Dateien nach "includes/PHPExcel/Classes/PHPExcel/Calculation/Token" hochladen

includes/PHPExcel/Classes/PHPExcel/Calculation/Token/Stack.php

@@ -0,0 +1,115 @@
+<?php
+/**
+ * PHPExcel
+ *
+ * Copyright (c) 2006 - 2014 PHPExcel
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * @category   PHPExcel
+ * @package    PHPExcel_Calculation
+ * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
+ * @license	http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
+ * @version	##VERSION##, ##DATE##
+ */
+
+
+/**
+ * PHPExcel_Calculation_Token_Stack
+ *
+ * @category	PHPExcel_Calculation_Token_Stack
+ * @package		PHPExcel_Calculation
+ * @copyright	Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
+ */
+class PHPExcel_Calculation_Token_Stack {
+
+	/**
+	 *  The parser stack for formulae
+	 *
+	 *  @var mixed[]
+	 */
+	private $_stack = array();
+
+	/**
+	 *  Count of entries in the parser stack
+	 *
+	 *  @var integer
+	 */
+	private $_count = 0;
+
+
+	/**
+	 * Return the number of entries on the stack
+	 *
+	 * @return  integer
+	 */
+	public function count() {
+		return $this->_count;
+	}	//	function count()
+
+	/**
+	 * Push a new entry onto the stack
+	 *
+	 * @param  mixed  $type
+	 * @param  mixed  $value
+	 * @param  mixed  $reference
+	 */
+	public function push($type, $value, $reference = NULL) {
+		$this->_stack[$this->_count++] = array('type'		=> $type,
+											   'value'		=> $value,
+											   'reference'	=> $reference
+											  );
+		if ($type == 'Function') {
+			$localeFunction = PHPExcel_Calculation::_localeFunc($value);
+			if ($localeFunction != $value) {
+				$this->_stack[($this->_count - 1)]['localeValue'] = $localeFunction;
+			}
+		}
+	}	//	function push()
+
+	/**
+	 * Pop the last entry from the stack
+	 *
+	 * @return  mixed
+	 */
+	public function pop() {
+		if ($this->_count > 0) {
+			return $this->_stack[--$this->_count];
+		}
+		return NULL;
+	}	//	function pop()
+
+	/**
+	 * Return an entry from the stack without removing it
+	 *
+	 * @param   integer  $n  number indicating how far back in the stack we want to look
+	 * @return  mixed
+	 */
+	public function last($n = 1) {
+		if ($this->_count - $n < 0) {
+			return NULL;
+		}
+		return $this->_stack[$this->_count - $n];
+	}	//	function last()
+
+	/**
+	 * Clear the stack
+	 */
+	function clear() {
+		$this->_stack = array();
+		$this->_count = 0;
+	}
+
+}	//	class PHPExcel_Calculation_Token_Stack