It seems that, at some point, it was permissible to write $foo{bar, frog}, which was understood by Perl to mean $foo{'bar,frog'},

$foo{bar, frog} is seen by perl as two barewords separated by a comma, i.e. $foo{'bar', 'frog'}.

Naked blocks are fun! -- Randal L. Schwartz, Perl hacker

In reply to Re: Regexp::Common and "multidimensional hash lookup disabled" by jwkrahn
in thread Regexp::Common and "multidimensional hash lookup disabled" (v5.36+) by ibm1620

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