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Name	Size	Permission	Date
Query	[ DIR ]	drwxrwxrwx	2025-03-23 13:35
Serializer	[ DIR ]	drwxrwxrwx	2025-03-23 13:35
AbstractCsv.php	18.2 KB	-rw-rw-rw-	2025-02-27 23:00
Bom.php	3.63 KB	-rw-rw-rw-	2025-02-27 23:00
Buffer.php	14.58 KB	-rw-rw-rw-	2025-02-27 23:00
ByteSequence.php	1.09 KB	-rw-rw-rw-	2025-02-27 23:00
CallbackStreamFilter.php	4.57 KB	-rw-rw-rw-	2025-02-27 23:00
CannotInsertRecord.php	1.44 KB	-rw-rw-rw-	2025-02-27 23:00
CharsetConverter.php	13.16 KB	-rw-rw-rw-	2025-02-27 23:00
ColumnConsistency.php	1.17 KB	-rw-rw-rw-	2025-02-27 23:00
EncloseField.php	4.25 KB	-rw-rw-rw-	2025-02-27 23:00
EscapeFormula.php	4.21 KB	-rw-rw-rw-	2025-02-27 23:00
Exception.php	437 B	-rw-rw-rw-	2025-02-27 23:00
FragmentFinder.php	13.07 KB	-rw-rw-rw-	2025-02-27 23:00
FragmentNotFound.php	407 B	-rw-rw-rw-	2025-02-27 23:00
HTMLConverter.php	7.3 KB	-rw-rw-rw-	2025-02-27 23:00
HttpHeaders.php	1.88 KB	-rw-rw-rw-	2025-02-27 23:00
Info.php	2.38 KB	-rw-rw-rw-	2025-02-27 23:00
InvalidArgument.php	3.96 KB	-rw-rw-rw-	2025-02-27 23:00
JsonConverter.php	18.97 KB	-rw-rw-rw-	2025-02-27 23:00
MapIterator.php	1.75 KB	-rw-rw-rw-	2025-02-27 23:00
RFC4180Field.php	6.8 KB	-rw-rw-rw-	2025-02-27 23:00
RdbmsResult.php	2.28 KB	-rw-rw-rw-	2025-02-27 23:00
Reader.php	17.39 KB	-rw-rw-rw-	2025-02-27 23:00
ResultSet.php	20.3 KB	-rw-rw-rw-	2025-02-27 23:00
Statement.php	16.9 KB	-rw-rw-rw-	2025-02-27 23:00
Stream.php	15.21 KB	-rw-rw-rw-	2025-02-27 23:00
StreamFilter.php	5.59 KB	-rw-rw-rw-	2025-02-27 23:00
SwapDelimiter.php	5.37 KB	-rw-rw-rw-	2025-02-27 23:00
SyntaxError.php	1.64 KB	-rw-rw-rw-	2025-02-27 23:00
TabularData.php	2.24 KB	-rw-rw-rw-	2025-02-27 23:00
TabularDataReader.php	5.13 KB	-rw-rw-rw-	2025-02-27 23:00
TabularDataWriter.php	1.21 KB	-rw-rw-rw-	2025-02-27 23:00
UnableToProcessCsv.php	363 B	-rw-rw-rw-	2025-02-27 23:00
UnavailableFeature.php	1.05 KB	-rw-rw-rw-	2025-02-27 23:00
UnavailableStream.php	787 B	-rw-rw-rw-	2025-02-27 23:00
Writer.php	9.92 KB	-rw-rw-rw-	2025-02-27 23:00
XMLConverter.php	8.89 KB	-rw-rw-rw-	2025-02-27 23:00
functions.php	1.6 KB	-rw-rw-rw-	2025-02-27 23:00
functions_include.php	342 B	-rw-rw-rw-	2025-02-27 23:00

Rename

<?php

/**
 * League.Csv (https://csv.thephpleague.com)
 *
 * (c) Ignace Nyamagana Butera <nyamsprod@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

declare(strict_types=1);

namespace League\Csv;

use SplFileObject;
use Stringable;
use Throwable;
use ValueError;

enum Bom: string
{
    case Utf32Le = "\xFF\xFE\x00\x00";
    case Utf32Be = "\x00\x00\xFE\xFF";
    case Utf16Be = "\xFE\xFF";
    case Utf16Le = "\xFF\xFE";
    case Utf8 = "\xEF\xBB\xBF";

public static function fromSequence(mixed $sequence): self
    {
        return self::tryFromSequence($sequence)
            ?? throw new ValueError('No BOM sequence could be found on the given sequence.');
    }

public static function tryFromSequence(mixed $sequence): ?self
    {
        $str = match (true) {
            $sequence instanceof SplFileObject,
            $sequence instanceof Stream => self::getContents($sequence, 4, 0),
            is_resource($sequence) => stream_get_contents($sequence, 4, 0),
            $sequence instanceof AbstractCsv => $sequence->getInputBOM(),
            $sequence instanceof Stringable,
            is_string($sequence) => substr((string) $sequence, 0, 4),
            default => $sequence,
        };

if (!is_string($str) || '' === rtrim($str)) {
            return null;
        }

foreach (self::cases() as $bom) {
            if (str_starts_with($str, $bom->value)) {
                return $bom;
            }
        }

return null;
    }

private static function getContents(Stream|SplFileObject $sequence, int $length, int $offset): ?string
    {
        $position = $sequence->ftell();
        if (false === $position) {
            return null;
        }

try {
            $sequence->fseek($offset);
            $str = $sequence->fread($length);
            $sequence->fseek($position);
            if (false === $str) {
                return null;
            }

return $str;
        } catch (Throwable) {
            return null;
        }
    }

public static function fromEncoding(string $name): self
    {
        return self::tryFromEncoding($name)
            ?? throw new ValueError('Unknown or unsupported BOM name `'.$name.'`.');
    }

/**
     * @see https://unicode.org/faq/utf_bom.html#gen7
     */
    public static function tryFromEncoding(string $name): ?self
    {
        return match (strtoupper(str_replace(['_', '-'], '', $name))) {
            'UTF8' => self::Utf8,
            'UTF16',
            'UTF16BE' => self::Utf16Be,
            'UTF16LE' => self::Utf16Le,
            'UTF32',
            'UTF32BE' => self::Utf32Be,
            'UTF32LE' => self::Utf32Le,
            default => null,
        };
    }

public function length(): int
    {
        return strlen($this->value);
    }

public function encoding(): string
    {
        return match ($this) {
            self::Utf16Le => 'UTF-16LE',
            self::Utf16Be => 'UTF-16BE',
            self::Utf32Le => 'UTF-32LE',
            self::Utf32Be => 'UTF-32BE',
            self::Utf8 => 'UTF-8',
        };
    }

public function isUtf8(): bool
    {
        return match ($this) {
            self::Utf8 => true,
            default => false,
        };
    }

public function isUtf16(): bool
    {
        return match ($this) {
            self::Utf16Le,
            self::Utf16Be => true,
            default => false,
        };
    }

public function isUtf32(): bool
    {
        return match ($this) {
            self::Utf32Le,
            self::Utf32Be => true,
            default => false,
        };
    }
}