Data.GraphViz.ParserCombinators

This module defines simple helper functions for use with Text.ParserCombinators.Poly.Lazy.

Note that the Parseable instances for Bool, etc. match those specified for use with GraphViz (e.g. non-zero integers are equivalent to True).

You should not be using this module; rather, it is here for informative/documentative reasons. If you want to parse a Data.GraphViz.Types.DotGraph, you should use Data.GraphViz.Types.parseDotGraph rather than its Parseable instance.

Documentation

module Text.ParserCombinators.Poly.Lazy

type Parse a = Parser Char a

A ReadS-like type alias.

class Parseable a where

Methods

parse :: Parse a

parseList :: Parse [a]

Instances

Parseable Bool

Parseable Char

Parseable Double

Parseable Int

Parseable QuotedString

Parseable Ratios

Parseable Justification

Parseable ScaleType

Parseable VerticalPlacement

Parseable FocusType

Parseable ViewPort

Parseable CompassPoint

Parseable PortPos

Parseable StyleName

Parseable Style

Parseable STStyle

Parseable StartType

Parseable SmoothType

Parseable Shape

Parseable RankDir

Parseable RankType

Parseable Root

Parseable QuadType

Parseable Spline

Parseable PageDir

Parseable EdgeType

Parseable Pos

Parseable PackMode

Parseable Pack

Parseable OutputMode

Parseable LayerList

Parseable LayerID

Parseable LayerRange

Parseable Overlap

Parseable Point

Parseable Label

Parseable DPoint

Parseable DEConstraints

Parseable DirType

Parseable ClusterMode

Parseable Color

Parseable Rect

Parseable AspectType

Parseable ArrowType

Parseable URL

Parseable Attribute

Parseable DotEdge

Parseable DotNode

Parseable GraphID

Parseable DotGraph

Parseable a => Parseable [a]

Used when quotes are explicitly required; note that the quotes are not stripped off.

stringBlock :: Parse String

quotedString :: Parse String

parseAndSpace :: Parse a -> Parse a

string :: String -> Parse String

strings :: [String] -> Parse String

hasString :: String -> Parse Bool

char :: Char -> Parse Char

whitespace :: Parse String

whitespace' :: Parse String

optionalQuotedString :: String -> Parse String

optionalQuoted :: Parse a -> Parse a

quotedParse :: Parse a -> Parse a

newline :: Parse String

skipToNewline :: Parse ()

parseField :: Parseable a => String -> Parse a

parseBoolField :: String -> Parse Bool

parseFieldDef :: Parseable a => a -> String -> Parse a

For Bool-like data structures where the presence of the field name without a value implies a default value.

commaSep :: (Parseable a, Parseable b) => Parse (a, b)

commaSep' :: Parse a -> Parse b -> Parse (a, b)