I am trying to match all URLs that end in ?C=N;O=D or ?C=M;O=A and return zero if the url matches. The following function is supposed to do that and all of the regex expressions work as expected except for that one. Any help is appreciated. 
sub test_url {
    my ( $uri, $server ) = @_;
    # return 1;  # Ok to index/spider
    # return 0;  # No, don't index or spider;

    # ignore any common image files
    return if $uri->path =~ /\.(gif|jpg|jpeg|png)?$/;

    # ignore directory listing sorting links
    # DOESN'T WORK AS EXPECTED
    return if $uri->path =~ /\?(C=N;O=D|C=M;O=A)?$/;

    # make sure that the path is limited to the docs path
    return $uri->path =~ m[^/starteam_area/];
}

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In reply to Difficult? regex by Anonymous Monk

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