Documentation

Finding a good example for printing something that does not exist is hard, so here is an example of printing a list full of nothing.

>>> pretty ([] :: [Void])
[]

Automatically converts all newlines to line.

>>> pretty ("hello\nworld" :: Text)
hello
world

Note that line can be undone by group:

>>> group (pretty ("hello\nworld" :: Text))
hello world

Manually use hardline if you definitely want newlines.

(lazy Doc instance, identical to the strict version)

>>> pretty (2^123 :: Integer)
10633823966279326983230456482242756608

>>> pretty ()
()

The argument is not used:

>>> pretty (error "Strict?" :: ())
()

>>> pretty True
True

Instead of (pretty 'n'), consider using line as a more readable alternative.

>>> pretty 'f' <> pretty 'o' <> pretty 'o'
foo
>>> pretty ("string" :: String)
string

>>> pretty (exp 1 :: Double)
2.71828182845904...

>>> pretty (pi :: Float)
3.1415927

>>> pretty (123 :: Int)
123

>>> pretty (Identity 1)
1

Ignore Nothings, print Just contents.

>>> pretty (Just True)
True
>>> braces (pretty (Nothing :: Maybe Bool))
{}

>>> pretty [Just 1, Nothing, Just 3, Nothing]
[1, 3]

>>> pretty [1,2,3]
[1, 2, 3]

>>> pretty (123, "hello")
(123, hello)

>>> pretty (123, "hello", False)
(123, hello, False)