> It would be nice if you could assume two spaces after a end of sentence
> with puncuation.  Generally I think that's correct grammar, although my
> grammar stinks so I could easily be wrong.  If you have to get into
> parsing incorrect grammar it becomes much more difficult.

There's an old typewriter convention to use two spaces, but I'd be
surprised if you can find a single printed English book that uses two
spaces after a sentence.

Paul.