AbstractCsv.php
2 weeks ago
ByteSequence.php
2 weeks ago
CannotInsertRecord.php
2 weeks ago
CharsetConverter.php
2 weeks ago
ColumnConsistency.php
2 weeks ago
EncloseField.php
2 weeks ago
EscapeFormula.php
2 weeks ago
Exception.php
9 months ago
HTMLConverter.php
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Info.php
2 weeks ago
InvalidArgument.php
9 months ago
MapIterator.php
2 weeks ago
RFC4180Field.php
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Reader.php
2 weeks ago
ResultSet.php
2 weeks ago
Statement.php
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Stream.php
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SyntaxError.php
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TabularDataReader.php
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UnableToProcessCsv.php
9 months ago
UnavailableFeature.php
9 months ago
UnavailableStream.php
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Writer.php
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XMLConverter.php
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functions.php
9 months ago
functions_include.php
9 months ago
Info.php
72 lines
| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * League.Csv (https://csv.thephpleague.com) |
| 5 | * |
| 6 | * (c) Ignace Nyamagana Butera <nyamsprod@gmail.com> |
| 7 | * |
| 8 | * For the full copyright and license information, please view the LICENSE |
| 9 | * file that was distributed with this source code. |
| 10 | */ |
| 11 | declare (strict_types=1); |
| 12 | namespace IAWPSCOPED\League\Csv; |
| 13 | |
| 14 | use function array_fill_keys; |
| 15 | use function array_filter; |
| 16 | use function array_reduce; |
| 17 | use function array_unique; |
| 18 | use function count; |
| 19 | use function iterator_to_array; |
| 20 | use function strlen; |
| 21 | use function strpos; |
| 22 | use const COUNT_RECURSIVE; |
| 23 | /** @internal */ |
| 24 | final class Info implements ByteSequence |
| 25 | { |
| 26 | private const BOM_SEQUENCE_LIST = [self::BOM_UTF32_BE, self::BOM_UTF32_LE, self::BOM_UTF16_BE, self::BOM_UTF16_LE, self::BOM_UTF8]; |
| 27 | /** |
| 28 | * Returns the BOM sequence found at the start of the string. |
| 29 | * |
| 30 | * If no valid BOM sequence is found an empty string is returned |
| 31 | */ |
| 32 | public static function fetchBOMSequence(string $str) : ?string |
| 33 | { |
| 34 | foreach (self::BOM_SEQUENCE_LIST as $sequence) { |
| 35 | if (0 === strpos($str, $sequence)) { |
| 36 | return $sequence; |
| 37 | } |
| 38 | } |
| 39 | return null; |
| 40 | } |
| 41 | /** |
| 42 | * Detect Delimiters usage in a {@link Reader} object. |
| 43 | * |
| 44 | * Returns a associative array where each key represents |
| 45 | * a submitted delimiter and each value the number CSV fields found |
| 46 | * when processing at most $limit CSV records with the given delimiter |
| 47 | * |
| 48 | * @param string[] $delimiters |
| 49 | * |
| 50 | * @return array<string, int> |
| 51 | */ |
| 52 | public static function getDelimiterStats(Reader $csv, array $delimiters, int $limit = 1) : array |
| 53 | { |
| 54 | $delimiterFilter = static fn(string $value): bool => 1 === strlen($value); |
| 55 | $recordFilter = static fn(array $record): bool => 1 < count($record); |
| 56 | $stmt = Statement::create()->offset(0)->limit($limit); |
| 57 | $delimiterStats = static function (array $stats, string $delimiter) use($csv, $stmt, $recordFilter) : array { |
| 58 | $csv->setDelimiter($delimiter); |
| 59 | $foundRecords = array_filter(iterator_to_array($stmt->process($csv)->getRecords(), \false), $recordFilter); |
| 60 | $stats[$delimiter] = count($foundRecords, COUNT_RECURSIVE); |
| 61 | return $stats; |
| 62 | }; |
| 63 | $currentDelimiter = $csv->getDelimiter(); |
| 64 | $currentHeaderOffset = $csv->getHeaderOffset(); |
| 65 | $csv->setHeaderOffset(null); |
| 66 | $stats = array_reduce(array_unique(array_filter($delimiters, $delimiterFilter)), $delimiterStats, array_fill_keys($delimiters, 0)); |
| 67 | $csv->setHeaderOffset($currentHeaderOffset); |
| 68 | $csv->setDelimiter($currentDelimiter); |
| 69 | return $stats; |
| 70 | } |
| 71 | } |
| 72 |