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feat: added Traditional Chinese support

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This commit is contained in:
Xiaohan-Tian
2026-05-30 23:06:17 -07:00
parent 4488fe8ecd
commit 9180a274c5
15 changed files with 998 additions and 13 deletions
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src/i18n/locale.ts
+11 -3
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@@ -3,8 +3,11 @@ import type { LanguageSetting, ResolvedLocaleCode } from './types';
const CHINESE_LANGUAGE_PREFIX = 'zh';
const DEFAULT_LOCALE: ResolvedLocaleCode = 'en_us';
// BCP 47 subtags that indicate Traditional Chinese (Hant script or HK/TW/MO regions)
const TRADITIONAL_CHINESE_SUBTAGS = new Set(['hk', 'tw', 'mo', 'hant']);
export function normalizeLanguageSetting(value: unknown): LanguageSetting {
return value === 'zh_cn' || value === 'en_us' || value === 'auto' ? value : 'auto';
return value === 'zh_cn' || value === 'en_us' || value === 'zh_hk' || value === 'auto' ? value : 'auto';
}
export function getBrowserLocales(): string[] {
@@ -25,15 +28,20 @@ export function resolveLanguageSetting(
setting: LanguageSetting,
browserLocales: string[] = getBrowserLocales(),
): ResolvedLocaleCode {
if (setting === 'en_us' || setting === 'zh_cn') {
if (setting === 'en_us' || setting === 'zh_cn' || setting === 'zh_hk') {
return setting;
}
for (const locale of browserLocales) {
const normalizedLocale = locale.trim().toLowerCase();
if (normalizedLocale === CHINESE_LANGUAGE_PREFIX || normalizedLocale.startsWith(`${CHINESE_LANGUAGE_PREFIX}-`)) {
if (normalizedLocale === CHINESE_LANGUAGE_PREFIX) {
return 'zh_cn';
}
if (normalizedLocale.startsWith(`${CHINESE_LANGUAGE_PREFIX}-`)) {
const subtags = normalizedLocale.slice(CHINESE_LANGUAGE_PREFIX.length + 1).split('-');
const isTraditional = subtags.some((tag) => TRADITIONAL_CHINESE_SUBTAGS.has(tag));
return isTraditional ? 'zh_hk' : 'zh_cn';
}
}
return DEFAULT_LOCALE;