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ariadna |
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<?php
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namespace PhpOffice\PhpSpreadsheet\Calculation\Engine;
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use PhpOffice\PhpSpreadsheet\Calculation\Exception;
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class ArrayArgumentHelper
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{
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protected int $indexStart = 0;
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protected array $arguments;
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protected int $argumentCount;
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protected array $rows;
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protected array $columns;
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public function initialise(array $arguments): void
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{
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$keys = array_keys($arguments);
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$this->indexStart = (int) array_shift($keys);
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$this->rows = $this->rows($arguments);
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$this->columns = $this->columns($arguments);
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$this->argumentCount = count($arguments);
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$this->arguments = $this->flattenSingleCellArrays($arguments, $this->rows, $this->columns);
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$this->rows = $this->rows($arguments);
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$this->columns = $this->columns($arguments);
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if ($this->arrayArguments() > 2) {
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throw new Exception('Formulae with more than two array arguments are not supported');
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}
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}
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public function arguments(): array
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{
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return $this->arguments;
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}
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public function hasArrayArgument(): bool
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{
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return $this->arrayArguments() > 0;
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}
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public function getFirstArrayArgumentNumber(): int
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{
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$rowArrays = $this->filterArray($this->rows);
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$columnArrays = $this->filterArray($this->columns);
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for ($index = $this->indexStart; $index < $this->argumentCount; ++$index) {
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if (isset($rowArrays[$index]) || isset($columnArrays[$index])) {
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return ++$index;
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}
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}
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return 0;
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}
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public function getSingleRowVector(): ?int
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{
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$rowVectors = $this->getRowVectors();
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return count($rowVectors) === 1 ? array_pop($rowVectors) : null;
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}
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private function getRowVectors(): array
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{
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$rowVectors = [];
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for ($index = $this->indexStart; $index < ($this->indexStart + $this->argumentCount); ++$index) {
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if ($this->rows[$index] === 1 && $this->columns[$index] > 1) {
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$rowVectors[] = $index;
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}
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}
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return $rowVectors;
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}
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public function getSingleColumnVector(): ?int
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{
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$columnVectors = $this->getColumnVectors();
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return count($columnVectors) === 1 ? array_pop($columnVectors) : null;
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}
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private function getColumnVectors(): array
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{
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$columnVectors = [];
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for ($index = $this->indexStart; $index < ($this->indexStart + $this->argumentCount); ++$index) {
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if ($this->rows[$index] > 1 && $this->columns[$index] === 1) {
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$columnVectors[] = $index;
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}
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}
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return $columnVectors;
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}
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public function getMatrixPair(): array
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{
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for ($i = $this->indexStart; $i < ($this->indexStart + $this->argumentCount - 1); ++$i) {
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for ($j = $i + 1; $j < $this->argumentCount; ++$j) {
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if (isset($this->rows[$i], $this->rows[$j])) {
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return [$i, $j];
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}
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}
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}
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return [];
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}
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public function isVector(int $argument): bool
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{
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return $this->rows[$argument] === 1 || $this->columns[$argument] === 1;
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}
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public function isRowVector(int $argument): bool
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{
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return $this->rows[$argument] === 1;
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}
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public function isColumnVector(int $argument): bool
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{
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return $this->columns[$argument] === 1;
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}
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public function rowCount(int $argument): int
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{
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return $this->rows[$argument];
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}
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public function columnCount(int $argument): int
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{
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return $this->columns[$argument];
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}
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private function rows(array $arguments): array
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{
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return array_map(
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fn ($argument): int => is_countable($argument) ? count($argument) : 1,
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$arguments
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);
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}
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private function columns(array $arguments): array
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{
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return array_map(
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fn (mixed $argument): int => is_array($argument) && is_array($argument[array_keys($argument)[0]])
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? count($argument[array_keys($argument)[0]])
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: 1,
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$arguments
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);
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}
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public function arrayArguments(): int
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{
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$count = 0;
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foreach (array_keys($this->arguments) as $argument) {
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if ($this->rows[$argument] > 1 || $this->columns[$argument] > 1) {
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++$count;
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}
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}
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return $count;
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}
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private function flattenSingleCellArrays(array $arguments, array $rows, array $columns): array
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{
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foreach ($arguments as $index => $argument) {
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if ($rows[$index] === 1 && $columns[$index] === 1) {
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while (is_array($argument)) {
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$argument = array_pop($argument);
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}
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$arguments[$index] = $argument;
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}
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}
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return $arguments;
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}
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private function filterArray(array $array): array
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{
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return array_filter(
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$array,
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fn ($value): bool => $value > 1
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);
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}
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}
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