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ocamlp3l and command line options: how?
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Luca de Alfaro
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Till Varoquaux
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Luca de Alfaro
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Maxence Guesdon
- Luca de Alfaro
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Maxence Guesdon
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Luca de Alfaro
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Till Varoquaux
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Date: | 2007-08-22 (06:21) |
From: | Luca de Alfaro <luca@d...> |
Subject: | Re: [Caml-list] ocamlp3l and command line options: how? |
Thanks! I tried it, but to no avail. I have not only options, but also command-line arguments: what I am trying to do is run something like foo -max_cores 4 -foovalue 3 file1 file1 file3 ... I am trying to run, in ocamlp3l, foo --p3lroot -max_cores 4 -foovalue 3 file1 file1 file3 ... but the program seems to get stuck forever with no computation happening... (I am compiling with the -thread mode). In the camlp3l manual, it does not say anything about what happens to command-line arguments; reading a bit of the ocamlp3l code it seems it expects "processors" to be specified (even in the thread mode? It would be a single processor... and just how are processors supposed to be specified? only in the root process, or in all of them? ). Is there some up-to-date information about command-line processing in ocamlp3l avaliable anywhere? Many thanks for the help, Luca On 8/21/07, Maxence Guesdon <maxence.guesdon@inria.fr> wrote: > > On Tue, 21 Aug 2007 18:30:52 -0700 > "Luca de Alfaro" <luca@dealfaro.org> wrote: > > > Thanks, but the problem seems to be the opposite one.... ocamlp3l also > > uses Args, and once I tell it to parse the command-line options, the > > options such as -rootp3l do not seem to work any more. The problem is > > not that I need to avoid -rootp3l; the problem seems to be that the > > ocamlp3l runtime doesn't see its own options any more... > > Hello, > > You can add options with the Command_options.add function. > Exemple: > > let my_options = [ > "-nl", Arg.Unit print_newline, "just print a newline" ; > (* other options ... *) > ] > in > List.iter (fun (o,spec,s) -> Command_options.add o spec s) my_options; > > They will be handled when ocamlp3l analyzes the command line. > > Maxence > > > > Luca > > > > On 8/21/07, Till Varoquaux <till.varoquaux@gmail.com> wrote: > > > > > > The Arg module use a cursor to know which argument it is is currently > > > parsing. You can therefor ignore the first argument like this: > > > > > > incr Arg.current > > > > > > before calling Arg.parse > > > > > > Cheers, > > > Till > > > > > > On 8/21/07, Luca de Alfaro <luca@dealfaro.org> wrote: > > > > I am trying to use ocamlp3l to parallelize some code. Using the > > > skeleton > > > > paradigm was a lot of fun and quite easy, but I am stumbling on the > > > easiest > > > > of issues... > > > > > > > > My code needs some command-line options, and I am processing them > with > > > the > > > > Arg package. The ocamlp3l manual does not anything about what to do > > > > for command-line options. > > > > > > > > I cannot simly run: > > > > > > > > ./foo -p3lroot -i blah -o boink > > > > > > > > because Arg tells me that it doesn't know what to do with -p3lroot. > > > > Fine, but, then how do I do? It's not really feasible for me to do > > > without > > > > command-line options... > > > > > > > > Many thanks in advance, > > > > > > > > Luca > > > > > > > > _______________________________________________ > > > > Caml-list mailing list. Subscription management: > > > > http://yquem.inria.fr/cgi-bin/mailman/listinfo/caml-list > > > > Archives: http://caml.inria.fr > > > > Beginner's list: > > > > http://groups.yahoo.com/group/ocaml_beginners > > > > Bug reports: http://caml.inria.fr/bin/caml-bugs > > > > > > > > > > > > > > > > > -- > > > http://till-varoquaux.blogspot.com/ > > > >