Parser doesn't seem to support left recursion

[clache547]

I was trying to run some basic grammar that had some left recursion and realized that the parser doesn't seem to support that. Is there a reason for that/would it be possible for the parser to support that?

[Saibo-creator]

Hello @clache547 , you are right. Our parser is a recursive descent parser which doesn't support left-recursion by construction. There are two solutions:

1. transform the grammar to avoid left-recursion, this is always possible. See this related issue
2. update the parser to a version that supports left-recursion such as Earley Parser. But we don't foresee such a major update in the short future.