Hey thanks! I'm one of the primary developers of this grammar along with @maxbrunsfeld. It was the driving force for supporting an external scanner and while there are still some Ruby edges cases, I'm pretty happy with how it came out. I will say we spent a lot of time on this and I read both the bison Ruby grammar and whitequark's ruby parser (which is excellent) in great detail to understand how to deal with certain parts of the language.
One thing I love about tree-sitter is how both the grammar and the resulting ASTs are so readable. I can come back to this project after months of not contributing and pick up right where I left off.
One thing I love about tree-sitter is how both the grammar and the resulting ASTs are so readable. I can come back to this project after months of not contributing and pick up right where I left off.