Function percentDecode

github-actions/saucelabs/set-saucelabs-env.js:3534–3550

(input)

      function isHexCharByte(byte) {
        return byte >= 48 && byte <= 57 || byte >= 65 && byte <= 70 || byte >= 97 && byte <= 102;
      }
      function hexByteToNumber(byte) {
        return (
          // 0-9
          byte >= 48 && byte <= 57 ? byte - 48 : (byte & 223) - 55
        );
      }
      function percentDecode(input) {
        const length = input.length;
        const output = new Uint8Array(length);
        let j = 0;
        for (let i = 0; i < length; ++i) {
          const byte = input[i];
          if (byte !== 37) {
            output[j++] = byte;
          } else if (byte === 37 && !(isHexCharByte(input[i + 1]) && isHexCharByte(input[i + 2]))) {
            output[j++] = 37;
          } else {
            output[j++] = hexByteToNumber(input[i + 1]) << 4 | hexByteToNumber(input[i + 2]);
            i += 2;