| Copyright | (c) The GHC Team Noel Winstanley 1997-2000 |
|---|---|
| License | BSD-3-Clause |
| Maintainer | Andreas Abel |
| Stability | stable |
| Portability | portable |
| Safe Haskell | Safe-Inferred |
| Language | Haskell98 |
Language.Haskell.Pretty
Description
Pretty printer for Haskell.
Synopsis
- class Pretty a
- prettyPrintStyleMode :: Pretty a => Style -> PPHsMode -> a -> String
- prettyPrintWithMode :: Pretty a => PPHsMode -> a -> String
- prettyPrint :: Pretty a => a -> String
- data Style = Style {
- mode :: Mode
- lineLength :: Int
- ribbonsPerLine :: Float
- style :: Style
- data Mode
- data PPHsMode = PPHsMode {
- classIndent :: Indent
- doIndent :: Indent
- caseIndent :: Indent
- letIndent :: Indent
- whereIndent :: Indent
- onsideIndent :: Indent
- spacing :: Bool
- layout :: PPLayout
- linePragmas :: Bool
- comments :: Bool
- type Indent = Int
- data PPLayout
- defaultMode :: PPHsMode
Pretty printing
Things that can be pretty-printed, including all the syntactic objects in Language.Haskell.Syntax.
Instances
prettyPrintStyleMode :: Pretty a => Style -> PPHsMode -> a -> String Source #
pretty-print with a given style and mode.
prettyPrintWithMode :: Pretty a => PPHsMode -> a -> String Source #
pretty-print with the default style and a given mode.
prettyPrint :: Pretty a => a -> String Source #
pretty-print with the default style and defaultMode.
Pretty-printing styles (from Text.PrettyPrint.HughesPJ)
A rendering style. Allows us to specify constraints to choose among the many different rendering options.
Constructors
| Style | |
Fields
| |
Instances
| Generic Style | |
| Show Style | |
| Eq Style | |
| type Rep Style | |
Defined in Text.PrettyPrint.Annotated.HughesPJ type Rep Style = D1 ('MetaData "Style" "Text.PrettyPrint.Annotated.HughesPJ" "pretty-1.1.3.6" 'False) (C1 ('MetaCons "Style" 'PrefixI 'True) (S1 ('MetaSel ('Just "mode") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Mode) :*: (S1 ('MetaSel ('Just "lineLength") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Int) :*: S1 ('MetaSel ('Just "ribbonsPerLine") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Float)))) | |
Rendering mode.
Constructors
| PageMode | Normal rendering ( |
| ZigZagMode | With zig-zag cuts. |
| LeftMode | No indentation, infinitely long lines ( |
| OneLineMode | All on one line, |
Instances
| Generic Mode | |
| Show Mode | |
| Eq Mode | |
| type Rep Mode | |
Defined in Text.PrettyPrint.Annotated.HughesPJ type Rep Mode = D1 ('MetaData "Mode" "Text.PrettyPrint.Annotated.HughesPJ" "pretty-1.1.3.6" 'False) ((C1 ('MetaCons "PageMode" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "ZigZagMode" 'PrefixI 'False) (U1 :: Type -> Type)) :+: (C1 ('MetaCons "LeftMode" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "OneLineMode" 'PrefixI 'False) (U1 :: Type -> Type))) | |
Haskell formatting modes
Pretty-printing parameters.
Note: the onsideIndent must be positive and less than all other indents.
Constructors
| PPHsMode | |
Fields
| |
Varieties of layout we can use.
Constructors
| PPOffsideRule | Classical layout. |
| PPSemiColon | Classical layout made explicit. |
| PPInLine | Inline decls, with newlines between them. |
| PPNoLayout | Everything on a single line. |
defaultMode :: PPHsMode Source #
The default mode: pretty-print using the offside rule and sensible defaults.