[Chicken-users] ANNOUNCE: q-lang egg version 1.0 for Chicken Scheme available!

[John Cowan]

This egg (Chicken Scheme library) makes available the facilities of the
Q language to Chicken programmers.  Q is an eager functional language
based on equational term rewriting.

The egg is temporarily available at
http://www.ccil.org/~cowan/temp/q-lang.egg.  Chicken admins, can you
copy it to the standard egg repository, please?

Chicken programmers, there are some nice examples of Q equations at
http://q-lang.sourceforge.net/examples/ .  Q admins, can you copy dnf.q
to this directory as well?  Both dnf.q and symbolic.q illustrate some
of the ease of use of Q's general-purpose term rewriting.

Here's an interactive example:

$ csi -R q-lang
Chicken
Version 2.432 - windows-cygwin-x86 - [ dload ptables applyhook cmake ]
(c)2000-2006 Felix L. Winkelmann
; loading /usr/local/lib/chicken/1/q-lang.dll ...
; loading /usr/local/lib/chicken/1/numbers-base.dll ...
#;1> (q:code-reduce-to-code "1+2+3")
"6"
#;2> (q:reduce-to-exp '(q:call + (q:call + 1 2) 3)))
6
#;3> (q:reduce-to-code '(1 2 3 4 5))
"[1,2,3,4,5]"
#;4> (q:load-rules! "/usr/local/share/q/examples/dnf.q")
#;5> (q:code-reduce-to-code "(A or B) and (C or D)")
"A and C or B and C or A and D or B and D"

-- 
John Cowan    address@hidden    http://ccil.org/~cowan
Half the lies they tell about me are true.
        -- Tallulah Bankhead, American actress