Renamed link attribute extensions.

* Old `link_attributes` -> `mmd_link_attributes`
* Recently added `common_link_attributes` -> `link_attributes`

Note: this change could break some existing workflows.

README

@@ -2917,7 +2917,7 @@ nonbreaking space after the image:
 
     ![This image won't be a figure](/url/of/image.png)\ 
 
-#### Extension: `common_link_attributes` ####
+#### Extension: `link_attributes` ####
 
 Attributes can be set on links and images:
 
@@ -3270,11 +3270,11 @@ Causes the identifiers produced by `auto_identifiers` to be pure ASCII.
 Accents are stripped off of accented latin letters, and non-latin
 letters are omitted.
 
-#### Extension: `link_attributes` ####
+#### Extension: `mmd_link_attributes` ####
 
 Parses multimarkdown style key-value attributes on link
 and image references. This extension should not be confused with the
-[`common_link_attributes`](#extension-common_link_attributes) extension.
+[`link_attributes`](#extension-link_attributes) extension.
 
     This is a reference ![image][ref] with multimarkdown attributes.
 
@@ -3322,7 +3322,7 @@ variants are supported:
 `markdown_phpextra` (PHP Markdown Extra)
 :   `footnotes`, `pipe_tables`, `raw_html`, `markdown_attribute`,
     `fenced_code_blocks`, `definition_lists`, `intraword_underscores`,
-    `header_attributes`, `common_link_attributes`, `abbreviations`,
+    `header_attributes`, `link_attributes`, `abbreviations`,
     `shortcut_reference_links`.
 
 `markdown_github` (GitHub-Flavored Markdown)
@@ -3333,7 +3333,7 @@ variants are supported:
     `shortcut_reference_links`.
 
 `markdown_mmd` (MultiMarkdown)
-:   `pipe_tables` `raw_html`, `markdown_attribute`, `link_attributes`,
+:   `pipe_tables` `raw_html`, `markdown_attribute`, `mmd_link_attributes`,
     `raw_tex`, `tex_math_double_backslash`, `intraword_underscores`,
     `mmd_title_block`, `footnotes`, `definition_lists`,
     `all_symbols_escapable`, `implicit_header_references`,

src/Text/Pandoc/Options.hs

@@ -86,8 +86,8 @@ data Extension =
     | Ext_markdown_attribute      -- ^ Interpret text inside HTML as markdown
                                   --   iff container has attribute 'markdown'
     | Ext_escaped_line_breaks     -- ^ Treat a backslash at EOL as linebreak
-    | Ext_common_link_attributes  -- ^ link and image attributes
-    | Ext_link_attributes     -- ^ MMD style reference link attributes
+    | Ext_link_attributes         -- ^ link and image attributes
+    | Ext_mmd_link_attributes     -- ^ MMD style reference link attributes
     | Ext_autolink_bare_uris  -- ^ Make all absolute URIs into links
     | Ext_fancy_lists         -- ^ Enable fancy list numbers and delimiters
     | Ext_lists_without_preceding_blankline -- ^ Allow lists without preceding blank
@@ -156,7 +156,7 @@ pandocExtensions = Set.fromList
   , Ext_subscript
   , Ext_auto_identifiers
   , Ext_header_attributes
-  , Ext_common_link_attributes
+  , Ext_link_attributes
   , Ext_implicit_header_references
   , Ext_line_blocks
   , Ext_shortcut_reference_links
@@ -190,7 +190,7 @@ phpMarkdownExtraExtensions = Set.fromList
   , Ext_definition_lists
   , Ext_intraword_underscores
   , Ext_header_attributes
-  , Ext_common_link_attributes
+  , Ext_link_attributes
   , Ext_abbreviations
   , Ext_shortcut_reference_links
   ]
@@ -218,7 +218,7 @@ multimarkdownExtensions = Set.fromList
   [ Ext_pipe_tables
   , Ext_raw_html
   , Ext_markdown_attribute
-  , Ext_link_attributes
+  , Ext_mmd_link_attributes
   , Ext_raw_tex
   , Ext_tex_math_double_backslash
   , Ext_intraword_underscores

src/Text/Pandoc/Readers/Markdown.hs

@@ -368,15 +368,15 @@ referenceKey = try $ do
   let sourceURL = liftM unwords $ many $ try $ do
                     skipMany spaceChar
                     notFollowedBy' referenceTitle
-                    notFollowedBy' $ guardEnabled Ext_common_link_attributes >> attributes
+                    notFollowedBy' $ guardEnabled Ext_link_attributes >> attributes
                     notFollowedBy' (() <$ reference)
                     many1 $ notFollowedBy space >> litChar
   let betweenAngles = try $ char '<' >> manyTill litChar (char '>')
   src <- try betweenAngles <|> sourceURL
   tit <- option "" referenceTitle
   attr   <- option nullAttr $ try $
-              guardEnabled Ext_common_link_attributes >> skipSpaces >> attributes
-  addKvs <- option [] $ guardEnabled Ext_link_attributes
+              guardEnabled Ext_link_attributes >> skipSpaces >> attributes
+  addKvs <- option [] $ guardEnabled Ext_mmd_link_attributes
                           >> many (try $ spnl >> keyValAttr)
   blanklines
   let attr'  = extractIdClass $ foldl (\x f -> f x) attr addKvs
@@ -1729,7 +1729,7 @@ regLink :: (Attr -> String -> String -> Inlines -> Inlines)
 regLink constructor lab = try $ do
   (src, tit) <- source
   attr <- option nullAttr $
-          guardEnabled Ext_common_link_attributes >> attributes
+          guardEnabled Ext_link_attributes >> attributes
   return $ constructor attr src tit <$> lab
 
 -- a link like [this][ref] or [this][] or [this]

src/Text/Pandoc/Writers/Markdown.hs

@@ -287,7 +287,7 @@ attrsToMarkdown attribs = braces $ hsep [attribId, attribClasses, attribKeys]
 
 linkAttributes :: WriterOptions -> Attr -> Doc
 linkAttributes opts attr =
-  if isEnabled Ext_common_link_attributes opts && attr /= nullAttr
+  if isEnabled Ext_link_attributes opts && attr /= nullAttr
      then attrsToMarkdown attr
      else empty