Cli.osa.swap.b: def of shake@0.7.0.0
Import: import shake@0.7.0.0/src/cli.bend as Cli
Lines 2256-2262 of shake@0.7.0.0/src/cli.bend: https://jend.leeeet.dev/read.txt?path=shake@0.7.0.0/src/cli.bend&start_line=2256&end_line=2262

import Base

# whether the char before `cb` is `ca`, once the char before `ca` is `xa`
def osa.swap.b(+xa: Char, pb: Maybe<&2, Char>, +ca: Char, +cb: Char) -> Bool:
  match pb:
    case None{}:
      False{}
    case Some{xb}:
      Bool.and(Char.is_eq(ca, xb), Char.is_eq(xa, cb))

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=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=Char.is_eq
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe