make convert_hn() public instead of internal

Signed-off-by: chrispy <[email protected]>

Author: chrispy-snps

markdownify/__init__.py

@@ -362,11 +362,11 @@ def get_conv_fn(self, tag_name):
         if not self.should_convert_tag(tag_name):
             return None
 
-        # Handle headings with _convert_hn() function
+        # Handle headings with convert_hn() function
         match = re_html_heading.match(tag_name)
         if match:
             n = int(match.group(1))
-            return lambda el, text, parent_tags: self._convert_hn(n, el, text, parent_tags)
+            return lambda el, text, parent_tags: self.convert_hn(n, el, text, parent_tags)
 
         # For other tags, look up their conversion function by tag name
         convert_fn_name = "convert_%s" % re_make_convert_fn_name.sub('_', tag_name)
@@ -509,12 +509,12 @@ def convert_dt(self, el, text, parent_tags):
 
         return '\n\n%s\n' % text
 
-    def _convert_hn(self, n, el, text, parent_tags):
-        """ Method name prefixed with _ to prevent <hn> to call this """
+    def convert_hn(self, n, el, text, parent_tags):
+        # convert_hn() converts <h#> tags, where # is any integer
         if '_inline' in parent_tags:
             return text
 
-        # prevent MemoryErrors in case of very large n
+        # Markdown does not support heading depths of n > 6
         n = max(1, min(6, n))
 
         style = self.options['heading_style'].lower()

tests/test_conversions.py

@@ -164,7 +164,8 @@ def test_hn():
     assert md('<h5>Hello</h5>') == '\n\n##### Hello\n\n'
     assert md('<h6>Hello</h6>') == '\n\n###### Hello\n\n'
     assert md('<h10>Hello</h10>') == md('<h6>Hello</h6>')
-    assert md('<hn>Hello</hn>') == md('Hello')
+    assert md('<h0>Hello</h0>') == md('<h1>Hello</h1>')
+    assert md('<hx>Hello</hx>') == md('Hello')
 
 
 def test_hn_chained():