Fix issue #174: Correct URL regex and add definition list detection

- Fixed malformed URL_REGEX pattern to properly match inline and reference links
- Added conservative detection for definition lists with markup to prevent wrapping
- Removed trailing whitespace for code cleanliness
- Updated test expectations to reflect corrected link handling behavior

This resolves incorrect URL splitting and improves preservation of structured docstring elements.

Author: jaysheeldodia

src/docformatter/constants.py

@@ -193,7 +193,7 @@
 #   (\S*) matches any non-whitespace character between zero and infinity times.
 #   >? matches the character > between zero and one times.
 URL_REGEX = (
-    rf"(__ |`{{2}}|`\w[\w :#\n]*[.|\.\. _?[\w. :]+|')?<?"
+    rf"(__ |`{{2}}|`\w[\w :#\n]*|\.\. _[\w. :]+|')?<?"
     rf"({URL_PATTERNS}):(\//)?(\S*)>?"
 )
 

src/docformatter/patterns/fields.py

@@ -109,7 +109,7 @@ def do_find_field_lists(
             if numpy_matches:
                 _field_idx = [(_field.start(0), _field.end(0)) for _field in numpy_matches]
                 _wrap_parameters = False
-                
+
     return _field_idx, _wrap_parameters
 
 

src/docformatter/patterns/lists.py

@@ -82,6 +82,30 @@ def is_type_of_list(
 
     if is_field_list(text, style):
         return False
+    
+    # Check for definition list pattern (term followed by indented definition)
+    # This is a conservative check that only triggers for terms with special markup
+    for i, line in enumerate(split_lines):
+        # Skip empty lines and lines ending with ':' or starting with '<' (URLs)
+        if not line.strip() or line.rstrip().endswith(':') or line.strip().startswith('<'):
+            continue
+        # Check if next line exists and is indented more than current line
+        if i < len(split_lines) - 1:
+            next_line = split_lines[i + 1]
+            # If current line has content and next line is indented, it might be a definition list
+            if line.strip() and next_line.startswith('  ') and next_line.strip():
+                # Additional check: current line shouldn't start with common list markers
+                if not (line.strip().startswith(('*', '-', '+')) or 
+                       line.strip()[0:2].rstrip().isdigit()):
+                    # Skip if this looks like an inline link continuation:
+                    # Line has backtick but doesn't end with >`_ and next line starts with <
+                    if ('`' in line and not line.rstrip().endswith('>`_') and 
+                        next_line.strip().startswith('<')):
+                        continue
+                    # Only consider it a definition list if the term has special markup like ``term``
+                    # This is a conservative check to avoid false positives
+                    if '``' in line:
+                        return True
 
     # Check for various list patterns
     for line in split_lines:

tests/test_docformatter.py

@@ -478,15 +478,11 @@ def test_ignore_already_wrapped_link(
         See issue #150.
         """
         assert '''\
-@@ -1,6 +1,7 @@
- def foo():
-     """Description from issue #150 that was being improperly wrapped.
+@@ -3,4 +3,5 @@
  
--    The text file can be retrieved via the Chrome plugin `Get
--    Cookies.txt <https://chrome.google.com/webstore/detail/get-
+     The text file can be retrieved via the Chrome plugin `Get
+     Cookies.txt <https://chrome.google.com/webstore/detail/get-
 -    cookiestxt/bgaddhkoddajcdgocldbbfleckgcbcid>` while browsing."""
-+    The text file can be retrieved via the Chrome plugin
-+    `Get Cookies.txt <https://chrome.google.com/webstore/detail/get-
 +    cookiestxt/bgaddhkoddajcdgocldbbfleckgcbcid>` while browsing.
 +    """
 ''' == "\n".join(