From: phillip.lord@russet.org.uk (Phillip Lord)
To: Barry Margolin <barmar@alum.mit.edu>
Cc: help-gnu-emacs@gnu.org
Subject: Re: hijack C function, use it transparently with in-between layer
Date: Mon, 06 Jun 2016 12:30:34 +0100 [thread overview]
Message-ID: <87bn3eftb9.fsf@russet.org.uk> (raw)
In-Reply-To: <barmar-5848D2.03324206062016@88-209-239-213.giganet.hu> (Barry Margolin's message of "Mon, 06 Jun 2016 03:32:42 -0400")
Barry Margolin <barmar@alum.mit.edu> writes:
> In article <868tyjnghn.fsf@student.uu.se>,
> Emanuel Berg <embe8573@student.uu.se> wrote:
>
>> The truth is down there!
>>
>> (defvar old-message)
>> (fset 'old-message (symbol-function #'message))
>>
>> (defun message (format-string &rest args)
>> (unless (member format-string
>> '(
>> "It was just another system of control."
>> "Mark set"
>> ))
>> (apply `(old-message ,format-string ,@args) )))
>>
>> ;; test:
>> ;;
>> ;; (message "%s - %s" "1" "2")
>> ;; (message "Break on thru to the other side.")
>> ;; (message "It was just another system of control.")
>> ;; (message "Mark set")
>
> Shouldn't you do this using advice?
Advice only works partially (as I expect this will). The message
function is also called directly in the C layer. Advice will not capture
those cases.
Phil
next prev parent reply other threads:[~2016-06-06 11:30 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-06 3:28 hijack C function, use it transparently with in-between layer Emanuel Berg
2016-06-06 3:46 ` Marcin Borkowski
2016-06-06 7:32 ` Barry Margolin
2016-06-06 10:55 ` Emanuel Berg
2016-06-06 11:30 ` Phillip Lord [this message]
[not found] ` <mailman.967.1465212644.1216.help-gnu-emacs@gnu.org>
2016-06-06 11:51 ` Emanuel Berg
2016-06-06 13:12 ` Stefan Monnier
[not found] ` <mailman.971.1465218784.1216.help-gnu-emacs@gnu.org>
2016-06-06 13:30 ` Emanuel Berg
2016-06-06 13:58 ` Stefan Monnier
[not found] ` <mailman.974.1465221532.1216.help-gnu-emacs@gnu.org>
2016-06-06 14:42 ` Barry Margolin
2016-06-06 14:58 ` Stefan Monnier
2016-06-06 23:03 ` Emanuel Berg
2016-06-06 23:44 ` Barry Margolin
2016-06-07 1:12 ` Emanuel Berg
2016-06-06 23:49 ` John Mastro
[not found] ` <mailman.1031.1465256987.1216.help-gnu-emacs@gnu.org>
2016-06-07 1:08 ` Emanuel Berg
2016-06-07 11:12 ` Phillip Lord
2016-06-07 15:22 ` Eli Zaretskii
2016-06-07 17:05 ` Emanuel Berg
[not found] ` <mailman.1050.1465298004.1216.help-gnu-emacs@gnu.org>
2016-06-07 12:00 ` Emanuel Berg
2016-06-06 14:40 ` Barry Margolin
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