1 files changed, 183 insertions, 0 deletions
diff --git a/lib/phptal/PHPTAL/GetTextTranslator.php b/lib/phptal/PHPTAL/GetTextTranslator.php
new file mode 100644
index 0000000..108e8f5
--- /dev/null
+++ b/lib/phptal/PHPTAL/GetTextTranslator.php
@@ -0,0 +1,183 @@
+<?php
+/**
+ * PHPTAL templating engine
+ *
+ * PHP Version 5
+ *
+ * @category HTML
+ * @package  PHPTAL
+ * @author   Laurent Bedubourg <lbedubourg@motion-twin.com>
+ * @author   Kornel Lesiński <kornel@aardvarkmedia.co.uk>
+ * @license  http://www.gnu.org/licenses/lgpl.html GNU Lesser General Public License
+ * @version  SVN: $Id$
+ * @link     http://phptal.org/
+ */
+
+
+/**
+ * PHPTAL_TranslationService gettext implementation.
+ *
+ * Because gettext is the most common translation library in use, this
+ * implementation is shipped with the PHPTAL library.
+ *
+ * Please refer to the PHPTAL documentation for usage examples.
+ *
+ * @package PHPTAL
+ * @author Laurent Bedubourg <lbedubourg@motion-twin.com>
+ */
+class PHPTAL_GetTextTranslator implements PHPTAL_TranslationService
+{
+    private $_vars = array();
+    private $_currentDomain;
+    private $_encoding = 'UTF-8';
+    private $_canonicalize = false;
+
+    public function __construct()
+    {
+        if (!function_exists('gettext')) throw new PHPTAL_ConfigurationException("Gettext not installed");
+        $this->useDomain("messages"); // PHP bug #21965
+    }
+
+    /**
+     * set encoding that is used by template and is expected from gettext
+     * the default is UTF-8
+     *
+     * @param string $enc encoding name
+     */
+    public function setEncoding($enc)
+    {
+        $this->_encoding = $enc;
+    }
+
+    /**
+     * if true, all non-ASCII characters in keys will be converted to C<xxx> form. This impacts performance.
+     * by default keys will be passed to gettext unmodified.
+     *
+     * This function is only for backwards compatibility
+     *
+     * @param bool $bool enable old behavior
+     */
+    public function setCanonicalize($bool)
+    {
+        $this->_canonicalize = $bool;
+    }
+
+    /**
+     * It expects locale names as arguments.
+     * Choses first one that works.
+     *
+     * setLanguage("en_US.utf8","en_US","en_GB","en")
+     *
+     * @return string - chosen language
+     */
+    public function setLanguage(/*...*/)
+    {
+        $langs = func_get_args();
+
+        $langCode = $this->trySettingLanguages(LC_ALL, $langs);
+        if ($langCode) return $langCode;
+
+        if (defined("LC_MESSAGES")) {
+            $langCode = $this->trySettingLanguages(LC_MESSAGES, $langs);
+            if ($langCode) return $langCode;
+        }
+
+        throw new PHPTAL_ConfigurationException('Language(s) code(s) "'.implode(', ', $langs).'" not supported by your system');
+    }
+
+    private function trySettingLanguages($category, array $langs)
+    {
+        foreach ($langs as $langCode) {
+            putenv("LANG=$langCode");
+            putenv("LC_ALL=$langCode");
+            putenv("LANGUAGE=$langCode");
+            if (setlocale($category, $langCode)) {
+                return $langCode;
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Adds translation domain (usually it's the same as name of .po file [without extension])
+     *
+     * Encoding must be set before calling addDomain!
+     */
+    public function addDomain($domain, $path='./locale/')
+    {
+        bindtextdomain($domain, $path);
+        if ($this->_encoding) {
+            bind_textdomain_codeset($domain, $this->_encoding);
+        }
+        $this->useDomain($domain);
+    }
+
+    /**
+     * Switches to one of the domains previously set via addDomain()
+     *
+     * @param string $domain name of translation domain to be used.
+     *
+     * @return string - old domain
+     */
+    public function useDomain($domain)
+    {
+        $old = $this->_currentDomain;
+        $this->_currentDomain = $domain;
+        textdomain($domain);
+        return $old;
+    }
+
+    /**
+     * used by generated PHP code. Don't use directly.
+     */
+    public function setVar($key, $value)
+    {
+        $this->_vars[$key] = $value;
+    }
+
+    /**
+     * translate given key.
+     *
+     * @param bool $htmlencode if true, output will be HTML-escaped.
+     */
+    public function translate($key, $htmlencode=true)
+    {
+        if ($this->_canonicalize) $key = self::_canonicalizeKey($key);
+
+        $value = gettext($key);
+
+        if ($htmlencode) {
+            $value = htmlspecialchars($value, ENT_QUOTES, $this->_encoding);
+        }
+        while (preg_match('/\${(.*?)\}/sm', $value, $m)) {
+            list($src, $var) = $m;
+            if (!array_key_exists($var, $this->_vars)) {
+                throw new PHPTAL_VariableNotFoundException('Interpolation error. Translation uses ${'.$var.'}, which is not defined in the template (via i18n:name)');
+            }
+            $value = str_replace($src, $this->_vars[$var], $value);
+        }
+        return $value;
+    }
+
+    /**
+     * For backwards compatibility only.
+     */
+    private static function _canonicalizeKey($key_)
+    {
+        $result = "";
+        $key_ = trim($key_);
+        $key_ = str_replace("\n", "", $key_);
+        $key_ = str_replace("\r", "", $key_);
+        for ($i = 0; $i<strlen($key_); $i++) {
+            $c = $key_[$i];
+            $o = ord($c);
+            if ($o < 5 || $o > 127) {
+                $result .= 'C<'.$o.'>';
+            } else {
+                $result .= $c;
+            }
+        }
+        return $result;
+    }
+}
+