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vendor/symfony/translation/Dumper/MoFileDumper.php

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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\Loader\MoFileLoader;
+use Symfony\Component\Translation\MessageCatalogue;
+
+/**
+ * MoFileDumper generates a gettext formatted string representation of a message catalogue.
+ *
+ * @author Stealth35
+ */
+class MoFileDumper extends FileDumper
+{
+    public function formatCatalogue(MessageCatalogue $messages, string $domain, array $options = []): string
+    {
+        $sources = $targets = $sourceOffsets = $targetOffsets = '';
+        $offsets = [];
+        $size = 0;
+
+        foreach ($messages->all($domain) as $source => $target) {
+            $offsets[] = array_map('strlen', [$sources, $source, $targets, $target]);
+            $sources .= "\0".$source;
+            $targets .= "\0".$target;
+            ++$size;
+        }
+
+        $header = [
+            '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);
+        }
+
+        $output = implode('', array_map($this->writeLong(...), $header))
+               .$sourceOffsets
+               .$targetOffsets
+               .$sources
+               .$targets
+        ;
+
+        return $output;
+    }
+
+    protected function getExtension(): string
+    {
+        return 'mo';
+    }
+
+    private function writeLong(mixed $str): string
+    {
+        return pack('V*', $str);
+    }
+}