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/*
* Copyright 2016 Huy Cuong Nguyen
* Copyright 2016 ZXing authors
*/
// SPDX-License-Identifier: Apache-2.0
#include "ODUPCEANCommon.h"
namespace ZXing::OneD {
const std::array<int, 3> UPCEANCommon::START_END_PATTERN = { 1, 1, 1 };
const std::array<int, 5> UPCEANCommon::MIDDLE_PATTERN = { 1, 1, 1, 1, 1 };
const std::array<int, 6> UPCEANCommon::UPCE_END_PATTERN = { 1, 1, 1, 1, 1, 1 };
const std::array<std::array<int, 4>, 10> UPCEANCommon::L_PATTERNS = {
3, 2, 1, 1, // 0
2, 2, 2, 1, // 1
2, 1, 2, 2, // 2
1, 4, 1, 1, // 3
1, 1, 3, 2, // 4
1, 2, 3, 1, // 5
1, 1, 1, 4, // 6
1, 3, 1, 2, // 7
1, 2, 1, 3, // 8
3, 1, 1, 2, // 9
};
const std::array<std::array<int, 4>, 20> UPCEANCommon::L_AND_G_PATTERNS = {
3, 2, 1, 1, // 0
2, 2, 2, 1, // 1
2, 1, 2, 2, // 2
1, 4, 1, 1, // 3
1, 1, 3, 2, // 4
1, 2, 3, 1, // 5
1, 1, 1, 4, // 6
1, 3, 1, 2, // 7
1, 2, 1, 3, // 8
3, 1, 1, 2, // 9
// reversed
1, 1, 2, 3, // 10
1, 2, 2, 2, // 11
2, 2, 1, 2, // 12
1, 1, 4, 1, // 13
2, 3, 1, 1, // 14
1, 3, 2, 1, // 15
4, 1, 1, 1, // 16
2, 1, 3, 1, // 17
3, 1, 2, 1, // 18
2, 1, 1, 3, // 19
};
// For an UPC-E barcode, the final digit is represented by the parities used
// to encode the middle six digits, according to the table below.
//
// Parity of next 6 digits
// Digit 0 1 2 3 4 5
// 0 Even Even Even Odd Odd Odd
// 1 Even Even Odd Even Odd Odd
// 2 Even Even Odd Odd Even Odd
// 3 Even Even Odd Odd Odd Even
// 4 Even Odd Even Even Odd Odd
// 5 Even Odd Odd Even Even Odd
// 6 Even Odd Odd Odd Even Even
// 7 Even Odd Even Odd Even Odd
// 8 Even Odd Even Odd Odd Even
// 9 Even Odd Odd Even Odd Even
//
// The encoding is represented by the following array, which is a bit pattern
// using Odd = 0 and Even = 1. For example, 5 is represented by:
//
// Odd Even Even Odd Odd Even
// in binary:
// 0 1 1 0 0 1 == 0x19
//
const std::array<int, 20> UPCEANCommon::NUMSYS_AND_CHECK_DIGIT_PATTERNS = {
0x38, 0x34, 0x32, 0x31, 0x2C, 0x26, 0x23, 0x2A, 0x29, 0x25,
0x07, 0x0B, 0x0D, 0x0E, 0x13, 0x19, 0x1C, 0x15, 0x16, 0x1A,
};
} // namespace ZXing::OneD