kopia lustrzana https://gitlab.com/soapbox-pub/soapbox
36 wiersze
1.1 KiB
TypeScript
36 wiersze
1.1 KiB
TypeScript
// Taken from twemoji-parser
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// https://github.com/twitter/twemoji-parser/blob/a97ef3994e4b88316812926844d51c296e889f76/src/index.js
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/** Remove Variation Selector-16 characters from emoji */
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// https://emojipedia.org/variation-selector-16/
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const removeVS16s = (rawEmoji: string): string => {
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const vs16RegExp = /\uFE0F/g;
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const zeroWidthJoiner = String.fromCharCode(0x200d);
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return rawEmoji.indexOf(zeroWidthJoiner) < 0 ? rawEmoji.replace(vs16RegExp, '') : rawEmoji;
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};
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/** Convert emoji into an array of Unicode codepoints */
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const toCodePoints = (unicodeSurrogates: string): string[] => {
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const points = [];
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let char = 0;
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let previous = 0;
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let i = 0;
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while (i < unicodeSurrogates.length) {
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char = unicodeSurrogates.charCodeAt(i++);
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if (previous) {
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points.push((0x10000 + ((previous - 0xd800) << 10) + (char - 0xdc00)).toString(16));
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previous = 0;
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} else if (char > 0xd800 && char <= 0xdbff) {
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previous = char;
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} else {
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points.push(char.toString(16));
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}
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}
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return points;
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};
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export {
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removeVS16s,
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toCodePoints,
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};
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