bug#65380: [PATCH] Add command to copy contents in a diff-mode buffer

[Eli Zaretskii <eliz@gnu.org>]

> From: Philip Kaludercic <philipk@posteo.net>
> Cc: juri@linkov.net,  65380@debbugs.gnu.org
> Date: Tue, 22 Aug 2023 11:06:28 +0000
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> From: Philip Kaludercic <philipk@posteo.net>
> >> Cc: Juri Linkov <juri@linkov.net>,  65380@debbugs.gnu.org
> >> Date: Sun, 20 Aug 2023 18:24:53 +0000
> >> 
> >> Eli Zaretskii <eliz@gnu.org> writes:
> >> 
> >> >> From: Juri Linkov <juri@linkov.net>
> >> >> Cc: Philip Kaludercic <philipk@posteo.net>,  65380@debbugs.gnu.org
> >> >> Date: Sun, 20 Aug 2023 19:30:03 +0300
> >> >> 
> >> >> Regarding the implementation, there is the function
> >> >> 'diff-hunk-text', but it's limited to one hunk only.
> >> >
> >> > So is the proposed new function, isn't it?
> >> 
> >> No, the current proposal doesn't have any special handling for text
> >> between hunks.
> >
> > AFAIU, the function you proposed removes the first character from each
> > line in the region, so how will it handle multiple hunks?
> >
> > Or maybe I misunderstood what you meant by "No"?
> 
> The command does not error when the region selects more than just a
> sub-region of a hunk, but it doesn't do anything useful either.

Then how about making a command that is basically a wrapper around
diff-hunk-text, and allows to copy bodies of N hunks, given an
argument of N?  Wouldn't that be more useful?