Copyright	(c) Lennart Augustsson 2014
License	BSD-style (see the file LICENSE)
Maintainer	David Terei <code@davidterei.com>
Stability	stable
Portability	portable
Safe Haskell	Safe
Language	Haskell98

Text.PrettyPrint.HughesPJClass

Contents

Pretty typeclass

Description

Pretty printing class, simlar to Show but nicer looking.

Note that the precedence level is a Rational so there is an unlimited number of levels. This module re-exports HughesPJ.

Synopsis

class Pretty a where
- pPrintPrec :: PrettyLevel -> Rational -> a -> Doc
- pPrint :: a -> Doc
- pPrintList :: PrettyLevel -> [a] -> Doc
newtype PrettyLevel = PrettyLevel Int
prettyNormal :: PrettyLevel
prettyShow :: Pretty a => a -> String
prettyParen :: Bool -> Doc -> Doc
module Text.PrettyPrint.HughesPJ

Pretty typeclass

class Pretty a where #

Pretty printing class. The precedence level is used in a similar way as in the Show class. Minimal complete definition is either pPrintPrec or pPrint.

Minimal complete definition

pPrintPrec | pPrint

Methods

pPrintPrec :: PrettyLevel -> Rational -> a -> Doc #

pPrint :: a -> Doc #

pPrintList :: PrettyLevel -> [a] -> Doc #

Instances

Instances details

Pretty Bool #
Instance details Defined in Text.PrettyPrint.HughesPJClass Methods pPrintPrec :: PrettyLevel -> Rational -> Bool -> Doc # pPrint :: Bool -> Doc # pPrintList :: PrettyLevel -> [Bool] -> Doc #
Pretty Char #
Instance details Defined in Text.PrettyPrint.HughesPJClass Methods pPrintPrec :: PrettyLevel -> Rational -> Char -> Doc # pPrint :: Char -> Doc # pPrintList :: PrettyLevel -> [Char] -> Doc #
Pretty Double #
Instance details Defined in Text.PrettyPrint.HughesPJClass Methods pPrintPrec :: PrettyLevel -> Rational -> Double -> Doc # pPrint :: Double -> Doc # pPrintList :: PrettyLevel -> [Double] -> Doc #
Pretty Float #
Instance details Defined in Text.PrettyPrint.HughesPJClass Methods pPrintPrec :: PrettyLevel -> Rational -> Float -> Doc # pPrint :: Float -> Doc # pPrintList :: PrettyLevel -> [Float] -> Doc #
Pretty Int #
Instance details Defined in Text.PrettyPrint.HughesPJClass Methods pPrintPrec :: PrettyLevel -> Rational -> Int -> Doc # pPrint :: Int -> Doc # pPrintList :: PrettyLevel -> [Int] -> Doc #
Pretty Integer #
Instance details Defined in Text.PrettyPrint.HughesPJClass Methods pPrintPrec :: PrettyLevel -> Rational -> Integer -> Doc # pPrint :: Integer -> Doc # pPrintList :: PrettyLevel -> [Integer] -> Doc #
Pretty Ordering #
Instance details Defined in Text.PrettyPrint.HughesPJClass Methods pPrintPrec :: PrettyLevel -> Rational -> Ordering -> Doc # pPrint :: Ordering -> Doc # pPrintList :: PrettyLevel -> [Ordering] -> Doc #
Pretty () #
Instance details Defined in Text.PrettyPrint.HughesPJClass Methods pPrintPrec :: PrettyLevel -> Rational -> () -> Doc # pPrint :: () -> Doc # pPrintList :: PrettyLevel -> [()] -> Doc #
Pretty a => Pretty [a] #
Instance details Defined in Text.PrettyPrint.HughesPJClass Methods pPrintPrec :: PrettyLevel -> Rational -> [a] -> Doc # pPrint :: [a] -> Doc # pPrintList :: PrettyLevel -> [[a]] -> Doc #
Pretty a => Pretty (Maybe a) #
Instance details Defined in Text.PrettyPrint.HughesPJClass Methods pPrintPrec :: PrettyLevel -> Rational -> Maybe a -> Doc # pPrint :: Maybe a -> Doc # pPrintList :: PrettyLevel -> [Maybe a] -> Doc #
(Pretty a, Pretty b) => Pretty (Either a b) #
Instance details Defined in Text.PrettyPrint.HughesPJClass Methods pPrintPrec :: PrettyLevel -> Rational -> Either a b -> Doc # pPrint :: Either a b -> Doc # pPrintList :: PrettyLevel -> [Either a b] -> Doc #
(Pretty a, Pretty b) => Pretty (a, b) #
Instance details Defined in Text.PrettyPrint.HughesPJClass Methods pPrintPrec :: PrettyLevel -> Rational -> (a, b) -> Doc # pPrint :: (a, b) -> Doc # pPrintList :: PrettyLevel -> [(a, b)] -> Doc #
(Pretty a, Pretty b, Pretty c) => Pretty (a, b, c) #
Instance details Defined in Text.PrettyPrint.HughesPJClass Methods pPrintPrec :: PrettyLevel -> Rational -> (a, b, c) -> Doc # pPrint :: (a, b, c) -> Doc # pPrintList :: PrettyLevel -> [(a, b, c)] -> Doc #
(Pretty a, Pretty b, Pretty c, Pretty d) => Pretty (a, b, c, d) #
Instance details Defined in Text.PrettyPrint.HughesPJClass Methods pPrintPrec :: PrettyLevel -> Rational -> (a, b, c, d) -> Doc # pPrint :: (a, b, c, d) -> Doc # pPrintList :: PrettyLevel -> [(a, b, c, d)] -> Doc #
(Pretty a, Pretty b, Pretty c, Pretty d, Pretty e) => Pretty (a, b, c, d, e) #
Instance details Defined in Text.PrettyPrint.HughesPJClass Methods pPrintPrec :: PrettyLevel -> Rational -> (a, b, c, d, e) -> Doc # pPrint :: (a, b, c, d, e) -> Doc # pPrintList :: PrettyLevel -> [(a, b, c, d, e)] -> Doc #
(Pretty a, Pretty b, Pretty c, Pretty d, Pretty e, Pretty f) => Pretty (a, b, c, d, e, f) #
Instance details Defined in Text.PrettyPrint.HughesPJClass Methods pPrintPrec :: PrettyLevel -> Rational -> (a, b, c, d, e, f) -> Doc # pPrint :: (a, b, c, d, e, f) -> Doc # pPrintList :: PrettyLevel -> [(a, b, c, d, e, f)] -> Doc #
(Pretty a, Pretty b, Pretty c, Pretty d, Pretty e, Pretty f, Pretty g) => Pretty (a, b, c, d, e, f, g) #
Instance details Defined in Text.PrettyPrint.HughesPJClass Methods pPrintPrec :: PrettyLevel -> Rational -> (a, b, c, d, e, f, g) -> Doc # pPrint :: (a, b, c, d, e, f, g) -> Doc # pPrintList :: PrettyLevel -> [(a, b, c, d, e, f, g)] -> Doc #
(Pretty a, Pretty b, Pretty c, Pretty d, Pretty e, Pretty f, Pretty g, Pretty h) => Pretty (a, b, c, d, e, f, g, h) #
Instance details Defined in Text.PrettyPrint.HughesPJClass Methods pPrintPrec :: PrettyLevel -> Rational -> (a, b, c, d, e, f, g, h) -> Doc # pPrint :: (a, b, c, d, e, f, g, h) -> Doc # pPrintList :: PrettyLevel -> [(a, b, c, d, e, f, g, h)] -> Doc #

newtype PrettyLevel #

Level of detail in the pretty printed output. Level 0 is the least detail.

Constructors

PrettyLevel Int

Instances

Instances details

Eq PrettyLevel #
Instance details Defined in Text.PrettyPrint.HughesPJClass Methods (==) :: PrettyLevel -> PrettyLevel -> Bool Source # (/=) :: PrettyLevel -> PrettyLevel -> Bool Source #
Ord PrettyLevel #
Instance details Defined in Text.PrettyPrint.HughesPJClass Methods compare :: PrettyLevel -> PrettyLevel -> Ordering Source # (<) :: PrettyLevel -> PrettyLevel -> Bool Source # (<=) :: PrettyLevel -> PrettyLevel -> Bool Source # (>) :: PrettyLevel -> PrettyLevel -> Bool Source # (>=) :: PrettyLevel -> PrettyLevel -> Bool Source # max :: PrettyLevel -> PrettyLevel -> PrettyLevel Source # min :: PrettyLevel -> PrettyLevel -> PrettyLevel Source #
Show PrettyLevel #
Instance details Defined in Text.PrettyPrint.HughesPJClass Methods showsPrec :: Int -> PrettyLevel -> ShowS Source # show :: PrettyLevel -> String Source # showList :: [PrettyLevel] -> ShowS Source #

prettyNormal :: PrettyLevel #

The "normal" (Level 0) of detail.

prettyShow :: Pretty a => a -> String #

Pretty print a value with the prettyNormal level.

prettyParen :: Bool -> Doc -> Doc #

Deprecated: Please use maybeParens instead

Parenthesize an value if the boolean is true.

module Text.PrettyPrint.HughesPJ