Elements = e*/ws
PreSequence = ps:: Elements
| PreSequence !wp ^"/" !ws e
| PreSequence ^"->" e /ws
| (Quoted|word) ^"::" PreSequence /ws
Elements = e*/ws
PreSequence = ps:: Elements
| PreSequence !wp ^"/" !ws e
| PreSequence ^"->" e /ws
| (Quoted|word) ^"::" PreSequence /ws