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97 lines
2.7 KiB
97 lines
2.7 KiB
<?php |
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/** |
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* @link http://www.yiiframework.com/ |
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* @copyright Copyright (c) 2008 Yii Software LLC |
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* @license http://www.yiiframework.com/license/ |
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*/ |
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namespace yii\i18n; |
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use Yii; |
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/** |
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* GettextPoFile represents a PO Gettext message file. |
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* |
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* @author Qiang Xue <qiang.xue@gmail.com> |
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* @since 2.0 |
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*/ |
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class GettextPoFile extends GettextFile |
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{ |
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/** |
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* Loads messages from a PO file. |
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* @param string $filePath file path |
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* @param string $context message context |
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* @return array message translations. Array keys are source messages and array values are translated messages: |
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* source message => translated message. |
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*/ |
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public function load($filePath, $context) |
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{ |
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$pattern = '/(msgctxt\s+"(.*?(?<!\\\\))")?\s+' // context |
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. 'msgid\s+((?:".*(?<!\\\\)"\s*)+)\s+' // message ID, i.e. original string |
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. 'msgstr\s+((?:".*(?<!\\\\)"\s*)+)/'; // translated string |
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$content = file_get_contents($filePath); |
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$matches = array(); |
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$matchCount = preg_match_all($pattern, $content, $matches); |
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$messages = array(); |
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for ($i = 0; $i < $matchCount; ++$i) { |
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if ($matches[2][$i] == $context) { |
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$id = $this->decode($matches[3][$i]); |
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$message = $this->decode($matches[4][$i]); |
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$messages[$id] = $message; |
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} |
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} |
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return $messages; |
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} |
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/** |
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* Saves messages to a PO file. |
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* @param string $filePath file path |
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* @param array $messages message translations. Array keys are source messages and array values are |
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* translated messages: source message => translated message. Note if the message has a context, |
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* the message ID must be prefixed with the context with chr(4) as the separator. |
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*/ |
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public function save($filePath, $messages) |
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{ |
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$content = ''; |
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foreach ($messages as $id => $message) { |
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$separatorPosition = strpos($id, chr(4)); |
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if ($separatorPosition !== false) { |
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$content .= 'msgctxt "' . substr($id, 0, $separatorPosition) . "\"\n"; |
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$id = substr($id, $separatorPosition + 1); |
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} |
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$content .= 'msgid "' . $this->encode($id) . "\"\n"; |
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$content .= 'msgstr "' . $this->encode($message) . "\"\n\n"; |
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} |
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file_put_contents($filePath, $content); |
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} |
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/** |
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* Encodes special characters in a message. |
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* @param string $string message to be encoded |
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* @return string the encoded message |
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*/ |
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protected function encode($string) |
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{ |
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return str_replace( |
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array('"', "\n", "\t", "\r"), |
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array('\\"', '\\n', '\\t', '\\r'), |
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$string |
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); |
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} |
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/** |
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* Decodes special characters in a message. |
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* @param string $string message to be decoded |
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* @return string the decoded message |
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*/ |
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protected function decode($string) |
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{ |
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$string = preg_replace( |
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array('/"\s+"/', '/\\\\n/', '/\\\\r/', '/\\\\t/', '/\\\\"/'), |
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array('', "\n", "\r", "\t", '"'), |
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$string |
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); |
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return substr(rtrim($string), 1, -1); |
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} |
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}
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