On Mon, Jul 07, 2003 at 01:00:22PM +0100, Rob Dixon wrote:
> Steve Grazzini wrote:
> > On Sun, Jul 06, 2003 at 11:20:03AM -0000, mark sony wrote:
> > > $_ = "The brown fox jumps over the lazy dog";
> > > /the (\S+)(?{ $color = $^N }) (\S+)(?{ $animal = $^N })/i;
> >
> > $^N is new in 5.8.0.
> > In this case you can probably use $+ instead.
>
> $+ will return only the last captured string so you would
> need to process your text in two passes to get this result.
$+ and $^N are updated every time a set of parens matches, so
code blocks inside the regex will see whatever the "last match"
was at that moment.
$_ = "abcde";
m{ ((.) (?{ print $+ }))* }x; # prints "a","b","c"...
m{ ((.*) (?{ print $+ }))* a }x; # prints lots of stuff
--
Steve
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