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@Dal_1 = [@aDal.fina @aDal.fina_BaaDalIsol
          @aDal.fina_KafDal @aDal.fina_LamDal];
@Dal_2 = [@aDal.isol];
@1st_3 = [@aRaa.fina_MemRaaIsol];
@1st_4 = [@aHeh.isol @aHeh.fina @aHeh.fina_KafHeh @aHeh.fina_LamHeh];

@Kaf_1 = [@aKaf.init_KafHeh
          @aKaf.init_KafMemInit @aKaf.init_KafYaaIsol
          @aKaf.init_KafMemIsol
          @aKaf.init_KafRaaIsol];
@Kaf_2 = [@aKaf.init_KafBaaInit @aKaf.init_KafMemAlf];
@Kaf_3 = [@aKaf.init @aKaf.init_KafLam];
@2nd_3 = [@aSen.init_SenHaaInit @aSad.init_SadHaaInit @aLam.init_LamHaaHaaInit];
@2nd_4 = [@aSad.init_AboveHaaIsol @aSen.init_AboveHaaIsol @aHeh.init_AboveHaaIsol
          @aHaa.init_AboveHaaIsol @aMem.init_AboveHaaIsol @aKaf.init_AboveHaaIsol
          @aAyn.init_AboveHaaIsol];

feature kern {
  lookupflag IgnoreMarks;
  pos [@RaaWaw @Dal_1]' <-600 0 -600 0> @Kaf_1;
  pos [@RaaWaw @Dal_1]' <-300 0 -300 0> [@Kaf_2 @Kaf_3];

  pos @RaaWaw' <-100 0 -100 0> @2nd_3;

  pos @Dal_2' <-200 0 -200 0> @Kaf_3;

  pos @1st_3' <-400 0 -400 0> [@Kaf_2 @Kaf_3];
  pos @1st_3' <-800 0 -800 0> @Kaf_1;
  pos @1st_3' <-200 0 -200 0> @2nd_3;
  pos @1st_3' <-400 0 -400 0> @2nd_4;

  # +ve kern so that the tail of raa/waw does not touch the dot of baa
  pos @RaaWaw' <170 0 170 0> @aBaaDotBelow;
} kern;

feature kern {
  lookupflag IgnoreMarks;
  pos @RaaWaw' <80 0 80 0> @aYaa.init;
} kern;

feature kern {
  lookupflag IgnoreMarks;
  # kern heh isol/final followed by kaf, does not happen in Arabic but can be
  # seen in Kurdish or Persian using ZWNJ between them.
  pos uni200C @1st_4 [@Kaf_1 @Kaf_2 @Kaf_3]' -500;
  pos space   @1st_4 [@Kaf_1 @Kaf_2 @Kaf_3]' -500; # Uniscribe replace ZWNJ with space
  pos         @1st_4 [@Kaf_1 @Kaf_2 @Kaf_3]' -500; # some applications might just remove it
} kern;