Need advice on how to improve this function

[Fredrik Lundh]

Matthew Wilson wrote:

> I'd like to know ways to make it better (more efficient, able to deal
> with enormous-size arguments, etc).  How would I write this as a
> generator?

what makes you think that a generator would be the right tool for this 
task?  what's the use case?

(btw, generating "enormous-size" html pages strikes me as a rather 
pointless exercise...)

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