SQUEEZE and UNSQUEEZE
---------------------
(c) 1987 by Don Elton
Carolina System Software

Permission is hereby granted for you to make any use of these programs
as you see fit provided that you give credit to the author in your
documentation if you should resell these programs.

SQ3 and USQ2 are ProDOS 8 System programs used to either compress or
decompress individual ProDOS files of any type.  Each program will
prompt you with:

SOURCE, DESTINATION:

At this prompt you are to enter two prodos pathnames.  The first is the
file to be processed and the second is the file to be created as a result
of the processing.  In the case of SQ3, both paths are mandatory.  In the
case of USQ2 you can leave off the destination path if you want the new
file saved using the name that was used when the file was originally 
squeezed.  Note that in some cases this will not result in a valid prodos
pathname.. particularly if you're unsqueezing a file that was originally
squeezed with a version of SQ that runs on another computer or operating
system such as MS-DOS, UNIX, or CP/M.  In these cases you will need to
specify both pathnames.

Note that files you squeeze under Apple ProDOS 8 using SQ3 can be 
unsqueezed later with the appropriate version of USQ on MS-DOS, UNIX,
or CP/M computers.  You may also unsqueeze files with USQ2 that were
originally squeezed no other computers running different operating 
systems.

SQ3 uses the popular Huffman algorithm for file compression combined with
run length encoding.  This means that files that have lots of repeated
byte sequences (such as graphics files) or files that use a limited
character set (such as text or source files) will compress more efficiently
than binary files.  Text or graphics files may compress to as little as
40% of their original size while binary files may actually grow in some
cases.

For information about Carolina System Software shareware products write
to Carolina System Software, 3207 Berkeley Forest Drive, Columbia, SC 29209.
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