#$ !A [] $41 |CI0 //jump over else code.
#XPOP !n S$ // GET GOTO LINE NUMBER FROM LAST IF.
#XPUSH 1 !a // Save line number of ELSE jump.
#XPUSH 0 !n // Save static nest level.
#FREF (!a+1) !s // Modify goto line number with ELSE command
!1 !2 !3 !4 !5 !6 !7 !8 !9
#XPOP 0 Q$ // Restore static nest level to Q.
#XPOP 1 S$ // Restore line number of else jump.
#IF (!n>!q)
#FREF END$!r !s // Modify ELSE jump to after BEGIN block.
#ELSE
#FREF (!a+1) !s // Modify ELSE jump to after the ELSE command.
#ENDIF