Dear Monks,
from what I've thought I knew about Perl's rules for variable interpolation I would have expected that after setting

  my $regexp = 'some$thing';

the condition /$regexp/ is true if $_ contains the string 'some$thing' (because by default only one level of interpolation is performed, and thus /$regexp/ should be equivalent to /some\$thing/) - but it isn't!

I also defined

  my $thing = 'THING';

and then tried if /$regexp/ was true for any $_ in ( 'someTHING', 'some', "some\n" ) but it still kept being false.

Is there any value for $_ at all such that /$regexp/ (with $regexp defined as above) becomes true, and why / why not?

Humble greetings,
Locutus

In reply to variable interpolation in regexps by Locutus

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