[cwn] Attn: Development Editor, Latest Caml Weekly News
Alan Schmitt
alan.schmitt at polytechnique.org
Tue Feb 28 01:08:36 PST 2006
Hello,
Here is the latest Caml Weekly News, for the week of February 21 to
28, 2006.
1) PG'OCaml - type safe bindings for PostgreSQL
2) Camomile 0.6.4
3) Xdialog2Ocaml and Kdialog2Ocaml
4) Map.fold behavior changed
========================================================================
1) PG'OCaml - type safe bindings for PostgreSQL
Archive: <http://thread.gmane.org/gmane.comp.lang.caml.general/32287>
------------------------------------------------------------------------
** Richard Jones announced:
Not the only bindings for PostgreSQL, of course. Not even the only
type safe ones.
<http://merjis.com/developers/pgocaml>
The license is LGPL + linking exception.
We rewrote some big chunks of code over the weekend to use this new
interface (in preference to ocamldbi) and the results were quite
successful.
========================================================================
2) Camomile 0.6.4
Archive: <http://thread.gmane.org/gmane.comp.lang.caml.general/32298>
------------------------------------------------------------------------
** Yamagata Yoriyuki announced:
I'm pleased to announce Camomile 0.6.4, a comprehensive Unicode
library for OCaml. This release is a bug fix release.
Change:
Native code library (camomile.cmxa) becomes link-able
Download:
<https://sourceforge.net/project/showfiles.php?
group_id=40603&package_id=32800&release_id=395662>
========================================================================
3) Xdialog2Ocaml and Kdialog2Ocaml
Archive: <http://thread.gmane.org/gmane.comp.lang.caml.general/32324>
------------------------------------------------------------------------
** Kévin Sejourne announced:
I'm pleased to announce the availability of Xdialog2Ocaml and
Kdialog2Ocaml with a support of all pop-up windows. There is some
function that are not avaible in the both tools but the main difference
is the use of polymorphic variants or build-in types + exceptions.
The interfaces are under licence GPL.
enjoy!
Downloads.
Xdialog2Ocaml :
<http://www.limsi.fr/Individu/sejourne/distrib/Xdialog2Ocaml.tar.gz>
Kdialog2Ocaml :
<http://www.limsi.fr/Individu/sejourne/distrib/kdialog2Ocaml.tar.gz>
========================================================================
4) Map.fold behavior changed
Archive: <http://article.gmane.org/gmane.comp.lang.caml.general/32348>
------------------------------------------------------------------------
** Deep in this thread, Brian Hurt said and Jean-Christophe Filliatre
added:
> I may take this opportunity to offer a red-black tree
implementation of
> Map as a replacement, if people are interested. The advantage a
> red-black tree is that it uses one less word of memory per element
in a
> map.
For information, I wrote an implementation of Set using red-black
trees a long time ago. It is available here:
<http://www.lri.fr/~filliatr/software.en.html>
Note: this code was even formally proved correct using a proof
assistant. Getting Map from Set is rather straightforward.
I also did some benchmarks to compare red-black trees, patricia trees
and Ocaml AVLs and, as time is concerned, the AVLs were (almost)
always the most efficient.
========================================================================
Using folding to read the cwn in vim 6+
------------------------------------------------------------------------
Here is a quick trick to help you read this CWN if you are viewing it
using
vim (version 6 or greater).
:set foldmethod=expr
:set foldexpr=getline(v:lnum)=~'^=\\{78}$'?'<1':1
zM
If you know of a better way, please let me know.
========================================================================
Old cwn
------------------------------------------------------------------------
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========================================================================
Alan Schmitt, <http://alan.petitepomme.net/>
--
Alan Schmitt <http://alan.petitepomme.net/>
The hacker: someone who figured things out and made something cool
happen.
.O.
..O
OOO
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