--- loncom/localize/lonlocal.pm 2009/09/14 22:32:09 1.50.4.1 +++ loncom/localize/lonlocal.pm 2010/12/06 00:35:19 1.60.4.2 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # Localization routines # -# $Id: lonlocal.pm,v 1.50.4.1 2009/09/14 22:32:09 raeburn Exp $ +# $Id: lonlocal.pm,v 1.60.4.2 2010/12/06 00:35:19 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -173,9 +173,11 @@ require Exporter; our @ISA = qw (Exporter); our @EXPORT = qw(mt mtn ns mt_user); +my %mtcache=(); + # ========================================================= The language handle -use vars qw($lh); +use vars qw($lh $current_language); # ===================================================== The "MakeText" function @@ -191,7 +193,13 @@ sub mt (@) { return $_[0]; } } 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 { if (wantarray) { @@ -234,6 +242,17 @@ sub current_language { } sub preferred_languages { + my $defdom = &Apache::lonnet::default_login_domain(); + foreach my $domtype ($Apache::lonnet::env{'user.domain'},$Apache::lonnet::env{'request.role.domain'},$defdom) { + next if ($domtype eq ''); + if ($domtype =~ /^\w+ci/) { + return ($domtype); + } elsif ($domtype =~ /^(\w+c)itest$/) { + return ($1.'t'); + } else { + return ('gci'); + } + } my @languages=(); if (($Apache::lonnet::env{'request.role.adv'}) && ($Apache::lonnet::env{'form.languages'})) { @languages=(@languages,split(/\s*(\,|\;|\:)\s*/,$Apache::lonnet::env{'form.languages'})); @@ -254,8 +273,7 @@ sub preferred_languages { push(@languages,@browser); } - foreach my $domtype ($Apache::lonnet::env{'user.domain'},$Apache::lonnet::env{'request.role.domain'}, - $Apache::lonnet::perlvar{'lonDefDomain'}) { + foreach my $domtype ($Apache::lonnet::env{'user.domain'},$Apache::lonnet::env{'request.role.domain'},$defdom) { if ($domtype ne '') { my %domdefs = &Apache::lonnet::get_domain_defaults($domtype); if ($domdefs{'lang_def'} ne '') { @@ -287,10 +305,13 @@ sub get_genlanguages { sub current_encoding { my $default='UTF-8'; - if ($Apache::lonnet::env{'browser.os'} eq 'win' && - $Apache::lonnet::env{'browser.type'} eq 'explorer') { - $default='ISO-8859-1'; - } +# UTF-8 character encoding needed for the whole LON-CAPA system +# (interface language and homework problem content) +# See Bugzilla 5702 vs. 2189 and 4067 +# if ($Apache::lonnet::env{'browser.os'} eq 'win' && +# $Apache::lonnet::env{'browser.type'} eq 'explorer') { +# $default='ISO-8859-1'; +# } if ($lh) { my $enc=$lh->maketext('char_encoding'); return ($enc eq 'char_encoding'?$default:$enc); @@ -332,6 +353,7 @@ sub get_language_handle { my @languages=&preferred_languages(); $ENV{'HTTP_ACCEPT_LANGUAGE'}=''; $lh=Apache::localize->get_handle(@languages); + $current_language=¤t_language(); if ($r) { $r->content_languages([¤t_language()]); } @@ -347,10 +369,10 @@ sub gettimezone { } return $timezone; } - my $cid = $Apache::lonnet::env{'request.course.id'}; + my $cid = $Apache::lonnet::env{'request.course.id'}; if ($cid ne '') { if ($Apache::lonnet::env{'course.'.$cid.'.timezone'}) { - $timezone = $Apache::lonnet::env{'course.'.$cid.'.timezone'}; + $timezone = $Apache::lonnet::env{'course.'.$cid.'.timezone'}; } else { my $cdom = $Apache::lonnet::env{'course.'.$cid.'.domain'}; if ($cdom ne '') { @@ -383,6 +405,7 @@ sub gettimezone { sub locallocaltime { my ($thistime,$timezone) = @_; + if (!defined($thistime) || $thistime eq '') { return &mt('Never'); } @@ -396,7 +419,16 @@ sub locallocaltime { } my $dt = DateTime->from_epoch(epoch => $thistime) - ->set_time_zone(&gettimezone($timezone)); + ->set_time_zone(gettimezone($timezone)); + + # TimeZone tries to determine the 'local' timezone from $ENV{TZ} if this + # fails it searches through various system files. Under certain + # circumstances this is an extremly expensive operation. + # So after the first run we store the timezone in $ENV{TZ} to significantly + # speed up future lookups. + $ENV{TZ} = $dt->time_zone()->name() + if (! $ENV{TZ} && gettimezone($timezone) eq 'local'); + if ((¤t_language=~/^en/) || (!$lh)) { return $dt->strftime("%a %b %e %I:%M:%S %P %Y (%Z)"); @@ -469,13 +501,19 @@ sub getdatelocale { return $locale_obj; } +=pod + +=item * normalize_string + +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 -# ==================== Normalize string (reduce fragility in the lexicon files) +=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 { my $s = shift; $s =~ s/\s+/ /g; @@ -486,13 +524,27 @@ sub normalize_string { 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 { return normalize_string(@_); } -# mtn: call the mt function and the normalization function easily. -# Returns original non-normalized string if there was no translation +=pod + +=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 (@) { my @args = @_; # don't want to modify caller's string; if we # didn't care about that we could set $_[0]