diff options
Diffstat (limited to 'src/Text/Pandoc/Writers/HTML.hs')
| -rw-r--r-- | src/Text/Pandoc/Writers/HTML.hs | 117 |
1 files changed, 74 insertions, 43 deletions
diff --git a/src/Text/Pandoc/Writers/HTML.hs b/src/Text/Pandoc/Writers/HTML.hs index c6d7b7f6a..ee1f260b6 100644 --- a/src/Text/Pandoc/Writers/HTML.hs +++ b/src/Text/Pandoc/Writers/HTML.hs @@ -28,7 +28,9 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Conversion of 'Pandoc' documents to HTML. -} -module Text.Pandoc.Writers.HTML ( writeHtml , writeHtmlString ) where +module Text.Pandoc.Writers.HTML ( + writeHtml4, writeHtml4String, + writeHtml5, writeHtml5String ) where import Text.Pandoc.Definition import Text.Pandoc.Walk import Data.Monoid ((<>)) @@ -80,12 +82,13 @@ data WriterState = WriterState , stHighlighting :: Bool -- ^ Syntax highlighting is used , stSecNum :: [Int] -- ^ Number of current section , stElement :: Bool -- ^ Processing an Element + , stHtml5 :: Bool -- ^ Use HTML5 } defaultWriterState :: WriterState defaultWriterState = WriterState {stNotes= [], stMath = False, stQuotes = False, stHighlighting = False, stSecNum = [], - stElement = False} + stElement = False, stHtml5 = False} -- Helpers to render HTML with the appropriate function. @@ -102,19 +105,35 @@ nl opts = if writerWrapText opts == WrapNone then mempty else preEscapedString "\n" --- | Convert Pandoc document to Html string. -writeHtmlString :: PandocMonad m => WriterOptions -> Pandoc -> m String -writeHtmlString opts d = do - (body, context) <- evalStateT (pandocToHtml opts d) defaultWriterState +-- | Convert Pandoc document to Html 5 string. +writeHtml5String :: PandocMonad m => WriterOptions -> Pandoc -> m String +writeHtml5String = writeHtmlString' True + +-- | Convert Pandoc document to Html 5 structure. +writeHtml5 :: PandocMonad m => WriterOptions -> Pandoc -> m Html +writeHtml5 = writeHtml' True + +-- | Convert Pandoc document to Html 4 string. +writeHtml4String :: PandocMonad m => WriterOptions -> Pandoc -> m String +writeHtml4String = writeHtmlString' False + +-- | Convert Pandoc document to Html 4 structure. +writeHtml4 :: PandocMonad m => WriterOptions -> Pandoc -> m Html +writeHtml4 = writeHtml' False + +writeHtmlString' :: PandocMonad m => Bool -> WriterOptions -> Pandoc -> m String +writeHtmlString' html5 opts d = do + (body, context) <- evalStateT (pandocToHtml opts d) + defaultWriterState{ stHtml5 = html5 } return $ case writerTemplate opts of Nothing -> renderHtml body Just tpl -> renderTemplate' tpl $ defField "body" (renderHtml body) context --- | Convert Pandoc document to Html structure. -writeHtml :: PandocMonad m => WriterOptions -> Pandoc -> m Html -writeHtml opts d = do - (body, context) <- evalStateT (pandocToHtml opts d) defaultWriterState +writeHtml' :: PandocMonad m => Bool -> WriterOptions -> Pandoc -> m Html +writeHtml' html5 opts d = do + (body, context) <- evalStateT (pandocToHtml opts d) + defaultWriterState{ stHtml5 = html5 } return $ case writerTemplate opts of Nothing -> body Just tpl -> renderTemplate' tpl $ @@ -144,8 +163,8 @@ pandocToHtml opts (Pandoc meta blocks) = do blocks' <- liftM (mconcat . intersperse (nl opts)) $ mapM (elementToHtml slideLevel opts) sects st <- get - let notes = reverse (stNotes st) - let thebody = blocks' >> footnoteSection opts notes + notes <- footnoteSection opts (reverse (stNotes st)) + let thebody = blocks' >> notes let math = case writerHTMLMathMethod opts of LaTeXMathML (Just url) -> H.script ! A.src (toValue url) @@ -172,7 +191,7 @@ pandocToHtml opts (Pandoc meta blocks) = do (H.link ! A.rel "stylesheet" ! A.href (toValue css)) <> (H.script ! A.type_ "text/javascript" $ toHtml renderKaTeX) _ -> case lookup "mathml-script" (writerVariables opts) of - Just s | not (writerHtml5 opts) -> + Just s | not (stHtml5 st) -> H.script ! A.type_ "text/javascript" $ preEscapedString ("/*<![CDATA[*/\n" ++ s ++ "/*]]>*/\n") @@ -199,7 +218,7 @@ pandocToHtml opts (Pandoc meta blocks) = do defField "slideous-url" ("slideous" :: String) $ defField "revealjs-url" ("reveal.js" :: String) $ defField "s5-url" ("s5/default" :: String) $ - defField "html5" (writerHtml5 opts) $ + defField "html5" (stHtml5 st) $ metadata return (thebody, context) @@ -277,6 +296,7 @@ elementToHtml slideLevel opts (Sec level num (id',classes,keyvals) title' elemen let slide = writerSlideVariant opts /= NoSlides && level <= slideLevel let num' = zipWith (+) num (writerNumberOffset opts ++ repeat 0) modify $ \st -> st{stSecNum = num'} -- update section number + html5 <- gets stHtml5 let titleSlide = slide && level < slideLevel header' <- if title' == [Str "\0"] -- marker for hrule then return mempty @@ -307,10 +327,10 @@ elementToHtml slideLevel opts (Sec level num (id',classes,keyvals) title' elemen let inNl x = mconcat $ nl opts : intersperse (nl opts) x ++ [nl opts] let classes' = ["titleslide" | titleSlide] ++ ["slide" | slide] ++ ["section" | (slide || writerSectionDivs opts) && - not (writerHtml5 opts) ] ++ + not html5 ] ++ ["level" ++ show level | slide || writerSectionDivs opts ] ++ classes - let secttag = if writerHtml5 opts + let secttag = if html5 then H5.section else H.div let attr = (id',classes',keyvals) @@ -327,19 +347,22 @@ elementToHtml slideLevel opts (Sec level num (id',classes,keyvals) title' elemen -- | Convert list of Note blocks to a footnote <div>. -- Assumes notes are sorted. -footnoteSection :: WriterOptions -> [Html] -> Html -footnoteSection opts notes = - if null notes - then mempty - else nl opts >> (container - $ nl opts >> hrtag >> nl opts >> - H.ol (mconcat notes >> nl opts) >> nl opts) - where container x = if writerHtml5 opts - then H5.section ! A.class_ "footnotes" $ x - else if writerSlideVariant opts /= NoSlides - then H.div ! A.class_ "footnotes slide" $ x - else H.div ! A.class_ "footnotes" $ x - hrtag = if writerHtml5 opts then H5.hr else H.hr +footnoteSection :: PandocMonad m + => WriterOptions -> [Html] -> StateT WriterState m Html +footnoteSection opts notes = do + html5 <- gets stHtml5 + let hrtag = if html5 then H5.hr else H.hr + let container x = if html5 + then H5.section ! A.class_ "footnotes" $ x + else if writerSlideVariant opts /= NoSlides + then H.div ! A.class_ "footnotes slide" $ x + else H.div ! A.class_ "footnotes" $ x + return $ + if null notes + then mempty + else nl opts >> (container + $ nl opts >> hrtag >> nl opts >> + H.ol (mconcat notes >> nl opts) >> nl opts) -- | Parse a mailto link; return Just (name, domain) or Nothing. parseMailto :: String -> Maybe (String, String) @@ -448,13 +471,14 @@ blockToHtml opts (Plain lst) = inlineListToHtml opts lst -- title beginning with fig: indicates that the image is a figure blockToHtml opts (Para [Image attr txt (s,'f':'i':'g':':':tit)]) = do img <- inlineToHtml opts (Image attr txt (s,tit)) - let tocapt = if writerHtml5 opts + html5 <- gets stHtml5 + let tocapt = if html5 then H5.figcaption else H.p ! A.class_ "caption" capt <- if null txt then return mempty else tocapt `fmap` inlineListToHtml opts txt - return $ if writerHtml5 opts + return $ if html5 then H5.figure $ mconcat [nl opts, img, capt, nl opts] else H.div ! A.class_ "figure" $ mconcat @@ -475,12 +499,13 @@ blockToHtml opts (LineBlock lns) = htmlLines <- mconcat . intersperse lf <$> mapM (inlineListToHtml opts) lns return $ H.div ! A.style "white-space: pre-line;" $ htmlLines blockToHtml opts (Div attr@(ident, classes, kvs) bs) = do + html5 <- gets stHtml5 let speakerNotes = "notes" `elem` classes -- we don't want incremental output inside speaker notes, see #1394 let opts' = if speakerNotes then opts{ writerIncremental = False } else opts contents <- blockListToHtml opts' bs let contents' = nl opts >> contents >> nl opts - let (divtag, classes') = if writerHtml5 opts && "section" `elem` classes + let (divtag, classes') = if html5 && "section" `elem` classes then (H5.section, filter (/= "section") classes) else (H.div, classes) return $ @@ -498,7 +523,9 @@ blockToHtml opts (RawBlock f str) allowsMathEnvironments (writerHTMLMathMethod opts) && isMathEnvironment str = blockToHtml opts $ Plain [Math DisplayMath str] | otherwise = return mempty -blockToHtml opts (HorizontalRule) = return $ if writerHtml5 opts then H5.hr else H.hr +blockToHtml _ (HorizontalRule) = do + html5 <- gets stHtml5 + return $ if html5 then H5.hr else H.hr blockToHtml opts (CodeBlock (id',classes,keyvals) rawCode) = do let tolhs = isEnabled Ext_literate_haskell opts && any (\c -> map toLower c == "haskell") classes && @@ -564,6 +591,7 @@ blockToHtml opts (BulletList lst) = do return $ unordList opts contents blockToHtml opts (OrderedList (startnum, numstyle, _) lst) = do contents <- mapM (blockListToHtml opts) lst + html5 <- gets stHtml5 let numstyle' = case numstyle of Example -> "decimal" _ -> camelCaseToHyphenated $ show numstyle @@ -574,7 +602,7 @@ blockToHtml opts (OrderedList (startnum, numstyle, _) lst) = do then [A.class_ "example"] else []) ++ (if numstyle /= DefaultStyle - then if writerHtml5 opts + then if html5 then [A.type_ $ case numstyle of Decimal -> "1" @@ -603,6 +631,7 @@ blockToHtml opts (Table capt aligns widths headers rows') = do else do cs <- inlineListToHtml opts capt return $ H.caption cs >> nl opts + html5 <- gets stHtml5 let percent w = show (truncate (100*w) :: Integer) ++ "%" let coltags = if all (== 0.0) widths then mempty @@ -610,7 +639,7 @@ blockToHtml opts (Table capt aligns widths headers rows') = do H.colgroup $ do nl opts mapM_ (\w -> do - if writerHtml5 opts + if html5 then H.col ! A.style (toValue $ "width: " ++ percent w) else H.col ! A.width (toValue $ percent w) @@ -666,8 +695,9 @@ tableItemToHtml :: PandocMonad m -> StateT WriterState m Html tableItemToHtml opts tag' align' item = do contents <- blockListToHtml opts item + html5 <- gets stHtml5 let alignStr = alignmentToString align' - let attribs = if writerHtml5 opts + let attribs = if html5 then A.style (toValue $ "text-align: " ++ alignStr ++ ";") else A.align (toValue alignStr) let tag'' = if null alignStr @@ -707,7 +737,8 @@ annotateMML e tex = math (unode "semantics" [cs, unode "annotation" (annotAttrs, -- | Convert Pandoc inline element to HTML. inlineToHtml :: PandocMonad m => WriterOptions -> Inline -> StateT WriterState m Html -inlineToHtml opts inline = +inlineToHtml opts inline = do + html5 <- gets stHtml5 case inline of (Str str) -> return $ strToHtml str (Space) -> return $ strToHtml " " @@ -715,7 +746,7 @@ inlineToHtml opts inline = WrapNone -> preEscapedString " " WrapAuto -> preEscapedString " " WrapPreserve -> preEscapedString "\n" - (LineBreak) -> return $ (if writerHtml5 opts then H5.br else H.br) + (LineBreak) -> return $ (if html5 then H5.br else H.br) <> strToHtml "\n" (Span (id',classes,kvs) ils) -> inlineListToHtml opts ils >>= @@ -784,12 +815,12 @@ inlineToHtml opts inline = InlineMath -> H.span ! A.class_ mathClass $ m DisplayMath -> H.div ! A.class_ mathClass $ m WebTeX url -> do - let imtag = if writerHtml5 opts then H5.img else H.img + let imtag = if html5 then H5.img else H.img let m = imtag ! A.style "vertical-align:middle" ! A.src (toValue $ url ++ urlEncode str) ! A.alt (toValue str) ! A.title (toValue str) - let brtag = if writerHtml5 opts then H5.br else H.br + let brtag = if html5 then H5.br else H.br return $ case t of InlineMath -> m DisplayMath -> brtag >> m >> brtag @@ -817,7 +848,7 @@ inlineToHtml opts inline = PlainMath -> do x <- lift (texMathToInlines t str) >>= inlineListToHtml opts let m = H.span ! A.class_ mathClass $ x - let brtag = if writerHtml5 opts then H5.br else H.br + let brtag = if html5 then H5.br else H.br return $ case t of InlineMath -> m DisplayMath -> brtag >> m >> brtag @@ -847,7 +878,7 @@ inlineToHtml opts inline = [A.title $ toValue tit | not (null tit)] ++ [A.alt $ toValue alternate' | not (null txt)] ++ imgAttrsToHtml opts attr - let tag = if writerHtml5 opts then H5.img else H.img + let tag = if html5 then H5.img else H.img return $ foldl (!) tag attributes -- note: null title included, as in Markdown.pl (Image attr _ (s,tit)) -> do @@ -880,7 +911,7 @@ inlineToHtml opts inline = (Cite cits il)-> do contents <- inlineListToHtml opts il let citationIds = unwords $ map citationId cits let result = H.span ! A.class_ "citation" $ contents - return $ if writerHtml5 opts + return $ if html5 then result ! customAttribute "data-cites" (toValue citationIds) else result |