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<?php
/**
* Class ECICharset
*
* @created 21.01.2021
* @author ZXing Authors
* @author smiley <smiley@chillerlan.net>
* @copyright 2021 smiley
* @license Apache-2.0
*/
namespace chillerlan\QRCode\Common;
use chillerlan\QRCode\QRCodeException;
use function sprintf;
/**
* ISO/IEC 18004:2000 - 8.4.1 Extended Channel Interpretation (ECI) Mode
*/
final class ECICharset{
public const CP437 = 0; // Code page 437, DOS Latin US
public const ISO_IEC_8859_1_GLI = 1; // GLI encoding with characters 0 to 127 identical to ISO/IEC 646 and characters 128 to 255 identical to ISO 8859-1
public const CP437_WO_GLI = 2; // An equivalent code table to CP437, without the return-to-GLI 0 logic
public const ISO_IEC_8859_1 = 3; // Latin-1 (Default)
public const ISO_IEC_8859_2 = 4; // Latin-2
public const ISO_IEC_8859_3 = 5; // Latin-3
public const ISO_IEC_8859_4 = 6; // Latin-4
public const ISO_IEC_8859_5 = 7; // Latin/Cyrillic
public const ISO_IEC_8859_6 = 8; // Latin/Arabic
public const ISO_IEC_8859_7 = 9; // Latin/Greek
public const ISO_IEC_8859_8 = 10; // Latin/Hebrew
public const ISO_IEC_8859_9 = 11; // Latin-5
public const ISO_IEC_8859_10 = 12; // Latin-6
public const ISO_IEC_8859_11 = 13; // Latin/Thai
// 14 reserved
public const ISO_IEC_8859_13 = 15; // Latin-7 (Baltic Rim)
public const ISO_IEC_8859_14 = 16; // Latin-8 (Celtic)
public const ISO_IEC_8859_15 = 17; // Latin-9
public const ISO_IEC_8859_16 = 18; // Latin-10
// 19 reserved
public const SHIFT_JIS = 20; // JIS X 0208 Annex 1 + JIS X 0201
public const WINDOWS_1250_LATIN_2 = 21; // Superset of Latin-2, Central Europe
public const WINDOWS_1251_CYRILLIC = 22; // Latin/Cyrillic
public const WINDOWS_1252_LATIN_1 = 23; // Superset of Latin-1
public const WINDOWS_1256_ARABIC = 24;
public const ISO_IEC_10646_UCS_2 = 25; // High order byte first (UTF-16BE)
public const ISO_IEC_10646_UTF_8 = 26; // UTF-8
public const ISO_IEC_646_1991 = 27; // International Reference Version of ISO 7-bit coded character set (US-ASCII)
public const BIG5 = 28; // Big 5 (Taiwan) Chinese Character Set
public const GB18030 = 29; // GB (PRC) Chinese Character Set
public const EUC_KR = 30; // Korean Character Set
/**
* map of charset id -> name
*
* @see \mb_list_encodings()
*/
public const MB_ENCODINGS = [
self::CP437 => null,
self::ISO_IEC_8859_1_GLI => null,
self::CP437_WO_GLI => null,
self::ISO_IEC_8859_1 => 'ISO-8859-1',
self::ISO_IEC_8859_2 => 'ISO-8859-2',
self::ISO_IEC_8859_3 => 'ISO-8859-3',
self::ISO_IEC_8859_4 => 'ISO-8859-4',
self::ISO_IEC_8859_5 => 'ISO-8859-5',
self::ISO_IEC_8859_6 => 'ISO-8859-6',
self::ISO_IEC_8859_7 => 'ISO-8859-7',
self::ISO_IEC_8859_8 => 'ISO-8859-8',
self::ISO_IEC_8859_9 => 'ISO-8859-9',
self::ISO_IEC_8859_10 => 'ISO-8859-10',
self::ISO_IEC_8859_11 => null,
self::ISO_IEC_8859_13 => 'ISO-8859-13',
self::ISO_IEC_8859_14 => 'ISO-8859-14',
self::ISO_IEC_8859_15 => 'ISO-8859-15',
self::ISO_IEC_8859_16 => 'ISO-8859-16',
self::SHIFT_JIS => 'SJIS',
self::WINDOWS_1250_LATIN_2 => null, // @see https://www.php.net/manual/en/function.mb-convert-encoding.php#112547
self::WINDOWS_1251_CYRILLIC => 'Windows-1251',
self::WINDOWS_1252_LATIN_1 => 'Windows-1252',
self::WINDOWS_1256_ARABIC => null, // @see https://stackoverflow.com/a/8592995
self::ISO_IEC_10646_UCS_2 => 'UTF-16BE',
self::ISO_IEC_10646_UTF_8 => 'UTF-8',
self::ISO_IEC_646_1991 => 'ASCII',
self::BIG5 => 'BIG-5',
self::GB18030 => 'GB18030',
self::EUC_KR => 'EUC-KR',
];
/**
* The current ECI character set ID
*/
private int $charsetID;
/**
* @throws \chillerlan\QRCode\QRCodeException
*/
public function __construct(int $charsetID){
if($charsetID < 0 || $charsetID > 999999){
throw new QRCodeException(sprintf('invalid charset id: "%s"', $charsetID));
}
$this->charsetID = $charsetID;
}
/**
* Returns the current character set ID
*/
public function getID():int{
return $this->charsetID;
}
/**
* Returns the name of the current character set or null if no name is available
*
* @see \mb_convert_encoding()
* @see \iconv()
*/
public function getName():?string{
return (self::MB_ENCODINGS[$this->charsetID] ?? null);
}
}
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