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<?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;
use Symfony\Component\Translation\Loader\MoFileLoader;
/**
* MoFileDumper generates a gettext formatted string representation of a message catalogue.
*
* @author Stealth35
*/
class MoFileDumper extends FileDumper
{
/**
* {@inheritdoc}
*/
public function formatCatalogue(MessageCatalogue $messages, $domain, array $options = array())
{
$sources = $targets = $sourceOffsets = $targetOffsets = '';
$offsets = array();
$size = 0;
foreach ($messages->all($domain) as $source => $target) {
$offsets[] = array_map('strlen', array($sources, $source, $targets, $target));
$sources .= "\0".$source;
$targets .= "\0".$target;
++$size;
}
$header = array(
'magicNumber' => MoFileLoader::MO_LITTLE_ENDIAN_MAGIC,
'formatRevision' => 0,
'count' => $size,
'offsetId' => MoFileLoader::MO_HEADER_SIZE,
'offsetTranslated' => MoFileLoader::MO_HEADER_SIZE + (8 * $size),
'sizeHashes' => 0,
'offsetHashes' => MoFileLoader::MO_HEADER_SIZE + (16 * $size),
);
$sourcesSize = strlen($sources);
$sourcesStart = $header['offsetHashes'] + 1;
foreach ($offsets as $offset) {
$sourceOffsets .= $this->writeLong($offset[1])
.$this->writeLong($offset[0] + $sourcesStart);
$targetOffsets .= $this->writeLong($offset[3])
.$this->writeLong($offset[2] + $sourcesStart + $sourcesSize);
}
$output = implode(array_map(array($this, 'writeLong'), $header))
.$sourceOffsets
.$targetOffsets
.$sources
.$targets
;
return $output;
}
/**
* {@inheritdoc}
*/
protected function getExtension()
{
return 'mo';
}
private function writeLong($str)
{
return pack('V*', $str);
}
}