build-emoji-db.js

const fs = require("fs");
const languages = ["de", "it", "fr", "es", "en", "pt", "zh_Hant", "ko", "ja"];

const results = languages.map(lang => {
  const result = {};
  const txt = fs.readFileSync(`./synonyms/cldr-emoji-annotation-synonyms-${lang}.txt`, { encoding: "UTF-8"});
  txt.split("\n")
    .map(line => line.split("=>").map(token => token.trim()))
    .filter(([emoji, metadata]) => metadata !== undefined)
    .forEach(([emoji, metadata]) => {
      result[emoji] = metadata.split(",")[1].trim();
    });
  return result;
});

const result = {};
Object.keys(results[0]).forEach((emoji) => {
  result[emoji] = {};
  results.forEach((r, i) => {
    const lang = languages[i];
    result[emoji][lang] = r[emoji];
  });
});


console.log(JSON.stringify(result, null, 2));