[Translation] Added CsvFileLoader to support csv translation resources.

src/Symfony/Component/Translation/Loader/CsvFileLoader.php

@@ -0,0 +1,55 @@
+<?php
+
+namespace Symfony\Component\Translation\Loader;
+
+use Symfony\Component\Translation\Resource\FileResource;
+
+/*
+ * This file is part of the Symfony framework.
+ *
+ * (c) Fabien Potencier <fabien.potencier@symfony-project.com>
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+/**
+ * CsvFileLoader loads translations from CSV files.
+ *
+ * @author Saša Stamenković <umpirsky@gmail.com>
+ */
+class CsvFileLoader extends ArrayLoader implements LoaderInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function load($resource, $locale, $domain = 'messages')
+    {
+        $messages = array();
+        $file = @fopen($resource, 'rb');
+        if (!$file) {
+            throw new \InvalidArgumentException(sprintf('Error opening file "%s".', $resource));
+        }
+
+        while(($data = fgetcsv($file, 0, ';')) !== false) {
+            if (substr($data[0], 0, 1) === '#') {
+                continue;
+            }
+
+            if (!isset($data[1])) {
+                continue;
+            }
+
+            if (count($data) == 2) {
+                $messages[$data[0]] = $data[1];
+            } else {
+                 continue;
+            }
+        }
+
+        $catalogue = parent::load($messages, $locale, $domain);
+        $catalogue->addResource(new FileResource($resource));
+
+        return $catalogue;
+    }
+}

tests/Symfony/Tests/Component/Translation/Loader/CsvFileLoaderTest.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien.potencier@symfony-project.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\Loader;
+
+use Symfony\Component\Translation\Loader\CsvFileLoader;
+use Symfony\Component\Translation\Resource\FileResource;
+
+class CsvFileLoaderTest extends \PHPUnit_Framework_TestCase
+{
+    public function testLoad()
+    {
+        $loader = new CsvFileLoader();
+        $resource = __DIR__.'/../fixtures/resources.csv';
+        $catalogue = $loader->load($resource, 'en', 'domain1');
+
+        $this->assertEquals(array('foo' => 'bar'), $catalogue->all('domain1'));
+        $this->assertEquals('en', $catalogue->getLocale());
+        $this->assertEquals(array(new FileResource($resource)), $catalogue->getResources());
+    }
+
+    public function testLoadDoesNothingIfEmpty()
+    {
+        $loader = new CsvFileLoader();
+        $resource = __DIR__.'/../fixtures/empty.csv';
+        $catalogue = $loader->load($resource, 'en', 'domain1');
+
+        $this->assertEquals(array(), $catalogue->all('domain1'));
+        $this->assertEquals('en', $catalogue->getLocale());
+        $this->assertEquals(array(new FileResource($resource)), $catalogue->getResources());
+    }
+}

tests/Symfony/Tests/Component/Translation/fixtures/resources.csv

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+"foo"; "bar"