--- loncom/interface/lonuserutils.pm	2008/09/12 00:55:37	1.66
+++ loncom/interface/lonuserutils.pm	2009/02/17 10:12:37	1.80
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Utility functions for managing LON-CAPA user accounts
 #
-# $Id: lonuserutils.pm,v 1.66 2008/09/12 00:55:37 raeburn Exp $
+# $Id: lonuserutils.pm,v 1.80 2009/02/17 10:12:37 weissno Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -329,7 +329,7 @@ sub print_upload_manager_header {
                                 $env{'request.role.domain'},$context,
                                 $groupslist);
     my $checked=(($env{'form.noFirstLine'})?' checked="checked" ':'');
-    $r->print(&mt('Total number of records found in file: <b>[_1]</b>.',$distotal).
+    $r->print(&mt('Total number of records found in file: [_1]','<b>'.$distotal.'</b>').
               "<br />\n");
     $r->print('<div class="LC_left_float"><h3>'.
               &mt('Identify fields in uploaded list')."</h3>\n");
@@ -341,11 +341,11 @@ sub print_upload_manager_header {
               &hidden_input('fileupload',$env{'form.fileupload'}).
               &hidden_input('upfiletype',$env{'form.upfiletype'}).
               &hidden_input('upfile_associate',$env{'form.upfile_associate'}));
+    $r->print('<br /><label><input type="checkbox" name="noFirstLine"'.$checked.'/>'.
+              &mt('Ignore First Line').'</label><br />');
     $r->print('<br /><input type="button" value="'.&mt('Reverse Association').'" '.
               'name="Reverse Association" '.
               'onClick="javascript:this.form.associate.value=\'Reverse Association\';submit(this.form);" />');
-    $r->print('<label><input type="checkbox" name="noFirstLine"'.$checked.'/>'.
-              &mt('Ignore First Line').'</label>');
     $r->print("<br /><br />\n".
               '<script type="text/javascript" language="Javascript">'."\n".
               $javascript."\n".$javascript_validations.'</script>');
@@ -403,7 +403,7 @@ sub javascript_validations {
          name     => 'The optional name field was not specified.',
          snum     => 'The optional ID number field was not specified.',
          section  => 'The optional section field was not specified.',
-         email    => 'The optional email address field was not specified.',
+         email    => 'The optional e-mail address field was not specified.',
          role     => 'The optional role field was not specified.',
          domain   => 'The optional domain field was not specified.',
          continue => 'Continue adding users?',
@@ -743,7 +743,7 @@ sub print_upload_manager_footer {
         $Str .= '<p>'.&mt('Change authentication for existing users in domain "[_1]" to these settings?',$defdom).'&nbsp;<span class="LC_nobreak"><label><input type="radio" name="changeauth" value="No" checked="checked" />'.&mt('No').'</label>&nbsp;&nbsp;<label><input type="radio" name="changeauth" value="Yes" />'.&mt('Yes').'</label></span></p>'; 
     } else {
         $Str .= "<p>\n".
-            &mt('Note: this will not take effect if the user already exists').
+            &mt('Note: This will not take effect if the user already exists.').
             &Apache::loncommon::help_open_topic('Auth_Options').
             "</p>\n";
     }
@@ -797,13 +797,17 @@ sub print_upload_manager_footer {
     if ($context eq 'course' || $context eq 'domain') {
         $Str .= &forceid_change($context);
     }
-    $Str .= '</div><div class="LC_clear_float_footer"><br /><input type="button"'.
-              'onClick="javascript:verify(this.form,this.form.csec)" '.
-        'value="'.&mt('Update Users').'" />'."<br />\n";
-    if ($context eq 'course') {
-        $Str .= &mt('Note: for large courses, this operation may be time consuming');
-    }
     $Str .= '</div>';
+    $Str .= '<div class="LC_clear_float_footer">';
+    if ($context eq 'course') {
+        $Str .= '<div class="LC_info">'
+               .&mt('Note: For large courses, this operation may be time consuming.')
+               .'</div>';
+    }
+    $Str .= '<input type="button"'
+           .'onClick="javascript:verify(this.form,this.form.csec)" '
+           .'value="'.&mt('Update Users').'" />'."\n"
+           .'</div>';
     $r->print($Str);
     return;
 }
@@ -1009,7 +1013,7 @@ sub date_setting_table {
     }
     my $perpetual = '<span class="LC_nobreak"><label><input type="checkbox" name="no_end_date"';
     if (defined($endtime) && $endtime == 0) {
-        $perpetual .= ' checked';
+        $perpetual .= ' checked="checked"';
     }
     $perpetual.= ' /> '.&mt('no ending date').'</label></span>';
     if ($mode eq 'create_enrolldates') {
@@ -1295,9 +1299,13 @@ sub print_userlist {
             $output_selector .= "\n".$option;
         }
         $output_selector .= '</select>';
-        $r->print('<label>'.&mt('Output Format: [_1]',$output_selector).'</label>'.('&nbsp;'x3));
-    }
-    $r->print('<label>'.&mt('User Status: [_1]',$status_select).'</label>'.('&nbsp;'x3)."\n");
+        $r->print('<label><span class="LC_nobreak">'
+                 .&mt('Output Format: [_1]',$output_selector)
+                 .'</span></label>'.('&nbsp;'x3));
+    }
+    $r->print('<label><span class="LC_nobreak">'
+             .&mt('User Status: [_1]',$status_select)
+             .'</span></label>'.('&nbsp;'x3)."\n");
     my $roleselected = '';
     if ($env{'form.showrole'} eq 'Any') {
        $roleselected = ' selected="selected" '; 
@@ -1308,6 +1316,12 @@ sub print_userlist {
         ($cnum,$cdom) = &get_course_identity();
         $r->print(&section_group_filter($cnum,$cdom));
     }
+    if ($env{'form.phase'} eq '') {
+        $r->print('<br /><br />'.&list_submit_button(&mt('Display List of Users')).
+                  "\n</p>\n".
+                  '<input type="hidden" name="phase" value="" /></form>');
+        return;
+    }
     if (!(($context eq 'domain') && ($env{'form.roletype'} eq 'course'))) {
         $r->print('&nbsp;'.&list_submit_button(&mt('Update Display')).
                   "\n</p>\n");
@@ -1473,7 +1487,10 @@ sub print_userlist {
                                $permission,$env{'form.Status'},\%userlist,$keylist);
         }
         if (!$usercount) {
-            $r->print('<br />'.&mt('There are no users matching the search criteria.')); 
+            $r->print('<br /><span class="LC_warning">'
+                     .&mt('There are no users matching the search criteria.')
+                     .'</span>'
+            ); 
         }
     }
     $r->print('<input type="hidden" name="phase" value="'.
@@ -1490,7 +1507,9 @@ sub role_filter {
     my ($role_select);
     if ($context eq 'domain') {
         $role_select = &domain_roles_select();
-        $output = '<label>'.&mt('Role Type: [_1]',$role_select).'</label>';
+        $output = '<label><span class="LC_nobreak">'
+                 .&mt('Role Type: [_1]',$role_select)
+                 .'</span></label>';
     } else {
         $role_select = '<select name="showrole">'."\n".
                        '<option value="Any" '.$roleselected.'>'.
@@ -1510,7 +1529,9 @@ sub role_filter {
             $role_select .= '<option value="'.$role.'"'.$roleselected.'>'.$plrole.'</option>';
         }
         $role_select .= '</select>';
-        $output = '<label>'.&mt('Role: [_1]',$role_select).'</label>';
+        $output = '<label><span class="LC_nobreak">'
+                 .&mt('Role: [_1]',$role_select)
+                 .'</span></label>';
     }
     return $output;
 }
@@ -1893,15 +1914,15 @@ sub aggregate_user_info {
 sub process_date_info {
     my ($userdata) = @_;
     my $now = time;
-    $userdata->{'status'} = 'Active';
+    $userdata->{'status'} = &mt('Active');
     if ($userdata->{'start'} > 0) {
         if ($now < $userdata->{'start'}) {
-            $userdata->{'status'} = 'Future';
+            $userdata->{'status'} = &mt('Future');
         }
     }
     if ($userdata->{'end'} > 0) {
         if ($now > $userdata->{'end'}) {
-            $userdata->{'status'} = 'Expired';
+            $userdata->{'status'} = &mt('Expired');
         }
     }
     return;
@@ -2035,7 +2056,7 @@ END
                        'status'     => "status",
                        'role'       => "role",
                        'type'       => "enroll type/action",
-                       'email'      => "email address",
+                       'email'      => "e-mail address",
                        'photo'      => "photo",
                        'extent'     => "extent",
                        'pr'         => "Proceed",
@@ -2043,9 +2064,10 @@ END
                        'ua'         => "uncheck all",
                        'ac'         => "Action to take for selected users",
                        'link'       => "Behavior of clickable username link for each user",
-                       'aboutme'    => "Display a user's personal page",
+                       'aboutme'    => "Display a user's personal homepage",
                        'owin'       => "Open in a new window",
                        'modify'     => "Modify a user's information",
+                       'clicker'    => "Clicker-ID",
                       );
     if ($context eq 'domain' && $env{'form.roletype'} eq 'course') {
         $lt{'extent'} = &mt('Course(s): description, section(s), status');
@@ -2243,18 +2265,20 @@ END
                        time.'_'.rand(1000000000).'.csv';
         unless ($CSVfile = Apache::File->new('>/home/httpd'.$CSVfilename)) {
             $r->log_error("Couldn't open $CSVfilename for output $!");
-            $r->print(&mt('Problems occurred in writing the csv file. '
+            $r->print(&mt('Problems occurred in writing the CSV file. '
                          .'This error has been logged. '
                          .'Please alert your LON-CAPA administrator.'));
             $CSVfile = undef;
         }
         #
+        push @cols,'clicker';
         # Write headers and data to file
         print $CSVfile '"'.$results_description.'"'."\n"; 
         print $CSVfile '"'.join('","',map {
             &Apache::loncommon::csv_translate($lt{$_})
-            } (@cols)).'"'."\n";
+            } (@cols))."\"\n";
     } elsif ($mode eq 'excel') {
+        push @cols,'clicker';
         # Create the excel spreadsheet
         ($excel_workbook,$excel_filename,$format) =
             &Apache::loncommon::create_workbook($r);
@@ -2263,6 +2287,7 @@ END
         $excel_sheet->write($row++,0,$results_description,$format->{'h2'});
         #
         my @colnames = map {$lt{$_}} (@cols);
+
         $excel_sheet->write($row++,0,\@colnames,$format->{'bold'});
     }
 
@@ -2414,7 +2439,10 @@ END
         foreach my $item (@{$keylist}) {
             $in{$item} = $sdata->[$index{$item}];
         }
-        my $role = $in{'role'};
+        my $clickers = (&Apache::lonnet::userenvironment($in{'domain'},$in{'username'},'clickers'))[1];
+        if ($clickers!~/\w/) { $clickers='-'; }
+        $in{'clicker'} = $clickers; 
+	my $role = $in{'role'};
         $in{'role'}=&Apache::lonnet::plaintext($sdata->[$index{'role'}]); 
         if (! defined($in{'start'}) || $in{'start'} == 0) {
             $in{'start'} = &mt('none');
@@ -2435,7 +2463,7 @@ END
                     $cellentry = '<b>'.&mt('auto').'</b>&nbsp;<label><input type="checkbox" name="chgauto" value="'.$in{'username'}.':'.$in{'domain'}.'" />&nbsp;Change</label>';
                     $autocount ++;
                 } else {
-                    $cellentry = '<table border="0" cellspacing="0"><tr><td rowspan="2"><b>'.&mt('manual').'</b></td><td><nobr><label><input type="checkbox" name="chgmanual" value="'.$in{'username'}.':'.$in{'domain'}.'" />&nbsp;Change</label></nobr></td></tr><tr><td><nobr>';
+                    $cellentry = '<table border="0" cellspacing="0"><tr><td rowspan="2"><b>'.&mt('manual').'</b></td><td><span class="LC_nobreak"><label><input type="checkbox" name="chgmanual" value="'.$in{'username'}.':'.$in{'domain'}.'" />&nbsp;Change</label></span></td></tr><tr><td><span class="LC_nobreak">';
                     $manualcount ++;
                     if ($in{'lockedtype'}) {
                         $cellentry .= '<label><input type="checkbox" name="unlockchg" value="'.$in{'username'}.':'.$in{'domain'}.'" />&nbsp;'.&mt('Unlock').'</label>';
@@ -2444,7 +2472,7 @@ END
                         $cellentry .= '<label><input type="checkbox" name="lockchg" value="'.$in{'username'}.':'.$in{'domain'}.'" />&nbsp;'.&mt('Lock').'</label>';
                         $lockcount ++;
                     }
-                    $cellentry .= '</nobr></td></tr></table>';
+                    $cellentry .= '</span></td></tr></table>';
                 }
                 $r->print("<td>$cellentry</td>\n");
             } else {
@@ -2534,7 +2562,7 @@ END
             foreach my $item (@cols) {
                 push @line,&Apache::loncommon::csv_translate($in{$item});
             }
-            print $CSVfile '"'.join('","',@line).'"'."\n";
+            print $CSVfile '"'.join('","',@line)."\"\n";
         } elsif ($mode eq 'excel') {
             my $col = 0;
             foreach my $item (@cols) {
@@ -2557,12 +2585,10 @@ END
             $r->print(&Apache::loncommon::end_data_table().'<br />');
     } elsif ($mode eq 'excel') {
         $excel_workbook->close();
-        $r->print('<p><a href="'.$excel_filename.'">'.
-                  &mt('Your Excel spreadsheet').'</a> '.&mt('is ready for download').'.</p>'."\n");
+	$r->print(&mt('[_1]Your Excel spreadsheet[_2] is ready for download.', '<p><a href="'.$excel_filename.'">','</a>')."</p>\n");
     } elsif ($mode eq 'csv') {
         close($CSVfile);
-        $r->print('<p><a href="'.$CSVfilename.'">'.
-                  &mt('Your CSV file').'</a> '.&mt('is ready for download').'.</p>'."\n");
+	$r->print(&mt('[_1]Your CSV file[_2] is ready for download.', '<p><a href="'.$CSVfilename.'">','</a>')."</p>\n");
         $r->rflush();
     }
     if ($mode eq 'autoenroll') {
@@ -3020,7 +3046,7 @@ sub results_header_row {
     }
     if ($context eq 'course') {
         if ($mode eq 'csv' || $mode eq 'excel') {
-            $description = &mt('Course - ').$env{'course.'.$env{'request.course.id'}.'.description'}.': ';
+            $description = &mt('Course - [_1]:',$env{'course.'.$env{'request.course.id'}.'.description'}).' ';
         }
         if ($statusmode eq 'Expired') {
             $description .= &mt('Users in course with expired [_1] roles',$showfilter);
@@ -3079,8 +3105,11 @@ sub results_header_row {
         } 
     } elsif ($context eq 'author') {
         $description = 
-            &mt('Author space for <span class="LC_cusr_emph">[_1]</span>',
-        &Apache::loncommon::plainname($env{'user.name'},$env{'user.domain'})).':&nbsp;&nbsp;';
+            &mt('Author space for [_1]'
+                ,'<span class="LC_cusr_emph">'
+                .&Apache::loncommon::plainname($env{'user.name'},$env{'user.domain'})
+                .'</span>')
+            .':&nbsp;&nbsp;';
         if ($statusmode eq 'Expired') {
             $description .= &mt('Co-authors with expired [_1] roles',$showfilter);
         } elsif ($statusmode eq 'Future') {
@@ -3096,7 +3125,7 @@ sub results_header_row {
         }
     } elsif ($context eq 'domain') {
         my $domdesc = &Apache::lonnet::domain($env{'request.role.domain'},'description');
-        $description = &mt('Domain - ').$domdesc.': ';
+        $description = &mt('Domain - [_1]:',$domdesc).' ';
         if ($env{'form.roletype'} eq 'domain') {
             if ($statusmode eq 'Expired') {
                 $description .= &mt('Users in domain with expired [_1] roles',$showfilter);
@@ -3351,17 +3380,18 @@ sub print_first_users_upload_form {
     $str .= '<input type="hidden"   name="state"  value="got_file" />';
     $str .= "<h3>".&mt('Upload a file containing information about users')."</h3>\n";
     $str .= &Apache::loncommon::upfile_select_html();
-    $str .= "<p>\n";
-    $str .= '<input type="submit" name="fileupload" value="'.
-        &mt('Upload file of users').'">'."\n";
-    $str .= '<label><input type="checkbox" name="noFirstLine" /> '.
-        &mt('Ignore First Line')."</label></p>\n";
+    $str .= '<p>';
     $str .= &Apache::loncommon::help_open_topic("Course_Create_Class_List",
                          &mt("How do I create a users list from a spreadsheet")).
                              "<br />\n";
     $str .= &Apache::loncommon::help_open_topic("Course_Convert_To_CSV",
-                           &mt("How do I create a CSV file from a spreadsheet")).
-                               "<br />\n";
+                           &mt("How do I create a CSV file from a spreadsheet"));
+    $str .= "</p>\n";
+    $str .= "<p>\n";
+    $str .= '<label><input type="checkbox" name="noFirstLine" /> '.
+        &mt('Ignore First Line')."</label></p>\n";
+    $str .= '<input type="submit" name="fileupload" value="'.
+        &mt('Go to next step').'">'."<br />\n";
     $str .= &Apache::loncommon::end_page();
     $r->print($str);
     return;
@@ -3612,15 +3642,14 @@ sub upfile_drop_add {
                 if ($entries{$fields{'username'}}
                     ne &LONCAPA::clean_username($entries{$fields{'username'}})) {
                     $r->print('<br />'.
-      &mt('<b>[_1]</b>: Unacceptable username for user [_2] [_3] [_4] [_5]',
-          $entries{$fields{'username'}},$fname,$mname,$lname,$gen).
-                              '</b>');
+      &mt('[_1]: Unacceptable username for user [_2] [_3] [_4] [_5]',
+          '<b>'.$entries{$fields{'username'}}.'</b>',$fname,$mname,$lname,$gen));
                     next;
                 } else {
-                    if ($entries{$fields{'dom'}} 
+                    if ($entries{$fields{'domain'}} 
                         ne &LONCAPA::clean_domain($entries{$fields{'domain'}})) {
                         $r->print('<br />'. '<b>'.$entries{$fields{'domain'}}.
-                                  '</b>: '.&mt('Unacceptable domain for user [_2] [_3] [_4] [_5]',$fname,$mname,$lname,$gen).'</b>');
+                                  '</b>: '.&mt('Unacceptable domain for user [_2] [_3] [_4] [_5]',$fname,$mname,$lname,$gen));
                         next;
                     }
                     my $username = $entries{$fields{'username'}};
@@ -3633,10 +3662,10 @@ sub upfile_drop_add {
                             $entries{$fields{'sec'}} =~ s/\W//g;
                             my $item = $entries{$fields{'sec'}};
                             if ($item eq "none" || $item eq 'all') {
-                                $r->print('<br />'.&mt('<b>[_1]</b>: Unable to enroll user [_2] [_3] [_4] [_5] in a section named "[_6]" - this is a reserved word.',$username,$fname,$mname,$lname,$gen,$item));
+                                $r->print('<br />'.&mt('[_1]: Unable to enroll user [_2] [_3] [_4] [_5] in a section named "[_6]" - this is a reserved word.','<b>'.$username.'</b>',$fname,$mname,$lname,$gen,$item));
                                 next;
                             } elsif (exists($curr_groups{$item})) {
-                                $r->print('<br />'.&mt('<b>[_1]</b>: Unable to enroll user [_2] [_3] [_4] [_5] in a section named "[_6]" - this is a course group.',$username,$fname,$mname,$lname,$gen,$item).' '.&mt('Section names and group names must be distinct.'));
+                                $r->print('<br />'.&mt('[_1]: Unable to enroll user [_2] [_3] [_4] [_5] in a section named "[_6]" - this is a course group.','<b>'.$username.'</b>',$fname,$mname,$lname,$gen,$item).' '.&mt('Section names and group names must be distinct.'));
                                 next;
                             } else {
                                 push(@secs,$item);
@@ -3648,7 +3677,7 @@ sub upfile_drop_add {
                         if (ref($userlist{$username.':'.$userdomain}) eq 'ARRAY') {
                             my $currsec = $userlist{$username.':'.$userdomain}[$secidx];
                             if ($currsec ne $env{'request.course.sec'}) {
-                                $r->print('<br />'.&mt('<b>[_1]</b>: Unable to enroll user [_2] [_3] [_4] [_5] in a section named "[_6]".',$username,$fname,$mname,$lname,$gen,$secs[0]).'<br />');
+                                $r->print('<br />'.&mt('[_1]: Unable to enroll user [_2] [_3] [_4] [_5] in a section named "[_6]".','<b>'.$username.'</b>',$fname,$mname,$lname,$gen,$secs[0]).'<br />');
                                 if ($currsec eq '') {
                                     $r->print(&mt('This user already has an active/future student role in the course, unaffiliated to any section.'));
 
@@ -3698,8 +3727,13 @@ sub upfile_drop_add {
                             }
                             if ($role eq '') {
                                 my $rolestr = join(', ',@permitted_roles);
-                                $r->print('<br />'.
-      &mt('<b>[_1]</b>: You do not have permission to add the requested role [_2] for the user.',$entries{$fields{'username'}},$entries{$fields{'role'}}).'<br />'.&mt('Allowable role(s) is/are: [_1].',$rolestr)."\n");
+                                $r->print('<br />'
+                                         .&mt('[_1]: You do not have permission to add the requested role [_2] for the user.'
+                                             ,'<b>'.$entries{$fields{'username'}}.'</b>'
+                                             ,$entries{$fields{'role'}})
+                                         .'<br />'
+                                         .&mt('Allowable role(s) is/are: [_1].',$rolestr)."\n"
+                                );
                                 next;
                             }
                         }
@@ -3859,15 +3893,15 @@ sub upfile_drop_add {
                     } else {
                         if ($context eq 'course') {
                             $r->print('<br />'. 
-      &mt('<b>[_1]</b>: Unable to enroll.  No password specified.',$username)
+      &mt('[_1]: Unable to enroll. No password specified.','<b>'.$username.'</b>')
                                      );
                         } elsif ($context eq 'author') {
                             $r->print('<br />'.
-      &mt('<b>[_1]</b>: Unable to add co-author.  No password specified.',$username)
+      &mt('[_1]: Unable to add co-author. No password specified.','<b>'.$username.'</b>')
                                      );
                         } else {
                             $r->print('<br />'.
-      &mt('<b>[_1]</b>: Unable to add user.  No password specified.',$username)
+      &mt('[_1]: Unable to add user. No password specified.','<b>'.$username.'</b>')
                                      );
                         }
                     }
@@ -3970,7 +4004,7 @@ sub user_change_result {
         if ($userresult =~ /^error:(.+)$/) {
             my $error = $1;
             $r->print('<br />'.
-                  &mt('<b>[_1]</b>:  Unable to add/modify: [_2]',$username.':'.$userdomain,$error));
+                  &mt('[_1]: Unable to add/modify: [_2]','<b>'.$username.':'.$userdomain.'</b>',$error));
         }
     } else {
         $counts->{'user'} ++;
@@ -3980,7 +4014,7 @@ sub user_change_result {
         if ($authresult =~ /^error:(.+)$/) {
             my $error = $1;
             $r->print('<br />'.
-                  &mt('<b>[_1]</b>:  Unable to modify authentication: [_2]',$username.':'.$userdomain,$error));
+                  &mt('[_1]: Unable to modify authentication: [_2]','<b>'.$username.':'.$userdomain.'</b>',$error));
         } 
     } else {
         $counts->{'auth'} ++;
@@ -3990,7 +4024,7 @@ sub user_change_result {
         if ($roleresult =~ /^error:(.+)$/) {
             my $error = $1;
             $r->print('<br />'.
-                  &mt('<b>[_1]</b>:  Unable to add role: [_2]',$username.':'.$userdomain,$error));
+                  &mt('[_1]: Unable to add role: [_2]','<b>'.$username.':'.$userdomain.'</b>',$error));
         }
     } else {
         $counts->{'role'} ++;
@@ -4260,7 +4294,7 @@ sub update_user_list {
     $r->print('<p><b>'.&mt("$result_text{'ok'}{$choice} role(s) for [quant,_1,user,users,no users].",$count).'</b></p>');
     if ($count > 0) {
         if ($choice eq 'revoke' || $choice eq 'drop') {
-            $r->print('<p>'.&mt('Re-enabling will re-activate data for the role.</p>'));
+            $r->print('<p>'.&mt('Re-enabling will re-activate data for the role.').'</p>');
         }
         # Flush the course logs so reverse user roles immediately updated
         &Apache::lonnet::flushcourselogs();