92 lines
2.5 KiB
TypeScript
92 lines
2.5 KiB
TypeScript
// Copyright: Ankitects Pty Ltd and contributors
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// License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
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import "intl-pluralrules";
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import { FluentBundle, FluentResource } from "@fluent/bundle";
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import { firstLanguage, setBundles } from "./bundles";
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import type { ModuleName } from "./modules";
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export function supportsVerticalText(): boolean {
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const firstLang = firstLanguage();
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return (
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firstLang.startsWith("ja") ||
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firstLang.startsWith("zh") ||
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firstLang.startsWith("ko")
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);
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}
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export function direction(): string {
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const firstLang = firstLanguage();
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if (
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firstLang.startsWith("ar") ||
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firstLang.startsWith("he") ||
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firstLang.startsWith("fa")
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) {
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return "rtl";
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} else {
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return "ltr";
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}
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}
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export function weekdayLabel(n: number): string {
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const firstLang = firstLanguage();
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const now = new Date();
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const daysFromToday = -now.getDay() + n;
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const desiredDay = new Date(now.getTime() + daysFromToday * 86_400_000);
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return desiredDay.toLocaleDateString(firstLang, {
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weekday: "narrow",
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});
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}
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let langs: string[] = [];
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export function toLocaleString(
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date: Date,
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options?: Intl.DateTimeFormatOptions,
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): string {
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return date.toLocaleDateString(langs, options);
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}
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export function localeCompare(
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first: string,
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second: string,
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options?: Intl.CollatorOptions,
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): number {
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return first.localeCompare(second, langs, options);
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}
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/// Treat text like HTML, merging multiple spaces and converting
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/// newlines to spaces.
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export function withCollapsedWhitespace(s: string): string {
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return s.replace(/\s+/g, " ");
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}
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export function withoutUnicodeIsolation(s: string): string {
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return s.replace(/[\u2068-\u2069]+/g, "");
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}
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export async function setupI18n(args: { modules: ModuleName[] }): Promise<void> {
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const resp = await fetch("/_anki/i18nResources", {
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method: "POST",
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body: JSON.stringify(args),
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});
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if (!resp.ok) {
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throw Error(`unexpected reply: ${resp.statusText}`);
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}
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const json = await resp.json();
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const newBundles: FluentBundle[] = [];
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for (const i in json.resources) {
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const text = json.resources[i];
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const lang = json.langs[i];
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const bundle = new FluentBundle([lang, "en-US"]);
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const resource = new FluentResource(text);
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bundle.addResource(resource);
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newBundles.push(bundle);
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}
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setBundles(newBundles);
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langs = json.langs;
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}
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