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Perl warns here,
$ echo o|perl -plwe 's/./@@@@$&/'
Possible unintended interpolation of @$ in string at -e line 1.
@@@&
Perhaps it should also warn here:
$ echo o|perl -plwe 's/(.)/@@@@$1/'
@@@

If so please submit a bug for me, because my address is blocked from
perl.org.

On Apr 28, 7:38*pm, jida...@jidanni.org wrote:
> Perl warns here,
> $ echo o|perl -plwe 's/./@@@@$&/'
^^^^^
-Mdiagnostics -plwe

> Possible unintended interpolation of @$ in string at -e line 1.
> @@@&

--
Charles DeRykus

On Apr 28, 10:38 pm, jida...@jidanni.org wrote:
> Perl warns here,
> $ echo o|perl -plwe 's/./@@@@$&/'
> Possible unintended interpolation of @$ in string at -e line 1.
> @@@&
> Perhaps it should also warn here:
> $ echo o|perl -plwe 's/(.)/@@@@$1/'
> @@@
>
> If so please submit a bug for me, because my address is blocked from
> perl.org.

I don't know how perl could be expected to know what was intended.
@$ seems to be cromulent.

perl -we '$$[0]="That is"; $$[1]="messed up"; print join " ",@$'
That is messed up