(Changed in version 2.9.0) The p0
call-by-name arguments is evaluated at most once per constructed Parser object, instead of on every need that arises during parsing.
(Since version 2.10.0) lastNoSuccess was not thread-safe and will be removed in 2.11.0
(Since version 2.10.0) lastNoSuccess was not thread-safe and will be removed in 2.11.0
A parser converting a key of a Map[String, [Seq[String]]] to a Path instance
foo.bar[0].baz
becomesPath \ "foo" \ "bar" \ 0 \ "baz"