On Sat, Aug 23, 2008 at 02:27:10AM -0700, Carl Mäsak wrote:
> To match whatever the prior successful regex matched, use:
>
> / <prior> /
>
> r30466:
> $ ./perl6 -e 'my $s = "hello"; say $s ~~ /ll/; say $s ~~ /ll/' # works
> ll
> ll
> $ ./perl6 -e 'my $s = "hello"; say $s ~~ /ll/; say $s ~~ / <prior> /'
> # not implemented
> ll
> Unable to find regex 'prior'
> Null PMC access in invoke()
> [...]
>
> This feature request is perhaps more accurately classified as
> pertaining to PGE. Please re-tag as needed.
...correct -- C<< <prior> >> is not yet implemented. I'm not
certain if it belongs in PGE or in Rakudo... I'm guessing that
<prior> needs to refer to the "prior successful regex" in a
statement-level context, as opposed to a regex context. For
example, if we interpret S05 literally then in the regex
/ <foo> <prior> /
it's pretty clear that C<< <foo> >> is the prior successful regex
matched, and I think that's not what is intended by C<< <prior> >>.
(If it is what is intended, then C<< <prior> >> becomes much
simpler. :-)
Pm
