Add option for DeepL to ignore certain substrings matched by regex about potrans HOT 5 CLOSED

<?php

namespace potrans\translator;

use Gettext\Translation;

class DeepLTranslator extends TranslatorAbstract {

	private \DeepL\Translator $translator;

	public function __construct(\DeepL\Translator $translator) {
		$this->translator = $translator;
	}

	/**
	 * @throws \DeepL\DeepLException
	 */
	public function getTranslation(Translation $sentence): string {
		$response = $this->translator->translateText(
			preg_replace('/\$([^$]+)\$/i', '<keep>$1</keep>', $sentence->getOriginal()),
			$this->from,
			$this->to,
			[
				'tag_handling' => 'xml',
				'ignore_tags' => 'keep',
			]
		);
		
		return preg_replace('/<\/?keep>/i', '$', $response->text);
	}
}