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<?php |
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|
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namespace TablePress\PhpOffice\PhpSpreadsheet\Reader\Xls; |
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|
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use TablePress\PhpOffice\PhpSpreadsheet\Cell\Coordinate; |
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use TablePress\PhpOffice\PhpSpreadsheet\Reader\Exception as ReaderException; |
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use TablePress\PhpOffice\PhpSpreadsheet\Reader\Xls; |
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|
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class Biff5 extends Xls |
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{ |
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/** |
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* Reads a cell range address in BIFF5 e.g. 'A2:B6' or 'A1' |
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* always fixed range |
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* section 2.5.14. |
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*/ |
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public static function readBIFF5CellRangeAddressFixed(string $subData): string |
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{ |
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// offset: 0; size: 2; index to first row |
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$fr = self::getUInt2d($subData, 0) + 1; |
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|
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// offset: 2; size: 2; index to last row |
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$lr = self::getUInt2d($subData, 2) + 1; |
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|
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// offset: 4; size: 1; index to first column |
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$fc = ord($subData[4]); |
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|
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// offset: 5; size: 1; index to last column |
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$lc = ord($subData[5]); |
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|
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// check values |
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if ($fr > $lr || $fc > $lc) { |
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throw new ReaderException('Not a cell range address'); |
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} |
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|
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// column index to letter |
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$fc = Coordinate::stringFromColumnIndex($fc + 1); |
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$lc = Coordinate::stringFromColumnIndex($lc + 1); |
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|
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if ($fr == $lr && $fc == $lc) { |
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return "$fc$fr"; |
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} |
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|
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return "$fc$fr:$lc$lr"; |
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} |
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|
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/** |
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* Read BIFF5 cell range address list |
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* section 2.5.15. |
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* |
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* @return array{size: int, cellRangeAddresses: string[]} |
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*/ |
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public static function readBIFF5CellRangeAddressList(string $subData): array |
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{ |
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$cellRangeAddresses = []; |
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|
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// offset: 0; size: 2; number of the following cell range addresses |
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$nm = self::getUInt2d($subData, 0); |
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|
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$offset = 2; |
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// offset: 2; size: 6 * $nm; list of $nm (fixed) cell range addresses |
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for ($i = 0; $i < $nm; ++$i) { |
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$cellRangeAddresses[] = self::readBIFF5CellRangeAddressFixed((string) substr($subData, $offset, 6)); |
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$offset += 6; |
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} |
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|
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return [ |
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'size' => 2 + 6 * $nm, |
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'cellRangeAddresses' => $cellRangeAddresses, |
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]; |
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} |
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} |
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