str-var = CVT$$(str-exp, int-exp)

  Values   Effect

  1%       Trim parity bits
  2%       Discard all spaces and tabs
  4%       Discard characters: CR, LF, FF, ESC, RUBOUT, and NULL
  8%       Discard leading spaces and tabs
  16%      Reduce spaces and tabs to one space
  32%      Convert lowercase to uppercase
  64%      Convert [ to ( and ] to )
  128%     Discard trailing spaces and tabs
  256%     Do not alter characters inside quotes