diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/Text/Pandoc/Writers/Markdown.hs | 76 |
1 files changed, 41 insertions, 35 deletions
diff --git a/src/Text/Pandoc/Writers/Markdown.hs b/src/Text/Pandoc/Writers/Markdown.hs index d8ac99685..e464d63b5 100644 --- a/src/Text/Pandoc/Writers/Markdown.hs +++ b/src/Text/Pandoc/Writers/Markdown.hs @@ -46,10 +46,8 @@ import Text.Pandoc.Readers.TeXMath (readTeXMath) import Text.HTML.TagSoup (renderTags, parseTags, isTagText, Tag(..)) import Network.URI (isAbsoluteURI) import Data.Default -import Data.Yaml (Value(Object,String,Array,Bool,Number)) -import qualified Data.HashMap.Strict as H -import qualified Data.Vector as V -import qualified Data.Text as T +import qualified Data.Map as M +import Control.Applicative ((<$>)) type Notes = [[Block]] type Refs = [([Inline], Target)] @@ -113,21 +111,34 @@ plainTitleBlock tit auths dat = (hcat (intersperse (text "; ") auths)) <> cr <> dat <> cr -yamlTitleBlock :: Value -> Doc -yamlTitleBlock v = "---" $$ (jsonToYaml v) $$ "..." - -jsonToYaml :: Value -> Doc -jsonToYaml (Object hashmap) = - vcat (map (\(k,v) -> - text (T.unpack k) <> ":" <> space <> jsonToYaml v) $ H.toList hashmap) -jsonToYaml (Array vec) = - cr <> vcat (map (\v -> hang 2 "- " (jsonToYaml v)) $ V.toList vec) -jsonToYaml (String s) - | "\n" `T.isInfixOf` s = hang 2 ("|" <> cr) $ text $ T.unpack s - | otherwise = text $ "'" ++ substitute "'" "''" (T.unpack s) ++ "'" -jsonToYaml (Bool b) = text $ show b -jsonToYaml (Number n) = text $ show n -jsonToYaml _ = empty +yamlTitleBlock :: WriterOptions -> Meta -> State WriterState Doc +yamlTitleBlock opts (Meta metamap) = do + m <- jsonToYaml opts (MetaMap metamap) + return $ "---" $$ m $$ "..." + +jsonToYaml :: WriterOptions -> MetaValue -> State WriterState Doc +jsonToYaml opts (MetaMap metamap) = vcat + <$> mapM (\(k,v) -> ((text k <> ":") <>) <$> + case v of + (MetaList _) -> (cr <>) <$> jsonToYaml opts v + (MetaMap _) -> ((cr <>) . nest 2) <$> jsonToYaml opts v + _ -> (space <> ) <$> jsonToYaml opts v) + (M.toList metamap) +jsonToYaml opts (MetaList xs) = vcat + <$> mapM (\v -> hang 2 "- " <$> (jsonToYaml opts v)) xs +jsonToYaml _ (MetaString s) + | '\n' `elem` s = return $ hang 2 ("|" <> cr) $ text s + | otherwise = return $ text $ "'" ++ substitute "'" "''" s ++ "'" +jsonToYaml opts (MetaInlines ils) = + inlineListToMarkdown opts ils >>= jsonToYaml opts . MetaString . render' opts +jsonToYaml opts (MetaBlocks bs) = + blockListToMarkdown opts bs >>= jsonToYaml opts . MetaString . render' opts + +render' :: WriterOptions -> Doc -> String +render' opts = render colwidth + where colwidth = if writerWrapText opts + then Just $ writerColumns opts + else Nothing -- | Return markdown representation of document. pandocToMarkdown :: WriterOptions -> Pandoc -> State WriterState String @@ -135,25 +146,22 @@ pandocToMarkdown opts (Pandoc meta blocks) = do title' <- inlineListToMarkdown opts $ docTitle meta authors' <- mapM (inlineListToMarkdown opts) $ docAuthors meta date' <- inlineListToMarkdown opts $ docDate meta - let colwidth = if writerWrapText opts - then Just $ writerColumns opts - else Nothing metadata <- metaToJSON - (fmap (render colwidth) . blockListToMarkdown opts) - (fmap (render colwidth) . inlineListToMarkdown opts) + (fmap (render' opts) . blockListToMarkdown opts) + (fmap (render' opts) . inlineListToMarkdown opts) (writerVariables opts) meta isPlain <- gets stPlain - let titleblock = case True of + titleblock <- case True of _ | isPlain -> - plainTitleBlock title' authors' date' + return $ plainTitleBlock title' authors' date' | isEnabled Ext_yaml_title_block opts -> - yamlTitleBlock metadata + yamlTitleBlock opts meta | isEnabled Ext_pandoc_title_block opts -> - pandocTitleBlock title' authors' date' + return $ pandocTitleBlock title' authors' date' | isEnabled Ext_mmd_title_block opts -> - mmdTitleBlock title' authors' date' - | otherwise -> empty + return $ mmdTitleBlock title' authors' date' + | otherwise -> return empty let headerBlocks = filter isHeaderBlock blocks let toc = if writerTableOfContents opts then tableOfContents opts headerBlocks @@ -163,16 +171,14 @@ pandocToMarkdown opts (Pandoc meta blocks) = do notes' <- notesToMarkdown opts (reverse $ stNotes st) st' <- get -- note that the notes may contain refs refs' <- refsToMarkdown opts (reverse $ stRefs st') - let render' :: Doc -> String - render' = render colwidth - let main = render' $ body <> + let main = render' opts $ body <> (if isEmpty notes' then empty else blankline <> notes') <> (if isEmpty refs' then empty else blankline <> refs') - let context = defField "toc" (render' toc) + let context = defField "toc" (render' opts toc) $ defField "body" main $ (if not (null (docTitle meta) && null (docAuthors meta) && null (docDate meta)) - then defField "titleblock" (render' titleblock) + then defField "titleblock" (render' opts titleblock) else id) $ metadata if writerStandalone opts |