Re: ASCII to ASCII compression.

On Thu, 6 Jun 2024 17:55:58 +0100
bart <bc@freeuk.com> wrote:

On 06/06/2024 17:25, Malcolm McLean wrote:

 
Not strictly a C programming question, but smart people will see
the relavance to the topicality, which is portability.
 
Is there a compresiion algorthim which converts human language
ASCII text to compressed ASCII, preferably only "isgraph"
characters?
 
So "Mary had a little lamb, its fleece was white as snow".
 
Would become
 
QWE£$543GtT£$"||x|VVBB? 

 
What's the problem with compressing to binary (using existing,
efficient utilities), then turning that binary into ASCII (like Mime
or Base64)?
 

Or, if we want to make a job just a little bit more interesting, we can
convert to base94, producing ~9% smaller size than base94 :-)