diff options
Diffstat (limited to 'src/Text/Pandoc/Writers/Texinfo.hs')
| -rw-r--r-- | src/Text/Pandoc/Writers/Texinfo.hs | 89 |
1 files changed, 53 insertions, 36 deletions
diff --git a/src/Text/Pandoc/Writers/Texinfo.hs b/src/Text/Pandoc/Writers/Texinfo.hs index fac7f02ab..dd5d5ee5d 100644 --- a/src/Text/Pandoc/Writers/Texinfo.hs +++ b/src/Text/Pandoc/Writers/Texinfo.hs @@ -44,7 +44,8 @@ import Text.Pandoc.ImageSize import Network.URI ( isURI, unEscapeString ) import System.FilePath import qualified Data.Set as Set -import Text.Pandoc.Class ( PandocMonad ) +import Control.Monad.Except (throwError) +import Text.Pandoc.Class ( PandocMonad, PandocExecutionError(..) ) data WriterState = WriterState { stStrikeout :: Bool -- document contains strikeout @@ -60,10 +61,12 @@ data WriterState = - generated .texi files don't work when run through texi2dvi -} +type TI m = StateT WriterState m + -- | Convert Pandoc to Texinfo. writeTexinfo :: PandocMonad m => WriterOptions -> Pandoc -> m String -writeTexinfo options document = return $ - evalState (pandocToTexinfo options $ wrapTop document) $ +writeTexinfo options document = + evalStateT (pandocToTexinfo options $ wrapTop document) $ WriterState { stStrikeout = False, stSuperscript = False, stEscapeComma = False, stSubscript = False, stIdentifiers = Set.empty, stOptions = options} @@ -73,7 +76,7 @@ wrapTop :: Pandoc -> Pandoc wrapTop (Pandoc meta blocks) = Pandoc meta (Header 0 nullAttr (docTitle meta) : blocks) -pandocToTexinfo :: WriterOptions -> Pandoc -> State WriterState String +pandocToTexinfo :: PandocMonad m => WriterOptions -> Pandoc -> TI m String pandocToTexinfo options (Pandoc meta blocks) = do let titlePage = not $ all null $ docTitle meta : docDate meta : docAuthors meta @@ -111,7 +114,7 @@ stringToTexinfo = escapeStringUsing texinfoEscapes , ('\x2019', "'") ] -escapeCommas :: State WriterState Doc -> State WriterState Doc +escapeCommas :: PandocMonad m => TI m Doc -> TI m Doc escapeCommas parser = do oldEscapeComma <- gets stEscapeComma modify $ \st -> st{ stEscapeComma = True } @@ -124,8 +127,9 @@ inCmd :: String -> Doc -> Doc inCmd cmd contents = char '@' <> text cmd <> braces contents -- | Convert Pandoc block element to Texinfo. -blockToTexinfo :: Block -- ^ Block to convert - -> State WriterState Doc +blockToTexinfo :: PandocMonad m + => Block -- ^ Block to convert + -> TI m Doc blockToTexinfo Null = return empty @@ -221,17 +225,19 @@ blockToTexinfo (Header level _ lst) = do idsUsed <- gets stIdentifiers let id' = uniqueIdent lst idsUsed modify $ \st -> st{ stIdentifiers = Set.insert id' idsUsed } + sec <- seccmd level return $ if (level > 0) && (level <= 4) then blankline <> text "@node " <> node $$ - text (seccmd level) <> txt $$ + text sec <> txt $$ text "@anchor" <> braces (text $ '#':id') else txt where - seccmd 1 = "@chapter " - seccmd 2 = "@section " - seccmd 3 = "@subsection " - seccmd 4 = "@subsubsection " - seccmd _ = error "illegal seccmd level" + seccmd :: PandocMonad m => Int -> TI m String + seccmd 1 = return "@chapter " + seccmd 2 = return "@section " + seccmd 3 = return "@subsection " + seccmd 4 = return "@subsubsection " + seccmd _ = throwError $ PandocSomeError "illegal seccmd level" blockToTexinfo (Table caption aligns widths heads rows) = do headers <- if all null heads @@ -257,28 +263,32 @@ blockToTexinfo (Table caption aligns widths heads rows) = do inCmd "caption" captionText $$ text "@end float" -tableHeadToTexinfo :: [Alignment] +tableHeadToTexinfo :: PandocMonad m + => [Alignment] -> [[Block]] - -> State WriterState Doc + -> TI m Doc tableHeadToTexinfo = tableAnyRowToTexinfo "@headitem " -tableRowToTexinfo :: [Alignment] +tableRowToTexinfo :: PandocMonad m + => [Alignment] -> [[Block]] - -> State WriterState Doc + -> TI m Doc tableRowToTexinfo = tableAnyRowToTexinfo "@item " -tableAnyRowToTexinfo :: String +tableAnyRowToTexinfo :: PandocMonad m + => String -> [Alignment] -> [[Block]] - -> State WriterState Doc + -> TI m Doc tableAnyRowToTexinfo itemtype aligns cols = zipWithM alignedBlock aligns cols >>= return . (text itemtype $$) . foldl (\row item -> row $$ (if isEmpty row then empty else text " @tab ") <> item) empty -alignedBlock :: Alignment +alignedBlock :: PandocMonad m + => Alignment -> [Block] - -> State WriterState Doc + -> TI m Doc -- XXX @flushleft and @flushright text won't get word wrapped. Since word -- wrapping is more important than alignment, we ignore the alignment. alignedBlock _ = blockListToTexinfo @@ -293,8 +303,9 @@ alignedBlock _ col = blockListToTexinfo col -} -- | Convert Pandoc block elements to Texinfo. -blockListToTexinfo :: [Block] - -> State WriterState Doc +blockListToTexinfo :: PandocMonad m + => [Block] + -> TI m Doc blockListToTexinfo [] = return empty blockListToTexinfo (x:xs) = do x' <- blockToTexinfo x @@ -336,15 +347,17 @@ collectNodes level (x:xs) = _ -> collectNodes level xs -makeMenuLine :: Block - -> State WriterState Doc +makeMenuLine :: PandocMonad m + => Block + -> TI m Doc makeMenuLine (Header _ _ lst) = do txt <- inlineListForNode lst return $ text "* " <> txt <> text "::" -makeMenuLine _ = error "makeMenuLine called with non-Header block" +makeMenuLine _ = throwError $ PandocSomeError "makeMenuLine called with non-Header block" -listItemToTexinfo :: [Block] - -> State WriterState Doc +listItemToTexinfo :: PandocMonad m + => [Block] + -> TI m Doc listItemToTexinfo lst = do contents <- blockListToTexinfo lst let spacer = case reverse lst of @@ -352,8 +365,9 @@ listItemToTexinfo lst = do _ -> empty return $ text "@item" $$ contents <> spacer -defListItemToTexinfo :: ([Inline], [[Block]]) - -> State WriterState Doc +defListItemToTexinfo :: PandocMonad m + => ([Inline], [[Block]]) + -> TI m Doc defListItemToTexinfo (term, defs) = do term' <- inlineListToTexinfo term let defToTexinfo bs = do d <- blockListToTexinfo bs @@ -364,13 +378,15 @@ defListItemToTexinfo (term, defs) = do return $ text "@item " <> term' $+$ vcat defs' -- | Convert list of inline elements to Texinfo. -inlineListToTexinfo :: [Inline] -- ^ Inlines to convert - -> State WriterState Doc +inlineListToTexinfo :: PandocMonad m + => [Inline] -- ^ Inlines to convert + -> TI m Doc inlineListToTexinfo lst = mapM inlineToTexinfo lst >>= return . hcat -- | Convert list of inline elements to Texinfo acceptable for a node name. -inlineListForNode :: [Inline] -- ^ Inlines to convert - -> State WriterState Doc +inlineListForNode :: PandocMonad m + => [Inline] -- ^ Inlines to convert + -> TI m Doc inlineListForNode = return . text . stringToTexinfo . filter (not . disallowedInNode) . stringify @@ -379,8 +395,9 @@ disallowedInNode :: Char -> Bool disallowedInNode c = c `elem` (".,:()" :: String) -- | Convert inline element to Texinfo -inlineToTexinfo :: Inline -- ^ Inline to convert - -> State WriterState Doc +inlineToTexinfo :: PandocMonad m + => Inline -- ^ Inline to convert + -> TI m Doc inlineToTexinfo (Span _ lst) = inlineListToTexinfo lst |