diff options
Diffstat (limited to 'src/Text/Pandoc/Readers/TeXMath.hs')
| -rw-r--r-- | src/Text/Pandoc/Readers/TeXMath.hs | 84 |
1 files changed, 2 insertions, 82 deletions
diff --git a/src/Text/Pandoc/Readers/TeXMath.hs b/src/Text/Pandoc/Readers/TeXMath.hs index fe49a992e..1f7088f72 100644 --- a/src/Text/Pandoc/Readers/TeXMath.hs +++ b/src/Text/Pandoc/Readers/TeXMath.hs @@ -30,93 +30,13 @@ Conversion of TeX math to a list of 'Pandoc' inline elements. module Text.Pandoc.Readers.TeXMath ( readTeXMath ) where import Text.Pandoc.Definition -import Text.TeXMath.Types -import Text.TeXMath.Parser +import Text.TeXMath -- | Converts a raw TeX math formula to a list of 'Pandoc' inlines. -- Defaults to raw formula between @$@ characters if entire formula -- can't be converted. readTeXMath :: String -- ^ String to parse (assumes @'\n'@ line endings) -> [Inline] -readTeXMath inp = case texMathToPandoc inp of +readTeXMath inp = case texMathToPandoc DisplayInline inp of Left _ -> [Str ("$" ++ inp ++ "$")] Right res -> res - -texMathToPandoc :: String -> Either String [Inline] -texMathToPandoc inp = inp `seq` - case parseFormula inp of - Left err -> Left err - Right exps -> case expsToInlines exps of - Nothing -> Left "Formula too complex for [Inline]" - Just r -> Right r - -expsToInlines :: [Exp] -> Maybe [Inline] -expsToInlines xs = do - res <- mapM expToInlines xs - return (concat res) - -expToInlines :: Exp -> Maybe [Inline] -expToInlines (ENumber s) = Just [Str s] -expToInlines (EIdentifier s) = Just [Emph [Str s]] -expToInlines (EMathOperator s) = Just [Str s] -expToInlines (ESymbol t s) = Just $ addSpace t (Str s) - where addSpace Op x = [x, thinspace] - addSpace Bin x = [medspace, x, medspace] - addSpace Rel x = [widespace, x, widespace] - addSpace Pun x = [x, thinspace] - addSpace _ x = [x] - thinspace = Str "\x2006" - medspace = Str "\x2005" - widespace = Str "\x2004" -expToInlines (EStretchy x) = expToInlines x -expToInlines (EDelimited start end xs) = do - xs' <- mapM expToInlines xs - return $ [Str start] ++ concat xs' ++ [Str end] -expToInlines (EGrouped xs) = expsToInlines xs -expToInlines (ESpace "0.167em") = Just [Str "\x2009"] -expToInlines (ESpace "0.222em") = Just [Str "\x2005"] -expToInlines (ESpace "0.278em") = Just [Str "\x2004"] -expToInlines (ESpace "0.333em") = Just [Str "\x2004"] -expToInlines (ESpace "1em") = Just [Str "\x2001"] -expToInlines (ESpace "2em") = Just [Str "\x2001\x2001"] -expToInlines (ESpace _) = Just [Str " "] -expToInlines (EBinary _ _ _) = Nothing -expToInlines (ESub x y) = do - x' <- expToInlines x - y' <- expToInlines y - return $ x' ++ [Subscript y'] -expToInlines (ESuper x y) = do - x' <- expToInlines x - y' <- expToInlines y - return $ x' ++ [Superscript y'] -expToInlines (ESubsup x y z) = do - x' <- expToInlines x - y' <- expToInlines y - z' <- expToInlines z - return $ x' ++ [Subscript y'] ++ [Superscript z'] -expToInlines (EDown x y) = expToInlines (ESub x y) -expToInlines (EUp x y) = expToInlines (ESuper x y) -expToInlines (EDownup x y z) = expToInlines (ESubsup x y z) -expToInlines (EText TextNormal x) = Just [Str x] -expToInlines (EText TextBold x) = Just [Strong [Str x]] -expToInlines (EText TextMonospace x) = Just [Code nullAttr x] -expToInlines (EText TextItalic x) = Just [Emph [Str x]] -expToInlines (EText _ x) = Just [Str x] -expToInlines (EOver (EGrouped [EIdentifier [c]]) (ESymbol Accent [accent])) = - case accent of - '\x203E' -> Just [Emph [Str [c,'\x0304']]] -- bar - '\x00B4' -> Just [Emph [Str [c,'\x0301']]] -- acute - '\x0060' -> Just [Emph [Str [c,'\x0300']]] -- grave - '\x02D8' -> Just [Emph [Str [c,'\x0306']]] -- breve - '\x02C7' -> Just [Emph [Str [c,'\x030C']]] -- check - '.' -> Just [Emph [Str [c,'\x0307']]] -- dot - '\x00B0' -> Just [Emph [Str [c,'\x030A']]] -- ring - '\x20D7' -> Just [Emph [Str [c,'\x20D7']]] -- arrow right - '\x20D6' -> Just [Emph [Str [c,'\x20D6']]] -- arrow left - '\x005E' -> Just [Emph [Str [c,'\x0302']]] -- hat - '\x0302' -> Just [Emph [Str [c,'\x0302']]] -- hat - '~' -> Just [Emph [Str [c,'\x0303']]] -- tilde - _ -> Nothing -expToInlines _ = Nothing - - |