decode_codepoint.js 1.1 KB

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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. // Adapted from https://github.com/mathiasbynens/he/blob/master/src/he.js#L94-L119
  8. var fromCodePoint =
  9. // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
  10. String.fromCodePoint ||
  11. function (codePoint) {
  12. var output = "";
  13. if (codePoint > 0xffff) {
  14. codePoint -= 0x10000;
  15. output += String.fromCharCode(((codePoint >>> 10) & 0x3ff) | 0xd800);
  16. codePoint = 0xdc00 | (codePoint & 0x3ff);
  17. }
  18. output += String.fromCharCode(codePoint);
  19. return output;
  20. };
  21. function decodeCodePoint(codePoint) {
  22. if ((codePoint >= 0xd800 && codePoint <= 0xdfff) || codePoint > 0x10ffff) {
  23. return "\uFFFD";
  24. }
  25. if (codePoint in decode_json_1.default) {
  26. codePoint = decode_json_1.default[codePoint];
  27. }
  28. return fromCodePoint(codePoint);
  29. }
  30. exports.default = decodeCodePoint;