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<?php
/*
* This file is part of PHPUnit.
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace PHPUnit\Framework\Constraint;
/**
* Constraint that asserts that the string it is evaluated for matches
* a regular expression.
*
* Checks a given value using the Perl Compatible Regular Expression extension
* in PHP. The pattern is matched by executing preg_match().
*
* The pattern string passed in the constructor.
*/
class RegularExpression extends Constraint
{
/**
* @var string
*/
protected $pattern;
/**
* @param string $pattern
*/
public function __construct($pattern)
{
parent::__construct();
$this->pattern = $pattern;
}
/**
* Evaluates the constraint for parameter $other. Returns true if the
* constraint is met, false otherwise.
*
* @param mixed $other Value or object to evaluate.
*
* @return bool
*/
protected function matches($other)
{
return \preg_match($this->pattern, $other) > 0;
}
/**
* Returns a string representation of the constraint.
*
* @return string
*/
public function toString()
{
return \sprintf(
'matches PCRE pattern "%s"',
$this->pattern
);
}
}
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