pest_derive/tests/implicit.pest

program = _{ SOI ~ implicit ~ EOI  }
implicit= ${ or ~ (WHITESPACE+ ~ or )* }

or  = !{ and ~ (or_op ~ and)+ | and }
and = { comp ~ (and_op ~ comp)+ | comp }
comp = { array ~ eq_op ~ array | array }

array = ${ term }

term = _{ ASCII_ALPHANUMERIC+ }
or_op = { "||" }
and_op = { "&&" }
eq_op = { "=" }
WHITESPACE = _{ " " | "\t" | NEWLINE }