Regex.parse.open: def of bend-kit-regex@0.8.0.0
Import: import bend-kit-regex@0.8.0.0/regex.bend as Regex
Lines 489-494 of bend-kit-regex@0.8.0.0/regex.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-regex@0.8.0.0/regex.bend&start_line=489&end_line=494

import Base

def parse.open(cap: Bool, +n: U32, stack: List<&2, Frame>, alts: List<&2, Node>, cur: List<&2, Node>) -> Ps:
  match cap:
    case True{}:
      Ps{(n + 1 : U32), False{}, Frame{Some{n}, alts, cur} <> stack, Nil{}, Nil{}}
    case False{}:
      Ps{n, False{}, Frame{None{}, alts, cur} <> stack, Nil{}, Nil{}}

Uses (8):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.add
  https://jend.leeeet.dev/definition.txt?path=bend-kit-regex@0.8.0.0/regex.bend&name=Frame
  https://jend.leeeet.dev/definition.txt?path=bend-kit-regex@0.8.0.0/regex.bend&name=Node
  https://jend.leeeet.dev/definition.txt?path=bend-kit-regex@0.8.0.0/regex.bend&name=Ps