code: private boolean isSpecial(final char paramInput) {
  
          return (paramInput == ')') || (paramInput == ';') || (paramInput == ',') || (paramInput == '@')
              || (paramInput == '[') || (paramInput == ']') || (paramInput == '=') || (paramInput == '"')
              || (paramInput == '\'') || (paramInput == '$') || (paramInput == ':') || (paramInput == '|')
              || (paramInput == '+') || (paramInput == '-') || (paramInput == '?') || (paramInput == '*');
      }
docs: Checks if the given character is a special character.
  
  @param paramInput
  The character to check.
  @return Returns true, if the character is a special character.