hgeometry-ipe-0.13: Reading and Writing ipe7 files.

Copyright	(C) Frank Staals
License	see the LICENSE file
Maintainer	Frank Staals
Safe Haskell	None
Language	Haskell2010

Ipe.PathParser

Description

Parser for a Path in Ipe.

Synopsis

class Fractional r => Coordinate r where
- fromSeq :: Integer -> Maybe (Int, Integer) -> r
readCoordinate :: Coordinate r => Text -> Either Text r
readPoint :: Coordinate r => Text -> Either Text (Point 2 r)
readMatrix :: Coordinate r => Text -> Either Text (Matrix 3 3 r)
readRectangle :: Coordinate r => Text -> Either Text (Rectangle () r)
runParser :: Parser a -> Text -> Either Text a
readPathOperations :: Coordinate r => Text -> Either Text [Operation r]
pOperation :: forall r. Coordinate r => Parser (Operation r)
pPoint :: Coordinate r => Parser (Point 2 r)
pCoordinate :: Coordinate r => Parser r

Documentation

class Fractional r => Coordinate r where Source #

Represent stuff that can be used as a coordinate in ipe. (similar to show/read)

Minimal complete definition

Nothing

Methods

fromSeq :: Integer -> Maybe (Int, Integer) -> r Source #

default fromSeq :: (Ord r, Fractional r) => Integer -> Maybe (Int, Integer) -> r Source #

Instances

Instances details

Coordinate Double Source #
Instance details Defined in Ipe.PathParser Methods fromSeq :: Integer -> Maybe (Int, Integer) -> Double Source #
Coordinate Float Source #
Instance details Defined in Ipe.PathParser Methods fromSeq :: Integer -> Maybe (Int, Integer) -> Float Source #
Coordinate (Ratio Integer) Source #
Instance details Defined in Ipe.PathParser Methods fromSeq :: Integer -> Maybe (Int, Integer) -> Ratio Integer Source #
Coordinate (RealNumber p) Source #
Instance details Defined in Ipe.PathParser Methods fromSeq :: Integer -> Maybe (Int, Integer) -> RealNumber p Source #

readCoordinate :: Coordinate r => Text -> Either Text r Source #

Running the parsers

Read/parse a single coordinate value.

readPoint :: Coordinate r => Text -> Either Text (Point 2 r) Source #

Read/parse a single point

readMatrix :: Coordinate r => Text -> Either Text (Matrix 3 3 r) Source #

Try to read/parse a matrix.

readRectangle :: Coordinate r => Text -> Either Text (Rectangle () r) Source #

Try to read/parse a Rectangle

runParser :: Parser a -> Text -> Either Text a Source #

Run a parser

readPathOperations :: Coordinate r => Text -> Either Text [Operation r] Source #

Parse a sequence of path operations.

pOperation :: forall r. Coordinate r => Parser (Operation r) Source #

Parse an operation

pPoint :: Coordinate r => Parser (Point 2 r) Source #

pCoordinate :: Coordinate r => Parser r Source #