Function codePointToSymbol

test-app/public/mocha.js:11722–11750

(codePoint, strict)

  
    // Modified version of `ucs2encode`; see https://mths.be/punycode.
    var codePointToSymbol = function(codePoint, strict) {
      var output = '';
      if ((codePoint >= 0xD800 && codePoint <= 0xDFFF) || codePoint > 0x10FFFF) {
        // See issue #4:
        // “Otherwise, if the number is in the range 0xD800 to 0xDFFF or is
        // greater than 0x10FFFF, then this is a parse error. Return a U+FFFD
        // REPLACEMENT CHARACTER.”
        if (strict) {
          parseError('character reference outside the permissible Unicode range');
        }
        return '\uFFFD';
      }
      if (has(decodeMapNumeric, codePoint)) {
        if (strict) {
          parseError('disallowed character reference');
        }
        return decodeMapNumeric[codePoint];
      }
      if (strict && contains(invalidReferenceCodePoints, codePoint)) {
        parseError('disallowed character reference');
      }
      if (codePoint > 0xFFFF) {
        codePoint -= 0x10000;
        output += stringFromCharCode(codePoint >>> 10 & 0x3FF | 0xD800);
        codePoint = 0xDC00 | codePoint & 0x3FF;
      }
      output += stringFromCharCode(codePoint);
      return output;
    };
  
    var hexEscape = function(codePoint) {
      return '&#x' + codePoint.toString(16).toUpperCase() + ';';