decode_codepoint.js 946 B

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  1. "use strict";
  2. var __importDefault = (this && this.__importDefault) || function (mod) {
  3. return (mod && mod.__esModule) ? mod : { "default": mod };
  4. };
  5. Object.defineProperty(exports, "__esModule", { value: true });
  6. var decode_json_1 = __importDefault(require("./maps/decode.json"));
  7. // modified version of https://github.com/mathiasbynens/he/blob/master/src/he.js#L94-L119
  8. function decodeCodePoint(codePoint) {
  9. if ((codePoint >= 0xd800 && codePoint <= 0xdfff) || codePoint > 0x10ffff) {
  10. return "\uFFFD";
  11. }
  12. if (codePoint in decode_json_1.default) {
  13. codePoint = decode_json_1.default[codePoint];
  14. }
  15. var output = "";
  16. if (codePoint > 0xffff) {
  17. codePoint -= 0x10000;
  18. output += String.fromCharCode(((codePoint >>> 10) & 0x3ff) | 0xd800);
  19. codePoint = 0xdc00 | (codePoint & 0x3ff);
  20. }
  21. output += String.fromCharCode(codePoint);
  22. return output;
  23. }
  24. exports.default = decodeCodePoint;