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

includes/PHPExcel/Classes/PHPExcel/Calculation/Database.php

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+<?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 root directory */
+if (!defined('PHPEXCEL_ROOT')) {
+	/**
+	 * @ignore
+	 */
+	define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../');
+	require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');
+}
+
+
+/**
+ * PHPExcel_Calculation_Database
+ *
+ * @category	PHPExcel
+ * @package		PHPExcel_Calculation
+ * @copyright	Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
+ */
+class PHPExcel_Calculation_Database {
+
+
+	/**
+	 * __fieldExtract
+	 *
+	 * Extracts the column ID to use for the data field.
+	 *
+	 * @access	private
+	 * @param	mixed[]		$database		The range of cells that makes up the list or database.
+	 *										A database is a list of related data in which rows of related
+	 *										information are records, and columns of data are fields. The
+	 *										first row of the list contains labels for each column.
+	 * @param	mixed		$field			Indicates which column is used in the function. Enter the
+	 *										column label enclosed between double quotation marks, such as
+	 *										"Age" or "Yield," or a number (without quotation marks) that
+	 *										represents the position of the column within the list: 1 for
+	 *										the first column, 2 for the second column, and so on.
+	 * @return	string|NULL
+	 *
+	 */
+	private static function __fieldExtract($database,$field) {
+		$field = strtoupper(PHPExcel_Calculation_Functions::flattenSingleValue($field));
+		$fieldNames = array_map('strtoupper',array_shift($database));
+
+		if (is_numeric($field)) {
+			$keys = array_keys($fieldNames);
+			return $keys[$field-1];
+		}
+		$key = array_search($field,$fieldNames);
+		return ($key) ? $key : NULL;
+	}
+
+	/**
+	 * __filter
+	 *
+	 * Parses the selection criteria, extracts the database rows that match those criteria, and
+	 * returns that subset of rows.
+	 *
+	 * @access	private
+	 * @param	mixed[]		$database		The range of cells that makes up the list or database.
+	 *										A database is a list of related data in which rows of related
+	 *										information are records, and columns of data are fields. The
+	 *										first row of the list contains labels for each column.
+	 * @param	mixed[]		$criteria		The range of cells that contains the conditions you specify.
+	 *										You can use any range for the criteria argument, as long as it
+	 *										includes at least one column label and at least one cell below
+	 *										the column label in which you specify a condition for the
+	 *										column.
+	 * @return	array of mixed
+	 *
+	 */
+	private static function __filter($database,$criteria) {
+		$fieldNames = array_shift($database);
+		$criteriaNames = array_shift($criteria);
+
+		//	Convert the criteria into a set of AND/OR conditions with [:placeholders]
+		$testConditions = $testValues = array();
+		$testConditionsCount = 0;
+		foreach($criteriaNames as $key => $criteriaName) {
+			$testCondition = array();
+			$testConditionCount = 0;
+			foreach($criteria as $row => $criterion) {
+				if ($criterion[$key] > '') {
+					$testCondition[] = '[:'.$criteriaName.']'.PHPExcel_Calculation_Functions::_ifCondition($criterion[$key]);
+					$testConditionCount++;
+				}
+			}
+			if ($testConditionCount > 1) {
+				$testConditions[] = 'OR('.implode(',',$testCondition).')';
+				$testConditionsCount++;
+			} elseif($testConditionCount == 1) {
+				$testConditions[] = $testCondition[0];
+				$testConditionsCount++;
+			}
+		}
+
+		if ($testConditionsCount > 1) {
+			$testConditionSet = 'AND('.implode(',',$testConditions).')';
+		} elseif($testConditionsCount == 1) {
+			$testConditionSet = $testConditions[0];
+		}
+
+		//	Loop through each row of the database
+		foreach($database as $dataRow => $dataValues) {
+			//	Substitute actual values from the database row for our [:placeholders]
+			$testConditionList = $testConditionSet;
+			foreach($criteriaNames as $key => $criteriaName) {
+				$k = array_search($criteriaName,$fieldNames);
+				if (isset($dataValues[$k])) {
+					$dataValue = $dataValues[$k];
+					$dataValue = (is_string($dataValue)) ? PHPExcel_Calculation::_wrapResult(strtoupper($dataValue)) : $dataValue;
+					$testConditionList = str_replace('[:'.$criteriaName.']',$dataValue,$testConditionList);
+				}
+			}
+			//	evaluate the criteria against the row data
+			$result = PHPExcel_Calculation::getInstance()->_calculateFormulaValue('='.$testConditionList);
+			//	If the row failed to meet the criteria, remove it from the database
+			if (!$result) {
+				unset($database[$dataRow]);
+			}
+		}
+
+		return $database;
+	}
+
+
+	/**
+	 * DAVERAGE
+	 *
+	 * Averages the values in a column of a list or database that match conditions you specify.
+	 *
+	 * Excel Function:
+	 *		DAVERAGE(database,field,criteria)
+	 *
+	 * @access	public
+	 * @category Database Functions
+	 * @param	mixed[]			$database	The range of cells that makes up the list or database.
+	 *										A database is a list of related data in which rows of related
+	 *										information are records, and columns of data are fields. The
+	 *										first row of the list contains labels for each column.
+	 * @param	string|integer	$field		Indicates which column is used in the function. Enter the
+	 *										column label enclosed between double quotation marks, such as
+	 *										"Age" or "Yield," or a number (without quotation marks) that
+	 *										represents the position of the column within the list: 1 for
+	 *										the first column, 2 for the second column, and so on.
+	 * @param	mixed[]			$criteria	The range of cells that contains the conditions you specify.
+	 *										You can use any range for the criteria argument, as long as it
+	 *										includes at least one column label and at least one cell below
+	 *										the column label in which you specify a condition for the
+	 *										column.
+	 * @return	float
+	 *
+	 */
+	public static function DAVERAGE($database,$field,$criteria) {
+		$field = self::__fieldExtract($database,$field);
+		if (is_null($field)) {
+			return NULL;
+		}
+		//	reduce the database to a set of rows that match all the criteria
+		$database = self::__filter($database,$criteria);
+		//	extract an array of values for the requested column
+		$colData = array();
+		foreach($database as $row) {
+			$colData[] = $row[$field];
+		}
+
+		// Return
+		return PHPExcel_Calculation_Statistical::AVERAGE($colData);
+	}	//	function DAVERAGE()
+
+
+	/**
+	 * DCOUNT
+	 *
+	 * Counts the cells that contain numbers in a column of a list or database that match conditions
+	 * that you specify.
+	 *
+	 * Excel Function:
+	 *		DCOUNT(database,[field],criteria)
+	 *
+	 * Excel Function:
+	 *		DAVERAGE(database,field,criteria)
+	 *
+	 * @access	public
+	 * @category Database Functions
+	 * @param	mixed[]			$database	The range of cells that makes up the list or database.
+	 *										A database is a list of related data in which rows of related
+	 *										information are records, and columns of data are fields. The
+	 *										first row of the list contains labels for each column.
+	 * @param	string|integer	$field		Indicates which column is used in the function. Enter the
+	 *										column label enclosed between double quotation marks, such as
+	 *										"Age" or "Yield," or a number (without quotation marks) that
+	 *										represents the position of the column within the list: 1 for
+	 *										the first column, 2 for the second column, and so on.
+	 * @param	mixed[]			$criteria	The range of cells that contains the conditions you specify.
+	 *										You can use any range for the criteria argument, as long as it
+	 *										includes at least one column label and at least one cell below
+	 *										the column label in which you specify a condition for the
+	 *										column.
+	 * @return	integer
+	 *
+	 * @TODO	The field argument is optional. If field is omitted, DCOUNT counts all records in the
+	 *			database that match the criteria.
+	 *
+	 */
+	public static function DCOUNT($database,$field,$criteria) {
+		$field = self::__fieldExtract($database,$field);
+		if (is_null($field)) {
+			return NULL;
+		}
+
+		//	reduce the database to a set of rows that match all the criteria
+		$database = self::__filter($database,$criteria);
+		//	extract an array of values for the requested column
+		$colData = array();
+		foreach($database as $row) {
+			$colData[] = $row[$field];
+		}
+
+		// Return
+		return PHPExcel_Calculation_Statistical::COUNT($colData);
+	}	//	function DCOUNT()
+
+
+	/**
+	 * DCOUNTA
+	 *
+	 * Counts the nonblank cells in a column of a list or database that match conditions that you specify.
+	 *
+	 * Excel Function:
+	 *		DCOUNTA(database,[field],criteria)
+	 *
+	 * @access	public
+	 * @category Database Functions
+	 * @param	mixed[]			$database	The range of cells that makes up the list or database.
+	 *										A database is a list of related data in which rows of related
+	 *										information are records, and columns of data are fields. The
+	 *										first row of the list contains labels for each column.
+	 * @param	string|integer	$field		Indicates which column is used in the function. Enter the
+	 *										column label enclosed between double quotation marks, such as
+	 *										"Age" or "Yield," or a number (without quotation marks) that
+	 *										represents the position of the column within the list: 1 for
+	 *										the first column, 2 for the second column, and so on.
+	 * @param	mixed[]			$criteria	The range of cells that contains the conditions you specify.
+	 *										You can use any range for the criteria argument, as long as it
+	 *										includes at least one column label and at least one cell below
+	 *										the column label in which you specify a condition for the
+	 *										column.
+	 * @return	integer
+	 *
+	 * @TODO	The field argument is optional. If field is omitted, DCOUNTA counts all records in the
+	 *			database that match the criteria.
+	 *
+	 */
+	public static function DCOUNTA($database,$field,$criteria) {
+		$field = self::__fieldExtract($database,$field);
+		if (is_null($field)) {
+			return NULL;
+		}
+
+		//	reduce the database to a set of rows that match all the criteria
+		$database = self::__filter($database,$criteria);
+		//	extract an array of values for the requested column
+		$colData = array();
+		foreach($database as $row) {
+			$colData[] = $row[$field];
+		}
+
+		// Return
+		return PHPExcel_Calculation_Statistical::COUNTA($colData);
+	}	//	function DCOUNTA()
+
+
+	/**
+	 * DGET
+	 *
+	 * Extracts a single value from a column of a list or database that matches conditions that you
+	 * specify.
+	 *
+	 * Excel Function:
+	 *		DGET(database,field,criteria)
+	 *
+	 * @access	public
+	 * @category Database Functions
+	 * @param	mixed[]			$database	The range of cells that makes up the list or database.
+	 *										A database is a list of related data in which rows of related
+	 *										information are records, and columns of data are fields. The
+	 *										first row of the list contains labels for each column.
+	 * @param	string|integer	$field		Indicates which column is used in the function. Enter the
+	 *										column label enclosed between double quotation marks, such as
+	 *										"Age" or "Yield," or a number (without quotation marks) that
+	 *										represents the position of the column within the list: 1 for
+	 *										the first column, 2 for the second column, and so on.
+	 * @param	mixed[]			$criteria	The range of cells that contains the conditions you specify.
+	 *										You can use any range for the criteria argument, as long as it
+	 *										includes at least one column label and at least one cell below
+	 *										the column label in which you specify a condition for the
+	 *										column.
+	 * @return	mixed
+	 *
+	 */
+	public static function DGET($database,$field,$criteria) {
+		$field = self::__fieldExtract($database,$field);
+		if (is_null($field)) {
+			return NULL;
+		}
+
+		//	reduce the database to a set of rows that match all the criteria
+		$database = self::__filter($database,$criteria);
+		//	extract an array of values for the requested column
+		$colData = array();
+		foreach($database as $row) {
+			$colData[] = $row[$field];
+		}
+
+		// Return
+		if (count($colData) > 1) {
+			return PHPExcel_Calculation_Functions::NaN();
+		}
+
+		return $colData[0];
+	}	//	function DGET()
+
+
+	/**
+	 * DMAX
+	 *
+	 * Returns the largest number in a column of a list or database that matches conditions you that
+	 * specify.
+	 *
+	 * Excel Function:
+	 *		DMAX(database,field,criteria)
+	 *
+	 * @access	public
+	 * @category Database Functions
+	 * @param	mixed[]			$database	The range of cells that makes up the list or database.
+	 *										A database is a list of related data in which rows of related
+	 *										information are records, and columns of data are fields. The
+	 *										first row of the list contains labels for each column.
+	 * @param	string|integer	$field		Indicates which column is used in the function. Enter the
+	 *										column label enclosed between double quotation marks, such as
+	 *										"Age" or "Yield," or a number (without quotation marks) that
+	 *										represents the position of the column within the list: 1 for
+	 *										the first column, 2 for the second column, and so on.
+	 * @param	mixed[]			$criteria	The range of cells that contains the conditions you specify.
+	 *										You can use any range for the criteria argument, as long as it
+	 *										includes at least one column label and at least one cell below
+	 *										the column label in which you specify a condition for the
+	 *										column.
+	 * @return	float
+	 *
+	 */
+	public static function DMAX($database,$field,$criteria) {
+		$field = self::__fieldExtract($database,$field);
+		if (is_null($field)) {
+			return NULL;
+		}
+
+		//	reduce the database to a set of rows that match all the criteria
+		$database = self::__filter($database,$criteria);
+		//	extract an array of values for the requested column
+		$colData = array();
+		foreach($database as $row) {
+			$colData[] = $row[$field];
+		}
+
+		// Return
+		return PHPExcel_Calculation_Statistical::MAX($colData);
+	}	//	function DMAX()
+
+
+	/**
+	 * DMIN
+	 *
+	 * Returns the smallest number in a column of a list or database that matches conditions you that
+	 * specify.
+	 *
+	 * Excel Function:
+	 *		DMIN(database,field,criteria)
+	 *
+	 * @access	public
+	 * @category Database Functions
+	 * @param	mixed[]			$database	The range of cells that makes up the list or database.
+	 *										A database is a list of related data in which rows of related
+	 *										information are records, and columns of data are fields. The
+	 *										first row of the list contains labels for each column.
+	 * @param	string|integer	$field		Indicates which column is used in the function. Enter the
+	 *										column label enclosed between double quotation marks, such as
+	 *										"Age" or "Yield," or a number (without quotation marks) that
+	 *										represents the position of the column within the list: 1 for
+	 *										the first column, 2 for the second column, and so on.
+	 * @param	mixed[]			$criteria	The range of cells that contains the conditions you specify.
+	 *										You can use any range for the criteria argument, as long as it
+	 *										includes at least one column label and at least one cell below
+	 *										the column label in which you specify a condition for the
+	 *										column.
+	 * @return	float
+	 *
+	 */
+	public static function DMIN($database,$field,$criteria) {
+		$field = self::__fieldExtract($database,$field);
+		if (is_null($field)) {
+			return NULL;
+		}
+
+		//	reduce the database to a set of rows that match all the criteria
+		$database = self::__filter($database,$criteria);
+		//	extract an array of values for the requested column
+		$colData = array();
+		foreach($database as $row) {
+			$colData[] = $row[$field];
+		}
+
+		// Return
+		return PHPExcel_Calculation_Statistical::MIN($colData);
+	}	//	function DMIN()
+
+
+	/**
+	 * DPRODUCT
+	 *
+	 * Multiplies the values in a column of a list or database that match conditions that you specify.
+	 *
+	 * Excel Function:
+	 *		DPRODUCT(database,field,criteria)
+	 *
+	 * @access	public
+	 * @category Database Functions
+	 * @param	mixed[]			$database	The range of cells that makes up the list or database.
+	 *										A database is a list of related data in which rows of related
+	 *										information are records, and columns of data are fields. The
+	 *										first row of the list contains labels for each column.
+	 * @param	string|integer	$field		Indicates which column is used in the function. Enter the
+	 *										column label enclosed between double quotation marks, such as
+	 *										"Age" or "Yield," or a number (without quotation marks) that
+	 *										represents the position of the column within the list: 1 for
+	 *										the first column, 2 for the second column, and so on.
+	 * @param	mixed[]			$criteria	The range of cells that contains the conditions you specify.
+	 *										You can use any range for the criteria argument, as long as it
+	 *										includes at least one column label and at least one cell below
+	 *										the column label in which you specify a condition for the
+	 *										column.
+	 * @return	float
+	 *
+	 */
+	public static function DPRODUCT($database,$field,$criteria) {
+		$field = self::__fieldExtract($database,$field);
+		if (is_null($field)) {
+			return NULL;
+		}
+
+		//	reduce the database to a set of rows that match all the criteria
+		$database = self::__filter($database,$criteria);
+		//	extract an array of values for the requested column
+		$colData = array();
+		foreach($database as $row) {
+			$colData[] = $row[$field];
+		}
+
+		// Return
+		return PHPExcel_Calculation_MathTrig::PRODUCT($colData);
+	}	//	function DPRODUCT()
+
+
+	/**
+	 * DSTDEV
+	 *
+	 * Estimates the standard deviation of a population based on a sample by using the numbers in a
+	 * column of a list or database that match conditions that you specify.
+	 *
+	 * Excel Function:
+	 *		DSTDEV(database,field,criteria)
+	 *
+	 * @access	public
+	 * @category Database Functions
+	 * @param	mixed[]			$database	The range of cells that makes up the list or database.
+	 *										A database is a list of related data in which rows of related
+	 *										information are records, and columns of data are fields. The
+	 *										first row of the list contains labels for each column.
+	 * @param	string|integer	$field		Indicates which column is used in the function. Enter the
+	 *										column label enclosed between double quotation marks, such as
+	 *										"Age" or "Yield," or a number (without quotation marks) that
+	 *										represents the position of the column within the list: 1 for
+	 *										the first column, 2 for the second column, and so on.
+	 * @param	mixed[]			$criteria	The range of cells that contains the conditions you specify.
+	 *										You can use any range for the criteria argument, as long as it
+	 *										includes at least one column label and at least one cell below
+	 *										the column label in which you specify a condition for the
+	 *										column.
+	 * @return	float
+	 *
+	 */
+	public static function DSTDEV($database,$field,$criteria) {
+		$field = self::__fieldExtract($database,$field);
+		if (is_null($field)) {
+			return NULL;
+		}
+
+		//	reduce the database to a set of rows that match all the criteria
+		$database = self::__filter($database,$criteria);
+		//	extract an array of values for the requested column
+		$colData = array();
+		foreach($database as $row) {
+			$colData[] = $row[$field];
+		}
+
+		// Return
+		return PHPExcel_Calculation_Statistical::STDEV($colData);
+	}	//	function DSTDEV()
+
+
+	/**
+	 * DSTDEVP
+	 *
+	 * Calculates the standard deviation of a population based on the entire population by using the
+	 * numbers in a column of a list or database that match conditions that you specify.
+	 *
+	 * Excel Function:
+	 *		DSTDEVP(database,field,criteria)
+	 *
+	 * @access	public
+	 * @category Database Functions
+	 * @param	mixed[]			$database	The range of cells that makes up the list or database.
+	 *										A database is a list of related data in which rows of related
+	 *										information are records, and columns of data are fields. The
+	 *										first row of the list contains labels for each column.
+	 * @param	string|integer	$field		Indicates which column is used in the function. Enter the
+	 *										column label enclosed between double quotation marks, such as
+	 *										"Age" or "Yield," or a number (without quotation marks) that
+	 *										represents the position of the column within the list: 1 for
+	 *										the first column, 2 for the second column, and so on.
+	 * @param	mixed[]			$criteria	The range of cells that contains the conditions you specify.
+	 *										You can use any range for the criteria argument, as long as it
+	 *										includes at least one column label and at least one cell below
+	 *										the column label in which you specify a condition for the
+	 *										column.
+	 * @return	float
+	 *
+	 */
+	public static function DSTDEVP($database,$field,$criteria) {
+		$field = self::__fieldExtract($database,$field);
+		if (is_null($field)) {
+			return NULL;
+		}
+
+		//	reduce the database to a set of rows that match all the criteria
+		$database = self::__filter($database,$criteria);
+		//	extract an array of values for the requested column
+		$colData = array();
+		foreach($database as $row) {
+			$colData[] = $row[$field];
+		}
+
+		// Return
+		return PHPExcel_Calculation_Statistical::STDEVP($colData);
+	}	//	function DSTDEVP()
+
+
+	/**
+	 * DSUM
+	 *
+	 * Adds the numbers in a column of a list or database that match conditions that you specify.
+	 *
+	 * Excel Function:
+	 *		DSUM(database,field,criteria)
+	 *
+	 * @access	public
+	 * @category Database Functions
+	 * @param	mixed[]			$database	The range of cells that makes up the list or database.
+	 *										A database is a list of related data in which rows of related
+	 *										information are records, and columns of data are fields. The
+	 *										first row of the list contains labels for each column.
+	 * @param	string|integer	$field		Indicates which column is used in the function. Enter the
+	 *										column label enclosed between double quotation marks, such as
+	 *										"Age" or "Yield," or a number (without quotation marks) that
+	 *										represents the position of the column within the list: 1 for
+	 *										the first column, 2 for the second column, and so on.
+	 * @param	mixed[]			$criteria	The range of cells that contains the conditions you specify.
+	 *										You can use any range for the criteria argument, as long as it
+	 *										includes at least one column label and at least one cell below
+	 *										the column label in which you specify a condition for the
+	 *										column.
+	 * @return	float
+	 *
+	 */
+	public static function DSUM($database,$field,$criteria) {
+		$field = self::__fieldExtract($database,$field);
+		if (is_null($field)) {
+			return NULL;
+		}
+
+		//	reduce the database to a set of rows that match all the criteria
+		$database = self::__filter($database,$criteria);
+		//	extract an array of values for the requested column
+		$colData = array();
+		foreach($database as $row) {
+			$colData[] = $row[$field];
+		}
+
+		// Return
+		return PHPExcel_Calculation_MathTrig::SUM($colData);
+	}	//	function DSUM()
+
+
+	/**
+	 * DVAR
+	 *
+	 * Estimates the variance of a population based on a sample by using the numbers in a column
+	 * of a list or database that match conditions that you specify.
+	 *
+	 * Excel Function:
+	 *		DVAR(database,field,criteria)
+	 *
+	 * @access	public
+	 * @category Database Functions
+	 * @param	mixed[]			$database	The range of cells that makes up the list or database.
+	 *										A database is a list of related data in which rows of related
+	 *										information are records, and columns of data are fields. The
+	 *										first row of the list contains labels for each column.
+	 * @param	string|integer	$field		Indicates which column is used in the function. Enter the
+	 *										column label enclosed between double quotation marks, such as
+	 *										"Age" or "Yield," or a number (without quotation marks) that
+	 *										represents the position of the column within the list: 1 for
+	 *										the first column, 2 for the second column, and so on.
+	 * @param	mixed[]			$criteria	The range of cells that contains the conditions you specify.
+	 *										You can use any range for the criteria argument, as long as it
+	 *										includes at least one column label and at least one cell below
+	 *										the column label in which you specify a condition for the
+	 *										column.
+	 * @return	float
+	 *
+	 */
+	public static function DVAR($database,$field,$criteria) {
+		$field = self::__fieldExtract($database,$field);
+		if (is_null($field)) {
+			return NULL;
+		}
+
+		//	reduce the database to a set of rows that match all the criteria
+		$database = self::__filter($database,$criteria);
+		//	extract an array of values for the requested column
+		$colData = array();
+		foreach($database as $row) {
+			$colData[] = $row[$field];
+		}
+
+		// Return
+		return PHPExcel_Calculation_Statistical::VARFunc($colData);
+	}	//	function DVAR()
+
+
+	/**
+	 * DVARP
+	 *
+	 * Calculates the variance of a population based on the entire population by using the numbers
+	 * in a column of a list or database that match conditions that you specify.
+	 *
+	 * Excel Function:
+	 *		DVARP(database,field,criteria)
+	 *
+	 * @access	public
+	 * @category Database Functions
+	 * @param	mixed[]			$database	The range of cells that makes up the list or database.
+	 *										A database is a list of related data in which rows of related
+	 *										information are records, and columns of data are fields. The
+	 *										first row of the list contains labels for each column.
+	 * @param	string|integer	$field		Indicates which column is used in the function. Enter the
+	 *										column label enclosed between double quotation marks, such as
+	 *										"Age" or "Yield," or a number (without quotation marks) that
+	 *										represents the position of the column within the list: 1 for
+	 *										the first column, 2 for the second column, and so on.
+	 * @param	mixed[]			$criteria	The range of cells that contains the conditions you specify.
+	 *										You can use any range for the criteria argument, as long as it
+	 *										includes at least one column label and at least one cell below
+	 *										the column label in which you specify a condition for the
+	 *										column.
+	 * @return	float
+	 *
+	 */
+	public static function DVARP($database,$field,$criteria) {
+		$field = self::__fieldExtract($database,$field);
+		if (is_null($field)) {
+			return NULL;
+		}
+
+		//	reduce the database to a set of rows that match all the criteria
+		$database = self::__filter($database,$criteria);
+		//	extract an array of values for the requested column
+		$colData = array();
+		foreach($database as $row) {
+			$colData[] = $row[$field];
+		}
+
+		// Return
+		return PHPExcel_Calculation_Statistical::VARP($colData);
+	}	//	function DVARP()
+
+
+}	//	class PHPExcel_Calculation_Database

includes/PHPExcel/Classes/PHPExcel/Calculation/Exception.php

@@ -0,0 +1,52 @@
+<?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_Exception
+ *
+ * @category   PHPExcel
+ * @package    PHPExcel_Calculation
+ * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
+ */
+class PHPExcel_Calculation_Exception extends PHPExcel_Exception {
+	/**
+	 * Error handler callback
+	 *
+	 * @param mixed $code
+	 * @param mixed $string
+	 * @param mixed $file
+	 * @param mixed $line
+	 * @param mixed $context
+	 */
+	public static function errorHandlerCallback($code, $string, $file, $line, $context) {
+		$e = new self($string, $code);
+		$e->line = $line;
+		$e->file = $file;
+		throw $e;
+	}
+}

includes/PHPExcel/Classes/PHPExcel/Calculation/ExceptionHandler.php

@@ -0,0 +1,49 @@
+<?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_ExceptionHandler
+ *
+ * @category   PHPExcel
+ * @package    PHPExcel_Calculation
+ * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
+ */
+class PHPExcel_Calculation_ExceptionHandler {
+	/**
+	 * Register errorhandler
+	 */
+	public function __construct() {
+		set_error_handler(array('PHPExcel_Calculation_Exception', 'errorHandlerCallback'), E_ALL);
+	}
+
+	/**
+	 * Unregister errorhandler
+	 */
+	public function __destruct() {
+		restore_error_handler();
+	}
+}

includes/PHPExcel/Classes/PHPExcel/Calculation/FormulaParser.php

@@ -0,0 +1,614 @@
+<?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##
+ */
+
+
+/*
+PARTLY BASED ON:
+	Copyright (c) 2007 E. W. Bachtal, Inc.
+
+	Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+	and associated documentation files (the "Software"), to deal in the Software without restriction,
+	including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
+	and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
+	subject to the following conditions:
+
+	  The above copyright notice and this permission notice shall be included in all copies or substantial
+	  portions of the Software.
+
+	The software is provided "as is", without warranty of any kind, express or implied, including but not
+	limited to the warranties of merchantability, fitness for a particular purpose and noninfringement. In
+	no event shall the authors or copyright holders be liable for any claim, damages or other liability,
+	whether in an action of contract, tort or otherwise, arising from, out of or in connection with the
+	software or the use or other dealings in the software.
+
+	http://ewbi.blogs.com/develops/2007/03/excel_formula_p.html
+	http://ewbi.blogs.com/develops/2004/12/excel_formula_p.html
+*/
+
+/**
+ * PHPExcel_Calculation_FormulaParser
+ *
+ * @category   PHPExcel
+ * @package    PHPExcel_Calculation
+ * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
+ */
+class PHPExcel_Calculation_FormulaParser {
+	/* Character constants */
+	const QUOTE_DOUBLE  = '"';
+	const QUOTE_SINGLE  = '\'';
+	const BRACKET_CLOSE = ']';
+	const BRACKET_OPEN  = '[';
+	const BRACE_OPEN    = '{';
+	const BRACE_CLOSE   = '}';
+	const PAREN_OPEN    = '(';
+	const PAREN_CLOSE   = ')';
+	const SEMICOLON     = ';';
+	const WHITESPACE    = ' ';
+	const COMMA         = ',';
+	const ERROR_START   = '#';
+
+	const OPERATORS_SN 			= "+-";
+	const OPERATORS_INFIX 		= "+-*/^&=><";
+	const OPERATORS_POSTFIX 	= "%";
+
+	/**
+	 * Formula
+	 *
+	 * @var string
+	 */
+	private $_formula;
+
+	/**
+	 * Tokens
+	 *
+	 * @var PHPExcel_Calculation_FormulaToken[]
+	 */
+	private $_tokens = array();
+
+    /**
+     * Create a new PHPExcel_Calculation_FormulaParser
+     *
+     * @param 	string		$pFormula	Formula to parse
+     * @throws 	PHPExcel_Calculation_Exception
+     */
+    public function __construct($pFormula = '')
+    {
+    	// Check parameters
+    	if (is_null($pFormula)) {
+    		throw new PHPExcel_Calculation_Exception("Invalid parameter passed: formula");
+    	}
+
+    	// Initialise values
+    	$this->_formula = trim($pFormula);
+    	// Parse!
+    	$this->_parseToTokens();
+    }
+
+    /**
+     * Get Formula
+     *
+     * @return string
+     */
+    public function getFormula() {
+    	return $this->_formula;
+    }
+
+    /**
+     * Get Token
+     *
+     * @param 	int		$pId	Token id
+     * @return	string
+     * @throws  PHPExcel_Calculation_Exception
+     */
+    public function getToken($pId = 0) {
+    	if (isset($this->_tokens[$pId])) {
+    		return $this->_tokens[$pId];
+    	} else {
+    		throw new PHPExcel_Calculation_Exception("Token with id $pId does not exist.");
+    	}
+    }
+
+    /**
+     * Get Token count
+     *
+     * @return string
+     */
+    public function getTokenCount() {
+    	return count($this->_tokens);
+    }
+
+    /**
+     * Get Tokens
+     *
+     * @return PHPExcel_Calculation_FormulaToken[]
+     */
+    public function getTokens() {
+    	return $this->_tokens;
+    }
+
+    /**
+     * Parse to tokens
+     */
+    private function _parseToTokens() {
+		// No attempt is made to verify formulas; assumes formulas are derived from Excel, where
+		// they can only exist if valid; stack overflows/underflows sunk as nulls without exceptions.
+
+		// Check if the formula has a valid starting =
+		$formulaLength = strlen($this->_formula);
+		if ($formulaLength < 2 || $this->_formula{0} != '=') return;
+
+		// Helper variables
+		$tokens1	= $tokens2 	= $stack = array();
+		$inString	= $inPath 	= $inRange 	= $inError = false;
+		$token		= $previousToken	= $nextToken	= null;
+
+		$index	= 1;
+		$value	= '';
+
+		$ERRORS 			= array("#NULL!", "#DIV/0!", "#VALUE!", "#REF!", "#NAME?", "#NUM!", "#N/A");
+		$COMPARATORS_MULTI 	= array(">=", "<=", "<>");
+
+		while ($index < $formulaLength) {
+			// state-dependent character evaluation (order is important)
+
+			// double-quoted strings
+			// embeds are doubled
+			// end marks token
+			if ($inString) {
+				if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::QUOTE_DOUBLE) {
+					if ((($index + 2) <= $formulaLength) && ($this->_formula{$index + 1} == PHPExcel_Calculation_FormulaParser::QUOTE_DOUBLE)) {
+						$value .= PHPExcel_Calculation_FormulaParser::QUOTE_DOUBLE;
+						++$index;
+					} else {
+						$inString = false;
+						$tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND, PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_TEXT);
+						$value = "";
+					}
+				} else {
+					$value .= $this->_formula{$index};
+				}
+				++$index;
+				continue;
+			}
+
+			// single-quoted strings (links)
+			// embeds are double
+			// end does not mark a token
+			if ($inPath) {
+				if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::QUOTE_SINGLE) {
+					if ((($index + 2) <= $formulaLength) && ($this->_formula{$index + 1} == PHPExcel_Calculation_FormulaParser::QUOTE_SINGLE)) {
+						$value .= PHPExcel_Calculation_FormulaParser::QUOTE_SINGLE;
+						++$index;
+					} else {
+						$inPath = false;
+					}
+				} else {
+					$value .= $this->_formula{$index};
+				}
+				++$index;
+				continue;
+			}
+
+			// bracked strings (R1C1 range index or linked workbook name)
+			// no embeds (changed to "()" by Excel)
+			// end does not mark a token
+			if ($inRange) {
+				if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::BRACKET_CLOSE) {
+					$inRange = false;
+				}
+				$value .= $this->_formula{$index};
+				++$index;
+				continue;
+			}
+
+			// error values
+			// end marks a token, determined from absolute list of values
+			if ($inError) {
+				$value .= $this->_formula{$index};
+				++$index;
+				if (in_array($value, $ERRORS)) {
+					$inError = false;
+					$tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND, PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_ERROR);
+					$value = "";
+				}
+				continue;
+			}
+
+			// scientific notation check
+			if (strpos(PHPExcel_Calculation_FormulaParser::OPERATORS_SN, $this->_formula{$index}) !== false) {
+				if (strlen($value) > 1) {
+					if (preg_match("/^[1-9]{1}(\.[0-9]+)?E{1}$/", $this->_formula{$index}) != 0) {
+						$value .= $this->_formula{$index};
+						++$index;
+						continue;
+					}
+				}
+			}
+
+			// independent character evaluation (order not important)
+
+			// establish state-dependent character evaluations
+			if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::QUOTE_DOUBLE) {
+				if (strlen($value > 0)) {  // unexpected
+					$tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_UNKNOWN);
+					$value = "";
+				}
+				$inString = true;
+				++$index;
+				continue;
+ 			}
+
+			if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::QUOTE_SINGLE) {
+				if (strlen($value) > 0) { // unexpected
+					$tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_UNKNOWN);
+					$value = "";
+				}
+				$inPath = true;
+				++$index;
+				continue;
+			}
+
+			if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::BRACKET_OPEN) {
+				$inRange = true;
+				$value .= PHPExcel_Calculation_FormulaParser::BRACKET_OPEN;
+				++$index;
+				continue;
+			}
+
+			if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::ERROR_START) {
+				if (strlen($value) > 0) { // unexpected
+					$tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_UNKNOWN);
+					$value = "";
+				}
+				$inError = true;
+				$value .= PHPExcel_Calculation_FormulaParser::ERROR_START;
+				++$index;
+				continue;
+			}
+
+			// mark start and end of arrays and array rows
+			if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::BRACE_OPEN) {
+				if (strlen($value) > 0) { // unexpected
+					$tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_UNKNOWN);
+					$value = "";
+				}
+
+				$tmp = new PHPExcel_Calculation_FormulaToken("ARRAY", PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_FUNCTION, PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_START);
+				$tokens1[] = $tmp;
+				$stack[] = clone $tmp;
+
+				$tmp = new PHPExcel_Calculation_FormulaToken("ARRAYROW", PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_FUNCTION, PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_START);
+				$tokens1[] = $tmp;
+				$stack[] = clone $tmp;
+
+				++$index;
+				continue;
+			}
+
+			if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::SEMICOLON) {
+				if (strlen($value) > 0) {
+					$tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND);
+					$value = "";
+				}
+
+				$tmp = array_pop($stack);
+				$tmp->setValue("");
+				$tmp->setTokenSubType(PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_STOP);
+				$tokens1[] = $tmp;
+
+				$tmp = new PHPExcel_Calculation_FormulaToken(",", PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_ARGUMENT);
+				$tokens1[] = $tmp;
+
+				$tmp = new PHPExcel_Calculation_FormulaToken("ARRAYROW", PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_FUNCTION, PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_START);
+				$tokens1[] = $tmp;
+				$stack[] = clone $tmp;
+
+				++$index;
+				continue;
+			}
+
+			if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::BRACE_CLOSE) {
+				if (strlen($value) > 0) {
+					$tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND);
+					$value = "";
+				}
+
+				$tmp = array_pop($stack);
+				$tmp->setValue("");
+				$tmp->setTokenSubType(PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_STOP);
+				$tokens1[] = $tmp;
+
+				$tmp = array_pop($stack);
+				$tmp->setValue("");
+				$tmp->setTokenSubType(PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_STOP);
+				$tokens1[] = $tmp;
+
+				++$index;
+				continue;
+			}
+
+			// trim white-space
+			if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::WHITESPACE) {
+				if (strlen($value) > 0) {
+					$tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND);
+					$value = "";
+				}
+				$tokens1[] = new PHPExcel_Calculation_FormulaToken("", PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_WHITESPACE);
+				++$index;
+				while (($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::WHITESPACE) && ($index < $formulaLength)) {
+					++$index;
+				}
+				continue;
+			}
+
+			// multi-character comparators
+			if (($index + 2) <= $formulaLength) {
+				if (in_array(substr($this->_formula, $index, 2), $COMPARATORS_MULTI)) {
+					if (strlen($value) > 0) {
+						$tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND);
+						$value = "";
+					}
+					$tokens1[] = new PHPExcel_Calculation_FormulaToken(substr($this->_formula, $index, 2), PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERATORINFIX, PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_LOGICAL);
+					$index += 2;
+					continue;
+				}
+			}
+
+			// standard infix operators
+			if (strpos(PHPExcel_Calculation_FormulaParser::OPERATORS_INFIX, $this->_formula{$index}) !== false) {
+				if (strlen($value) > 0) {
+					$tokens1[] =new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND);
+					$value = "";
+				}
+				$tokens1[] = new PHPExcel_Calculation_FormulaToken($this->_formula{$index}, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERATORINFIX);
+				++$index;
+				continue;
+			}
+
+			// standard postfix operators (only one)
+			if (strpos(PHPExcel_Calculation_FormulaParser::OPERATORS_POSTFIX, $this->_formula{$index}) !== false) {
+				if (strlen($value) > 0) {
+					$tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND);
+					$value = "";
+				}
+				$tokens1[] = new PHPExcel_Calculation_FormulaToken($this->_formula{$index}, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERATORPOSTFIX);
+				++$index;
+				continue;
+			}
+
+			// start subexpression or function
+			if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::PAREN_OPEN) {
+				if (strlen($value) > 0) {
+					$tmp = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_FUNCTION, PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_START);
+					$tokens1[] = $tmp;
+					$stack[] = clone $tmp;
+					$value = "";
+				} else {
+					$tmp = new PHPExcel_Calculation_FormulaToken("", PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_SUBEXPRESSION, PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_START);
+					$tokens1[] = $tmp;
+					$stack[] = clone $tmp;
+				}
+				++$index;
+				continue;
+			}
+
+			// function, subexpression, or array parameters, or operand unions
+			if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::COMMA) {
+				if (strlen($value) > 0) {
+					$tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND);
+					$value = "";
+				}
+
+				$tmp = array_pop($stack);
+				$tmp->setValue("");
+				$tmp->setTokenSubType(PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_STOP);
+				$stack[] = $tmp;
+
+				if ($tmp->getTokenType() == PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_FUNCTION) {
+					$tokens1[] = new PHPExcel_Calculation_FormulaToken(",", PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERATORINFIX, PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_UNION);
+				} else {
+					$tokens1[] = new PHPExcel_Calculation_FormulaToken(",", PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_ARGUMENT);
+				}
+				++$index;
+				continue;
+			}
+
+			// stop subexpression
+			if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::PAREN_CLOSE) {
+				if (strlen($value) > 0) {
+					$tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND);
+					$value = "";
+				}
+
+				$tmp = array_pop($stack);
+				$tmp->setValue("");
+				$tmp->setTokenSubType(PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_STOP);
+				$tokens1[] = $tmp;
+
+				++$index;
+				continue;
+			}
+
+        	// token accumulation
+			$value .= $this->_formula{$index};
+			++$index;
+		}
+
+		// dump remaining accumulation
+		if (strlen($value) > 0) {
+			$tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND);
+		}
+
+		// move tokenList to new set, excluding unnecessary white-space tokens and converting necessary ones to intersections
+		$tokenCount = count($tokens1);
+		for ($i = 0; $i < $tokenCount; ++$i) {
+			$token = $tokens1[$i];
+			if (isset($tokens1[$i - 1])) {
+				$previousToken = $tokens1[$i - 1];
+			} else {
+				$previousToken = null;
+			}
+			if (isset($tokens1[$i + 1])) {
+				$nextToken = $tokens1[$i + 1];
+			} else {
+				$nextToken = null;
+			}
+
+			if (is_null($token)) {
+				continue;
+			}
+
+			if ($token->getTokenType() != PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_WHITESPACE) {
+				$tokens2[] = $token;
+				continue;
+			}
+
+			if (is_null($previousToken)) {
+				continue;
+			}
+
+			if (! (
+					(($previousToken->getTokenType() == PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_FUNCTION) && ($previousToken->getTokenSubType() == PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_STOP)) ||
+					(($previousToken->getTokenType() == PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_SUBEXPRESSION) && ($previousToken->getTokenSubType() == PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_STOP)) ||
+					($previousToken->getTokenType() == PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND)
+				  ) ) {
+				continue;
+			}
+
+			if (is_null($nextToken)) {
+				continue;
+			}
+
+			if (! (
+					(($nextToken->getTokenType() == PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_FUNCTION) && ($nextToken->getTokenSubType() == PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_START)) ||
+					(($nextToken->getTokenType() == PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_SUBEXPRESSION) && ($nextToken->getTokenSubType() == PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_START)) ||
+					($nextToken->getTokenType() == PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND)
+				  ) ) {
+				continue;
+			}
+
+			$tokens2[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERATORINFIX, PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_INTERSECTION);
+		}
+
+		// move tokens to final list, switching infix "-" operators to prefix when appropriate, switching infix "+" operators
+		// to noop when appropriate, identifying operand and infix-operator subtypes, and pulling "@" from function names
+		$this->_tokens = array();
+
+		$tokenCount = count($tokens2);
+		for ($i = 0; $i < $tokenCount; ++$i) {
+			$token = $tokens2[$i];
+			if (isset($tokens2[$i - 1])) {
+				$previousToken = $tokens2[$i - 1];
+			} else {
+				$previousToken = null;
+			}
+			if (isset($tokens2[$i + 1])) {
+				$nextToken = $tokens2[$i + 1];
+			} else {
+				$nextToken = null;
+			}
+
+			if (is_null($token)) {
+				continue;
+			}
+
+			if ($token->getTokenType() == PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERATORINFIX && $token->getValue() == "-") {
+				if ($i == 0) {
+					$token->setTokenType(PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERATORPREFIX);
+				} else if (
+							(($previousToken->getTokenType() == PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_FUNCTION) && ($previousToken->getTokenSubType() == PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_STOP)) ||
+							(($previousToken->getTokenType() == PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_SUBEXPRESSION) && ($previousToken->getTokenSubType() == PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_STOP)) ||
+							($previousToken->getTokenType() == PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERATORPOSTFIX) ||
+							($previousToken->getTokenType() == PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND)
+						) {
+					$token->setTokenSubType(PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_MATH);
+				} else {
+					$token->setTokenType(PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERATORPREFIX);
+				}
+
+				$this->_tokens[] = $token;
+				continue;
+			}
+
+			if ($token->getTokenType() == PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERATORINFIX && $token->getValue() == "+") {
+				if ($i == 0) {
+					continue;
+				} else if (
+							(($previousToken->getTokenType() == PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_FUNCTION) && ($previousToken->getTokenSubType() == PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_STOP)) ||
+							(($previousToken->getTokenType() == PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_SUBEXPRESSION) && ($previousToken->getTokenSubType() == PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_STOP)) ||
+							($previousToken->getTokenType() == PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERATORPOSTFIX) ||
+							($previousToken->getTokenType() == PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND)
+						) {
+					$token->setTokenSubType(PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_MATH);
+				} else {
+					continue;
+				}
+
+				$this->_tokens[] = $token;
+				continue;
+			}
+
+			if ($token->getTokenType() == PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERATORINFIX && $token->getTokenSubType() == PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_NOTHING) {
+				if (strpos("<>=", substr($token->getValue(), 0, 1)) !== false) {
+					$token->setTokenSubType(PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_LOGICAL);
+				} else if ($token->getValue() == "&") {
+					$token->setTokenSubType(PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_CONCATENATION);
+				} else {
+					$token->setTokenSubType(PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_MATH);
+				}
+
+				$this->_tokens[] = $token;
+				continue;
+			}
+
+			if ($token->getTokenType() == PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND && $token->getTokenSubType() == PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_NOTHING) {
+				if (!is_numeric($token->getValue())) {
+					if (strtoupper($token->getValue()) == "TRUE" || strtoupper($token->getValue() == "FALSE")) {
+						$token->setTokenSubType(PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_LOGICAL);
+					} else {
+						$token->setTokenSubType(PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_RANGE);
+					}
+				} else {
+					$token->setTokenSubType(PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_NUMBER);
+				}
+
+				$this->_tokens[] = $token;
+				continue;
+			}
+
+			if ($token->getTokenType() == PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_FUNCTION) {
+				if (strlen($token->getValue() > 0)) {
+					if (substr($token->getValue(), 0, 1) == "@") {
+						$token->setValue(substr($token->getValue(), 1));
+					}
+				}
+			}
+
+        	$this->_tokens[] = $token;
+		}
+    }
+}

includes/PHPExcel/Classes/PHPExcel/Calculation/FormulaToken.php

@@ -0,0 +1,176 @@
+<?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##
+ */
+
+
+/*
+PARTLY BASED ON:
+	Copyright (c) 2007 E. W. Bachtal, Inc.
+
+	Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+	and associated documentation files (the "Software"), to deal in the Software without restriction,
+	including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
+	and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
+	subject to the following conditions:
+
+	  The above copyright notice and this permission notice shall be included in all copies or substantial
+	  portions of the Software.
+
+	The software is provided "as is", without warranty of any kind, express or implied, including but not
+	limited to the warranties of merchantability, fitness for a particular purpose and noninfringement. In
+	no event shall the authors or copyright holders be liable for any claim, damages or other liability,
+	whether in an action of contract, tort or otherwise, arising from, out of or in connection with the
+	software or the use or other dealings in the software.
+
+	http://ewbi.blogs.com/develops/2007/03/excel_formula_p.html
+	http://ewbi.blogs.com/develops/2004/12/excel_formula_p.html
+*/
+
+
+/**
+ * PHPExcel_Calculation_FormulaToken
+ *
+ * @category   PHPExcel
+ * @package    PHPExcel_Calculation
+ * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
+ */
+class PHPExcel_Calculation_FormulaToken {
+	/* Token types */
+	const TOKEN_TYPE_NOOP					= 'Noop';
+	const TOKEN_TYPE_OPERAND				= 'Operand';
+	const TOKEN_TYPE_FUNCTION				= 'Function';
+	const TOKEN_TYPE_SUBEXPRESSION			= 'Subexpression';
+	const TOKEN_TYPE_ARGUMENT				= 'Argument';
+	const TOKEN_TYPE_OPERATORPREFIX			= 'OperatorPrefix';
+	const TOKEN_TYPE_OPERATORINFIX			= 'OperatorInfix';
+	const TOKEN_TYPE_OPERATORPOSTFIX		= 'OperatorPostfix';
+	const TOKEN_TYPE_WHITESPACE				= 'Whitespace';
+	const TOKEN_TYPE_UNKNOWN				= 'Unknown';
+
+	/* Token subtypes */
+	const TOKEN_SUBTYPE_NOTHING				= 'Nothing';
+	const TOKEN_SUBTYPE_START				= 'Start';
+	const TOKEN_SUBTYPE_STOP				= 'Stop';
+	const TOKEN_SUBTYPE_TEXT				= 'Text';
+	const TOKEN_SUBTYPE_NUMBER				= 'Number';
+	const TOKEN_SUBTYPE_LOGICAL				= 'Logical';
+	const TOKEN_SUBTYPE_ERROR				= 'Error';
+	const TOKEN_SUBTYPE_RANGE				= 'Range';
+	const TOKEN_SUBTYPE_MATH				= 'Math';
+	const TOKEN_SUBTYPE_CONCATENATION		= 'Concatenation';
+	const TOKEN_SUBTYPE_INTERSECTION		= 'Intersection';
+	const TOKEN_SUBTYPE_UNION				= 'Union';
+
+	/**
+	 * Value
+	 *
+	 * @var string
+	 */
+	private $_value;
+
+	/**
+	 * Token Type (represented by TOKEN_TYPE_*)
+	 *
+	 * @var string
+	 */
+	private $_tokenType;
+
+	/**
+	 * Token SubType (represented by TOKEN_SUBTYPE_*)
+	 *
+	 * @var string
+	 */
+	private $_tokenSubType;
+
+    /**
+     * Create a new PHPExcel_Calculation_FormulaToken
+     *
+     * @param string	$pValue
+     * @param string	$pTokenType 	Token type (represented by TOKEN_TYPE_*)
+     * @param string	$pTokenSubType 	Token Subtype (represented by TOKEN_SUBTYPE_*)
+     */
+    public function __construct($pValue, $pTokenType = PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_UNKNOWN, $pTokenSubType = PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_NOTHING)
+    {
+    	// Initialise values
+    	$this->_value				= $pValue;
+    	$this->_tokenType			= $pTokenType;
+    	$this->_tokenSubType 		= $pTokenSubType;
+    }
+
+    /**
+     * Get Value
+     *
+     * @return string
+     */
+    public function getValue() {
+    	return $this->_value;
+    }
+
+    /**
+     * Set Value
+     *
+     * @param string	$value
+     */
+    public function setValue($value) {
+    	$this->_value = $value;
+    }
+
+    /**
+     * Get Token Type (represented by TOKEN_TYPE_*)
+     *
+     * @return string
+     */
+    public function getTokenType() {
+    	return $this->_tokenType;
+    }
+
+    /**
+     * Set Token Type
+     *
+     * @param string	$value
+     */
+    public function setTokenType($value = PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_UNKNOWN) {
+    	$this->_tokenType = $value;
+    }
+
+    /**
+     * Get Token SubType (represented by TOKEN_SUBTYPE_*)
+     *
+     * @return string
+     */
+    public function getTokenSubType() {
+    	return $this->_tokenSubType;
+    }
+
+    /**
+     * Set Token SubType
+     *
+     * @param string	$value
+     */
+    public function setTokenSubType($value = PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_NOTHING) {
+    	$this->_tokenSubType = $value;
+    }
+}

includes/PHPExcel/Classes/PHPExcel/Calculation/Function.php

@@ -0,0 +1,149 @@
+<?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_Function
+ *
+ * @category   PHPExcel
+ * @package    PHPExcel_Calculation
+ * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
+ */
+class PHPExcel_Calculation_Function {
+	/* Function categories */
+	const CATEGORY_CUBE						= 'Cube';
+	const CATEGORY_DATABASE					= 'Database';
+	const CATEGORY_DATE_AND_TIME			= 'Date and Time';
+	const CATEGORY_ENGINEERING				= 'Engineering';
+	const CATEGORY_FINANCIAL				= 'Financial';
+	const CATEGORY_INFORMATION				= 'Information';
+	const CATEGORY_LOGICAL					= 'Logical';
+	const CATEGORY_LOOKUP_AND_REFERENCE		= 'Lookup and Reference';
+	const CATEGORY_MATH_AND_TRIG			= 'Math and Trig';
+	const CATEGORY_STATISTICAL				= 'Statistical';
+	const CATEGORY_TEXT_AND_DATA			= 'Text and Data';
+
+	/**
+	 * Category (represented by CATEGORY_*)
+	 *
+	 * @var string
+	 */
+	private $_category;
+
+	/**
+	 * Excel name
+	 *
+	 * @var string
+	 */
+	private $_excelName;
+
+	/**
+	 * PHPExcel name
+	 *
+	 * @var string
+	 */
+	private $_phpExcelName;
+
+    /**
+     * Create a new PHPExcel_Calculation_Function
+     *
+     * @param 	string		$pCategory 		Category (represented by CATEGORY_*)
+     * @param 	string		$pExcelName		Excel function name
+     * @param 	string		$pPHPExcelName	PHPExcel function mapping
+     * @throws 	PHPExcel_Calculation_Exception
+     */
+    public function __construct($pCategory = NULL, $pExcelName = NULL, $pPHPExcelName = NULL)
+    {
+    	if (($pCategory !== NULL) && ($pExcelName !== NULL) && ($pPHPExcelName !== NULL)) {
+    		// Initialise values
+    		$this->_category 		= $pCategory;
+    		$this->_excelName 		= $pExcelName;
+    		$this->_phpExcelName 	= $pPHPExcelName;
+    	} else {
+    		throw new PHPExcel_Calculation_Exception("Invalid parameters passed.");
+    	}
+    }
+
+    /**
+     * Get Category (represented by CATEGORY_*)
+     *
+     * @return string
+     */
+    public function getCategory() {
+    	return $this->_category;
+    }
+
+    /**
+     * Set Category (represented by CATEGORY_*)
+     *
+     * @param 	string		$value
+     * @throws 	PHPExcel_Calculation_Exception
+     */
+    public function setCategory($value = null) {
+    	if (!is_null($value)) {
+    		$this->_category = $value;
+    	} else {
+    		throw new PHPExcel_Calculation_Exception("Invalid parameter passed.");
+    	}
+    }
+
+    /**
+     * Get Excel name
+     *
+     * @return string
+     */
+    public function getExcelName() {
+    	return $this->_excelName;
+    }
+
+    /**
+     * Set Excel name
+     *
+     * @param string	$value
+     */
+    public function setExcelName($value) {
+    	$this->_excelName = $value;
+    }
+
+    /**
+     * Get PHPExcel name
+     *
+     * @return string
+     */
+    public function getPHPExcelName() {
+    	return $this->_phpExcelName;
+    }
+
+    /**
+     * Set PHPExcel name
+     *
+     * @param string	$value
+     */
+    public function setPHPExcelName($value) {
+    	$this->_phpExcelName = $value;
+    }
+}

includes/PHPExcel/Classes/PHPExcel/Calculation/Functions.php

@@ -0,0 +1,725 @@
+<?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 root directory */
+if (!defined('PHPEXCEL_ROOT')) {
+	/**
+	 * @ignore
+	 */
+	define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../');
+	require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');
+}
+
+
+/** MAX_VALUE */
+define('MAX_VALUE', 1.2e308);
+
+/** 2 / PI */
+define('M_2DIVPI', 0.63661977236758134307553505349006);
+
+/** MAX_ITERATIONS */
+define('MAX_ITERATIONS', 256);
+
+/** PRECISION */
+define('PRECISION', 8.88E-016);
+
+
+/**
+ * PHPExcel_Calculation_Functions
+ *
+ * @category	PHPExcel
+ * @package		PHPExcel_Calculation
+ * @copyright	Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
+ */
+class PHPExcel_Calculation_Functions {
+
+	/** constants */
+	const COMPATIBILITY_EXCEL		= 'Excel';
+	const COMPATIBILITY_GNUMERIC	= 'Gnumeric';
+	const COMPATIBILITY_OPENOFFICE	= 'OpenOfficeCalc';
+
+	const RETURNDATE_PHP_NUMERIC	= 'P';
+	const RETURNDATE_PHP_OBJECT		= 'O';
+	const RETURNDATE_EXCEL			= 'E';
+
+
+	/**
+	 * Compatibility mode to use for error checking and responses
+	 *
+	 * @access	private
+	 * @var string
+	 */
+	protected static $compatibilityMode	= self::COMPATIBILITY_EXCEL;
+
+	/**
+	 * Data Type to use when returning date values
+	 *
+	 * @access	private
+	 * @var string
+	 */
+	protected static $ReturnDateType	= self::RETURNDATE_EXCEL;
+
+	/**
+	 * List of error codes
+	 *
+	 * @access	private
+	 * @var array
+	 */
+	protected static $_errorCodes	= array( 'null'				=> '#NULL!',
+											 'divisionbyzero'	=> '#DIV/0!',
+											 'value'			=> '#VALUE!',
+											 'reference'		=> '#REF!',
+											 'name'				=> '#NAME?',
+											 'num'				=> '#NUM!',
+											 'na'				=> '#N/A',
+											 'gettingdata'		=> '#GETTING_DATA'
+										   );
+
+
+	/**
+	 * Set the Compatibility Mode
+	 *
+	 * @access	public
+	 * @category Function Configuration
+	 * @param	 string		$compatibilityMode		Compatibility Mode
+	 *												Permitted values are:
+	 *													PHPExcel_Calculation_Functions::COMPATIBILITY_EXCEL			'Excel'
+	 *													PHPExcel_Calculation_Functions::COMPATIBILITY_GNUMERIC		'Gnumeric'
+	 *													PHPExcel_Calculation_Functions::COMPATIBILITY_OPENOFFICE	'OpenOfficeCalc'
+	 * @return	 boolean	(Success or Failure)
+	 */
+	public static function setCompatibilityMode($compatibilityMode) {
+		if (($compatibilityMode == self::COMPATIBILITY_EXCEL) ||
+			($compatibilityMode == self::COMPATIBILITY_GNUMERIC) ||
+			($compatibilityMode == self::COMPATIBILITY_OPENOFFICE)) {
+			self::$compatibilityMode = $compatibilityMode;
+			return True;
+		}
+		return False;
+	}	//	function setCompatibilityMode()
+
+
+	/**
+	 * Return the current Compatibility Mode
+	 *
+	 * @access	public
+	 * @category Function Configuration
+	 * @return	 string		Compatibility Mode
+	 *							Possible Return values are:
+	 *								PHPExcel_Calculation_Functions::COMPATIBILITY_EXCEL			'Excel'
+	 *								PHPExcel_Calculation_Functions::COMPATIBILITY_GNUMERIC		'Gnumeric'
+	 *								PHPExcel_Calculation_Functions::COMPATIBILITY_OPENOFFICE	'OpenOfficeCalc'
+	 */
+	public static function getCompatibilityMode() {
+		return self::$compatibilityMode;
+	}	//	function getCompatibilityMode()
+
+
+	/**
+	 * Set the Return Date Format used by functions that return a date/time (Excel, PHP Serialized Numeric or PHP Object)
+	 *
+	 * @access	public
+	 * @category Function Configuration
+	 * @param	 string	$returnDateType			Return Date Format
+	 *												Permitted values are:
+	 *													PHPExcel_Calculation_Functions::RETURNDATE_PHP_NUMERIC		'P'
+	 *													PHPExcel_Calculation_Functions::RETURNDATE_PHP_OBJECT		'O'
+	 *													PHPExcel_Calculation_Functions::RETURNDATE_EXCEL			'E'
+	 * @return	 boolean							Success or failure
+	 */
+	public static function setReturnDateType($returnDateType) {
+		if (($returnDateType == self::RETURNDATE_PHP_NUMERIC) ||
+			($returnDateType == self::RETURNDATE_PHP_OBJECT) ||
+			($returnDateType == self::RETURNDATE_EXCEL)) {
+			self::$ReturnDateType = $returnDateType;
+			return True;
+		}
+		return False;
+	}	//	function setReturnDateType()
+
+
+	/**
+	 * Return the current Return Date Format for functions that return a date/time (Excel, PHP Serialized Numeric or PHP Object)
+	 *
+	 * @access	public
+	 * @category Function Configuration
+	 * @return	 string		Return Date Format
+	 *							Possible Return values are:
+	 *								PHPExcel_Calculation_Functions::RETURNDATE_PHP_NUMERIC		'P'
+	 *								PHPExcel_Calculation_Functions::RETURNDATE_PHP_OBJECT		'O'
+	 *								PHPExcel_Calculation_Functions::RETURNDATE_EXCEL			'E'
+	 */
+	public static function getReturnDateType() {
+		return self::$ReturnDateType;
+	}	//	function getReturnDateType()
+
+
+	/**
+	 * DUMMY
+	 *
+	 * @access	public
+	 * @category Error Returns
+	 * @return	string	#Not Yet Implemented
+	 */
+	public static function DUMMY() {
+		return '#Not Yet Implemented';
+	}	//	function DUMMY()
+
+
+	/**
+	 * DIV0
+	 *
+	 * @access	public
+	 * @category Error Returns
+	 * @return	string	#Not Yet Implemented
+	 */
+	public static function DIV0() {
+		return self::$_errorCodes['divisionbyzero'];
+	}	//	function DIV0()
+
+
+	/**
+	 * NA
+	 *
+	 * Excel Function:
+	 *		=NA()
+	 *
+	 * Returns the error value #N/A
+	 *		#N/A is the error value that means "no value is available."
+	 *
+	 * @access	public
+	 * @category Logical Functions
+	 * @return	string	#N/A!
+	 */
+	public static function NA() {
+		return self::$_errorCodes['na'];
+	}	//	function NA()
+
+
+	/**
+	 * NaN
+	 *
+	 * Returns the error value #NUM!
+	 *
+	 * @access	public
+	 * @category Error Returns
+	 * @return	string	#NUM!
+	 */
+	public static function NaN() {
+		return self::$_errorCodes['num'];
+	}	//	function NaN()
+
+
+	/**
+	 * NAME
+	 *
+	 * Returns the error value #NAME?
+	 *
+	 * @access	public
+	 * @category Error Returns
+	 * @return	string	#NAME?
+	 */
+	public static function NAME() {
+		return self::$_errorCodes['name'];
+	}	//	function NAME()
+
+
+	/**
+	 * REF
+	 *
+	 * Returns the error value #REF!
+	 *
+	 * @access	public
+	 * @category Error Returns
+	 * @return	string	#REF!
+	 */
+	public static function REF() {
+		return self::$_errorCodes['reference'];
+	}	//	function REF()
+
+
+	/**
+	 * NULL
+	 *
+	 * Returns the error value #NULL!
+	 *
+	 * @access	public
+	 * @category Error Returns
+	 * @return	string	#NULL!
+	 */
+	public static function NULL() {
+		return self::$_errorCodes['null'];
+	}	//	function NULL()
+
+
+	/**
+	 * VALUE
+	 *
+	 * Returns the error value #VALUE!
+	 *
+	 * @access	public
+	 * @category Error Returns
+	 * @return	string	#VALUE!
+	 */
+	public static function VALUE() {
+		return self::$_errorCodes['value'];
+	}	//	function VALUE()
+
+
+	public static function isMatrixValue($idx) {
+		return ((substr_count($idx,'.') <= 1) || (preg_match('/\.[A-Z]/',$idx) > 0));
+	}
+
+
+	public static function isValue($idx) {
+		return (substr_count($idx,'.') == 0);
+	}
+
+
+	public static function isCellValue($idx) {
+		return (substr_count($idx,'.') > 1);
+	}
+
+
+	public static function _ifCondition($condition) {
+		$condition	= PHPExcel_Calculation_Functions::flattenSingleValue($condition);
+		if (!isset($condition{0}))
+			$condition = '=""';
+		if (!in_array($condition{0},array('>', '<', '='))) {
+			if (!is_numeric($condition)) { $condition = PHPExcel_Calculation::_wrapResult(strtoupper($condition)); }
+			return '='.$condition;
+		} else {
+			preg_match('/([<>=]+)(.*)/',$condition,$matches);
+			list(,$operator,$operand) = $matches;
+
+			if (!is_numeric($operand)) {
+				$operand = str_replace('"', '""', $operand);
+				$operand = PHPExcel_Calculation::_wrapResult(strtoupper($operand));
+			}
+
+			return $operator.$operand;
+		}
+	}	//	function _ifCondition()
+
+
+	/**
+	 * ERROR_TYPE
+	 *
+	 * @param	mixed	$value	Value to check
+	 * @return	boolean
+	 */
+	public static function ERROR_TYPE($value = '') {
+		$value	= self::flattenSingleValue($value);
+
+		$i = 1;
+		foreach(self::$_errorCodes as $errorCode) {
+			if ($value === $errorCode) {
+				return $i;
+			}
+			++$i;
+		}
+		return self::NA();
+	}	//	function ERROR_TYPE()
+
+
+	/**
+	 * IS_BLANK
+	 *
+	 * @param	mixed	$value	Value to check
+	 * @return	boolean
+	 */
+	public static function IS_BLANK($value = NULL) {
+		if (!is_null($value)) {
+			$value	= self::flattenSingleValue($value);
+		}
+
+		return is_null($value);
+	}	//	function IS_BLANK()
+
+
+	/**
+	 * IS_ERR
+	 *
+	 * @param	mixed	$value	Value to check
+	 * @return	boolean
+	 */
+	public static function IS_ERR($value = '') {
+		$value		= self::flattenSingleValue($value);
+
+		return self::IS_ERROR($value) && (!self::IS_NA($value));
+	}	//	function IS_ERR()
+
+
+	/**
+	 * IS_ERROR
+	 *
+	 * @param	mixed	$value	Value to check
+	 * @return	boolean
+	 */
+	public static function IS_ERROR($value = '') {
+		$value		= self::flattenSingleValue($value);
+
+		if (!is_string($value))
+			return false;
+		return in_array($value, array_values(self::$_errorCodes));
+	}	//	function IS_ERROR()
+
+
+	/**
+	 * IS_NA
+	 *
+	 * @param	mixed	$value	Value to check
+	 * @return	boolean
+	 */
+	public static function IS_NA($value = '') {
+		$value		= self::flattenSingleValue($value);
+
+		return ($value === self::NA());
+	}	//	function IS_NA()
+
+
+	/**
+	 * IS_EVEN
+	 *
+	 * @param	mixed	$value	Value to check
+	 * @return	boolean
+	 */
+	public static function IS_EVEN($value = NULL) {
+		$value = self::flattenSingleValue($value);
+
+		if ($value === NULL)
+			return self::NAME();
+		if ((is_bool($value)) || ((is_string($value)) && (!is_numeric($value))))
+			return self::VALUE();
+		return ($value % 2 == 0);
+	}	//	function IS_EVEN()
+
+
+	/**
+	 * IS_ODD
+	 *
+	 * @param	mixed	$value	Value to check
+	 * @return	boolean
+	 */
+	public static function IS_ODD($value = NULL) {
+		$value = self::flattenSingleValue($value);
+
+		if ($value === NULL)
+			return self::NAME();
+		if ((is_bool($value)) || ((is_string($value)) && (!is_numeric($value))))
+			return self::VALUE();
+		return (abs($value) % 2 == 1);
+	}	//	function IS_ODD()
+
+
+	/**
+	 * IS_NUMBER
+	 *
+	 * @param	mixed	$value		Value to check
+	 * @return	boolean
+	 */
+	public static function IS_NUMBER($value = NULL) {
+		$value		= self::flattenSingleValue($value);
+
+		if (is_string($value)) {
+			return False;
+		}
+		return is_numeric($value);
+	}	//	function IS_NUMBER()
+
+
+	/**
+	 * IS_LOGICAL
+	 *
+	 * @param	mixed	$value		Value to check
+	 * @return	boolean
+	 */
+	public static function IS_LOGICAL($value = NULL) {
+		$value		= self::flattenSingleValue($value);
+
+		return is_bool($value);
+	}	//	function IS_LOGICAL()
+
+
+	/**
+	 * IS_TEXT
+	 *
+	 * @param	mixed	$value		Value to check
+	 * @return	boolean
+	 */
+	public static function IS_TEXT($value = NULL) {
+		$value		= self::flattenSingleValue($value);
+
+		return (is_string($value) && !self::IS_ERROR($value));
+	}	//	function IS_TEXT()
+
+
+	/**
+	 * IS_NONTEXT
+	 *
+	 * @param	mixed	$value		Value to check
+	 * @return	boolean
+	 */
+	public static function IS_NONTEXT($value = NULL) {
+		return !self::IS_TEXT($value);
+	}	//	function IS_NONTEXT()
+
+
+	/**
+	 * VERSION
+	 *
+	 * @return	string	Version information
+	 */
+	public static function VERSION() {
+		return 'PHPExcel 1.8.1, 2015-04-30';
+	}	//	function VERSION()
+
+
+	/**
+	 * N
+	 *
+	 * Returns a value converted to a number
+	 *
+	 * @param	value		The value you want converted
+	 * @return	number		N converts values listed in the following table
+	 *		If value is or refers to N returns
+	 *		A number			That number
+	 *		A date				The serial number of that date
+	 *		TRUE				1
+	 *		FALSE				0
+	 *		An error value		The error value
+	 *		Anything else		0
+	 */
+	public static function N($value = NULL) {
+		while (is_array($value)) {
+			$value = array_shift($value);
+		}
+
+		switch (gettype($value)) {
+			case 'double'	:
+			case 'float'	:
+			case 'integer'	:
+				return $value;
+				break;
+			case 'boolean'	:
+				return (integer) $value;
+				break;
+			case 'string'	:
+				//	Errors
+				if ((strlen($value) > 0) && ($value{0} == '#')) {
+					return $value;
+				}
+				break;
+		}
+		return 0;
+	}	//	function N()
+
+
+	/**
+	 * TYPE
+	 *
+	 * Returns a number that identifies the type of a value
+	 *
+	 * @param	value		The value you want tested
+	 * @return	number		N converts values listed in the following table
+	 *		If value is or refers to N returns
+	 *		A number			1
+	 *		Text				2
+	 *		Logical Value		4
+	 *		An error value		16
+	 *		Array or Matrix		64
+	 */
+	public static function TYPE($value = NULL) {
+		$value	= self::flattenArrayIndexed($value);
+		if (is_array($value) && (count($value) > 1)) {
+			$a = array_keys($value);
+			$a = array_pop($a);
+			//	Range of cells is an error
+			if (self::isCellValue($a)) {
+				return 16;
+			//	Test for Matrix
+			} elseif (self::isMatrixValue($a)) {
+				return 64;
+			}
+		} elseif(empty($value)) {
+			//	Empty Cell
+			return 1;
+		}
+		$value	= self::flattenSingleValue($value);
+
+		if (($value === NULL) || (is_float($value)) || (is_int($value))) {
+				return 1;
+		} elseif(is_bool($value)) {
+				return 4;
+		} elseif(is_array($value)) {
+				return 64;
+		} elseif(is_string($value)) {
+			//	Errors
+			if ((strlen($value) > 0) && ($value{0} == '#')) {
+				return 16;
+			}
+			return 2;
+		}
+		return 0;
+	}	//	function TYPE()
+
+
+	/**
+	 * Convert a multi-dimensional array to a simple 1-dimensional array
+	 *
+	 * @param	array	$array	Array to be flattened
+	 * @return	array	Flattened array
+	 */
+	public static function flattenArray($array) {
+		if (!is_array($array)) {
+			return (array) $array;
+		}
+
+		$arrayValues = array();
+		foreach ($array as $value) {
+			if (is_array($value)) {
+				foreach ($value as $val) {
+					if (is_array($val)) {
+						foreach ($val as $v) {
+							$arrayValues[] = $v;
+						}
+					} else {
+						$arrayValues[] = $val;
+					}
+				}
+			} else {
+				$arrayValues[] = $value;
+			}
+		}
+
+		return $arrayValues;
+	}	//	function flattenArray()
+
+
+	/**
+	 * Convert a multi-dimensional array to a simple 1-dimensional array, but retain an element of indexing
+	 *
+	 * @param	array	$array	Array to be flattened
+	 * @return	array	Flattened array
+	 */
+	public static function flattenArrayIndexed($array) {
+		if (!is_array($array)) {
+			return (array) $array;
+		}
+
+		$arrayValues = array();
+		foreach ($array as $k1 => $value) {
+			if (is_array($value)) {
+				foreach ($value as $k2 => $val) {
+					if (is_array($val)) {
+						foreach ($val as $k3 => $v) {
+							$arrayValues[$k1.'.'.$k2.'.'.$k3] = $v;
+						}
+					} else {
+						$arrayValues[$k1.'.'.$k2] = $val;
+					}
+				}
+			} else {
+				$arrayValues[$k1] = $value;
+			}
+		}
+
+		return $arrayValues;
+	}	//	function flattenArrayIndexed()
+
+
+	/**
+	 * Convert an array to a single scalar value by extracting the first element
+	 *
+	 * @param	mixed		$value		Array or scalar value
+	 * @return	mixed
+	 */
+	public static function flattenSingleValue($value = '') {
+		while (is_array($value)) {
+			$value = array_pop($value);
+		}
+
+		return $value;
+	}	//	function flattenSingleValue()
+
+}	//	class PHPExcel_Calculation_Functions
+
+
+//
+//	There are a few mathematical functions that aren't available on all versions of PHP for all platforms
+//	These functions aren't available in Windows implementations of PHP prior to version 5.3.0
+//	So we test if they do exist for this version of PHP/operating platform; and if not we create them
+//
+if (!function_exists('acosh')) {
+	function acosh($x) {
+		return 2 * log(sqrt(($x + 1) / 2) + sqrt(($x - 1) / 2));
+	}	//	function acosh()
+}
+
+if (!function_exists('asinh')) {
+	function asinh($x) {
+		return log($x + sqrt(1 + $x * $x));
+	}	//	function asinh()
+}
+
+if (!function_exists('atanh')) {
+	function atanh($x) {
+		return (log(1 + $x) - log(1 - $x)) / 2;
+	}	//	function atanh()
+}
+
+
+//
+//	Strangely, PHP doesn't have a mb_str_replace multibyte function
+//	As we'll only ever use this function with UTF-8 characters, we can simply "hard-code" the character set
+//
+if ((!function_exists('mb_str_replace')) &&
+	(function_exists('mb_substr')) && (function_exists('mb_strlen')) && (function_exists('mb_strpos'))) {
+	function mb_str_replace($search, $replace, $subject) {
+		if(is_array($subject)) {
+			$ret = array();
+			foreach($subject as $key => $val) {
+				$ret[$key] = mb_str_replace($search, $replace, $val);
+			}
+			return $ret;
+		}
+
+		foreach((array) $search as $key => $s) {
+			if($s == '' && $s !== 0) {
+				continue;
+			}
+			$r = !is_array($replace) ? $replace : (array_key_exists($key, $replace) ? $replace[$key] : '');
+			$pos = mb_strpos($subject, $s, 0, 'UTF-8');
+			while($pos !== false) {
+				$subject = mb_substr($subject, 0, $pos, 'UTF-8') . $r . mb_substr($subject, $pos + mb_strlen($s, 'UTF-8'), 65535, 'UTF-8');
+				$pos = mb_strpos($subject, $s, $pos + mb_strlen($r, 'UTF-8'), 'UTF-8');
+			}
+		}
+		return $subject;
+	}
+}

includes/PHPExcel/Classes/PHPExcel/Calculation/Logical.php

@@ -0,0 +1,288 @@
+<?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 root directory */
+if (!defined('PHPEXCEL_ROOT')) {
+	/**
+	 * @ignore
+	 */
+	define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../');
+	require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');
+}
+
+
+/**
+ * PHPExcel_Calculation_Logical
+ *
+ * @category	PHPExcel
+ * @package		PHPExcel_Calculation
+ * @copyright	Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
+ */
+class PHPExcel_Calculation_Logical {
+
+	/**
+	 * TRUE
+	 *
+	 * Returns the boolean TRUE.
+	 *
+	 * Excel Function:
+	 *		=TRUE()
+	 *
+	 * @access	public
+	 * @category Logical Functions
+	 * @return	boolean		True
+	 */
+	public static function TRUE() {
+		return TRUE;
+	}	//	function TRUE()
+
+
+	/**
+	 * FALSE
+	 *
+	 * Returns the boolean FALSE.
+	 *
+	 * Excel Function:
+	 *		=FALSE()
+	 *
+	 * @access	public
+	 * @category Logical Functions
+	 * @return	boolean		False
+	 */
+	public static function FALSE() {
+		return FALSE;
+	}	//	function FALSE()
+
+
+	/**
+	 * LOGICAL_AND
+	 *
+	 * Returns boolean TRUE if all its arguments are TRUE; returns FALSE if one or more argument is FALSE.
+	 *
+	 * Excel Function:
+	 *		=AND(logical1[,logical2[, ...]])
+	 *
+	 *		The arguments must evaluate to logical values such as TRUE or FALSE, or the arguments must be arrays
+	 *			or references that contain logical values.
+	 *
+	 *		Boolean arguments are treated as True or False as appropriate
+	 *		Integer or floating point arguments are treated as True, except for 0 or 0.0 which are False
+	 *		If any argument value is a string, or a Null, the function returns a #VALUE! error, unless the string holds
+	 *			the value TRUE or FALSE, in which case it is evaluated as the corresponding boolean value
+	 *
+	 * @access	public
+	 * @category Logical Functions
+	 * @param	mixed		$arg,...		Data values
+	 * @return	boolean		The logical AND of the arguments.
+	 */
+	public static function LOGICAL_AND() {
+		// Return value
+		$returnValue = TRUE;
+
+		// Loop through the arguments
+		$aArgs = PHPExcel_Calculation_Functions::flattenArray(func_get_args());
+		$argCount = -1;
+		foreach ($aArgs as $argCount => $arg) {
+			// Is it a boolean value?
+			if (is_bool($arg)) {
+				$returnValue = $returnValue && $arg;
+			} elseif ((is_numeric($arg)) && (!is_string($arg))) {
+				$returnValue = $returnValue && ($arg != 0);
+			} elseif (is_string($arg)) {
+				$arg = strtoupper($arg);
+				if (($arg == 'TRUE') || ($arg == PHPExcel_Calculation::getTRUE())) {
+					$arg = TRUE;
+				} elseif (($arg == 'FALSE') || ($arg == PHPExcel_Calculation::getFALSE())) {
+					$arg = FALSE;
+				} else {
+					return PHPExcel_Calculation_Functions::VALUE();
+				}
+				$returnValue = $returnValue && ($arg != 0);
+			}
+		}
+
+		// Return
+		if ($argCount < 0) {
+			return PHPExcel_Calculation_Functions::VALUE();
+		}
+		return $returnValue;
+	}	//	function LOGICAL_AND()
+
+
+	/**
+	 * LOGICAL_OR
+	 *
+	 * Returns boolean TRUE if any argument is TRUE; returns FALSE if all arguments are FALSE.
+	 *
+	 * Excel Function:
+	 *		=OR(logical1[,logical2[, ...]])
+	 *
+	 *		The arguments must evaluate to logical values such as TRUE or FALSE, or the arguments must be arrays
+	 *			or references that contain logical values.
+	 *
+	 *		Boolean arguments are treated as True or False as appropriate
+	 *		Integer or floating point arguments are treated as True, except for 0 or 0.0 which are False
+	 *		If any argument value is a string, or a Null, the function returns a #VALUE! error, unless the string holds
+	 *			the value TRUE or FALSE, in which case it is evaluated as the corresponding boolean value
+	 *
+	 * @access	public
+	 * @category Logical Functions
+	 * @param	mixed		$arg,...		Data values
+	 * @return	boolean		The logical OR of the arguments.
+	 */
+	public static function LOGICAL_OR() {
+		// Return value
+		$returnValue = FALSE;
+
+		// Loop through the arguments
+		$aArgs = PHPExcel_Calculation_Functions::flattenArray(func_get_args());
+		$argCount = -1;
+		foreach ($aArgs as $argCount => $arg) {
+			// Is it a boolean value?
+			if (is_bool($arg)) {
+				$returnValue = $returnValue || $arg;
+			} elseif ((is_numeric($arg)) && (!is_string($arg))) {
+				$returnValue = $returnValue || ($arg != 0);
+			} elseif (is_string($arg)) {
+				$arg = strtoupper($arg);
+				if (($arg == 'TRUE') || ($arg == PHPExcel_Calculation::getTRUE())) {
+					$arg = TRUE;
+				} elseif (($arg == 'FALSE') || ($arg == PHPExcel_Calculation::getFALSE())) {
+					$arg = FALSE;
+				} else {
+					return PHPExcel_Calculation_Functions::VALUE();
+				}
+				$returnValue = $returnValue || ($arg != 0);
+			}
+		}
+
+		// Return
+		if ($argCount < 0) {
+			return PHPExcel_Calculation_Functions::VALUE();
+		}
+		return $returnValue;
+	}	//	function LOGICAL_OR()
+
+
+	/**
+	 * NOT
+	 *
+	 * Returns the boolean inverse of the argument.
+	 *
+	 * Excel Function:
+	 *		=NOT(logical)
+	 *
+	 *		The argument must evaluate to a logical value such as TRUE or FALSE
+	 *
+	 *		Boolean arguments are treated as True or False as appropriate
+	 *		Integer or floating point arguments are treated as True, except for 0 or 0.0 which are False
+	 *		If any argument value is a string, or a Null, the function returns a #VALUE! error, unless the string holds
+	 *			the value TRUE or FALSE, in which case it is evaluated as the corresponding boolean value
+	 *
+	 * @access	public
+	 * @category Logical Functions
+	 * @param	mixed		$logical	A value or expression that can be evaluated to TRUE or FALSE
+	 * @return	boolean		The boolean inverse of the argument.
+	 */
+	public static function NOT($logical=FALSE) {
+		$logical = PHPExcel_Calculation_Functions::flattenSingleValue($logical);
+		if (is_string($logical)) {
+			$logical = strtoupper($logical);
+			if (($logical == 'TRUE') || ($logical == PHPExcel_Calculation::getTRUE())) {
+				return FALSE;
+			} elseif (($logical == 'FALSE') || ($logical == PHPExcel_Calculation::getFALSE())) {
+				return TRUE;
+			} else {
+				return PHPExcel_Calculation_Functions::VALUE();
+			}
+		}
+
+		return !$logical;
+	}	//	function NOT()
+
+	/**
+	 * STATEMENT_IF
+	 *
+	 * Returns one value if a condition you specify evaluates to TRUE and another value if it evaluates to FALSE.
+	 *
+	 * Excel Function:
+	 *		=IF(condition[,returnIfTrue[,returnIfFalse]])
+	 *
+	 *		Condition is any value or expression that can be evaluated to TRUE or FALSE.
+	 *			For example, A10=100 is a logical expression; if the value in cell A10 is equal to 100,
+	 *			the expression evaluates to TRUE. Otherwise, the expression evaluates to FALSE.
+	 *			This argument can use any comparison calculation operator.
+	 *		ReturnIfTrue is the value that is returned if condition evaluates to TRUE.
+	 *			For example, if this argument is the text string "Within budget" and the condition argument evaluates to TRUE,
+	 *			then the IF function returns the text "Within budget"
+	 *			If condition is TRUE and ReturnIfTrue is blank, this argument returns 0 (zero). To display the word TRUE, use
+	 *			the logical value TRUE for this argument.
+	 *			ReturnIfTrue can be another formula.
+	 *		ReturnIfFalse is the value that is returned if condition evaluates to FALSE.
+	 *			For example, if this argument is the text string "Over budget" and the condition argument evaluates to FALSE,
+	 *			then the IF function returns the text "Over budget".
+	 *			If condition is FALSE and ReturnIfFalse is omitted, then the logical value FALSE is returned.
+	 *			If condition is FALSE and ReturnIfFalse is blank, then the value 0 (zero) is returned.
+	 *			ReturnIfFalse can be another formula.
+	 *
+	 * @access	public
+	 * @category Logical Functions
+	 * @param	mixed	$condition		Condition to evaluate
+	 * @param	mixed	$returnIfTrue	Value to return when condition is true
+	 * @param	mixed	$returnIfFalse	Optional value to return when condition is false
+	 * @return	mixed	The value of returnIfTrue or returnIfFalse determined by condition
+	 */
+	public static function STATEMENT_IF($condition = TRUE, $returnIfTrue = 0, $returnIfFalse = FALSE) {
+		$condition		= (is_null($condition))		? TRUE :	(boolean) PHPExcel_Calculation_Functions::flattenSingleValue($condition);
+		$returnIfTrue	= (is_null($returnIfTrue))	? 0 :		PHPExcel_Calculation_Functions::flattenSingleValue($returnIfTrue);
+		$returnIfFalse	= (is_null($returnIfFalse))	? FALSE :	PHPExcel_Calculation_Functions::flattenSingleValue($returnIfFalse);
+
+		return ($condition) ? $returnIfTrue : $returnIfFalse;
+	}	//	function STATEMENT_IF()
+
+
+	/**
+	 * IFERROR
+	 *
+	 * Excel Function:
+	 *		=IFERROR(testValue,errorpart)
+	 *
+	 * @access	public
+	 * @category Logical Functions
+	 * @param	mixed	$testValue	Value to check, is also the value returned when no error
+	 * @param	mixed	$errorpart	Value to return when testValue is an error condition
+	 * @return	mixed	The value of errorpart or testValue determined by error condition
+	 */
+	public static function IFERROR($testValue = '', $errorpart = '') {
+		$testValue	= (is_null($testValue))	? '' :	PHPExcel_Calculation_Functions::flattenSingleValue($testValue);
+		$errorpart	= (is_null($errorpart))	? '' :	PHPExcel_Calculation_Functions::flattenSingleValue($errorpart);
+
+		return self::STATEMENT_IF(PHPExcel_Calculation_Functions::IS_ERROR($testValue), $errorpart, $testValue);
+	}	//	function IFERROR()
+
+}	//	class PHPExcel_Calculation_Logical

includes/PHPExcel/Classes/PHPExcel/Calculation/LookupRef.php

@@ -0,0 +1,876 @@
+<?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 root directory */
+if (!defined('PHPEXCEL_ROOT')) {
+	/**
+	 * @ignore
+	 */
+	define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../');
+	require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');
+}
+
+
+/**
+ * PHPExcel_Calculation_LookupRef
+ *
+ * @category	PHPExcel
+ * @package		PHPExcel_Calculation
+ * @copyright	Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
+ */
+class PHPExcel_Calculation_LookupRef {
+
+
+	/**
+	 * CELL_ADDRESS
+	 *
+	 * Creates a cell address as text, given specified row and column numbers.
+	 *
+	 * Excel Function:
+	 *		=ADDRESS(row, column, [relativity], [referenceStyle], [sheetText])
+	 *
+	 * @param	row				Row number to use in the cell reference
+	 * @param	column			Column number to use in the cell reference
+	 * @param	relativity		Flag indicating the type of reference to return
+	 *								1 or omitted	Absolute
+	 *								2				Absolute row; relative column
+	 *								3				Relative row; absolute column
+	 *								4				Relative
+	 * @param	referenceStyle	A logical value that specifies the A1 or R1C1 reference style.
+	 *								TRUE or omitted		CELL_ADDRESS returns an A1-style reference
+	 *								FALSE				CELL_ADDRESS returns an R1C1-style reference
+	 * @param	sheetText		Optional Name of worksheet to use
+	 * @return	string
+	 */
+	public static function CELL_ADDRESS($row, $column, $relativity=1, $referenceStyle=True, $sheetText='') {
+		$row		= PHPExcel_Calculation_Functions::flattenSingleValue($row);
+		$column		= PHPExcel_Calculation_Functions::flattenSingleValue($column);
+		$relativity	= PHPExcel_Calculation_Functions::flattenSingleValue($relativity);
+		$sheetText	= PHPExcel_Calculation_Functions::flattenSingleValue($sheetText);
+
+		if (($row < 1) || ($column < 1)) {
+			return PHPExcel_Calculation_Functions::VALUE();
+		}
+
+		if ($sheetText > '') {
+			if (strpos($sheetText,' ') !== False) { $sheetText = "'".$sheetText."'"; }
+			$sheetText .='!';
+		}
+		if ((!is_bool($referenceStyle)) || $referenceStyle) {
+			$rowRelative = $columnRelative = '$';
+			$column = PHPExcel_Cell::stringFromColumnIndex($column-1);
+			if (($relativity == 2) || ($relativity == 4)) { $columnRelative = ''; }
+			if (($relativity == 3) || ($relativity == 4)) { $rowRelative = ''; }
+			return $sheetText.$columnRelative.$column.$rowRelative.$row;
+		} else {
+			if (($relativity == 2) || ($relativity == 4)) { $column = '['.$column.']'; }
+			if (($relativity == 3) || ($relativity == 4)) { $row = '['.$row.']'; }
+			return $sheetText.'R'.$row.'C'.$column;
+		}
+	}	//	function CELL_ADDRESS()
+
+
+	/**
+	 * COLUMN
+	 *
+	 * Returns the column number of the given cell reference
+	 * If the cell reference is a range of cells, COLUMN returns the column numbers of each column in the reference as a horizontal array.
+	 * If cell reference is omitted, and the function is being called through the calculation engine, then it is assumed to be the
+	 *		reference of the cell in which the COLUMN function appears; otherwise this function returns 0.
+	 *
+	 * Excel Function:
+	 *		=COLUMN([cellAddress])
+	 *
+	 * @param	cellAddress		A reference to a range of cells for which you want the column numbers
+	 * @return	integer or array of integer
+	 */
+	public static function COLUMN($cellAddress=Null) {
+		if (is_null($cellAddress) || trim($cellAddress) === '') { return 0; }
+
+		if (is_array($cellAddress)) {
+			foreach($cellAddress as $columnKey => $value) {
+				$columnKey = preg_replace('/[^a-z]/i','',$columnKey);
+				return (integer) PHPExcel_Cell::columnIndexFromString($columnKey);
+			}
+		} else {
+			if (strpos($cellAddress,'!') !== false) {
+				list($sheet,$cellAddress) = explode('!',$cellAddress);
+			}
+			if (strpos($cellAddress,':') !== false) {
+				list($startAddress,$endAddress) = explode(':',$cellAddress);
+				$startAddress = preg_replace('/[^a-z]/i','',$startAddress);
+				$endAddress = preg_replace('/[^a-z]/i','',$endAddress);
+				$returnValue = array();
+				do {
+					$returnValue[] = (integer) PHPExcel_Cell::columnIndexFromString($startAddress);
+				} while ($startAddress++ != $endAddress);
+				return $returnValue;
+			} else {
+				$cellAddress = preg_replace('/[^a-z]/i','',$cellAddress);
+				return (integer) PHPExcel_Cell::columnIndexFromString($cellAddress);
+			}
+		}
+	}	//	function COLUMN()
+
+
+	/**
+	 * COLUMNS
+	 *
+	 * Returns the number of columns in an array or reference.
+	 *
+	 * Excel Function:
+	 *		=COLUMNS(cellAddress)
+	 *
+	 * @param	cellAddress		An array or array formula, or a reference to a range of cells for which you want the number of columns
+	 * @return	integer			The number of columns in cellAddress
+	 */
+	public static function COLUMNS($cellAddress=Null) {
+		if (is_null($cellAddress) || $cellAddress === '') {
+			return 1;
+		} elseif (!is_array($cellAddress)) {
+			return PHPExcel_Calculation_Functions::VALUE();
+		}
+
+		$x = array_keys($cellAddress);
+		$x = array_shift($x);
+		$isMatrix = (is_numeric($x));
+		list($columns,$rows) = PHPExcel_Calculation::_getMatrixDimensions($cellAddress);
+
+		if ($isMatrix) {
+			return $rows;
+		} else {
+			return $columns;
+		}
+	}	//	function COLUMNS()
+
+
+	/**
+	 * ROW
+	 *
+	 * Returns the row number of the given cell reference
+	 * If the cell reference is a range of cells, ROW returns the row numbers of each row in the reference as a vertical array.
+	 * If cell reference is omitted, and the function is being called through the calculation engine, then it is assumed to be the
+	 *		reference of the cell in which the ROW function appears; otherwise this function returns 0.
+	 *
+	 * Excel Function:
+	 *		=ROW([cellAddress])
+	 *
+	 * @param	cellAddress		A reference to a range of cells for which you want the row numbers
+	 * @return	integer or array of integer
+	 */
+	public static function ROW($cellAddress=Null) {
+		if (is_null($cellAddress) || trim($cellAddress) === '') { return 0; }
+
+		if (is_array($cellAddress)) {
+			foreach($cellAddress as $columnKey => $rowValue) {
+				foreach($rowValue as $rowKey => $cellValue) {
+					return (integer) preg_replace('/[^0-9]/i','',$rowKey);
+				}
+			}
+		} else {
+			if (strpos($cellAddress,'!') !== false) {
+				list($sheet,$cellAddress) = explode('!',$cellAddress);
+			}
+			if (strpos($cellAddress,':') !== false) {
+				list($startAddress,$endAddress) = explode(':',$cellAddress);
+				$startAddress = preg_replace('/[^0-9]/','',$startAddress);
+				$endAddress = preg_replace('/[^0-9]/','',$endAddress);
+				$returnValue = array();
+				do {
+					$returnValue[][] = (integer) $startAddress;
+				} while ($startAddress++ != $endAddress);
+				return $returnValue;
+			} else {
+				list($cellAddress) = explode(':',$cellAddress);
+				return (integer) preg_replace('/[^0-9]/','',$cellAddress);
+			}
+		}
+	}	//	function ROW()
+
+
+	/**
+	 * ROWS
+	 *
+	 * Returns the number of rows in an array or reference.
+	 *
+	 * Excel Function:
+	 *		=ROWS(cellAddress)
+	 *
+	 * @param	cellAddress		An array or array formula, or a reference to a range of cells for which you want the number of rows
+	 * @return	integer			The number of rows in cellAddress
+	 */
+	public static function ROWS($cellAddress=Null) {
+		if (is_null($cellAddress) || $cellAddress === '') {
+			return 1;
+		} elseif (!is_array($cellAddress)) {
+			return PHPExcel_Calculation_Functions::VALUE();
+		}
+
+		$i = array_keys($cellAddress);
+		$isMatrix = (is_numeric(array_shift($i)));
+		list($columns,$rows) = PHPExcel_Calculation::_getMatrixDimensions($cellAddress);
+
+		if ($isMatrix) {
+			return $columns;
+		} else {
+			return $rows;
+		}
+	}	//	function ROWS()
+
+
+	/**
+	 * HYPERLINK
+	 *
+	 * Excel Function:
+	 *		=HYPERLINK(linkURL,displayName)
+	 *
+	 * @access	public
+	 * @category Logical Functions
+	 * @param	string			$linkURL		Value to check, is also the value returned when no error
+	 * @param	string			$displayName	Value to return when testValue is an error condition
+	 * @param	PHPExcel_Cell	$pCell			The cell to set the hyperlink in
+	 * @return	mixed	The value of $displayName (or $linkURL if $displayName was blank)
+	 */
+	public static function HYPERLINK($linkURL = '', $displayName = null, PHPExcel_Cell $pCell = null) {
+		$args = func_get_args();
+		$pCell = array_pop($args);
+
+		$linkURL		= (is_null($linkURL))		? '' :	PHPExcel_Calculation_Functions::flattenSingleValue($linkURL);
+		$displayName	= (is_null($displayName))	? '' :	PHPExcel_Calculation_Functions::flattenSingleValue($displayName);
+
+		if ((!is_object($pCell)) || (trim($linkURL) == '')) {
+			return PHPExcel_Calculation_Functions::REF();
+		}
+
+		if ((is_object($displayName)) || trim($displayName) == '') {
+			$displayName = $linkURL;
+		}
+
+		$pCell->getHyperlink()->setUrl($linkURL);
+
+		return $displayName;
+	}	//	function HYPERLINK()
+
+
+	/**
+	 * INDIRECT
+	 *
+	 * Returns the reference specified by a text string.
+	 * References are immediately evaluated to display their contents.
+	 *
+	 * Excel Function:
+	 *		=INDIRECT(cellAddress)
+	 *
+	 * NOTE - INDIRECT() does not yet support the optional a1 parameter introduced in Excel 2010
+	 *
+	 * @param	cellAddress		$cellAddress	The cell address of the current cell (containing this formula)
+	 * @param	PHPExcel_Cell	$pCell			The current cell (containing this formula)
+	 * @return	mixed			The cells referenced by cellAddress
+	 *
+	 * @todo	Support for the optional a1 parameter introduced in Excel 2010
+	 *
+	 */
+	public static function INDIRECT($cellAddress = NULL, PHPExcel_Cell $pCell = NULL) {
+		$cellAddress	= PHPExcel_Calculation_Functions::flattenSingleValue($cellAddress);
+		if (is_null($cellAddress) || $cellAddress === '') {
+			return PHPExcel_Calculation_Functions::REF();
+		}
+
+		$cellAddress1 = $cellAddress;
+		$cellAddress2 = NULL;
+		if (strpos($cellAddress,':') !== false) {
+			list($cellAddress1,$cellAddress2) = explode(':',$cellAddress);
+		}
+
+		if ((!preg_match('/^'.PHPExcel_Calculation::CALCULATION_REGEXP_CELLREF.'$/i', $cellAddress1, $matches)) ||
+			((!is_null($cellAddress2)) && (!preg_match('/^'.PHPExcel_Calculation::CALCULATION_REGEXP_CELLREF.'$/i', $cellAddress2, $matches)))) {
+			if (!preg_match('/^'.PHPExcel_Calculation::CALCULATION_REGEXP_NAMEDRANGE.'$/i', $cellAddress1, $matches)) {
+				return PHPExcel_Calculation_Functions::REF();
+			}
+
+			if (strpos($cellAddress,'!') !== FALSE) {
+				list($sheetName, $cellAddress) = explode('!',$cellAddress);
+				$sheetName = trim($sheetName, "'");
+				$pSheet = $pCell->getWorksheet()->getParent()->getSheetByName($sheetName);
+			} else {
+				$pSheet = $pCell->getWorksheet();
+			}
+
+			return PHPExcel_Calculation::getInstance()->extractNamedRange($cellAddress, $pSheet, FALSE);
+		}
+
+		if (strpos($cellAddress,'!') !== FALSE) {
+			list($sheetName,$cellAddress) = explode('!',$cellAddress);
+			$sheetName = trim($sheetName, "'");
+			$pSheet = $pCell->getWorksheet()->getParent()->getSheetByName($sheetName);
+		} else {
+			$pSheet = $pCell->getWorksheet();
+		}
+
+		return PHPExcel_Calculation::getInstance()->extractCellRange($cellAddress, $pSheet, FALSE);
+	}	//	function INDIRECT()
+
+
+	/**
+	 * OFFSET
+	 *
+	 * Returns a reference to a range that is a specified number of rows and columns from a cell or range of cells.
+	 * The reference that is returned can be a single cell or a range of cells. You can specify the number of rows and
+	 * the number of columns to be returned.
+	 *
+	 * Excel Function:
+	 *		=OFFSET(cellAddress, rows, cols, [height], [width])
+	 *
+	 * @param	cellAddress		The reference from which you want to base the offset. Reference must refer to a cell or
+	 *								range of adjacent cells; otherwise, OFFSET returns the #VALUE! error value.
+	 * @param	rows			The number of rows, up or down, that you want the upper-left cell to refer to.
+	 *								Using 5 as the rows argument specifies that the upper-left cell in the reference is
+	 *								five rows below reference. Rows can be positive (which means below the starting reference)
+	 *								or negative (which means above the starting reference).
+	 * @param	cols			The number of columns, to the left or right, that you want the upper-left cell of the result
+	 *								to refer to. Using 5 as the cols argument specifies that the upper-left cell in the
+	 *								reference is five columns to the right of reference. Cols can be positive (which means
+	 *								to the right of the starting reference) or negative (which means to the left of the
+	 *								starting reference).
+	 * @param	height			The height, in number of rows, that you want the returned reference to be. Height must be a positive number.
+	 * @param	width			The width, in number of columns, that you want the returned reference to be. Width must be a positive number.
+	 * @return	string			A reference to a cell or range of cells
+	 */
+	public static function OFFSET($cellAddress=Null,$rows=0,$columns=0,$height=null,$width=null) {
+		$rows		= PHPExcel_Calculation_Functions::flattenSingleValue($rows);
+		$columns	= PHPExcel_Calculation_Functions::flattenSingleValue($columns);
+		$height		= PHPExcel_Calculation_Functions::flattenSingleValue($height);
+		$width		= PHPExcel_Calculation_Functions::flattenSingleValue($width);
+		if ($cellAddress == Null) {
+			return 0;
+		}
+
+		$args = func_get_args();
+		$pCell = array_pop($args);
+		if (!is_object($pCell)) {
+			return PHPExcel_Calculation_Functions::REF();
+		}
+
+		$sheetName = NULL;
+		if (strpos($cellAddress,"!")) {
+			list($sheetName,$cellAddress) = explode("!",$cellAddress);
+			$sheetName = trim($sheetName, "'");
+		}
+		if (strpos($cellAddress,":")) {
+			list($startCell,$endCell) = explode(":",$cellAddress);
+		} else {
+			$startCell = $endCell = $cellAddress;
+		}
+		list($startCellColumn,$startCellRow) = PHPExcel_Cell::coordinateFromString($startCell);
+		list($endCellColumn,$endCellRow) = PHPExcel_Cell::coordinateFromString($endCell);
+
+		$startCellRow += $rows;
+		$startCellColumn = PHPExcel_Cell::columnIndexFromString($startCellColumn) - 1;
+		$startCellColumn += $columns;
+
+		if (($startCellRow <= 0) || ($startCellColumn < 0)) {
+			return PHPExcel_Calculation_Functions::REF();
+		}
+		$endCellColumn = PHPExcel_Cell::columnIndexFromString($endCellColumn) - 1;
+		if (($width != null) && (!is_object($width))) {
+			$endCellColumn = $startCellColumn + $width - 1;
+		} else {
+			$endCellColumn += $columns;
+		}
+		$startCellColumn = PHPExcel_Cell::stringFromColumnIndex($startCellColumn);
+
+		if (($height != null) && (!is_object($height))) {
+			$endCellRow = $startCellRow + $height - 1;
+		} else {
+			$endCellRow += $rows;
+		}
+
+		if (($endCellRow <= 0) || ($endCellColumn < 0)) {
+			return PHPExcel_Calculation_Functions::REF();
+		}
+		$endCellColumn = PHPExcel_Cell::stringFromColumnIndex($endCellColumn);
+
+		$cellAddress = $startCellColumn.$startCellRow;
+		if (($startCellColumn != $endCellColumn) || ($startCellRow != $endCellRow)) {
+			$cellAddress .= ':'.$endCellColumn.$endCellRow;
+		}
+
+		if ($sheetName !== NULL) {
+			$pSheet = $pCell->getWorksheet()->getParent()->getSheetByName($sheetName);
+		} else {
+			$pSheet = $pCell->getWorksheet();
+		}
+
+		return PHPExcel_Calculation::getInstance()->extractCellRange($cellAddress, $pSheet, False);
+	}	//	function OFFSET()
+
+
+	/**
+	 * CHOOSE
+	 *
+	 * Uses lookup_value to return a value from the list of value arguments.
+	 * Use CHOOSE to select one of up to 254 values based on the lookup_value.
+	 *
+	 * Excel Function:
+	 *		=CHOOSE(index_num, value1, [value2], ...)
+	 *
+	 * @param	index_num		Specifies which value argument is selected.
+	 *							Index_num must be a number between 1 and 254, or a formula or reference to a cell containing a number
+	 *								between 1 and 254.
+	 * @param	value1...		Value1 is required, subsequent values are optional.
+	 *							Between 1 to 254 value arguments from which CHOOSE selects a value or an action to perform based on
+	 *								index_num. The arguments can be numbers, cell references, defined names, formulas, functions, or
+	 *								text.
+	 * @return	mixed			The selected value
+	 */
+	public static function CHOOSE() {
+		$chooseArgs = func_get_args();
+		$chosenEntry = PHPExcel_Calculation_Functions::flattenArray(array_shift($chooseArgs));
+		$entryCount = count($chooseArgs) - 1;
+
+		if(is_array($chosenEntry)) {
+			$chosenEntry = array_shift($chosenEntry);
+		}
+		if ((is_numeric($chosenEntry)) && (!is_bool($chosenEntry))) {
+			--$chosenEntry;
+		} else {
+			return PHPExcel_Calculation_Functions::VALUE();
+		}
+		$chosenEntry = floor($chosenEntry);
+		if (($chosenEntry < 0) || ($chosenEntry > $entryCount)) {
+			return PHPExcel_Calculation_Functions::VALUE();
+		}
+
+		if (is_array($chooseArgs[$chosenEntry])) {
+			return PHPExcel_Calculation_Functions::flattenArray($chooseArgs[$chosenEntry]);
+		} else {
+			return $chooseArgs[$chosenEntry];
+		}
+	}	//	function CHOOSE()
+
+
+	/**
+	 * MATCH
+	 *
+	 * The MATCH function searches for a specified item in a range of cells
+	 *
+	 * Excel Function:
+	 *		=MATCH(lookup_value, lookup_array, [match_type])
+	 *
+	 * @param	lookup_value	The value that you want to match in lookup_array
+	 * @param	lookup_array	The range of cells being searched
+	 * @param	match_type		The number -1, 0, or 1. -1 means above, 0 means exact match, 1 means below. If match_type is 1 or -1, the list has to be ordered.
+	 * @return	integer			The relative position of the found item
+	 */
+	public static function MATCH($lookup_value, $lookup_array, $match_type=1) {
+		$lookup_array = PHPExcel_Calculation_Functions::flattenArray($lookup_array);
+		$lookup_value = PHPExcel_Calculation_Functions::flattenSingleValue($lookup_value);
+		$match_type	= (is_null($match_type)) ? 1 : (int) PHPExcel_Calculation_Functions::flattenSingleValue($match_type);
+		//	MATCH is not case sensitive
+		$lookup_value = strtolower($lookup_value);
+
+		//	lookup_value type has to be number, text, or logical values
+		if ((!is_numeric($lookup_value)) && (!is_string($lookup_value)) && (!is_bool($lookup_value))) {
+			return PHPExcel_Calculation_Functions::NA();
+		}
+
+		//	match_type is 0, 1 or -1
+		if (($match_type !== 0) && ($match_type !== -1) && ($match_type !== 1)) {
+			return PHPExcel_Calculation_Functions::NA();
+		}
+
+		//	lookup_array should not be empty
+		$lookupArraySize = count($lookup_array);
+		if ($lookupArraySize <= 0) {
+			return PHPExcel_Calculation_Functions::NA();
+		}
+
+		//	lookup_array should contain only number, text, or logical values, or empty (null) cells
+		foreach($lookup_array as $i => $lookupArrayValue) {
+			//	check the type of the value
+			if ((!is_numeric($lookupArrayValue)) && (!is_string($lookupArrayValue)) &&
+				(!is_bool($lookupArrayValue)) && (!is_null($lookupArrayValue))) {
+				return PHPExcel_Calculation_Functions::NA();
+			}
+			//	convert strings to lowercase for case-insensitive testing
+			if (is_string($lookupArrayValue)) {
+				$lookup_array[$i] = strtolower($lookupArrayValue);
+			}
+			if ((is_null($lookupArrayValue)) && (($match_type == 1) || ($match_type == -1))) {
+				$lookup_array = array_slice($lookup_array,0,$i-1);
+			}
+		}
+
+		// if match_type is 1 or -1, the list has to be ordered
+		if ($match_type == 1) {
+			asort($lookup_array);
+			$keySet = array_keys($lookup_array);
+		} elseif($match_type == -1) {
+			arsort($lookup_array);
+			$keySet = array_keys($lookup_array);
+		}
+
+		// **
+		// find the match
+		// **
+		// loop on the cells
+//		var_dump($lookup_array);
+//		echo '<br />';
+		foreach($lookup_array as $i => $lookupArrayValue) {
+			if (($match_type == 0) && ($lookupArrayValue == $lookup_value)) {
+				//	exact match
+				return ++$i;
+			} elseif (($match_type == -1) && ($lookupArrayValue <= $lookup_value)) {
+//				echo '$i = '.$i.' => ';
+//				var_dump($lookupArrayValue);
+//				echo '<br />';
+//				echo 'Keyset = ';
+//				var_dump($keySet);
+//				echo '<br />';
+				$i = array_search($i,$keySet);
+//				echo '$i='.$i.'<br />';
+				// if match_type is -1 <=> find the smallest value that is greater than or equal to lookup_value
+				if ($i < 1){
+					// 1st cell was allready smaller than the lookup_value
+					break;
+				} else {
+					// the previous cell was the match
+					return $keySet[$i-1]+1;
+				}
+			} elseif (($match_type == 1) && ($lookupArrayValue >= $lookup_value)) {
+//				echo '$i = '.$i.' => ';
+//				var_dump($lookupArrayValue);
+//				echo '<br />';
+//				echo 'Keyset = ';
+//				var_dump($keySet);
+//				echo '<br />';
+				$i = array_search($i,$keySet);
+//				echo '$i='.$i.'<br />';
+				// if match_type is 1 <=> find the largest value that is less than or equal to lookup_value
+				if ($i < 1){
+					// 1st cell was allready bigger than the lookup_value
+					break;
+				} else {
+					// the previous cell was the match
+					return $keySet[$i-1]+1;
+				}
+			}
+		}
+
+		//	unsuccessful in finding a match, return #N/A error value
+		return PHPExcel_Calculation_Functions::NA();
+	}	//	function MATCH()
+
+
+	/**
+	 * INDEX
+	 *
+	 * Uses an index to choose a value from a reference or array
+	 *
+	 * Excel Function:
+	 *		=INDEX(range_array, row_num, [column_num])
+	 *
+	 * @param	range_array		A range of cells or an array constant
+	 * @param	row_num			The row in array from which to return a value. If row_num is omitted, column_num is required.
+	 * @param	column_num		The column in array from which to return a value. If column_num is omitted, row_num is required.
+	 * @return	mixed			the value of a specified cell or array of cells
+	 */
+	public static function INDEX($arrayValues,$rowNum = 0,$columnNum = 0) {
+
+		if (($rowNum < 0) || ($columnNum < 0)) {
+			return PHPExcel_Calculation_Functions::VALUE();
+		}
+
+		if (!is_array($arrayValues)) {
+			return PHPExcel_Calculation_Functions::REF();
+		}
+
+		$rowKeys = array_keys($arrayValues);
+		$columnKeys = @array_keys($arrayValues[$rowKeys[0]]);
+
+		if ($columnNum > count($columnKeys)) {
+			return PHPExcel_Calculation_Functions::VALUE();
+		} elseif ($columnNum == 0) {
+			if ($rowNum == 0) {
+				return $arrayValues;
+			}
+			$rowNum = $rowKeys[--$rowNum];
+			$returnArray = array();
+			foreach($arrayValues as $arrayColumn) {
+				if (is_array($arrayColumn)) {
+					if (isset($arrayColumn[$rowNum])) {
+						$returnArray[] = $arrayColumn[$rowNum];
+					} else {
+						return $arrayValues[$rowNum];
+					}
+				} else {
+					return $arrayValues[$rowNum];
+				}
+			}
+			return $returnArray;
+		}
+		$columnNum = $columnKeys[--$columnNum];
+		if ($rowNum > count($rowKeys)) {
+			return PHPExcel_Calculation_Functions::VALUE();
+		} elseif ($rowNum == 0) {
+			return $arrayValues[$columnNum];
+		}
+		$rowNum = $rowKeys[--$rowNum];
+
+		return $arrayValues[$rowNum][$columnNum];
+	}	//	function INDEX()
+
+
+	/**
+	 * TRANSPOSE
+	 *
+	 * @param	array	$matrixData	A matrix of values
+	 * @return	array
+	 *
+	 * Unlike the Excel TRANSPOSE function, which will only work on a single row or column, this function will transpose a full matrix.
+	 */
+	public static function TRANSPOSE($matrixData) {
+		$returnMatrix = array();
+		if (!is_array($matrixData)) { $matrixData = array(array($matrixData)); }
+
+		$column = 0;
+		foreach($matrixData as $matrixRow) {
+			$row = 0;
+			foreach($matrixRow as $matrixCell) {
+				$returnMatrix[$row][$column] = $matrixCell;
+				++$row;
+			}
+			++$column;
+		}
+		return $returnMatrix;
+	}	//	function TRANSPOSE()
+
+
+	private static function _vlookupSort($a,$b) {
+		$f = array_keys($a);
+		$firstColumn = array_shift($f);
+		if (strtolower($a[$firstColumn]) == strtolower($b[$firstColumn])) {
+			return 0;
+		}
+		return (strtolower($a[$firstColumn]) < strtolower($b[$firstColumn])) ? -1 : 1;
+	}	//	function _vlookupSort()
+
+
+	/**
+	* VLOOKUP
+	* The VLOOKUP function searches for value in the left-most column of lookup_array and returns the value in the same row based on the index_number.
+	* @param	lookup_value	The value that you want to match in lookup_array
+	* @param	lookup_array	The range of cells being searched
+	* @param	index_number	The column number in table_array from which the matching value must be returned. The first column is 1.
+	* @param	not_exact_match	Determines if you are looking for an exact match based on lookup_value.
+	* @return	mixed			The value of the found cell
+	*/
+	public static function VLOOKUP($lookup_value, $lookup_array, $index_number, $not_exact_match=true) {
+		$lookup_value	= PHPExcel_Calculation_Functions::flattenSingleValue($lookup_value);
+		$index_number	= PHPExcel_Calculation_Functions::flattenSingleValue($index_number);
+		$not_exact_match	= PHPExcel_Calculation_Functions::flattenSingleValue($not_exact_match);
+
+		// index_number must be greater than or equal to 1
+		if ($index_number < 1) {
+			return PHPExcel_Calculation_Functions::VALUE();
+		}
+
+		// index_number must be less than or equal to the number of columns in lookup_array
+		if ((!is_array($lookup_array)) || (empty($lookup_array))) {
+			return PHPExcel_Calculation_Functions::REF();
+		} else {
+			$f = array_keys($lookup_array);
+			$firstRow = array_pop($f);
+			if ((!is_array($lookup_array[$firstRow])) || ($index_number > count($lookup_array[$firstRow]))) {
+				return PHPExcel_Calculation_Functions::REF();
+			} else {
+				$columnKeys = array_keys($lookup_array[$firstRow]);
+				$returnColumn = $columnKeys[--$index_number];
+				$firstColumn = array_shift($columnKeys);
+			}
+		}
+
+		if (!$not_exact_match) {
+			uasort($lookup_array,array('self','_vlookupSort'));
+		}
+
+		$rowNumber = $rowValue = False;
+		foreach($lookup_array as $rowKey => $rowData) {
+			if ((is_numeric($lookup_value) && is_numeric($rowData[$firstColumn]) && ($rowData[$firstColumn] > $lookup_value)) ||
+				(!is_numeric($lookup_value) && !is_numeric($rowData[$firstColumn]) && (strtolower($rowData[$firstColumn]) > strtolower($lookup_value)))) {
+				break;
+			}
+			$rowNumber = $rowKey;
+			$rowValue = $rowData[$firstColumn];
+		}
+
+		if ($rowNumber !== false) {
+			if ((!$not_exact_match) && ($rowValue != $lookup_value)) {
+				//	if an exact match is required, we have what we need to return an appropriate response
+				return PHPExcel_Calculation_Functions::NA();
+			} else {
+				//	otherwise return the appropriate value
+				return $lookup_array[$rowNumber][$returnColumn];
+			}
+		}
+
+		return PHPExcel_Calculation_Functions::NA();
+	}	//	function VLOOKUP()
+
+
+/**
+    * HLOOKUP
+    * The HLOOKUP function searches for value in the top-most row of lookup_array and returns the value in the same column based on the index_number.
+    * @param    lookup_value    The value that you want to match in lookup_array
+    * @param    lookup_array    The range of cells being searched
+    * @param    index_number    The row number in table_array from which the matching value must be returned. The first row is 1.
+    * @param    not_exact_match Determines if you are looking for an exact match based on lookup_value.
+    * @return   mixed           The value of the found cell
+    */
+    public static function HLOOKUP($lookup_value, $lookup_array, $index_number, $not_exact_match=true) {
+        $lookup_value   = PHPExcel_Calculation_Functions::flattenSingleValue($lookup_value);
+        $index_number   = PHPExcel_Calculation_Functions::flattenSingleValue($index_number);
+        $not_exact_match    = PHPExcel_Calculation_Functions::flattenSingleValue($not_exact_match);
+
+        // index_number must be greater than or equal to 1
+        if ($index_number < 1) {
+            return PHPExcel_Calculation_Functions::VALUE();
+        }
+
+        // index_number must be less than or equal to the number of columns in lookup_array
+        if ((!is_array($lookup_array)) || (empty($lookup_array))) {
+            return PHPExcel_Calculation_Functions::REF();
+        } else {
+            $f = array_keys($lookup_array);
+            $firstRow = array_pop($f);
+            if ((!is_array($lookup_array[$firstRow])) || ($index_number > count($lookup_array[$firstRow]))) {
+                return PHPExcel_Calculation_Functions::REF();
+            } else {
+                $columnKeys = array_keys($lookup_array[$firstRow]);
+                                $firstkey = $f[0] - 1;
+                $returnColumn = $firstkey + $index_number;
+                $firstColumn = array_shift($f);
+            }
+        }
+
+        if (!$not_exact_match) {
+            $firstRowH = asort($lookup_array[$firstColumn]);
+        }
+
+        $rowNumber = $rowValue = False;
+        foreach($lookup_array[$firstColumn] as $rowKey => $rowData) {
+			if ((is_numeric($lookup_value) && is_numeric($rowData) && ($rowData > $lookup_value)) ||
+				(!is_numeric($lookup_value) && !is_numeric($rowData) && (strtolower($rowData) > strtolower($lookup_value)))) {
+                break;
+            }
+            $rowNumber = $rowKey;
+            $rowValue = $rowData;
+        }
+
+        if ($rowNumber !== false) {
+            if ((!$not_exact_match) && ($rowValue != $lookup_value)) {
+                //  if an exact match is required, we have what we need to return an appropriate response
+                return PHPExcel_Calculation_Functions::NA();
+            } else {
+                //  otherwise return the appropriate value
+                return $lookup_array[$returnColumn][$rowNumber];
+            }
+        }
+
+        return PHPExcel_Calculation_Functions::NA();
+    }   //  function HLOOKUP()
+
+
+	/**
+	 * LOOKUP
+	 * The LOOKUP function searches for value either from a one-row or one-column range or from an array.
+	 * @param	lookup_value	The value that you want to match in lookup_array
+	 * @param	lookup_vector	The range of cells being searched
+	 * @param	result_vector	The column from which the matching value must be returned
+	 * @return	mixed			The value of the found cell
+	 */
+	public static function LOOKUP($lookup_value, $lookup_vector, $result_vector=null) {
+		$lookup_value	= PHPExcel_Calculation_Functions::flattenSingleValue($lookup_value);
+
+		if (!is_array($lookup_vector)) {
+			return PHPExcel_Calculation_Functions::NA();
+		}
+		$lookupRows = count($lookup_vector);
+		$l = array_keys($lookup_vector);
+		$l = array_shift($l);
+		$lookupColumns = count($lookup_vector[$l]);
+		if ((($lookupRows == 1) && ($lookupColumns > 1)) || (($lookupRows == 2) && ($lookupColumns != 2))) {
+			$lookup_vector = self::TRANSPOSE($lookup_vector);
+			$lookupRows = count($lookup_vector);
+			$l = array_keys($lookup_vector);
+			$lookupColumns = count($lookup_vector[array_shift($l)]);
+		}
+
+		if (is_null($result_vector)) {
+			$result_vector = $lookup_vector;
+		}
+		$resultRows = count($result_vector);
+		$l = array_keys($result_vector);
+		$l = array_shift($l);
+		$resultColumns = count($result_vector[$l]);
+		if ((($resultRows == 1) && ($resultColumns > 1)) || (($resultRows == 2) && ($resultColumns != 2))) {
+			$result_vector = self::TRANSPOSE($result_vector);
+			$resultRows = count($result_vector);
+			$r = array_keys($result_vector);
+			$resultColumns = count($result_vector[array_shift($r)]);
+		}
+
+		if ($lookupRows == 2) {
+			$result_vector = array_pop($lookup_vector);
+			$lookup_vector = array_shift($lookup_vector);
+		}
+		if ($lookupColumns != 2) {
+			foreach($lookup_vector as &$value) {
+				if (is_array($value)) {
+					$k = array_keys($value);
+					$key1 = $key2 = array_shift($k);
+					$key2++;
+					$dataValue1 = $value[$key1];
+				} else {
+					$key1 = 0;
+					$key2 = 1;
+					$dataValue1 = $value;
+				}
+				$dataValue2 = array_shift($result_vector);
+				if (is_array($dataValue2)) {
+					$dataValue2 = array_shift($dataValue2);
+				}
+				$value = array($key1 => $dataValue1, $key2 => $dataValue2);
+			}
+			unset($value);
+		}
+
+		return self::VLOOKUP($lookup_value,$lookup_vector,2);
+ 	}	//	function LOOKUP()
+
+}	//	class PHPExcel_Calculation_LookupRef

includes/PHPExcel/Classes/PHPExcel/Calculation/TextData.php

@@ -0,0 +1,630 @@
+<?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 root directory */
+if (!defined('PHPEXCEL_ROOT')) {
+	/**
+	 * @ignore
+	 */
+	define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../');
+	require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');
+}
+
+
+/**
+ * PHPExcel_Calculation_TextData
+ *
+ * @category	PHPExcel
+ * @package		PHPExcel_Calculation
+ * @copyright	Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
+ */
+class PHPExcel_Calculation_TextData {
+
+	private static $_invalidChars = Null;
+
+	private static function _uniord($c) {
+		if (ord($c{0}) >=0 && ord($c{0}) <= 127)
+			return ord($c{0});
+		if (ord($c{0}) >= 192 && ord($c{0}) <= 223)
+			return (ord($c{0})-192)*64 + (ord($c{1})-128);
+		if (ord($c{0}) >= 224 && ord($c{0}) <= 239)
+			return (ord($c{0})-224)*4096 + (ord($c{1})-128)*64 + (ord($c{2})-128);
+		if (ord($c{0}) >= 240 && ord($c{0}) <= 247)
+			return (ord($c{0})-240)*262144 + (ord($c{1})-128)*4096 + (ord($c{2})-128)*64 + (ord($c{3})-128);
+		if (ord($c{0}) >= 248 && ord($c{0}) <= 251)
+			return (ord($c{0})-248)*16777216 + (ord($c{1})-128)*262144 + (ord($c{2})-128)*4096 + (ord($c{3})-128)*64 + (ord($c{4})-128);
+		if (ord($c{0}) >= 252 && ord($c{0}) <= 253)
+			return (ord($c{0})-252)*1073741824 + (ord($c{1})-128)*16777216 + (ord($c{2})-128)*262144 + (ord($c{3})-128)*4096 + (ord($c{4})-128)*64 + (ord($c{5})-128);
+		if (ord($c{0}) >= 254 && ord($c{0}) <= 255) //error
+			return PHPExcel_Calculation_Functions::VALUE();
+		return 0;
+	}	//	function _uniord()
+
+	/**
+	 * CHARACTER
+	 *
+	 * @param	string	$character	Value
+	 * @return	int
+	 */
+	public static function CHARACTER($character) {
+		$character	= PHPExcel_Calculation_Functions::flattenSingleValue($character);
+
+		if ((!is_numeric($character)) || ($character < 0)) {
+			return PHPExcel_Calculation_Functions::VALUE();
+		}
+
+		if (function_exists('mb_convert_encoding')) {
+			return mb_convert_encoding('&#'.intval($character).';', 'UTF-8', 'HTML-ENTITIES');
+		} else {
+			return chr(intval($character));
+		}
+	}
+
+
+	/**
+	 * TRIMNONPRINTABLE
+	 *
+	 * @param	mixed	$stringValue	Value to check
+	 * @return	string
+	 */
+	public static function TRIMNONPRINTABLE($stringValue = '') {
+		$stringValue	= PHPExcel_Calculation_Functions::flattenSingleValue($stringValue);
+
+		if (is_bool($stringValue)) {
+			return ($stringValue) ? PHPExcel_Calculation::getTRUE() : PHPExcel_Calculation::getFALSE();
+		}
+
+		if (self::$_invalidChars == Null) {
+			self::$_invalidChars = range(chr(0),chr(31));
+		}
+
+		if (is_string($stringValue) || is_numeric($stringValue)) {
+			return str_replace(self::$_invalidChars, '', trim($stringValue, "\x00..\x1F"));
+		}
+		return NULL;
+	}	//	function TRIMNONPRINTABLE()
+
+
+	/**
+	 * TRIMSPACES
+	 *
+	 * @param	mixed	$stringValue	Value to check
+	 * @return	string
+	 */
+	public static function TRIMSPACES($stringValue = '') {
+		$stringValue	= PHPExcel_Calculation_Functions::flattenSingleValue($stringValue);
+		if (is_bool($stringValue)) {
+			return ($stringValue) ? PHPExcel_Calculation::getTRUE() : PHPExcel_Calculation::getFALSE();
+		}
+
+		if (is_string($stringValue) || is_numeric($stringValue)) {
+			return trim(preg_replace('/ +/',' ',trim($stringValue, ' ')), ' ');
+		}
+		return NULL;
+	}	//	function TRIMSPACES()
+
+
+	/**
+	 * ASCIICODE
+	 *
+	 * @param	string	$characters		Value
+	 * @return	int
+	 */
+	public static function ASCIICODE($characters) {
+		if (($characters === NULL) || ($characters === ''))
+			return PHPExcel_Calculation_Functions::VALUE();
+		$characters	= PHPExcel_Calculation_Functions::flattenSingleValue($characters);
+		if (is_bool($characters)) {
+			if (PHPExcel_Calculation_Functions::getCompatibilityMode() == PHPExcel_Calculation_Functions::COMPATIBILITY_OPENOFFICE) {
+				$characters = (int) $characters;
+			} else {
+				$characters = ($characters) ? PHPExcel_Calculation::getTRUE() : PHPExcel_Calculation::getFALSE();
+			}
+		}
+
+		$character = $characters;
+		if ((function_exists('mb_strlen')) && (function_exists('mb_substr'))) {
+			if (mb_strlen($characters, 'UTF-8') > 1) { $character = mb_substr($characters, 0, 1, 'UTF-8'); }
+			return self::_uniord($character);
+		} else {
+			if (strlen($characters) > 0) { $character = substr($characters, 0, 1); }
+			return ord($character);
+		}
+	}	//	function ASCIICODE()
+
+
+	/**
+	 * CONCATENATE
+	 *
+	 * @return	string
+	 */
+	public static function CONCATENATE() {
+		// Return value
+		$returnValue = '';
+
+		// Loop through arguments
+		$aArgs = PHPExcel_Calculation_Functions::flattenArray(func_get_args());
+		foreach ($aArgs as $arg) {
+			if (is_bool($arg)) {
+				if (PHPExcel_Calculation_Functions::getCompatibilityMode() == PHPExcel_Calculation_Functions::COMPATIBILITY_OPENOFFICE) {
+					$arg = (int) $arg;
+				} else {
+					$arg = ($arg) ? PHPExcel_Calculation::getTRUE() : PHPExcel_Calculation::getFALSE();
+				}
+			}
+			$returnValue .= $arg;
+		}
+
+		// Return
+		return $returnValue;
+	}	//	function CONCATENATE()
+
+
+	/**
+	 * DOLLAR
+	 *
+	 * This function converts a number to text using currency format, with the decimals rounded to the specified place.
+	 * The format used is $#,##0.00_);($#,##0.00)..
+	 *
+	 * @param	float	$value			The value to format
+	 * @param	int		$decimals		The number of digits to display to the right of the decimal point.
+	 *									If decimals is negative, number is rounded to the left of the decimal point.
+	 *									If you omit decimals, it is assumed to be 2
+	 * @return	string
+	 */
+	public static function DOLLAR($value = 0, $decimals = 2) {
+		$value		= PHPExcel_Calculation_Functions::flattenSingleValue($value);
+		$decimals	= is_null($decimals) ? 0 : PHPExcel_Calculation_Functions::flattenSingleValue($decimals);
+
+		// Validate parameters
+		if (!is_numeric($value) || !is_numeric($decimals)) {
+			return PHPExcel_Calculation_Functions::NaN();
+		}
+		$decimals = floor($decimals);
+
+		$mask = '$#,##0';
+		if ($decimals > 0) {
+			$mask .= '.' . str_repeat('0',$decimals);
+		} else {
+			$round = pow(10,abs($decimals));
+			if ($value < 0) { $round = 0-$round; }
+			$value = PHPExcel_Calculation_MathTrig::MROUND($value, $round);
+		}
+
+		return PHPExcel_Style_NumberFormat::toFormattedString($value, $mask);
+
+	}	//	function DOLLAR()
+
+
+	/**
+	 * SEARCHSENSITIVE
+	 *
+	 * @param	string	$needle		The string to look for
+	 * @param	string	$haystack	The string in which to look
+	 * @param	int		$offset		Offset within $haystack
+	 * @return	string
+	 */
+	public static function SEARCHSENSITIVE($needle,$haystack,$offset=1) {
+		$needle		= PHPExcel_Calculation_Functions::flattenSingleValue($needle);
+		$haystack	= PHPExcel_Calculation_Functions::flattenSingleValue($haystack);
+		$offset		= PHPExcel_Calculation_Functions::flattenSingleValue($offset);
+
+		if (!is_bool($needle)) {
+			if (is_bool($haystack)) {
+				$haystack = ($haystack) ? PHPExcel_Calculation::getTRUE() : PHPExcel_Calculation::getFALSE();
+			}
+
+			if (($offset > 0) && (PHPExcel_Shared_String::CountCharacters($haystack) > $offset)) {
+				if (PHPExcel_Shared_String::CountCharacters($needle) == 0) {
+					return $offset;
+				}
+				if (function_exists('mb_strpos')) {
+					$pos = mb_strpos($haystack, $needle, --$offset, 'UTF-8');
+				} else {
+					$pos = strpos($haystack, $needle, --$offset);
+				}
+				if ($pos !== false) {
+					return ++$pos;
+				}
+			}
+		}
+		return PHPExcel_Calculation_Functions::VALUE();
+	}	//	function SEARCHSENSITIVE()
+
+
+	/**
+	 * SEARCHINSENSITIVE
+	 *
+	 * @param	string	$needle		The string to look for
+	 * @param	string	$haystack	The string in which to look
+	 * @param	int		$offset		Offset within $haystack
+	 * @return	string
+	 */
+	public static function SEARCHINSENSITIVE($needle,$haystack,$offset=1) {
+		$needle		= PHPExcel_Calculation_Functions::flattenSingleValue($needle);
+		$haystack	= PHPExcel_Calculation_Functions::flattenSingleValue($haystack);
+		$offset		= PHPExcel_Calculation_Functions::flattenSingleValue($offset);
+
+		if (!is_bool($needle)) {
+			if (is_bool($haystack)) {
+				$haystack = ($haystack) ? PHPExcel_Calculation::getTRUE() : PHPExcel_Calculation::getFALSE();
+			}
+
+			if (($offset > 0) && (PHPExcel_Shared_String::CountCharacters($haystack) > $offset)) {
+				if (PHPExcel_Shared_String::CountCharacters($needle) == 0) {
+					return $offset;
+				}
+				if (function_exists('mb_stripos')) {
+					$pos = mb_stripos($haystack, $needle, --$offset,'UTF-8');
+				} else {
+					$pos = stripos($haystack, $needle, --$offset);
+				}
+				if ($pos !== false) {
+					return ++$pos;
+				}
+			}
+		}
+		return PHPExcel_Calculation_Functions::VALUE();
+	}	//	function SEARCHINSENSITIVE()
+
+
+	/**
+	 * FIXEDFORMAT
+	 *
+	 * @param	mixed		$value	Value to check
+	 * @param	integer		$decimals
+	 * @param	boolean		$no_commas
+	 * @return	boolean
+	 */
+	public static function FIXEDFORMAT($value, $decimals = 2, $no_commas = FALSE) {
+		$value		= PHPExcel_Calculation_Functions::flattenSingleValue($value);
+		$decimals	= PHPExcel_Calculation_Functions::flattenSingleValue($decimals);
+		$no_commas	= PHPExcel_Calculation_Functions::flattenSingleValue($no_commas);
+
+		// Validate parameters
+		if (!is_numeric($value) || !is_numeric($decimals)) {
+			return PHPExcel_Calculation_Functions::NaN();
+		}
+		$decimals = floor($decimals);
+
+		$valueResult = round($value,$decimals);
+		if ($decimals < 0) { $decimals = 0; }
+		if (!$no_commas) {
+			$valueResult = number_format($valueResult,$decimals);
+		}
+
+		return (string) $valueResult;
+	}	//	function FIXEDFORMAT()
+
+
+	/**
+	 * LEFT
+	 *
+	 * @param	string	$value	Value
+	 * @param	int		$chars	Number of characters
+	 * @return	string
+	 */
+	public static function LEFT($value = '', $chars = 1) {
+		$value		= PHPExcel_Calculation_Functions::flattenSingleValue($value);
+		$chars		= PHPExcel_Calculation_Functions::flattenSingleValue($chars);
+
+		if ($chars < 0) {
+			return PHPExcel_Calculation_Functions::VALUE();
+		}
+
+		if (is_bool($value)) {
+			$value = ($value) ? PHPExcel_Calculation::getTRUE() : PHPExcel_Calculation::getFALSE();
+		}
+
+		if (function_exists('mb_substr')) {
+			return mb_substr($value, 0, $chars, 'UTF-8');
+		} else {
+			return substr($value, 0, $chars);
+		}
+	}	//	function LEFT()
+
+
+	/**
+	 * MID
+	 *
+	 * @param	string	$value	Value
+	 * @param	int		$start	Start character
+	 * @param	int		$chars	Number of characters
+	 * @return	string
+	 */
+	public static function MID($value = '', $start = 1, $chars = null) {
+		$value		= PHPExcel_Calculation_Functions::flattenSingleValue($value);
+		$start		= PHPExcel_Calculation_Functions::flattenSingleValue($start);
+		$chars		= PHPExcel_Calculation_Functions::flattenSingleValue($chars);
+
+		if (($start < 1) || ($chars < 0)) {
+			return PHPExcel_Calculation_Functions::VALUE();
+		}
+
+		if (is_bool($value)) {
+			$value = ($value) ? PHPExcel_Calculation::getTRUE() : PHPExcel_Calculation::getFALSE();
+		}
+
+		if (function_exists('mb_substr')) {
+			return mb_substr($value, --$start, $chars, 'UTF-8');
+		} else {
+			return substr($value, --$start, $chars);
+		}
+	}	//	function MID()
+
+
+	/**
+	 * RIGHT
+	 *
+	 * @param	string	$value	Value
+	 * @param	int		$chars	Number of characters
+	 * @return	string
+	 */
+	public static function RIGHT($value = '', $chars = 1) {
+		$value		= PHPExcel_Calculation_Functions::flattenSingleValue($value);
+		$chars		= PHPExcel_Calculation_Functions::flattenSingleValue($chars);
+
+		if ($chars < 0) {
+			return PHPExcel_Calculation_Functions::VALUE();
+		}
+
+		if (is_bool($value)) {
+			$value = ($value) ? PHPExcel_Calculation::getTRUE() : PHPExcel_Calculation::getFALSE();
+		}
+
+		if ((function_exists('mb_substr')) && (function_exists('mb_strlen'))) {
+			return mb_substr($value, mb_strlen($value, 'UTF-8') - $chars, $chars, 'UTF-8');
+		} else {
+			return substr($value, strlen($value) - $chars);
+		}
+	}	//	function RIGHT()
+
+
+	/**
+	 * STRINGLENGTH
+	 *
+	 * @param	string	$value	Value
+	 * @return	string
+	 */
+	public static function STRINGLENGTH($value = '') {
+		$value		= PHPExcel_Calculation_Functions::flattenSingleValue($value);
+
+		if (is_bool($value)) {
+			$value = ($value) ? PHPExcel_Calculation::getTRUE() : PHPExcel_Calculation::getFALSE();
+		}
+
+		if (function_exists('mb_strlen')) {
+			return mb_strlen($value, 'UTF-8');
+		} else {
+			return strlen($value);
+		}
+	}	//	function STRINGLENGTH()
+
+
+	/**
+	 * LOWERCASE
+	 *
+	 * Converts a string value to upper case.
+	 *
+	 * @param	string		$mixedCaseString
+	 * @return	string
+	 */
+	public static function LOWERCASE($mixedCaseString) {
+		$mixedCaseString	= PHPExcel_Calculation_Functions::flattenSingleValue($mixedCaseString);
+
+		if (is_bool($mixedCaseString)) {
+			$mixedCaseString = ($mixedCaseString) ? PHPExcel_Calculation::getTRUE() : PHPExcel_Calculation::getFALSE();
+		}
+
+		return PHPExcel_Shared_String::StrToLower($mixedCaseString);
+	}	//	function LOWERCASE()
+
+
+	/**
+	 * UPPERCASE
+	 *
+	 * Converts a string value to upper case.
+	 *
+	 * @param	string		$mixedCaseString
+	 * @return	string
+	 */
+	public static function UPPERCASE($mixedCaseString) {
+		$mixedCaseString	= PHPExcel_Calculation_Functions::flattenSingleValue($mixedCaseString);
+
+		if (is_bool($mixedCaseString)) {
+			$mixedCaseString = ($mixedCaseString) ? PHPExcel_Calculation::getTRUE() : PHPExcel_Calculation::getFALSE();
+		}
+
+		return PHPExcel_Shared_String::StrToUpper($mixedCaseString);
+	}	//	function UPPERCASE()
+
+
+	/**
+	 * PROPERCASE
+	 *
+	 * Converts a string value to upper case.
+	 *
+	 * @param	string		$mixedCaseString
+	 * @return	string
+	 */
+	public static function PROPERCASE($mixedCaseString) {
+		$mixedCaseString	= PHPExcel_Calculation_Functions::flattenSingleValue($mixedCaseString);
+
+		if (is_bool($mixedCaseString)) {
+			$mixedCaseString = ($mixedCaseString) ? PHPExcel_Calculation::getTRUE() : PHPExcel_Calculation::getFALSE();
+		}
+
+		return PHPExcel_Shared_String::StrToTitle($mixedCaseString);
+	}	//	function PROPERCASE()
+
+
+	/**
+	 * REPLACE
+	 *
+	 * @param	string	$oldText	String to modify
+	 * @param	int		$start		Start character
+	 * @param	int		$chars		Number of characters
+	 * @param	string	$newText	String to replace in defined position 
+	 * @return	string
+	 */
+	public static function REPLACE($oldText = '', $start = 1, $chars = null, $newText) {
+		$oldText	= PHPExcel_Calculation_Functions::flattenSingleValue($oldText);
+		$start		= PHPExcel_Calculation_Functions::flattenSingleValue($start);
+		$chars		= PHPExcel_Calculation_Functions::flattenSingleValue($chars);
+		$newText	= PHPExcel_Calculation_Functions::flattenSingleValue($newText);
+
+		$left = self::LEFT($oldText,$start-1);
+		$right = self::RIGHT($oldText,self::STRINGLENGTH($oldText)-($start+$chars)+1);
+
+		return $left.$newText.$right;
+	}	//	function REPLACE()
+
+
+	/**
+	 * SUBSTITUTE
+	 *
+	 * @param	string	$text		Value
+	 * @param	string	$fromText	From Value
+	 * @param	string	$toText		To Value
+	 * @param	integer	$instance	Instance Number
+	 * @return	string
+	 */
+	public static function SUBSTITUTE($text = '', $fromText = '', $toText = '', $instance = 0) {
+		$text		= PHPExcel_Calculation_Functions::flattenSingleValue($text);
+		$fromText	= PHPExcel_Calculation_Functions::flattenSingleValue($fromText);
+		$toText		= PHPExcel_Calculation_Functions::flattenSingleValue($toText);
+		$instance	= floor(PHPExcel_Calculation_Functions::flattenSingleValue($instance));
+
+		if ($instance == 0) {
+			if(function_exists('mb_str_replace')) {
+				return mb_str_replace($fromText,$toText,$text);
+			} else {
+				return str_replace($fromText,$toText,$text);
+			}
+		} else {
+			$pos = -1;
+			while($instance > 0) {
+				if (function_exists('mb_strpos')) {
+					$pos = mb_strpos($text, $fromText, $pos+1, 'UTF-8');
+				} else {
+					$pos = strpos($text, $fromText, $pos+1);
+				}
+				if ($pos === false) {
+					break;
+				}
+				--$instance;
+			}
+			if ($pos !== false) {
+				if (function_exists('mb_strlen')) {
+					return self::REPLACE($text,++$pos,mb_strlen($fromText, 'UTF-8'),$toText);
+				} else {
+					return self::REPLACE($text,++$pos,strlen($fromText),$toText);
+				}
+			}
+		}
+
+		return $text;
+	}	//	function SUBSTITUTE()
+
+
+	/**
+	 * RETURNSTRING
+	 *
+	 * @param	mixed	$testValue	Value to check
+	 * @return	boolean
+	 */
+	public static function RETURNSTRING($testValue = '') {
+		$testValue	= PHPExcel_Calculation_Functions::flattenSingleValue($testValue);
+
+		if (is_string($testValue)) {
+			return $testValue;
+		}
+		return Null;
+	}	//	function RETURNSTRING()
+
+
+	/**
+	 * TEXTFORMAT
+	 *
+	 * @param	mixed	$value	Value to check
+	 * @param	string	$format	Format mask to use
+	 * @return	boolean
+	 */
+	public static function TEXTFORMAT($value,$format) {
+		$value	= PHPExcel_Calculation_Functions::flattenSingleValue($value);
+		$format	= PHPExcel_Calculation_Functions::flattenSingleValue($format);
+
+		if ((is_string($value)) && (!is_numeric($value)) && PHPExcel_Shared_Date::isDateTimeFormatCode($format)) {
+			$value = PHPExcel_Calculation_DateTime::DATEVALUE($value);
+		}
+
+		return (string) PHPExcel_Style_NumberFormat::toFormattedString($value,$format);
+	}	//	function TEXTFORMAT()
+
+	/**
+	 * VALUE
+	 *
+	 * @param	mixed	$value	Value to check
+	 * @return	boolean
+	 */
+	public static function VALUE($value = '') {
+		$value	= PHPExcel_Calculation_Functions::flattenSingleValue($value);
+
+		if (!is_numeric($value)) {
+            $numberValue = str_replace(
+                PHPExcel_Shared_String::getThousandsSeparator(), 
+                '', 
+                trim($value, " \t\n\r\0\x0B" . PHPExcel_Shared_String::getCurrencyCode())
+            );
+            if (is_numeric($numberValue)) {
+                return (float) $numberValue;
+            }
+
+            $dateSetting = PHPExcel_Calculation_Functions::getReturnDateType();
+            PHPExcel_Calculation_Functions::setReturnDateType(PHPExcel_Calculation_Functions::RETURNDATE_EXCEL);
+
+            if (strpos($value, ':') !== false) {
+                $timeValue = PHPExcel_Calculation_DateTime::TIMEVALUE($value);
+                if ($timeValue !== PHPExcel_Calculation_Functions::VALUE()) {
+                    PHPExcel_Calculation_Functions::setReturnDateType($dateSetting);
+                    return $timeValue;
+                }
+            }
+			$dateValue = PHPExcel_Calculation_DateTime::DATEVALUE($value);
+            if ($dateValue !== PHPExcel_Calculation_Functions::VALUE()) {
+                PHPExcel_Calculation_Functions::setReturnDateType($dateSetting);
+                return $dateValue;
+            }
+            PHPExcel_Calculation_Functions::setReturnDateType($dateSetting);
+
+			return PHPExcel_Calculation_Functions::VALUE();
+		}
+		return (float) $value;
+	}
+
+}

includes/PHPExcel/Classes/PHPExcel/Calculation/functionlist.txt

@@ -0,0 +1,351 @@
+ABS
+ACCRINT
+ACCRINTM
+ACOS
+ACOSH
+ADDRESS
+AMORDEGRC
+AMORLINC
+AND
+AREAS
+ASC
+ASIN
+ASINH
+ATAN
+ATAN2
+ATANH
+AVEDEV
+AVERAGE
+AVERAGEA
+AVERAGEIF
+AVERAGEIFS
+BAHTTEXT
+BESSELI
+BESSELJ
+BESSELK
+BESSELY
+BETADIST
+BETAINV
+BIN2DEC
+BIN2HEX
+BIN2OCT
+BINOMDIST
+CEILING
+CELL
+CHAR
+CHIDIST
+CHIINV
+CHITEST
+CHOOSE
+CLEAN
+CODE
+COLUMN
+COLUMNS
+COMBIN
+COMPLEX
+CONCATENATE
+CONFIDENCE
+CONVERT
+CORREL
+COS
+COSH
+COUNT
+COUNTA
+COUNTBLANK
+COUNTIF
+COUNTIFS
+COUPDAYBS
+COUPDAYBS
+COUPDAYSNC
+COUPNCD
+COUPNUM
+COUPPCD
+COVAR
+CRITBINOM
+CUBEKPIMEMBER
+CUBEMEMBER
+CUBEMEMBERPROPERTY
+CUBERANKEDMEMBER
+CUBESET
+CUBESETCOUNT
+CUBEVALUE
+CUMIPMT
+CUMPRINC
+DATE
+DATEDIF
+DATEVALUE
+DAVERAGE
+DAY
+DAYS360
+DB
+DCOUNT
+DCOUNTA
+DDB
+DEC2BIN
+DEC2HEX
+DEC2OCT
+DEGREES
+DELTA
+DEVSQ
+DGET
+DISC
+DMAX
+DMIN
+DOLLAR
+DOLLARDE
+DOLLARFR
+DPRODUCT
+DSTDEV
+DSTDEVP
+DSUM
+DURATION
+DVAR
+DVARP
+EDATE
+EFFECT
+EOMONTH
+ERF
+ERFC
+ERROR.TYPE
+EVEN
+EXACT
+EXP
+EXPONDIST
+FACT
+FACTDOUBLE
+FALSE
+FDIST
+FIND
+FINDB
+FINV
+FISHER
+FISHERINV
+FIXED
+FLOOR
+FORECAST
+FREQUENCY
+FTEST
+FV
+FVSCHEDULE
+GAMAMDIST
+GAMMAINV
+GAMMALN
+GCD
+GEOMEAN
+GESTEP
+GETPIVOTDATA
+GROWTH
+HARMEAN
+HEX2BIN
+HEX2OCT
+HLOOKUP
+HOUR
+HYPERLINK
+HYPGEOMDIST
+IF
+IFERROR
+IMABS
+IMAGINARY
+IMARGUMENT
+IMCONJUGATE
+IMCOS
+IMEXP
+IMLN
+IMLOG10
+IMLOG2
+IMPOWER
+IMPRODUCT
+IMREAL
+IMSIN
+IMSQRT
+IMSUB
+IMSUM
+INDEX
+INDIRECT
+INFO
+INT
+INTERCEPT
+INTRATE
+IPMT
+IRR
+ISBLANK
+ISERR
+ISERROR
+ISEVEN
+ISLOGICAL
+ISNA
+ISNONTEXT
+ISNUMBER
+ISODD
+ISPMT
+ISREF
+ISTEXT
+JIS
+KURT
+LARGE
+LCM
+LEFT
+LEFTB
+LEN
+LENB
+LINEST
+LN
+LOG
+LOG10
+LOGEST
+LOGINV
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