Thanks, Corion, for
- responding so quickly,
- pointing me to the relevant documentation, and
- providing the two code snippets which do the one (double interpolation by means of qr{\Q...\E}) or the other trick (single interpolation by means of quotemeta).

I'm a little astonished that obviously none of these two is the default behaviour of Perl. May I ask you (or any of the other Monks reading) to explain why exactly /$regexp/ is always false in my examples? I would really like to understand what's going on "inside" if I use neither qr{\Q...\E} nor quotemeta, i.e. for which value of $_ the condition would be true.

In reply to Re^2: variable interpolation in regexps by Locutus
in thread variable interpolation in regexps by Locutus

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