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{-
Copyright (C) 2009-2012 John MacFarlane <jgm@berkeley.edu>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-}
{- | Functions for converting LaTeX math formulas to MathML.
-}
module Text.TeXMath ( texMathToMathML, texMathToOMML, texMathToPandoc,
DisplayType(..) )
where
import Text.TeXMath.Parser
import Text.TeXMath.MathML
import Text.TeXMath.OMML
import Text.TeXMath.Pandoc
import Text.TeXMath.Types
import Text.XML.Light
import Text.Pandoc.Definition
texMathToMathML :: DisplayType -> String -> Either String Element
texMathToMathML dt inp = inp `seq`
either Left (Right . toMathML dt) $ parseFormula inp
texMathToOMML :: DisplayType -> String -> Either String Element
texMathToOMML dt inp = inp `seq`
either Left (Right . toOMML dt) $ parseFormula inp
texMathToPandoc :: DisplayType -> String -> Either String [Inline]
texMathToPandoc dt inp = inp `seq`
either Left (Right . maybe fallback id . toPandoc dt) $ parseFormula inp
where fallback = [Str $ delim ++ inp ++ delim]
delim = case dt of { DisplayInline -> "$"; DisplayBlock -> "$$" }
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