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-rw-r--r--src/Text/Pandoc/Writers/FB2.hs43
1 files changed, 19 insertions, 24 deletions
diff --git a/src/Text/Pandoc/Writers/FB2.hs b/src/Text/Pandoc/Writers/FB2.hs
index 803617f95..233b8b32b 100644
--- a/src/Text/Pandoc/Writers/FB2.hs
+++ b/src/Text/Pandoc/Writers/FB2.hs
@@ -1,3 +1,5 @@
+{-# LANGUAGE PatternGuards #-}
+
{-
Copyright (c) 2011-2012, Sergey Astanin
All rights reserved.
@@ -28,8 +30,8 @@ module Text.Pandoc.Writers.FB2 (writeFB2) where
import Control.Monad.State (StateT, evalStateT, get, modify)
import Control.Monad.State (liftM, liftM2, liftIO)
import Data.ByteString.Base64 (encode)
-import Data.Char (toUpper, toLower, isSpace, isAscii, isControl)
-import Data.List (intersperse, intercalate, isPrefixOf)
+import Data.Char (toLower, isSpace, isAscii, isControl)
+import Data.List (intersperse, intercalate, isPrefixOf, stripPrefix)
import Data.Either (lefts, rights)
import Network.Browser (browse, request, setAllowRedirects, setOutHandler)
import Network.HTTP (catchIO_, getRequest, getHeaders, getResponseBody)
@@ -44,8 +46,7 @@ import qualified Text.XML.Light.Cursor as XC
import Text.Pandoc.Definition
import Text.Pandoc.Options (WriterOptions(..), HTMLMathMethod(..), def)
-import Text.Pandoc.Shared (orderedListMarkers, isHeaderBlock)
-import Text.Pandoc.Walk
+import Text.Pandoc.Shared (orderedListMarkers, isHeaderBlock, capitalize)
-- | Data to be written at the end of the document:
-- (foot)notes, URLs, references, images.
@@ -253,22 +254,21 @@ readDataURI :: String -- ^ URI
-> Maybe (String,String,Bool,String)
-- ^ Maybe (mime,charset,isBase64,data)
readDataURI uri =
- let prefix = "data:"
- in if not (prefix `isPrefixOf` uri)
- then Nothing
- else
- let rest = drop (length prefix) uri
- meta = takeWhile (/= ',') rest -- without trailing ','
- uridata = drop (length meta + 1) rest
- parts = split (== ';') meta
- (mime,cs,enc)=foldr upd ("text/plain","US-ASCII",False) parts
- in Just (mime,cs,enc,uridata)
+ case stripPrefix "data:" uri of
+ Nothing -> Nothing
+ Just rest ->
+ let meta = takeWhile (/= ',') rest -- without trailing ','
+ uridata = drop (length meta + 1) rest
+ parts = split (== ';') meta
+ (mime,cs,enc)=foldr upd ("text/plain","US-ASCII",False) parts
+ in Just (mime,cs,enc,uridata)
+
where
upd str m@(mime,cs,enc)
- | isMimeType str = (str,cs,enc)
- | "charset=" `isPrefixOf` str = (mime,drop (length "charset=") str,enc)
- | str == "base64" = (mime,cs,True)
- | otherwise = m
+ | isMimeType str = (str,cs,enc)
+ | Just str' <- stripPrefix "charset=" str = (mime,str',enc)
+ | str == "base64" = (mime,cs,True)
+ | otherwise = m
-- Without parameters like ;charset=...; see RFC 2045, 5.1
isMimeType :: String -> Bool
@@ -296,7 +296,6 @@ fetchURL url = do
let content_type = lookupHeader HdrContentType (getHeaders r)
content <- liftM (Just . toStr . encode . toBS) . getResponseBody $ Right r
return $ liftM2 (,) content_type content
- where
toBS :: String -> B.ByteString
toBS = B.pack . map (toEnum . fromEnum)
@@ -421,10 +420,6 @@ indent = indentBlock
indentLines ins = let lns = split isLineBreak ins :: [[Inline]]
in intercalate [LineBreak] $ map ((Str spacer):) lns
-capitalize :: Inline -> Inline
-capitalize (Str xs) = Str $ map toUpper xs
-capitalize x = x
-
-- | Convert a Pandoc's Inline element to FictionBook XML representation.
toXml :: Inline -> FBM [Content]
toXml (Str s) = return [txt s]
@@ -434,7 +429,7 @@ toXml (Strong ss) = list `liftM` wrap "strong" ss
toXml (Strikeout ss) = list `liftM` wrap "strikethrough" ss
toXml (Superscript ss) = list `liftM` wrap "sup" ss
toXml (Subscript ss) = list `liftM` wrap "sub" ss
-toXml (SmallCaps ss) = cMapM toXml $ walk capitalize ss
+toXml (SmallCaps ss) = cMapM toXml $ capitalize ss
toXml (Quoted SingleQuote ss) = do -- FIXME: should be language-specific
inner <- cMapM toXml ss
return $ [txt "‘"] ++ inner ++ [txt "’"]