1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
<?php
namespace Shaarli;
use Gettext\GettextTranslator;
use Gettext\Merge;
use Gettext\Translations;
use Gettext\Translator;
use Gettext\TranslatorInterface;
use Shaarli\Config\ConfigManager;
/**
* Class Languages
*
* Load Shaarli translations using 'gettext/gettext'.
* This class allows to either use PHP gettext extension, or a PHP implementation of gettext,
* with a fixed language, or dynamically using autoLocale().
*
* Translation files PO/MO files follow gettext standard and must be placed under:
* <translation path>/<language>/LC_MESSAGES/<domain>.[po|mo]
*
* Pros/cons:
* - gettext extension is faster
* - gettext is very system dependent (PHP extension, the locale must be installed, and web server reloaded)
*
* Settings:
* - translation.mode:
* - auto: use default setting (PHP implementation)
* - php: use PHP implementation
* - gettext: use gettext wrapper
* - translation.language:
* - auto: use autoLocale() and the language change according to user HTTP headers
* - fixed language: e.g. 'fr'
* - translation.extensions:
* - domain => translation_path: allow plugins and themes to extend the defaut extension
* The domain must be unique, and translation path must be relative, and contains the tree mentioned above.
*
* @package Shaarli
*/
class Languages
{
/**
* Core translations domain
*/
const DEFAULT_DOMAIN = 'shaarli';
/**
* @var TranslatorInterface
*/
protected $translator;
/**
* @var string
*/
protected $language;
/**
* @var ConfigManager
*/
protected $conf;
/**
* Languages constructor.
*
* @param string $language lang determined by autoLocale(), can be overridden.
* @param ConfigManager $conf instance.
*/
public function __construct($language, $conf)
{
$this->conf = $conf;
$confLanguage = $this->conf->get('translation.language', 'auto');
// Auto mode or invalid parameter, use the detected language.
// If the detected language is invalid, it doesn't matter, it will use English.
if ($confLanguage === 'auto' || ! $this->isValidLanguage($confLanguage)) {
$this->language = substr($language, 0, 5);
} else {
$this->language = $confLanguage;
}
if (! extension_loaded('gettext')
|| in_array($this->conf->get('translation.mode', 'auto'), ['auto', 'php'])
) {
$this->initPhpTranslator();
} else {
$this->initGettextTranslator();
}
// Register default functions (e.g. '__()') to use our Translator
$this->translator->register();
}
/**
* Initialize the translator using php gettext extension (gettext dependency act as a wrapper).
*/
protected function initGettextTranslator ()
{
$this->translator = new GettextTranslator();
$this->translator->setLanguage($this->language);
$this->translator->loadDomain(self::DEFAULT_DOMAIN, 'inc/languages');
// Default extension translation from the current theme
$themeTransFolder = rtrim($this->conf->get('raintpl_tpl'), '/') .'/'. $this->conf->get('theme') .'/language';
if (is_dir($themeTransFolder)) {
$this->translator->loadDomain($this->conf->get('theme'), $themeTransFolder, false);
}
foreach ($this->conf->get('translation.extensions', []) as $domain => $translationPath) {
if ($domain !== self::DEFAULT_DOMAIN) {
$this->translator->loadDomain($domain, $translationPath, false);
}
}
}
/**
* Initialize the translator using a PHP implementation of gettext.
*
* Note that if language po file doesn't exist, errors are ignored (e.g. not installed language).
*/
protected function initPhpTranslator()
{
$this->translator = new Translator();
$translations = new Translations();
// Core translations
try {
$translations = $translations->addFromPoFile('inc/languages/'. $this->language .'/LC_MESSAGES/shaarli.po');
$translations->setDomain('shaarli');
$this->translator->loadTranslations($translations);
} catch (\InvalidArgumentException $e) {}
// Default extension translation from the current theme
$theme = $this->conf->get('theme');
$themeTransFolder = rtrim($this->conf->get('raintpl_tpl'), '/') .'/'. $theme .'/language';
if (is_dir($themeTransFolder)) {
try {
$translations = Translations::fromPoFile(
$themeTransFolder .'/'. $this->language .'/LC_MESSAGES/'. $theme .'.po'
);
$translations->setDomain($theme);
$this->translator->loadTranslations($translations);
} catch (\InvalidArgumentException $e) {}
}
// Extension translations (plugins, themes, etc.).
foreach ($this->conf->get('translation.extensions', []) as $domain => $translationPath) {
if ($domain === self::DEFAULT_DOMAIN) {
continue;
}
try {
$extension = Translations::fromPoFile($translationPath . $this->language .'/LC_MESSAGES/'. $domain .'.po');
$extension->setDomain($domain);
$this->translator->loadTranslations($extension);
} catch (\InvalidArgumentException $e) {}
}
}
/**
* Checks if a language string is valid.
*
* @param string $language e.g. 'fr' or 'en_US'
*
* @return bool true if valid, false otherwise
*/
protected function isValidLanguage($language)
{
return preg_match('/^[a-z]{2}(_[A-Z]{2})?/', $language) === 1;
}
/**
* Get the list of available languages for Shaarli.
*
* @return array List of available languages, with their label.
*/
public static function getAvailableLanguages()
{
return [
'auto' => t('Automatic'),
'en' => t('English'),
'fr' => t('French'),
];
}
}
|
