type Ps
import bend-kit-regex@0.8.0.0/regex.bend as Regeximport Base
399# n: the next capture index. rep: the last token was a repetition. alts and cur are reversed.
400type Ps is Data:
401 Ps{n: U32, rep: Bool, stack: List<&2, Frame>, alts: List<&2, Node>, cur: List<&2, Node>}
402 PsFail{}