diff options
| -rw-r--r-- | src/Text/Pandoc/Shared.hs | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/src/Text/Pandoc/Shared.hs b/src/Text/Pandoc/Shared.hs index f27c3ae75..811978476 100644 --- a/src/Text/Pandoc/Shared.hs +++ b/src/Text/Pandoc/Shared.hs @@ -45,6 +45,8 @@ module Text.Pandoc.Shared ( toRomanNumeral, wrapped, wrapIfNeeded, + wrappedTeX, + wrapTeXIfNeeded, -- * Parsing (>>~), anyLine, @@ -96,7 +98,8 @@ module Text.Pandoc.Shared ( import Text.Pandoc.Definition import Text.ParserCombinators.Parsec -import Text.PrettyPrint.HughesPJ ( Doc, fsep ) +import Text.PrettyPrint.HughesPJ ( Doc, fsep, ($$), (<>), empty ) +import qualified Text.PrettyPrint.HughesPJ as PP import Text.Pandoc.CharacterReferences ( characterReference ) import Data.Char ( toLower, toUpper, ord, isLower, isUpper ) import Data.List ( find, isPrefixOf ) @@ -211,12 +214,40 @@ wrapped :: Monad m => ([Inline] -> m Doc) -> [Inline] -> m Doc wrapped listWriter sect = (mapM listWriter $ splitBy Space sect) >>= return . fsep +-- | Wrap inlines if the text wrap option is selected. wrapIfNeeded :: Monad m => WriterOptions -> ([Inline] -> m Doc) -> [Inline] -> m Doc wrapIfNeeded opts = if writerWrapText opts then wrapped else ($) +-- auxiliary function for wrappedTeX +isNote (Note _) = True +isNote _ = False + +-- | Wrap inlines to line length, treating footnotes in a way that +-- makes sense in LaTeX and ConTeXt. +wrappedTeX :: Monad m => ([Inline] -> m Doc) -> [Inline] -> m Doc +wrappedTeX listWriter sect = do + let (firstpart, rest) = break isNote sect + firstpartWrapped <- wrapped listWriter firstpart + if null rest + then return firstpartWrapped + else do let (note:rest') = rest + restWrapped <- if null rest' + then return empty + else wrappedTeX listWriter rest' + noteText <- listWriter [note] + return $ firstpartWrapped <> PP.char '%' $$ noteText $$ restWrapped + +-- | Wrap inlines if the text wrap option is selected, specialized +-- for LaTeX and ConTeXt. +wrapTeXIfNeeded :: Monad m => WriterOptions -> ([Inline] -> m Doc) -> + [Inline] -> m Doc +wrapTeXIfNeeded opts = if writerWrapText opts + then wrappedTeX + else ($) + -- -- Parsing -- |