translate-lines.ts

import { GTR } from "https://deno.land/x/[email protected]/mod.ts";

function zip<T, U>(a: T[], b: U[]): Array<[T, U]> {
  return a.map((k, i) => [k, b[i]]);
}

const fileArg = Deno.args[0];
if (!fileArg) {
  console.error("Please provide a file path");
  Deno.exit(1);
}

const lines = (await Deno.readTextFile(fileArg)).split("\n");

const alreadyTranslated = lines.filter((line) => line.includes("=>"));
const toTranslate = lines.filter((line) => !line.includes("=>"));

const gtr = new GTR();
const { trans } = await gtr.translate(toTranslate.join("\n"), {
  targetLang: "ja",
});

const result = zip(
  toTranslate,
  trans.split("\n").map((ja) => ja.trim())
).map(([en, ja]) => `${en} => ${ja}`);

const outLines = alreadyTranslated.concat(result);

await Deno.writeTextFile(fileArg, outLines.join("\n"));


// input.txt
// 努力
// 未来
// A
// bueatiful
// star

// deno run --unstable -A translate-lines.ts input.txt