Self-referential QR code / JAPH

[davido]

A proper JAPH this is not. And there's not really any obfu here but I thought this was a fun abuse of QR codes and Perl:

use Term::QRCode;for(DATA){shift&&do{seek$_,0,undef$/};print Term::QRC
+ode->new->plot(<$_>)}
__DATA__
Just another Perl hacker,

You'll need to install Term::QRCode, which will fail unless you have libqrencode-dev installed (Debian, Ubuntu).

Usage:

$ perl qrjaph self # Generate a QR that contains this script as its en
+coded text.
$ perl qrjaph      # Generate a QR that contains just the text Just an
+other Perl hacker,

The output isn't something I can copy/paste here, so you'll either have to give it a try or take my word for it. ;) This constitutes a violation of several of the rules of JAPH scripts: It relies on several non-Perl-core libraries. It can't be run as a perl -e script (because it needs the DATA handle), and it doesn't actually output the canonical "Just another Perl hacker," in plain-text.