ormolu-0.7.2.0: data/examples/other/necessary-brackets.hs
insertEmDash = Text.concat . map \case{ x | x == "--" -> "—"; x -> x } . Text.groupBy ((==) `on` Char.isSpace)
foo f a b c = f do {a} + f do {b} + f do {c}
insertEmDash = Text.concat . map \case{ x | x == "--" -> "—"; x -> x } . Text.groupBy ((==) `on` Char.isSpace)
foo f a b c = f do {a} + f do {b} + f do {c}