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Guile 100 Prob #3 LZW compression / Solution #1 echo and cat

From: Mike Gran
Subject: Guile 100 Prob #3 LZW compression / Solution #1 echo and cat
Date: Mon, 25 Mar 2013 22:19:10 -0700 (PDT)

Challenge #3 in the Guile 100 Programs Project is to write a version
the Posix program `compress'.  This includes the task of writing
procedures to do LZW compression. It is the third challenge in this
month's theme, which is "/bin - reimplementing common Posix tools".
Details are at

Also, Solution #1, `echo' and `cat' is posted.  Chris Jester-Young
was the volunteer for that.  Please check it out and let me know what
you think.  My edit of his code is up at

The Guile 100 Programs Project is an attempt to collaboratively
generate a set of examples of how to use the GNU Guile implementation
of Scheme.

To help ensure that each challenge has at least one completed
implementation, an "official volunteer" will be chosen at random from
those that have expressed interest in the project.  If that official
volunteer can complete the task in two weeks, he or she will receive a
bounty of 100 USD.  The official volunteer for this week's challenge
will be chosen on Wednesday Mar 27.

For more information, check out the project's website at
To request to join the project as a potential official volunteer,
or to otherwise contact the project, e-mail


Mike Gran

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