[q-lang-users] Q 7.2 RC1 available

[Albert G. <Dr....@t-...>]

Hi all,

I've just uploaded a candidate for the upcoming 7.2 release. It is 
available here:
http://sourceforge.net/project/showfiles.php?group_id=96881&package_id=188958&release_id=425798

New in this release:

- a hook into the expression printer which allows you to define custom 
unparsings for all data types ('unparse' function)

- a revision of Q's numeric tower, which now also includes a 'Real' type

- overhaul of complex.q (complex numbers are now represented using an 
algebraic type 'Complex')

- integration of rational.q into the standard library (only the 
'Rational' type and basic rational arithmetic is defined in this module, 
the remaining operations from Rob Hubbard's "Q+Q" library are in a 
separate add-on package which is now also included in binary releases)

- new Scheme-like semantic number type predicates in typec.q, as 
suggested by John Cowan

More details can be found in the release notes, available here:
http://sourceforge.net/project/shownotes.php?release_id=425798&group_id=96881

It would be nice if you could all test the new rational and complex 
number implementations, so that any remaining bugs can be ironed out 
before the final release.

Rob, I hope I did an acceptable job integrating your library, if not 
then please complain. ;-) The documentation in rational.pdf needs some 
minor updates as detailed in private mail. It would be nice if you could 
have a look at that, and please let me know if you find anything in the 
rational number support that still needs to be changed before the final 
release. And thanks a lot again for making "Q+Q" available, this is 
really an important addition to the library!

John, the rational number constructor is named "rat", in case you need 
that for your Q egg for Chicken. It's a private symbol, so you probably 
have to use a qualified identifier like "rational::rat" to access it via 
libqint.

Cheers,
Albert

-- 
Dr. Albert Gr"af
Dept. of Music-Informatics, University of Mainz, Germany
Email:  Dr....@t-..., ag...@mu...
WWW:    http://www.musikinformatik.uni-mainz.de/ag