Revert incorrect optimizations to JSGF compiler (fixes #53) #305
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Original commit was cmusphinx/sphinxbase@e59cac4 The resulting FSGs are, yes, quite bad, but the optimization was incorrect, and the proposed fix for it did not actually fix the problem, but made the code more complex. In general I think the Knuth quote about premature optimization is just an excuse for people to write bad code, but in this case it seems pertinent
The change I reverted was *partially* correct as it noted that a right-recursive rule cannot reach the final state on its own, so put this change back
with the side effect that it verifies the correctness of the tests in test-sphinx_jsgf2fsg.sh
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Also verify the correctness of the test grammars, with a new utility function that does this.
The optimization was, in theory, a good idea, perhaps it can be done correctly, now that we can properly verify the correctness of the resulting grammars.