Proposal for improving the flexibility of the custom menu

Standard custom menu has a rather rigid behaviour related to roles, capabilities and reacting to the user situation.

I experiment for a long time now a flexible addition in custom menu items renderers that gives full flexibility to this menu, allowing items to be masked for non logged in users, or depending on some capability checks. This makes the menu much more consistant and avoids unconcerned people to see entries of menus that are deadend for them.

This technique implies enhancing a bit the actual syntax of the custom menu definition in General Theme settings :

How it is now :

label|url

or

• label|url (form some subentries)

What i added :

label|!url => only shown to logged in people
label|0!url => only shown to non logged in people
label|@!url => only shows to non anonymous (logged in AND non logged guests)
label|0@!url => only shown to anonymous (logged out, OR guests)
label|<capabilityname>!url => only shown to people having the capability (course or system tested)
label|^<capabilityname>!url => only shown to people NOT having the capability (course or system tested)

In addition, i added the following processing to URLs and labels in order to give full parametrability :

Internationalisation : all labels are format_string() processed

dynamic injection : the following tags are processed for replacement :

%COURSEID%
%USERID%
%WWWROOT%