| Safe Haskell | Safe-Inferred |
|---|
Text.PrettyPrint.HughesPJClass
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.
Based on Text.PrettyPrint.HughesPJ, which is re-exported.
- 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
Documentation
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.
Instances
| Pretty Bool | |
| Pretty Char | |
| Pretty Double | |
| Pretty Float | |
| Pretty Int | |
| Pretty Integer | |
| Pretty Ordering | |
| Pretty () | |
| Pretty a => Pretty [a] | |
| Pretty a => Pretty (Maybe a) | |
| (Pretty a, Pretty b) => Pretty (Either a b) | |
| (Pretty a, Pretty b) => Pretty (a, b) | |
| (Pretty a, Pretty b, Pretty c) => Pretty (a, b, c) | |
| (Pretty a, Pretty b, Pretty c, Pretty d) => Pretty (a, b, c, d) | |
| (Pretty a, Pretty b, Pretty c, Pretty d, Pretty e) => Pretty (a, b, c, d, e) | |
| (Pretty a, Pretty b, Pretty c, Pretty d, Pretty e, Pretty f) => Pretty (a, b, c, d, e, f) | |
| (Pretty a, Pretty b, Pretty c, Pretty d, Pretty e, Pretty f, Pretty g) => Pretty (a, b, c, d, e, f, g) | |
| (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) |
newtype PrettyLevel
Level of detail in the pretty printed output. Level 0 is the least detail.
Constructors
| PrettyLevel Int |
Instances
prettyShow :: Pretty a => a -> String
Pretty print a value with the prettyNormal level.
prettyParen :: Bool -> Doc -> Doc
Parenthesize an value if the boolean is true.
module Text.PrettyPrint.HughesPJ