diff options
Diffstat (limited to 'src/Text/Pandoc/Writers/HTML.hs')
| -rw-r--r-- | src/Text/Pandoc/Writers/HTML.hs | 374 |
1 files changed, 220 insertions, 154 deletions
diff --git a/src/Text/Pandoc/Writers/HTML.hs b/src/Text/Pandoc/Writers/HTML.hs index 6f91d1965..8c5548196 100644 --- a/src/Text/Pandoc/Writers/HTML.hs +++ b/src/Text/Pandoc/Writers/HTML.hs @@ -28,7 +28,6 @@ module Text.Pandoc.Writers.HTML ( writeRevealJs, tagWithAttributes ) where -import Control.Monad.Identity (runIdentity) import Control.Monad.State.Strict import Data.Char (ord) import Data.List (intercalate, intersperse, partition, delete, (\\), foldl') @@ -38,10 +37,9 @@ import qualified Data.Set as Set import Data.Text (Text) import qualified Data.Text as T import qualified Data.Text.Lazy as TL -import Network.HTTP (urlEncode) import Network.URI (URI (..), parseURIReference) import Numeric (showHex) -import Text.DocLayout (render, literal) +import Text.DocLayout (render, literal, Doc) import Text.Blaze.Internal (MarkupM (Empty), customLeaf, customParent) import Text.DocTemplates (FromContext (lookupContext), Context (..)) import Text.Blaze.Html hiding (contents) @@ -52,11 +50,12 @@ import Text.Pandoc.ImageSize import Text.Pandoc.Options import Text.Pandoc.Shared import Text.Pandoc.Slides -import Text.Pandoc.Templates (Template, compileTemplate, renderTemplate) +import Text.Pandoc.Templates (renderTemplate) import Text.Pandoc.Walk import Text.Pandoc.Writers.Math import Text.Pandoc.Writers.Shared import qualified Text.Pandoc.Writers.AnnotatedTable as Ann +import Text.Pandoc.Network.HTTP (urlEncode) import Text.Pandoc.XML (escapeStringForXML, fromEntities, toEntities, html5Attributes, html4Attributes, rdfaAttributes) import qualified Text.Blaze.XHtml5 as H5 @@ -71,13 +70,16 @@ import Text.Pandoc.Class.PandocPure (runPure) import Text.Pandoc.Error import Text.Pandoc.Logging import Text.Pandoc.MIME (mediaCategory) +import Text.Pandoc.Writers.Blaze (layoutMarkup) import Text.TeXMath import Text.XML.Light (elChildren, unode, unqual) import qualified Text.XML.Light as XML import Text.XML.Light.Output +import Data.String (fromString) data WriterState = WriterState { stNotes :: [Html] -- ^ List of notes + , stEmittedNotes :: Int -- ^ How many notes we've already pushed out to the HTML , stMath :: Bool -- ^ Math is used in document , stQuotes :: Bool -- ^ <q> tag is used , stHighlighting :: Bool -- ^ Syntax highlighting is used @@ -89,10 +91,11 @@ data WriterState = WriterState , stCodeBlockNum :: Int -- ^ Number of code block , stCsl :: Bool -- ^ Has CSL references , stCslEntrySpacing :: Maybe Int -- ^ CSL entry spacing + , stBlockLevel :: Int -- ^ Current block depth, excluding section divs } defaultWriterState :: WriterState -defaultWriterState = WriterState {stNotes= [], stMath = False, stQuotes = False, +defaultWriterState = WriterState {stNotes= [], stEmittedNotes = 0, stMath = False, stQuotes = False, stHighlighting = False, stHtml5 = False, stEPUBVersion = Nothing, @@ -101,7 +104,8 @@ defaultWriterState = WriterState {stNotes= [], stMath = False, stQuotes = False, stInSection = False, stCodeBlockNum = 0, stCsl = False, - stCslEntrySpacing = Nothing} + stCslEntrySpacing = Nothing, + stBlockLevel = 0} -- Helpers to render HTML with the appropriate function. @@ -128,10 +132,8 @@ needsVariationSelector '↔' = True needsVariationSelector _ = False -- | Hard linebreak. -nl :: WriterOptions -> Html -nl opts = if writerWrapText opts == WrapNone - then mempty - else preEscapedString "\n" +nl :: Html +nl = preEscapedString "\n" -- | Convert Pandoc document to Html 5 string. writeHtml5String :: PandocMonad m => WriterOptions -> Pandoc -> m Text @@ -157,7 +159,8 @@ writeHtmlStringForEPUB :: PandocMonad m -> m Text writeHtmlStringForEPUB version o = writeHtmlString' defaultWriterState{ stHtml5 = version == EPUB3, - stEPUBVersion = Just version } o + stEPUBVersion = Just version } + o{ writerWrapText = WrapNone } -- | Convert Pandoc document to Reveal JS HTML slide show. writeRevealJs :: PandocMonad m @@ -204,20 +207,23 @@ writeHtmlString' :: PandocMonad m => WriterState -> WriterOptions -> Pandoc -> m Text writeHtmlString' st opts d = do (body, context) <- evalStateT (pandocToHtml opts d) st - let defaultTemplate = fmap (const tocTemplate) (getField "table-of-contents" context :: Maybe Text) - let template = msum [ writerTemplate opts - , defaultTemplate ] + let colwidth = case writerWrapText opts of + WrapAuto -> Just (writerColumns opts) + _ -> Nothing (if writerPreferAscii opts then toEntities else id) <$> - case template of - Nothing -> return $ renderHtml' body + case writerTemplate opts of + Nothing -> return $ + case colwidth of + Nothing -> renderHtml' body -- optimization, skip layout + Just cols -> render (Just cols) $ layoutMarkup body Just tpl -> do -- warn if empty lang when (isNothing (getField "lang" context :: Maybe Text)) $ report NoLangSpecified -- check for empty pagetitle - context' <- + (context' :: Context Text) <- case getField "pagetitle" context of Just (s :: Text) | not (T.null s) -> return context _ -> do @@ -228,9 +234,9 @@ writeHtmlString' st opts d = do Just [] -> "Untitled" Just (x:_) -> takeBaseName $ T.unpack x report $ NoTitleElement fallback - return $ resetField "pagetitle" fallback context - return $ render Nothing $ renderTemplate tpl - (defField "body" (renderHtml' body) context') + return $ resetField "pagetitle" (literal fallback) context + return $ render colwidth $ renderTemplate tpl + (defField "body" (layoutMarkup body) context') writeHtml' :: PandocMonad m => WriterState -> WriterOptions -> Pandoc -> m Html writeHtml' st opts d = @@ -243,13 +249,6 @@ writeHtml' st opts d = (body, _) <- evalStateT (pandocToHtml opts d) st return body -wantTOC :: Meta -> Maybe Bool -wantTOC = fmap (== MetaBool True) . lookupMeta "tableOfContents" - -tocTemplate :: Template Text -tocTemplate = either error id . runIdentity . compileTemplate "" $ - "<div class=\"toc\"><h1></h1>$table-of-contents$</div>$body$" - -- result is (title, authors, date, toc, body, new variables) pandocToHtml :: PandocMonad m => WriterOptions @@ -259,13 +258,13 @@ pandocToHtml opts (Pandoc meta blocks) = do let slideLevel = fromMaybe (getSlideLevel blocks) $ writerSlideLevel opts modify $ \st -> st{ stSlideLevel = slideLevel } metadata <- metaToContext opts - (fmap (literal . renderHtml') . blockListToHtml opts) - (fmap (literal . renderHtml') . inlineListToHtml opts) + (fmap layoutMarkup . blockListToHtml opts) + (fmap layoutMarkup . inlineListToHtml opts) meta let stringifyHTML = escapeStringForXML . stringify - let authsMeta = map stringifyHTML $ docAuthors meta + let authsMeta = map (literal . stringifyHTML) $ docAuthors meta let dateMeta = stringifyHTML $ docDate meta - let descriptionMeta = escapeStringForXML $ + let descriptionMeta = literal $ escapeStringForXML $ lookupMetaString "description" meta slideVariant <- gets stSlideVariant let sects = adjustNumbers opts $ @@ -273,15 +272,22 @@ pandocToHtml opts (Pandoc meta blocks) = do if slideVariant == NoSlides then blocks else prepSlides slideLevel blocks - let withTOC = fromMaybe (writerTableOfContents opts) (wantTOC meta) - toc <- if withTOC && slideVariant /= S5Slides - then fmap renderHtml' <$> tableOfContents opts sects + toc <- if writerTableOfContents opts && slideVariant /= S5Slides + then fmap layoutMarkup <$> tableOfContents opts sects else return Nothing blocks' <- blockListToHtml opts sects + notes <- do + -- make the st private just to be safe, since we modify it right afterwards + st <- get + if null (stNotes st) + then return mempty + else do + notes <- footnoteSection EndOfDocument (stEmittedNotes st + 1) (reverse (stNotes st)) + modify (\st' -> st'{ stNotes = mempty, stEmittedNotes = stEmittedNotes st' + length (stNotes st') }) + return notes st <- get - notes <- footnoteSection opts (reverse (stNotes st)) let thebody = blocks' >> notes - let math = case writerHTMLMathMethod opts of + let math = layoutMarkup $ case writerHTMLMathMethod opts of MathJax url | slideVariant /= RevealJsSlides -> -- mathjax is handled via a special plugin in revealjs @@ -295,10 +301,10 @@ pandocToHtml opts (Pandoc meta blocks) = do KaTeX url -> do H.script ! A.src (toValue $ url <> "katex.min.js") $ mempty - nl opts + nl let katexFlushLeft = case lookupContext "classoption" metadata of - Just clsops | "fleqn" `elem` (clsops :: [Text]) -> "true" + Just clsops | "fleqn" `elem` (clsops :: [Doc Text]) -> "true" _ -> "false" H.script $ text $ T.unlines [ "document.addEventListener(\"DOMContentLoaded\", function () {" @@ -315,7 +321,7 @@ pandocToHtml opts (Pandoc meta blocks) = do , " });" , "}}});" ] - nl opts + nl H.link ! A.rel "stylesheet" ! A.href (toValue $ url <> "katex.min.css") @@ -324,15 +330,16 @@ pandocToHtml opts (Pandoc meta blocks) = do Just s | not (stHtml5 st) -> H.script ! A.type_ "text/javascript" $ preEscapedString - ("/*<![CDATA[*/\n" ++ T.unpack s ++ + ("/*<![CDATA[*/\n" <> T.unpack s <> "/*]]>*/\n") | otherwise -> mempty Nothing -> mempty let mCss :: Maybe [Text] = lookupContext "css" metadata - let context = (if stHighlighting st + let context :: Context Text + context = (if stHighlighting st then case writerHighlightStyle opts of Just sty -> defField "highlighting-css" - (T.pack $ styleToCss sty) + (literal $ T.pack $ styleToCss sty) Nothing -> id else id) . (if stCsl st @@ -342,15 +349,15 @@ pandocToHtml opts (Pandoc meta blocks) = do Just 0 -> id Just n -> defField "csl-entry-spacing" - (tshow n <> "em")) + (literal $ tshow n <> "em")) else id) . (if stMath st - then defField "math" (renderHtml' math) + then defField "math" math else id) . (case writerHTMLMathMethod opts of MathJax u -> defField "mathjax" True . defField "mathjaxurl" - (T.takeWhile (/='?') u) + (literal $ T.takeWhile (/='?') u) _ -> defField "mathjax" False) . (case writerHTMLMathMethod opts of PlainMath -> defField "displaymath-css" True @@ -361,13 +368,14 @@ pandocToHtml opts (Pandoc meta blocks) = do -- template can't distinguish False/undefined defField "controls" True . defField "controlsTutorial" True . - defField "controlsLayout" ("bottom-right" :: Text) . - defField "controlsBackArrows" ("faded" :: Text) . + defField "controlsLayout" + ("bottom-right" :: Doc Text) . + defField "controlsBackArrows" ("faded" :: Doc Text) . defField "progress" True . defField "slideNumber" False . - defField "showSlideNumber" ("all" :: Text) . + defField "showSlideNumber" ("all" :: Doc Text) . defField "hashOneBasedIndex" False . - defField "hash" False . + defField "hash" True . defField "respondToHashChanges" True . defField "history" False . defField "keyboard" True . @@ -377,7 +385,7 @@ pandocToHtml opts (Pandoc meta blocks) = do defField "touch" True . defField "loop" False . defField "rtl" False . - defField "navigationMode" ("default" :: Text) . + defField "navigationMode" ("default" :: Doc Text) . defField "shuffle" False . defField "fragments" True . defField "fragmentInURL" True . @@ -385,22 +393,22 @@ pandocToHtml opts (Pandoc meta blocks) = do defField "help" True . defField "pause" True . defField "showNotes" False . - defField "autoPlayMedia" ("null" :: Text) . - defField "preloadIframes" ("null" :: Text) . - defField "autoSlide" ("0" :: Text) . + defField "autoPlayMedia" ("null" :: Doc Text) . + defField "preloadIframes" ("null" :: Doc Text) . + defField "autoSlide" ("0" :: Doc Text) . defField "autoSlideStoppable" True . - defField "autoSlideMethod" ("null" :: Text) . - defField "defaultTiming" ("null" :: Text) . + defField "autoSlideMethod" ("null" :: Doc Text) . + defField "defaultTiming" ("null" :: Doc Text) . defField "mouseWheel" False . - defField "display" ("block" :: Text) . + defField "display" ("block" :: Doc Text) . defField "hideInactiveCursor" True . - defField "hideCursorTime" ("5000" :: Text) . + defField "hideCursorTime" ("5000" :: Doc Text) . defField "previewLinks" False . - defField "transition" ("slide" :: Text) . - defField "transitionSpeed" ("default" :: Text) . - defField "backgroundTransition" ("fade" :: Text) . - defField "viewDistance" ("3" :: Text) . - defField "mobileViewDistance" ("2" :: Text) + defField "transition" ("slide" :: Doc Text) . + defField "transitionSpeed" ("default" :: Doc Text) . + defField "backgroundTransition" ("fade" :: Doc Text) . + defField "viewDistance" ("3" :: Doc Text) . + defField "mobileViewDistance" ("2" :: Doc Text) else id) . defField "document-css" (isNothing mCss && slideVariant == NoSlides) . defField "quotes" (stQuotes st) . @@ -410,18 +418,18 @@ pandocToHtml opts (Pandoc meta blocks) = do maybe id (defField "toc") toc . maybe id (defField "table-of-contents") toc . defField "author-meta" authsMeta . - maybe id (defField "date-meta") + maybe id (defField "date-meta" . literal) (normalizeDate dateMeta) . defField "description-meta" descriptionMeta . defField "pagetitle" - (stringifyHTML . docTitle $ meta) . - defField "idprefix" (writerIdentifierPrefix opts) . + (literal . stringifyHTML . docTitle $ meta) . + defField "idprefix" (literal $ writerIdentifierPrefix opts) . -- these should maybe be set in pandoc.hs defField "slidy-url" - ("https://www.w3.org/Talks/Tools/Slidy2" :: Text) . - defField "slideous-url" ("slideous" :: Text) . - defField "revealjs-url" ("https://unpkg.com/reveal.js@^4/" :: Text) $ - defField "s5-url" ("s5/default" :: Text) . + ("https://www.w3.org/Talks/Tools/Slidy2" :: Doc Text) . + defField "slideous-url" ("slideous" :: Doc Text) . + defField "revealjs-url" ("https://unpkg.com/reveal.js@^4/" :: Doc Text) $ + defField "s5-url" ("s5/default" :: Doc Text) . defField "html5" (stHtml5 st) $ metadata return (thebody, context) @@ -449,15 +457,15 @@ toList listop opts items = do unordList :: PandocMonad m => WriterOptions -> [Html] -> StateT WriterState m Html -unordList opts = toList H.ul opts . toListItems opts +unordList opts = toList H.ul opts . toListItems ordList :: PandocMonad m => WriterOptions -> [Html] -> StateT WriterState m Html -ordList opts = toList H.ol opts . toListItems opts +ordList opts = toList H.ol opts . toListItems defList :: PandocMonad m => WriterOptions -> [Html] -> StateT WriterState m Html -defList opts items = toList H.dl opts (items ++ [nl opts]) +defList opts items = toList H.dl opts (items ++ [nl]) isTaskListItem :: [Block] -> Bool isTaskListItem (Plain (Str "☐":Space:_):_) = True @@ -479,7 +487,7 @@ listItemToHtml opts bls let checkbox = if checked then checkbox' ! A.checked "" else checkbox' - checkbox' = H.input ! A.type_ "checkbox" ! A.disabled "" >> nl opts + checkbox' = H.input ! A.type_ "checkbox" ! A.disabled "" >> nl isContents <- inlineListToHtml opts is bsContents <- blockListToHtml opts bs return $ constr (checkbox >> isContents) >> bsContents @@ -502,28 +510,45 @@ tableOfContents opts sects = do -- | Convert list of Note blocks to a footnote <div>. -- Assumes notes are sorted. -footnoteSection :: PandocMonad m - => WriterOptions -> [Html] -> StateT WriterState m Html -footnoteSection opts notes = do +footnoteSection :: + PandocMonad m => ReferenceLocation -> Int -> [Html] -> StateT WriterState m Html +footnoteSection refLocation startCounter notes = do html5 <- gets stHtml5 slideVariant <- gets stSlideVariant - let hrtag = if html5 then H5.hr else H.hr + let hrtag = if refLocation /= EndOfBlock + then (if html5 then H5.hr else H.hr) <> nl + else mempty + let additionalClassName = case refLocation of + EndOfBlock -> "footnotes-end-of-block" + EndOfDocument -> "footnotes-end-of-document" + EndOfSection -> "footnotes-end-of-section" + let className = "footnotes " <> additionalClassName epubVersion <- gets stEPUBVersion let container x | html5 , epubVersion == Just EPUB3 - = H5.section ! A.class_ "footnotes" + = H5.section ! A.class_ className ! customAttribute "epub:type" "footnotes" $ x - | html5 = H5.section ! A.class_ "footnotes" + | html5 = H5.section ! A.class_ className ! customAttribute "role" "doc-endnotes" $ x | slideVariant /= NoSlides = H.div ! A.class_ "footnotes slide" $ x - | otherwise = H.div ! A.class_ "footnotes" $ x + | otherwise = H.div ! A.class_ className $ x return $ if null notes then mempty - else nl opts >> container (nl opts >> hrtag >> nl opts >> - H.ol (mconcat notes >> nl opts) >> nl opts) + else do + nl + container $ do + nl + hrtag + -- Keep the previous output exactly the same if we don't + -- have multiple notes sections + if startCounter == 1 + then H.ol $ mconcat notes >> nl + else H.ol ! A.start (fromString (show startCounter)) $ + mconcat notes >> nl + nl -- | Parse a mailto link; return Just (name, domain) or Nothing. parseMailto :: Text -> Maybe (Text, Text) @@ -618,6 +643,7 @@ toAttrs kvs = do return (keys, attrs) else return (Set.insert k keys, addAttr html5 mbEpubVersion k v attrs) addAttr html5 mbEpubVersion x y + | T.null x = id -- see #7546 | html5 = if x `Set.member` (html5Attributes <> rdfaAttributes) || T.any (== ':') x -- e.g. epub: namespace @@ -689,12 +715,11 @@ figure opts attr@(_, _, attrList) txt (s,tit) = do img <- inlineToHtml opts (Image attr alt (s,tit)) capt <- if null txt then return mempty - else tocapt `fmap` inlineListToHtml opts txt + else (nl <>) . tocapt <$> inlineListToHtml opts txt + let inner = mconcat [nl, img, capt, nl] return $ if html5 - then H5.figure $ mconcat - [nl opts, img, capt, nl opts] - else H.div ! A.class_ "figure" $ mconcat - [nl opts, img, nl opts, capt, nl opts] + then H5.figure inner + else H.div ! A.class_ "figure" $ inner adjustNumbers :: WriterOptions -> [Block] -> [Block] @@ -714,11 +739,10 @@ adjustNumbers opts doc = fixnum x = x showSecNum = T.intercalate "." . map tshow --- | Convert Pandoc block element to HTML. -blockToHtml :: PandocMonad m => WriterOptions -> Block -> StateT WriterState m Html -blockToHtml _ Null = return mempty -blockToHtml opts (Plain lst) = inlineListToHtml opts lst -blockToHtml opts (Para [Image attr@(_,classes,_) txt (src,tit)]) +blockToHtmlInner :: PandocMonad m => WriterOptions -> Block -> StateT WriterState m Html +blockToHtmlInner _ Null = return mempty +blockToHtmlInner opts (Plain lst) = inlineListToHtml opts lst +blockToHtmlInner opts (Para [Image attr@(_,classes,_) txt (src,tit)]) | "stretch" `elem` classes = do slideVariant <- gets stSlideVariant case slideVariant of @@ -728,20 +752,20 @@ blockToHtml opts (Para [Image attr@(_,classes,_) txt (src,tit)]) inlineToHtml opts (Image attr txt (src, tit)) _ -> figure opts attr txt (src, tit) -- title beginning with fig: indicates that the image is a figure -blockToHtml opts (Para [Image attr txt (s,T.stripPrefix "fig:" -> Just tit)]) = - figure opts attr txt (s,tit) -blockToHtml opts (Para lst) = do +blockToHtmlInner opts (SimpleFigure attr caption (src, title)) = + figure opts attr caption (src, title) +blockToHtmlInner opts (Para lst) = do contents <- inlineListToHtml opts lst case contents of Empty _ | not (isEnabled Ext_empty_paragraphs opts) -> return mempty _ -> return $ H.p contents -blockToHtml opts (LineBlock lns) = +blockToHtmlInner opts (LineBlock lns) = if writerWrapText opts == WrapNone then blockToHtml opts $ linesToPara lns else do htmlLines <- inlineListToHtml opts $ intercalate [LineBreak] lns return $ H.div ! A.class_ "line-block" $ htmlLines -blockToHtml opts (Div (ident, "section":dclasses, dkvs) +blockToHtmlInner opts (Div (ident, "section":dclasses, dkvs) (Header level hattr@(hident,hclasses,hkvs) ils : xs)) = do slideVariant <- gets stSlideVariant @@ -796,33 +820,33 @@ blockToHtml opts (Div (ident, "section":dclasses, dkvs) if titleSlide then do t <- addAttrs opts attr $ - secttag $ nl opts <> header' <> nl opts <> titleContents <> nl opts + secttag $ nl <> header' <> nl <> titleContents <> nl -- ensure 2D nesting for revealjs, but only for one level; -- revealjs doesn't like more than one level of nesting return $ if slideVariant == RevealJsSlides && not inSection && not (null innerSecs) - then H5.section (nl opts <> t <> nl opts <> innerContents) - else t <> nl opts <> if null innerSecs + then H5.section (nl <> t <> nl <> innerContents) + else t <> nl <> if null innerSecs then mempty - else innerContents <> nl opts + else innerContents <> nl else if writerSectionDivs opts || slide || (hident /= ident && not (T.null hident || T.null ident)) || (hclasses /= dclasses) || (hkvs /= dkvs) then addAttrs opts attr $ secttag - $ nl opts <> header' <> nl opts <> + $ nl <> header' <> nl <> if null innerSecs then mempty - else innerContents <> nl opts + else innerContents <> nl else do let attr' = (ident, classes' \\ hclasses, dkvs \\ hkvs) t <- addAttrs opts attr' header' return $ t <> if null innerSecs then mempty - else nl opts <> innerContents -blockToHtml opts (Div attr@(ident, classes, kvs') bs) = do + else nl <> innerContents +blockToHtmlInner opts (Div attr@(ident, classes, kvs') bs) = do html5 <- gets stHtml5 slideVariant <- gets stSlideVariant let isCslBibBody = ident == "refs" || "csl-bib-body" `elem` classes @@ -859,7 +883,7 @@ blockToHtml opts (Div attr@(ident, classes, kvs') bs) = do -- off widths! see #4028 mconcat <$> mapM (blockToHtml opts) bs' else blockListToHtml opts' bs' - let contents' = nl opts >> contents >> nl opts + let contents' = nl >> contents >> nl let (divtag, classes'') = if html5 && "section" `elem` classes' then (H5.section, filter (/= "section") classes') else (H.div, classes') @@ -876,7 +900,7 @@ blockToHtml opts (Div attr@(ident, classes, kvs') bs) = do _ -> return mempty else addAttrs opts (ident, classes'', kvs) $ divtag contents' -blockToHtml opts (RawBlock f str) = do +blockToHtmlInner opts (RawBlock f str) = do ishtml <- isRawHtml f if ishtml then return $ preEscapedText str @@ -887,10 +911,10 @@ blockToHtml opts (RawBlock f str) = do else do report $ BlockNotRendered (RawBlock f str) return mempty -blockToHtml _ HorizontalRule = do +blockToHtmlInner _ HorizontalRule = do html5 <- gets stHtml5 return $ if html5 then H5.hr else H.hr -blockToHtml opts (CodeBlock (id',classes,keyvals) rawCode) = do +blockToHtmlInner opts (CodeBlock (id',classes,keyvals) rawCode) = do id'' <- if T.null id' then do modify $ \st -> st{ stCodeBlockNum = stCodeBlockNum st + 1 } @@ -922,7 +946,7 @@ blockToHtml opts (CodeBlock (id',classes,keyvals) rawCode) = do -- we set writerIdentifierPrefix to "" since id'' already -- includes it: addAttrs opts{writerIdentifierPrefix = ""} (id'',[],keyvals) h -blockToHtml opts (BlockQuote blocks) = do +blockToHtmlInner opts (BlockQuote blocks) = do -- in S5, treat list in blockquote specially -- if default is incremental, make it nonincremental; -- otherwise incremental @@ -940,11 +964,11 @@ blockToHtml opts (BlockQuote blocks) = do (DefinitionList lst) _ -> do contents <- blockListToHtml opts blocks return $ H.blockquote - $ nl opts >> contents >> nl opts + $ nl >> contents >> nl else do contents <- blockListToHtml opts blocks - return $ H.blockquote $ nl opts >> contents >> nl opts -blockToHtml opts (Header level (ident,classes,kvs) lst) = do + return $ H.blockquote $ nl >> contents >> nl +blockToHtmlInner opts (Header level (ident,classes,kvs) lst) = do contents <- inlineListToHtml opts lst let secnum = fromMaybe mempty $ lookup "number" kvs let contents' = if writerNumberSections opts && not (T.null secnum) @@ -967,12 +991,12 @@ blockToHtml opts (Header level (ident,classes,kvs) lst) = do 5 -> H.h5 contents' 6 -> H.h6 contents' _ -> H.p ! A.class_ "heading" $ contents' -blockToHtml opts (BulletList lst) = do +blockToHtmlInner opts (BulletList lst) = do contents <- mapM (listItemToHtml opts) lst let isTaskList = not (null lst) && all isTaskListItem lst (if isTaskList then (! A.class_ "task-list") else id) <$> unordList opts contents -blockToHtml opts (OrderedList (startnum, numstyle, _) lst) = do +blockToHtmlInner opts (OrderedList (startnum, numstyle, _) lst) = do contents <- mapM (listItemToHtml opts) lst html5 <- gets stHtml5 let numstyle' = case numstyle of @@ -995,17 +1019,47 @@ blockToHtml opts (OrderedList (startnum, numstyle, _) lst) = do else []) l <- ordList opts contents return $ foldl' (!) l attribs -blockToHtml opts (DefinitionList lst) = do +blockToHtmlInner opts (DefinitionList lst) = do contents <- mapM (\(term, defs) -> do term' <- liftM H.dt $ inlineListToHtml opts term - defs' <- mapM (liftM (\x -> H.dd (x >> nl opts)) . + defs' <- mapM (liftM (\x -> H.dd (nl >> x >> nl)) . blockListToHtml opts) defs - return $ mconcat $ nl opts : term' : nl opts : - intersperse (nl opts) defs') lst + return $ mconcat $ nl : term' : nl : + intersperse (nl) defs') lst defList opts contents -blockToHtml opts (Table attr caption colspecs thead tbody tfoot) = +blockToHtmlInner opts (Table attr caption colspecs thead tbody tfoot) = tableToHtml opts (Ann.toTable attr caption colspecs thead tbody tfoot) +-- | Convert Pandoc block element to HTML. All the legwork is done by +-- 'blockToHtmlInner', this just takes care of emitting the notes after +-- the block if necessary. +blockToHtml :: PandocMonad m => WriterOptions -> Block -> StateT WriterState m Html +blockToHtml opts block = do + -- Ignore inserted section divs -- they are not blocks as they came from + -- the document itself (at least not when coming from markdown) + let isSection = case block of + Div (_, classes, _) _ | "section" `elem` classes -> True + _ -> False + let increaseLevel = not isSection + when increaseLevel $ + modify (\st -> st{ stBlockLevel = stBlockLevel st + 1 }) + doc <- blockToHtmlInner opts block + st <- get + let emitNotes = + (writerReferenceLocation opts == EndOfBlock && stBlockLevel st == 1) || + (writerReferenceLocation opts == EndOfSection && isSection) + res <- if emitNotes + then do + notes <- if null (stNotes st) + then return mempty + else footnoteSection (writerReferenceLocation opts) (stEmittedNotes st + 1) (reverse (stNotes st)) + modify (\st' -> st'{ stNotes = mempty, stEmittedNotes = stEmittedNotes st' + length (stNotes st') }) + return (doc <> notes) + else return doc + when increaseLevel $ + modify (\st' -> st'{ stBlockLevel = stBlockLevel st' - 1 }) + return res + tableToHtml :: PandocMonad m => WriterOptions -> Ann.Table @@ -1017,10 +1071,10 @@ tableToHtml opts (Ann.Table attr caption colspecs thead tbodies tfoot) = do cs <- blockListToHtml opts longCapt return $ do H.caption cs - nl opts - coltags <- colSpecListToHtml opts colspecs + nl + coltags <- colSpecListToHtml colspecs head' <- tableHeadToHtml opts thead - bodies <- intersperse (nl opts) <$> mapM (tableBodyToHtml opts) tbodies + bodies <- intersperse (nl) <$> mapM (tableBodyToHtml opts) tbodies foot' <- tableFootToHtml opts tfoot let (ident,classes,kvs) = attr -- When widths of columns are < 100%, we need to set width for the whole @@ -1037,13 +1091,13 @@ tableToHtml opts (Ann.Table attr caption colspecs thead tbodies tfoot) = do <> "%;"):kvs) _ -> attr addAttrs opts attr' $ H.table $ do - nl opts + nl captionDoc coltags head' mconcat bodies foot' - nl opts + nl tableBodyToHtml :: PandocMonad m => WriterOptions @@ -1090,7 +1144,7 @@ tablePartToHtml opts tblpart attr rows = tablePartElement <- addAttrs opts attr $ tag' contents return $ do tablePartElement - nl opts + nl where isEmptyRow (Ann.HeaderRow _attr _rownum cells) = all isEmptyCell cells isEmptyCell (Ann.Cell _colspecs _colnum cell) = @@ -1131,14 +1185,13 @@ rowListToHtml :: PandocMonad m -> [TableRow] -> StateT WriterState m Html rowListToHtml opts rows = - (\x -> nl opts *> mconcat x) <$> + (\x -> nl *> mconcat x) <$> mapM (tableRowToHtml opts) rows colSpecListToHtml :: PandocMonad m - => WriterOptions - -> [ColSpec] + => [ColSpec] -> StateT WriterState m Html -colSpecListToHtml opts colspecs = do +colSpecListToHtml colspecs = do html5 <- gets stHtml5 let hasDefaultWidth (_, ColWidthDefault) = True hasDefaultWidth _ = False @@ -1152,16 +1205,16 @@ colSpecListToHtml opts colspecs = do ColWidth w -> if html5 then A.style (toValue $ "width: " <> percent w) else A.width (toValue $ percent w) - nl opts + nl return $ if all hasDefaultWidth colspecs then mempty else do H.colgroup $ do - nl opts + nl mapM_ (col . snd) colspecs - nl opts + nl tableRowToHtml :: PandocMonad m => WriterOptions @@ -1180,12 +1233,12 @@ tableRowToHtml opts (TableRow tblpart attr rownum rowhead rowbody) = do headcells <- mapM (cellToHtml opts HeaderCell) rowhead bodycells <- mapM (cellToHtml opts celltype) rowbody rowHtml <- addAttrs opts attr' $ H.tr $ do - nl opts + nl mconcat headcells mconcat bodycells return $ do rowHtml - nl opts + nl alignmentToString :: Alignment -> Maybe Text alignmentToString = \case @@ -1243,18 +1296,18 @@ tableCellToHtml opts ctype colAlign (Cell attr align rowspan colspan item) = do : otherAttribs return $ do tag' ! attribs $ contents - nl opts + nl -toListItems :: WriterOptions -> [Html] -> [Html] -toListItems opts items = map (toListItem opts) items ++ [nl opts] +toListItems :: [Html] -> [Html] +toListItems items = map toListItem items ++ [nl] -toListItem :: WriterOptions -> Html -> Html -toListItem opts item = nl opts *> H.li item +toListItem :: Html -> Html +toListItem item = nl *> H.li item blockListToHtml :: PandocMonad m => WriterOptions -> [Block] -> StateT WriterState m Html blockListToHtml opts lst = - mconcat . intersperse (nl opts) . filter nonempty + mconcat . intersperse (nl) . filter nonempty <$> mapM (blockToHtml opts) lst where nonempty (Empty _) = False nonempty _ = True @@ -1286,9 +1339,9 @@ inlineToHtml opts inline = do (Str str) -> return $ strToHtml str Space -> return $ strToHtml " " SoftBreak -> return $ case writerWrapText opts of - WrapNone -> preEscapedText " " - WrapAuto -> preEscapedText " " - WrapPreserve -> preEscapedText "\n" + WrapNone -> " " + WrapAuto -> " " + WrapPreserve -> nl LineBreak -> return $ do if html5 then H5.br else H.br strToHtml "\n" @@ -1389,7 +1442,7 @@ inlineToHtml opts inline = do InlineMath -> "\\textstyle " DisplayMath -> "\\displaystyle " return $ imtag ! A.style "vertical-align:middle" - ! A.src (toValue $ url <> T.pack (urlEncode (T.unpack $ s <> str))) + ! A.src (toValue . (url <>) . urlEncode $ s <> str) ! A.alt (toValue str) ! A.title (toValue str) ! A.class_ mathClass @@ -1424,13 +1477,17 @@ inlineToHtml opts inline = do ishtml <- isRawHtml f if ishtml then return $ preEscapedText str - else if (f == Format "latex" || f == Format "tex") && - allowsMathEnvironments (writerHTMLMathMethod opts) && - isMathEnvironment str - then inlineToHtml opts $ Math DisplayMath str - else do - report $ InlineNotRendered inline - return mempty + else do + let istex = f == Format "latex" || f == Format "tex" + let mm = writerHTMLMathMethod opts + case istex of + True + | allowsMathEnvironments mm && isMathEnvironment str + -> inlineToHtml opts $ Math DisplayMath str + | allowsRef mm && isRef str + -> inlineToHtml opts $ Math InlineMath str + _ -> do report $ InlineNotRendered inline + return mempty (Link attr txt (s,_)) | "mailto:" `T.isPrefixOf` s -> do linkText <- inlineListToHtml opts txt obfuscateLink opts attr linkText s @@ -1480,7 +1537,8 @@ inlineToHtml opts inline = do -- note: null title included, as in Markdown.pl (Note contents) -> do notes <- gets stNotes - let number = length notes + 1 + emittedNotes <- gets stEmittedNotes + let number = emittedNotes + length notes + 1 let ref = tshow number htmlContents <- blockListToNote opts ref contents epubVersion <- gets stEPUBVersion @@ -1548,7 +1606,7 @@ blockListToNote opts ref blocks = do _ | html5 -> noteItem ! customAttribute "role" "doc-endnote" _ -> noteItem - return $ nl opts >> noteItem' + return $ nl >> noteItem' inDiv :: PandocMonad m=> Text -> Html -> StateT WriterState m Html inDiv cls x = do @@ -1557,6 +1615,9 @@ inDiv cls x = do (if html5 then H5.div else H.div) x ! A.class_ (toValue cls) +isRef :: Text -> Bool +isRef t = "\\ref{" `T.isPrefixOf` t || "\\eqref{" `T.isPrefixOf` t + isMathEnvironment :: Text -> Bool isMathEnvironment s = "\\begin{" `T.isPrefixOf` s && envName `elem` mathmlenvs @@ -1591,10 +1652,15 @@ isMathEnvironment s = "\\begin{" `T.isPrefixOf` s && allowsMathEnvironments :: HTMLMathMethod -> Bool allowsMathEnvironments (MathJax _) = True +allowsMathEnvironments (KaTeX _) = True allowsMathEnvironments MathML = True allowsMathEnvironments (WebTeX _) = True allowsMathEnvironments _ = False +allowsRef :: HTMLMathMethod -> Bool +allowsRef (MathJax _) = True +allowsRef _ = False + -- | List of intrinsic event attributes allowed on all elements in HTML4. intrinsicEventsHTML4 :: [Text] intrinsicEventsHTML4 = |