Maybe something like

if (m/<span class="([^"]+)"/i && defined($hash{$1}) {
    print;
}

[download]
this is untested, though

regards,
tomte

Update: I guess BrowserUK is right, so please reread the post with s/defined/exists/ :-)

In reply to Re: Reg-Ex, range, and Exists... by Tomte
in thread Reg-Ex, range, and Exists... by unwashed_masses

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