bug#537: Emacs makes inferior-scheme and inferior-lisp hang when...

["Kjetil S. Matheussen" <k.s.matheussen@notam02.no>]

On Sun, 6 Jul 2008, Richard M Stallman wrote:

>    It does not seem to matter which implementation of
>    scheme or common lisp is running as inferior-scheme
>    or inferior-lisp.
>
> I have a suspicion that this is due to a problem with
> send-region.  Is the expression so long that it fills
> up the input buffer of the child process?
>

I don't think so. Let's say I try to evaluate the following
expression:

(define (add a b)
   (+ a
      b))

If I place the cursor at the "(define (add a b)" line,
inverior-scheme will never hang.

However, if I place it at the "  (+ a" line, or the
"    b))" line, it might.

And it also seem like a hash needs to be placed on
the line after:

(define (add a b)
   (+ a
      b))
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