I literally took a compiler class just to learn what LR parsing is, and I had to spend an additional ~6 months of my free time just to write an LR parser genera

I literally took a compiler class just to learn what LR parsing is, and I had to spend an additional ~6 months of my free time just to write an LR parser generator that I found intellectually satisfying and didn't leave question marks in my brain. In other words, it's not something I expect you can read a couple sentences about and hope to understand well...