GNU bug report logs - #3438
emacs 23.0.9{,3,4} dired mode bug(?)

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Message #45 received at 3438 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: "Drew Adams" <drew.adams <at> oracle.com>
Cc: "'Chong Yidong'" <cyd <at> stupidchicken.com>,
        "'T.V. Raman'" <tv.raman.tv <at> gmail.com>, <ams <at> gnu.org>, <eliz <at> gnu.org>,
        <stephen <at> xemacs.org>,
        "'Andrew W. Nosenko'" <andrew.w.nosenko <at> gmail.com>,
        <emacs-devel <at> gnu.org>, "'ishikawa'" <chiaki.ishikawa <at> ubin.jp>,
        <3438 <at> debbugs.gnu.org>
Subject: Re: please make line-move-visual nil
Date: Mon, 01 Jun 2009 18:33:33 -0400

>> I don't know if it's typical, but for most of those kinds of 
>> buffers you describe as "formatted", I think they should at
>> least set truncate-lines.

> No reason given. Why?

> Why should Buffer List or Info or Man output or grep output or C code
> or Java code buffers have `truncate-lines' turned on? Because newlines
> are intentionally positioned in such modes, they should use
> `truncate-lines'? Why would that be?

Just goes to show that I misunderstood your notion of "formatted".
I was thinking of buffers like pcl-cvs, VC, dired, buffer-list, ibuffer,
... Not info, not man, not Java, not C (not sure about grep, I like to
set it in grep, but I'm not sure if it's a good idea in general).

> Is this a diversion to some other topic? What's the relation to the
> topic at hand, which is `line-move-visual'?

When truncate-lines is non-nil, visual lines and logical lines coincide,
so line-move-visual doesn't make much difference any more (other than
for proportional text, that is).

> I proposed making the variable always buffer-local.

There would be no benefit to it:
  (set (make-local-variable <foo>) <bar>)
is the standard way for major modes to set variables.


        Stefan

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