added named capturing groups and added examples to docstrings

src/migmose/parsing.py

@@ -160,21 +160,36 @@ def parse_raw_nachrichtenstrukturzeile(input_path: Path) -> list[str]:
 
 
 _pattern = re.compile(
-    r"MIG(?:Strom|Gas)?-?informatorischeLesefassung?((\d+)\.(\d+)([a-z]?))"
+    r"MIG(?:Strom|Gas)?-?informatorischeLesefassung?(?P<version>(?P<major>\d+)\.(?P<minor>\d+)(?P<suffix>[a-z]?))"
     r"(?:_|KonsolidierteLesefassung|-AußerordentlicheVeröffentlichung)",
     re.IGNORECASE,
 )
 
 
 def _extract_document_version(path: Path | str) -> tuple[str, int | None, int | None, str]:
-    """Returns the document version, major, minor, and suffix from the given file path."""
+    """
+    Extracts the document version (major.minor+suffix) details from the given file path.
+
+    Args:
+        path (Path | str): The path to the file.
+        Example: path/to/file/ORDCHGMIG-informatorischeLesefassung1.1a_99991231_20231001.docx
+        -> version: 1.1a, major: 1, minor: 1, suffix: a
+
+    Returns:
+        tuple: A tuple containing the document version (str), major version (int or None),
+                minor version (int or None), and suffix (str).
+    """
+
     if isinstance(path, str):
         document_str = path
     else:
         document_str = str(path)
     matches = _pattern.search(document_str)
     if matches:
-        document_version, major, minor, suffix = matches.groups()
+        document_version = matches.group("version")
+        major = matches.group("major")
+        minor = matches.group("minor")
+        suffix = matches.group("suffix")
         if document_version == "":
             logger.warning(f"❌ No document version found in {path}.", fg="red")
         return document_version or "", int(major) or 0, int(minor) or 0, suffix or ""
@@ -186,11 +201,14 @@ def _get_sort_key(path: Path) -> tuple[int, int, int | None, int | None, str]:
     """
     Extracts the sort key from the given path.
 
-    Parameters:
-    - path (Path): The path object to extract the sort key from.
+    Args:
+        path (Path): The path object to extract the sort key from.
+            Example: path/to/file/ORDCHGMIG-informatorischeLesefassung1.1a_99991231_20231001.docx
+            with gueltig_von_date: 20231001 and gueltig_bis_date: 99991231, major: 1, minor: 1, suffix: a
 
     Returns:
-    - tuple: A tuple containing the "gültig von" date, "gültig bis" date, and version number.
+        tuple: A tuple containing the "gültig von" date (int),
+                "gültig bis" date (int), major version (int or None), minor version (int or None), and suffix (str).
     """
     parts = path.stem.split("_")
     gueltig_von_date = int(parts[-1])