From: Alan Schmitt <alan.schmitt@polytechnique.org>
To: David MENTRE <dmentre@linux-france.org>
Cc: Nicolas Ojeda Bar <n.oje.bar@gmail.com>, caml-list@inria.fr
Subject: Re: [Caml-list] How can I change the margin size in the toplevel?
Date: Wed, 23 Sep 2015 18:05:21 +0200 [thread overview]
Message-ID: <m2y4fxjf3y.fsf@charm-ecran.irisa.fr> (raw)
In-Reply-To: <m2eghpl3yp.fsf@charm-ecran.irisa.fr> (Alan Schmitt's message of "Wed, 23 Sep 2015 14:23:10 +0200")
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On 2015-09-23 14:23, Alan Schmitt <alan.schmitt@polytechnique.org> writes:
> Is there a guide somewhere that explains how to create a new opam switch
> From local (modified) ocaml sources?
A very helpful colleague gave me a crash course on nix and I was able to
compile a patched version (where I tweaked error_of_printer in
parsing/location.ml as follows):
#+begin_src ocaml
let error_of_printer loc print x =
let buf = Buffer.create 64 in
let ppf = Format.formatter_of_buffer buf in
Format.pp_set_margin ppf (Format.pp_get_margin !formatter_for_warnings ());
pp_print_string ppf "Error: ";
print ppf x;
pp_print_flush ppf ();
let msg = Buffer.contents buf in
errorf ~loc "%s" msg
#+end_src
This works great: I can now change the margin of the error messages
simply by doing a "Format.set_margin" in the toplevel.
Alan
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next prev parent reply other threads:[~2015-09-23 16:05 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-21 14:20 Alan Schmitt
2015-09-22 17:14 ` Emilio Jesús Gallego Arias
2015-09-23 6:48 ` Alan Schmitt
2015-09-23 7:26 ` David MENTRE
2015-09-23 12:23 ` Alan Schmitt
2015-09-23 16:05 ` Alan Schmitt [this message]
2015-09-23 16:39 ` Gabriel Scherer
2015-09-23 10:25 ` Emilio Jesús Gallego Arias
2015-09-23 11:34 ` Gerd Stolpmann
2015-09-23 12:16 ` Alan Schmitt
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