-- Doc

env0 :: (Num w) => PEnv w ann ()
env0 = PEnv
  { maxWidth = 80
  , maxRibbon = 60
  , layout = Break
  , failure = CantFail
  , nesting = 0
  , formatting = mempty
  , formatAnn = const mempty
  }
env0 :: (Num w) => PEnv w ann ()
env0 = PEnv
  { maxWidth = 80
  , maxRibbon = 60
  , layout = Break
  , failure = CantFail
  , nesting = 0
  , formatting = mempty
  , formatAnn = const mempty
  }
env0 = PEnv
  { maxWidth = 80
  , maxRibbon = 60
  , layout = Break
  , failure = CantFail
  , nesting = 0
  , formatting = mempty
  , formatAnn = const mempty
  }