I am writing a program which will read a bunch of substitution regular expressions from a configuration file and then apply them to the contents of other files. The problem I am running into is that the regexps don't seem to be compiling because they just aren't working. The following code illustrates what I mean:

#!/usr/bin/perl -w

$regex = "s/foo/bar/g";
$compiled = qr/$regex/;   # program works the same 
                          # whether I do this or not

$string = "foo fru foodyfoo";

$string =~ $compiled;
print "$string\n";      # no substitution! $string is still
                        # "foo fru foodyfoo" instead of
                        # "bar fru bardybar".
[download]

I know this is probably a stupid question but that's only because I am a stupid person. Sorry if my question makes you groan with disgust. I like chicken.

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