[增添]添加了datasource的setting数据库以及默认值
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makotocc0107
395
vendor/league/csv/src/FragmentFinder.php
vendored
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395
vendor/league/csv/src/FragmentFinder.php
vendored
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<?php
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/**
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* League.Csv (https://csv.thephpleague.com)
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*
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* (c) Ignace Nyamagana Butera <nyamsprod@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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declare(strict_types=1);
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namespace League\Csv;
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use function array_filter;
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use function array_map;
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use function array_reduce;
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use function count;
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use function explode;
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use function filter_var;
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use function preg_match;
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use function range;
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use const FILTER_VALIDATE_INT;
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/**
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* @phpstan-type selection array{selection:string, start:int<-1, max>, end:?int, length:int, columns:array<int>}
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*/
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class FragmentFinder
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{
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private const REGEXP_URI_FRAGMENT = ',^(?<type>row|cell|col)=(?<selections>.*)$,i';
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private const REGEXP_ROWS_COLUMNS_SELECTION = '/^(?<start>\d+)(-(?<end>\d+|\*))?$/';
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private const REGEXP_CELLS_SELECTION = '/^(?<csr>\d+),(?<csc>\d+)(-(?<end>((?<cer>\d+),(?<cec>\d+))|\*))?$/';
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private const TYPE_ROW = 'row';
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private const TYPE_COLUMN = 'col';
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private const TYPE_UNKNOWN = 'unknown';
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public static function create(): self
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{
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return new self();
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}
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/**
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* @throws SyntaxError
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*
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* @return iterable<int, TabularDataReader>
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*/
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public function findAll(string $expression, TabularDataReader $tabularDataReader): iterable
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{
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return $this->find($this->parseExpression($expression, $tabularDataReader), $tabularDataReader);
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}
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/**
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* @throws SyntaxError
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*/
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public function findFirst(string $expression, TabularDataReader $tabularDataReader): ?TabularDataReader
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{
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$fragment = $this->find($this->parseExpression($expression, $tabularDataReader), $tabularDataReader)[0];
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return match ([]) {
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$fragment->first() => null,
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default => $fragment,
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};
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}
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/**
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* @throws SyntaxError
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* @throws FragmentNotFound if the expression can not be parsed
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*/
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public function findFirstOrFail(string $expression, TabularDataReader $tabularDataReader): TabularDataReader
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{
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$parsedExpression = $this->parseExpression($expression, $tabularDataReader);
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if ([] !== array_filter($parsedExpression['selections'], fn (array $selection) => -1 === $selection['start'])) {
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throw new FragmentNotFound('The expression `'.$expression.'` contains an invalid or an unsupported selection for the tabular data.');
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}
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$fragment = $this->find($parsedExpression, $tabularDataReader)[0];
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return match ([]) {
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$fragment->first() => throw new FragmentNotFound('No fragment found in the tabular data with the expression `'.$expression.'`.'),
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default => $fragment,
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};
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}
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/**
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* @param array{type:string, selections:non-empty-array<selection>} $parsedExpression
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*
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* @throws SyntaxError
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*
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* @return array<int, TabularDataReader>
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*/
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private function find(array $parsedExpression, TabularDataReader $tabularDataReader): array
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{
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['type' => $type, 'selections' => $selections] = $parsedExpression;
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$selections = array_filter($selections, fn (array $selection) => -1 !== $selection['start']);
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if ([] === $selections) {
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return [ResultSet::createFromRecords()];
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}
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if (self::TYPE_ROW === $type) {
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$rowFilter = fn (array $record, int $offset): bool => [] !== array_filter(
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$selections,
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fn (array $selection) =>
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$offset >= $selection['start'] &&
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(null === $selection['end'] || $offset <= $selection['end'])
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);
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return [
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Statement::create()
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->where($rowFilter)
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->process($tabularDataReader),
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];
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}
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if (self::TYPE_COLUMN === $type) {
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$columns = array_reduce(
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$selections,
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fn (array $columns, array $selection) => [...$columns, ...$selection['columns']],
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[]
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);
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return [match ([]) {
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$columns => ResultSet::createFromRecords(),
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default => Statement::create()->select(...$columns)->process($tabularDataReader),
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}];
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}
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return array_map(
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fn (array $selection) => Statement::create()
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->offset($selection['start'])
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->limit($selection['length'])
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->select(...$selection['columns'])
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->process($tabularDataReader),
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$selections
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);
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}
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/**
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* @return array{type:string, selections:non-empty-array<selection>}
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*/
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private function parseExpression(string $expression, TabularDataReader $tabularDataReader): array
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{
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if (1 !== preg_match(self::REGEXP_URI_FRAGMENT, $expression, $matches)) {
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return [
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'type' => self::TYPE_UNKNOWN,
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'selections' => [
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[
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'selection' => $expression,
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'start' => -1,
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'end' => null,
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'length' => -1,
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'columns' => [],
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],
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],
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];
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}
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$type = strtolower($matches['type']);
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/** @var non-empty-array<selection> $res */
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$res = array_reduce(
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explode(';', $matches['selections']),
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fn (array $selections, string $selection): array => [...$selections, match ($type) {
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self::TYPE_ROW => $this->parseRowSelection($selection),
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self::TYPE_COLUMN => $this->parseColumnSelection($selection, $tabularDataReader),
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default => $this->parseCellSelection($selection, $tabularDataReader),
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}],
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[]
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);
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return [
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'type' => $type,
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'selections' => $res,
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];
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}
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/**
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* @return selection
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*/
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private function parseRowSelection(string $selection): array
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{
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[$start, $end] = $this->parseRowColumnSelection($selection);
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return match (true) {
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-1 === $start,
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null === $end => [
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'selection' => $selection,
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'start' => $start,
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'end' => $start,
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'length' => 1,
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'columns' => [],
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],
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'*' === $end => [
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'selection' => $selection,
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'start' => $start,
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'end' => null,
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'length' => -1,
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'columns' => [],
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],
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default => [
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'selection' => $selection,
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'start' => $start,
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'end' => $end,
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'length' => $end - $start + 1,
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'columns' => [],
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],
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};
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}
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/**
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* @return selection
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*/
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private function parseColumnSelection(string $selection, TabularDataReader $tabularDataReader): array
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{
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[$start, $end] = $this->parseRowColumnSelection($selection);
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$header = $tabularDataReader->getHeader();
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if ([] === $header) {
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$header = $tabularDataReader->first();
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}
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$nbColumns = count($header);
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return match (true) {
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-1 === $start,
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$start >= $nbColumns => [
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'selection' => $selection,
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'start' => -1,
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'end' => null,
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'length' => -1,
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'columns' => [],
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],
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null === $end => [
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'selection' => $selection,
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'start' => 0,
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'end' => null,
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'length' => -1,
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'columns' => [$start],
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],
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'*' === $end,
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$end > ($nbColumns - 1) => [
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'selection' => $selection,
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'start' => 0,
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'end' => null,
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'length' => -1,
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'columns' => range($start, $nbColumns - 1),
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],
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default => [
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'selection' => $selection,
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'start' => 0,
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'end' => $end,
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'length' => -1,
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'columns' => range($start, $end),
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],
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};
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}
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/**
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* @return array{int<-1, max>, int|null|'*'}
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*/
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private function parseRowColumnSelection(string $selection): array
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{
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if (1 !== preg_match(self::REGEXP_ROWS_COLUMNS_SELECTION, $selection, $found)) {
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return [-1, 0];
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}
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$start = $found['start'];
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$end = $found['end'] ?? null;
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$start = filter_var($start, FILTER_VALIDATE_INT, ['options' => ['min_range' => 1]]);
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if (false === $start) {
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return [-1, 0];
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}
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--$start;
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if (null === $end || '*' === $end) {
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return [$start, $end];
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}
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$end = filter_var($end, FILTER_VALIDATE_INT, ['options' => ['min_range' => 1]]);
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if (false === $end) {
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return [-1, 0];
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}
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--$end;
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if ($end <= $start) {
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return [-1, 0];
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}
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return [$start, $end];
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}
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/**
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* @return selection
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*/
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private function parseCellSelection(string $selection, TabularDataReader $tabularDataReader): array
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{
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if (1 !== preg_match(self::REGEXP_CELLS_SELECTION, $selection, $found)) {
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return [
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'selection' => $selection,
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'start' => -1,
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'end' => null,
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'length' => 1,
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'columns' => [],
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];
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}
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$cellStartRow = filter_var($found['csr'], FILTER_VALIDATE_INT, ['options' => ['min_range' => 1]]);
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$cellStartCol = filter_var($found['csc'], FILTER_VALIDATE_INT, ['options' => ['min_range' => 1]]);
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if (false === $cellStartRow || false === $cellStartCol) {
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return [
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'selection' => $selection,
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'start' => -1,
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'end' => null,
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'length' => 1,
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'columns' => [],
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];
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}
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--$cellStartRow;
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--$cellStartCol;
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$header = $tabularDataReader->getHeader();
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if ([] === $header) {
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$header = $tabularDataReader->first();
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}
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$nbColumns = count($header);
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if ($cellStartCol > $nbColumns - 1) {
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return [
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'selection' => $selection,
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'start' => -1,
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'end' => null,
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'length' => 1,
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'columns' => [],
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];
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}
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$cellEnd = $found['end'] ?? null;
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if (null === $cellEnd) {
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return [
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'selection' => $selection,
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'start' => $cellStartRow,
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'end' => null,
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'length' => 1,
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'columns' => [$cellStartCol],
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];
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}
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if ('*' === $cellEnd) {
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return [
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'selection' => $selection,
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'start' => $cellStartRow,
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'end' => null,
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'length' => -1,
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'columns' => range($cellStartCol, $nbColumns - 1),
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];
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}
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$cellEndRow = filter_var($found['cer'], FILTER_VALIDATE_INT, ['options' => ['min_range' => 1]]);
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$cellEndCol = filter_var($found['cec'], FILTER_VALIDATE_INT, ['options' => ['min_range' => 1]]);
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if (false === $cellEndRow || false === $cellEndCol) {
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return [
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'selection' => $selection,
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'start' => -1,
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'end' => null,
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'length' => 1,
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'columns' => [],
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];
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}
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--$cellEndRow;
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--$cellEndCol;
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if ($cellEndRow < $cellStartRow || $cellEndCol < $cellStartCol) {
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return [
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'selection' => $selection,
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'start' => -1,
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'end' => null,
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'length' => 1,
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'columns' => [],
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];
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}
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return [
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'selection' => $selection,
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'start' => $cellStartRow,
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'end' => $cellEndRow,
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'length' => $cellEndRow - $cellStartRow + 1,
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'columns' => range($cellStartCol, ($cellEndCol > $nbColumns - 1) ? $nbColumns - 1 : $cellEndCol),
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];
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}
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}
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