rep.git - Parser generator for Emacs written in Rust

Age	Commit message (Collapse)	Author
2023-01-20	chain: a prototype is added.	JSDurand
	I have an ostensibly working prototype now. Further tests are needed to make sure that the algorithm meets the time complexity requirement, though.
2023-01-11	Record left-linear expansion and forest format	JSDurand
	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".
2023-01-05	singly labelled graphs	JSDurand
	Now I have a new type of labelled graphs, which can index vertices by labels, but not index edges by labels. The biggest difference is that I do not have to keep a hashmap of edge targets by labels, and I do not have to guard against the duplication of nodes with the same set of edges. I guard against nodes with the same label, though. Also, in this graph, both vertices and edges have one label at a time, whereas in the previous labelled graph there can be a multitude of edges between the same source and target nodes, but with different labels. Now it remains to test this type of graphs, and to think through how we attach forest fragments to nondeterministic finite automata edges, and how to join forest fragments together while skipping nullable edges, in order to finish the "compilation" part.