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Docx: handle level overrides.

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There can be overrides for the definitions of certain levels in
numbering definitions. This implements that behavior.

Closes: #5134
This commit is contained in:
Jesse Rosenthal 2018-12-10 17:25:25 -05:00
parent 2cb9a787ae
commit 448fb359e3
1 changed files with 17 additions and 6 deletions
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21
src/Text/Pandoc/Readers/Docx/Parse.hs
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@ -192,14 +192,14 @@ data Numbering = Numbering NameSpaces [Numb] [AbstractNumb]
data Numb = Numb String String [LevelOverride]
deriving Show
-- ilvl, startOverride, lvl
data LevelOverride = LevelOverride String (Maybe String) (Maybe Level)
-- ilvl startOverride lvl
data LevelOverride = LevelOverride String (Maybe Integer) (Maybe Level)
deriving Show
data AbstractNumb = AbstractNumb String [Level]
deriving Show
-- (ilvl, format, string, start)
-- ilvl format string start
data Level = Level String String String (Maybe Integer)
deriving Show
@ -509,8 +509,18 @@ filePathIsMedia fp =
lookupLevel :: String -> String -> Numbering -> Maybe Level
lookupLevel numId ilvl (Numbering _ numbs absNumbs) = do
absNumId <- lookup numId $ map (\(Numb nid absnumid _) -> (nid, absnumid)) numbs
lvls <- lookup absNumId $ map (\(AbstractNumb aid ls) -> (aid, ls)) absNumbs
(absNumId, ovrrides) <- lookup numId $
map (\(Numb nid absnumid ovrRides) -> (nid, (absnumid, ovrRides))) numbs
lvls <- lookup absNumId $
map (\(AbstractNumb aid ls) -> (aid, ls)) absNumbs
-- this can be a maybe, so we do a let
let lvlOverride = lookup ilvl $
map (\lo@(LevelOverride ilvl' _ _) -> (ilvl', lo)) ovrrides
case lvlOverride of
Just (LevelOverride _ _ (Just lvl')) -> Just lvl'
Just (LevelOverride _ (Just strt) _) ->
lookup ilvl $ map (\(Level i fmt s _) -> (i, (Level i fmt s (Just strt)))) lvls
_ ->
lookup ilvl $ map (\l@(Level i _ _ _) -> (i, l)) lvls
loElemToLevelOverride :: NameSpaces -> Element -> Maybe LevelOverride
@ -519,6 +529,7 @@ loElemToLevelOverride ns element
ilvl <- findAttrByName ns "w" "ilvl" element
let startOverride = findChildByName ns "w" "startOverride" element
>>= findAttrByName ns "w" "val"
>>= (\s -> listToMaybe (map fst (reads s :: [(Integer, String)])))
lvl = findChildByName ns "w" "lvl" element
>>= levelElemToLevel ns
return $ LevelOverride ilvl startOverride lvl