How to enable wrapping after C-x 3

How to enable wrapping after C-x 3

[ryofurue]

Hi emacs users,

I couldn't find this in the info or on the Internet.  By default,
long lines are wrapped and a tiny bent arrow is shown on
the right margin.  But, when you split the window by C-x 3
to have two windows side-by-side, long lines aren't wrapped.
Instead, tiny straight arrows are shown on the right margin,
and when you move the pointer (cursor) righward out of the
displayed region, the text scrolls horizontally.   How do you
have the original wrapping behavior in split windows?
How do you switch back and forth between the two
behaviors?  I use emacs 22.1 on the testing distribution
of Debian GNU/Linux.

Regards,
Ryo

Re: How to enable wrapping after C-x 3

[Peter Dyballa]

Am 27.07.2007 um 21:37 schrieb ryofurue:

> Instead, tiny straight arrows are shown on the right margin,
> and when you move the pointer (cursor) righward out of the
> displayed region, the text scrolls horizontally.

Could be the variables truncate-lines and truncate-partial-width- 
windows can help.

--
Greetings

   Pete

Behold the warranty ... the bold print giveth and the fine print  
taketh away.

Re: How to enable wrapping after C-x 3

[furue]

On Jul 27, 11:20 am, Peter Dyballa <Peter_Dyba...@Web.DE> wrote:
[. . .]
> Could be the variables truncate-lines and truncate-partial-width-
> windows can help.

Thank you for your help.  Indeed, truncate-partial-width-
windows did the trick.  It's t by default and that means
"truncate lines in all windows less than full frame wide"
(from the describe-variable help).  When I set it to nil,
lines are wrapped in split windows.  (The documentation
of truncate-lines says it's overriden by truncate-partial-
width-windows.  I don't know how these two variables
are meant to work together.)

Regards,
Ryo

Re: How to enable wrapping after C-x 3

[Peter Dyballa]

Am 30.07.2007 um 08:46 schrieb furue@hawaii.edu:

> (The documentation
> of truncate-lines says it's overriden by truncate-partial-
> width-windows.  I don't know how these two variables
> are meant to work together.)

I think this has historical reason. In GNU Emacsen 18 and 19 truncate- 
lines worked, AFAIR. Then GNU Emacs learned to split a frame into  
windows and finally a new concept was created which also introduced  
truncate-partial-width-windows. This sets a new general clipping  
default for all buffers, as truncate-lines did before. Now it's a  
buffer local variable, i.e. it only applies when set inside a  
particular buffer *and* then only when the user is deviating from the  
clipping default. So truncate-lines now can be set to truncate lines  
in some buffers in spite of the general user setting.

--
Greetings

   Pete

A common mistake that people make when trying to design something  
completely foolproof is to underestimate the ingenuity of complete  
fools.