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✏️ Editing: ReferenceHelper.php

<?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
 * @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	1.8.0, 2014-03-02
 */

/**
 * PHPExcel_ReferenceHelper (Singleton)
 *
 * @category   PHPExcel
 * @package	PHPExcel
 * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
 */
class PHPExcel_ReferenceHelper
{
	/**	Constants				*/
	/**	Regular Expressions		*/
	const REFHELPER_REGEXP_CELLREF		= '((\w*|\'[^!]*\')!)?(?>![:a-z\$])(\$?[a-z]{1,3}\$?\d+)(?=[^:!\d\'])';
	const REFHELPER_REGEXP_CELLRANGE	= '((\w*|\'[^!]*\')!)?(\$?[a-z]{1,3}\$?\d+):(\$?[a-z]{1,3}\$?\d+)';
	const REFHELPER_REGEXP_ROWRANGE		= '((\w*|\'[^!]*\')!)?(\$?\d+):(\$?\d+)';
	const REFHELPER_REGEXP_COLRANGE		= '((\w*|\'[^!]*\')!)?(\$?[a-z]{1,3}):(\$?[a-z]{1,3})';

/**
	 * Instance of this class
	 *
	 * @var PHPExcel_ReferenceHelper
	 */
	private static $_instance;

/**
	 * Get an instance of this class
	 *
	 * @return PHPExcel_ReferenceHelper
	 */
	public static function getInstance() {
		if (!isset(self::$_instance) || (self::$_instance === NULL)) {
			self::$_instance = new PHPExcel_ReferenceHelper();
		}

return self::$_instance;
	}

/**
	 * Create a new PHPExcel_ReferenceHelper
	 */
	protected function __construct() {
	}

/**
	 * Compare two column addresses
	 * Intended for use as a Callback function for sorting column addresses by column
	 *
	 * @param   string   $a  First column to test (e.g. 'AA')
	 * @param   string   $b  Second column to test (e.g. 'Z')
	 * @return  integer
	 */
	public static function columnSort($a, $b) {
		return strcasecmp(strlen($a) . $a, strlen($b) . $b);
	}

/**
	 * Compare two column addresses
	 * Intended for use as a Callback function for reverse sorting column addresses by column
	 *
	 * @param   string   $a  First column to test (e.g. 'AA')
	 * @param   string   $b  Second column to test (e.g. 'Z')
	 * @return  integer
	 */
	public static function columnReverseSort($a, $b) {
		return 1 - strcasecmp(strlen($a) . $a, strlen($b) . $b);
	}

/**
	 * Compare two cell addresses
	 * Intended for use as a Callback function for sorting cell addresses by column and row
	 *
	 * @param   string   $a  First cell to test (e.g. 'AA1')
	 * @param   string   $b  Second cell to test (e.g. 'Z1')
	 * @return  integer
	 */
	public static function cellSort($a, $b) {
		sscanf($a,'%[A-Z]%d', $ac, $ar);
		sscanf($b,'%[A-Z]%d', $bc, $br);

if ($ar == $br) {
			return strcasecmp(strlen($ac) . $ac, strlen($bc) . $bc);
		}
		return ($ar < $br) ? -1 : 1;
	}

/**
	 * Compare two cell addresses
	 * Intended for use as a Callback function for sorting cell addresses by column and row
	 *
	 * @param   string   $a  First cell to test (e.g. 'AA1')
	 * @param   string   $b  Second cell to test (e.g. 'Z1')
	 * @return  integer
	 */
	public static function cellReverseSort($a, $b) {
		sscanf($a,'%[A-Z]%d', $ac, $ar);
		sscanf($b,'%[A-Z]%d', $bc, $br);

if ($ar == $br) {
			return 1 - strcasecmp(strlen($ac) . $ac, strlen($bc) . $bc);
		}
		return ($ar < $br) ? 1 : -1;
	}

/**
	 * Test whether a cell address falls within a defined range of cells
	 *
	 * @param   string     $cellAddress        Address of the cell we're testing
	 * @param   integer    $beforeRow          Number of the row we're inserting/deleting before
	 * @param   integer    $pNumRows           Number of rows to insert/delete (negative values indicate deletion)
	 * @param   integer    $beforeColumnIndex  Index number of the column we're inserting/deleting before
	 * @param   integer    $pNumCols           Number of columns to insert/delete (negative values indicate deletion)
	 * @return  boolean
	 */
	private static function cellAddressInDeleteRange($cellAddress, $beforeRow, $pNumRows, $beforeColumnIndex, $pNumCols) {
		list($cellColumn, $cellRow) = PHPExcel_Cell::coordinateFromString($cellAddress);
		$cellColumnIndex = PHPExcel_Cell::columnIndexFromString($cellColumn);
		//	Is cell within the range of rows/columns if we're deleting
		if ($pNumRows < 0 &&
			($cellRow >= ($beforeRow + $pNumRows)) &&
			($cellRow < $beforeRow)) {
			return TRUE;
		} elseif ($pNumCols < 0 &&
			($cellColumnIndex >= ($beforeColumnIndex + $pNumCols)) &&
			($cellColumnIndex < $beforeColumnIndex)) {
			return TRUE;
		}
		return FALSE;
	}

/**
	 * Update page breaks when inserting/deleting rows/columns
	 *
	 * @param   PHPExcel_Worksheet  $pSheet             The worksheet that we're editing
	 * @param   string              $pBefore            Insert/Delete before this cell address (e.g. 'A1')
	 * @param   integer             $beforeColumnIndex  Index number of the column we're inserting/deleting before
	 * @param   integer             $pNumCols           Number of columns to insert/delete (negative values indicate deletion)
	 * @param   integer             $beforeRow          Number of the row we're inserting/deleting before
	 * @param   integer             $pNumRows           Number of rows to insert/delete (negative values indicate deletion)
	 */
	protected function _adjustPageBreaks(PHPExcel_Worksheet $pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows)
	{
		$aBreaks = $pSheet->getBreaks();
		($pNumCols > 0 || $pNumRows > 0) ?
			uksort($aBreaks, array('PHPExcel_ReferenceHelper','cellReverseSort')) :
			uksort($aBreaks, array('PHPExcel_ReferenceHelper','cellSort'));

foreach ($aBreaks as $key => $value) {
			if (self::cellAddressInDeleteRange($key, $beforeRow, $pNumRows, $beforeColumnIndex, $pNumCols)) {
				//	If we're deleting, then clear any defined breaks that are within the range
				//		of rows/columns that we're deleting
				$pSheet->setBreak($key, PHPExcel_Worksheet::BREAK_NONE);
			} else {
				//	Otherwise update any affected breaks by inserting a new break at the appropriate point
				//		and removing the old affected break
				$newReference = $this->updateCellReference($key, $pBefore, $pNumCols, $pNumRows);
				if ($key != $newReference) {
					$pSheet->setBreak($newReference, $value)
					    ->setBreak($key, PHPExcel_Worksheet::BREAK_NONE);
				}
			}
		}
	}

/**
	 * Update cell comments when inserting/deleting rows/columns
	 *
	 * @param   PHPExcel_Worksheet  $pSheet             The worksheet that we're editing
	 * @param   string              $pBefore            Insert/Delete before this cell address (e.g. 'A1')
	 * @param   integer             $beforeColumnIndex  Index number of the column we're inserting/deleting before
	 * @param   integer             $pNumCols           Number of columns to insert/delete (negative values indicate deletion)
	 * @param   integer             $beforeRow          Number of the row we're inserting/deleting before
	 * @param   integer             $pNumRows           Number of rows to insert/delete (negative values indicate deletion)
	 */
	protected function _adjustComments($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows)
	{
		$aComments = $pSheet->getComments();
		$aNewComments = array(); // the new array of all comments

foreach ($aComments as $key => &$value) {
			// Any comments inside a deleted range will be ignored
			if (!self::cellAddressInDeleteRange($key, $beforeRow, $pNumRows, $beforeColumnIndex, $pNumCols)) {
				//	Otherwise build a new array of comments indexed by the adjusted cell reference
				$newReference = $this->updateCellReference($key, $pBefore, $pNumCols, $pNumRows);
				$aNewComments[$newReference] = $value;
			}
		}
		//	Replace the comments array with the new set of comments
		$pSheet->setComments($aNewComments);
	}

/**
	 * Update hyperlinks when inserting/deleting rows/columns
	 *
	 * @param   PHPExcel_Worksheet  $pSheet             The worksheet that we're editing
	 * @param   string              $pBefore            Insert/Delete before this cell address (e.g. 'A1')
	 * @param   integer             $beforeColumnIndex  Index number of the column we're inserting/deleting before
	 * @param   integer             $pNumCols           Number of columns to insert/delete (negative values indicate deletion)
	 * @param   integer             $beforeRow          Number of the row we're inserting/deleting before
	 * @param   integer             $pNumRows           Number of rows to insert/delete (negative values indicate deletion)
	 */
	protected function _adjustHyperlinks($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows)
	{
		$aHyperlinkCollection = $pSheet->getHyperlinkCollection();
		($pNumCols > 0 || $pNumRows > 0) ?
			uksort($aHyperlinkCollection, array('PHPExcel_ReferenceHelper','cellReverseSort')) :
			uksort($aHyperlinkCollection, array('PHPExcel_ReferenceHelper','cellSort'));

foreach ($aHyperlinkCollection as $key => $value) {
			$newReference = $this->updateCellReference($key, $pBefore, $pNumCols, $pNumRows);
			if ($key != $newReference) {
				$pSheet->setHyperlink( $newReference, $value );
				$pSheet->setHyperlink( $key, null );
			}
		}
	}

/**
	 * Update data validations when inserting/deleting rows/columns
	 *
	 * @param   PHPExcel_Worksheet  $pSheet             The worksheet that we're editing
	 * @param   string              $pBefore            Insert/Delete before this cell address (e.g. 'A1')
	 * @param   integer             $beforeColumnIndex  Index number of the column we're inserting/deleting before
	 * @param   integer             $pNumCols           Number of columns to insert/delete (negative values indicate deletion)
	 * @param   integer             $beforeRow          Number of the row we're inserting/deleting before
	 * @param   integer             $pNumRows           Number of rows to insert/delete (negative values indicate deletion)
	 */
	protected function _adjustDataValidations($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows)
	{
		$aDataValidationCollection = $pSheet->getDataValidationCollection();
		($pNumCols > 0 || $pNumRows > 0) ?
			uksort($aDataValidationCollection, array('PHPExcel_ReferenceHelper','cellReverseSort')) :
			uksort($aDataValidationCollection, array('PHPExcel_ReferenceHelper','cellSort'));
		foreach ($aDataValidationCollection as $key => $value) {
			$newReference = $this->updateCellReference($key, $pBefore, $pNumCols, $pNumRows);
			if ($key != $newReference) {
				$pSheet->setDataValidation( $newReference, $value );
				$pSheet->setDataValidation( $key, null );
			}
		}
	}

/**
	 * Update merged cells when inserting/deleting rows/columns
	 *
	 * @param   PHPExcel_Worksheet  $pSheet             The worksheet that we're editing
	 * @param   string              $pBefore            Insert/Delete before this cell address (e.g. 'A1')
	 * @param   integer             $beforeColumnIndex  Index number of the column we're inserting/deleting before
	 * @param   integer             $pNumCols           Number of columns to insert/delete (negative values indicate deletion)
	 * @param   integer             $beforeRow          Number of the row we're inserting/deleting before
	 * @param   integer             $pNumRows           Number of rows to insert/delete (negative values indicate deletion)
	 */
	protected function _adjustMergeCells($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows)
	{
		$aMergeCells = $pSheet->getMergeCells();
		$aNewMergeCells = array(); // the new array of all merge cells
		foreach ($aMergeCells as $key => &$value) {
			$newReference = $this->updateCellReference($key, $pBefore, $pNumCols, $pNumRows);
			$aNewMergeCells[$newReference] = $newReference;
		}
		$pSheet->setMergeCells($aNewMergeCells); // replace the merge cells array
	}

/**
	 * Update protected cells when inserting/deleting rows/columns
	 *
	 * @param   PHPExcel_Worksheet  $pSheet             The worksheet that we're editing
	 * @param   string              $pBefore            Insert/Delete before this cell address (e.g. 'A1')
	 * @param   integer             $beforeColumnIndex  Index number of the column we're inserting/deleting before
	 * @param   integer             $pNumCols           Number of columns to insert/delete (negative values indicate deletion)
	 * @param   integer             $beforeRow          Number of the row we're inserting/deleting before
	 * @param   integer             $pNumRows           Number of rows to insert/delete (negative values indicate deletion)
	 */
	protected function _adjustProtectedCells($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows)
	{
		$aProtectedCells = $pSheet->getProtectedCells();
		($pNumCols > 0 || $pNumRows > 0) ?
			uksort($aProtectedCells, array('PHPExcel_ReferenceHelper','cellReverseSort')) :
			uksort($aProtectedCells, array('PHPExcel_ReferenceHelper','cellSort'));
		foreach ($aProtectedCells as $key => $value) {
			$newReference = $this->updateCellReference($key, $pBefore, $pNumCols, $pNumRows);
			if ($key != $newReference) {
				$pSheet->protectCells( $newReference, $value, true );
				$pSheet->unprotectCells( $key );
			}
		}
	}

/**
	 * Update column dimensions when inserting/deleting rows/columns
	 *
	 * @param   PHPExcel_Worksheet  $pSheet             The worksheet that we're editing
	 * @param   string              $pBefore            Insert/Delete before this cell address (e.g. 'A1')
	 * @param   integer             $beforeColumnIndex  Index number of the column we're inserting/deleting before
	 * @param   integer             $pNumCols           Number of columns to insert/delete (negative values indicate deletion)
	 * @param   integer             $beforeRow          Number of the row we're inserting/deleting before
	 * @param   integer             $pNumRows           Number of rows to insert/delete (negative values indicate deletion)
	 */
	protected function _adjustColumnDimensions($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows)
	{
		$aColumnDimensions = array_reverse($pSheet->getColumnDimensions(), true);
		if (!empty($aColumnDimensions)) {
			foreach ($aColumnDimensions as $objColumnDimension) {
				$newReference = $this->updateCellReference($objColumnDimension->getColumnIndex() . '1', $pBefore, $pNumCols, $pNumRows);
				list($newReference) = PHPExcel_Cell::coordinateFromString($newReference);
				if ($objColumnDimension->getColumnIndex() != $newReference) {
					$objColumnDimension->setColumnIndex($newReference);
				}
			}
			$pSheet->refreshColumnDimensions();
		}
	}

/**
	 * Update row dimensions when inserting/deleting rows/columns
	 *
	 * @param   PHPExcel_Worksheet  $pSheet             The worksheet that we're editing
	 * @param   string              $pBefore            Insert/Delete before this cell address (e.g. 'A1')
	 * @param   integer             $beforeColumnIndex  Index number of the column we're inserting/deleting before
	 * @param   integer             $pNumCols           Number of columns to insert/delete (negative values indicate deletion)
	 * @param   integer             $beforeRow          Number of the row we're inserting/deleting before
	 * @param   integer             $pNumRows           Number of rows to insert/delete (negative values indicate deletion)
	 */
	protected function _adjustRowDimensions($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows)
	{
		$aRowDimensions = array_reverse($pSheet->getRowDimensions(), true);
		if (!empty($aRowDimensions)) {
			foreach ($aRowDimensions as $objRowDimension) {
				$newReference = $this->updateCellReference('A' . $objRowDimension->getRowIndex(), $pBefore, $pNumCols, $pNumRows);
				list(, $newReference) = PHPExcel_Cell::coordinateFromString($newReference);
				if ($objRowDimension->getRowIndex() != $newReference) {
					$objRowDimension->setRowIndex($newReference);
				}
			}
			$pSheet->refreshRowDimensions();

$copyDimension = $pSheet->getRowDimension($beforeRow - 1);
			for ($i = $beforeRow; $i <= $beforeRow - 1 + $pNumRows; ++$i) {
				$newDimension = $pSheet->getRowDimension($i);
				$newDimension->setRowHeight($copyDimension->getRowHeight());
				$newDimension->setVisible($copyDimension->getVisible());
				$newDimension->setOutlineLevel($copyDimension->getOutlineLevel());
				$newDimension->setCollapsed($copyDimension->getCollapsed());
			}
		}
	}

/**
	 * Insert a new column or row, updating all possible related data
	 *
	 * @param   string              $pBefore    Insert before this cell address (e.g. 'A1')
	 * @param   integer             $pNumCols   Number of columns to insert/delete (negative values indicate deletion)
	 * @param   integer             $pNumRows   Number of rows to insert/delete (negative values indicate deletion)
	 * @param   PHPExcel_Worksheet  $pSheet     The worksheet that we're editing
	 * @throws  PHPExcel_Exception
	 */
	public function insertNewBefore($pBefore = 'A1', $pNumCols = 0, $pNumRows = 0, PHPExcel_Worksheet $pSheet = NULL)
	{
		$remove = ($pNumCols < 0 || $pNumRows < 0);
		$aCellCollection = $pSheet->getCellCollection();

// Get coordinates of $pBefore
		$beforeColumn	= 'A';
		$beforeRow		= 1;
		list($beforeColumn, $beforeRow) = PHPExcel_Cell::coordinateFromString($pBefore);
		$beforeColumnIndex = PHPExcel_Cell::columnIndexFromString($beforeColumn);

// Clear cells if we are removing columns or rows
		$highestColumn	= $pSheet->getHighestColumn();
		$highestRow	= $pSheet->getHighestRow();

// 1. Clear column strips if we are removing columns
		if ($pNumCols < 0 && $beforeColumnIndex - 2 + $pNumCols > 0) {
			for ($i = 1; $i <= $highestRow - 1; ++$i) {
				for ($j = $beforeColumnIndex - 1 + $pNumCols; $j <= $beforeColumnIndex - 2; ++$j) {
					$coordinate = PHPExcel_Cell::stringFromColumnIndex($j) . $i;
					$pSheet->removeConditionalStyles($coordinate);
					if ($pSheet->cellExists($coordinate)) {
						$pSheet->getCell($coordinate)->setValueExplicit('', PHPExcel_Cell_DataType::TYPE_NULL);
						$pSheet->getCell($coordinate)->setXfIndex(0);
					}
				}
			}
		}

// 2. Clear row strips if we are removing rows
		if ($pNumRows < 0 && $beforeRow - 1 + $pNumRows > 0) {
			for ($i = $beforeColumnIndex - 1; $i <= PHPExcel_Cell::columnIndexFromString($highestColumn) - 1; ++$i) {
				for ($j = $beforeRow + $pNumRows; $j <= $beforeRow - 1; ++$j) {
					$coordinate = PHPExcel_Cell::stringFromColumnIndex($i) . $j;
					$pSheet->removeConditionalStyles($coordinate);
					if ($pSheet->cellExists($coordinate)) {
						$pSheet->getCell($coordinate)->setValueExplicit('', PHPExcel_Cell_DataType::TYPE_NULL);
						$pSheet->getCell($coordinate)->setXfIndex(0);
					}
				}
			}
		}

// Loop through cells, bottom-up, and change cell coordinates
        if($remove) {
            // It's faster to reverse and pop than to use unshift, especially with large cell collections
            $aCellCollection = array_reverse($aCellCollection);
        }
		while ($cellID = array_pop($aCellCollection)) {
			$cell = $pSheet->getCell($cellID);
			$cellIndex = PHPExcel_Cell::columnIndexFromString($cell->getColumn());

if ($cellIndex-1 + $pNumCols < 0) {
				continue;
			}

// New coordinates
			$newCoordinates = PHPExcel_Cell::stringFromColumnIndex($cellIndex-1 + $pNumCols) . ($cell->getRow() + $pNumRows);

// Should the cell be updated? Move value and cellXf index from one cell to another.
			if (($cellIndex >= $beforeColumnIndex) &&
				($cell->getRow() >= $beforeRow)) {

// Update cell styles
				$pSheet->getCell($newCoordinates)->setXfIndex($cell->getXfIndex());

// Insert this cell at its new location
				if ($cell->getDataType() == PHPExcel_Cell_DataType::TYPE_FORMULA) {
					// Formula should be adjusted
					$pSheet->getCell($newCoordinates)
						   ->setValue($this->updateFormulaReferences($cell->getValue(),
						   					$pBefore, $pNumCols, $pNumRows, $pSheet->getTitle()));
				} else {
					// Formula should not be adjusted
					$pSheet->getCell($newCoordinates)->setValue($cell->getValue());
				}

// Clear the original cell
				$pSheet->getCellCacheController()->deleteCacheData($cellID);

} else {
				/*	We don't need to update styles for rows/columns before our insertion position,
						but we do still need to adjust any formulae	in those cells					*/
				if ($cell->getDataType() == PHPExcel_Cell_DataType::TYPE_FORMULA) {
					// Formula should be adjusted
					$cell->setValue($this->updateFormulaReferences($cell->getValue(),
										$pBefore, $pNumCols, $pNumRows, $pSheet->getTitle()));
				}

}
		}

// Duplicate styles for the newly inserted cells
		$highestColumn	= $pSheet->getHighestColumn();
		$highestRow	= $pSheet->getHighestRow();

if ($pNumCols > 0 && $beforeColumnIndex - 2 > 0) {
			for ($i = $beforeRow; $i <= $highestRow - 1; ++$i) {

// Style
				$coordinate = PHPExcel_Cell::stringFromColumnIndex( $beforeColumnIndex - 2 ) . $i;
				if ($pSheet->cellExists($coordinate)) {
					$xfIndex = $pSheet->getCell($coordinate)->getXfIndex();
					$conditionalStyles = $pSheet->conditionalStylesExists($coordinate) ?
						$pSheet->getConditionalStyles($coordinate) : false;
					for ($j = $beforeColumnIndex - 1; $j <= $beforeColumnIndex - 2 + $pNumCols; ++$j) {
						$pSheet->getCellByColumnAndRow($j, $i)->setXfIndex($xfIndex);
						if ($conditionalStyles) {
							$cloned = array();
							foreach ($conditionalStyles as $conditionalStyle) {
								$cloned[] = clone $conditionalStyle;
							}
							$pSheet->setConditionalStyles(PHPExcel_Cell::stringFromColumnIndex($j) . $i, $cloned);
						}
					}
				}

}
		}

if ($pNumRows > 0 && $beforeRow - 1 > 0) {
			for ($i = $beforeColumnIndex - 1; $i <= PHPExcel_Cell::columnIndexFromString($highestColumn) - 1; ++$i) {

// Style
				$coordinate = PHPExcel_Cell::stringFromColumnIndex($i) . ($beforeRow - 1);
				if ($pSheet->cellExists($coordinate)) {
					$xfIndex = $pSheet->getCell($coordinate)->getXfIndex();
					$conditionalStyles = $pSheet->conditionalStylesExists($coordinate) ?
						$pSheet->getConditionalStyles($coordinate) : false;
					for ($j = $beforeRow; $j <= $beforeRow - 1 + $pNumRows; ++$j) {
						$pSheet->getCell(PHPExcel_Cell::stringFromColumnIndex($i) . $j)->setXfIndex($xfIndex);
						if ($conditionalStyles) {
							$cloned = array();
							foreach ($conditionalStyles as $conditionalStyle) {
								$cloned[] = clone $conditionalStyle;
							}
							$pSheet->setConditionalStyles(PHPExcel_Cell::stringFromColumnIndex($i) . $j, $cloned);
						}
					}
				}
			}
		}

// Update worksheet: column dimensions
		$this->_adjustColumnDimensions($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows);

// Update worksheet: row dimensions
		$this->_adjustRowDimensions($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows);

//	Update worksheet: page breaks
		$this->_adjustPageBreaks($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows);

//	Update worksheet: comments
		$this->_adjustComments($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows);

// Update worksheet: hyperlinks
		$this->_adjustHyperlinks($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows);

// Update worksheet: data validations
		$this->_adjustDataValidations($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows);

// Update worksheet: merge cells
		$this->_adjustMergeCells($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows);

// Update worksheet: protected cells
		$this->_adjustProtectedCells($pSheet, $pBefore, $beforeColumnIndex, $pNumCols, $beforeRow, $pNumRows);

// Update worksheet: autofilter
		$autoFilter = $pSheet->getAutoFilter();
		$autoFilterRange = $autoFilter->getRange();
		if (!empty($autoFilterRange)) {
			if ($pNumCols != 0) {
				$autoFilterColumns = array_keys($autoFilter->getColumns());
				if (count($autoFilterColumns) > 0) {
					sscanf($pBefore,'%[A-Z]%d', $column, $row);
					$columnIndex = PHPExcel_Cell::columnIndexFromString($column);
					list($rangeStart,$rangeEnd) = PHPExcel_Cell::rangeBoundaries($autoFilterRange);
					if ($columnIndex <= $rangeEnd[0]) {
						if ($pNumCols < 0) {
							//	If we're actually deleting any columns that fall within the autofilter range,
							//		then we delete any rules for those columns
							$deleteColumn = $columnIndex + $pNumCols - 1;
							$deleteCount = abs($pNumCols);
							for ($i = 1; $i <= $deleteCount; ++$i) {
								if (in_array(PHPExcel_Cell::stringFromColumnIndex($deleteColumn),$autoFilterColumns)) {
									$autoFilter->clearColumn(PHPExcel_Cell::stringFromColumnIndex($deleteColumn));
								}
								++$deleteColumn;
							}
						}
						$startCol = ($columnIndex > $rangeStart[0]) ? $columnIndex : $rangeStart[0];

//	Shuffle columns in autofilter range
						if ($pNumCols > 0) {
							//	For insert, we shuffle from end to beginning to avoid overwriting
							$startColID = PHPExcel_Cell::stringFromColumnIndex($startCol-1);
							$toColID = PHPExcel_Cell::stringFromColumnIndex($startCol+$pNumCols-1);
							$endColID = PHPExcel_Cell::stringFromColumnIndex($rangeEnd[0]);

$startColRef = $startCol;
							$endColRef = $rangeEnd[0];
							$toColRef = $rangeEnd[0]+$pNumCols;

do {
								$autoFilter->shiftColumn(PHPExcel_Cell::stringFromColumnIndex($endColRef-1),PHPExcel_Cell::stringFromColumnIndex($toColRef-1));
								--$endColRef;
								--$toColRef;
							} while ($startColRef <= $endColRef);
						} else {
							//	For delete, we shuffle from beginning to end to avoid overwriting
							$startColID = PHPExcel_Cell::stringFromColumnIndex($startCol-1);
							$toColID = PHPExcel_Cell::stringFromColumnIndex($startCol+$pNumCols-1);
							$endColID = PHPExcel_Cell::stringFromColumnIndex($rangeEnd[0]);
							do {
								$autoFilter->shiftColumn($startColID,$toColID);
								++$startColID;
								++$toColID;
							} while ($startColID != $endColID);
						}
					}
				}
			}
			$pSheet->setAutoFilter( $this->updateCellReference($autoFilterRange, $pBefore, $pNumCols, $pNumRows) );
		}

// Update worksheet: freeze pane
		if ($pSheet->getFreezePane() != '') {
			$pSheet->freezePane( $this->updateCellReference($pSheet->getFreezePane(), $pBefore, $pNumCols, $pNumRows) );
		}

// Page setup
		if ($pSheet->getPageSetup()->isPrintAreaSet()) {
			$pSheet->getPageSetup()->setPrintArea( $this->updateCellReference($pSheet->getPageSetup()->getPrintArea(), $pBefore, $pNumCols, $pNumRows) );
		}

// Update worksheet: drawings
		$aDrawings = $pSheet->getDrawingCollection();
		foreach ($aDrawings as $objDrawing) {
			$newReference = $this->updateCellReference($objDrawing->getCoordinates(), $pBefore, $pNumCols, $pNumRows);
			if ($objDrawing->getCoordinates() != $newReference) {
				$objDrawing->setCoordinates($newReference);
			}
		}

// Update workbook: named ranges
		if (count($pSheet->getParent()->getNamedRanges()) > 0) {
			foreach ($pSheet->getParent()->getNamedRanges() as $namedRange) {
				if ($namedRange->getWorksheet()->getHashCode() == $pSheet->getHashCode()) {
					$namedRange->setRange(
						$this->updateCellReference($namedRange->getRange(), $pBefore, $pNumCols, $pNumRows)
					);
				}
			}
		}

// Garbage collect
		$pSheet->garbageCollect();
	}

/**
	 * Update references within formulas
	 *
	 * @param	string	$pFormula	Formula to update
	 * @param	int		$pBefore	Insert before this one
	 * @param	int		$pNumCols	Number of columns to insert
	 * @param	int		$pNumRows	Number of rows to insert
	 * @param   string  $sheetName  Worksheet name/title
	 * @return	string	Updated formula
	 * @throws	PHPExcel_Exception
	 */
	public function updateFormulaReferences($pFormula = '', $pBefore = 'A1', $pNumCols = 0, $pNumRows = 0, $sheetName = '') {
		//	Update cell references in the formula
		$formulaBlocks = explode('"',$pFormula);
		$i = false;
		foreach($formulaBlocks as &$formulaBlock) {
			//	Ignore blocks that were enclosed in quotes (alternating entries in the $formulaBlocks array after the explode)
			if ($i = !$i) {
				$adjustCount = 0;
				$newCellTokens = $cellTokens = array();
				//	Search for row ranges (e.g. 'Sheet1'!3:5 or 3:5) with or without $ absolutes (e.g. $3:5)
				$matchCount = preg_match_all('/'.self::REFHELPER_REGEXP_ROWRANGE.'/i', ' '.$formulaBlock.' ', $matches, PREG_SET_ORDER);
				if ($matchCount > 0) {
					foreach($matches as $match) {
						$fromString = ($match[2] > '') ? $match[2].'!' : '';
						$fromString .= $match[3].':'.$match[4];
						$modified3 = substr($this->updateCellReference('$A'.$match[3],$pBefore,$pNumCols,$pNumRows),2);
						$modified4 = substr($this->updateCellReference('$A'.$match[4],$pBefore,$pNumCols,$pNumRows),2);

if ($match[3].':'.$match[4] !== $modified3.':'.$modified4) {
							if (($match[2] == '') || (trim($match[2],"'") == $sheetName)) {
								$toString = ($match[2] > '') ? $match[2].'!' : '';
								$toString .= $modified3.':'.$modified4;
								//	Max worksheet size is 1,048,576 rows by 16,384 columns in Excel 2007, so our adjustments need to be at least one digit more
								$column = 100000;
								$row = 10000000+trim($match[3],'$');
								$cellIndex = $column.$row;

$newCellTokens[$cellIndex] = preg_quote($toString);
								$cellTokens[$cellIndex] = '/(?<!\d\$\!)'.preg_quote($fromString).'(?!\d)/i';
								++$adjustCount;
							}
						}
					}
				}
				//	Search for column ranges (e.g. 'Sheet1'!C:E or C:E) with or without $ absolutes (e.g. $C:E)
				$matchCount = preg_match_all('/'.self::REFHELPER_REGEXP_COLRANGE.'/i', ' '.$formulaBlock.' ', $matches, PREG_SET_ORDER);
				if ($matchCount > 0) {
					foreach($matches as $match) {
						$fromString = ($match[2] > '') ? $match[2].'!' : '';
						$fromString .= $match[3].':'.$match[4];
						$modified3 = substr($this->updateCellReference($match[3].'$1',$pBefore,$pNumCols,$pNumRows),0,-2);
						$modified4 = substr($this->updateCellReference($match[4].'$1',$pBefore,$pNumCols,$pNumRows),0,-2);

if ($match[3].':'.$match[4] !== $modified3.':'.$modified4) {
							if (($match[2] == '') || (trim($match[2],"'") == $sheetName)) {
								$toString = ($match[2] > '') ? $match[2].'!' : '';
								$toString .= $modified3.':'.$modified4;
								//	Max worksheet size is 1,048,576 rows by 16,384 columns in Excel 2007, so our adjustments need to be at least one digit more
								$column = PHPExcel_Cell::columnIndexFromString(trim($match[3],'$')) + 100000;
								$row = 10000000;
								$cellIndex = $column.$row;

$newCellTokens[$cellIndex] = preg_quote($toString);
								$cellTokens[$cellIndex] = '/(?<![A-Z\$\!])'.preg_quote($fromString).'(?![A-Z])/i';
								++$adjustCount;
							}
						}
					}
				}
				//	Search for cell ranges (e.g. 'Sheet1'!A3:C5 or A3:C5) with or without $ absolutes (e.g. $A1:C$5)
				$matchCount = preg_match_all('/'.self::REFHELPER_REGEXP_CELLRANGE.'/i', ' '.$formulaBlock.' ', $matches, PREG_SET_ORDER);
				if ($matchCount > 0) {
					foreach($matches as $match) {
						$fromString = ($match[2] > '') ? $match[2].'!' : '';
						$fromString .= $match[3].':'.$match[4];
						$modified3 = $this->updateCellReference($match[3],$pBefore,$pNumCols,$pNumRows);
						$modified4 = $this->updateCellReference($match[4],$pBefore,$pNumCols,$pNumRows);

if ($match[3].$match[4] !== $modified3.$modified4) {
							if (($match[2] == '') || (trim($match[2],"'") == $sheetName)) {
								$toString = ($match[2] > '') ? $match[2].'!' : '';
								$toString .= $modified3.':'.$modified4;
								list($column,$row) = PHPExcel_Cell::coordinateFromString($match[3]);
								//	Max worksheet size is 1,048,576 rows by 16,384 columns in Excel 2007, so our adjustments need to be at least one digit more
								$column = PHPExcel_Cell::columnIndexFromString(trim($column,'$')) + 100000;
								$row = trim($row,'$') + 10000000;
								$cellIndex = $column.$row;

$newCellTokens[$cellIndex] = preg_quote($toString);
								$cellTokens[$cellIndex] = '/(?<![A-Z]\$\!)'.preg_quote($fromString).'(?!\d)/i';
								++$adjustCount;
							}
						}
					}
				}
				//	Search for cell references (e.g. 'Sheet1'!A3 or C5) with or without $ absolutes (e.g. $A1 or C$5)
				$matchCount = preg_match_all('/'.self::REFHELPER_REGEXP_CELLREF.'/i', ' '.$formulaBlock.' ', $matches, PREG_SET_ORDER);

if ($matchCount > 0) {
					foreach($matches as $match) {
						$fromString = ($match[2] > '') ? $match[2].'!' : '';
						$fromString .= $match[3];

$modified3 = $this->updateCellReference($match[3],$pBefore,$pNumCols,$pNumRows);
						if ($match[3] !== $modified3) {
							if (($match[2] == '') || (trim($match[2],"'") == $sheetName)) {
								$toString = ($match[2] > '') ? $match[2].'!' : '';
								$toString .= $modified3;
								list($column,$row) = PHPExcel_Cell::coordinateFromString($match[3]);
								//	Max worksheet size is 1,048,576 rows by 16,384 columns in Excel 2007, so our adjustments need to be at least one digit more
								$column = PHPExcel_Cell::columnIndexFromString(trim($column,'$')) + 100000;
								$row = trim($row,'$') + 10000000;
								$cellIndex = $row . $column;

$newCellTokens[$cellIndex] = preg_quote($toString);
								$cellTokens[$cellIndex] = '/(?<![A-Z\$\!])'.preg_quote($fromString).'(?!\d)/i';
								++$adjustCount;
							}
						}
					}
				}
				if ($adjustCount > 0) {
                    if ($pNumCols > 0 || $pNumRows > 0) {
                        krsort($cellTokens);
                        krsort($newCellTokens);
                      } else {
                        ksort($cellTokens);
                        ksort($newCellTokens);
                    }   //  Update cell references in the formula
					$formulaBlock = str_replace('\\','',preg_replace($cellTokens,$newCellTokens,$formulaBlock));
				}
			}
		}
		unset($formulaBlock);

//	Then rebuild the formula string
		return implode('"',$formulaBlocks);
	}

/**
	 * Update cell reference
	 *
	 * @param	string	$pCellRange			Cell range
	 * @param	int		$pBefore			Insert before this one
	 * @param	int		$pNumCols			Number of columns to increment
	 * @param	int		$pNumRows			Number of rows to increment
	 * @return	string	Updated cell range
	 * @throws	PHPExcel_Exception
	 */
	public function updateCellReference($pCellRange = 'A1', $pBefore = 'A1', $pNumCols = 0, $pNumRows = 0) {
		// Is it in another worksheet? Will not have to update anything.
		if (strpos($pCellRange, "!") !== false) {
			return $pCellRange;
		// Is it a range or a single cell?
		} elseif (strpos($pCellRange, ':') === false && strpos($pCellRange, ',') === false) {
			// Single cell
			return $this->_updateSingleCellReference($pCellRange, $pBefore, $pNumCols, $pNumRows);
		} elseif (strpos($pCellRange, ':') !== false || strpos($pCellRange, ',') !== false) {
			// Range
			return $this->_updateCellRange($pCellRange, $pBefore, $pNumCols, $pNumRows);
		} else {
			// Return original
			return $pCellRange;
		}
	}

/**
	 * Update named formulas (i.e. containing worksheet references / named ranges)
	 *
	 * @param PHPExcel $pPhpExcel	Object to update
	 * @param string $oldName		Old name (name to replace)
	 * @param string $newName		New name
	 */
	public function updateNamedFormulas(PHPExcel $pPhpExcel, $oldName = '', $newName = '') {
		if ($oldName == '') {
			return;
		}

foreach ($pPhpExcel->getWorksheetIterator() as $sheet) {
			foreach ($sheet->getCellCollection(false) as $cellID) {
				$cell = $sheet->getCell($cellID);
				if (($cell !== NULL) && ($cell->getDataType() == PHPExcel_Cell_DataType::TYPE_FORMULA)) {
					$formula = $cell->getValue();
					if (strpos($formula, $oldName) !== false) {
						$formula = str_replace("'" . $oldName . "'!", "'" . $newName . "'!", $formula);
						$formula = str_replace($oldName . "!", $newName . "!", $formula);
						$cell->setValueExplicit($formula, PHPExcel_Cell_DataType::TYPE_FORMULA);
					}
				}
			}
		}
	}

/**
	 * Update cell range
	 *
	 * @param	string	$pCellRange			Cell range	(e.g. 'B2:D4', 'B:C' or '2:3')
	 * @param	int		$pBefore			Insert before this one
	 * @param	int		$pNumCols			Number of columns to increment
	 * @param	int		$pNumRows			Number of rows to increment
	 * @return	string	Updated cell range
	 * @throws	PHPExcel_Exception
	 */
	private function _updateCellRange($pCellRange = 'A1:A1', $pBefore = 'A1', $pNumCols = 0, $pNumRows = 0) {
		if (strpos($pCellRange,':') !== false || strpos($pCellRange, ',') !== false) {
			// Update range
			$range = PHPExcel_Cell::splitRange($pCellRange);
			$ic = count($range);
			for ($i = 0; $i < $ic; ++$i) {
				$jc = count($range[$i]);
				for ($j = 0; $j < $jc; ++$j) {
					if (ctype_alpha($range[$i][$j])) {
						$r = PHPExcel_Cell::coordinateFromString($this->_updateSingleCellReference($range[$i][$j].'1', $pBefore, $pNumCols, $pNumRows));
						$range[$i][$j] = $r[0];
					} elseif(ctype_digit($range[$i][$j])) {
						$r = PHPExcel_Cell::coordinateFromString($this->_updateSingleCellReference('A'.$range[$i][$j], $pBefore, $pNumCols, $pNumRows));
						$range[$i][$j] = $r[1];
					} else {
						$range[$i][$j] = $this->_updateSingleCellReference($range[$i][$j], $pBefore, $pNumCols, $pNumRows);
					}
				}
			}

// Recreate range string
			return PHPExcel_Cell::buildRange($range);
		} else {
			throw new PHPExcel_Exception("Only cell ranges may be passed to this method.");
		}
	}

/**
	 * Update single cell reference
	 *
	 * @param	string	$pCellReference		Single cell reference
	 * @param	int		$pBefore			Insert before this one
	 * @param	int		$pNumCols			Number of columns to increment
	 * @param	int		$pNumRows			Number of rows to increment
	 * @return	string	Updated cell reference
	 * @throws	PHPExcel_Exception
	 */
	private function _updateSingleCellReference($pCellReference = 'A1', $pBefore = 'A1', $pNumCols = 0, $pNumRows = 0) {
		if (strpos($pCellReference, ':') === false && strpos($pCellReference, ',') === false) {
			// Get coordinates of $pBefore
			list($beforeColumn, $beforeRow) = PHPExcel_Cell::coordinateFromString( $pBefore );

// Get coordinates of $pCellReference
			list($newColumn, $newRow) = PHPExcel_Cell::coordinateFromString( $pCellReference );

// Verify which parts should be updated
			$updateColumn = (($newColumn[0] != '$') && ($beforeColumn[0] != '$') &&
							 PHPExcel_Cell::columnIndexFromString($newColumn) >= PHPExcel_Cell::columnIndexFromString($beforeColumn));
			$updateRow = (($newRow[0] != '$') && ($beforeRow[0] != '$') &&
						  $newRow >= $beforeRow);

// Create new column reference
			if ($updateColumn) {
				$newColumn	= PHPExcel_Cell::stringFromColumnIndex( PHPExcel_Cell::columnIndexFromString($newColumn) - 1 + $pNumCols );
			}

// Create new row reference
			if ($updateRow) {
				$newRow	= $newRow + $pNumRows;
			}

// Return new reference
			return $newColumn . $newRow;
		} else {
			throw new PHPExcel_Exception("Only single cell references may be passed to this method.");
		}
	}

/**
	 * __clone implementation. Cloning should not be allowed in a Singleton!
	 *
	 * @throws	PHPExcel_Exception
	 */
	public final function __clone() {
		throw new PHPExcel_Exception("Cloning a Singleton is not allowed!");
	}
}

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