+global\TCPDFBarcode::barcode_eanupc()

Complexity

Conditions	27
Paths	> 20000

Size

Total Lines	183
Code Lines	146

Duplication

Lines	17
Ratio	9.29 %

Importance

Changes

0

<?php if ( !defined( 'ABSPATH' ) ) exit;
	protected function barcode_eanupc($code, $len=13) {
		$upce = false;
		if ($len == 6) {
			$len = 12; // UPC-A
			$upce = true; // UPC-E mode
		}
		$data_len = $len - 1;
		//Padding
		$code = str_pad($code, $data_len, '0', STR_PAD_LEFT);
		$code_len = strlen($code);
		// calculate check digit
		$sum_a = 0;
		for ($i = 1; $i < $data_len; $i+=2) {
			$sum_a += $code{$i};
		}
		if ($len > 12) {
			$sum_a *= 3;
		}
		$sum_b = 0;
		for ($i = 0; $i < $data_len; $i+=2) {
			$sum_b += ($code{$i});
		}
		if ($len < 13) {
			$sum_b *= 3;
		}
		$r = ($sum_a + $sum_b) % 10;
		if($r > 0) {
			$r = (10 - $r);
		}
		if ($code_len == $data_len) {
			// add check digit
			$code .= $r;
		} elseif ($r !== intval($code{$data_len})) {
			// wrong checkdigit
			return false;
		}
		if ($len == 12) {
			// UPC-A
			$code = '0'.$code;
			++$len;
		}
		if ($upce) {
			// convert UPC-A to UPC-E
			$tmp = substr($code, 4, 3);
			if (($tmp == '000') OR ($tmp == '100') OR ($tmp == '200')) {
				// manufacturer code ends in 000, 100, or 200
				$upce_code = substr($code, 2, 2).substr($code, 9, 3).substr($code, 4, 1);
			} else {
				$tmp = substr($code, 5, 2);
				if ($tmp == '00') {
					// manufacturer code ends in 00
					$upce_code = substr($code, 2, 3).substr($code, 10, 2).'3';
				} else {
					$tmp = substr($code, 6, 1);
					if ($tmp == '0') {
						// manufacturer code ends in 0
						$upce_code = substr($code, 2, 4).substr($code, 11, 1).'4';
					} else {
						// manufacturer code does not end in zero
						$upce_code = substr($code, 2, 5).substr($code, 11, 1);
					}
				}
			}
		}
		//Convert digits to bars
		$codes = array(
			'A'=>array( // left odd parity
				'0'=>'0001101',
				'1'=>'0011001',
				'2'=>'0010011',
				'3'=>'0111101',
				'4'=>'0100011',
				'5'=>'0110001',
				'6'=>'0101111',
				'7'=>'0111011',
				'8'=>'0110111',
				'9'=>'0001011'),
			'B'=>array( // left even parity
				'0'=>'0100111',
				'1'=>'0110011',
				'2'=>'0011011',
				'3'=>'0100001',
				'4'=>'0011101',
				'5'=>'0111001',
				'6'=>'0000101',
				'7'=>'0010001',
				'8'=>'0001001',
				'9'=>'0010111'),
			'C'=>array( // right
				'0'=>'1110010',
				'1'=>'1100110',
				'2'=>'1101100',
				'3'=>'1000010',
				'4'=>'1011100',
				'5'=>'1001110',
				'6'=>'1010000',
				'7'=>'1000100',
				'8'=>'1001000',
				'9'=>'1110100')
		);
		$parities = array(
			'0'=>array('A','A','A','A','A','A'),
			'1'=>array('A','A','B','A','B','B'),
			'2'=>array('A','A','B','B','A','B'),
			'3'=>array('A','A','B','B','B','A'),
			'4'=>array('A','B','A','A','B','B'),
			'5'=>array('A','B','B','A','A','B'),
			'6'=>array('A','B','B','B','A','A'),
			'7'=>array('A','B','A','B','A','B'),
			'8'=>array('A','B','A','B','B','A'),
			'9'=>array('A','B','B','A','B','A')
		);
		$upce_parities = array();
		$upce_parities[0] = array(
			'0'=>array('B','B','B','A','A','A'),
			'1'=>array('B','B','A','B','A','A'),
			'2'=>array('B','B','A','A','B','A'),
			'3'=>array('B','B','A','A','A','B'),
			'4'=>array('B','A','B','B','A','A'),
			'5'=>array('B','A','A','B','B','A'),
			'6'=>array('B','A','A','A','B','B'),
			'7'=>array('B','A','B','A','B','A'),
			'8'=>array('B','A','B','A','A','B'),
			'9'=>array('B','A','A','B','A','B')
		);
		$upce_parities[1] = array(
			'0'=>array('A','A','A','B','B','B'),
			'1'=>array('A','A','B','A','B','B'),
			'2'=>array('A','A','B','B','A','B'),
			'3'=>array('A','A','B','B','B','A'),
			'4'=>array('A','B','A','A','B','B'),
			'5'=>array('A','B','B','A','A','B'),
			'6'=>array('A','B','B','B','A','A'),
			'7'=>array('A','B','A','B','A','B'),
			'8'=>array('A','B','A','B','B','A'),
			'9'=>array('A','B','B','A','B','A')
		);
		$k = 0;
		$seq = '101'; // left guard bar
		if ($upce) {
			$bararray = array('code' => $upce_code, 'maxw' => 0, 'maxh' => 1, 'bcode' => array());

The variable $upce_code does not seem to be defined for all execution paths leading up to this point.

			$p = $upce_parities[$code{1}][$r];
			for ($i = 0; $i < 6; ++$i) {
				$seq .= $codes[$p[$i]][$upce_code{$i}];
			}
			$seq .= '010101'; // right guard bar
		} else {
			$bararray = array('code' => $code, 'maxw' => 0, 'maxh' => 1, 'bcode' => array());
			$half_len = ceil($len / 2);
			if ($len == 8) {
				for ($i = 0; $i < $half_len; ++$i) {
					$seq .= $codes['A'][$code{$i}];
				}
			} else {
				$p = $parities[$code{0}];
				for ($i = 1; $i < $half_len; ++$i) {

This code seems to be duplicated across your project.

					$seq .= $codes[$p[$i-1]][$code{$i}];
				}
			}
			$seq .= '01010'; // center guard bar
			for ($i = $half_len; $i < $len; ++$i) {
				$seq .= $codes['C'][$code{$i}];
			}
			$seq .= '101'; // right guard bar
		}
		$clen = strlen($seq);
		$w = 0;
		for ($i = 0; $i < $clen; ++$i) {

This code seems to be duplicated across your project.

			$w += 1;
			if (($i == ($clen - 1)) OR (($i < ($clen - 1)) AND ($seq{$i} != $seq{($i+1)}))) {
				if ($seq{$i} == '1') {
					$t = true; // bar
				} else {
					$t = false; // space
				}
				$bararray['bcode'][$k] = array('t' => $t, 'w' => $w, 'h' => 1, 'p' => 0);
				$bararray['maxw'] += $w;
				++$k;
				$w = 0;
			}
		}
		return $bararray;
	}