From: "Drew Adams" <drew.adams@oracle.com>
To: "'Miles Bader'" <miles@gnu.org>,
"'David De La Harpe Golden'" <david@harpegolden.net>
Cc: emacs-devel@gnu.org
Subject: RE: shouldn't `delete-blank-lines' treat form-feed as whitespace?
Date: Wed, 3 Mar 2010 22:21:12 -0800 [thread overview]
Message-ID: <B3895CCCF8684F8EBD1261AE29A93BB4@us.oracle.com> (raw)
In-Reply-To: <87635cq2yy.fsf@catnip.gol.com>
> > While it's logically formally a whitespace class character,
> > I'm quite unconvinced it would "feel right" to me.
> > formfeed is usually put in much more rarely and with more
> > forethought than space/tab/newline.
>
> Yes I agree -- the formfeed character, when it is used, is
> for document structuring; it's not "whitespace" in the normal
> sense. It's sort of like the next-level above newline in a hierarchy.
>
> This suggests that perhaps there should be a command
> `delete-blank-pages', which would delete pages containing only blank
> lines (including the terminating formfeed).
>
> [Drew, wouldn't the latter command address your use?]
Dunno. I hadn't really thought that much about this all 'round. I was just
thinking that in some sense (contexts) \f-only lines are blank.
Obviously, for any given bit of code (context), one can easily delete the
whitespace or non-whitespace one wants - no special need for a ready-made
function to do that. So no, I don't think we need a `delete-blank-pages'
function.
And we probably don't need to have `delete-blank-lines' always treat \f (or
always \n or \t..., for that matter) as whitespace. I guess I was thinking
either (a) `delete-blank-lines' should generally delete \f-only lines also or
(b) we might add an optional arg to `delete-blank-lines', to tell it what we
mean by "blank" at the point of call.
I agree now that (a) is not a great idea. (b) is probably not very useful
either. Chalk this up to (piddling) thinking out loud.
next prev parent reply other threads:[~2010-03-04 6:21 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-28 20:44 shouldn't `delete-blank-lines' treat form-feed as whitespace? Drew Adams
2010-03-03 19:32 ` Juri Linkov
2010-03-03 19:54 ` Drew Adams
2010-03-04 4:28 ` Stefan Monnier
2010-03-05 8:48 ` Eli Zaretskii
2010-03-06 17:57 ` Juri Linkov
2010-03-06 18:56 ` Eli Zaretskii
2010-03-03 21:35 ` David De La Harpe Golden
2010-03-03 22:21 ` Drew Adams
2010-03-04 1:40 ` Miles Bader
2010-03-04 6:21 ` Drew Adams [this message]
[not found] <E1No0yT-0007vs-HZ@mail.fsf.org>
2010-03-06 22:34 ` Jonathan Yavner
2010-03-07 4:14 ` Eli Zaretskii
2010-03-07 4:34 ` Jonathan Yavner
2010-03-07 17:42 ` Eli Zaretskii
2010-03-07 18:11 ` Stephen J. Turnbull
2010-03-07 5:08 ` Stephen J. Turnbull
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