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

[Kjetil S. Matheussen]

BACKGROUND
----------
Emacs makes inferior-scheme and inferior-lisp hang when you evaluate
a large block of code which is directly followed by a hash (#).

This is a bug I've encountered numerous times for many
years. I'm currently using emacs-cvs from 2008-07-04
though.

It does not seem to matter which implementation of
scheme or common lisp is running as inferior-scheme
or inferior-lisp.



HOW TO PROVOCE THE HANG IN SCHEME
---------------------------------
This should be an exact recipe on how to make inferior-scheme hang:

1. Load this file into emacs:
   http://www.notam02.no/~kjetism/emacsbug.scm

2. Start scheme by using M-x run-scheme

3. Place the cursor on to line 2 of emacsbug.scm and
   evaluate the block by pressing C-M-x. If the cursor
   is placed on line 1, scheme won't hang.

4. Scheme does not respond anymore



HOW TO PROVOCE THE HANG IN COMMON LISP
--------------------------------------
To make inferior-lisp hang, just replace the "define" on
line 1 in emacsbug.scm with a "defun", change
to common-lisp-mode, and do the same thing.