Hi, my questions is, why not use the element construction algorithm? The Thomson Algorithm creates an epsilon-NFA which needs quite a lot of memory. The element construction creates an NFA directly and therefor has fewer states. Well, this is only interesting in the scanner creation which is not so important than the scanner itself, but it can reduce the memory footprint of generator. It's a pity i can't find a url for the algorithmdescription, maybe i even have the wrong naming of it. I have only read it in script Compiler Construction at the University.
cu, Ronny
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