You suggested that split wouldn't work if there was a dot in the extension. It just might, in fact, still work using split...and adding a join. 
@dissection = split /\./, $filename;
$ext = pop(@dissection);
$id = join(".",@dissection);

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- Infinityandbeyond

In reply to The (split) answer by infinityandbeyond
in thread Probably silly regex question / not so silly regex question by theorbtwo

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