bug#58843: Print "decrypted" rot13 text is buffer is read-only

[Philip Kaludercic <philipk@posteo.net>]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Philip Kaludercic <philipk@posteo.net>
>> Cc: 58843@debbugs.gnu.org
>> Date: Fri, 28 Oct 2022 19:37:28 +0000
>> 
>> >> When someone sends you rot13'ed text but the buffer is read-only, it
>> >> seems the next best thing one can do is to print the decrypted text.  I
>> >> don't think it makes sense in general for `translate-region' to do the
>> >> same, so I just modified the code in rot13.el.
>> >
>> > Thanks, but I see no patch in your message.  I see a complete rot13.el
>> > file.
>> 
>> Oops, I must have selected the wrong file.
>
> Showing the result in the echo-area is a good idea, but echo-area is
> not really suitable for displaying arbitrarily long text.  How about
> popping a window with a temporary buffer instead?

Is there a way to re-use shell-command's behaviour of displaying short
messages in the echo area and longer messages in a separate buffer?
Popping up a buffer just for one or two lines can be annoying,
especially if the information is not something you want to keep around.

> This also needs a NEWS entry, I think.

Will do.