DDC.Base.Pretty

Pretty printer utilities.

This is a re-export of Daan Leijen's pretty printer package (wl-pprint), but with a Pretty class that includes a pprPrec function.

Documentation

module Text.PrettyPrint.Leijen

class Pretty a where

Associated Types

data PrettyMode a

Methods

pprDefaultMode :: PrettyMode a

ppr :: a -> Doc

pprPrec :: Int -> a -> Doc

pprModePrec :: PrettyMode a -> Int -> a -> Doc

Instances

Pretty Bool

Pretty Char

Pretty Int

Pretty Integer

Pretty ()

Pretty Message

Pretty ParseError

Pretty SourcePos

Pretty a => Pretty [a]

Pretty a => Pretty (Set a)

(Pretty a, Pretty b) => Pretty (a, b)

pprParen :: Bool -> Doc -> Doc

Wrap a Doc in parens if the predicate is true.

Rendering

data RenderMode

How to pretty print a doc.

Constructors

RenderPlain

Render the doc with indenting.

RenderIndent

Render the doc without indenting.

Instances

Eq RenderMode

Show RenderMode

render :: RenderMode -> Doc -> String

Render a doc with the given mode.

renderPlain :: Doc -> String

Convert a Doc to a string without indentation.

renderIndent :: Doc -> String

Convert a Doc to a string with indentation

putDoc :: RenderMode -> Doc -> IO ()

Put a Doc to stdout using the given mode.

putDocLn :: RenderMode -> Doc -> IO ()

Put a Doc to stdout using the given mode.