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<?php declare(strict_types = 1); |
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namespace Spaghetti\XLSXParser; |
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use Iterator; |
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use XMLReader; |
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use function count; |
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/** |
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* @internal |
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*/ |
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final class RowIterator implements Iterator |
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{ |
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private XMLReader $xml; |
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private array $currentValue; |
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private bool $valid; |
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private ?int $currentKey; |
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private readonly Transformer\Column $columnTransformer; |
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public function __construct( |
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private readonly Transformer\Value $valueTransformer, |
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private readonly string $path, |
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?Transformer\Column $columnTransformer = null, |
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) { |
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$this->columnTransformer = $columnTransformer ?? new Transformer\Column(); |
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} |
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public function current(): array |
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{ |
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return $this->currentValue; |
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} |
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public function key(): int |
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{ |
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return $this->currentKey; |
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} |
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public function next(): void |
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{ |
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$this->valid = false; |
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$style = $type = $columnIndex = $row = $currentKey = null; |
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while ($this->xml->read()) { |
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if (XMLReader::ELEMENT === $this->xml->nodeType) { |
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$this->process(columnIndex: $columnIndex, currentKey: $currentKey, row: $row, type: $type, style: $style); |
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continue; |
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} |
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if (XMLReader::END_ELEMENT === $this->xml->nodeType) { |
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switch ($this->xml->name) { |
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case 'row': |
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if ($this->processEnd(row: $row, currentKey: $currentKey)) { |
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return; |
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} |
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break; |
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case 'sheetData': |
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break 2; |
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} |
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} |
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} |
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} |
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public function rewind(): void |
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{ |
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$xml = new XMLReader(); |
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$this->xml = false === $xml->open(uri: $this->path) ? null : $xml; |
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$this->next(); |
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} |
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public function valid(): bool |
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{ |
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return $this->valid; |
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} |
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private function processEnd(?Row &$row, ?int &$currentKey): bool |
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{ |
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$currentValue = $row->getData(); |
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if (count(value: $currentValue)) { |
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$this->currentKey = $currentKey; |
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$this->currentValue = $currentValue; |
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$this->valid = true; |
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return true; |
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} |
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return false; |
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} |
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private function process(?int &$columnIndex, ?int &$currentKey, ?Row &$row, ?string &$type, ?string &$style): void |
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{ |
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switch ($this->xml->name) { |
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case 'row': |
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$currentKey = (int) $this->xml->getAttribute(name: 'r'); |
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$row = new Row(); |
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break; |
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case 'c': |
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$columnIndex = $this->columnTransformer->transform(name: $this->xml->getAttribute(name: 'r')); |
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$style = $this->xml->getAttribute(name: 's') ?? ''; |
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$type = $this->xml->getAttribute(name: 't') ?? ''; |
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break; |
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case 'v': |
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$row->addValue( |
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columnIndex: $columnIndex, |
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value: $this->valueTransformer->transform(value: $this->xml->readString(), type: $type, style: $style), |
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); |
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break; |
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default: |
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$row?->addValue(columnIndex: $columnIndex, value: $this->xml->readString()); |
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break; |
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} |
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} |
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} |
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spaghettisolutions /
xlsx-parser
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