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> Haskell Core Libraries (haskell-src package) Parent Contents Index Language.Haskell.Pretty Portability portable Stability experimental Maintainer libraries@haskell.org Contents Pretty printing Pretty-printing modes Description Pretty printer for Haskell. Synopsis class Pretty a prettyPrintWithMode :: (Pretty a) => PPHsMode -> a -> String prettyPrint :: (Pretty a) => a -> String data PPHsMode = PPHsMode { classIndent :: Indent doIndent :: Indent caseIndent :: Indent letIndent :: Indent whereIndent :: Indent onsideIndent :: Indent spacing :: Bool layout :: PPLayout linePragmas :: Bool comments :: Bool } data PPLayout = PPOffsideRule | PPSemiColon | PPInLine | PPNoLayout defaultMode :: PPHsMode Pretty printing class Pretty a Things that can be pretty-printed, including all the syntactic objects in Language.Haskell.Syntax. Instances Pretty HsModule Pretty Module Pretty HsExportSpec Pretty HsImportDecl Pretty HsImportSpec Pretty HsDecl Pretty HsAssoc Pretty HsMatch Pretty HsConDecl Pretty HsBangType Pretty HsQualType Pretty HsType Pretty HsRhs Pretty HsGuardedRhs Pretty HsLiteral Pretty HsExp Pretty HsPat Pretty HsPatField Pretty HsAlt Pretty HsGuardedAlts Pretty HsGuardedAlt Pretty HsStmt Pretty HsFieldUpdate Pretty HsQOp Pretty HsQName Pretty HsOp Pretty HsName Pretty HsCName prettyPrintWithMode :: (Pretty a) => PPHsMode -> a -> String pretty-print with a given mode. prettyPrint :: (Pretty a) => a -> String pretty-print with defaultMode. Pretty-printing modes data PPHsMode Pretty-printing parameters. Constructors PPHsMode classIndent :: Indent indentation of a class or instance doIndent :: Indent indentation of a do-expression caseIndent :: Indent indentation of the body of a case expression letIndent :: Indent indentation of the declarations in a let expression whereIndent :: Indent indentation of the declarations in a where clause onsideIndent :: Indent indentation added for continuation lines that would otherwise be offside spacing :: Bool blank lines between statements? layout :: PPLayout Pretty-printing style to use linePragmas :: Bool add GHC-style LINE pragmas to output? comments :: Bool not implemented yet data PPLayout 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 The default mode: pretty-print using the offside rule and sensible defaults. Produced by Haddock version 0.4