version 1.48, 2008/09/13 02:37:29
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version 1.67, 2019/02/24 01:38:14
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Line 38 Apache::lonlocal - provides localization
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Line 38 Apache::lonlocal - provides localization
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lonlocal provides localization services for LON-CAPA programmers based |
lonlocal provides localization services for LON-CAPA programmers based |
on Locale::Maketext. See |
on Locale::Maketext. See |
C<http://search.cpan.org/dist/Locale-Maketext/lib/Locale/Maketext.pod> |
C<https://metacpan.org/pod/Locale::Maketext> |
for more information on Maketext. |
for more information on Maketext. |
|
|
=head1 OVERVIEWX<internationalization> |
=head1 OVERVIEWX<internationalization> |
Line 81 Inside might be something like this
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Line 81 Inside might be something like this
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if ($status eq 'WON') { |
if ($status eq 'WON') { |
$message='You have won.'; |
$message='You have won.'; |
} elsif ($status eq 'LOST') { |
} elsif ($status eq 'LOST') { |
$message='You are a total looser.'; |
$message='You are a total loser.'; |
} |
} |
return $message; |
return $message; |
} |
} |
Line 103 The first two examples are easy:
|
Line 103 The first two examples are easy:
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if ($status eq 'WON') { |
if ($status eq 'WON') { |
$message='You have won.'; |
$message='You have won.'; |
} elsif ($status eq 'LOST') { |
} elsif ($status eq 'LOST') { |
$message='You are a total looser.'; |
$message='You are a total loser.'; |
} |
} |
return &mt($message); |
return &mt($message); |
} |
} |
Line 135 like this:
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Line 135 like this:
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'You have won.' |
'You have won.' |
=> 'Sie haben gewonnen.', |
=> 'Sie haben gewonnen.', |
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'You are a total looser.' |
'You are a total loser.' |
=> 'Sie sind der totale Verlierer.', |
=> 'Sie sind der totale Verlierer.', |
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'Rules' |
'Rules' |
Line 153 ignore the rest of the line.
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Line 153 ignore the rest of the line.
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This is a relatively easy task, and any help is appreciated. |
This is a relatively easy task, and any help is appreciated. |
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Maketext can do a whole lot more, see |
Maketext can do a whole lot more, see |
C<http://search.cpan.org/dist/Locale-Maketext/lib/Locale/Maketext.pod> |
C<https://metacpan.org/pod/Locale::Maketext> |
but for most purposes, we do not have to mess with that. |
but for most purposes, we do not have to mess with that. |
|
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=cut |
=cut |
Line 166 use locale;
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Line 166 use locale;
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use POSIX qw(locale_h strftime); |
use POSIX qw(locale_h strftime); |
use DateTime(); |
use DateTime(); |
use DateTime::TimeZone; |
use DateTime::TimeZone; |
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use DateTime::Locale; |
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require Exporter; |
require Exporter; |
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our @ISA = qw (Exporter); |
our @ISA = qw (Exporter); |
our @EXPORT = qw(mt mtn ns mt_user); |
our @EXPORT = qw(mt mtn ns mt_user js_escape html_escape); |
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my %mtcache=(); |
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# ========================================================= The language handle |
# ========================================================= The language handle |
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use vars qw($lh); |
use vars qw($lh $current_language); |
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# ===================================================== The "MakeText" function |
# ===================================================== The "MakeText" function |
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Line 190 sub mt (@) {
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Line 193 sub mt (@) {
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return $_[0]; |
return $_[0]; |
} |
} |
} else { |
} else { |
return $lh->maketext(@_); |
if ($#_>0) { return $lh->maketext(@_); } |
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if ($mtcache{$current_language.':'.$_[0]}) { |
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return $mtcache{$current_language.':'.$_[0]}; |
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} |
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my $translation=$lh->maketext(@_); |
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$mtcache{$current_language.':'.$_[0]}=$translation; |
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return $translation; |
} |
} |
} else { |
} else { |
if (wantarray) { |
if (wantarray) { |
Line 232 sub current_language {
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Line 241 sub current_language {
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return 'en'; |
return 'en'; |
} |
} |
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sub preferred_languages { |
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my @languages=(); |
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if (($Apache::lonnet::env{'request.role.adv'}) && ($Apache::lonnet::env{'form.languages'})) { |
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@languages=(@languages,split(/\s*(\,|\;|\:)\s*/,$Apache::lonnet::env{'form.languages'})); |
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} |
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if ($Apache::lonnet::env{'course.'.$Apache::lonnet::env{'request.course.id'}.'.languages'}) { |
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@languages=(@languages,split(/\s*(\,|\;|\:)\s*/, |
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$Apache::lonnet::env{'course.'.$Apache::lonnet::env{'request.course.id'}.'.languages'})); |
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} |
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if ($Apache::lonnet::env{'environment.languages'}) { |
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@languages=(@languages, |
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split(/\s*(\,|\;|\:)\s*/,$Apache::lonnet::env{'environment.languages'})); |
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} |
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my $browser=$ENV{'HTTP_ACCEPT_LANGUAGE'}; |
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if ($browser) { |
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my @browser = |
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map { (split(/\s*;\s*/,$_))[0] } (split(/\s*,\s*/,$browser)); |
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push(@languages,@browser); |
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} |
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my $defdom = &Apache::lonnet::default_login_domain(); |
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foreach my $domtype ($Apache::lonnet::env{'user.domain'},$Apache::lonnet::env{'request.role.domain'},$defdom) { |
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if (($domtype ne '') && ($domtype ne 'public')) { |
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my %domdefs = &Apache::lonnet::get_domain_defaults($domtype); |
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if ($domdefs{'lang_def'} ne '') { |
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push(@languages,$domdefs{'lang_def'}); |
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} |
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} |
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} |
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return &get_genlanguages(@languages); |
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} |
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sub get_genlanguages { |
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my (@languages) = @_; |
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# turn "en-ca" into "en-ca,en" |
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my @genlanguages; |
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foreach my $lang (@languages) { |
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unless ($lang=~/\w/) { next; } |
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push(@genlanguages,$lang); |
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if ($lang=~/(\-|\_)/) { |
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push(@genlanguages,(split(/(\-|\_)/,$lang))[0]); |
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} |
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} |
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#uniqueify the languages list |
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my %count; |
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@genlanguages = map { $count{$_}++ == 0 ? $_ : () } @genlanguages; |
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return @genlanguages; |
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} |
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# ============================================================== What encoding? |
# ============================================================== What encoding? |
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sub current_encoding { |
sub current_encoding { |
my $default='UTF-8'; |
my $default='UTF-8'; |
if ($Apache::lonnet::env{'browser.os'} eq 'win' && |
unless ($Apache::lonnet::env{'browser.unicode'}) { |
$Apache::lonnet::env{'browser.type'} eq 'explorer') { |
if ($Apache::lonnet::env{'browser.os'} eq 'win' && |
$default='ISO-8859-1'; |
$Apache::lonnet::env{'browser.type'} eq 'explorer') { |
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$default='ISO-8859-1'; |
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} |
} |
} |
if ($lh) { |
if ($lh) { |
my $enc=$lh->maketext('char_encoding'); |
my $enc=$lh->maketext('char_encoding'); |
Line 264 sub current_locale {
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Line 325 sub current_locale {
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sub texthash { |
sub texthash { |
my %hash=@_; |
my %hash=@_; |
foreach (keys %hash) { |
foreach (keys(%hash)) { |
$hash{$_}=&mt($hash{$_}); |
$hash{$_}=&mt($hash{$_}); |
} |
} |
return %hash; |
return %hash; |
Line 273 sub texthash {
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Line 334 sub texthash {
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# ========= Get a handle (do not invoke in vain, leave this to access handlers) |
# ========= Get a handle (do not invoke in vain, leave this to access handlers) |
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sub get_language_handle { |
sub get_language_handle { |
my $r=shift; |
my ($r,$chosen) = @_; |
if ($r) { |
if ($r) { |
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; |
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if ($chosen ne '') { |
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@languages=($chosen); |
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} else { |
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@languages=&preferred_languages(); |
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} |
$ENV{'HTTP_ACCEPT_LANGUAGE'}=''; |
$ENV{'HTTP_ACCEPT_LANGUAGE'}=''; |
$lh=Apache::localize->get_handle(@languages); |
$lh=Apache::localize->get_handle(@languages); |
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$current_language=¤t_language(); |
if ($r) { |
if ($r) { |
$r->content_languages([¤t_language()]); |
$r->content_languages([¤t_language()]); |
} |
} |
Line 289 sub get_language_handle {
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Line 356 sub get_language_handle {
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# ========================================================== 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 '') { |
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if ($Apache::lonnet::env{'course.'.$cid.'.timezone'}) { |
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$timezone = $Apache::lonnet::env{'course.'.$cid.'.timezone'}; |
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} else { |
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my $cdom = $Apache::lonnet::env{'course.'.$cid.'.domain'}; |
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if ($cdom ne '') { |
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my %domdefaults = &Apache::lonnet::get_domain_defaults($cdom); |
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if ($domdefaults{'timezone_def'} ne '') { |
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$timezone = $domdefaults{'timezone_def'}; |
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} |
} |
} |
} |
} |
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} elsif ($Apache::lonnet::env{'request.role.domain'} ne '') { |
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my %uroledomdefs = |
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&Apache::lonnet::get_domain_defaults($Apache::lonnet::env{'request.role.domain'}); |
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if ($uroledomdefs{'timezone_def'} ne '') { |
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$timezone = $uroledomdefs{'timezone_def'}; |
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} |
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} elsif (($Apache::lonnet::env{'user.domain'} ne '') && |
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($Apache::lonnet::env{'user.domain'} ne 'public')) { |
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my %udomdefaults = |
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&Apache::lonnet::get_domain_defaults($Apache::lonnet::env{'user.domain'}); |
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if ($udomdefaults{'timezone_def'} ne '') { |
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$timezone = $udomdefaults{'timezone_def'}; |
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} |
} |
} |
if ($timezone ne '') { |
if ($timezone ne '') { |
if (DateTime::TimeZone->is_valid_name($timezone)) { |
if (DateTime::TimeZone->is_valid_name($timezone)) { |
Line 310 sub gettimezone {
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Line 399 sub gettimezone {
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} |
} |
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sub locallocaltime { |
sub locallocaltime { |
my $thistime=shift; |
my ($thistime,$timezone) = @_; |
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if (!defined($thistime) || $thistime eq '') { |
if (!defined($thistime) || $thistime eq '') { |
return &mt('Never'); |
return &mt('Never'); |
} |
} |
Line 324 sub locallocaltime {
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Line 414 sub locallocaltime {
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} |
} |
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my $dt = DateTime->from_epoch(epoch => $thistime) |
my $dt = DateTime->from_epoch(epoch => $thistime) |
->set_time_zone(&gettimezone()); |
->set_time_zone(gettimezone($timezone)); |
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# TimeZone tries to determine the 'local' timezone from $ENV{TZ} if this |
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# fails it searches through various system files. Under certain |
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# circumstances this is an extremly expensive operation. |
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# So after the first run we store the timezone in $ENV{TZ} to significantly |
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# speed up future lookups. |
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$ENV{TZ} = $dt->time_zone()->name() |
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if (! $ENV{TZ} && gettimezone($timezone) eq 'local'); |
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if ((¤t_language=~/^en/) || (!$lh)) { |
if ((¤t_language=~/^en/) || (!$lh)) { |
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return $dt->strftime("%a %b %e %I:%M:%S %P %Y (%Z)"); |
return $dt->strftime("%a %b %e %I:%M:%S %P %Y (%Z)"); |
Line 366 sub locallocaltime {
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Line 465 sub locallocaltime {
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} |
} |
} |
} |
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# ==================== Normalize string (reduce fragility in the lexicon files) |
sub getdatelocale { |
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my ($datelocale,$locale_obj); |
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if ($Apache::lonnet::env{'course.'.$Apache::lonnet::env{'request.course.id'}.'.datelocale'}) { |
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$datelocale = $Apache::lonnet::env{'course.'.$Apache::lonnet::env{'request.course.id'}.'.datelocale'}; |
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} elsif ($Apache::lonnet::env{'request.course.id'} ne '') { |
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my $cdom = $Apache::lonnet::env{'course.'.$Apache::lonnet::env{'request.course.id'}.'.domain'}; |
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if ($cdom ne '') { |
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my %domdefaults = &Apache::lonnet::get_domain_defaults($cdom); |
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if ($domdefaults{'datelocale_def'} ne '') { |
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$datelocale = $domdefaults{'datelocale_def'}; |
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} |
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} |
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} elsif ($Apache::lonnet::env{'user.domain'} ne '') { |
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my %udomdefaults = &Apache::lonnet::get_domain_defaults($Apache::lonnet::env{'user.domain'}); |
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if ($udomdefaults{'datelocale_def'} ne '') { |
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$datelocale = $udomdefaults{'datelocale_def'}; |
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} |
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} |
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if ($datelocale ne '') { |
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eval { |
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$locale_obj = DateTime::Locale->load($datelocale); |
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}; |
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if (!$@) { |
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if ($locale_obj->id() eq $datelocale) { |
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return $locale_obj; |
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} |
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} |
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} |
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return $locale_obj; |
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} |
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=pod |
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=over |
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=item * normalize_string() |
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Normalize string (reduce fragility in the lexicon files) |
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This normalizes a string to reduce fragility in the lexicon files of |
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huge messages (such as are used by the helper), and allow useful |
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formatting: reduce all consecutive whitespace to a single space, |
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and remove all HTML |
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=cut |
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# This normalizes a string to reduce fragility in the lexicon files of |
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# huge messages (such as are used by the helper), and allow useful |
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# formatting: reduce all consecutive whitespace to a single space, |
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# and remove all HTML |
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sub normalize_string { |
sub normalize_string { |
my $s = shift; |
my $s = shift; |
$s =~ s/\s+/ /g; |
$s =~ s/\s+/ /g; |
Line 382 sub normalize_string {
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Line 521 sub normalize_string {
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return $s; |
return $s; |
} |
} |
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# alias for normalize_string; recommend using it only in the lexicon |
=pod |
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=item * ns() |
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alias for normalize_string; recommend using it only in the lexicon |
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=cut |
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sub ns { |
sub ns { |
return normalize_string(@_); |
return normalize_string(@_); |
} |
} |
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# mtn: call the mt function and the normalization function easily. |
=pod |
# Returns original non-normalized string if there was no translation |
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=item * mtn() |
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mtn: call the mt function and the normalization function easily. |
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Returns original non-normalized string if there was no translation |
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=cut |
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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] |
Line 411 sub transstatic {
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Line 564 sub transstatic {
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=pod |
=pod |
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=item * mt_escape |
=item * mt_escape() |
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mt_escape takes a string reference and escape the [] in there so mt |
mt_escape takes a string reference and escape the [] in there so mt |
will leave them as is and not try to expand them |
will leave them as is and not try to expand them |
Line 424 sub mt_escape {
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Line 577 sub mt_escape {
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$$str_ref =~s/([\[\]])/~$1/g; |
$$str_ref =~s/([\[\]])/~$1/g; |
} |
} |
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=pod |
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=item * js_escape() |
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js_escape takes a string, string reference or hash reference, |
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and escapes the values so that they can be used within a <script> element. |
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It replaces all instances of \ by \\, ' by \', " by \" and \n by \\n. |
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It is typically used with localized strings, which might contain quotes. |
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=cut |
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sub js_escape { |
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my ($v) = @_; |
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my $ref = ref($v); |
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if ($ref eq 'SCALAR') { |
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$$v =~ s/\\/\\\\/g; |
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$$v =~ s/'/\\'/g; |
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$$v =~ s/"/\\"/g; |
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$$v =~ s/\n/\\n/g; |
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} elsif ($ref eq 'HASH') { |
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foreach my $key (keys %$v) { |
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$v->{$key} =~ s/\\/\\\\/g; |
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$v->{$key} =~ s/'/\\'/g; |
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$v->{$key} =~ s/"/\\"/g; |
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$v->{$key} =~ s/\n/\\n/g; |
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} |
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} else { |
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$v =~ s/\\/\\\\/g; |
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$v =~ s/'/\\'/g; |
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$v =~ s/"/\\"/g; |
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$v =~ s/\n/\\n/g; |
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return $v; |
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} |
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} |
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=pod |
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=item * html_escape() |
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js_escape takes a string, string reference or hash reference, |
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and escapes the values so that they can be used as HTML. |
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It encodes <, >, &, ' and ". |
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=cut |
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sub html_escape { |
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my ($v) = @_; |
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my $ref = ref($v); |
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if ($ref eq 'SCALAR') { |
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$$v =~ s/&/&/g; |
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$$v =~ s/</</g; |
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$$v =~ s/>/>/g; |
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$$v =~ s/'/'/g; |
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$$v =~ s/"/"/g; |
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} elsif ($ref eq 'HASH') { |
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foreach my $key (keys %$v) { |
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$v->{$key} =~ s/&/&/g; |
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$v->{$key} =~ s/</</g; |
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$v->{$key} =~ s/>/>/g; |
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$v->{$key} =~ s/'/'/g; |
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$v->{$key} =~ s/"/"/g; |
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} |
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} else { |
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$v =~ s/&/&/g; |
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$v =~ s/</</g; |
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$v =~ s/>/>/g; |
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$v =~ s/'/'/g; |
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$v =~ s/"/"/g; |
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return $v; |
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} |
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# NOTE: we could also turn \n into <br> if needed |
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} |
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=pod |
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|
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=item * choose_language() |
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|
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choose_language prompts a user to enter a two letter language code via |
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keyboard when running a script from the command line. Default is en. |
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=back |
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=cut |
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sub choose_language { |
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my %languages = ( |
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ar => 'Arabic', |
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de => 'German', |
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en => 'English', |
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es => 'Spanish', |
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fa => 'Persian', |
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fr => 'French', |
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he => 'Hebrew', |
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ja => 'Japanese', |
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pt => 'Portuguese', |
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ru => 'Russian', |
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tr => 'Turkish', |
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zh => 'Chinese (Simplified)' |
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); |
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my @posslangs = sort(keys(%languages)); |
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my $langlist = join('|',@posslangs); |
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my $lang = 'en'; |
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print 'Language: English (en). Change? ['.$langlist.']? '; |
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my $langchoice = <STDIN>; |
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chomp($langchoice); |
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$langchoice =~ s/(^\s+|\s+$)//g; |
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$langchoice = lc($langchoice); |
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if (defined($languages{$langchoice})) { |
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$lang = $langchoice; |
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} |
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return $lang; |
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} |
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1; |
1; |
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__END__ |
__END__ |