Date   : Sun, 13 Jan 1985 04:05:56 GMT
From   : Tim Maroney <tim@CMU-CS-K.ARPA>
Subject: Screen Editor

Some weeks ago, I snarfed the public domain screen editor from SIMTEL20.  It
was nicely done, but a three-mode editor was totally unacceptable to my
emacs-configured fingers.  I've hacked away at it heavily, adding many
features and completely replacing the user interface with an emacs-like one
(although it is not emacs-like otherwise -- no multiple windows, no
extension language, no marking yet).

The major extension that still needs to be done is extending it to arbitrary
file sizes.  I have worked out a scheme for doing this, but I was wondering
whether anyone else has already done it, with the new buffer module being in
the public domain.  If so, it would sure save a lot of time.

If not, then I have a question for you CP/M wizards.  Is there any portable
way to make a file shrink?  That is, to free sectors from the end of it that
were formerly in use?  If so, how?  I have not examined the CP/M file system
heavily, although I have hacked other parts of BIOS, so if there is a way it
shouldn't be over my head.  I need this because I don't want my temporary
files to be stuck at their maximum length.
-=-
Tim Maroney, Carnegie-Mellon University Computation Center
ARPA:  Tim.Maroney@CMU-CS-K    uucp:   seismo!cmu-cs-k!tim
CompuServe:    74176,1360      audio:  shout "Hey, Tim!"

"Remember all ye that existence is pure joy; that all the sorrows are
but as shadows; they pass & are done; but there is that which remains."
Liber AL, II:9.