Re: Hey Ives....

On Tue, 4 Sep 2007 17:43:58 +0200, "Rafael
Garcia-Suarez"
<rgarciasuarezgmail.com> wrote:

> On 04/09/07, Richard Foley <Richard.Foleyrfi.net> wrote:
> > Yves, sorry to hang off another email, but the
question of g0 came up in
> > Vienna too, and I don't recall the answer, and I
thought the subject was
> > vaguely related...
> 
> This one has been fixed afterwards, I believe:
> $ bleadperl -e '/g0/'
> Reference to invalid group 0 in regex; marked by <--
HERE in m/g <--
> HERE 0/ at -e line 1.

IIRC g was suggested to be the complete regex, so you
would not need
the outmost paren-pair


-- 
H.Merijn Brand         Amsterdam Perl Mongers (http://amsterdam.pm.org/
)
using & porting perl 5.6.2, 5.8.x, 5.9.x   on HP-UX
10.20, 11.00, 11.11,
& 11.23, SuSE 10.0 & 10.2, AIX 4.3 & 5.2, and
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velooper.com/hpux/            http://www.test-smoke.org
                        http
://www.goldmark.org/jeff/stupid-disclaimers/

On Tue, Sep 04, 2007 at 09:57:44PM +0000, H.Merijn Brand
wrote:
> On Tue, 4 Sep 2007 17:43:58 +0200, "Rafael
Garcia-Suarez"
> <rgarciasuarezgmail.com> wrote:
> 
> > On 04/09/07, Richard Foley <Richard.Foleyrfi.net> wrote:
> > > Yves, sorry to hang off another email, but
the question of g0 came up in
> > > Vienna too, and I don't recall the answer,
and I thought the subject was
> > > vaguely related...
> > 
> > This one has been fixed afterwards, I believe:
> > $ bleadperl -e '/g0/'
> > Reference to invalid group 0 in regex; marked by
<-- HERE in m/g <--
> > HERE 0/ at -e line 1.
> 
> IIRC g was suggested to be the complete regex, so
you would not need
> the outmost paren-pair


That doesn't make any sense.

g{} are backreferences, they indicate parts of the *source
string* have
to be repeated. For repeat of parts of the *pattern*, we
have the (?&...)
syntax.

And you certainly cannot mean that the entire match has to
be repeated
inside itself - strings aren't fractals.



Abigail