Age old bug

[KMP at MIT-MC (Kent M. Pitman)]

This also is getting in the way of reasonable rubout processing for Macsyma.
I mention this to encourage those who do such things to consider this sort of
bug to be something that is worth it to the group to look into ...

(PROGN (TYIPEEK) (PRINT 'FOO))*
FOO
T

Now, you *CAN'T* rub out the *.
     you *CAN'T* control-k the *.
     you *CAN'T* get the * to evaluate ... until either TYI it or
      another form gets read and that forces the prescan to push off to
      the evaluator. typing lots of spaces doesn't help. it sits there until
      you type a ")" or a real expression.

I know this is an old bug, but it's one I'd like to see fixed.
-kmp