prettyclass-1.0.0.0: Pretty printing class similar to Show.

Safe HaskellSafe
LanguageHaskell98

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.

Synopsis

Documentation

class Pretty a where Source

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

Nothing

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 

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

Pretty print a value with the prettyNormal level.

prettyParen :: Bool -> Doc -> Doc Source

Parenthesize an value if the boolean is true.