| 1 | var decodeMap = require("../maps/decode.json");
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| 2 |
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| 3 | module.exports = decodeCodePoint;
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| 4 |
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| 5 |
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| 6 | function decodeCodePoint(codePoint){
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| 7 |
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| 8 | if((codePoint >= 0xD800 && codePoint <= 0xDFFF) || codePoint > 0x10FFFF){
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| 9 | return "\uFFFD";
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| 10 | }
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| 11 |
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| 12 | if(codePoint in decodeMap){
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| 13 | codePoint = decodeMap[codePoint];
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| 14 | }
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| 15 |
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| 16 | var output = "";
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| 17 |
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| 18 | if(codePoint > 0xFFFF){
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| 19 | codePoint -= 0x10000;
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| 20 | output += String.fromCharCode(codePoint >>> 10 & 0x3FF | 0xD800);
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| 21 | codePoint = 0xDC00 | codePoint & 0x3FF;
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| 22 | }
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| 23 |
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| 24 | output += String.fromCharCode(codePoint);
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| 25 | return output;
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| 26 | }
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