--- loncom/localize/lonlocal.pm 2003/09/23 02:19:09 1.12 +++ loncom/localize/lonlocal.pm 2009/01/05 16:55:04 1.50.2.2 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # Localization routines # -# $Id: lonlocal.pm,v 1.12 2003/09/23 02:19:09 albertel Exp $ +# $Id: lonlocal.pm,v 1.50.2.2 2009/01/05 16:55:04 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -144,11 +144,6 @@ like this: 'No purchase necessary. Illegal where not allowed.' => 'Es ist erlaubt, einfach zu verlieren, und das ist Ihre Schuld.' -The German translation lexicon is in pretty okay shape, but not -complete yet. Portuguese currently only covers the login screen. -Russian is purely experimental. Looks like UTF-8 is the way to encode -this, at least for latin/greek-based languages, but we still have to -learn a lot. Comments may be added with the # symbol, which outside of a string (the things with the apostrophe surrounding them, which are the @@ -167,14 +162,16 @@ package Apache::lonlocal; use strict; use Apache::localize; -use Apache::File; +use locale; +use POSIX qw(locale_h strftime); +use DateTime(); +use DateTime::TimeZone; +use DateTime::Locale; require Exporter; our @ISA = qw (Exporter); -our @EXPORT = qw(mt); - -my $reroute; +our @EXPORT = qw(mt mtn ns mt_user); # ========================================================= The language handle @@ -183,46 +180,132 @@ use vars qw($lh); # ===================================================== The "MakeText" function sub mt (@) { - unless ($ENV{'environment.translator'}) { - if ($lh) { - return $lh->maketext(@_); - } else { - return @_; - } +# open(LOG,'>>/home/www/loncapa/loncom/localize/localize/newphrases.txt'); +# print LOG (@_[0]."\n"); +# close(LOG); + if ($lh) { + if ($_[0] eq '') { + if (wantarray) { + return @_; + } else { + return $_[0]; + } + } else { + return $lh->maketext(@_); + } } else { - if ($lh) { - my $trans=$lh->maketext(@_); - my $link='[['.$trans.']]'; - if ($ENV{'transreroute'}) { - $reroute.=$link; - return $trans; - } else { - return $link; - } - } else { + if (wantarray) { return @_; + } else { + return $_[0]; } } } +sub mt_user { + my ($user_lh,@what) = @_; + if ($user_lh) { + if ($what[0] eq '') { + if (wantarray) { + return @what; + } else { + return $what[0]; + } + } else { + return $user_lh->maketext(@what); + } + } else { + if (wantarray) { + return @what; + } else { + return $what[0]; + } + } +} + # ============================================================== What language? sub current_language { - my $lang=$lh->maketext('language_code'); - return ($lang eq 'language_code'?'en':$lang); + if ($lh) { + my $lang=$lh->maketext('language_code'); + return ($lang eq 'language_code'?'en':$lang); + } + 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? sub current_encoding { + my $default='UTF-8'; + if ($Apache::lonnet::env{'browser.os'} eq 'win' && + $Apache::lonnet::env{'browser.type'} eq 'explorer') { + $default='ISO-8859-1'; + } if ($lh) { my $enc=$lh->maketext('char_encoding'); - return ($enc eq 'char_encoding'?'':$enc); + return ($enc eq 'char_encoding'?$default:$enc); + } else { + return $default; + } +} + +# =============================================================== Which locale? +# Refer to locale -a +# +sub current_locale { + if ($lh) { + my $enc=$lh->maketext('lang_locale'); + return ($enc eq 'lang_locale'?'':$enc); } else { return undef; } @@ -237,43 +320,214 @@ sub texthash { } return %hash; } -# ======================================================== Re-route translation -sub clearreroutetrans { - &reroutetrans(); - $reroute=''; -} +# ========= Get a handle (do not invoke in vain, leave this to access handlers) -# ======================================================== Re-route translation +sub get_language_handle { + my $r=shift; + if ($r) { + my $headers=$r->headers_in; + $ENV{'HTTP_ACCEPT_LANGUAGE'}=$headers->{'Accept-language'}; + } + my @languages=&preferred_languages(); + $ENV{'HTTP_ACCEPT_LANGUAGE'}=''; + $lh=Apache::localize->get_handle(@languages); + if ($r) { + $r->content_languages([¤t_language()]); + } +### setlocale(LC_ALL,¤t_locale); +} -sub reroutetrans { - $ENV{'transreroute'}=1; +# ========================================================== Localize localtime +sub gettimezone { + my ($timezone) = @_; + if ($timezone ne '') { + if (!DateTime::TimeZone->is_valid_name($timezone)) { + $timezone = 'local'; + } + return $timezone; + } + 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'}; + } 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 '') { + my %uroledomdefs = + &Apache::lonnet::get_domain_defaults($Apache::lonnet::env{'request.role.domain'}); + if ($uroledomdefs{'timezone_def'} ne '') { + $timezone = $uroledomdefs{'timezone_def'}; + } + } elsif ($Apache::lonnet::env{'user.domain'} ne '') { + my %udomdefaults = + &Apache::lonnet::get_domain_defaults($Apache::lonnet::env{'user.domain'}); + if ($udomdefaults{'timezone_def'} ne '') { + $timezone = $udomdefaults{'timezone_def'}; + } + } + if ($timezone ne '') { + if (DateTime::TimeZone->is_valid_name($timezone)) { + return $timezone; + } + } + return 'local'; } -# ==================================================== End re-route translation -sub endreroutetrans { - $ENV{'transreroute'}=0; - if ($ENV{'environment.translator'}) { - return $reroute; +sub locallocaltime { + my ($thistime,$timezone) = @_; + if (!defined($thistime) || $thistime eq '') { + return &mt('Never'); + } + if (($thistime < 0) || ($thistime eq 'NaN')) { + &Apache::lonnet::logthis("Unexpected time (negative or NaN) '$thistime' passed to lonlocal::locallocaltime"); + return &mt('Never'); + } + if ($thistime !~ /^\d+$/) { + &Apache::lonnet::logthis("Unexpected non-numeric time '$thistime' passed to lonlocal::locallocaltime"); + return &mt('Never'); + } + + my $dt = DateTime->from_epoch(epoch => $thistime) + ->set_time_zone(&gettimezone($timezone)); + if ((¤t_language=~/^en/) || (!$lh)) { + + return $dt->strftime("%a %b %e %I:%M:%S %P %Y (%Z)"); } else { - return ''; + my $format=$lh->maketext('date_locale'); + if ($format eq 'date_locale') { + return $dt->strftime("%a %b %e %I:%M:%S %P %Y (%Z)"); + } + my $time_zone = $dt->time_zone_short_name(); + my $seconds = $dt->second(); + my $minutes = $dt->minute(); + my $twentyfour = $dt->hour(); + my $day = $dt->day_of_month(); + my $mon = $dt->month()-1; + my $year = $dt->year(); + my $wday = $dt->wday(); + if ($wday==7) { $wday=0; } + my $month =(split(/\,/,$lh->maketext('date_months')))[$mon]; + my $weekday=(split(/\,/,$lh->maketext('date_days')))[$wday]; + if ($seconds<10) { + $seconds='0'.$seconds; + } + if ($minutes<10) { + $minutes='0'.$minutes; + } + my $twelve=$twentyfour; + my $ampm; + if ($twelve>12) { + $twelve-=12; + $ampm=$lh->maketext('date_pm'); + } else { + $ampm=$lh->maketext('date_am'); + } + foreach ('seconds','minutes','twentyfour','twelve','day','year', + 'month','weekday','ampm') { + $format=~s/\$$_/eval('$'.$_)/gse; + } + return $format." ($time_zone)"; } } -# ========= Get a handle (do not invoke in vain, leave this to access handlers) - -sub get_language_handle { - my $r=shift; - $lh=Apache::localize->get_handle(&Apache::loncommon::preferred_languages); - if (&Apache::lonnet::mod_perl_version == 1) { - $r->content_languages([¤t_language()]); +sub getdatelocale { + my ($datelocale,$locale_obj); + if ($Apache::lonnet::env{'course.'.$Apache::lonnet::env{'request.course.id'}.'.datelocale'}) { + $datelocale = $Apache::lonnet::env{'course.'.$Apache::lonnet::env{'request.course.id'}.'.datelocale'}; + } elsif ($Apache::lonnet::env{'request.course.id'} ne '') { + my $cdom = $Apache::lonnet::env{'course.'.$Apache::lonnet::env{'request.course.id'}.'.domain'}; + if ($cdom ne '') { + my %domdefaults = &Apache::lonnet::get_domain_defaults($cdom); + if ($domdefaults{'datelocale_def'} ne '') { + $datelocale = $domdefaults{'datelocale_def'}; + } + } + } elsif ($Apache::lonnet::env{'user.domain'} ne '') { + my %udomdefaults = &Apache::lonnet::get_domain_defaults($Apache::lonnet::env{'user.domain'}); + if ($udomdefaults{'datelocale_def'} ne '') { + $datelocale = $udomdefaults{'datelocale_def'}; + } } - my $enc=¤t_encoding(); - if ($enc) { + if ($datelocale ne '') { + eval { + $locale_obj = DateTime::Locale->load($datelocale); + }; + if (!$@) { + if ($locale_obj->id() eq $datelocale) { + return $locale_obj; + } + } + } + return $locale_obj; +} + + +# ==================== 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 +sub normalize_string { + my $s = shift; + $s =~ s/\s+/ /g; + $s =~ s/<[^>]+>//g; + # Pop off beginning or ending spaces, which aren't good + $s =~ s/^\s+//; + $s =~ s/\s+$//; + return $s; +} + +# alias for normalize_string; recommend using it only in the lexicon +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 +sub mtn (@) { + my @args = @_; # don't want to modify caller's string; if we + # didn't care about that we could set $_[0] + # directly + $args[0] = normalize_string($args[0]); + my $translation = &mt(@args); + if ($translation ne $args[0]) { + return $translation; + } else { + return $_[0]; } } +# ---------------------------------------------------- Replace MT{...} in files + +sub transstatic { + my $strptr=shift; + $$strptr=~s/MT\{([^\}]*)\}/&mt($1)/gse; +} + +=pod + +=item * mt_escape + +mt_escape takes a string reference and escape the [] in there so mt +will leave them as is and not try to expand them + +=cut + +sub mt_escape { + my ($str_ref) = @_; + $$str_ref =~s/~/~~/g; + $$str_ref =~s/([\[\]])/~$1/g; +} + 1; __END__