Assuming my regular expression comes to me from some outside source, is this the most elegant way to apply it to a string?: 
    # this came from somewhere else
    $regex    = "s/a/b/g";

    # now apply it to my string
    $string = "apple\n";
    eval("\$string =~ $regex");
    print $string;
I half expected this to work: 
    $string =~ $regex;
But in fact it seems to do nothing.

In reply to Exec'ing a regex stored in a scalar variable by brycen

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