How do I parse part of a document?

[NullVoxPopuli]

@marijn

Didn’t I just show you how to write a token that doesn’t have this problem?

Yeah, you’re quoting an old statement.

@marijn

don’t know what ‘invisibles’ means to you.

@tokens {
  invisibles { @whitespace+ }

@marijn

while I’m willing to answer specific questions

I don’t yet know enough about this very new and non widely used grammar-syntax, nor the nomenclature around it to ask more specific questions. Still trying to build a foundation – I’ve read through the docs, but because I lack foundational understanding on all these topics, they don’t exactly read clearly to me.