Named.last.step: def of ezx@1.11.0.0
Import: import ezx@1.11.0.0/src/ez/named.bend as Named
Lines 27-35 of ezx@1.11.0.0/src/ez/named.bend: https://jend.leeeet.dev/read.txt?path=ezx@1.11.0.0/src/ez/named.bend&start_line=27&end_line=35

import Base

# one char in front of what was seen. Once a slash has been passed, nothing
# further left changes the answer.
def last.step(+ch: Char, seen: Seen) -> Seen:
  Seen{slash, rest} = seen
  match slash:
    case True{}:
      Seen{True{}, rest}
    case False{}:
      last.at(Char.is_eq(ch, '/'), ch, rest)

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Char
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Char.is_eq
  https://jend.leeeet.dev/definition.txt?path=ezx@1.11.0.0/src/ez/named.bend&name=Seen
  https://jend.leeeet.dev/definition.txt?path=ezx@1.11.0.0/src/ez/named.bend&name=last.at