It looks like it behaves like a regex delimiter without the m. 

perl -MO=Deparse -e '$a = "foo"; print 1 if $a =~ "foo"'
$a = 'foo';
print 1 if $a =~ /foo/;

[download]
It will match a pattern, too, not just a literal string. print 1 if $a =~ "fo."; works fine.

Neat.

In reply to Re: Naked quotes work like m//? by friedo
in thread Naked quotes work like m//? by samtregar

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