hyphenation.ts
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hyphenation.ts
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	import hyphenopoly from "hyphenopoly";
	import { resolve } from "node:path";
	import { readFile } from "node:fs/promises";
	import { fileURLToPath } from "node:url";

	async function make_hyphenator(lang: string) {
	return hyphenopoly.config({
	require: [lang],
	sync: false,
	loader: async (file: string, module_path: URL) => {
	return readFile(
	resolve(fileURLToPath(module_path), `../patterns/${file}`)
	);
	},
	});
	}

	const hyphenators: Record<
	string,
	Promise<(text: string) => string> \| undefined
	> = {};

	export function get_hyphenator(
	lang: string
	): Promise<(text: string) => string> {
	const hyphenator = hyphenators[lang] \|\| make_hyphenator(lang);
	if (!hyphenators[lang]) {
	hyphenators[lang] = hyphenator;
	}
	return hyphenator;
	}