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Answer: How to prevent metacharacter interpolation

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Q&A > strings > How to prevent metacharacter interpolation - Answer contributed by jmcnamara

Use either the quotemeta function:
$pattern = quotemeta( $pattern ); m/$pattern/;
or use the \Q and \E escape characters:
m/\Q$pattern\E/;
They do exactly the same thing; just one is a function and the other works inside regex patterns.

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