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2006 Nov 01
2
[LLVMdev] LLVM / C--
...s region of the input. In general, by using the GLR algorithm, Elkhound avoids the difficulty of trying to make a language grammar fit the LALR(1) restrictions. http://en.wikipedia.org/wiki/GLR_parser Advantages When implemented carefully, the GLR algorithm has the same time complexity as the CYK algorithm and Earley algorithm -- O(n3). However, GLR carries two additional important advantages: The time required to run the algorithm is proportional to the degree of nondeterminism in the grammar -- on deterministic grammars the GLR algorithm runs in O(n) time (this is not true of the Earle...