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authorIgor Pashev <pashev.igor@gmail.com>2021-12-29 15:46:11 +0200
committerIgor Pashev <pashev.igor@gmail.com>2021-12-29 15:46:11 +0200
commit004d06cfdca6b15364f39d632daf87675ce18b8d (patch)
tree3eb6c19418d10da347761a26d444657a3fee059e /src/Text/Pandoc
parentb4361712899fd0183fea5513180cb383979616de (diff)
downloadpandoc-004d06cfdca6b15364f39d632daf87675ce18b8d.tar.gz
LaTeX->HTML: Automatically generate the TOC
Diffstat (limited to 'src/Text/Pandoc')
-rw-r--r--src/Text/Pandoc/Writers/HTML.hs17
1 files changed, 14 insertions, 3 deletions
diff --git a/src/Text/Pandoc/Writers/HTML.hs b/src/Text/Pandoc/Writers/HTML.hs
index 8c5548196..7cc6fef49 100644
--- a/src/Text/Pandoc/Writers/HTML.hs
+++ b/src/Text/Pandoc/Writers/HTML.hs
@@ -28,6 +28,7 @@ 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')
@@ -50,7 +51,7 @@ import Text.Pandoc.ImageSize
import Text.Pandoc.Options
import Text.Pandoc.Shared
import Text.Pandoc.Slides
-import Text.Pandoc.Templates (renderTemplate)
+import Text.Pandoc.Templates (Template, compileTemplate, renderTemplate)
import Text.Pandoc.Walk
import Text.Pandoc.Writers.Math
import Text.Pandoc.Writers.Shared
@@ -207,13 +208,15 @@ 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 writerTemplate opts of
+ case template of
Nothing -> return $
case colwidth of
Nothing -> renderHtml' body -- optimization, skip layout
@@ -249,6 +252,13 @@ 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
@@ -272,7 +282,8 @@ pandocToHtml opts (Pandoc meta blocks) = do
if slideVariant == NoSlides
then blocks
else prepSlides slideLevel blocks
- toc <- if writerTableOfContents opts && slideVariant /= S5Slides
+ let withTOC = fromMaybe (writerTableOfContents opts) (wantTOC meta)
+ toc <- if withTOC && slideVariant /= S5Slides
then fmap layoutMarkup <$> tableOfContents opts sects
else return Nothing
blocks' <- blockListToHtml opts sects