Merge pull request #465 from chuenchen309/fix/angle-link-href-backslash

Author: lepture

src/mistune/helpers.py

@@ -266,7 +266,10 @@ def _parse_angle_link_href(src: str, pos: int) -> Union[Tuple[str, int], Tuple[N
         c = src[pos]
         if c == ">":
             return src[start:pos], pos + 1
-        if c in "<\\\n\r\x00":
+        if c == "\\":
+            pos = min(pos + 2, len(src))
+            continue
+        if c in "<\n\r\x00":
             return None, None
         pos += 1
     return None, None

tests/test_misc.py

@@ -148,6 +148,14 @@ def test_link_bracket_cache_cases(self):
         for text, html in cases.items():
             self.assertEqual(mistune.html(text).strip(), html)
 
+    def test_angle_link_escaped_backslash(self):
+        cases = {
+            r"[link](<foo\*bar>)": '<p><a href="foo*bar">link</a></p>',
+            "[x]: <a\\*b>\n\n[x]": '<p><a href="a*b">x</a></p>',
+        }
+        for text, html in cases.items():
+            self.assertEqual(mistune.html(text).strip(), html, text)
+
     def test_allow_harmful_protocols(self):
         renderer = mistune.HTMLRenderer(allow_harmful_protocols=True)
         md = mistune.Markdown(renderer)