package org.apache.commons.codec.net;

import org.apache.commons.codec.DecoderException;

class Utils {
   static int digit16(byte b) throws DecoderException {
      int i = Character.digit((char)b, 16);
      if (i == -1) {
         throw new DecoderException("Invalid URL encoding: not a valid digit (radix 16): " + b);
      } else {
         return i;
      }
   }
}
