I don't know about best practice, but having implemented a few different parsing algorithms for the same language, I found that "Pratt parsers" to have unique a

I don't know about best practice, but having implemented a few different parsing algorithms for the same language, I found that "Pratt parsers" to have unique advantages, keeping the logic simple, clear, and flexible. At least for the particular needs of that language's syntax, and my preference for hand-rolled parsers (rather than generated from grammar), it was the best solution. It allowed me to elegantly solve some syntactic groupings that were difficult/complex to parse with other approaches. Here's an excellent overview of the algorithm, with examples in Python: Pratt Parsers: Expression Parsing Made Easy - http://journal.stuffwithstuff.com/2011/03/19/pratt-parsers-expression-parsing-made-easy/ http://journal.stuffwithstuff.com/2011/03/19/pratt-parsers-e... A newer article with implementation in Rust: Simple but Powerful Pratt Parsing - https://matklad.github.io/2020/04/13/simple-but-powerful-pratt-parsing.html https://matklad.github.io/2020/04/13/simple-but-powerful-pra...