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Re: rfc: (add-hook 'before-save-hook 'delete-trailing-whitespace)

From: Ludovic Courtès
Subject: Re: rfc: (add-hook 'before-save-hook 'delete-trailing-whitespace)
Date: Wed, 13 Jan 2010 11:53:01 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux)


Thien-Thi Nguyen <address@hidden> writes:

> The above form lives in my Emacs init flow, causing trailing whitespace to be
> deleted on `save-buffer' (C-x C-s).  For many projects (but not Guile) this
> DTRT, because trailing whitespace is not tolerated.  Jim Meyering gives a
> nice rationale in <>.
> I propose Guile also not tolerate trailing whitespace.  What do people think?

I agree, but adding such a hook would cause many gratuitous diffs, which
then blur VCS history (using ‘git blame’ becomes almost useless).

Instead, I’d suggest using ‘show-trailing-whitespace’.  Unfortunately,
that can’t be a per-file or per-directory local variable [0] so we can
just kindly ask people to add it to their ‘.emacs’.  :-)

What do you think?



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