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TypeCode93.php
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<?php
namespace Picqer\Barcode\Types;
use Picqer\Barcode\Barcode;
use Picqer\Barcode\BarcodeBar;
use Picqer\Barcode\Exceptions\InvalidCharacterException;
/*
* CODE 93 - USS-93
* Compact code similar to Code 39
*
* reference: https://en.wikipedia.org/wiki/Code_93#Full_ASCII_Code_93
*/
class TypeCode93 implements TypeInterface
{
protected array $conversionTable = [
48 => '131112', // 0
49 => '111213', // 1
50 => '111312', // 2
51 => '111411', // 3
52 => '121113', // 4
53 => '121212', // 5
54 => '121311', // 6
55 => '111114', // 7
56 => '131211', // 8
57 => '141111', // 9
65 => '211113', // A
66 => '211212', // B
67 => '211311', // C
68 => '221112', // D
69 => '221211', // E
70 => '231111', // F
71 => '112113', // G
72 => '112212', // H
73 => '112311', // I
74 => '122112', // J
75 => '132111', // K
76 => '111123', // L
77 => '111222', // M
78 => '111321', // N
79 => '121122', // O
80 => '131121', // P
81 => '212112', // Q
82 => '212211', // R
83 => '211122', // S
84 => '211221', // T
85 => '221121', // U
86 => '222111', // V
87 => '112122', // W
88 => '112221', // X
89 => '122121', // Y
90 => '123111', // Z
45 => '121131', // -
46 => '311112', // .
32 => '311211', //
36 => '321111', // $
47 => '112131', // /
43 => '113121', // +
37 => '211131', // %
97 => '121221', // ($)
98 => '312111', // (%)
99 => '311121', // (/)
100 => '122211', // (+)
42 => '111141', // start-stop
];
public function getBarcode(string $code): Barcode
{
$encode = [
chr(0) => 'bU',
chr(1) => 'aA',
chr(2) => 'aB',
chr(3) => 'aC',
chr(4) => 'aD',
chr(5) => 'aE',
chr(6) => 'aF',
chr(7) => 'aG',
chr(8) => 'aH',
chr(9) => 'aI',
chr(10) => 'aJ',
chr(11) => 'aK',
chr(12) => 'aL',
chr(13) => 'aM',
chr(14) => 'aN',
chr(15) => 'aO',
chr(16) => 'aP',
chr(17) => 'aQ',
chr(18) => 'aR',
chr(19) => 'aS',
chr(20) => 'aT',
chr(21) => 'aU',
chr(22) => 'aV',
chr(23) => 'aW',
chr(24) => 'aX',
chr(25) => 'aY',
chr(26) => 'aZ',
chr(27) => 'bA',
chr(28) => 'bB',
chr(29) => 'bC',
chr(30) => 'bD',
chr(31) => 'bE',
chr(32) => ' ',
chr(33) => 'cA',
chr(34) => 'cB',
chr(35) => 'cC',
chr(36) => '$',
chr(37) => '%',
chr(38) => 'cF',
chr(39) => 'cG',
chr(40) => 'cH',
chr(41) => 'cI',
chr(42) => 'cJ',
chr(43) => '+',
chr(44) => 'cL',
chr(45) => '-',
chr(46) => '.',
chr(47) => '/',
chr(48) => '0',
chr(49) => '1',
chr(50) => '2',
chr(51) => '3',
chr(52) => '4',
chr(53) => '5',
chr(54) => '6',
chr(55) => '7',
chr(56) => '8',
chr(57) => '9',
chr(58) => 'cZ',
chr(59) => 'bF',
chr(60) => 'bG',
chr(61) => 'bH',
chr(62) => 'bI',
chr(63) => 'bJ',
chr(64) => 'bV',
chr(65) => 'A',
chr(66) => 'B',
chr(67) => 'C',
chr(68) => 'D',
chr(69) => 'E',
chr(70) => 'F',
chr(71) => 'G',
chr(72) => 'H',
chr(73) => 'I',
chr(74) => 'J',
chr(75) => 'K',
chr(76) => 'L',
chr(77) => 'M',
chr(78) => 'N',
chr(79) => 'O',
chr(80) => 'P',
chr(81) => 'Q',
chr(82) => 'R',
chr(83) => 'S',
chr(84) => 'T',
chr(85) => 'U',
chr(86) => 'V',
chr(87) => 'W',
chr(88) => 'X',
chr(89) => 'Y',
chr(90) => 'Z',
chr(91) => 'bK',
chr(92) => 'bL',
chr(93) => 'bM',
chr(94) => 'bN',
chr(95) => 'bO',
chr(96) => 'bW',
chr(97) => 'dA',
chr(98) => 'dB',
chr(99) => 'dC',
chr(100) => 'dD',
chr(101) => 'dE',
chr(102) => 'dF',
chr(103) => 'dG',
chr(104) => 'dH',
chr(105) => 'dI',
chr(106) => 'dJ',
chr(107) => 'dK',
chr(108) => 'dL',
chr(109) => 'dM',
chr(110) => 'dN',
chr(111) => 'dO',
chr(112) => 'dP',
chr(113) => 'dQ',
chr(114) => 'dR',
chr(115) => 'dS',
chr(116) => 'dT',
chr(117) => 'dU',
chr(118) => 'dV',
chr(119) => 'dW',
chr(120) => 'dX',
chr(121) => 'dY',
chr(122) => 'dZ',
chr(123) => 'bP',
chr(124) => 'bQ',
chr(125) => 'bR',
chr(126) => 'bS',
chr(127) => 'bT',
];
$code_ext = '';
$clen = strlen($code);
for ($i = 0; $i < $clen; ++$i) {
if (ord($code[$i]) > 127) {
throw new InvalidCharacterException('Only supports till char 127');
}
$code_ext .= $encode[$code[$i]];
}
// checksum
$code_ext .= $this->checksum_code93($code_ext);
// add start and stop codes
$code = '*' . $code_ext . '*';
$barcode = new Barcode($code);
for ($i = 0; $i < strlen($code); ++$i) {
$char = ord($code[$i]);
if (! isset($this->conversionTable[$char])) {
throw new InvalidCharacterException('Char ' . $char . ' is unsupported');
}
for ($j = 0; $j < 6; ++$j) {
if (($j % 2) == 0) {
$drawBar = true;
} else {
$drawBar = false;
}
$barWidth = $this->conversionTable[$char][$j];
$barcode->addBar(new BarcodeBar($barWidth, 1, $drawBar));
}
}
$barcode->addBar(new BarcodeBar(1, 1, true));
return $barcode;
}
/**
* Calculate CODE 93 checksum (modulo 47).
*
* @param $code (string) code to represent.
* @return string checksum code.
* @protected
*/
protected function checksum_code93(string $code): string
{
$chars = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '-', '.', ' ', '$', '/', '+', '%', 'a', 'b', 'c', 'd'];
// calculate check digit C
$codeLength = strlen($code);
$weight = 1;
$checksum = 0;
for ($i = ($codeLength - 1); $i >= 0; --$i) {
$charIndex = array_keys($chars, $code[$i]);
$checksum += ($charIndex[0] * $weight);
++$weight;
if ($weight > 20) {
$weight = 1;
}
}
$checksumC = $checksum % 47;
$checkDigitC = $chars[$checksumC];
$codeWithC = $code . $checkDigitC;
// calculate check digit K
$weight = 1;
$checksum = 0;
for ($i = $codeLength; $i >= 0; --$i) {
$charIndex = array_keys($chars, $codeWithC[$i]);
$checksum += ($charIndex[0] * $weight);
++$weight;
if ($weight > 15) {
$weight = 1;
}
}
$checksumK = $checksum % 47;
$checkDigitK = $chars[$checksumK];
return $checkDigitC . $checkDigitK;
}
}