Support video tag with poster attribute (#189)

Author: itmammoth

Diff for: markdownify/__init__.py

@@ -538,6 +538,24 @@ def convert_img(self, el, text, parent_tags):
 
         return '![%s](%s%s)' % (alt, src, title_part)
 
+    def convert_video(self, el, text, parent_tags):
+        if ('_inline' in parent_tags
+                and el.parent.name not in self.options['keep_inline_images_in']):
+            return text
+        src = el.attrs.get('src', None) or ''
+        if not src:
+            sources = el.find_all('source', attrs={'src': True})
+            if sources:
+                src = sources[0].attrs.get('src', None) or ''
+        poster = el.attrs.get('poster', None) or ''
+        if src and poster:
+            return '[![%s](%s)](%s)' % (text, poster, src)
+        if src:
+            return '[%s](%s)' % (text, src)
+        if poster:
+            return '![%s](%s)' % (text, poster)
+        return text
+
     def convert_list(self, el, text, parent_tags):
 
         # Converting a list to inline is undefined.

Diff for: tests/test_conversions.py

@@ -243,6 +243,14 @@ def test_img():
     assert md('<img src="/path/to/img.jpg" alt="Alt text" />') == '![Alt text](/path/to/img.jpg)'
 
 
+def test_video():
+    assert md('<video src="/path/to/video.mp4" poster="/path/to/img.jpg">text</video>') == '[![text](/path/to/img.jpg)](/path/to/video.mp4)'
+    assert md('<video src="/path/to/video.mp4">text</video>') == '[text](/path/to/video.mp4)'
+    assert md('<video><source src="/path/to/video.mp4"/>text</video>') == '[text](/path/to/video.mp4)'
+    assert md('<video poster="/path/to/img.jpg">text</video>') == '![text](/path/to/img.jpg)'
+    assert md('<video>text</video>') == 'text'
+
+
 def test_kbd():
     inline_tests('kbd', '`')