[Translation] Add IcuResFileDumper

src/Symfony/Component/Translation/Dumper/IcuResFileDumper.php

@@ -0,0 +1,135 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Translation\Dumper;
+
+use Symfony\Component\Translation\MessageCatalogue;
+
+/**
+ * IcuResDumper generates a ICU ResssourceBundle formated string representation of a message catalogue.
+ *
+ * @author Stealth35
+ */
+class IcuResFileDumper implements DumperInterface
+{
+    /**
+     * {@inheritDoc}
+     */
+    public function dump(MessageCatalogue $messages, $options = array())
+    {
+        if (!array_key_exists('path', $options)) {
+            throw new \InvalidArgumentException('The file dumper need a path options.');
+        }
+
+        // save a file for each domain
+        foreach ($messages->getDomains() as $domain) {
+            $file = $messages->getLocale().'.'.$this->getExtension();
+            $path = $options['path'].'/'.$domain.'/';
+
+            if (!file_exists($path)) {
+                mkdir($path);
+            }
+
+            // backup
+            if (file_exists($path.$file)) {
+                copy($path.$file, $path.$file.'~');
+            }
+
+            // save file
+            file_put_contents($path.$file, $this->format($messages, $domain));
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function format(MessageCatalogue $messages, $domain = 'messages')
+    {
+        $data = $indexes = $resources = '';
+
+        foreach ($messages->all($domain) as $source => $target) {
+            $indexes .= pack('v', strlen($data) + 28);
+            $data    .= $source."\0";
+        }
+
+        $data .= $this->writePadding($data);
+
+        $keyTop = $this->getPosition($data);
+
+        foreach ($messages->all($domain) as $source => $target) {
+            $resources .= pack('V', $this->getPosition($data));
+
+            $data .= pack('V', strlen($target))
+                  .  mb_convert_encoding($target."\0", 'UTF-16LE', 'UTF-8')
+                  .  $this->writePadding($data)
+                  ;
+        }
+
+        $resOffset = $this->getPosition($data);
+
+        $data .= pack('v', count($messages))
+              .  $indexes
+              .  $this->writePadding($data)
+              .  $resources
+              ;
+
+        $bundleTop = $this->getPosition($data);
+
+        $root = pack('V7',
+            $resOffset + (2 << 28), // Resource Offset + Resource Type
+            6,                      // Index length
+            $keyTop,                // Index keys top
+            $bundleTop,             // Index resources top
+            $bundleTop,             // Index bundle top
+            count($messages),       // Index max table length
+            0                       // Index attributes
+        );
+
+        $header = pack('vC2v4C12@32',
+            32,                     // Header size
+            0xDA, 0x27,             // Magic number 1 and 2
+            20, 0, 0, 2,            // Rest of the header, ..., Size of a char
+            0x52, 0x65, 0x73, 0x42, // Data format identifier
+            1, 2, 0, 0,             // Data version
+            1, 4, 0, 0              // Unicode version
+        );
+
+        $output = $header
+                . $root
+                . $data;
+
+        return $output;
+    }
+
+    private function writePadding($data)
+    {
+        $padding = strlen($data) % 4;
+
+        if ($padding ) {
+            return str_repeat("\xAA", 4 - $padding);
+        }
+    }
+
+    private function getPosition($data)
+    {
+        $position = (strlen($data) + 28) / 4;
+
+        return $position;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function getExtension()
+    {
+        return 'res';
+    }
+}

tests/Symfony/Tests/Component/Translation/Dumper/IcuResFileDumperTest.php

@@ -0,0 +1,33 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Tests\Component\Translation\Dumper;
+
+use Symfony\Component\Translation\MessageCatalogue;
+use Symfony\Component\Translation\Dumper\IcuResFileDumper;
+
+class IcuResFileDumperTest extends \PHPUnit_Framework_TestCase
+{
+    public function testDump()
+    {
+        $catalogue = new MessageCatalogue('en');
+        $catalogue->add(array('foo' => 'bar'));
+
+        $tempDir = sys_get_temp_dir();
+        $dumper = new IcuResFileDumper();
+        $dumperString = $dumper->dump($catalogue, array('path' => $tempDir));
+
+        $this->assertEquals(file_get_contents(__DIR__.'/../fixtures/resourcebundle/res/en.res'), file_get_contents($tempDir.'/messages/en.res'));
+
+        unlink($tempDir.'/messages/en.res');
+        rmdir($tempDir.'/messages');
+    }
+}