lists are not tables - fixes Python-Markdown#478 (Python-Markdown#507)

markdown/extensions/tables.py

@@ -30,7 +30,8 @@ def test(self, parent, block):
         rows = block.split('\n')
         return (len(rows) > 1 and '|' in rows[0] and
                 '|' in rows[1] and '-' in rows[1] and
-                rows[1].strip()[0] in ['|', ':', '-'])
+                rows[1].strip()[0] in ['|', ':', '-'] and
+                set(rows[1]) <= set('|:- '))
 
     def run(self, parent, blocks):
         """ Parse a table block and build table. """

tests/extensions/extra/tables.html

@@ -250,4 +250,9 @@ <h2>Table Tests</h2>
 <td>(<code>bar</code>) and <code>baz</code>.</td>
 </tr>
 </tbody>
-</table>
+</table>
+<p>Lists are not tables</p>
+<ul>
+<li>this | should | not</li>
+<li>be | a | table</li>
+</ul>

tests/extensions/extra/tables.txt

@@ -45,7 +45,7 @@ Three spaces in front of a table:
    | Content Cell | Content Cell  |
 
 Four spaces is a code block:
-   
+
     First Header | Second Header
     ------------ | -------------
     Content Cell | Content Cell
@@ -74,4 +74,9 @@ A test for issue #440:
 
 foo | bar
 --- | ---
-foo | (`bar`) and `baz`.
+foo | (`bar`) and `baz`.
+
+Lists are not tables
+
+ - this | should | not
+ - be | a | table