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-{-# LANGUAGE CPP #-}
-{-
-Copyright (C) 2008 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
--}
-
-{- |
- Module : Text.Pandoc.Highlighting
- Copyright : Copyright (C) 2008 John MacFarlane
- License : GNU GPL, version 2 or above
-
- Maintainer : John MacFarlane <jgm@berkeley.edu>
- Stability : alpha
- Portability : portable
-
-Exports functions for syntax highlighting.
--}
-
-module Text.Pandoc.Highlighting ( languages, highlightHtml, defaultHighlightingCss ) where
-import Text.XHtml
-import Text.Pandoc.Definition
-#ifdef _HIGHLIGHTING
-import Text.Highlighting.Kate ( languages, highlightAs, formatAsXHtml, FormatOption (..), defaultHighlightingCss )
-import Data.List (find, lookup)
-import Data.Maybe (fromMaybe)
-import Data.Char (toLower)
-
-highlightHtml :: Attr -> String -> Either String Html
-highlightHtml (_, classes, keyvals) rawCode =
- let firstNum = read $ fromMaybe "1" $ lookup "startFrom" keyvals
- fmtOpts = [OptNumberFrom firstNum] ++
- case find (`elem` ["number","numberLines","number-lines"]) classes of
- Nothing -> []
- Just _ -> [OptNumberLines]
- lcLanguages = map (map toLower) languages
- in case find (\c -> (map toLower c) `elem` lcLanguages) classes of
- Nothing -> Left "Unknown or unsupported language"
- Just language -> case highlightAs language rawCode of
- Left err -> Left err
- Right hl -> Right $ formatAsXHtml fmtOpts language hl
-
-#else
-defaultHighlightingCss :: String
-defaultHighlightingCss = ""
-
-languages :: [String]
-languages = []
-
-highlightHtml :: Attr -> String -> Either String Html
-highlightHtml _ _ = Left "Pandoc was not compiled with support for highlighting"
-#endif