Added Ext_autolink_urls.

README

@@ -2254,6 +2254,10 @@ Note that the pandoc document model does not support
 abbreviations, so if this extension is enabled, abbreviation keys are
 simply skipped (as opposed to being parsed as paragraphs).
 
+**Extension: `autolink_urls`**\
+Makes all absolute URLs into links, even when not surrounded by
+pointy braces `<...>`.
+
 Producing slide shows with Pandoc
 =================================
 

src/Text/Pandoc/Options.hs

@@ -73,6 +73,7 @@ data Extension =
                                   --   iff container has attribute 'markdown'
     | Ext_escaped_line_breaks     -- ^ Treat a backslash at EOL as linebreak
     | Ext_monospace_autolinks -- ^ Put autolink text in monospace font
+    | Ext_autolink_urls       -- ^ Make all absolute URLs into links
     | Ext_fancy_lists         -- ^ Enable fancy list numbers and delimiters
     | Ext_startnum            -- ^ Make start number of ordered list significant
     | Ext_definition_lists    -- ^ Definition lists as in pandoc, mmd, php

src/Text/Pandoc/Readers/Markdown.hs

@@ -1159,6 +1159,7 @@ table = try $ do
 
 inline :: Parser [Char] ParserState (F Inlines)
 inline = choice [ whitespace
+                , bareURL
                 , str
                 , endline
                 , code
@@ -1471,6 +1472,14 @@ referenceLink constructor (lab, raw) = do
        Nothing        -> (\x -> B.str "[" <> x <> B.str "]" <> B.str raw') <$> fallback
        Just (src,tit) -> constructor src tit <$> lab
 
+bareURL :: Parser [Char] ParserState (F Inlines)
+bareURL = try $ do
+  guardEnabled Ext_autolink_urls
+  (orig, src) <- uri <|> emailAddress
+  (guardEnabled Ext_monospace_autolinks >>
+       return (return $ B.link src "" (B.codeWith ("",["url"],[]) orig)))
+    <|> return (return $ B.link src "" (B.str orig))
+
 autoLink :: Parser [Char] ParserState (F Inlines)
 autoLink = try $ do
   char '<'