GNU bug report logs - #76313
New function `replace-region`

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Message #53 received at 76313 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: 76313 <at> debbugs.gnu.org
Subject: Re: bug#76313: New function `replace-region`
Date: Tue, 18 Feb 2025 21:30:33 +0200

> From: Stefan Monnier <monnier <at> iro.umontreal.ca>
> Cc: 76313 <at> debbugs.gnu.org
> Date: Tue, 18 Feb 2025 12:01:38 -0500
> 
> >> `replace-region-contents` is a bad API
> > Why is it bad?
> 
> - REPLACE-FN is never useful, it's always just as easy (and marginally
>   more efficient) to compute the replacement beforehand.
> - It defaults to being expensive, whereas most potential users of
>   `replace-region` currently use insert+delete-region and thus would
>   need to pass an extra "cheaply" argument for fear of being impacted by
>   a slowdown.
> - MAX-COSTS is ill-defined.
> 
> Also, personally I must say that I'd be happier calling `replace-region`
> than `replace-region-contents`, just because it's shorter.
> 
> Given that `replace-region-contents` is fairly new and very little used,
> I don't see much gain in trying to fit within its API.

So basically, you reject every attempt to compromise that I could come
up with, and keep pressing for your original proposal, whose downsides
I prefer not to sustain.  Are you really saying that your way is the
only way? why?

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