That's because of the /g, it remembers where the match happend last time and tries to match again after it.

map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]

In reply to Re^3: Return value from positive look behind by choroba
in thread Return value from positive look behind by bestresearch2

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