Line.dec.four: def of ezmcp@0.1.0.0
Import: import ezmcp@0.1.0.0/src/line.bend as Line
Lines 149-155 of ezmcp@0.1.0.0/src/line.bend: https://jend.leeeet.dev/read.txt?path=ezmcp@0.1.0.0/src/line.bend&start_line=149&end_line=155

import Base

def dec.four(+lead: U32, bs: List<&2, U32>, go: List<&2, U32> -> String) -> String:
  match bs:
    case +b <> +c <> +d <> +t:
      dec.take(Chr{four(lead, b, c, d)},
        Bool.and(cont(b), Bool.and(cont(c), cont(d))), b <> c <> d <> t, t, go)
    case other:
      SCon{bad(), go(other)}

Uses (9):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.and
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Char
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=ezmcp@0.1.0.0/src/line.bend&name=bad
  https://jend.leeeet.dev/definition.txt?path=ezmcp@0.1.0.0/src/line.bend&name=cont
  https://jend.leeeet.dev/definition.txt?path=ezmcp@0.1.0.0/src/line.bend&name=dec.take
  https://jend.leeeet.dev/definition.txt?path=ezmcp@0.1.0.0/src/line.bend&name=four