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<?php
/**
* This file is part of Railt package.
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
declare(strict_types=1);
namespace Railt\Lexer;
use Parle\Lexer as Parle;
use Railt\Lexer\Driver\NativeRegex;
use Railt\Lexer\Driver\ParleLexer;
* The `Factory` class exists as a convenient way to
* pick the best available lexer implementation.
final class Factory
{
* Creates a new lexer instance
* ```php
* $lexer = Railt\Lexer\Factory::create();
* ```
* This method always returns an instance implementing `LexerInterface` interface,
* the actual lexer implementation is an implementation detail.
* This method should usually only be called once at the beginning of the program.
* @param array $tokens
* @param array $skip
* @return LexerInterface
* @throws Exception\BadLexemeException
public static function create(array $tokens = [], array $skip = []): LexerInterface
if (\class_exists(Parle::class, false)) {
return new ParleLexer($tokens, $skip);
}
return new NativeRegex($tokens, $skip);
// @codeCoverageIgnoreEnd
railt /
lexer
