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

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Re^3: Refer by relative way to regex group (eg. the last one) by Fletch (Bishop) on Jan 19, 2022 at 14:41 UTC
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)` [download] The cake is a lie. The cake is a lie. The cake is a lie.	[reply] [d/l]
Re^3: Refer by relative way to regex group (eg. the last one) by Corion (Patriarch) on Jan 19, 2022 at 14:40 UTC
Grepping the `perldelta*` files for \\g lists perl5100delta, so likely the feature was introduced with Perl 5.10.0.	[reply] [d/l]
Re^3: Refer by relative way to regex group (eg. the last one) by choroba (Cardinal) on Jan 19, 2022 at 14:44 UTC
Syntax::Construct to the rescue :-) `map{substr$_->[0],$_->[1]\|\|0,1}[\\|\|{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^ARGV,3]`	[reply] [d/l]
Re^3: Refer by relative way to regex group (eg. the last one) by LanX (Saint) on Jan 19, 2022 at 14:35 UTC
> When did it come about? I don't know, but the OP wants $vars which can be used inside Perl code. (which is also documented in multiple ways) Cheers Rolf _{(addicted to the Perl Programming Language :) Wikisyntax for the Monastery} update see Re^2: Refer by relative way to regex group (eg. the last one)	[reply]
Re^3: Refer by relative way to regex group (eg. the last one) by Anonymous Monk on Jan 19, 2022 at 16:00 UTC
Perl 5.9.5 if you want to be picky.	[reply]

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