I don't think you can get exactly what you want out of 5.10's regex engine. (In Perl 6 you can get it, and PGE already implements that btw).

Apart from the stuff you tried there is also another hack which uses the experimental (?{...}) code assertions: 

our @matches;
m/(?>(something)(?{ push @matches, $^N }))/;

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In reply to Re: Getting a list of captures in Perl 5.10 by moritz
in thread Getting a list of captures in Perl 5.10 by amir_e_a

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