| Safe Haskell | Safe |
|---|---|
| Language | Haskell98 |
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
- newtype PrettyLevel = PrettyLevel Int
- prettyNormal :: PrettyLevel
- prettyShow :: Pretty a => a -> String
- prettyParen :: Bool -> Doc -> Doc
- module Text.PrettyPrint.HughesPJ
Documentation
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.
Methods
pPrintPrec :: PrettyLevel -> Rational -> a -> Doc Source #
pPrintList :: PrettyLevel -> [a] -> Doc Source #
Instances
| Pretty Bool Source # | |
| Pretty Char Source # | |
| Pretty Double Source # | |
| Pretty Float Source # | |
| Pretty Int Source # | |
| Pretty Integer Source # | |
| Pretty Ordering Source # | |
| Pretty () Source # | |
| Pretty a => Pretty [a] Source # | |
| Pretty a => Pretty (Maybe a) Source # | |
| (Pretty a, Pretty b) => Pretty (Either a b) Source # | |
| (Pretty a, Pretty b) => Pretty (a, b) Source # | |
| (Pretty a, Pretty b, Pretty c) => Pretty (a, b, c) Source # | |
| (Pretty a, Pretty b, Pretty c, Pretty d) => Pretty (a, b, c, d) Source # | |
| (Pretty a, Pretty b, Pretty c, Pretty d, Pretty e) => Pretty (a, b, c, d, e) Source # | |
| (Pretty a, Pretty b, Pretty c, Pretty d, Pretty e, Pretty f) => Pretty (a, b, c, d, e, f) Source # | |
| (Pretty a, Pretty b, Pretty c, Pretty d, Pretty e, Pretty f, Pretty g) => Pretty (a, b, c, d, e, f, g) Source # | |
| (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) Source # | |
newtype PrettyLevel Source #
Level of detail in the pretty printed output. Level 0 is the least detail.
Constructors
| PrettyLevel Int |
Instances
prettyShow :: Pretty a => a -> String Source #
Pretty print a value with the prettyNormal level.
module Text.PrettyPrint.HughesPJ