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bug#25303: 24.5; `write-region' enhancement request for MUSTBENEW parame
From: |
Drew Adams |
Subject: |
bug#25303: 24.5; `write-region' enhancement request for MUSTBENEW parameter |
Date: |
Sat, 27 Jul 2019 10:02:49 -0700 (PDT) |
> > If parameter MUSTBENEW is not `excl' and is non-nil then the user is
> > prompted to confirm overwriting. The enhancement would be that if
> > the value is a string then use that as the confirmation prompt.
> >
> > The would allow for more specific prompting, such as saying something
> > more than that the file exists - something that can help the user decide
> > whether to overwrite.
>
> I think that does make some sense, but do you have a specific scenario
> in mind? What kind of prompt would help the user more than the
> standard prompt here?
I might have had a specific scenario in mind when
I filed the request 3 years ago, but if so it's
forgotten by now. ;-) Especially since there's
no real workaround to realize the requested
behavior easily.
> > This is pretty much backward compatible:
> > In existing code it is likely that few,
> > if any, non-nil and non-`excl' arg values
> > are strings. And in the case of any that are,
> > the use of the string as a prompt will make
> > things obvious to a maintainer, if not
> > immediately to the user.
>
> It's a slightly non-compatible change, but I think it sounds unlikely
> to be bothersome (as you point out).
>
> Anybody else have an opinion here?