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<visibility>
   <allowed/>
   <autoSubscribed/>
   <obliged>
      <group name="local.0"/>
      <group .../>
      ...
      <regular attribute="sn" value="user" />
      <regular .../>
      ...
   <   <regex attribute="isMemberOf" pattern="[ a-zA-Z0-9:]*:Eleves" />

      <regex .../>
      ...
 </obliged>
</visibility>

In this element, you define 3 groups of visibility;

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• group : user is in the portal group referenced by attribute name, in the example : user in in group "local.0.0" - see "portlet.xml" section.
• regular : user check regular, in the example : user value of portal attribute "sn" is "user" - see "portlet.xml" section.regular
• regex : user check a java regular expression from a portal user attribute, in the example : user value of portal attribute "sn" is "userisMemberOf" is matching the pattern corresponding of all members of a group when the name contains these characters "[ a-zA-Z0-9:]" 0 or n times and when the name finish by ":Eleves" - see "portlet.xml" section.

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