[xiaq]

I would love to see the diff between the hand-rolled recursive-descent parser and the ANTLR syntax!

I certainly feel the amount of boilerplate in my hand-rolled recursive-descent parser is manageable. Of course it's not as succinct as an EBNF grammar:

- For example, you have to write an actual loop (with "for" and looping conditions) instead of just * for repetition

- The Go formatter demands a newline in most control flows

- Go is also not the most succinct language in general

So you do end up with many more lines of code. But at the end of the day, the structure of each parsing function is remarkably similar to a production rule, and for simpler ones I can mentally map between them pretty easily, with the added benefit of being able to insert code anywhere if I need something beyond old-school context-free parsing.