26 lines
691 B
JavaScript
26 lines
691 B
JavaScript
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var decodeMap = require("../maps/decode.json");
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module.exports = decodeCodePoint;
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// modified version of https://github.com/mathiasbynens/he/blob/master/src/he.js#L94-L119
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function decodeCodePoint(codePoint) {
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if ((codePoint >= 0xd800 && codePoint <= 0xdfff) || codePoint > 0x10ffff) {
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return "\uFFFD";
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}
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if (codePoint in decodeMap) {
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codePoint = decodeMap[codePoint];
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}
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var 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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