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+{-
+Copyright (C) 2014 Jesse Rosenthal <jrosenthal@jhu.edu>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+-}
+
+{- |
+ Module : Text.Pandoc.Readers.DocX.Lists
+ Copyright : Copyright (C) 2014 Jesse Rosenthal
+ License : GNU GPL, version 2 or above
+
+ Maintainer : Jesse Rosenthal <jrosenthal@jhu.edu>
+ Stability : alpha
+ Portability : portable
+
+Functions for converting flat DocX paragraphs into nested lists.
+-}
+
+module Text.Pandoc.Readers.DocX.Lists ( blocksToBullets
+ , blocksToDefinitions) where
+
+import Text.Pandoc.JSON
+import Text.Pandoc.Shared (trim)
+import Control.Monad
+import Data.List
+import Data.Maybe
+
+isListItem :: Block -> Bool
+isListItem (Div (_, classes, _) _) | "list-item" `elem` classes = True
+isListItem _ = False
+
+getLevel :: Block -> Maybe Integer
+getLevel (Div (_, _, kvs) _) = liftM read $ lookup "level" kvs
+getLevel _ = Nothing
+
+getLevelN :: Block -> Integer
+getLevelN b = case getLevel b of
+ Just n -> n
+ Nothing -> -1
+
+getNumId :: Block -> Maybe Integer
+getNumId (Div (_, _, kvs) _) = liftM read $ lookup "num-id" kvs
+getNumId _ = Nothing
+
+getNumIdN :: Block -> Integer
+getNumIdN b = case getNumId b of
+ Just n -> n
+ Nothing -> -1
+
+getText :: Block -> Maybe String
+getText (Div (_, _, kvs) _) = lookup "text" kvs
+getText _ = Nothing
+
+data ListType = Itemized | Enumerated ListAttributes
+
+listStyleMap :: [(String, ListNumberStyle)]
+listStyleMap = [("upperLetter", UpperAlpha),
+ ("lowerLetter", LowerAlpha),
+ ("upperRoman", UpperRoman),
+ ("lowerRoman", LowerRoman),
+ ("decimal", Decimal)]
+
+listDelimMap :: [(String, ListNumberDelim)]
+listDelimMap = [("%1)", OneParen),
+ ("(%1)", TwoParens),
+ ("%1.", Period)]
+
+getListType :: Block -> Maybe ListType
+getListType b@(Div (_, _, kvs) _) | isListItem b =
+ let
+ start = lookup "start" kvs
+ frmt = lookup "format" kvs
+ txt = lookup "text" kvs
+ in
+ case frmt of
+ Just "bullet" -> Just Itemized
+ Just f ->
+ case txt of
+ Just t -> Just $ Enumerated (
+ read (fromMaybe "1" start) :: Int,
+ fromMaybe DefaultStyle (lookup f listStyleMap),
+ fromMaybe DefaultDelim (lookup t listDelimMap))
+ Nothing -> Nothing
+ _ -> Nothing
+getListType _ = Nothing
+
+listParagraphDivs :: [String]
+listParagraphDivs = ["ListParagraph"]
+
+-- This is a first stab at going through and attaching meaning to list
+-- paragraphs, without an item marker, following a list item. We
+-- assume that these are paragraphs in the same item.
+
+handleListParagraphs :: [Block] -> [Block]
+handleListParagraphs [] = []
+handleListParagraphs (
+ (Div attr1@(_, classes1, _) blks1) :
+ (Div (ident2, classes2, kvs2) blks2) :
+ blks
+ ) | "list-item" `elem` classes1 &&
+ not ("list-item" `elem` classes2) &&
+ (not . null) (listParagraphDivs `intersect` classes2) =
+ -- We don't want to keep this indent.
+ let newDiv2 =
+ (Div (ident2, classes2, filter (\kv -> fst kv /= "indent") kvs2) blks2)
+ in
+ handleListParagraphs ((Div attr1 (blks1 ++ [newDiv2])) : blks)
+handleListParagraphs (blk:blks) = blk : (handleListParagraphs blks)
+
+separateBlocks' :: Block -> [[Block]] -> [[Block]]
+separateBlocks' blk ([] : []) = [[blk]]
+separateBlocks' b@(BulletList _) acc = (init acc) ++ [(last acc) ++ [b]]
+separateBlocks' b@(OrderedList _ _) acc = (init acc) ++ [(last acc) ++ [b]]
+-- The following is for the invisible bullet lists. This is how
+-- pandoc-generated ooxml does multiparagraph item lists.
+separateBlocks' b acc | liftM trim (getText b) == Just "" =
+ (init acc) ++ [(last acc) ++ [b]]
+separateBlocks' b acc = acc ++ [[b]]
+
+separateBlocks :: [Block] -> [[Block]]
+separateBlocks blks = foldr separateBlocks' [[]] (reverse blks)
+
+flatToBullets' :: Integer -> [Block] -> [Block]
+flatToBullets' _ [] = []
+flatToBullets' num xs@(b : elems)
+ | getLevelN b == num = b : (flatToBullets' num elems)
+ | otherwise =
+ let bNumId = getNumIdN b
+ bLevel = getLevelN b
+ (children, remaining) =
+ span
+ (\b' ->
+ ((getLevelN b') > bLevel ||
+ ((getLevelN b') == bLevel && (getNumIdN b') == bNumId)))
+ xs
+ in
+ case getListType b of
+ Just (Enumerated attr) ->
+ (OrderedList attr (separateBlocks $ flatToBullets' bLevel children)) :
+ (flatToBullets' num remaining)
+ _ ->
+ (BulletList (separateBlocks $ flatToBullets' bLevel children)) :
+ (flatToBullets' num remaining)
+
+flatToBullets :: [Block] -> [Block]
+flatToBullets elems = flatToBullets' (-1) elems
+
+blocksToBullets :: [Block] -> [Block]
+blocksToBullets blks =
+ -- bottomUp removeListItemDivs $
+ flatToBullets $ (handleListParagraphs blks)
+
+
+plainParaInlines :: Block -> [Inline]
+plainParaInlines (Plain ils) = ils
+plainParaInlines (Para ils) = ils
+plainParaInlines _ = []
+
+blocksToDefinitions' :: [([Inline], [[Block]])] -> [Block] -> [Block] -> [Block]
+blocksToDefinitions' [] acc [] = reverse acc
+blocksToDefinitions' defAcc acc [] =
+ reverse $ (DefinitionList (reverse defAcc)) : acc
+blocksToDefinitions' defAcc acc
+ ((Div (_, classes1, _) blks1) : (Div (ident2, classes2, kvs2) blks2) : blks)
+ | "DefinitionTerm" `elem` classes1 && "Definition" `elem` classes2 =
+ let remainingAttr2 = (ident2, delete "Definition" classes2, kvs2)
+ pair = case remainingAttr2 == ("", [], []) of
+ True -> (concatMap plainParaInlines blks1, [blks2])
+ False -> (concatMap plainParaInlines blks1, [[Div remainingAttr2 blks2]])
+ in
+ blocksToDefinitions' (pair : defAcc) acc blks
+blocksToDefinitions' defAcc acc
+ ((Div (ident2, classes2, kvs2) blks2) : blks)
+ | (not . null) defAcc && "Definition" `elem` classes2 =
+ let remainingAttr2 = (ident2, delete "Definition" classes2, kvs2)
+ defItems2 = case remainingAttr2 == ("", [], []) of
+ True -> blks2
+ False -> [Div remainingAttr2 blks2]
+ ((defTerm, defItems):defs) = defAcc
+ defAcc' = case null defItems of
+ True -> (defTerm, [defItems2]) : defs
+ False -> (defTerm, init defItems ++ [last defItems ++ defItems2]) : defs
+ in
+ blocksToDefinitions' defAcc' acc blks
+blocksToDefinitions' [] acc (b:blks) =
+ blocksToDefinitions' [] (b:acc) blks
+blocksToDefinitions' defAcc acc (b:blks) =
+ blocksToDefinitions' [] (b : (DefinitionList (reverse defAcc)) : acc) blks
+
+
+blocksToDefinitions :: [Block] -> [Block]
+blocksToDefinitions = blocksToDefinitions' [] []
+
+
+
+
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