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93 lines
2.8 KiB
93 lines
2.8 KiB
// @preval
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// http://www.unicode.org/Public/emoji/5.0/emoji-test.txt
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// This file contains the compressed version of the emoji data from
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// both emoji_map.json and from emoji-mart's emojiIndex and data objects.
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// It's designed to be emitted in an array format to take up less space
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// over the wire.
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const { unicodeToFilename } = require('./unicode_to_filename');
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const { unicodeToUnifiedName } = require('./unicode_to_unified_name');
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const emojiMap = require('./emoji_map.json');
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const { emojiIndex } = require('emoji-mart');
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const { default: emojiMartData } = require('emoji-mart/dist/data');
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const excluded = ['®', '©', '™'];
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const skins = ['🏻', '🏼', '🏽', '🏾', '🏿'];
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const shortcodeMap = {};
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const shortCodesToEmojiData = {};
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const emojisWithoutShortCodes = [];
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Object.keys(emojiIndex.emojis).forEach(key => {
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shortcodeMap[emojiIndex.emojis[key].native] = emojiIndex.emojis[key].id;
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});
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const stripModifiers = unicode => {
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skins.forEach(tone => {
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unicode = unicode.replace(tone, '');
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});
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return unicode;
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};
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Object.keys(emojiMap).forEach(key => {
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if (excluded.includes(key)) {
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delete emojiMap[key];
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return;
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}
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const normalizedKey = stripModifiers(key);
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let shortcode = shortcodeMap[normalizedKey];
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if (!shortcode) {
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shortcode = shortcodeMap[normalizedKey + '\uFE0F'];
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}
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const filename = emojiMap[key];
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const filenameData = [key];
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if (unicodeToFilename(key) !== filename) {
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// filename can't be derived using unicodeToFilename
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filenameData.push(filename);
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}
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if (typeof shortcode === 'undefined') {
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emojisWithoutShortCodes.push(filenameData);
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} else {
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if (!Array.isArray(shortCodesToEmojiData[shortcode])) {
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shortCodesToEmojiData[shortcode] = [[]];
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}
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shortCodesToEmojiData[shortcode][0].push(filenameData);
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}
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});
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Object.keys(emojiIndex.emojis).forEach(key => {
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const { native } = emojiIndex.emojis[key];
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const { short_names, search, unified } = emojiMartData.emojis[key];
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if (short_names[0] !== key) {
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throw new Error('The compresser expects the first short_code to be the ' +
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'key. It may need to be rewritten if the emoji change such that this ' +
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'is no longer the case.');
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}
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short_names.splice(0, 1); // first short name can be inferred from the key
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const searchData = [native, short_names, search];
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if (unicodeToUnifiedName(native) !== unified) {
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// unified name can't be derived from unicodeToUnifiedName
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searchData.push(unified);
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}
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shortCodesToEmojiData[key].push(searchData);
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});
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// JSON.parse/stringify is to emulate what @preval is doing and avoid any
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// inconsistent behavior in dev mode
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module.exports = JSON.parse(JSON.stringify([
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shortCodesToEmojiData,
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emojiMartData.skins,
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emojiMartData.categories,
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emojiMartData.short_names,
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emojisWithoutShortCodes,
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]));
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