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From: lee <lee@yun.yagibdah.de>
To: help-gnu-emacs@gnu.org
Subject: Re: setting the mode of a buffer
Date: Sat, 15 Mar 2014 22:12:56 +0100	[thread overview]
Message-ID: <8761nfupwn.fsf@yun.yagibdah.de> (raw)
In-Reply-To: <jwvmwgu1e70.fsf-monnier+gmane.emacs.help@gnu.org> (Stefan Monnier's message of "Thu, 13 Mar 2014 08:26:24 -0400")

Stefan Monnier <monnier@iro.umontreal.ca> writes:

>> Reevaluating a defcustom will normally reset the value of the variable,
>> so there's no need to unload and reload the file. 
>
> C-h f defcustom
>
>    [...]
>    :initialize
>    	VALUE should be a function used to initialize the
>    	variable.  It takes two arguments, the symbol and value
>    	given in the `defcustom' call.  The default is
>    	`custom-initialize-reset'.
>    [...]
>
> C-h f custom-initialize-reset
>
>    [...]
>    The value is either the symbol's current value
>     (as obtained using the `:get' function), if any,
>    [...]
>
> So, no, re-evaluating a defcustom will typically leave the variable at its
> old value.
>
> M-: (progn (defcustom sm-t 1 "hhaha") (defcustom sm-t 2 "hhaha") sm-t) RET
>
> returns 1, not 2.  IOW, it works more like defvar than like defconst.

Awesome --- it means I just have to do it right and use functions to set
up things and don`t need to unload the mode anymore :)

I got this mode from somewhere quite a while ago, and I think it isn`t
done right.  There isn`t anything to disable it, either.


-- 
Knowledge is volatile and fluid.  Software is power.



  reply	other threads:[~2014-03-15 21:12 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <mailman.16657.1394156425.10748.help-gnu-emacs@gnu.org>
2014-03-07  8:47 ` setting the mode of a buffer Joost Kremers
2014-03-07 11:28   ` lee
     [not found]   ` <mailman.16664.1394193871.10748.help-gnu-emacs@gnu.org>
2014-03-12 22:19     ` Joost Kremers
2014-03-13 12:26       ` Stefan Monnier
2014-03-15 21:12         ` lee [this message]
2014-03-15 21:09       ` lee
     [not found]       ` <mailman.17152.1394713615.10748.help-gnu-emacs@gnu.org>
2014-03-17 11:17         ` Joost Kremers
2014-03-07  0:10 lee

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