David Majda 6ce97457bf Fix left recursion detection ... So far, left recursion detector assumed that left recursion occurs only when the recursive rule is at the very left-hand side of rule's expression: start = start This didn't catch cases like this: start = "a"? start In general, if a rule reference can be reached without consuming any input, it can lead to left recursion. This commit fixes the detector to consider that. Fixes #190.		2015-04-01 10:10:51 +02:00
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passes	Fix left recursion detection	2015-04-01 10:10:51 +02:00