public function testCharRange()
{
$this->assertEquals('[a-z]', Charset::create()->charRange('a', 'z'));
$this->assertEquals('[a-z0-9_\\-\\+]', Regex::create()->chars(Charset::create()->chars('a..z0..9_-+')));
}
private function checkRegex(RegularExpression $regex)
{
$errors = [];
$errorHandler = set_error_handler(function ($errno, $errstr) use(&$errors) {
$errors[] = $errstr;
}, E_WARNING);
if (!$regex instanceof Regex) {
$regex = new Regex([$regex]);
}
$code = @preg_match($regex->getRegex(), '');
set_error_handler($errorHandler);
if ($errors) {
$msg = 'Regex ' . $regex . ': ' . trim(end(explode(':', $errors[0], 3)));
throw new Exception($msg);
}
return $errors;
}
