Better avoidance of tags in inline code

Author: facelessuser

markdown/extensions/md_in_html.py

@@ -253,10 +253,13 @@ def handle_empty_tag(self, data, is_block):
         if self.inraw or not self.mdstack:
             super().handle_empty_tag(data, is_block)
         else:
-            if self.at_line_start() and is_block:
-                self.handle_data('\n' + self.md.htmlStash.store(data) + '\n\n')
+            if self.at_line_start() or self.intail:
+                if is_block:
+                    self.handle_data('\n' + self.md.htmlStash.store(data) + '\n\n')
+                else:
+                    self.handle_data(self.md.htmlStash.store(data))
             else:
-                self.handle_data(self.md.htmlStash.store(data))
+                self.treebuilder.data(data)
 
     def parse_pi(self, i: int) -> int:
         if self.at_line_start() or self.intail or self.mdstack:

markdown/inlinepatterns.py

@@ -158,7 +158,13 @@ def build_inlinepatterns(md: Markdown, **kwargs: Any) -> util.Registry[InlinePro
 AUTOMAIL_RE = r'<([^<> !]+@[^@<> ]+)>'
 """ Match an automatic email link (`<[email protected]>`). """
 
-HTML_RE = r'(<(\/?[a-zA-Z][^<>@ ]*( [^<>]*)?|!--(?:(?!<!--|-->).)*--)>)'
+HTML_RE = (
+    r'(<(\/?[a-zA-Z][^<>@ ]*( [^<>]*)?|'           # Tag
+    r'!--(?:(?!<!--|-->).)*--|'                    # Comment
+    r'[?](?:(?!<[?]|[?]>).)*[?]|'                  # Processing instruction
+    r'<!\[CDATA\[(?:(?!<!\[CDATA\[|\]\]).)*\]\]|'  # `CDATA`
+    ')>)'
+)
 """ Match an HTML tag (`<...>`). """
 
 ENTITY_RE = r'(&(?:\#[0-9]+|\#x[0-9a-fA-F]+|[a-zA-Z0-9]+);)'