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A bottom-up parsing technique, used for parsing most context-free grammars is LR(k): L indicates that the input is parsed from left to right, R indicates that in the parsing process a rightmost derivation is produced; the number k indicates how many lookahead symbols are used. An LR parsing scheme consists of: input, output, stack, a parsing program and a ...


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In the same way that DFAs are the counterparts for regular expressions and PDAs are the counterparts for context free languages , the counterpart for context sensitive languages are LBAs (linear bounded Automaton) That is to say that a language is context sensitive iff some LBA recognises it But what are LBAs ? Hopefully you have an idea about what Turing ...


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