Newbie question: Scanners?

AndrewO obrien.and... at
Fri May 11 17:03:49 UTC 2007


I'm pretty new to FSMs, so this is probably an obvious question: when
would you use a scanner over a standard machine?  Is it just for being
able to backtrack if you're going to have ambiguity?  Or is it deeper
than that?

Sorry if this has been covered elsewere.

Andrew O'Brien

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