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On Wed, Jul 27, 2016 at 11:27:35AM -0300, Soni L. wrote: > Sean Conner's incomplete solution uses lpeg.Carg(1) which doesn't work > recursively. > <snip> The answer is lpeg.V and the table mode of lpeg.P. See http://www.inf.puc-rio.br/~roberto/lpeg/#grammar