Re: Proposal: diff-remove-trailing-blanks

[Vinicius Jose Latorre <viniciusjl@ig.com.br>]

Dan Nicolaescu wrote:
> Óscar Fuentes <ofv@wanadoo.es> writes:
>
>   > Some time ago Steffan suggested that this function could be a worth
>   > addition to diff-mode. If this is ok, I need to sign the copyright
>   > papers.
>
> This seems like a good idea.  It would be even nicer if something like
> this could be combined with whitespace-mode to clearly show trailing
> whitespace.  That way the user knows he has a problem.
>   

Well, whitespace-mode shows trailing blanks.
See whitespace-style variable.

It also reports that a buffer has a trailing blanks, besides other bogus 
whitespaces.
See whitespace-report function.

It also cleans trailing blanks.
See whitespace-cleanup function.

See also whitespace-action variable for some automatic actions that can 
be taken when a buffer is visited, killed or written.

> (I currently do (setq show-trailing-whitespace t) in a hook for
> diff-mode-hook, but it is not good enough, it highlights things that are
> not relevant in a diff)

What relevant things would you like to see (or to be done) in a diff buffer?