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authorJSDurand <mmemmew@gmail.com>2023-01-11 23:47:26 +0800
committerJSDurand <mmemmew@gmail.com>2023-01-11 23:47:26 +0800
commit1a3d346f413325ed37848a6b2526e8e729269833 (patch)
treeab8812f8094d096c68aee53cf516e986cc9a273a /receme/Cargo.toml
parentf27d604d93ce583d4404e1874664e08382ea2f00 (diff)
Record left-linear expansion and forest format
Now the grammar will record the left-linear expansions when generating the nondeterministic finite automaton frmo its rules, and will record whether an edge in the nondeterministic finite automaton comes from a left-linear expansion. The latter is needed because while performing a chain-rule derivation, we do not need the left-linear expanded derivations in the "first layer". This might well have been the root cause of the bad performance of the previous version of this package. Also I have figured out how to properly generate and handle parse forests while manipulating the "chain-rule machine".
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