Added figure implementation and tests

src/MdToHTML.hs

@@ -37,6 +37,7 @@ data MdToken
   | Codeblock String
   | Link MdToken URL
   | Image MdToken ImgPath
+  | Figure MdToken ImgPath
   | Bold MdToken
   | Italic MdToken
   | Strikethrough MdToken
@@ -59,6 +60,7 @@ instance Show MdToken where
   show (Codeblock code) = show code
   show (Link txt url) = "<a href=\"" ++ getUrl url ++ "\">" ++ show txt ++ "</a>"
   show (Image txt imgPath) = "<img src=\"" ++ getPath imgPath ++ "\"" ++ " alt=\"" ++ show txt ++ "\" />"
+  show (Figure txt imgPath) = "<figure><img src=\"" ++ getPath imgPath ++ "\" alt=\"" ++ show txt ++ "\"/><figcaption aria-hidden=\"true\">" ++ show txt ++ "</figcaption></figure>"
   show (Bold token) = "<b>" ++ show token ++ "</b>"
   show (Italic token) = "<i>" ++ show token ++ "</i>"
   show (Strikethrough token) = "<s>" ++ show token ++ "</s>"
@@ -205,6 +207,13 @@ parseImage = do
   char ')'
   return $ Image (Line altText) (ImgPath path)
 
+parseFigure = do
+  img <- parseImage
+  void (string "\n\n") <++ eof
+  case img of
+    Image text path -> return $ Figure text path
+    _ -> return img
+
 -- Parse an escaped character
 parseEscapedChar :: ReadP MdToken
 parseEscapedChar = do
@@ -400,6 +409,7 @@ documentParsers =
     parseBlockquote,
     parseUnorderedList,
     parseOrderedList,
+    parseFigure,
     parsePara
   ]
 

src/MdToHtmlTest.hs

@@ -102,8 +102,12 @@ codeTests =
 
 imageTests =
   TestList
-    [ check_equal "Image by itself" "<p><img src=\"img.png\" alt=\"Image 1\" /></p>" (convert "![Image 1](img.png)"),
+    [ check_equal "Image with text" "<p>This is an image <img src=\"img.png\" alt=\"Image 1\" /></p>" (convert "This is an image ![Image 1](img.png)")
-      check_equal "Image with text" "<p>This is an image <img src=\"img.png\" alt=\"Image 1\" /></p>" (convert "This is an image ![Image 1](img.png)")
+    ]
+
+figureTests =
+  TestList
+    [ check_equal "Image by itself" "<figure><img src=\"img.png\" alt=\"Image 1\"/><figcaption aria-hidden=\"true\">Image 1</figcaption></figure>" (convert "![Image 1](img.png)")
     ]
 
 integrationTests =
@@ -141,6 +145,7 @@ tests =
       unorderedListTests,
       orderedListTests,
       imageTests,
+      figureTests,
       codeTests,
       integrationTests
     ]