
Keep It Simple, Stupid

How can I quote a variable to use in a regexp?

by faq_monk (Initiate)
on Oct 08, 1999 at 00:25 UTC ( #663=perlfaq nodetype: print w/ replies, xml ) Need Help??

Current Perl documentation can be found at



    $string = "to die?";
    $lhs = "die?";
    $rhs = "sleep no more";

    $string =~ s/Q$lhs/$rhs/;
    # $string is now "to sleep no more"

Without the Q, the regexp would also spuriously match ``di''.

Log In?

What's my password?
Create A New User
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others pondering the Monastery: (6)
As of 2014-03-16 13:13 GMT
Find Nodes?
    Voting Booth?

    Have you used a cryptocurrency?

    Results (326 votes), past polls