71 lines
2.1 KiB
JavaScript
71 lines
2.1 KiB
JavaScript
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// Adapted from https://github.com/mathiasbynens/he/blob/36afe179392226cf1b6ccdb16ebbb7a5a844d93a/src/he.js#L106-L134
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var _a;
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const decodeMap = new Map([
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[0, 65533],
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// C1 Unicode control character reference replacements
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[128, 8364],
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[130, 8218],
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[131, 402],
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[132, 8222],
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[133, 8230],
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[134, 8224],
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[135, 8225],
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[136, 710],
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[137, 8240],
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[138, 352],
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[139, 8249],
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[140, 338],
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[142, 381],
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[145, 8216],
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[146, 8217],
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[147, 8220],
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[148, 8221],
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[149, 8226],
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[150, 8211],
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[151, 8212],
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[152, 732],
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[153, 8482],
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[154, 353],
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[155, 8250],
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[156, 339],
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[158, 382],
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[159, 376],
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]);
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/**
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* Polyfill for `String.fromCodePoint`. It is used to create a string from a Unicode code point.
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*/
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export const fromCodePoint =
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// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition, node/no-unsupported-features/es-builtins
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(_a = String.fromCodePoint) !== null && _a !== void 0 ? _a : function (codePoint) {
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let output = "";
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if (codePoint > 0xffff) {
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codePoint -= 0x10000;
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output += String.fromCharCode(((codePoint >>> 10) & 0x3ff) | 0xd800);
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codePoint = 0xdc00 | (codePoint & 0x3ff);
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}
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output += String.fromCharCode(codePoint);
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return output;
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};
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/**
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* Replace the given code point with a replacement character if it is a
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* surrogate or is outside the valid range. Otherwise return the code
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* point unchanged.
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*/
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export function replaceCodePoint(codePoint) {
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var _a;
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if ((codePoint >= 0xd800 && codePoint <= 0xdfff) || codePoint > 0x10ffff) {
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return 0xfffd;
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}
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return (_a = decodeMap.get(codePoint)) !== null && _a !== void 0 ? _a : codePoint;
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}
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/**
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* Replace the code point if relevant, then convert it to a string.
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*
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* @deprecated Use `fromCodePoint(replaceCodePoint(codePoint))` instead.
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* @param codePoint The code point to decode.
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* @returns The decoded code point.
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*/
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export default function decodeCodePoint(codePoint) {
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return fromCodePoint(replaceCodePoint(codePoint));
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}
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//# sourceMappingURL=decode_codepoint.js.map
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