comments

urls.py

@@ -96,6 +96,14 @@ NOTE
 
 - The final _edit and CATCHALL also have to use re_path().
 
+(?P<thing>)
+This strange syntax is not a Django funny, it is standard (but obscure) python.
+It denotes a "Named Capturing Group" 
+https://docs.python.org/3/howto/regex.html#non-capturing-and-named-groups
+https://dnmtechs.com/understanding-the-django-regular-expression-p-in-python-3/
+https://www.regular-expressions.info/named.html
+e.g. the regular expression:
+r'^(?P<path>.*)/(?P<slug>[^/]+)_cave_edit/$'
 
 Many of these patterns do not work because troggle spent many years broken and we have
 not yet restored all the functions. Some may have never been fully implemented in