creole macro changed and improved. Help added

pages/help.py

 CREOLE += mycreole.render_simple("""
 = Piki Markup
 | {{{[[rel_path_to_page|Name]]}}} | will result in a Link to the given wiki page. |
-| {{{<<subpages>>}}} | will result in a list of all subpages below the current page. |
+| {{{<<subpages>>}}}              | will result in a list of all subpages below the current page. |
 | {{{<<subpages=N,startswith>>}}} | will result in a list of subpages below the current page.\
                                     N will reduce the depth of the subpages to N. \
-                                    startswith  will reduce the hits to all pages starting with the given string. 
+                                    startswith  will reduce the hits to all pages starting with the given string. \
                                     You can give one or both Parameters. |
+| {{{<<allpages>>}}}              | will result in a last of all pages. You can use [N,startswith] as with subpages. |
 """)
 
 ACCESS = mycreole.render_simple(_("""

pages/page.py

 from django.conf import settings
 
-# TODO: PRIO: BugFix if subpages filter is used without parameters
 # TODO: PRIO: Add wildcards for subpages filter
 # TODO: Add whoosh and search
 
                 depth = 9999
         #
         rv = ""
-        pathlist = fstools.dirlist(settings.PAGES_ROOT, rekursive=False)
-        pathlist.sort()
-        for path in pathlist:
-            contentname = self.__folder_content_filter__(os.path.basename(path))
+        # create a rel_path list
+        pathlist = [self.__folder_content_filter__(os.path.basename(path)) for path in fstools.dirlist(settings.PAGES_ROOT, rekursive=False)]
+        # sort basename
+        pathlist.sort(key=os.path.basename)
+
+        last_char = None
+        for contentname in pathlist:
             #
             if (contentname.startswith(self._rel_path) or allpages) and contentname != self._rel_path:
                 if allpages:
                 else:
                     name = contentname[len(self._rel_path)+1:]
                 if name.count('/') < depth and name.startswith(startname):
+                    if last_char != os.path.basename(name)[0].upper():
+                        last_char = os.path.basename(name)[0].upper()
+                        if last_char is not None:
+                            rv += "</ul>\n"
+                        rv += f'<h3>{last_char}</h3>\n<ul>\n'
                     rv += f'  <li><a href="{url_page(self._request, contentname)}">{name}</a></li>\n'
         if len(rv) > 0:
-            rv = "<ul>\n" + rv + "</ul>\n"
+            rv += "</ul>\n"
         return rv