Text.TeXMath

Functions for converting between different representations of mathematical formulas.

Also note that in general writeLaTeX . readLaTeX /= id.

A typical use is to combine together a reader and writer.

import Control.Applicative ((<$>))
import Text.TeXMath (writeMathML, readTeX)

texMathToMathML :: DisplayType -> String -> Either String Element
texMathToMathML dt s = writeMathML dt <$> readTeX s

It is also possible to manipulate the AST using Generics. For example, if you wanted to replace all occurences of the identifier x in your expression, you do could do so with the following script.

import Control.Applicative ((<$>))
import Data.Generics (everywhere, mkT)
import Text.TeXMath (writeMathML, readTeX)
import Text.TeXMath.Types
import Text.XML.Light (Element)

changeIdent :: Exp -> Exp
changeIdent (EIdentifier "x") = EIdentifier "y"
changeIdent e = e

texToMMLWithChangeIdent :: DisplayType -> String -> Either String Element
texToMMLWithChangeIdent dt s =
  writeMathML dt . everywhere (mkT changeIdent) <$> readTeX s

Documentation

readMathML :: String -> Either String [Exp]

Parse a MathML expression to a list of Exp.

readOMML :: String -> Either String [Exp]

readTeX :: String -> Either String [Exp]

Parse a formula, returning a list of Exp.

writeTeX :: [Exp] -> String

Transforms an expression tree to equivalent LaTeX with the default packages (amsmath and amssymb)

writeTeXWith :: Env -> [Exp] -> String

Transforms an expression tree to equivalent LaTeX with the specified packages

addLaTeXEnvironment :: DisplayType -> String -> String

Adds the correct LaTeX environment around a TeXMath fragment

writeEqn :: DisplayType -> [Exp] -> String

Transforms an expression tree to equivalent Eqn with the default packages (amsmath and amssymb)

writeOMML :: DisplayType -> [Exp] -> Element

Transforms an expression tree to an OMML XML Tree

writeMathML :: DisplayType -> [Exp] -> Element

Transforms an expression tree to a MathML XML tree

writePandoc :: DisplayType -> [Exp] -> Maybe [Inline]

Attempts to convert a formula to a list of Pandoc inlines.

data DisplayType

Constructors

DisplayBlock

A displayed formula.

DisplayInline

A formula rendered inline in text.

Instances

Eq DisplayType

Methods

(==) :: DisplayType -> DisplayType -> Bool

(/=) :: DisplayType -> DisplayType -> Bool

Ord DisplayType

Methods

compare :: DisplayType -> DisplayType -> Ordering

(<) :: DisplayType -> DisplayType -> Bool

(<=) :: DisplayType -> DisplayType -> Bool

(>) :: DisplayType -> DisplayType -> Bool

(>=) :: DisplayType -> DisplayType -> Bool

max :: DisplayType -> DisplayType -> DisplayType

min :: DisplayType -> DisplayType -> DisplayType

Show DisplayType

Methods

showsPrec :: Int -> DisplayType -> ShowS

show :: DisplayType -> String

showList :: [DisplayType] -> ShowS

data Exp

Instances

Eq Exp

Methods

(==) :: Exp -> Exp -> Bool

(/=) :: Exp -> Exp -> Bool

Data Exp

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Exp -> c Exp

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Exp

toConstr :: Exp -> Constr

dataTypeOf :: Exp -> DataType

dataCast1 :: Typeable (* -> *) t => (forall d. Data d => c (t d)) -> Maybe (c Exp)

dataCast2 :: Typeable (* -> * -> *) t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Exp)

gmapT :: (forall b. Data b => b -> b) -> Exp -> Exp

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Exp -> r

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Exp -> r

gmapQ :: (forall d. Data d => d -> u) -> Exp -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> Exp -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Exp -> m Exp

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Exp -> m Exp

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Exp -> m Exp

Ord Exp

Methods

compare :: Exp -> Exp -> Ordering

(<) :: Exp -> Exp -> Bool

(<=) :: Exp -> Exp -> Bool

(>) :: Exp -> Exp -> Bool

(>=) :: Exp -> Exp -> Bool

max :: Exp -> Exp -> Exp

min :: Exp -> Exp -> Exp

Read Exp

Methods

readsPrec :: Int -> ReadS Exp

readList :: ReadS [Exp]

readPrec :: ReadPrec Exp

readListPrec :: ReadPrec [Exp]

Show Exp

Methods

showsPrec :: Int -> Exp -> ShowS

show :: Exp -> String

showList :: [Exp] -> ShowS