diff options
Diffstat (limited to 'src/Text/Pandoc/Shared.hs')
| -rw-r--r-- | src/Text/Pandoc/Shared.hs | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/src/Text/Pandoc/Shared.hs b/src/Text/Pandoc/Shared.hs index f0e5bbe5d..51da34e79 100644 --- a/src/Text/Pandoc/Shared.hs +++ b/src/Text/Pandoc/Shared.hs @@ -1,5 +1,5 @@ {-# LANGUAGE DeriveDataTypeable, CPP, MultiParamTypeClasses, - FlexibleContexts, ScopedTypeVariables #-} + FlexibleContexts, ScopedTypeVariables, PatternGuards #-} {- Copyright (C) 2006-2014 John MacFarlane <jgm@berkeley.edu> @@ -99,7 +99,7 @@ import System.Environment (getProgName) import System.Exit (exitWith, ExitCode(..)) import Data.Char ( toLower, isLower, isUpper, isAlpha, isLetter, isDigit, isSpace ) -import Data.List ( find, isPrefixOf, intercalate ) +import Data.List ( find, stripPrefix, intercalate ) import qualified Data.Map as M import Network.URI ( escapeURIString, isURI, nonStrictRelativeTo, unEscapeString, parseURIReference, isAllowedInURI ) @@ -183,9 +183,9 @@ substitute :: (Eq a) => [a] -> [a] -> [a] -> [a] substitute _ _ [] = [] substitute [] _ xs = xs substitute target replacement lst@(x:xs) = - if target `isPrefixOf` lst - then replacement ++ substitute target replacement (drop (length target) lst) - else x : substitute target replacement xs + case stripPrefix target lst of + Just lst' -> replacement ++ substitute target replacement lst' + Nothing -> x : substitute target replacement xs ordNub :: (Ord a) => [a] -> [a] ordNub l = go Set.empty l @@ -808,9 +808,9 @@ fetchItem' media sourceURL s = do -- | Read from a URL and return raw data and maybe mime type. openURL :: String -> IO (Either E.SomeException (BS.ByteString, Maybe String)) openURL u - | "data:" `isPrefixOf` u = - let mime = takeWhile (/=',') $ drop 5 u - contents = B8.pack $ unEscapeString $ drop 1 $ dropWhile (/=',') u + | Just u' <- stripPrefix "data:" u = + let mime = takeWhile (/=',') u' + contents = B8.pack $ unEscapeString $ drop 1 $ dropWhile (/=',') u' in return $ Right (decodeLenient contents, Just mime) #ifdef HTTP_CLIENT | otherwise = withSocketsDo $ E.try $ do |