pandoc/src/Text/Pandoc/Readers/Docx.hs
Jesse Rosenthal 91ab2f155f Get rid of unused docx variable.
Since changing the Docx type, this is no longer necessary. Thanks to
Matthew Pickering for picking up on this.
2014-08-06 12:19:24 -04:00

737 lines
26 KiB
Haskell

{-# LANGUAGE PatternGuards #-}
{-
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
Copyright : Copyright (C) 2014 Jesse Rosenthal
License : GNU GPL, version 2 or above
Maintainer : Jesse Rosenthal <jrosenthal@jhu.edu>
Stability : alpha
Portability : portable
Conversion of Docx type (defined in Text.Pandoc.Readers.Docx.Parse)
to 'Pandoc' document. -}
{-
Current state of implementation of Docx entities ([x] means
implemented, [-] means partially implemented):
* Blocks
- [X] Para
- [X] CodeBlock (styled with `SourceCode`)
- [X] BlockQuote (styled with `Quote`, `BlockQuote`, or, optionally,
indented)
- [X] OrderedList
- [X] BulletList
- [X] DefinitionList (styled with adjacent `DefinitionTerm` and `Definition`)
- [X] Header (styled with `Heading#`)
- [ ] HorizontalRule
- [-] Table (column widths and alignments not yet implemented)
* Inlines
- [X] Str
- [X] Emph (From italics. `underline` currently read as span. In
future, it might optionally be emph as well)
- [X] Strong
- [X] Strikeout
- [X] Superscript
- [X] Subscript
- [X] SmallCaps
- [ ] Quoted
- [ ] Cite
- [X] Code (styled with `VerbatimChar`)
- [X] Space
- [X] LineBreak (these are invisible in Word: entered with Shift-Return)
- [ ] Math
- [X] Link (links to an arbitrary bookmark create a span with the target as
id and "anchor" class)
- [-] Image (Links to path in archive. Future option for
data-encoded URI likely.)
- [X] Note (Footnotes and Endnotes are silently combined.)
-}
module Text.Pandoc.Readers.Docx
( readDocx
) where
import Codec.Archive.Zip
import Text.Pandoc.Definition
import Text.Pandoc.Options
import Text.Pandoc.Builder (text, toList)
import Text.Pandoc.Walk
import Text.Pandoc.Readers.Docx.Parse
import Text.Pandoc.Readers.Docx.Lists
import Text.Pandoc.Readers.Docx.Reducible
import Text.Pandoc.Shared
import Text.Pandoc.MediaBag (insertMedia, MediaBag)
import Data.Maybe (mapMaybe, fromMaybe)
import Data.List (delete, stripPrefix, (\\), intersperse, intersect)
import Data.Monoid
import Text.TeXMath (writeTeX)
import qualified Text.TeXMath.Types as TM
import qualified Data.ByteString.Lazy as B
import qualified Data.Map as M
import Control.Monad.Reader
import Control.Monad.State
readDocx :: ReaderOptions
-> B.ByteString
-> (Pandoc, MediaBag)
readDocx opts bytes =
case archiveToDocx (toArchive bytes) of
Right docx -> (Pandoc meta blks, mediaBag) where
(meta, blks, mediaBag) = (docxToOutput opts docx)
Left _ -> error $ "couldn't parse docx file"
data DState = DState { docxAnchorMap :: M.Map String String
, docxMediaBag :: MediaBag
, docxInHeaderBlock :: Bool}
defaultDState :: DState
defaultDState = DState { docxAnchorMap = M.empty
, docxMediaBag = mempty
, docxInHeaderBlock = False}
data DEnv = DEnv { docxOptions :: ReaderOptions}
type DocxContext = ReaderT DEnv (State DState)
withDState :: (DState -> DState) -> DocxContext a -> DocxContext a
withDState f dctx = do
ds <- get
modify f
ctx' <- dctx
put ds
return ctx'
evalDocxContext :: DocxContext a -> DEnv -> DState -> a
evalDocxContext ctx env st = evalState (runReaderT ctx env) st
concatMapM :: (Monad m) => (a -> m [b]) -> [a] -> m [b]
concatMapM f xs = liftM concat (mapM f xs)
-- This is empty, but we put it in for future-proofing.
spansToKeep :: [String]
spansToKeep = []
divsToKeep :: [String]
divsToKeep = ["list-item", "Definition", "DefinitionTerm"]
metaStyles :: M.Map String String
metaStyles = M.fromList [ ("Title", "title")
, ("Subtitle", "subtitle")
, ("Author", "author")
, ("Date", "date")
, ("Abstract", "abstract")]
sepBodyParts :: [BodyPart] -> ([BodyPart], [BodyPart])
sepBodyParts = span (\bp -> (isMetaPar bp || isEmptyPar bp))
isMetaPar :: BodyPart -> Bool
isMetaPar (Paragraph pPr _) =
not $ null $ intersect (pStyle pPr) (M.keys metaStyles)
isMetaPar _ = False
isEmptyPar :: BodyPart -> Bool
isEmptyPar (Paragraph _ parParts) =
all isEmptyParPart parParts
where
isEmptyParPart (PlainRun (Run _ runElems)) = all isEmptyElem runElems
isEmptyParPart _ = False
isEmptyElem (TextRun s) = trim s == ""
isEmptyElem _ = True
isEmptyPar _ = False
bodyPartsToMeta' :: [BodyPart] -> DocxContext (M.Map String MetaValue)
bodyPartsToMeta' [] = return M.empty
bodyPartsToMeta' (bp : bps)
| (Paragraph pPr parParts) <- bp
, (c : _)<- intersect (pStyle pPr) (M.keys metaStyles)
, (Just metaField) <- M.lookup c metaStyles = do
inlines <- parPartsToInlines parParts
remaining <- bodyPartsToMeta' bps
let
f (MetaInlines ils) (MetaInlines ils') = MetaBlocks [Para ils, Para ils']
f (MetaInlines ils) (MetaBlocks blks) = MetaBlocks ((Para ils) : blks)
f m (MetaList mv) = MetaList (m : mv)
f m n = MetaList [m, n]
return $ M.insertWith f metaField (MetaInlines inlines) remaining
bodyPartsToMeta' (_ : bps) = bodyPartsToMeta' bps
bodyPartsToMeta :: [BodyPart] -> DocxContext Meta
bodyPartsToMeta bps = do
mp <- bodyPartsToMeta' bps
let mp' =
case M.lookup "author" mp of
Just mv -> M.insert "author" (fixAuthors mv) mp
Nothing -> mp
return $ Meta mp'
fixAuthors :: MetaValue -> MetaValue
fixAuthors (MetaBlocks blks) =
MetaList $ map g $ filter f blks
where f (Para _) = True
f _ = False
g (Para ils) = MetaInlines ils
g _ = MetaInlines []
fixAuthors mv = mv
runStyleToContainers :: RunStyle -> [Container Inline]
runStyleToContainers rPr =
let spanClassToContainers :: String -> [Container Inline]
spanClassToContainers s | s `elem` codeSpans =
[Container $ (\ils -> Code ("", [], []) (concatMap ilToCode ils))]
spanClassToContainers s | s `elem` spansToKeep =
[Container $ Span ("", [s], [])]
spanClassToContainers _ = []
classContainers = case rStyle rPr of
Nothing -> []
Just s -> spanClassToContainers s
formatters = map Container $ mapMaybe id
[ if isBold rPr then (Just Strong) else Nothing
, if isItalic rPr then (Just Emph) else Nothing
, if isSmallCaps rPr then (Just SmallCaps) else Nothing
, if isStrike rPr then (Just Strikeout) else Nothing
, if isSuperScript rPr then (Just Superscript) else Nothing
, if isSubScript rPr then (Just Subscript) else Nothing
, rUnderline rPr >>=
(\f -> if f == "single" then (Just Emph) else Nothing)
]
in
classContainers ++ formatters
parStyleToContainers :: ParagraphStyle -> [Container Block]
parStyleToContainers pPr | (c:cs) <- pStyle pPr, Just n <- isHeaderClass c =
[Container $ \_ -> Header n ("", delete ("Heading" ++ show n) cs, []) []]
parStyleToContainers pPr | (c:cs) <- pStyle pPr, c `elem` divsToKeep =
let pPr' = pPr { pStyle = cs }
in
(Container $ Div ("", [c], [])) : (parStyleToContainers pPr')
parStyleToContainers pPr | (c:cs) <- pStyle pPr, c `elem` codeDivs =
-- This is a bit of a cludge. We make the codeblock from the raw
-- parparts in bodyPartToBlocks. But we need something to match against.
let pPr' = pPr { pStyle = cs }
in
(Container $ \_ -> CodeBlock ("", [], []) "") : (parStyleToContainers pPr')
parStyleToContainers pPr | (c:cs) <- pStyle pPr, c `elem` listParagraphDivs =
let pPr' = pPr { pStyle = cs, indentation = Nothing}
in
(Container $ Div ("", [c], [])) : (parStyleToContainers pPr')
parStyleToContainers pPr | (c:cs) <- pStyle pPr, c `elem` blockQuoteDivs =
let pPr' = pPr { pStyle = cs \\ blockQuoteDivs }
in
(Container BlockQuote) : (parStyleToContainers pPr')
parStyleToContainers pPr | (_:cs) <- pStyle pPr =
let pPr' = pPr { pStyle = cs}
in
parStyleToContainers pPr'
parStyleToContainers pPr | null (pStyle pPr),
Just left <- indentation pPr >>= leftParIndent,
Just hang <- indentation pPr >>= hangingParIndent =
let pPr' = pPr { indentation = Nothing }
in
case (left - hang) > 0 of
True -> (Container BlockQuote) : (parStyleToContainers pPr')
False -> parStyleToContainers pPr'
parStyleToContainers pPr | null (pStyle pPr),
Just left <- indentation pPr >>= leftParIndent =
let pPr' = pPr { indentation = Nothing }
in
case left > 0 of
True -> (Container BlockQuote) : (parStyleToContainers pPr')
False -> parStyleToContainers pPr'
parStyleToContainers _ = []
strToInlines :: String -> [Inline]
strToInlines = toList . text
codeSpans :: [String]
codeSpans = ["VerbatimChar"]
blockQuoteDivs :: [String]
blockQuoteDivs = ["Quote", "BlockQuote"]
codeDivs :: [String]
codeDivs = ["SourceCode"]
runElemToInlines :: RunElem -> [Inline]
runElemToInlines (TextRun s) = strToInlines s
runElemToInlines (LnBrk) = [LineBreak]
runElemToInlines (Tab) = [Space]
runElemToString :: RunElem -> String
runElemToString (TextRun s) = s
runElemToString (LnBrk) = ['\n']
runElemToString (Tab) = ['\t']
runElemsToString :: [RunElem] -> String
runElemsToString = concatMap runElemToString
runToString :: Run -> String
runToString (Run _ runElems) = runElemsToString runElems
runToString _ = ""
parPartToString :: ParPart -> String
parPartToString (PlainRun run) = runToString run
parPartToString (InternalHyperLink _ runs) = concatMap runToString runs
parPartToString (ExternalHyperLink _ runs) = concatMap runToString runs
parPartToString _ = ""
inlineCodeContainer :: Container Inline -> Bool
inlineCodeContainer (Container f) = case f [] of
Code _ "" -> True
_ -> False
inlineCodeContainer _ = False
runToInlines :: Run -> DocxContext [Inline]
runToInlines (Run rs runElems)
| any inlineCodeContainer (runStyleToContainers rs) =
return $
rebuild (runStyleToContainers rs) $ [Str $ runElemsToString runElems]
| otherwise =
return $
rebuild (runStyleToContainers rs) (concatMap runElemToInlines runElems)
runToInlines (Footnote bps) =
concatMapM bodyPartToBlocks bps >>= (\blks -> return [Note blks])
runToInlines (Endnote bps) =
concatMapM bodyPartToBlocks bps >>= (\blks -> return [Note blks])
parPartToInlines :: ParPart -> DocxContext [Inline]
parPartToInlines (PlainRun r) = runToInlines r
parPartToInlines (Insertion _ author date runs) = do
opts <- asks docxOptions
case readerTrackChanges opts of
AcceptChanges -> concatMapM runToInlines runs >>= return
RejectChanges -> return []
AllChanges -> do
ils <- (concatMapM runToInlines runs)
return [Span
("", ["insertion"], [("author", author), ("date", date)])
ils]
parPartToInlines (Deletion _ author date runs) = do
opts <- asks docxOptions
case readerTrackChanges opts of
AcceptChanges -> return []
RejectChanges -> concatMapM runToInlines runs >>= return
AllChanges -> do
ils <- concatMapM runToInlines runs
return [Span
("", ["deletion"], [("author", author), ("date", date)])
ils]
parPartToInlines (BookMark _ anchor) | anchor `elem` dummyAnchors = return []
parPartToInlines (BookMark _ anchor) =
-- We record these, so we can make sure not to overwrite
-- user-defined anchor links with header auto ids.
do
-- get whether we're in a header.
inHdrBool <- gets docxInHeaderBlock
-- Get the anchor map.
anchorMap <- gets docxAnchorMap
-- We don't want to rewrite if we're in a header, since we'll take
-- care of that later, when we make the header anchor. If the
-- bookmark were already in uniqueIdent form, this would lead to a
-- duplication. Otherwise, we check to see if the id is already in
-- there. Rewrite if necessary. This will have the possible effect
-- of rewriting user-defined anchor links. However, since these
-- are not defined in pandoc, it seems like a necessary evil to
-- avoid an extra pass.
let newAnchor =
if not inHdrBool && anchor `elem` (M.elems anchorMap)
then uniqueIdent [Str anchor] (M.elems anchorMap)
else anchor
modify $ \s -> s { docxAnchorMap = M.insert anchor newAnchor anchorMap}
return [Span (newAnchor, ["anchor"], []) []]
parPartToInlines (Drawing fp bs) = do
mediaBag <- gets docxMediaBag
modify $ \s -> s { docxMediaBag = insertMedia fp Nothing bs mediaBag }
return [Image [] (fp, "")]
parPartToInlines (InternalHyperLink anchor runs) = do
ils <- concatMapM runToInlines runs
return [Link ils ('#' : anchor, "")]
parPartToInlines (ExternalHyperLink target runs) = do
ils <- concatMapM runToInlines runs
return [Link ils (target, "")]
parPartToInlines (PlainOMath omath) = do
e <- oMathToExps omath
return [Math InlineMath (writeTeX e)]
oMathToExps :: OMath -> DocxContext [TM.Exp]
oMathToExps (OMath oMathElems) = concatMapM oMathElemToExps oMathElems
oMathElemToExps :: OMathElem -> DocxContext [TM.Exp]
oMathElemToExps (Accent style base) = do
baseExp <- baseToExp base
let chr = case accentChar style of
Just c -> c
Nothing -> '\180' -- default to acute.
return [TM.EOver False baseExp (TM.ESymbol TM.Accent [chr])]
oMathElemToExps(Bar style base) = do
baseExp <- baseToExp base
return $ case barPos style of
Top -> [TM.EOver False baseExp (TM.ESymbol TM.Accent "\175")]
Bottom -> [TM.EUnder False baseExp (TM.ESymbol TM.Accent "\818")]
oMathElemToExps (Box base) =
(\e -> return [e]) =<< baseToExp base
oMathElemToExps (BorderBox base) =
-- TODO: This should be "\\boxed" somehow
(\e -> return [e]) =<< baseToExp base
oMathElemToExps (Delimiter dPr bases) = do
baseExps <- mapM baseToExp bases
let inDelimExps = map Right baseExps
beg = fromMaybe '(' (delimBegChar dPr)
end = fromMaybe ')' (delimEndChar dPr)
sep = fromMaybe '|' (delimSepChar dPr)
exps = intersperse (Left [sep]) inDelimExps
return [TM.EDelimited [beg] [end] exps]
oMathElemToExps (EquationArray bases) = do
let f b = do bs <- baseToExp' b
return [bs]
baseExps <- mapM f bases
return [TM.EArray [] baseExps]
oMathElemToExps (Fraction num denom) = do
numExp <- concatMapM oMathElemToExps num >>= (return . TM.EGrouped)
denExp <- concatMapM oMathElemToExps denom >>= (return . TM.EGrouped)
return [TM.EFraction TM.NormalFrac numExp denExp]
oMathElemToExps (Function fname base) = do
-- We need a string for the fname, but omml gives it to us as a
-- series of oMath elems. We're going to filter out the oMathRuns,
-- which should work for us most of the time.
let f :: OMathElem -> String
f (OMathRun _ run) = runToString run
f _ = ""
fnameString = concatMap f fname
baseExp <- baseToExp base
return [TM.EMathOperator fnameString, baseExp]
oMathElemToExps (Group style base)
| Just Top <- groupPos style = do
baseExp <- baseToExp base
let chr = case groupChr style of
Just c -> c
Nothing -> '\65079' -- default to overbrace
return [TM.EOver False baseExp (TM.ESymbol TM.Accent [chr])]
| otherwise = do
baseExp <- baseToExp base
let chr = case groupChr style of
Just c -> c
Nothing -> '\65080' -- default to underbrace
return [TM.EUnder False baseExp (TM.ESymbol TM.Accent [chr])]
oMathElemToExps (LowerLimit base limElems) = do
baseExp <- baseToExp base
lim <- concatMapM oMathElemToExps limElems >>= (return . TM.EGrouped)
return [TM.EUnder True lim baseExp]
oMathElemToExps (UpperLimit base limElems) = do
baseExp <- baseToExp base
lim <- concatMapM oMathElemToExps limElems >>= (return . TM.EGrouped)
return [TM.EOver True lim baseExp]
oMathElemToExps (Matrix bases) = do
rows <- mapM (mapM (\b -> baseToExp' b)) bases
return [TM.EArray [TM.AlignCenter] rows]
oMathElemToExps (NAry style sub sup base) = do
subExps <- concatMapM oMathElemToExps sub
supExps <- concatMapM oMathElemToExps sup
baseExp <- baseToExp base
let opChar = case nAryChar style of
Just c -> c
-- default to integral
Nothing -> '\8747'
return [ TM.ESubsup
(TM.ESymbol TM.Op [opChar])
(TM.EGrouped subExps)
(TM.EGrouped supExps)
, baseExp]
oMathElemToExps (Phantom base) =
(\e -> return [TM.EPhantom e]) =<< baseToExp base
oMathElemToExps (Radical degree base) = do
degExps <- concatMapM oMathElemToExps degree
baseExp <- baseToExp base
return $ case degExps of
[] -> [TM.ESqrt baseExp]
ds -> [TM.ERoot (TM.EGrouped ds) baseExp]
oMathElemToExps (PreSubSuper sub sup base) = do
subExps <- concatMapM oMathElemToExps sub
supExps <- concatMapM oMathElemToExps sup
baseExp <- baseToExp base
return [ TM.ESubsup
(TM.EIdentifier "") (TM.EGrouped subExps) (TM.EGrouped supExps)
, baseExp]
oMathElemToExps (Sub base sub) = do
baseExp <- baseToExp base
subExps <- concatMapM oMathElemToExps sub
return [TM.ESub baseExp (TM.EGrouped subExps)]
oMathElemToExps (SubSuper base sub sup) = do
baseExp <- baseToExp base
subExps <- concatMapM oMathElemToExps sub
supExps <- concatMapM oMathElemToExps sup
return [TM.ESubsup baseExp (TM.EGrouped subExps) (TM.EGrouped supExps)]
oMathElemToExps (Super base sup) = do
baseExp <- baseToExp base
supExps <- concatMapM oMathElemToExps sup
return [TM.ESuper baseExp (TM.EGrouped supExps)]
oMathElemToExps (OMathRun sty run@(Run _ _))
| NoStyle <- oMathRunTextStyle sty =
return $ [TM.EIdentifier $ runToString run]
| Nothing <- oMathRunStyleToTextType sty =
return $ [TM.EIdentifier $ runToString run]
| Just textType <- oMathRunStyleToTextType sty =
return $ if oMathLit sty
then [TM.EText textType (runToString run)]
else [TM.EStyled textType [TM.EIdentifier $ runToString run]]
oMathElemToExps (OMathRun _ _) = return []
oMathRunStyleToTextType :: OMathRunStyle -> Maybe TM.TextType
oMathRunStyleToTextType mrPr
| Normal <- oMathRunTextStyle mrPr =
Just $ TM.TextNormal
| Styled scr sty <- oMathRunTextStyle mrPr
,Just OBold <- sty
, Just OSansSerif <- scr =
Just $ TM.TextSansSerifBold
| Styled scr sty <- oMathRunTextStyle mrPr
, Just OBoldItalic <- sty
, Just OSansSerif <- scr =
Just $ TM.TextSansSerifBoldItalic
| Styled scr sty <- oMathRunTextStyle mrPr
, Just OBold <- sty
, Just OScript <- scr =
Just $ TM.TextBoldScript
| Styled scr sty <- oMathRunTextStyle mrPr
, Just OBold <- sty
, Just OFraktur <- scr =
Just $ TM.TextBoldFraktur
| Styled scr sty <- oMathRunTextStyle mrPr
, Just OItalic <- sty
, Just OSansSerif <- scr =
Just $ TM.TextSansSerifItalic
| Styled _ sty <- oMathRunTextStyle mrPr
, Just OBold <- sty =
Just $ TM.TextBold
| Styled _ sty <- oMathRunTextStyle mrPr
, Just OItalic <- sty =
Just $ TM.TextItalic
| Styled scr _ <- oMathRunTextStyle mrPr
, Just OMonospace <- scr =
Just $ TM.TextMonospace
| Styled scr _ <- oMathRunTextStyle mrPr
, Just OSansSerif <- scr =
Just $ TM.TextSansSerif
| Styled scr _ <- oMathRunTextStyle mrPr
, Just ODoubleStruck <- scr =
Just $ TM.TextDoubleStruck
| Styled scr _ <- oMathRunTextStyle mrPr
, Just OScript <- scr =
Just $ TM.TextDoubleStruck
| Styled scr _ <- oMathRunTextStyle mrPr
, Just OFraktur <- scr =
Just $ TM.TextFraktur
| Styled _ sty <- oMathRunTextStyle mrPr
, Just OBoldItalic <- sty =
Just $ TM.TextBoldItalic
| otherwise = Nothing
baseToExp :: Base -> DocxContext TM.Exp
baseToExp (Base mathElems) =
concatMapM oMathElemToExps mathElems >>= (return . TM.EGrouped)
-- an ungrouped version of baseToExp
baseToExp' :: Base -> DocxContext [TM.Exp]
baseToExp' (Base mathElems) =
concatMapM oMathElemToExps mathElems
isAnchorSpan :: Inline -> Bool
isAnchorSpan (Span (ident, classes, kvs) ils) =
(not . null) ident &&
classes == ["anchor"] &&
null kvs &&
null ils
isAnchorSpan _ = False
dummyAnchors :: [String]
dummyAnchors = ["_GoBack"]
makeHeaderAnchor :: Block -> DocxContext Block
-- If there is an anchor already there (an anchor span in the header,
-- to be exact), we rename and associate the new id with the old one.
makeHeaderAnchor (Header n (_, classes, kvs) ils)
| (x : xs) <- filter isAnchorSpan ils
, (Span (ident, _, _) _) <- x
, notElem ident dummyAnchors =
do
hdrIDMap <- gets docxAnchorMap
let newIdent = uniqueIdent ils (M.elems hdrIDMap)
modify $ \s -> s {docxAnchorMap = M.insert ident newIdent hdrIDMap}
return $ Header n (newIdent, classes, kvs) (ils \\ (x:xs))
-- Otherwise we just give it a name, and register that name (associate
-- it with itself.)
makeHeaderAnchor (Header n (_, classes, kvs) ils) =
do
hdrIDMap <- gets docxAnchorMap
let newIdent = uniqueIdent ils (M.elems hdrIDMap)
modify $ \s -> s {docxAnchorMap = M.insert newIdent newIdent hdrIDMap}
return $ Header n (newIdent, classes, kvs) ils
makeHeaderAnchor blk = return blk
parPartsToInlines :: [ParPart] -> DocxContext [Inline]
parPartsToInlines parparts = do
ils <- concatMapM parPartToInlines parparts
return $ reduceList $ ils
cellToBlocks :: Cell -> DocxContext [Block]
cellToBlocks (Cell bps) = concatMapM bodyPartToBlocks bps
rowToBlocksList :: Row -> DocxContext [[Block]]
rowToBlocksList (Row cells) = mapM cellToBlocks cells
isBlockCodeContainer :: Container Block -> Bool
isBlockCodeContainer (Container f) | CodeBlock _ _ <- f [] = True
isBlockCodeContainer _ = False
isHeaderContainer :: Container Block -> Bool
isHeaderContainer (Container f) | Header _ _ _ <- f [] = True
isHeaderContainer _ = False
bodyPartToBlocks :: BodyPart -> DocxContext [Block]
bodyPartToBlocks (Paragraph pPr parparts)
| any isBlockCodeContainer (parStyleToContainers pPr) =
let
otherConts = filter (not . isBlockCodeContainer) (parStyleToContainers pPr)
in
return $
rebuild
otherConts
[CodeBlock ("", [], []) (concatMap parPartToString parparts)]
bodyPartToBlocks (Paragraph pPr parparts)
| any isHeaderContainer (parStyleToContainers pPr) = do
ils <-withDState (\s -> s{docxInHeaderBlock = True}) $
parPartsToInlines parparts >>= (return . normalizeSpaces)
let (Container hdrFun) = head $ filter isHeaderContainer (parStyleToContainers pPr)
Header n attr _ = hdrFun []
hdr <- makeHeaderAnchor $ Header n attr ils
return [hdr]
bodyPartToBlocks (Paragraph pPr parparts) = do
ils <- parPartsToInlines parparts >>= (return . normalizeSpaces)
case ils of
[] -> return []
_ -> do
return $
rebuild
(parStyleToContainers pPr)
[Para ils]
bodyPartToBlocks (ListItem pPr numId lvl levelInfo parparts) = do
let
kvs = case levelInfo of
(_, fmt, txt, Just start) -> [ ("level", lvl)
, ("num-id", numId)
, ("format", fmt)
, ("text", txt)
, ("start", (show start))
]
(_, fmt, txt, Nothing) -> [ ("level", lvl)
, ("num-id", numId)
, ("format", fmt)
, ("text", txt)
]
blks <- bodyPartToBlocks (Paragraph pPr parparts)
return $ [Div ("", ["list-item"], kvs) blks]
bodyPartToBlocks (Tbl _ _ _ []) =
return [Para []]
bodyPartToBlocks (Tbl cap _ look (r:rs)) = do
let caption = strToInlines cap
(hdr, rows) = case firstRowFormatting look of
True -> (Just r, rs)
False -> (Nothing, r:rs)
hdrCells <- case hdr of
Just r' -> rowToBlocksList r'
Nothing -> return []
cells <- mapM rowToBlocksList rows
let size = case null hdrCells of
True -> length $ head cells
False -> length $ hdrCells
--
-- The two following variables (horizontal column alignment and
-- relative column widths) go to the default at the
-- moment. Width information is in the TblGrid field of the Tbl,
-- so should be possible. Alignment might be more difficult,
-- since there doesn't seem to be a column entity in docx.
alignments = replicate size AlignDefault
widths = replicate size 0 :: [Double]
return [Table caption alignments widths hdrCells cells]
bodyPartToBlocks (OMathPara _ maths) = do
omaths <- mapM oMathToExps maths
return [Para $
map (\m -> Math DisplayMath (writeTeX m))
omaths]
-- replace targets with generated anchors.
rewriteLink :: Inline -> DocxContext Inline
rewriteLink l@(Link ils ('#':target, title)) = do
anchorMap <- gets docxAnchorMap
return $ case M.lookup target anchorMap of
Just newTarget -> (Link ils ('#':newTarget, title))
Nothing -> l
rewriteLink il = return il
bodyToOutput :: Body -> DocxContext (Meta, [Block], MediaBag)
bodyToOutput (Body bps) = do
let (metabps, blkbps) = sepBodyParts bps
meta <- bodyPartsToMeta metabps
blks <- concatMapM bodyPartToBlocks blkbps >>=
walkM rewriteLink
mediaBag <- gets docxMediaBag
return $ (meta,
blocksToDefinitions $ blocksToBullets $ blks,
mediaBag)
docxToOutput :: ReaderOptions -> Docx -> (Meta, [Block], MediaBag)
docxToOutput opts (Docx (Document _ body)) =
let dState = defaultDState
dEnv = DEnv { docxOptions = opts }
in
evalDocxContext (bodyToOutput body) dEnv dState
ilToCode :: Inline -> String
ilToCode (Str s) = s
ilToCode Space = " "
ilToCode _ = ""
isHeaderClass :: String -> Maybe Int
isHeaderClass s | Just s' <- stripPrefix "Heading" s =
case reads s' :: [(Int, String)] of
[] -> Nothing
((n, "") : []) -> Just n
_ -> Nothing
isHeaderClass _ = Nothing