I've had great success with a parser-generator known as "Marpa" [1]. One of the things I particularly liked about it is how simple it made to emit accurate and

I've had great success with a parser-generator known as "Marpa" [1]. One of the things I particularly liked about it is how simple it made to emit accurate and useful error messages when parsing complex languages. In addition, it can handle anything that can be expressed in BNF, and it's quite fast. [1] https://jeffreykegler.github.io/Marpa-web-site/ https://jeffreykegler.github.io/Marpa-web-site/