From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Original-To: caml-list@yquem.inria.fr Delivered-To: caml-list@yquem.inria.fr Received: from nez-perce.inria.fr (nez-perce.inria.fr [192.93.2.78]) by yquem.inria.fr (Postfix) with ESMTP id BE417BB83 for ; Fri, 21 Jul 2006 10:59:52 +0200 (CEST) Received: from pauillac.inria.fr (pauillac.inria.fr [128.93.11.35]) by nez-perce.inria.fr (8.13.6/8.13.6) with ESMTP id k6L8xqR3029854 for ; Fri, 21 Jul 2006 10:59:52 +0200 Received: from concorde.inria.fr (concorde.inria.fr [192.93.2.39]) by pauillac.inria.fr (8.7.6/8.7.3) with ESMTP id KAA17090 for ; Fri, 21 Jul 2006 10:59:51 +0200 (MET DST) Received: from ext.lri.fr (ext.lri.fr [129.175.15.4]) by concorde.inria.fr (8.13.6/8.13.6) with ESMTP id k6L8xpH8014863 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Fri, 21 Jul 2006 10:59:51 +0200 Received: from smtp.lri.fr (serveur3-5 [129.175.3.5]) by ext.lri.fr (Postfix) with ESMTP id EEDF8202163; Fri, 21 Jul 2006 10:59:48 +0200 (CEST) Received: from pc9-152.lri.fr (pc9-152 [129.175.9.152]) by smtp.lri.fr (Postfix) with ESMTP id 90904CED98; Fri, 21 Jul 2006 10:59:47 +0200 (CEST) Received: from filliatr by pc9-152.lri.fr with local (Exim 4.60) (envelope-from ) id 1G3qrQ-0001I6-Iq; Fri, 21 Jul 2006 10:59:52 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Message-ID: <17600.38792.566702.750339@pc9-152.lri.fr> Date: Fri, 21 Jul 2006 10:59:52 +0200 To: "=?ISO-8859-1?Q?Tiago_Ant=E3o?=" Cc: caml-list@inria.fr Subject: Re: [Caml-list] Logging In-Reply-To: <6d941f120607200220p5f09b8cby15c2f1c1669abf6b@mail.gmail.com> References: <6d941f120607200220p5f09b8cby15c2f1c1669abf6b@mail.gmail.com> X-Mailer: VM 7.19 under Emacs 21.4.1 From: Jean-Christophe Filliatre X-Virus-Scanned: by amavisd-new at lri.fr X-Miltered: at nez-perce with ID 44C09788.000 by Joe's j-chkmail (http://j-chkmail.ensmp.fr)! X-Miltered: at concorde with ID 44C09787.000 by Joe's j-chkmail (http://j-chkmail.ensmp.fr)! X-Spam: no; 0.00; filliatre:01 filliatr:01 lri:01 debugging:01 debugging:01 fprintf:01 val:01 printf:01 datatypes:01 writes:01 caml-list:01 caml:02 caml:02 unit:03 flush:03 X-Spam-Checker-Version: SpamAssassin 3.0.3 (2005-04-27) on yquem.inria.fr X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=disabled version=3.0.3 Tiago Antão writes: > > Are there any best practices/libraries regarding logging in CAML? My > main use for it will be debugging (I know there are debugging > facilities in CAML, but I am very used to using log as a debug tool - > think Log4J for instance)... I'm also using logging as a debug facility sometimes, and I use a printf-like function for this purpose, as follows: ====================================================================== let log_ch = open_out "logfile" let log = Format.formatter_of_out_channel log_ch let () = at_exit (fun () -> Format.pp_print_flush log (); close_out log_ch) let lprintf s = Format.fprintf log s ====================================================================== which provides a function lprintf of type ====================================================================== val lprintf : ('a, Format.formatter, unit) format -> 'a = ====================================================================== to be used like Format.printf. This is surely not the best way to do, and not very powerful, but at least it is convenient to use when you already have Format-like printers for your datatypes (using %a). Hope this helps, -- Jean-Christophe