39 lines
1000 B
TypeScript
39 lines
1000 B
TypeScript
const U200D = String.fromCharCode(8205)
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const UFE0Fg = /\uFE0F/g
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export function getIconCode(char: string) {
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return toCodePoint(char.indexOf(U200D) < 0 ? char.replace(UFE0Fg, "") : char)
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}
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function toCodePoint(unicodeSurrogates: string) {
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const r = []
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let c = 0,
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p = 0,
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i = 0
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while (i < unicodeSurrogates.length) {
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c = unicodeSurrogates.charCodeAt(i++)
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if (p) {
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r.push((65536 + ((p - 55296) << 10) + (c - 56320)).toString(16))
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p = 0
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} else if (55296 <= c && c <= 56319) {
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p = c
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} else {
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r.push(c.toString(16))
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}
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}
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return r.join("-")
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}
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const twemoji = (code: string) =>
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`https://cdnjs.cloudflare.com/ajax/libs/twemoji/15.1.0/svg/${code.toLowerCase()}.svg`
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const emojiCache: Record<string, Promise<any>> = {}
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export function loadEmoji(code: string) {
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const type = "twemoji"
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const key = type + ":" + code
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if (key in emojiCache) return emojiCache[key]
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return (emojiCache[key] = fetch(twemoji(code)).then((r) => r.text()))
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}
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