On 2019-03-30 16:03:02 +0000, Richard Menedetter -> Ozz Nixon said:

> Hi Ozz!
>
> 28 Mar 2019 13:37, from Ozz Nixon -> Ozz Nixon:
>
>   ON> Anyone know what the name of the ASCII compression algorithm that is
>   ON> based upon 6bit ASCII and most frequently used characters?
>
> No.
> What use would it be?

Actually it is *very* useful in the 7bit ASCII world of Fidonet messages. Or
other #32..#127 character based strings. There are 2 I have looked at - the
algorithm I already have beats shoci, the other is called smaz (which beats
this algorithm). I am porting smaz to Pascal, however, the algorithm I have is
very simple to read and understand - whereas, smaz is doing post compression
matching of common patterns to make it even smaller output.

I am just curious if anyone knows what the heck this algorithm is called. I
found it and used it in my tosser in 1994 - thus where I came across it
recently.

If you google compression etaonirshdl you will find someone has ported it to
Delphi. I found this with a 1996 copyright on it:
https://github.com/dblock/xreplace/blob/maste... - which
 is not LZH in any way.

What use would it be? Simple storage compression in JAM for my NNTP Server I
wrote (working on the web interface now). MODE STREAM from machine to machine
in real-time - simple compressions like these can be much more efficient than
dictionary based algorithms, and much smaller memory footprint - when streaming
 millions of messages a day from usenet -> my server in AZ -> my server in TX
(and) -> to my server in VA which is moving to FL in 14wks +/-.

Ozz


-- 
.. Ozz Nixon
... Author ExchangeBBS (suite)
.... Since 1983 BBS Developer

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