It's not possible to do in a s/// using the method you requested. If it was, the following would print a series of 'a's 
>perl -le"$|=1; ($_='abc') =~ s/\G(.)/print(pos(),' ',$1); pos()=0/eg"
0 a
1 b
2 c

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In reply to Re: Resetting pos() within a RegEx? by ikegami
in thread Resetting pos() within a RegEx? by LanX

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