new URL(url.toString());
    const pathname = newUrl.pathname;
    // Split pathname into segments
    const segments = pathname.split('/').filter(Boolean);
    if (segments.length === 0) {
        return newUrl;
    }
    // Check if first segment is a valid locale code using the single source of truth
    const firstSegment = segments[0];
    if (isValidLanguageCode(firstSegment)) {
        // Remove the locale segment
        segments.shift();
        // Reconstruct pathname, ensuring at least a single slash
        newUrl.pathname = '/' + segments.join('/');
        // Handle empty pathname case
        if (newUrl.pathname === '') {
            newUrl.pathname = '/';
        }
    }
    return newUrl;
}