fix: hash in table of contents

Closes: #675

Author: lucascool12

lib/markdown2.py

@@ -1655,7 +1655,7 @@ def _h_tag_sub(self, match: re.Match[str]) -> str:
         text = match.string[match.start(): match.end()]
         h_level = int(match.group(1))
         # extract id= attr from tag, trying to account for regex "misses"
-        id_attr = (re.match(r'.*?id=(\S+)?.*', match.group(2) or '') or '')
+        id_attr = (re.match(r'.*?id="(\S+)?".*', match.group(2) or '') or '')
         if id_attr:
             # if id attr exists, extract that
             id_attr = id_attr.group(1) or ''

test/test_markdown2.py

@@ -313,6 +313,24 @@ def test_toc_with_persistent_object(self):
         self.assertEqual(expected_toc_html, md.convert(html).toc_html)
     test_toc_with_persistent_object.tags = ["toc", "issue208"]
 
+    def test_toc_with_inline_code(self):
+        """
+        Tests that the toc does not contain a hash entry when the header is inline code.
+        """
+        md = markdown2.Markdown(extras={
+            "header-ids": {"mixed": True,},
+            "toc": {"depth": 1},
+        })
+        html = """
+# `bla`
+        """
+        expected_toc_html = """<ul>
+  <li><a href="#bla"><code>bla</code></a></li>
+</ul>
+"""
+        self.assertEqual(expected_toc_html, md.convert(html).toc_html)
+    test_toc_with_inline_code.tags = ["toc", "issue675"]
+
 
 class DocTestsTestCase(unittest.TestCase):
     def test_api(self):