lookup jaltWideLetters {
  lookupflag RightToLeft;
    sub \afii57664 by \uniFB21 ;
    sub \afii57667 by \uniFB22 ;
    sub \afii57668 by \uniFB23 ;
    sub \afii57675 by \uniFB24 ;
    sub \afii57676 by \uniFB25 ;
    sub \afii57677 by \uniFB26 ;
    sub \afii57688 by \uniFB27 ;
    sub \afii57690 by \uniFB28 ;
} jaltWideLetters;

feature jalt {
  script hebr;
    language dflt ;
      lookup jaltWideLetters;
} jalt;