init

vendor/yiisoft/yii2/i18n/GettextPoFile.php

@@ -0,0 +1,113 @@
+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\i18n;
+
+use Yii;
+
+/**
+ * GettextPoFile represents a PO Gettext message file.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @since 2.0
+ */
+class GettextPoFile extends GettextFile
+{
+    /**
+     * Loads messages from a PO file.
+     * @param string $filePath file path
+     * @param string $context message context
+     * @return array message translations. Array keys are source messages and array values are translated messages:
+     * source message => translated message.
+     */
+    public function load($filePath, $context)
+    {
+        $pattern = '/(msgctxt\s+"(.*?(?<!\\\\))")?\s+' // context
+            . 'msgid\s+((?:".*(?<!\\\\)"\s*)+)\s+' // message ID, i.e. original string
+            . 'msgstr\s+((?:".*(?<!\\\\)"\s*)+)/'; // translated string
+        $content = file_get_contents($filePath);
+        $matches = [];
+        $matchCount = preg_match_all($pattern, $content, $matches);
+
+        $messages = [];
+        for ($i = 0; $i < $matchCount; ++$i) {
+            if ($matches[2][$i] === $context) {
+                $id = $this->decode($matches[3][$i]);
+                $message = $this->decode($matches[4][$i]);
+                $messages[$id] = $message;
+            }
+        }
+
+        return $messages;
+    }
+
+    /**
+     * Saves messages to a PO file.
+     * @param string $filePath file path
+     * @param array $messages message translations. Array keys are source messages and array values are
+     * translated messages: source message => translated message. Note if the message has a context,
+     * the message ID must be prefixed with the context with chr(4) as the separator.
+     */
+    public function save($filePath, $messages)
+    {
+        $language = str_replace('-', '_', basename(dirname($filePath)));
+        $headers = [
+            'msgid ""',
+            'msgstr ""',
+            '"Project-Id-Version: \n"',
+            '"POT-Creation-Date: \n"',
+            '"PO-Revision-Date: \n"',
+            '"Last-Translator: \n"',
+            '"Language-Team: \n"',
+            '"Language: ' . $language . '\n"',
+            '"MIME-Version: 1.0\n"',
+            '"Content-Type: text/plain; charset=' . Yii::$app->charset . '\n"',
+            '"Content-Transfer-Encoding: 8bit\n"',
+        ];
+        $content = implode("\n", $headers) . "\n\n";
+        foreach ($messages as $id => $message) {
+            $separatorPosition = strpos($id, chr(4));
+            if ($separatorPosition !== false) {
+                $content .= 'msgctxt "' . substr($id, 0, $separatorPosition) . "\"\n";
+                $id = substr($id, $separatorPosition + 1);
+            }
+            $content .= 'msgid "' . $this->encode($id) . "\"\n";
+            $content .= 'msgstr "' . $this->encode($message) . "\"\n\n";
+        }
+        file_put_contents($filePath, $content);
+    }
+
+    /**
+     * Encodes special characters in a message.
+     * @param string $string message to be encoded
+     * @return string the encoded message
+     */
+    protected function encode($string)
+    {
+        return str_replace(
+            ['"', "\n", "\t", "\r"],
+            ['\\"', '\\n', '\\t', '\\r'],
+            $string
+        );
+    }
+
+    /**
+     * Decodes special characters in a message.
+     * @param string $string message to be decoded
+     * @return string the decoded message
+     */
+    protected function decode($string)
+    {
+        $string = preg_replace(
+            ['/"\s+"/', '/\\\\n/', '/\\\\r/', '/\\\\t/', '/\\\\"/'],
+            ['', "\n", "\r", "\t", '"'],
+            $string
+        );
+
+        return substr(rtrim($string), 1, -1);
+    }
+}