[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: regular expressions
David Tolpin: > Bob Foster: > > > Why isn't it done? > > > > Good question. It should be. Of course, the notation suggests to most > > compsci people that recursion will be permitted, i.e., that this is a > > context-free instead of regular grammar, and that's probably not what > > you intended. > > The technique to detect recursions and stop context-grammars early is > just concatenate. If there is a recursion, the Scheme interpreter > will run out of space and the validator will immediately report an error > in the expression. Bob, thank you; after thinking about it again, I've added the explicit check for recursion, it is cleaner this way. And just two lines of code. David
|
PURCHASE STYLUS STUDIO ONLINE TODAY!Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced! Download The World's Best XML IDE!Accelerate XML development with our award-winning XML IDE - Download a free trial today! Subscribe in XML format
|