make number of comparison in emojify() fewer (#4500)
fix style "©"削除処理をemojione_lightに移動pull/127/head
parent
9ba7d526a0
commit
09e86ef90b
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@ -3,34 +3,28 @@ import Trie from 'substring-trie';
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const trie = new Trie(Object.keys(unicodeMapping));
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const trie = new Trie(Object.keys(unicodeMapping));
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const excluded = ['™', '©', '®'];
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const emojify = str => {
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let rtn = '';
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function emojify(str) {
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for (;;) {
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// This walks through the string from start to end, ignoring any tags (<p>, <br>, etc.)
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let match, i = 0;
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// and replacing valid unicode strings
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while (i < str.length && str[i] !== '<' && !(match = trie.search(str.slice(i)))) {
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// that _aren't_ within tags with an <img> version.
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i += str.codePointAt(i) < 65536 ? 1 : 2;
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// The goal is to be the same as an emojione.regUnicode replacement, but faster.
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}
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let i = -1;
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if (i === str.length)
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let insideTag = false;
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break;
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let match;
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else if (str[i] === '<') {
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while (++i < str.length) {
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let tagend = str.indexOf('>', i + 1) + 1;
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const char = str.charAt(i);
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if (!tagend)
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if (insideTag && char === '>') {
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break;
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insideTag = false;
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rtn += str.slice(0, tagend);
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} else if (char === '<') {
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str = str.slice(tagend);
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insideTag = true;
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} else {
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} else if (!insideTag && (match = trie.search(str.substring(i)))) {
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const [filename, shortCode] = unicodeMapping[match];
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const unicodeStr = match;
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rtn += str.slice(0, i) + `<img draggable="false" class="emojione" alt="${match}" title=":${shortCode}:" src="/emoji/${filename}.svg" />`;
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if (unicodeStr in unicodeMapping && excluded.indexOf(unicodeStr) === -1) {
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str = str.slice(i + match.length);
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const [filename, shortCode] = unicodeMapping[unicodeStr];
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const alt = unicodeStr;
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const replacement = `<img draggable="false" class="emojione" alt="${alt}" title=":${shortCode}:" src="/emoji/${filename}.svg" />`;
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str = str.substring(0, i) + replacement + str.substring(i + unicodeStr.length);
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i += (replacement.length - unicodeStr.length); // jump ahead the length we've added to the string
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}
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}
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}
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}
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}
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return rtn + str;
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return str;
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};
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}
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export default emojify;
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export default emojify;
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@ -4,8 +4,10 @@
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const emojione = require('emojione');
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const emojione = require('emojione');
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const mappedUnicode = emojione.mapUnicodeToShort();
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const mappedUnicode = emojione.mapUnicodeToShort();
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const excluded = ['®', '©', '™'];
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module.exports.unicodeMapping = Object.keys(emojione.jsEscapeMap)
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module.exports.unicodeMapping = Object.keys(emojione.jsEscapeMap)
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.filter(c => !excluded.includes(c))
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.map(unicodeStr => [unicodeStr, mappedUnicode[emojione.jsEscapeMap[unicodeStr]]])
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.map(unicodeStr => [unicodeStr, mappedUnicode[emojione.jsEscapeMap[unicodeStr]]])
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.map(([unicodeStr, shortCode]) => ({ [unicodeStr]: [emojione.emojioneList[shortCode].fname, shortCode.slice(1, shortCode.length - 1)] }))
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.map(([unicodeStr, shortCode]) => ({ [unicodeStr]: [emojione.emojioneList[shortCode].fname, shortCode.slice(1, shortCode.length - 1)] }))
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.reduce((x, y) => Object.assign(x, y), { });
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.reduce((x, y) => Object.assign(x, y), { });
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