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For opac/opac-main.pl
  Run on Fri Jul 18 13:58:34 2008
Reported on Fri Jul 18 13:58:41 2008

FileC4/Languages.pm
Statements Executed635
Total Time0.00971400000000001 seconds

Subroutines — ordered by inclusive time then name
CallsInclusive
Time		Subroutine
10.01548C4::Languages::getTranslatedLanguages
10.01275C4::Languages::getAllLanguages
10.00202C4::Languages::_build_languages_arrayref
20.00050C4::Languages::regex_lang_subtags
10.00027C4::Languages::_get_language_dirs
00C4::Languages::BEGIN
00C4::Languages::_get_themes
00C4::Languages::accept_language
00C4::Languages::getFrameworkLanguages
00C4::Languages::get_bidi
00C4::Languages::language_get_description

LineStmts.Exclusive
Time		Avg.Code
1package C4::Languages;
2
3# Copyright 2006 (C) LibLime
4# Joshua Ferraro <jmf@liblime.com>
5#
6# This file is part of Koha.
7#
8# Koha is free software; you can redistribute it and/or modify it under the
9# terms of the GNU General Public License as published by the Free Software
10# Foundation; either version 2 of the License, or (at your option) any later
11# version.
12#
13# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
14# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
15# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
16#
17# You should have received a copy of the GNU General Public License along with
18# Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
19# Suite 330, Boston, MA 02111-1307 USA
20
21
22use strict;
23#use warnings; #FIXME: turn off warnings before release
24use Carp;
25use C4::Context;
26use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS $DEBUG);
27
28BEGIN {
29 $VERSION = 3.00;
30 require Exporter;
31 @ISA = qw(Exporter);
32 @EXPORT = qw(
33 &getFrameworkLanguages
34 &getTranslatedLanguages
35 &getAllLanguages
36 );
37 @EXPORT_OK = qw(getFrameworkLanguages getTranslatedLanguages getAllLanguages get_bidi regex_lang_subtags language_get_description accept_language);
38 $DEBUG = 0;
39}
40
41=head1 NAME
42
43C4::Languages - Perl Module containing language list functions for Koha
44
45=head1 SYNOPSIS
46
47use C4::Languages;
48
49=head1 DESCRIPTION
50
51=head1 FUNCTIONS
52
53=head2 getFrameworkLanguages
54
55Returns a reference to an array of hashes:
56
57 my $languages = getFrameworkLanguages();
58 for my $language(@$languages) {
59 print "$language->{language_code}\n"; # language code in iso 639-2
60 print "$language->{language_name}\n"; # language name in native script
61 print "$language->{language_locale_name}\n"; # language name in current locale
62 }
63
64=cut
65our $memd;
66if (C4::Context->preference('usecache')){
67 require Cache::Memcached;
68 Cache::Memcached->import();
69 $memd = new Cache::Memcached(
70 'servers'=>['127.0.0.1:11211'],
71 );
72}
73
74
75
76sub getFrameworkLanguages {
77 # get a hash with all language codes, names, and locale names
78 my $all_languages = getAllLanguages();
79 my @languages;
80
81 # find the available directory names
82 my $dir=C4::Context->config('intranetdir')."/installer/data/";
83 opendir (MYDIR,$dir);
84 my @listdir= grep { !/^\.|CVS/ && -d "$dir/$_"} readdir(MYDIR);
85 closedir MYDIR;
86
87 # pull out all data for the dir names that exist
88 for my $dirname (@listdir) {
89 for my $language_set (@$all_languages) {
90
91 if ($dirname eq $language_set->{language_code}) {
92 push @languages, {
93 'language_code'=>$dirname,
94 'language_description'=>$language_set->{language_description},
95 'native_descrition'=>$language_set->{language_native_description} }
96 }
97 }
98 }
99 return \@languages;
100}
101
102=head2 getTranslatedLanguages
103
104Returns a reference to an array of hashes:
105
106 my $languages = getTranslatedLanguages();
107 print "Available translated languages:\n";
108 for my $language(@$trlanguages) {
109 print "$language->{language_code}\n"; # language code in iso 639-2
110 print "$language->{language_name}\n"; # language name in native script
111 print "$language->{language_locale_name}\n"; # language name in current locale
112 }
113
114=cut
115
116
# spent 0.01548s within C4::Languages::getTranslatedLanguages which was called: # 1 times (0.01548s) by C4::Output::gettemplate at line 117 of C4/Output.pm
sub getTranslatedLanguages {
11770.000022e-06 my ($interface, $theme, $current_language, $which) = @_;
118 my $htdocs;
119 my $all_languages = getAllLanguages();
# spent 0.01275s making 1 calls to C4::Languages::getAllLanguages
120 my @languages;
121 my $lang;
122 my @enabled_languages;
123
12430.000050.00002 if ($interface && $interface eq 'opac' ) {
125 @enabled_languages = split ",", C4::Context->preference('opaclanguages');
# spent 0.00030s making 1 calls to C4::Context::preference
126 $htdocs = C4::Context->config('opachtdocs');
# spent 0.00002s making 1 calls to C4::Context::config
12720.000060.00003 if ( $theme and -d "$htdocs/$theme" ) {
128 (@languages) = _get_language_dirs($htdocs,$theme);
# spent 0.00027s making 1 calls to C4::Languages::_get_language_dirs
129 return _build_languages_arrayref($all_languages,\@languages,$current_language,\@enabled_languages);
# spent 0.00202s making 1 calls to C4::Languages::_build_languages_arrayref
130 }
131 else {
132 for my $theme ( _get_themes('opac') ) {
133 push @languages, _get_language_dirs($htdocs,$theme);
134 }
135 return _build_languages_arrayref($all_languages,\@languages,$current_language,\@enabled_languages);
136 }
137 }
138 elsif ($interface && $interface eq 'intranet' ) {
139 @enabled_languages = split ",", C4::Context->preference('language');
140 $htdocs = C4::Context->config('intrahtdocs');
141 if ( $theme and -d "$htdocs/$theme" ) {
142 @languages = _get_language_dirs($htdocs,$theme);
143 return _build_languages_arrayref($all_languages,\@languages,$current_language,\@enabled_languages);
144 }
145 else {
146 foreach my $theme ( _get_themes('intranet') ) {
147 push @languages, _get_language_dirs($htdocs,$theme);
148 }
149 return _build_languages_arrayref($all_languages,\@languages,$current_language,\@enabled_languages);
150 }
151 }
152 else {
153 @enabled_languages = split ",", C4::Context->preference('opaclanguages');
154 my $htdocs = C4::Context->config('intrahtdocs');
155 foreach my $theme ( _get_themes('intranet') ) {
156 push @languages, _get_language_dirs($htdocs,$theme);
157 }
158 $htdocs = C4::Context->config('opachtdocs');
159 foreach my $theme ( _get_themes('opac') ) {
160 push @languages, _get_language_dirs($htdocs,$theme);
161 }
162 my %seen;
163 $seen{$_}++ for @languages;
164 @languages = keys %seen;
165 return _build_languages_arrayref($all_languages,\@languages,$current_language,\@enabled_languages);
166 }
167}
168
169=head2 getAllLanguages
170
171Returns a reference to an array of hashes:
172
173 my $alllanguages = getAllLanguages();
174 print "Available translated languages:\n";
175 for my $language(@$alllanguages) {
176 print "$language->{language_code}\n";
177 print "$language->{language_name}\n";
178 print "$language->{language_locale_name}\n";
179 }
180
181=cut
182
183
# spent 0.01275s within C4::Languages::getAllLanguages which was called: # 1 times (0.01275s) by C4::Languages::getTranslatedLanguages at line 119 of C4/Languages.pm
sub getAllLanguages {
18470.000170.00002 my @languages_loop;
185 my $dbh=C4::Context->dbh;
# spent 0.00015s making 1 calls to C4::Context::dbh
186 my $current_language = shift || 'en';
18716e-066e-06 my $sth = $dbh->prepare('SELECT * FROM language_subtag_registry WHERE type=\'language\'');
# spent 0.00006s making 1 calls to DBI::db::prepare
188 $sth->execute();
# spent 0.00006s making 1 calls to DBI::st::execute
189 while (my $language_subtag_registry = $sth->fetchrow_hashref) {
# spent 0.00008s making 1 calls to DBI::st::fetchrow_hashref # spent 0.00004s making 1 calls to DBI::common::FETCH # spent 0.00001s making 1 calls to DBI::st::fetch
190
191 # pull out all the script descriptions for each language
1921500.004560.00003 my $sth2= $dbh->prepare("SELECT * FROM language_descriptions LEFT JOIN language_rfc4646_to_iso639 on language_rfc4646_to_iso639.rfc4646_subtag = language_descriptions.subtag WHERE type='language' AND subtag =? AND language_descriptions.lang = ?");
# spent 0.00170s making 30 calls to DBI::db::prepare, avg 0.00006s/call
193 $sth2->execute($language_subtag_registry->{subtag},$current_language);
# spent 0.00188s making 30 calls to DBI::st::execute, avg 0.00006s/call
194
19510.000110.00011 my $sth3 = $dbh->prepare("SELECT description FROM language_descriptions WHERE type='language' AND subtag=? AND lang=?");
# spent 0.00168s making 30 calls to DBI::db::prepare, avg 0.00006s/call
196
197 # add the correct description info
198 while (my $language_descriptions = $sth2->fetchrow_hashref) {
# spent 0.00089s making 30 calls to DBI::st::fetchrow_hashref, avg 0.00003s/call # spent 0.00026s making 30 calls to DBI::common::FETCH, avg 9e-06s/call # spent 0.00025s making 30 calls to DBI::st::fetch, avg 8e-06s/call
1991500.003330.00002 $sth3->execute($language_subtag_registry->{subtag},$language_subtag_registry->{subtag});
# spent 0.00163s making 30 calls to DBI::st::execute, avg 0.00005s/call
200 my $native_description;
201 while (my $description = $sth3->fetchrow_hashref) {
# spent 0.00079s making 30 calls to DBI::st::fetchrow_hashref, avg 0.00003s/call # spent 0.00022s making 30 calls to DBI::common::FETCH, avg 7e-06s/call # spent 0.00021s making 30 calls to DBI::st::fetch, avg 7e-06s/call
202300.000720.00002 $native_description = $description->{description};
# spent 0.00063s making 30 calls to DBI::st::fetchrow_hashref, avg 0.00002s/call # spent 0.00021s making 30 calls to DBI::st::fetch, avg 7e-06s/call # spent 0.00018s making 30 calls to DBI::common::FETCH, avg 6e-06s/call
203 }
204
205 # fill in the ISO6329 code
206 $language_subtag_registry->{iso639_2_code} = $language_descriptions->{iso639_2_code};
207 # fill in the native description of the language, as well as the current language's translation of that if it exists
208600.000091e-06 if ($native_description) {
# spent 0.00061s making 30 calls to DBI::st::fetchrow_hashref, avg 0.00002s/call # spent 0.00019s making 30 calls to DBI::st::fetch, avg 6e-06s/call # spent 0.00017s making 30 calls to DBI::common::FETCH, avg 6e-06s/call
209 $language_subtag_registry->{language_description} = $native_description;
210 $language_subtag_registry->{language_description}.=" ($language_descriptions->{description})" if $language_descriptions->{description};
211 }
212 else {
213 $language_subtag_registry->{language_description} = $language_descriptions->{description};
214 }
215 }
216 push @languages_loop, $language_subtag_registry;
# spent 0.00066s making 30 calls to DBI::st::fetchrow_hashref, avg 0.00002s/call # spent 0.00019s making 30 calls to DBI::st::fetch, avg 6e-06s/call # spent 0.00017s making 30 calls to DBI::common::FETCH, avg 6e-06s/call
217 }
218 return \@languages_loop;
219}
220
221=head2 _get_themes
222
223Internal function, returns an array of all available themes.
224
225 (@themes) = &_get_themes('opac');
226 (@themes) = &_get_themes('intranet');
227
228=cut
229
230sub _get_themes {
231 my $interface = shift;
232 my $htdocs;
233 my @themes;
234 if ( $interface eq 'intranet' ) {
235 $htdocs = C4::Context->config('intrahtdocs');
236 }
237 else {
238 $htdocs = C4::Context->config('opachtdocs');
239 }
240 opendir D, "$htdocs";
241 my @dirlist = readdir D;
242 foreach my $directory (@dirlist) {
243 # if there's an en dir, it's a valid theme
244 -d "$htdocs/$directory/en" and push @themes, $directory;
245 }
246 return @themes;
247}
248
249=head2 _get_language_dirs
250
251Internal function, returns an array of directory names, excluding non-language directories
252
253=cut
254
255
# spent 0.00027s within C4::Languages::_get_language_dirs which was called: # 1 times (0.00027s) by C4::Languages::getTranslatedLanguages at line 128 of C4/Languages.pm
sub _get_language_dirs {
25650.000060.00001 my ($htdocs,$theme) = @_;
257 my @lang_strings;
258 opendir D, "$htdocs/$theme";
259 for my $lang_string ( readdir D ) {
2601750.000095e-07 next if $lang_string =~/^\./;
261 next if $lang_string eq 'all';
262 next if $lang_string =~/png$/;
263 next if $lang_string =~/css$/;
264 next if $lang_string =~/CVS$/;
265 next if $lang_string =~/\.txt$/i; #Don't read the readme.txt !
266 next if $lang_string =~/img|images|famfam/;
267 push @lang_strings, $lang_string;
268 }
269 return (@lang_strings);
270}
271
272=head2 _build_languages_arrayref
273
274Internal function for building the ref to array of hashes
275
276FIXME: this could be rewritten and simplified using map
277
278=cut
279
280
# spent 0.00202s within C4::Languages::_build_languages_arrayref which was called: # 1 times (0.00202s) by C4::Languages::getTranslatedLanguages at line 129 of C4/Languages.pm
sub _build_languages_arrayref {
28129e-065e-06 my ($all_languages,$translated_languages,$current_language,$enabled_languages) = @_;
28220.000017e-06 if (C4::Context->preference('usecache')){
# spent 0.00028s making 1 calls to C4::Context::preference
283 my $languages = $memd->get("koha::C4::Languages::languages");
# spent 0.00172s making 1 calls to Cache::Memcached::get
284 if ($languages) {
285 return $languages;
286 }
287 }
288 my @translated_languages = @$translated_languages;
289 my @languages_loop; # the final reference to an array of hashrefs
290 my @enabled_languages = @$enabled_languages;
291 # how many languages are enabled, if one, take note, some contexts won't need to display it
292 my $one_language_enabled = 1 unless @enabled_languages > 1;
293 my %seen_languages; # the language tags we've seen
294 my %found_languages;
295 my $language_groups;
296 my $track_language_groups;
297 my $current_language_regex = regex_lang_subtags($current_language);
298 # Loop through the translated languages
299 for my $translated_language (@translated_languages) {
300 # separate the language string into its subtag types
301 my $language_subtags_hashref = regex_lang_subtags($translated_language);
302
303 # is this language string 'enabled'?
304 for my $enabled_language (@enabled_languages) {
305 #warn "Checking out if $translated_language eq $enabled_language";
306 $language_subtags_hashref->{'enabled'} = 1 if $translated_language eq $enabled_language;
307 }
308
309 # group this language, key by langtag
310 $language_subtags_hashref->{'sublanguage_current'} = 1 if $translated_language eq $current_language;
311 $language_subtags_hashref->{'rfc4646_subtag'} = $translated_language;
312 $language_subtags_hashref->{'native_description'} = language_get_description($language_subtags_hashref->{language},$language_subtags_hashref->{language},'language');
313 $language_subtags_hashref->{'script_description'} = language_get_description($language_subtags_hashref->{script},$language_subtags_hashref->{'language'},'script');
314 $language_subtags_hashref->{'region_description'} = language_get_description($language_subtags_hashref->{region},$language_subtags_hashref->{'language'},'region');
315 $language_subtags_hashref->{'variant_description'} = language_get_description($language_subtags_hashref->{variant},$language_subtags_hashref->{'language'},'variant');
316 $track_language_groups->{$language_subtags_hashref->{'language'}}++;
317 push ( @{ $language_groups->{$language_subtags_hashref->{language}} }, $language_subtags_hashref );
318 }
319 # $key is a language subtag like 'en'
320 while( my ($key, $value) = each %$language_groups) {
321
322 # is this language group enabled? are any of the languages within it enabled?
323 my $enabled;
324 for my $enabled_language (@enabled_languages) {
325 my $regex_enabled_language = regex_lang_subtags($enabled_language);
326 $enabled = 1 if $key eq $regex_enabled_language->{language};
327 }
328 push @languages_loop, {
329 # this is only use if there is one
330 rfc4646_subtag => @$value[0]->{rfc4646_subtag},
331 native_description => language_get_description($key,$key,'language'),
332 language => $key,
333 sublanguages_loop => $value,
334 plural => $track_language_groups->{$key} >1 ? 1 : 0,
335 current => $current_language_regex->{language} eq $key ? 1 : 0,
336 group_enabled => $enabled,
337 one_language_enabled => $one_language_enabled,
338 };
339 }
340 if (C4::Context->preference('usecache')){
341 $memd->set("koha::C4::Languages::languages",\@languages_loop);
342 }
343 return \@languages_loop;
344}
345
346sub language_get_description {
347 my ($script,$lang,$type) = @_;
348 my $dbh = C4::Context->dbh;
349 my $desc;
350 my $sth = $dbh->prepare("SELECT description FROM language_descriptions WHERE subtag=? AND lang=? AND type=?");
351 #warn "QUERY: SELECT description FROM language_descriptions WHERE subtag=$script AND lang=$lang AND type=$type";
352 $sth->execute($script,$lang,$type);
353 while (my $descriptions = $sth->fetchrow_hashref) {
354 $desc = $descriptions->{'description'};
355 }
356 unless ($desc) {
357 $sth = $dbh->prepare("SELECT description FROM language_descriptions WHERE subtag=? AND lang=? AND type=?");
358 $sth->execute($script,'en',$type);
359 while (my $descriptions = $sth->fetchrow_hashref) {
360 $desc = $descriptions->{'description'};
361 }
362 }
363 return $desc;
364}
365=head2 regex_lang_subtags
366
367This internal sub takes a string composed according to RFC 4646 as
368an input and returns a reference to a hash containing keys and values
369for ( language, script, region, variant, extension, privateuse )
370
371=cut
372
373
# spent 0.00050s within C4::Languages::regex_lang_subtags which was called 2 times, avg 0.00025s/call: # 1 times (0.00035s) by C4::Output::themelanguage at line 138 of C4/Output.pm # 1 times (0.00015s) by C4::Output::gettemplate at line 113 of C4/Output.pm
sub regex_lang_subtags {
374400.000410.00001 my $string = shift;
375
376 # Regex for recognizing RFC 4646 well-formed tags
377 # http://www.rfc-editor.org/rfc/rfc4646.txt
378
379 # regexes based on : http://unicode.org/cldr/data/tools/java/org/unicode/cldr/util/data/langtagRegex.txt
380 # The structure requires no forward references, so it reverses the order.
381 # The uppercase comments are fragments copied from RFC 4646
382 #
383 # Note: the tool requires that any real "=" or "#" or ";" in the regex be escaped.
384
385 my $alpha = qr/[a-zA-Z]/ ; # ALPHA
386 my $digit = qr/[0-9]/ ; # DIGIT
387 my $alphanum = qr/[a-zA-Z0-9]/ ; # ALPHA / DIGIT
388 my $x = qr/[xX]/ ; # private use singleton
389 my $singleton = qr/[a-w y-z A-W Y-Z]/ ; # other singleton
390 my $s = qr/[-]/ ; # separator -- lenient parsers will use [-_]
391
392 # Now do the components. The structure is slightly different to allow for capturing the right components.
393 # The notation (?:....) is a non-capturing version of (...): so the "?:" can be deleted if someone doesn't care about capturing.
394
395 my $extlang = qr{(?: $s $alpha{3} )}x ; # *3("-" 3ALPHA)
396 my $language = qr{(?: $alpha{2,3} | $alpha{4,8} )}x ;
397 #my $language = qr{(?: $alpha{2,3}$extlang{0,3} | $alpha{4,8} )}x ; # (2*3ALPHA [ extlang ]) / 4ALPHA / 5*8ALPHA
398
399 my $script = qr{(?: $alpha{4} )}x ; # 4ALPHA
400
401 my $region = qr{(?: $alpha{2} | $digit{3} )}x ; # 2ALPHA / 3DIGIT
402
403 my $variantSub = qr{(?: $digit$alphanum{3} | $alphanum{5,8} )}x ; # *("-" variant), 5*8alphanum / (DIGIT 3alphanum)
404 my $variant = qr{(?: $variantSub (?: $s$variantSub )* )}x ; # *("-" variant), 5*8alphanum / (DIGIT 3alphanum)
405
406 my $extensionSub = qr{(?: $singleton (?: $s$alphanum{2,8} )+ )}x ; # singleton 1*("-" (2*8alphanum))
407 my $extension = qr{(?: $extensionSub (?: $s$extensionSub )* )}x ; # singleton 1*("-" (2*8alphanum))
408
409 my $privateuse = qr{(?: $x (?: $s$alphanum{1,8} )+ )}x ; # ("x"/"X") 1*("-" (1*8alphanum))
410
411 # Define certain grandfathered codes, since otherwise the regex is pretty useless.
412 # Since these are limited, this is safe even later changes to the registry --
413 # the only oddity is that it might change the type of the tag, and thus
414 # the results from the capturing groups.
415 # http://www.iana.org/assignments/language-subtag-registry
416 # Note that these have to be compared case insensitively, requiring (?i) below.
417
418 my $grandfathered = qr{(?: (?i)
419 en $s GB $s oed
420 | i $s (?: ami | bnn | default | enochian | hak | klingon | lux | mingo | navajo | pwn | tao | tay | tsu )
421 | sgn $s (?: BE $s fr | BE $s nl | CH $s de)
422)}x;
423
424 # For well-formedness, we don't need the ones that would otherwise pass, so they are commented out here
425
426 # | art $s lojban
427 # | cel $s gaulish
428 # | en $s (?: boont | GB $s oed | scouse )
429 # | no $s (?: bok | nyn)
430 # | zh $s (?: cmn | cmn $s Hans | cmn $s Hant | gan | guoyu | hakka | min | min $s nan | wuu | xiang | yue)
431
432 # Here is the final breakdown, with capturing groups for each of these components
433 # The language, variants, extensions, grandfathered, and private-use may have interior '-'
434
435 #my $root = qr{(?: ($language) (?: $s ($script) )? 40% (?: $s ($region) )? 40% (?: $s ($variant) )? 10% (?: $s ($extension) )? 5% (?: $s ($privateuse) )? 5% ) 90% | ($grandfathered) 5% | ($privateuse) 5% };
436
437 $string =~ qr{^ (?:($language)) (?:$s($script))? (?:$s($region))? (?:$s($variant))? (?:$s($extension))? (?:$s($privateuse))? $}xi; # |($grandfathered) | ($privateuse) $}xi;
438 my %subtag = (
439 'rfc4646_subtag' => $string,
440 'language' => $1,
441 'script' => $2,
442 'region' => $3,
443 'variant' => $4,
444 'extension' => $5,
445 'privateuse' => $6,
446 );
447 return \%subtag;
448}
449
450# Script Direction Resources:
451# http://www.w3.org/International/questions/qa-scripts
452sub get_bidi {
453 my ($language_script)= @_;
454 my $dbh = C4::Context->dbh;
455 my $bidi;
456 my $sth = $dbh->prepare('SELECT bidi FROM language_script_bidi WHERE rfc4646_subtag=?');
457 $sth->execute($language_script);
458 while (my $result = $sth->fetchrow_hashref) {
459 $bidi = $result->{'bidi'};
460 }
461 return $bidi;
462};
463
464sub accept_language {
465 # referenced http://search.cpan.org/src/CGILMORE/I18N-AcceptLanguage-1.04/lib/I18N/AcceptLanguage.pm
466 # FIXME: since this is only used in Output.pm as of Jan 8 2008, maybe it should be IN Output.pm
467 my ($clientPreferences,$supportedLanguages) = @_;
468 my @languages = ();
469 if ($clientPreferences) {
470 # There should be no whitespace anways, but a cleanliness/sanity check
471 $clientPreferences =~ s/\s//g;
472
473 # Prepare the list of client-acceptable languages
474 foreach my $tag (split(/,/, $clientPreferences)) {
475 my ($language, $quality) = split(/\;/, $tag);
476 $quality =~ s/^q=//i if $quality;
477 $quality = 1 unless $quality;
478 next if $quality <= 0;
479 # We want to force the wildcard to be last
480 $quality = 0 if ($language eq '*');
481 # Pushing lowercase language here saves processing later
482 push(@languages, { quality => $quality,
483 language => $language,
484 lclanguage => lc($language) });
485 }
486 } else {
487 carp "accept_language(x,y) called with no clientPreferences (x).";
488 }
489 # Prepare the list of server-supported languages
490 my %supportedLanguages = ();
491 my %secondaryLanguages = ();
492 foreach my $language (@$supportedLanguages) {
493 # warn "Language supported: " . $language->{language_code};
494 $supportedLanguages{lc($language->{language_code})} = $language->{language_code};
495 if ($language->{language_code} =~ /^([^-]+)-?/) {
496 $secondaryLanguages{lc($1)} = $language->{language_code};
497 }
498 }
499
500 # Reverse sort the list, making best quality at the front of the array
501 @languages = sort { $b->{quality} <=> $a->{quality} } @languages;
502 my $secondaryMatch = '';
503 foreach my $tag (@languages) {
504 if (exists($supportedLanguages{$tag->{lclanguage}})) {
505 # Client en-us eq server en-us
506 return $supportedLanguages{$tag->{language}} if exists($supportedLanguages{$tag->{language}});
507 return $supportedLanguages{$tag->{lclanguage}};
508 } elsif (exists($secondaryLanguages{$tag->{lclanguage}})) {
509 # Client en eq server en-us
510 return $secondaryLanguages{$tag->{language}} if exists($secondaryLanguages{$tag->{language}});
511 return $supportedLanguages{$tag->{lclanguage}};
512 } elsif ($tag->{lclanguage} =~ /^([^-]+)-/ && exists($secondaryLanguages{$1}) && $secondaryMatch eq '') {
513 # Client en-gb eq server en-us
514 $secondaryMatch = $secondaryLanguages{$1};
515 } elsif ($tag->{lclanguage} =~ /^([^-]+)-/ && exists($secondaryLanguages{$1}) && $secondaryMatch eq '') {
516 # FIXME: We just checked the exact same conditional!
517 # Client en-us eq server en
518 $secondaryMatch = $supportedLanguages{$1};
519 } elsif ($tag->{lclanguage} eq '*') {
520 # * matches every language not already specified.
521 # It doesn't care which we pick, so let's pick the default,
522 # if available, then the first in the array.
523 #return $acceptor->defaultLanguage() if $acceptor->defaultLanguage();
524 return $supportedLanguages->[0];
525 }
526 }
527 # No primary matches. Secondary? (ie, en-us requested and en supported)
528 return $secondaryMatch if $secondaryMatch;
529 return undef; # else, we got nothing.
530}
5311;
532
533__END__
534
535=head1 AUTHOR
536
537Joshua Ferraro
538
539=cut
Report produced by the NYTProf 2.01 Perl profiler, developed by Tim Bunce and Adam Kaplan.