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| author | Albert Krewinkel <albert@zeitkraut.de> | 2021-02-13 09:37:43 +0100 |
|---|---|---|
| committer | John MacFarlane <jgm@berkeley.edu> | 2021-02-13 13:00:37 -0800 |
| commit | a3beed9db874517fa57b55380658f4e019e809b2 (patch) | |
| tree | 7575848ae45ecb795a4a8fc2187a9a4db959d8b7 /src/Text/Pandoc/Readers/Org | |
| parent | 2d60a5127cc28bb6b55c19309d6e8fb6e81fbe66 (diff) | |
| download | pandoc-a3beed9db874517fa57b55380658f4e019e809b2.tar.gz | |
Org: support task_lists extension
The tasks lists extension is now supported by the org reader and writer;
the extension is turned on by default.
Closes: #6336
Diffstat (limited to 'src/Text/Pandoc/Readers/Org')
| -rw-r--r-- | src/Text/Pandoc/Readers/Org/Blocks.hs | 41 |
1 files changed, 39 insertions, 2 deletions
diff --git a/src/Text/Pandoc/Readers/Org/Blocks.hs b/src/Text/Pandoc/Readers/Org/Blocks.hs index 6bd046e04..d1aff701e 100644 --- a/src/Text/Pandoc/Readers/Org/Blocks.hs +++ b/src/Text/Pandoc/Readers/Org/Blocks.hs @@ -1,6 +1,7 @@ {-# LANGUAGE FlexibleContexts #-} -{-# LANGUAGE RecordWildCards #-} +{-# LANGUAGE LambdaCase #-} {-# LANGUAGE OverloadedStrings #-} +{-# LANGUAGE RecordWildCards #-} {- | Module : Text.Pandoc.Readers.Org.Blocks Copyright : Copyright (C) 2014-2021 Albert Krewinkel @@ -850,16 +851,52 @@ definitionListItem parseIndentedMarker = try $ do definitionMarker = spaceChar *> string "::" <* (spaceChar <|> lookAhead newline) +-- | Checkbox for tasks. +data Checkbox + = UncheckedBox + | CheckedBox + | SemicheckedBox + +-- | Parses a checkbox in a plain list. +checkbox :: PandocMonad m + => OrgParser m Checkbox +checkbox = do + guardEnabled Ext_task_lists + try (char '[' *> status <* char ']') <?> "checkbox" + where + status = choice + [ UncheckedBox <$ char ' ' + , CheckedBox <$ char 'X' + , SemicheckedBox <$ char '-' + ] + +checkboxToInlines :: Checkbox -> Inline +checkboxToInlines = B.Str . \case + UncheckedBox -> "☐" + SemicheckedBox -> "☐" + CheckedBox -> "☒" + -- | parse raw text for one list item listItem :: PandocMonad m => OrgParser m Int -> OrgParser m (F Blocks) listItem parseIndentedMarker = try . withContext ListItemState $ do markerLength <- try parseIndentedMarker + box <- optionMaybe checkbox firstLine <- anyLineNewline blank <- option "" ("\n" <$ blankline) rest <- T.concat <$> many (listContinuation markerLength) - parseFromString blocks $ firstLine <> blank <> rest + contents <- parseFromString blocks $ firstLine <> blank <> rest + return (maybe id (prependInlines . checkboxToInlines) box <$> contents) + +-- | Prepend inlines to blocks, adding them to the first paragraph or +-- creating a new Plain element if necessary. +prependInlines :: Inline -> Blocks -> Blocks +prependInlines inlns = B.fromList . prepend . B.toList + where + prepend (Plain is : bs) = Plain (inlns : Space : is) : bs + prepend (Para is : bs) = Para (inlns : Space : is) : bs + prepend bs = Plain [inlns, Space] : bs -- continuation of a list item - indented and separated by blankline or endline. -- Note: nested lists are parsed as continuations. |