Here is the latest Caml Weekly News, for the week of February 07 to 14, 2012.
Archive: https://sympa-roc.inria.fr/wws/arc/caml-list/2012-02/msg00045.htmlContinuing the thread from last week, Pierre Vittet announced:
I have made a minor update of the plugin: When we print the type using <LocalLeader>t, the type is also copied in the unnamed register. This allows to copy it easily. http://www.vim.org/scripts/script.php?script_id=3906
Archive: https://sympa-roc.inria.fr/wws/arc/caml-list/2012-02/msg00047.htmlmalc announced:
New version of llpp is now available (tagged v10) at http://repo.or.cz/w/llpp.git ; Blurb: llpp a graphical PDF viewer which aims to superficially resemble less(1) Changes (relative to v7, last version being announced here): * MuPDF grown itslef XPS and CBZ support * Margin trimming * Multi column mode * Probably more, since: llpp$ git diff --stat v7..v10 | tail -1 11 files changed, 5206 insertions(+), 2514 deletions(-) How to build/run: http://www.youtube.com/watch?v=9xtIqD_mHRw
Archive: https://sympa-roc.inria.fr/wws/arc/caml-list/2012-02/msg00055.htmlmalc announced:
GCC shipped with (current) MingW no longer recognizes -mno-cygwin argument, my oline searches for a workaround were fruitless, but turns out there is one, one can create a self specs file and make gcc (the driver) strip -mno-cygwin from cc1 invokation. This can be done by putting a file named "specs" into a directory listed under "install:" in the output of `gcc -print-search-dirs' containing following line: *cc1: %<mno-cygwin Hope that would save someone the trouble of making things run.
Archive: https://sympa-roc.inria.fr/wws/arc/caml-list/2012-02/msg00056.htmlFrancois Berenger asked and Richard Jones replied:
> I need to use an interval tree. > > Biocaml has one, batteries have imap/iset, nice! > > However, I have intervals of reals, not integers. :( > > I want to build the tree (once), then query it with a real number > (many times) like in: which intervals contain the query real number? > > Should I convert my floats to ints (by sorting them then ranking) before > inserting them into some existing interval tree for integers? > I am not so concerned about the pre-processing time. > > Should I write from scratch? I wrote a segment tree (integers, not floats), which is similar. It wasn't very hard. The code is here if it helps: http://git.annexia.org/?p=virt-mem.git;a=blob;f=lib/virt_mem_mmap.ml;hb=HEADGoswin von Brederlow asked, Eliot Handelman replied and Sebastien Ferre added:
> > Anyone have something like this but for non-overlapping intervals and > > allowing interval insertion and removal with merging and spliting of the > > internaly used intervals? > > > > Cis from Sébastien Ferré? > > > > http://www.irisa.fr/LIS/ferre/software.en.html The Cis library (Cis for Compact Integer Sets) is designed for representing sets of integers, but it could easily be adapted to the insertion and removal of intervals since it already handles the merging and spliting og intervals.Edgar Friendly also replied and Philippe Veber said:
> Yes, IMap / ISet (borrowed from camomile and improved) do this. I assume > biocaml's is the same. Actually no, biocaml_intervalTree keeps the inserted intervals untouched, it is in fact pretty similar to an interval multimap, with some specialized operations. In cases when we want to describe a set of integers (vs a set of intervals), we use ISet from Batteries. With these two structures we can describe an interesting range of genome annotations.
Archive: https://sympa-roc.inria.fr/wws/arc/caml-list/2012-02/msg00077.htmlEdgar Friendly said:
odb is a simple ocaml program to install ocaml packages with dependencies. I've written a document on the assumptions it makes of the packages it's to install. By sharing this, I hope to influence library and application developers to use a standard interface for compiling their program. The details are here: https://github.com/thelema/odb/blob/master/guidelines.md Thank you for any feedback. Please bear in mind that odb is meant to be simple, so the complexity of configuring, building and installing any packages is expected to be in that package's build system, and not odb itself.
Archive: https://sympa-roc.inria.fr/wws/arc/caml-list/2012-02/msg00090.htmlJean-Marc Alliot announced:
This is an interval computation library for ocaml. The download link is : http://www.alliot.fr/code/interval.tgz This library uses assembly code to compute all operations with proper roundings (high/low), and currently ONLY works on intel processors. The package has been developped for linux systems but should probably work on windows distribution with a few tweaks. Documentation is available in the doc/ directory in html, pdf and dvi formats. It is extremely wise to read the whole documentation, even if you intend to only use the interval module. To build the library just type "make" in the main directory. Tests are available in the TESTS/ directory. They are mainly for debugging purpose and quite complicated. You may run them to check that everything is working properly for your machine. The test program runs also a speed test program for your particular architecture. Examples are available in the EXAMPLES/ directory. There is a B_AND_B sub-directory with an example of a branch-and-bound algorithm that uses interval arithmetics for function optimization (the example is for the Griewank function, but you can substitute any function you like).Jean-Marc Alliot later added:
As requested by Fabrice, this is the link to the web page for the library. http://www.alliot.fr/fbbdet.html.fr There are some more things on this page, such as an introduction to interval programming, and to B&B techniques with interval arithmetic.
Thanks to Alp Mestan, we now include in the Caml Weekly News the links to the recent posts from the ocamlcore planet blog at http://planet.ocamlcore.org/. Rediscovering the RSync Algorithm: http://blog.incubaid.com/2012/02/14/rediscovering-the-rsync-algorithm/ gapi-ocaml v0.1 released: https://forge.ocamlcore.org/forum/forum.php?forum_id=823 Opa presentation at a game development meetup, GameJS: http://blog.opalang.org/2012/02/opa-presentation-at-game-development.html
If you happen to miss a CWN, you can send me a message and I'll mail it to you, or go take a look at the archive or the RSS feed of the archives.
If you also wish to receive it every week by mail, you may subscribe online.