i have a syntax im happy with to make grammar decl...

# coroutines

[jimn]

i have a syntax im happy with to make grammar declarations somewhat readable and easily understood... https://github.com/jnorthrup/kursiv/blob/8d946e78f96b92edc74f0bda9bffafed0093a307/src/main/kotlin/ebnf/ebnf.kt#L42