Use either the quotemeta function: 
    $pattern = quotemeta( $pattern );
    m/$pattern/;

[download]
or use the \Q and \E escape characters: 
    m/\Q$pattern\E/;

[download]
They do exactly the same thing; just one is a function and the other works inside regex patterns.

In reply to Re: How to prevent metacharacter interpolation by jmcnamara
in thread How to prevent metacharacter interpolation by Anonymous Monk

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