Language.CoreErlang.Pretty

Pretty printer for CoreErlang.

Pretty printing

class Pretty a

Things that can be pretty-printed, including all the syntactic objects in Language.CoreErlang.Syntax.

Instances

Pretty TimeOut

Pretty Guard

Pretty Alias

Pretty Pat

Pretty Pats

Pretty Alt

Pretty Exp

Pretty Exps

Pretty Literal

Pretty FunDef

Pretty Const

Pretty Module

Pretty Function

Pretty Atom

Pretty a => Pretty (Ann a)

Pretty a => Pretty (List a)

Pretty a => Pretty (BitString a)

prettyPrintStyleMode :: Pretty a => Style -> PPMode -> a -> String

pretty-print with a given style and mode.

prettyPrintWithMode :: Pretty a => PPMode -> a -> String

pretty-print with the default style and a given mode.

prettyPrint :: Pretty a => a -> String

pretty-print with the default style and defaultMode.

Pretty-printing styles (from -- Text.PrettyPrint.HughesPJ)

data Style

A rendering style.

Constructors

Style

Fields

mode :: Mode

The rendering mode

lineLength :: Int

Length of line, in chars

ribbonsPerLine :: Float

Ratio of ribbon length to line length

style :: Style

The default style (mode=PageMode, lineLength=100, ribbonsPerLine=1.5).

data Mode

Rendering mode.

Constructors

PageMode

Normal

ZigZagMode

With zig-zag cuts

LeftMode

No indentation, infinitely long lines

OneLineMode

All on one line

CoreErlang formatting modes

data PPMode

Pretty-printing parameters.

Constructors

PPMode

Fields

altIndent :: Indent

indentation of the alternatives in a case expression

caseIndent :: Indent

indentation of the declarations in a case expression

fundefIndent :: Indent

indentation of the declarations in a function definition

lambdaIndent :: Indent

indentation of the declarations in a lambda expression

letIndent :: Indent

indentation of the declarations in a let expression

letrecIndent :: Indent

indentation of the declarations in a letrec expression

onsideIndent :: Indent

indentation added for continuation lines that would otherwise be offside

layout :: PPLayout

Pretty-printing style to use

type Indent = Int

data PPLayout

Varieties of layout we can use.

Constructors

PPDefault

classical layout

PPNoLayout

everything on a single line

Instances

Eq PPLayout

defaultMode :: PPMode

The default mode: pretty-print using sensible defaults.