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Diff for /loncom/localize/lonlocal.pm between versions 1.50 and 1.58

version 1.50, 2008/09/19 12:31:06 version 1.58, 2009/05/04 21:44:00
Line 173  require Exporter; Line 173  require Exporter;
 our @ISA = qw (Exporter);  our @ISA = qw (Exporter);
 our @EXPORT = qw(mt mtn ns mt_user);  our @EXPORT = qw(mt mtn ns mt_user);
   
   my %mtcache=();
   
 # ========================================================= The language handle  # ========================================================= The language handle
   
 use vars qw($lh);  use vars qw($lh $current_language);
   
 # ===================================================== The "MakeText" function  # ===================================================== The "MakeText" function
   
Line 191  sub mt (@) { Line 193  sub mt (@) {
                 return $_[0];                  return $_[0];
             }              }
         } else {          } else {
             return $lh->maketext(@_);              if ($#_>0) { return $lh->maketext(@_); }
               if ($mtcache{$current_language.':'.$_[0]}) {
                  return $mtcache{$current_language.':'.$_[0]};
               }
               my $translation=$lh->maketext(@_);
               $mtcache{$current_language.':'.$_[0]}=$translation;
               return $translation; 
         }          }
     } else {      } else {
  if (wantarray) {   if (wantarray) {
Line 233  sub current_language { Line 241  sub current_language {
     return 'en';      return 'en';
 }  }
   
   sub preferred_languages {
       my @languages=();
       if (($Apache::lonnet::env{'request.role.adv'}) && ($Apache::lonnet::env{'form.languages'})) {
           @languages=(@languages,split(/\s*(\,|\;|\:)\s*/,$Apache::lonnet::env{'form.languages'}));
       }
       if ($Apache::lonnet::env{'course.'.$Apache::lonnet::env{'request.course.id'}.'.languages'}) {
           @languages=(@languages,split(/\s*(\,|\;|\:)\s*/,
                    $Apache::lonnet::env{'course.'.$Apache::lonnet::env{'request.course.id'}.'.languages'}));
       }
   
       if ($Apache::lonnet::env{'environment.languages'}) {
           @languages=(@languages,
                       split(/\s*(\,|\;|\:)\s*/,$Apache::lonnet::env{'environment.languages'}));
       }
       my $browser=$ENV{'HTTP_ACCEPT_LANGUAGE'};
       if ($browser) {
           my @browser =
               map { (split(/\s*;\s*/,$_))[0] } (split(/\s*,\s*/,$browser));
           push(@languages,@browser);
       }
   
       foreach my $domtype ($Apache::lonnet::env{'user.domain'},$Apache::lonnet::env{'request.role.domain'},
                            $Apache::lonnet::perlvar{'lonDefDomain'}) {
           if ($domtype ne '') {
               my %domdefs = &Apache::lonnet::get_domain_defaults($domtype);
               if ($domdefs{'lang_def'} ne '') {
                   push(@languages,$domdefs{'lang_def'});
               }
           }
       }
       return &get_genlanguages(@languages);
   }
   
   sub get_genlanguages {
       my (@languages) = @_;
   # turn "en-ca" into "en-ca,en"
       my @genlanguages;
       foreach my $lang (@languages) {
           unless ($lang=~/\w/) { next; }
           push(@genlanguages,$lang);
           if ($lang=~/(\-|\_)/) {
               push(@genlanguages,(split(/(\-|\_)/,$lang))[0]);
           }
       }
       #uniqueify the languages list
       my %count;
       @genlanguages = map { $count{$_}++ == 0 ? $_ : () } @genlanguages;
       return @genlanguages;
   }
   
 # ============================================================== What encoding?  # ============================================================== What encoding?
   
 sub current_encoding {  sub current_encoding {
     my $default='UTF-8';      my $default='UTF-8';
     if ($Apache::lonnet::env{'browser.os'} eq 'win' &&   # UTF-8 character encoding needed for the whole LON-CAPA system
  $Apache::lonnet::env{'browser.type'} eq 'explorer') {  # (interface language and homework problem content)
         $default='ISO-8859-1';  # See Bugzilla 5702 vs. 2189 and 4067
     }  #    if ($Apache::lonnet::env{'browser.os'} eq 'win' && 
   # $Apache::lonnet::env{'browser.type'} eq 'explorer') {
   #        $default='ISO-8859-1';
   #    }
     if ($lh) {      if ($lh) {
  my $enc=$lh->maketext('char_encoding');   my $enc=$lh->maketext('char_encoding');
  return ($enc eq 'char_encoding'?$default:$enc);   return ($enc eq 'char_encoding'?$default:$enc);
Line 279  sub get_language_handle { Line 340  sub get_language_handle {
  my $headers=$r->headers_in;   my $headers=$r->headers_in;
  $ENV{'HTTP_ACCEPT_LANGUAGE'}=$headers->{'Accept-language'};   $ENV{'HTTP_ACCEPT_LANGUAGE'}=$headers->{'Accept-language'};
     }      }
     my @languages=&Apache::loncommon::preferred_languages;      my @languages=&preferred_languages();
     $ENV{'HTTP_ACCEPT_LANGUAGE'}='';      $ENV{'HTTP_ACCEPT_LANGUAGE'}='';
     $lh=Apache::localize->get_handle(@languages);      $lh=Apache::localize->get_handle(@languages);
       $current_language=&current_language();
     if ($r) {      if ($r) {
  $r->content_languages([&current_language()]);   $r->content_languages([&current_language()]);
     }      }
Line 290  sub get_language_handle { Line 352  sub get_language_handle {
   
 # ========================================================== Localize localtime  # ========================================================== Localize localtime
 sub gettimezone {  sub gettimezone {
     my $timezone;       my ($timezone) = @_;
     if ($Apache::lonnet::env{'course.'.$Apache::lonnet::env{'request.course.id'}.'.timezone'}) {      if ($timezone ne '') {
         $timezone = $Apache::lonnet::env{'course.'.$Apache::lonnet::env{'request.course.id'}.'.timezone'};              if (!DateTime::TimeZone->is_valid_name($timezone)) {
     } elsif ($Apache::lonnet::env{'request.course.id'} ne '') {              $timezone = 'local';
         my $cdom = $Apache::lonnet::env{'course.'.$Apache::lonnet::env{'request.course.id'}.'.domain'};          }
         if ($cdom ne '') {          return $timezone;
             my %domdefaults = &Apache::lonnet::get_domain_defaults($cdom);      }
             if ($domdefaults{'timezone_def'} ne '') {      my $cid = $Apache::lonnet::env{'request.course.id'};  
                 $timezone = $domdefaults{'timezone_def'};      if ($cid ne '') {
           if ($Apache::lonnet::env{'course.'.$cid.'.timezone'}) {
               $timezone = $Apache::lonnet::env{'course.'.$cid.'.timezone'};    
           } else {
               my $cdom = $Apache::lonnet::env{'course.'.$cid.'.domain'};
               if ($cdom ne '') {
                   my %domdefaults = &Apache::lonnet::get_domain_defaults($cdom);
                   if ($domdefaults{'timezone_def'} ne '') {
                       $timezone = $domdefaults{'timezone_def'};
                   }
             }              }
         }          }
     } elsif ($Apache::lonnet::env{'request.role.domain'} ne '') {      } elsif ($Apache::lonnet::env{'request.role.domain'} ne '') {
Line 322  sub gettimezone { Line 393  sub gettimezone {
     return 'local';      return 'local';
 }  }
   
   our $timezone_local;
   
 sub locallocaltime {  sub locallocaltime {
     my $thistime=shift;      my ($thistime,$timezone,$datetime) = @_;
   
     if (!defined($thistime) || $thistime eq '') {      if (!defined($thistime) || $thistime eq '') {
  return &mt('Never');   return &mt('Never');
     }      }
Line 336  sub locallocaltime { Line 410  sub locallocaltime {
         return &mt('Never');          return &mt('Never');
     }      }
   
     my $dt = DateTime->from_epoch(epoch => $thistime)     my $dt;
                      ->set_time_zone(&gettimezone());     my $convert_time;
   
      #### START # Speed up if this function is called often #### 
      
      # Is a $datetime parameter set?
      if(defined($datetime)) {
    # Check for an instance of a DateTime object
       if(!(defined $$datetime)) {
    # No object, create one
    $$datetime = DateTime->from_epoch(epoch => $thistime)
                            ->set_time_zone(&gettimezone($timezone));
    $dt = $$datetime;
      } else {
    # If the return-value is "local", we have to convert it for DateTime
   
    # Converts the "local"-String only once
    if(!defined($timezone_local))
    {
    $timezone_local = DateTime::TimeZone->new( name => gettimezone('local'))->name();
    }
   
    my $timezone_now;
   
    if(gettimezone($timezone) == 'local')
    {
    $timezone_now = $timezone_local;
    } else {
    $timezone_now = gettimezone($timezone);
    }
   
    # Has the timezone changed?
    if($timezone_now eq $$datetime->time_zone_short_name() ||
      $timezone_now eq $$datetime->time_zone_long_name())
    {
    # There is already an object (dereference)
    $dt = $$datetime;
   
    # We need this as temporary value
    $convert_time = DateTime->from_epoch( epoch => $thistime );
                                          #->set_time_zone('floating');
    
    # Preventing a set_time_zone call (time consuming)
    # Using old instance of DateTime with timezone
    $dt->set( year => $convert_time->year(),
     month => $convert_time->month(),
     day => $convert_time->day(),
     hour => $convert_time->hour(),
     minute => $convert_time->minute(),
     second => $convert_time->second() );
       } else {
    # The timezone has changed since last time
    $$datetime = DateTime->from_epoch(epoch => $thistime)
                             ->set_time_zone(&gettimezone($timezone));
    $dt = $$datetime;
    } 
    }
      } else {
    # There is no $datetime parameter
    $dt = DateTime->from_epoch(epoch => $thistime)
                         ->set_time_zone(&gettimezone($timezone));
      }
      #### END # Speed up if this function is called often ####
   
     if ((&current_language=~/^en/) || (!$lh)) {      if ((&current_language=~/^en/) || (!$lh)) {
   
  return $dt->strftime("%a %b %e %I:%M:%S %P %Y (%Z)");   return $dt->strftime("%a %b %e %I:%M:%S %P %Y (%Z)");
Line 410  sub getdatelocale { Line 546  sub getdatelocale {
     return $locale_obj;      return $locale_obj;
 }  }
   
   =pod 
   
   =item * normalize_string
   
   Normalize string (reduce fragility in the lexicon files)
   
 # ==================== Normalize string (reduce fragility in the lexicon files)  This normalizes a string to reduce fragility in the lexicon files of
   huge messages (such as are used by the helper), and allow useful
   formatting: reduce all consecutive whitespace to a single space,
   and remove all HTML
   
   =cut
   
 # This normalizes a string to reduce fragility in the lexicon files of  
 # huge messages (such as are used by the helper), and allow useful  
 # formatting: reduce all consecutive whitespace to a single space,  
 # and remove all HTML  
 sub normalize_string {  sub normalize_string {
     my $s = shift;      my $s = shift;
     $s =~ s/\s+/ /g;      $s =~ s/\s+/ /g;
Line 427  sub normalize_string { Line 569  sub normalize_string {
     return $s;      return $s;
 }  }
   
 # alias for normalize_string; recommend using it only in the lexicon  =pod 
   
   =item * ns
   
   alias for normalize_string; recommend using it only in the lexicon
   
   =cut
   
 sub ns {  sub ns {
     return normalize_string(@_);      return normalize_string(@_);
 }  }
   
 # mtn: call the mt function and the normalization function easily.  =pod
 # Returns original non-normalized string if there was no translation  
   =item * mtn
   
   mtn: call the mt function and the normalization function easily.
   Returns original non-normalized string if there was no translation
   
   =cut
   
 sub mtn (@) {  sub mtn (@) {
     my @args = @_; # don't want to modify caller's string; if we      my @args = @_; # don't want to modify caller's string; if we
    # didn't care about that we could set $_[0]     # didn't care about that we could set $_[0]
Removed from v.1.50  
changed lines
  Added in v.1.58

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