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From: Ruijie Yu via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org>
To: Daniel Fleischer <danflscr@gmail.com>
Cc: help-gnu-emacs@gnu.org
Subject: Re: Diff between customized value
Date: Sat, 20 May 2023 20:55:16 +0800	[thread overview]
Message-ID: <EB081681-563D-4F1A-890B-C7069BF03998@netyu.xyz> (raw)
In-Reply-To: <m2ttw7mbaf.fsf@gmail.com>

On May 20, 2023, at 20:36, Daniel Fleischer <danflscr@gmail.com> wrote:
> 
> Hi,
> 
> How do I compare a customized variable value with its original value?
> When I `describe-variable' I get "value" and "original value", sometimes
> it's hard to see the difference. Is there a quick way to diff them?
> 
> 
> -- 
> Daniel Fleischer
> 
> 

I think you are looking for “sexp diff”.  I recall seeing one on [search engine], but it wasn’t feature complete.  Maybe you will have better luck this time. 

For completeness, here’s how you access the standard value programmatically:

    (customize--standard-value 'var-name)

Or take a look at the implementation of this function: it’s just `eval'’ing the sexp of one of the symbol’s properties. 

--
Best,


RY



  reply	other threads:[~2023-05-20 12:55 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-20 12:34 Diff between customized value Daniel Fleischer
2023-05-20 12:55 ` Ruijie Yu via Users list for the GNU Emacs text editor [this message]
2023-05-23 17:12   ` Marcin Borkowski

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