Fix opening HTML tag causing occasionally crashes when `markdown-in-h…

…tml` enabled

lib/markdown2.py

@@ -791,7 +791,7 @@ def _hash_html_block_sub(self, match, raw=False):
             except IndexError:
                 tag = None
 
-        tag = tag or re.match(r'^<(\S).*?>', html).group(1)
+        tag = tag or re.match(r'.*?<(\S).*?>', html).group(1)
 
         if raw and self.safe_mode:
             html = self._sanitize_html(html)
@@ -801,9 +801,9 @@ def _hash_html_block_sub(self, match, raw=False):
             if m:
                 lines = html.split('\n')
                 # if MD is on same line as opening tag then split across two lines
-                lines = list(filter(None, (re.split(r'(<%s.*markdown=.*?>)' % tag, lines[0])))) + lines[1:]
+                lines = list(filter(None, (re.split(r'(.*?<%s.*markdown=.*?>)' % tag, lines[0])))) + lines[1:]
                 # if MD on same line as closing tag, split across two lines
-                lines = lines[:-1] + list(filter(None, re.split(r'(</%s>.*?$)' % tag, lines[-1])))
+                lines = lines[:-1] + list(filter(None, re.split(r'(.*?</%s>.*?$)' % tag, lines[-1])))
                 # extract key sections of the match
                 first_line = lines[0]
                 middle = '\n'.join(lines[1:-1])

test/tm-cases/markdown_in_html_in_lists.html

@@ -34,4 +34,20 @@ <h6>Block three</h6>
 
 </div></li>
 </ul></li>
+
+
+<li><p>one two</p>
+
+ <p>
+
+<p><em>NOTE:</em> opening tag is slightly indented</p>
+
+</p></li>
+<li><p>three four</p>
+
+ <p>
+
+<p><em>NOTE:</em> both tags are slightly indented</p>
+
+ </p></li>
 </ul>

test/tm-cases/markdown_in_html_in_lists.text

@@ -15,3 +15,14 @@
     ###### Block three
     Some text
     </div>
+
+
+
+- one two
+   <p markdown="1">
+  *NOTE:* opening tag is slightly indented
+  </p>
+- three four
+   <p markdown="1">
+  *NOTE:* both tags are slightly indented
+   </p>