Файл: vendor/intervention/gif/src/Decoders/HeaderDecoder.php
Строк: 38
<?php
declare(strict_types=1);
namespace InterventionGifDecoders;
use InterventionGifExceptionsDecoderException;
use InterventionGifBlocksHeader;
class HeaderDecoder extends AbstractDecoder
{
/**
* Decode current sourc
*
* @throws DecoderException
* @return Header
*/
public function decode(): Header
{
$header = new Header();
$header->setVersion($this->decodeVersion());
return $header;
}
/**
* Decode version string
*
* @throws DecoderException
* @return string
*/
protected function decodeVersion(): string
{
$parsed = (bool) preg_match("/^GIF(?P<version>[0-9]{2}[a-z])$/", $this->getNextBytes(6), $matches);
if ($parsed === false) {
throw new DecoderException('Unable to parse file header.');
}
return $matches['version'];
}
}