loncom/interface/loncommon.pm - diff

Return to loncommon.pm CVS log

Up to [LON-CAPA] / loncom / interface

-version 1.581, 2007/09/10 23:03:38
+version 1.582, 2007/09/11 20:36:30
  Line 2563  sub preferred_languages {
      return @genlanguages;
  }
+ sub languages {
+     my ($possible_langs) = @_;
+     my @preferred_langs = &preferred_languages();
+     if (!ref($possible_langs)) {
+ 	if( wantarray ) {
+ 	    return @preferred_langs;
+ 	} else {
+ 	    return $preferred_langs[0];
+ 	}
+     }
+     my %possibilities = map { $_ => 1 } (@$possible_langs);
+     my @preferred_possibilities;
+     foreach my $preferred_lang (@preferred_langs) {
+ 	if (exists($possibilities{$preferred_lang})) {
+ 	    push(@preferred_possibilities, $preferred_lang);
+ 	}
+     }
+     if( wantarray ) {
+ 	return @preferred_possibilities;
+     }
+     return $preferred_possibilities[0];
+ }
  ###############################################################
  ##               Student Answer Attempts                     ##
  ###############################################################