in reply to Treating a scalar as an "input file"

Since Perl 5.8: 
open(my $fh,'+<', \$content);

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     s;;Just-me-not-h-Ni-m-P-Ni-lm-I-ar-O-Ni;;tr?IerONim-?HAcker ?d;print

In Section Seekers of Perl Wisdom