Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!jarthur!nntp-server.caltech.edu!pooh!madler
From: madler@pooh.caltech.edu (Mark Adler)
Newsgroups: comp.compression
Subject: Re: Compression on Unix machines
Message-ID: <1991Mar25.151410.23798@nntp-server.caltech.edu>
Date: 25 Mar 91 15:14:10 GMT
References: <xf5f3=c@rpi.edu>
Sender: news@nntp-server.caltech.edu
Organization: California Institute of Technology, Pasadena
Lines: 13


A public domain Zip is being polished off (by me and some others) and
will be out Real Soon Now.  It works on Unix, MSDOS, and VMS, with the
intent of eventually having it work on VM/CMS and Mac's.  It is fully
compatible with PKZIP on PC's, and includes the implode method, which
is considerably better than LZW (a variant of which is the shrink
method, which is also tried by PKZIP and our Zip).  Implode right now
is only somewhat faster than LHARC, and provides about the same       
compression.  However, a new string matcher currently being worked 
on will considerably speed up implode.                          

Mark Adler
madler@pooh.caltech.edu