Here is the latest Caml Weekly News, for the week of 21 to 28 June, 2005.
Archive: http://thread.gmane.org/gmane.comp.lang.caml.general/29396Jon Harrop announced:
For anyone who is interested in commercial exploits using OCaml, we are releasing our first stand-alone sofware package, Presenta. Presenta is an OpenGL-based slideshow presentation program with support for animated points, typeset mathematics, 2D and 3D graphics: http://www.ffconsultancy.com/products/presenta/ The whole program is just under 10,000 LOC, entirely OCaml. The core of the program is a general purpose 2D vector graphics library (Smoke) which we've been developing for the past six years and which was translated from C++ into OCaml 2 years ago, with great success. We currently support only x86 and AMD64 Linux but we are also considering supporting Mac OS X as well. Let me know what you think! :)Gerd Stolpmann then announced:
> For anyone who is interested in commercial exploits using OCaml, we are > releasing our first stand-alone sofware package, Presenta. Looks very cool! Btw, you don't need nVidia drivers, the free DRI-based ones work very well (e.g. on my Intel i850 laptop). I have now also a commercial product written in O'Caml: UMLMON, a monitor for User Mode Linux. As I am mainly targeting the German market, there is currently only documentation in German: http://www.gerd-stolpmann.de/umlmon . An international version may follow if there is enough interest. UMLMON is a classic multiplexing daemon that starts and stops User Mode Linux instances, manages a communications path with them, and does a number of other nice things. Thanks O'Caml it has been developed within six weeks, and is now practically bug-free. Show me another system software developed that quickly.
Archive: http://thread.gmane.org/gmane.comp.lang.caml.general/29412Richard Jones announced:
http://www.annexia.org/tmp/ocamlode-0.5.tar.gz You will need: ocamlsdl, lablgl, extlib and of course the ODE library itself. There's a (not very good) toy game in there too!He later added:
There's a web page for this now: http://merjis.com/developers/ocamlode
Archive: http://thread.gmane.org/gmane.comp.lang.caml.general/29290Richard Jones announced:
There's a web page for OC-SOAP now: http://merjis.com/developers/oc-soap The 0.3.1 version includes a patch to support <all> types in XML Schema, supplied by Jesse D. Guardiani.
Archive: http://thread.gmane.org/gmane.comp.lang.caml.general/29432Jonathan Roewen asked and Richard Jones answered:
> I'd like to create something that works like the format type for > format strings with Printf/Scanf. What I want to do is take a > one-dimensional bigarray, and a format string of all the sizes of the > fields corresponding to a struct, and return the typed results. > > So sizes of 1 = bool, <= 8 char/int (format specifier to choose char), > <= 31 int/int32, = 32 int32, > 32, int64. The OCaml printf/scanf functions are basically hacks done in the compiler. Whereas it is possible to write a new function which takes precisely the same string format as printf/scanf, it's not possible to modify the format without changing the compiler. However, see below ... > The idea is to make reading/writing C-like structs painless & > automated. I'm just not sure where to begin in making this type-safe > format string. Does it require modding the ocaml parser & libraries? > Cause I'm really confused how ocaml can statically parse the string > and enforce type safety without some hack in the compiler at some > stage. It's actually a really good idea. I can't see any immediate reason why it couldn't be done trivially with camlp4. For a good start, read Martin Jambon's camlp4 tutorial (http://martin.jambon.free.fr/extend-ocaml-syntax.html) and then have a look at the code for tywith (http://www.seedwiki.com/wiki/shifting_focus/tywith) and my old simplesoap library (http://merjis.com/developers/simplesoap) which both manipulate types from camlp4.
Archive: http://thread.gmane.org/gmane.comp.lang.caml.general/29441Paul Pelzl announced:
The xterm addicts in the audience may be interested in my calendar application written in OCaml: "Wyrd is a curses front-end for Remind, a powerful calendar and alarm application. The display features a scrollable day calendar suitable for visualizing your schedule at a glance. Wyrd integrates with an external editor of your choice to make manual editing of reminder files more efficient. Other features include significant configurability and Mutt-like interface design." http://www.eecs.umich.edu/~pelzlpj/wyrd As a side note, email to the Hump has been bouncing for a couple of months now, as noted here: http://article.gmane.org/gmane.comp.lang.caml.inria/29014 Would be nice if someone looked into that...
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