fix: ensure new line at end of the text

src/mistune/markdown.py

@@ -70,9 +70,7 @@ def parse(self, s: str, state: Optional[BlockState]=None):
         # normalize line separator
         s = s.replace('\r\n', '\n')
         s = s.replace('\r', '\n')
-
-        # ensure new line at end
-        if s[-1] != '\n':
+        if not s.endswith('\n'):
             s += '\n'
 
         state.process(s)

src/mistune/renderers/html.py

@@ -132,7 +132,7 @@ def block_quote(self, text: str) -> str:
 
     def block_html(self, html: str) -> str:
         if self._escape:
-            return '<p>' + escape_text(html) + '</p>\n'
+            return '<p>' + escape_text(html.strip()) + '</p>\n'
         return html + '\n'
 
     def block_error(self, text: str) -> str:

tests/test_misc.py

@@ -42,6 +42,11 @@ def test_harmful_links(self):
         expected = '<p><a href="#harmful-link">h</a></p>'
         self.assertEqual(result.strip(), expected)
 
+    def test_ref_link(self):
+        result = mistune.html('[link][h]\n\n[h]: /foo')
+        expected = '<p><a href="/foo">link</a></p>'
+        self.assertEqual(result.strip(), expected)
+
     def test_allow_harmful_protocols(self):
         renderer = mistune.HTMLRenderer(allow_harmful_protocols=True)
         md = mistune.Markdown(renderer)