Are there any books or other sources about compilers or language design that describe how to write a modern parser like this? I've seen a dozen "write your own compiler" tutorials or books where parsers are described as relatively simple things – like recursive descent with a bit of lookahead, then throw an error when you hit something unexpected. But then I've also seen multiple languages or compiler projects rewriting the parser at some point.
In the first post, @Douglas_Gregor mentions two points ("Resilience", and "Incremental") that sound like they could be very challenging to implement. So I wonder if you're inventing this as you go or if there are some guides about prior art that people can work from.