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<?php |
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declare(strict_types=1); |
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namespace PhpMyAdmin\MoTranslator; |
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use PhpMyAdmin\MoTranslator\Cache\CacheInterface; |
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use function is_readable; |
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use function strcmp; |
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final class MoParser |
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{ |
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/** |
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* None error. |
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*/ |
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public const ERROR_NONE = 0; |
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/** |
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* File does not exist. |
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*/ |
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public const ERROR_DOES_NOT_EXIST = 1; |
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/** |
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* File has bad magic number. |
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*/ |
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public const ERROR_BAD_MAGIC = 2; |
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/** |
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* Error while reading file, probably too short. |
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*/ |
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public const ERROR_READING = 3; |
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/** |
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* Big endian mo file magic bytes. |
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*/ |
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public const MAGIC_BE = "\x95\x04\x12\xde"; |
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/** |
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* Little endian mo file magic bytes. |
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*/ |
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public const MAGIC_LE = "\xde\x12\x04\x95"; |
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/** |
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* Parse error code (0 if no error). |
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* |
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* @var int |
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*/ |
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public $error = self::ERROR_NONE; |
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/** @var string|null */ |
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private $filename; |
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public function __construct(?string $filename) |
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{ |
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$this->filename = $filename; |
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} |
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/** |
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* Parses .mo file and stores results to `$cache` |
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*/ |
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public function parseIntoCache(CacheInterface $cache): void |
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{ |
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if ($this->filename === null) { |
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return; |
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} |
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if (! is_readable($this->filename)) { |
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$this->error = self::ERROR_DOES_NOT_EXIST; |
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return; |
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} |
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$stream = new StringReader($this->filename); |
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try { |
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$magic = $stream->read(0, 4); |
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if (strcmp($magic, self::MAGIC_LE) === 0) { |
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$unpack = 'V'; |
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} elseif (strcmp($magic, self::MAGIC_BE) === 0) { |
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$unpack = 'N'; |
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} else { |
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$this->error = self::ERROR_BAD_MAGIC; |
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return; |
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} |
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/* Parse header */ |
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$total = $stream->readint($unpack, 8); |
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$originals = $stream->readint($unpack, 12); |
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$translations = $stream->readint($unpack, 16); |
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/* get original and translations tables */ |
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$totalTimesTwo = (int) ($total * 2);// Fix for issue #36 on ARM |
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$tableOriginals = $stream->readintarray($unpack, $originals, $totalTimesTwo); |
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$tableTranslations = $stream->readintarray($unpack, $translations, $totalTimesTwo); |
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/* read all strings to the cache */ |
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for ($i = 0; $i < $total; ++$i) { |
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$iTimesTwo = $i * 2; |
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$iPlusOne = $iTimesTwo + 1; |
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$iPlusTwo = $iTimesTwo + 2; |
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$original = $stream->read($tableOriginals[$iPlusTwo], $tableOriginals[$iPlusOne]); |
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$translation = $stream->read($tableTranslations[$iPlusTwo], $tableTranslations[$iPlusOne]); |
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$cache->set($original, $translation); |
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} |
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} catch (ReaderException $e) { |
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$this->error = self::ERROR_READING; |
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return; |
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} |
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} |
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} |
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phpmyadmin /
motranslator
