Re: lowercase letters for binaries

[Julian Foad]

Charles Levert wrote:
> * On Monday 2005-11-07 at 21:40:49 +0100, Benno Schulenberg wrote:
>
> > So maybe the 
> > following is a better text for 'info grep usage':
> >
> > 13. Why is this back-reference failing?
> >
> >        echo "ba" | egrep '(a)\1|b\1'
> >
> >    This gives no output, because the first alternate '(a)\1' does
> >    not match, as there is no "aa" in the input, so the '\1' in the
> >    second alternate has nothing to refer back to, meaning it will
> >    never match anything.  (The second alternate in this example
> >    can only match if the first alternate has matched -- making
> >    the second one superfluous.)
>
> I like it.

Me too, so I've committed it, along with your tweak to example 14.  Thanks, 
Benno.

- Julian