Fix list patterns in FancyList (#2576)

Prevent detecting a list when a line starts with `.` or `)`.

Fixes #2575

Author: facelessuser

docs/src/markdown/about/changelog.md

@@ -1,5 +1,9 @@
 # Changelog
 
+## 10.14.2
+
+-   **FIX**: FancyLists: Fix case were lists could be falsely created when a line started with `.` or `)`.
+
 ## 10.14.1
 
 -   **FIX**: MagicLink: Ensure that repo names that start with `.` are handled correctly.

pymdownx/__meta__.py

@@ -185,5 +185,5 @@ def parse_version(ver, pre=False):
     return Version(major, minor, micro, release, pre, post, dev)
 
 
-__version_info__ = Version(10, 14, 1, "final")
+__version_info__ = Version(10, 14, 2, "final")
 __version__ = __version_info__._get_canonical()

pymdownx/fancylists.py

@@ -109,7 +109,8 @@ def __init__(self, parser, config):
               (?:C[MD]|D(?:C{0,4}|C{5}\b)|(?:C{0,9}|C{10}\b))
               (?:X[CL]|L(?:X{0,4}|X{5}\b)|(?:X{0,9}|X{10}\b))
               (?:I[XV]|V(?:I{0,4}|I{5}\b)|(?:I{0,9}|I{10}\b))
-            | m*
+            | (?=[ivxlcdm])
+              m*
               (?:c[md]|d(?:c{0,4}|c{5}\b)|(?:c{0,9}|c{10}\b))
               (?:x[cl]|l(?:x{0,4}|x{5}\b)|(?:x{0,9}|x{10}\b))
               (?:i[xv]|v(?:i{0,4}|i{5}\b)|(?:i{0,9}|i{10}\b))

tests/test_extensions/test_fancylists.py

@@ -8,6 +8,30 @@ class TestFancyLists(util.MdCase):
     extension = ['pymdownx.fancylists', 'pymdownx.saneheaders']
     extension_configs = {}
 
+    def test_fail_case(self):
+        """Test failed case."""
+
+        self.check_markdown(
+            """
+            1. foo
+            . bar
+
+            1) foo
+            ) bar
+            """,
+            """
+            <ol type="1">
+            <li>foo
+            . bar</li>
+            </ol>
+            <ol type="1">
+            <li>foo
+            ) bar</li>
+            </ol>
+            """,
+            True
+        )
+
     def test_unordered(self):
         """Test unordered lists."""