Re: character ranges in regular expressions

[Eric Blake]

On 10/04/2010 02:43 PM, Aharon Robbins wrote:
> > Which is why my proposal is that glibc consider:
> >
> > [A-Z] =>  match C locale; 26 letters, regardless of locale
> > [[.A.]-[.Z.]] =>  use collation rules, since we explicitly spelled things
> > with collation symbols (26 letters in POSIX local, 51 or even more in
> > other locales, since accented characters might be included in the
> > collation range), so that we aren't completely losing CEO behavior (if
> > someone seriously has a reason to use it)
> > [[:upper:]] =>  per POSIX rules in all locales
>
> This would be great.  In what must be close to (or more than) the
> 10 years since gawk started supporting locales, I have yet to meet
> anyone who thinks that [a-z] matching [A-Y] is a feature!

Great idea or not, Uli rejected it :(

------- Additional Comments From drepper dot fsp at gmail dot com 
2010-10-04 02:42 -------
This stays as it is.  If individual locale maintainers think the current 
behavior
is unintentionally as-is then they can change it.  But in general this 
is the
long-implemented behavior and won't be changed.  Collating elements are 
just not
really useful outside the POSIX locale or when the locale is guaranteed 
to stay
the same.

-- What |Removed |Added 
---------------------------------------------------------------------------- 
Status|NEW |RESOLVED Resolution| |WONTFIX 
http://sourceware.org/bugzilla/show_bug.cgi?id=12051

--
Eric Blake   address@hidden    +1-801-349-2682
Libvirt virtualization library http://libvirt.org