From 1100bfc0e67954760c0c1767018404bf0129dd01 Mon Sep 17 00:00:00 2001
From: Alexander Krotov <ilabdsf@gmail.com>
Date: Wed, 30 May 2018 02:25:30 +0300
Subject: Muse reader: parse image URLs without "guard" and "takeExtension"

---
 src/Text/Pandoc/Readers/Muse.hs | 8 +++-----
 test/Tests/Readers/Muse.hs      | 3 +++
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/src/Text/Pandoc/Readers/Muse.hs b/src/Text/Pandoc/Readers/Muse.hs
index e8b7d24f7..9eda0d4f3 100644
--- a/src/Text/Pandoc/Readers/Muse.hs
+++ b/src/Text/Pandoc/Readers/Muse.hs
@@ -52,7 +52,6 @@ import qualified Data.Map as M
 import qualified Data.Set as Set
 import Data.Maybe (fromMaybe, isNothing)
 import Data.Text (Text, unpack)
-import System.FilePath (takeExtension)
 import Text.HTML.TagSoup
 import Text.Pandoc.Builder (Blocks, Inlines)
 import qualified Text.Pandoc.Builder as B
@@ -966,14 +965,13 @@ explicitLink = try $ do
 image :: PandocMonad m => MuseParser m (F Inlines)
 image = try $ do
   string "[["
-  url <- manyTill anyChar $ char ']'
+  (url, ext) <- manyUntil (noneOf "]") $ (imageExtension <* char ']')
   content <- optionMaybe linkContent
   char ']'
-  guard $ isImageUrl url
-  return $ B.image url "" <$> fromMaybe (return mempty) content
+  return $ B.image (url ++ ext) "" <$> fromMaybe (return mempty) content
   where -- Taken from muse-image-regexp defined in Emacs Muse file lisp/muse-regexps.el
         imageExtensions = [".eps", ".gif", ".jpg", ".jpeg", ".pbm", ".png", ".tiff", ".xbm", ".xpm"]
-        isImageUrl = (`elem` imageExtensions) . takeExtension
+        imageExtension = choice (try . string <$> imageExtensions)
 
 link :: PandocMonad m => MuseParser m (F Inlines)
 link = try $ do
diff --git a/test/Tests/Readers/Muse.hs b/test/Tests/Readers/Muse.hs
index ddfedbff4..6b4e0fdbd 100644
--- a/test/Tests/Readers/Muse.hs
+++ b/test/Tests/Readers/Muse.hs
@@ -194,6 +194,9 @@ tests =
         , "Image" =:
           "[[image.jpg]]" =?>
           para (image "image.jpg" "" mempty)
+        , "Closing bracket is not allowed in image filename" =:
+          "[[foo]bar.jpg]]" =?>
+          para (text "[[foo]bar.jpg]]")
         , "Image with description" =:
           "[[image.jpg][Image]]" =?>
           para (image "image.jpg" "" (text "Image"))
-- 
cgit v1.2.3