From mboxrd@z Thu Jan  1 00:00:00 1970
Received: (from majordomo@localhost) by pauillac.inria.fr (8.7.6/8.7.3) id CAA21711; Sun, 13 Jan 2002 02:41:51 +0100 (MET)
X-Authentication-Warning: pauillac.inria.fr: majordomo set sender to owner-caml-list@pauillac.inria.fr using -f
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 CAA22046 for <caml-list@pauillac.inria.fr>; Sun, 13 Jan 2002 02:41:50 +0100 (MET)
Received: from verdot.inria.fr (verdot.inria.fr [128.93.11.7])
	by concorde.inria.fr (8.11.1/8.11.1) with ESMTP id g0D1foP24734
	for <caml-list@inria.fr>; Sun, 13 Jan 2002 02:41:50 +0100 (MET)
Received: (from ddr@localhost)
	by verdot.inria.fr (8.9.3/8.9.3) id CAA18057
	for caml-list@inria.fr; Sun, 13 Jan 2002 02:41:49 +0100
Date: Sun, 13 Jan 2002 02:41:49 +0100
From: Daniel de Rauglaudre <daniel.de_rauglaudre@inria.fr>
To: caml-list@inria.fr
Subject: Re: [Caml-list] camlp4: generating keyword on the fly
Message-ID: <20020113024149.A18030@verdot.inria.fr>
References: <005201c19bd1$a72e8b00$0b01a8c0@mit.edu>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
User-Agent: Mutt/1.2.5i
In-Reply-To: <005201c19bd1$a72e8b00$0b01a8c0@mit.edu>; from jehenrik@yahoo.com on Sat, Jan 12, 2002 at 08:28:49PM -0500
Sender: owner-caml-list@pauillac.inria.fr
Precedence: bulk

Hi,

On Sat, Jan 12, 2002 at 08:28:49PM -0500, Jeff Henrikson wrote:

> I want to be able to cook up keywords on the fly using camlp4, and
> it seems like I should be able to do it.

I am not sure what "cook up" means in English, but if you want to give
a string variable as keyword, write it between dollars in the EXTEND
statement:

  let make_one_item_entry entrysym (keyword : string) =
    let tmp = (Grammar.Entry.create Pcaml.gram entrysym) in
    EXTEND
      tmp: [ [ $keyword$ ] ]
      ;
    END;
    tmp;;

  Grammar.Entry.print (make_one_item_entry "happy" "birthday");;

This is an undocumented feature.

-- 
Daniel de RAUGLAUDRE
daniel.de_rauglaudre@inria.fr
http://cristal.inria.fr/~ddr/
-------------------
Bug reports: http://caml.inria.fr/bin/caml-bugs  FAQ: http://caml.inria.fr/FAQ/
To unsubscribe, mail caml-list-request@inria.fr  Archives: http://caml.inria.fr