If you call the regex in scalar context (ex: as a conditional) /g will make it possible to work one match at a time, allowing you to have finer control over what you do with the captures. 

#use Data::Dumper;
my %res;
while (/(fo.)(.*?)(ba.)/g)
{
  $res{$&} = [ @-[1..3] ];
}
print Dumper \%res;

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Edit: the slice should be on indices 1..3, not 0..2.

In reply to Re: Behavior of /g when there are capture groups by Eily
in thread Behavior of /g when there are capture groups by ExReg

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