"What does the quotemeta do...?"
That's thoroughly explained in the docs. Ask your Teddy Bear ... uh, no, I mean, ask your machine's command line interface (using perldoc perlop [look for "Quote and Quote-like Operators"] or ask your browser using a search engine for http://perldoc.perl.org/functions/quotemeta.html which will tell you all about it.
We value sell-help self-help very highly here in the Monastery. You'll also find interesting (and helpful) information about site's expectations of those asking questions at PerlMonks FAQ section.
Edited: Typo fixed. TY soonix for catching what I should have.
In reply to Re^3: Question about parentheses in regex
by ww
in thread Question about parentheses in regex
by Von_Halen
| For: | Use: | ||
| & | & | ||
| < | < | ||
| > | > | ||
| [ | [ | ||
| ] | ] |