~
scala.util.parsing.combinator.Parsers.~
A wrapper over sequence of matches.
Given p1: Parser[A] and p2: Parser[B], a parser composed with p1 ~ p2 will have type Parser[~[A, B]]. The successful result of the parser can be extracted from this case class.
It also enables pattern matching, so something like this is possible:
def concat(p1: Parser[String], p2: Parser[String]): Parser[String] =
p1 ~ p2 ^^ { case a ~ b => a + b }
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