http://qs1969.pair.com?node_id=11140611


in reply to Re^2: Refer by relative way to regex group (eg. the last one)
in thread Refer by relative way to regex group (eg. the last one)

Looks like 5.10 according to perl5100delta:

Relative backreferences A new syntax "\g{N}" or "\gN" where "N" is a decimal integer a +llows a safer form of back-reference notation as well as allowing re +lative backreferences. This should make it easier to generate and emb +ed patterns that contain backreferences. See "Capture buffers" in perlre. (Yves Orton)

The cake is a lie.
The cake is a lie.
The cake is a lie.