38 lines
1,000 B
TypeScript
38 lines
1,000 B
TypeScript
const U200D = String.fromCharCode(8205)
|
|
const UFE0Fg = /\uFE0F/g
|
|
|
|
export function getIconCode(char: string) {
|
|
return toCodePoint(char.indexOf(U200D) < 0 ? char.replace(UFE0Fg, "") : char)
|
|
}
|
|
|
|
function toCodePoint(unicodeSurrogates: string) {
|
|
const r = []
|
|
let c = 0,
|
|
p = 0,
|
|
i = 0
|
|
|
|
while (i < unicodeSurrogates.length) {
|
|
c = unicodeSurrogates.charCodeAt(i++)
|
|
if (p) {
|
|
r.push((65536 + ((p - 55296) << 10) + (c - 56320)).toString(16))
|
|
p = 0
|
|
} else if (55296 <= c && c <= 56319) {
|
|
p = c
|
|
} else {
|
|
r.push(c.toString(16))
|
|
}
|
|
}
|
|
return r.join("-")
|
|
}
|
|
|
|
const twemoji = (code: string) =>
|
|
`https://cdnjs.cloudflare.com/ajax/libs/twemoji/15.1.0/svg/${code.toLowerCase()}.svg`
|
|
const emojiCache: Record<string, Promise<any>> = {}
|
|
|
|
export function loadEmoji(code: string) {
|
|
const type = "twemoji"
|
|
const key = type + ":" + code
|
|
if (key in emojiCache) return emojiCache[key]
|
|
|
|
return (emojiCache[key] = fetch(twemoji(code)).then((r) => r.text()))
|
|
}
|