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2023-07-21Bump version number to 0.1.20.1.2JSDurand
I have fixed another bug and think that the version of a more stable version is worth bumping the versions for.
2023-07-21bump versionJSDurand
This bumping of version is insignificant. I just find it notable that I seem to finally obtain a version without trivial bugs. Hooray!
2023-07-08Finished the Emacs binding.JSDurand
Now the binding part is finished. What remains is a bug encountered when planting a fragment to the forest which intersects a packed node, which would lead to invalid forests. This will also cause problem when planting a packed fragment, but until now my testing grammars do not produce packed fragments, so this problem is not encountered yet. I am still figuring out efficient ways to solve this problem.
2023-01-13forest seems to be completedJSDurand
I seem to have finished the implementation of forests. Now it remains the implementation of the chain-rule machine, of which I have a rough plan now.
2023-01-03structural change: separate crates outJSDurand
I put functionalities that are not strictly core to separate crates, so that the whole package becomes more modular, and makes it easier to try other parsing algorithms in the future. Also I have to figure the forests out before finishing the core chain-rule algorithm, as the part about forests affects the labels of the grammars directly. From my experiences in writing the previous version, it is asking for trouble to change the labels type dramatically at a later point: too many places need to be changed. Thus I decide to figure the rough part of forests out. Actually I only have to figure out how to attach forests fragments to edges of the underlying atomic languages, and the more complex parts of putting forests together can be left to the recorders, which is my vision of assembling semi-ring values during the chain-rule machine. It should be relatively easy to produce forests fragments from grammars since we are just trying to extract some information from the grammar, not to manipulate those information in some complicated way. We have to do some manipulations in the process, though, in order to make sure that the nulling and epsilon-removal processes do not invalidate these fragments.
2022-12-23renaming core to chain and some other changesJSDurand
Some changes: - The core crate is renamed to "chain". - The crate "viz" is added, which will provide layered graph drawing algorithms. - A function is added to convert from a grammar to the regular language of its left-linear closures. - A function is added to convert from a nondeterministic finite automaton to its "null" closure. A null closure is the same automaton with edges added, as if some edges are "null". Whether an edge is null is determined by a function. Combined with the previous change, we can convert a grammar to the regular language of the null closure of its left-linear closures. --- Now it remains to test more grammars and add an Atom trait, before finishing the part about compilations.
2022-11-15Initial commitJSDurand
Basic GNU standard files are added, and we now stop worrying about monadic anamorphisms. The current focus is on testing the correctness of the algorithm, so I need convenient support for manipulating, interpreting, examining, and per chance animating nondeterministic automata.