Re: DOS 3.3 for 1.40 MB disk, for a system with non-working 80-column code?

[Andy McFadden <fadden@fadden.com>]

Rob Greene <greeneratcharterdotnet> wrote:
> Is anyone aware of Java classes to work with SHK and SDK files?  I've 
> come across the documents regarding the format of the files, but it 
> assumes that the reader already knows the encoding/decoding algorithms, 
> which I most definately do not.  I'd like to incorporate the ShrinkIt 
> filetype into AppleCommander.  (For example, an SDK or maybe even a SHK 
> could be opened as a "disk image" in AppleCommander.  Possibly also 
> being able to open a SHK or SDK file that sits within a disk image.)


NufxLib provides a full set of C functions.  The LGPL-license library, with
complete documentation, is available from http://www.nulib.com/.  Converting
these to Java classes is left as an exercise for the reader, but at least
you have known working code to start with.

As mentioned elsewhere in this thread, LZW is patented, but the patent
expires in about six months.  The current (v1.1.0) release of NufxLib
can be built without LZW and LZC support if desired.

Unisys released a statement to the effect that freeware applications
that don't manipulate GIF or TIFF-LZW images do not require royalty
payments.  To the best of my knowledge, neither ShrinkIt nor NuLib2
require royalties to be paid.

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