<?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

* @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 ##VERSION##, ##DATE##

*/

/**

* PHPExcel_ReferenceHelper (Singleton)

*

* @category PHPExcel

* @package PHPExcel

* @copyright Copyright (c) 2006 - 2012 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() {

}

/**

* Insert a new column, updating all possible related data

*

* @param int $pBefore Insert before this one

* @param int $pNumCols Number of columns to insert

* @param int $pNumRows Number of rows to insert

* @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

while (($cellID = $remove ? array_shift($aCellCollection) : 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

$aColumnDimensions = array_reverse($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 worksheet: row dimensions

$aRowDimensions = array_reverse($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());

}

}

// Update worksheet: breaks

$aBreaks = array_reverse($pSheet->getBreaks(), true);

foreach ($aBreaks as $key => $value) {

$newReference = $this->updateCellReference($key, $pBefore, $pNumCols, $pNumRows);

if ($key != $newReference) {

$pSheet->setBreak( $newReference, $value );

$pSheet->setBreak( $key, PHPExcel_Worksheet::BREAK_NONE );

}

}

// Update worksheet: comments

$aComments = $pSheet->getComments();

$aNewComments = array(); // the new array of all comments

foreach ($aComments as $key => &$value) {

$newReference = $this->updateCellReference($key, $pBefore, $pNumCols, $pNumRows);

$aNewComments[$newReference] = $value;

}

$pSheet->setComments($aNewComments); // replace the comments array

// Update worksheet: hyperlinks

$aHyperlinkCollection = array_reverse($pSheet->getHyperlinkCollection(), true);

foreach ($aHyperlinkCollection as $key => $value) {

$newReference = $this->updateCellReference($key, $pBefore, $pNumCols, $pNumRows);

if ($key != $newReference) {

$pSheet->setHyperlink( $newReference, $value );

$pSheet->setHyperlink( $key, null );

}

}

// Update worksheet: data validations

$aDataValidationCollection = array_reverse($pSheet->getDataValidationCollection(), true);

foreach ($aDataValidationCollection as $key => $value) {

$newReference = $this->updateCellReference($key, $pBefore, $pNumCols, $pNumRows);

if ($key != $newReference) {

$pSheet->setDataValidation( $newReference, $value );

$pSheet->setDataValidation( $key, null );

}

}

// Update worksheet: merge cells

$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 worksheet: protected cells

$aProtectedCells = array_reverse($pSheet->getProtectedCells(), true);

foreach ($aProtectedCells as $key => $value) {

$newReference = $this->updateCellReference($key, $pBefore, $pNumCols, $pNumRows);

if ($key != $newReference) {

$pSheet->protectCells( $newReference, $value, true );

$pSheet->unprotectCells( $key );

}

}

// Update worksheet: autofilter

$autoFilter = $pSheet->getAutoFilter();

$autoFilterRange = $autoFilter->getRange();

if (!empty($autoFilterRange)) {

if ($pNumCols != 0) {

$autoFilterColumns = array_keys($autoFilter->getColumns());

if (count($autoFilterColumns) > 0) {

list($column,$row) = sscanf($pBefore,'%[A-Z]%d');

$columnIndex = PHPExcel_Cell::columnIndexFromString($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

* @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 = $column.$row;

$newCellTokens[$cellIndex] = preg_quote($toString);

$cellTokens[$cellIndex] = '/(?<![A-Z])'.preg_quote($fromString).'(?!\d)/i';

++$adjustCount;

}

}

}

}

if ($adjustCount > 0) {

if ($pNumCols > 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!");

}

}