[PATCH] churn: obtain current terminal width if possible

[Alexis S. L. Carvalho]

Thus spake Christian Ebert:
> * Alexis S. L. Carvalho on Thursday, July 19, 2007 at 09:30:47 -0300
> > This should really go into some kind of get_tty_width function so that
> > it's only called when needed.
> 
> Oops, that was my first intention, then thought it will always
> get called (which it does, when churn is called), but w/o
> function it's called when loading the extension w/o actually
> running it. Right?

yup

> > And it'd be nice to respect $COLUMNS as well.
> 
> Ah, does this work in other architectures? Here, on MacOS, I can
> only do:
> 
> $ echo $COLUMNS
> 80
> 
> but:
> 
> $ env | grep COLUMNS
> 
> gives nothing. Similarly:

Hmm... true, but here (debian), if I "export COLUMNS", it becomes
visible to child processes, and it's even updated when the term size
changes.  Both with bash and zsh.  So I guess it can be useful...

Alexis