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Re: re-loading an elisp file


From: Tim X
Subject: Re: re-loading an elisp file
Date: Sun, 06 Mar 2011 11:05:43 +1100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux)

PJ Weisberg <address@hidden> writes:

> On Sat, Mar 5, 2011 at 2:17 PM, Tim X <address@hidden> wrote:
>
>> The way I usually deal with this is to either reset the variable in the
>> scratch buffer i.e.
>>
>> (setq var nil)
>>
>> then when I re-evaluate the buffer, var will be set if it is in a defvar
>> statement.
>
> Not true.  If the variable is set at all, even to nil, defvar respects
> it and doesn't overwrite it with the default.  Otherwise putting
> something like (setq flyspell-persistent-highlight nil) in your .emacs
> file would have no effect.
>
> The way to actually do that is:
>
> (makunbound 'var)
>

Your right - coincidentally, I was debugging a function that does some
work after doing a (if (null ....) and was not thinking clearly/more
generally. 

Tim

-- 
tcross (at) rapttech dot com dot au


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