[perl #129803] Regexp syntax check when variables contained with\Q...\E

Yes, the advantage is that of compile-time checking of regular expressions.  Speaking personally, I find this one of the advantages of Perl over other scripting languages, where a regexp syntax error is caught only at run time.  There is a small overhead associated with compiling the regular expression even though it may not in the end be used.

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via perlbug:  queue: perl5 status: open
https://rt.perl.org/Ticket/Display.html?id=129803

• [perl #129803] Regexp syntax check when variables contained with\Q...\E by Ed Avis
• Re: [perl #129803] Regexp syntax check when variables contained with\Q...\E by Abigail
• [perl #129803] Regexp syntax check when variables contained with\Q...\E by Ed Avis via RT