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Docx Reader: Change state handling.

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We don't need `updateDState` -- the built-in `modify` works just
fine. And we redefine `withDState` to use modify.
This commit is contained in:
Jesse Rosenthal 2014-07-16 03:43:14 +01:00
parent 643435f1de
commit a4671afd64
1 changed files with 12 additions and 16 deletions
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28
src/Text/Pandoc/Readers/Docx.hs
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@ -112,18 +112,13 @@ data DEnv = DEnv { docxOptions :: ReaderOptions
type DocxContext = ReaderT DEnv (State DState)
updateDState :: (DState -> DState) -> DocxContext ()
updateDState f = do
st <- get
put $ f st
withDState :: DState -> DocxContext a -> DocxContext a
withDState ds dctx = do
ds' <- get
updateDState (\_ -> ds)
dctx' <- dctx
put ds'
return dctx'
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
@ -307,8 +302,9 @@ parPartToInlines (BookMark _ anchor) =
let newAnchor = case anchor `elem` (M.elems anchorMap) of
True -> uniqueIdent [Str anchor] (M.elems anchorMap)
False -> anchor
updateDState $ \s -> s { docxAnchorMap = M.insert anchor newAnchor anchorMap}
return [Span (anchor, ["anchor"], []) []]
modify $ \s -> s { docxAnchorMap = M.insert anchor newAnchor anchorMap}
return [Span (newAnchor, ["anchor"], []) []]
parPartToInlines (Drawing fp bs) = do
return $ case True of -- TODO: add self-contained images
True -> [Image [] (fp, "")]
@ -427,8 +423,8 @@ oMathElemToTexString (Matrix bases) = do
s <- liftM (intercalate " \\\\\n")(mapM rowString bases)
return $ printf "\\begin{matrix}\n%s\n\\end{matrix}" s
oMathElemToTexString (NAry style sub sup base) | Just c <- nAryChar style = do
ds <- gets (\s -> s{docxInTexSubscript = True})
subString <- withDState ds $ concatMapM oMathElemToTexString sub
subString <- withDState (\s -> s{docxInTexSubscript = True}) $
concatMapM oMathElemToTexString sub
supString <- concatMapM oMathElemToTexString sup
baseString <- baseToTexString base
return $ case M.lookup c uniconvMap of
@ -505,7 +501,7 @@ makeHeaderAnchor (Header n (_, classes, kvs) ils) =
do
hdrIDMap <- gets docxAnchorMap
let newIdent = uniqueIdent ils (M.elems hdrIDMap)
updateDState $ \s -> s {docxAnchorMap = M.insert newIdent newIdent hdrIDMap}
modify $ \s -> s {docxAnchorMap = M.insert newIdent newIdent hdrIDMap}
return $ Header n (newIdent, classes, kvs) ils
makeHeaderAnchor blk = return blk