diff options
Diffstat (limited to 'src/NXP/Classes/Token/TokenMinus.php')
-rw-r--r-- | src/NXP/Classes/Token/TokenMinus.php | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/src/NXP/Classes/Token/TokenMinus.php b/src/NXP/Classes/Token/TokenMinus.php deleted file mode 100644 index b4b04e3..0000000 --- a/src/NXP/Classes/Token/TokenMinus.php +++ /dev/null @@ -1,68 +0,0 @@ -<?php -/** -* This file is part of the MathExecutor package -* -* (c) Alexander Kiryukhin -* -* For the full copyright and license information, please view the LICENSE -* file that was distributed with this source code -*/ - -namespace NXP\Classes\Token; - -use NXP\Exception\IncorrectExpressionException; - -/** -* @author Alexander Kiryukhin <a.kiryukhin@mail.ru> -*/ -class TokenMinus extends AbstractOperator -{ - /** - * @return string - */ - public static function getRegex() - { - return '\-'; - } - - /** - * @return int - */ - public function getPriority() - { - return 170; - } - - /** - * @return string - */ - public function getAssociation() - { - return self::LEFT_ASSOC; - } - - /** - * @param InterfaceToken[] $stack - * - * @return $this - * - * @throws \NXP\Exception\IncorrectExpressionException - */ - public function execute(&$stack) - { - $op2 = array_pop($stack); - $op1 = array_pop($stack); - - if ($op2 === null) { - throw new IncorrectExpressionException("Subtraction requires right operator"); - } - - if (!$op1) { - $op1 = new TokenNumber(0); - } - - $result = $op1->getValue() - $op2->getValue(); - - return new TokenNumber($result); - } -} |