No, Perl compiles the regex once where it is defined with qr.
Caution: Contents may have been coded under pressure.

In reply to Re^2: Regex combining /(foo|bar)/ slower than using foreach (/foo/,/bar/) ??? by Roy Johnson
in thread Regex combining /(foo|bar)/ slower than using foreach (/foo/,/bar/) ???   by JollyJinx

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