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

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

Show DisplayType

data Exp

Instances

Eq Exp

Data Exp

Read Exp

Show Exp

Typeable * Exp