catstodon/app/javascript/mastodon/emojione_light.js
Eugen Rochko 510df0ac55 Fix emojify() by generating a mapping to existing Twemoji files (#5080)
A new rake task emojis:generate downloads a full list of valid
unicode sequences from unicode.org and checks it against existing
Twemoji files, finally generating a map from each sequence to the
existing file (e.g. when there's multiple ways an emoji can be
expressed). The map is dumped into app/javascript/mastodon/emoji_map.json

That file is loaded by emojione_light.js (now a misnomer) which
decorates it further with shortcodes taken from emoji-mart's index.
2017-09-25 18:36:33 +02:00

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JavaScript

// @preval
// http://www.unicode.org/Public/emoji/5.0/emoji-test.txt
const emojis = require('./emoji_map.json');
const { emojiIndex } = require('emoji-mart');
const excluded = ['®', '©', '™'];
const skins = ['🏻', '🏼', '🏽', '🏾', '🏿'];
const shortcodeMap = {};
Object.keys(emojiIndex.emojis).forEach(key => {
shortcodeMap[emojiIndex.emojis[key].native] = emojiIndex.emojis[key].id;
});
const stripModifiers = unicode => {
skins.forEach(tone => {
unicode = unicode.replace(tone, '');
});
return unicode;
};
Object.keys(emojis).forEach(key => {
if (excluded.includes(key)) {
delete emojis[key];
return;
}
const normalizedKey = stripModifiers(key);
let shortcode = shortcodeMap[normalizedKey];
if (!shortcode) {
shortcode = shortcodeMap[normalizedKey + '\uFE0F'];
}
emojis[key] = [emojis[key], shortcode];
});
module.exports.unicodeMapping = emojis;