<?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\Loader;

use Symfony\Component\Config\Resource\FileResource;

/**

 * CsvFileLoader loads translations from CSV files.

 *

 * @author Saša Stamenković <umpirsky@gmail.com>

 *

 * @api

 */

class CsvFileLoader extends ArrayLoader implements LoaderInterface

{

    private $delimiter = ';';

    private $enclosure = '"';

    private $escape    = '\\';

    /**

     * {@inheritdoc}

     *

     * @api

     */

    public function load($resource, $locale, $domain = 'messages')

    {

        $messages = array();

        try {

            $file = new \SplFileObject($resource, 'rb');

        } catch(\RuntimeException $e) {

            throw new \InvalidArgumentException(sprintf('Error opening file "%s".', $resource));

        }

        $file->setFlags(\SplFileObject::READ_CSV | \SplFileObject::SKIP_EMPTY);

        $file->setCsvControl($this->delimiter, $this->enclosure, $this->escape);

        foreach($file as $data) {

            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;

    }

    /**

     * Sets the delimiter, enclosure, and escape character for CSV.

     *

     * @param string $delimiter delimiter character

     * @param string $enclosure enclosure character

     * @param string $escape    escape character

     */

    public function setCsvControl($delimiter = ';', $enclosure = '"', $escape = '\\')

    {

        $this->delimiter = $delimiter;

        $this->enclosure = $enclosure;

        $this->escape    = $escape;

    }

}