diff options
Diffstat (limited to 'src/Text/Pandoc/Highlighting.hs')
| -rw-r--r-- | src/Text/Pandoc/Highlighting.hs | 63 |
1 files changed, 40 insertions, 23 deletions
diff --git a/src/Text/Pandoc/Highlighting.hs b/src/Text/Pandoc/Highlighting.hs index 896682389..113727750 100644 --- a/src/Text/Pandoc/Highlighting.hs +++ b/src/Text/Pandoc/Highlighting.hs @@ -1,5 +1,5 @@ {- -Copyright (C) 2008-2016 John MacFarlane <jgm@berkeley.edu> +Copyright (C) 2008-2018 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 @@ -18,7 +18,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA {- | Module : Text.Pandoc.Highlighting - Copyright : Copyright (C) 2008-2016 John MacFarlane + Copyright : Copyright (C) 2008-2018 John MacFarlane License : GNU GPL, version 2 or above Maintainer : John MacFarlane <jgm@berkeley.edu> @@ -28,7 +28,8 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Exports functions for syntax highlighting. -} -module Text.Pandoc.Highlighting ( languages +module Text.Pandoc.Highlighting ( highlightingStyles + , languages , languagesByExtension , highlight , formatLaTeXInline @@ -48,14 +49,25 @@ module Text.Pandoc.Highlighting ( languages , fromListingsLanguage , toListingsLanguage ) where -import Text.Pandoc.Definition -import Text.Pandoc.Shared (safeRead) -import Skylighting -import Data.Maybe (fromMaybe) +import Control.Monad import Data.Char (toLower) import qualified Data.Map as M -import Control.Monad +import Data.Maybe (fromMaybe) import qualified Data.Text as T +import Skylighting +import Text.Pandoc.Definition +import Text.Pandoc.Shared (safeRead) + +highlightingStyles :: [(String, Style)] +highlightingStyles = + [("pygments", pygments), + ("tango", tango), + ("espresso", espresso), + ("zenburn", zenburn), + ("kate", kate), + ("monochrome", monochrome), + ("breezedark", breezeDark), + ("haddock", haddock)] languages :: [String] languages = [T.unpack (T.toLower (sName s)) | s <- M.elems defaultSyntaxMap] @@ -64,34 +76,39 @@ languagesByExtension :: String -> [String] languagesByExtension ext = [T.unpack (T.toLower (sName s)) | s <- syntaxesByExtension defaultSyntaxMap ext] -highlight :: (FormatOptions -> [SourceLine] -> a) -- ^ Formatter +highlight :: SyntaxMap + -> (FormatOptions -> [SourceLine] -> a) -- ^ Formatter -> Attr -- ^ Attributes of the CodeBlock -> String -- ^ Raw contents of the CodeBlock - -> Maybe a -- ^ Maybe the formatted result -highlight formatter (_, classes, keyvals) rawCode = + -> Either String a +highlight syntaxmap formatter (ident, classes, keyvals) rawCode = let firstNum = fromMaybe 1 (safeRead (fromMaybe "1" $ lookup "startFrom" keyvals)) fmtOpts = defaultFormatOpts{ startNumber = firstNum, + lineAnchors = any (`elem` + ["line-anchors", "lineAnchors"]) classes, numberLines = any (`elem` - ["number","numberLines", "number-lines"]) classes } - tokenizeOpts = TokenizerConfig{ syntaxMap = defaultSyntaxMap + ["number","numberLines", "number-lines"]) classes, + lineIdPrefix = if null ident + then mempty + else T.pack (ident ++ "-") } + tokenizeOpts = TokenizerConfig{ syntaxMap = syntaxmap , traceOutput = False } classes' = map T.pack classes rawCode' = T.pack rawCode - in case msum (map (\l -> lookupSyntax l defaultSyntaxMap) classes') of + in case msum (map (`lookupSyntax` syntaxmap) classes') of Nothing - | numberLines fmtOpts -> Just + | numberLines fmtOpts -> Right $ formatter fmtOpts{ codeClasses = [], containerClasses = classes' } - $ map (\ln -> [(NormalTok, ln)]) $ T.lines rawCode' - | otherwise -> Nothing + $ map (\ln -> [(NormalTok, ln)]) + $ T.lines rawCode' + | otherwise -> Left "" Just syntax -> - case tokenize tokenizeOpts syntax rawCode' of - Right slines -> Just $ - formatter fmtOpts{ codeClasses = - [T.toLower (sShortname syntax)], - containerClasses = classes' } slines - Left _ -> Nothing + formatter fmtOpts{ codeClasses = + [T.toLower (sShortname syntax)], + containerClasses = classes' } <$> + tokenize tokenizeOpts syntax rawCode' -- Functions for correlating latex listings package's language names -- with skylighting language names: |