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@ -9,39 +9,38 @@ const emojify = (str, customEmojis = {}) => { |
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let rtn = ''; |
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for (;;) { |
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let match, i = 0, tag; |
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while (i < str.length && (tag = '<&'.indexOf(str[i])) === -1 && str[i] !== ':' && !(match = trie.search(str.slice(i)))) { |
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while (i < str.length && (tag = '<&:'.indexOf(str[i])) === -1 && !(match = trie.search(str.slice(i)))) { |
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i += str.codePointAt(i) < 65536 ? 1 : 2; |
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} |
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if (i === str.length) |
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let rend, replacement = ''; |
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if (i === str.length) { |
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break; |
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else if (tag >= 0) { |
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const tagend = str.indexOf('>;'[tag], i + 1) + 1; |
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if (!tagend) |
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break; |
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rtn += str.slice(0, tagend); |
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str = str.slice(tagend); |
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} else if (str[i] === ':') { |
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try { |
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// if replacing :shortname: succeed, exit this block with "continue"
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const closeColon = str.indexOf(':', i + 1) + 1; |
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if (!closeColon) throw null; // no pair of ':'
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if (!(() => { |
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rend = str.indexOf(':', i + 1) + 1; |
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if (!rend) return false; // no pair of ':'
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const lt = str.indexOf('<', i + 1); |
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if (!(lt === -1 || lt >= closeColon)) throw null; // tag appeared before closing ':'
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const shortname = str.slice(i, closeColon); |
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if (!(lt === -1 || lt >= rend)) return false; // tag appeared before closing ':'
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const shortname = str.slice(i, rend); |
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// now got a replacee as ':shortname:'
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// if you want additional emoji handler, add statements below which set replacement and return true.
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if (shortname in customEmojis) { |
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rtn += str.slice(0, i) + `<img draggable="false" class="emojione" alt="${shortname}" title="${shortname}" src="${customEmojis[shortname]}" />`; |
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str = str.slice(closeColon); |
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continue; |
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replacement = `<img draggable="false" class="emojione" alt="${shortname}" title="${shortname}" src="${customEmojis[shortname]}" />`; |
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return true; |
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} |
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} catch (e) {} |
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// replacing :shortname: failed
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rtn += str.slice(0, i + 1); |
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str = str.slice(i + 1); |
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} else { |
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return false; |
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})()) rend = ++i; |
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} else if (tag >= 0) { // <, &
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rend = str.indexOf('>;'[tag], i + 1) + 1; |
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if (!rend) break; |
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i = rend; |
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} else { // matched to unicode emoji
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const [filename, shortCode] = unicodeMapping[match]; |
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rtn += str.slice(0, i) + `<img draggable="false" class="emojione" alt="${match}" title=":${shortCode}:" src="${assetHost}/emoji/${filename}.svg" />`; |
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str = str.slice(i + match.length); |
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replacement = `<img draggable="false" class="emojione" alt="${match}" title=":${shortCode}:" src="${assetHost}/emoji/${filename}.svg" />`; |
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rend = i + match.length; |
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} |
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rtn += str.slice(0, i) + replacement; |
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str = str.slice(rend); |
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} |
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return rtn + str; |
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}; |
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