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+<?php

+/**

+ * PHPExcel

+ *

+ * Copyright (c) 2006 - 2012 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 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)

+ * @license		http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL

+ * @version		1.7.8, 2012-10-12

+ */

+

+

+/** 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 - 2012 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