@zxing/library
Version:
TypeScript port of ZXing multi-format 1D/2D barcode image processing library.
221 lines (220 loc) • 7.31 kB
JavaScript
import NotFoundException from '../../../../NotFoundException';
export default class FieldParser {
constructor() {
}
static parseFieldsInGeneralPurpose(rawInformation) {
if (!rawInformation) {
return null;
}
// Processing 2-digit AIs
if (rawInformation.length < 2) {
throw new NotFoundException();
}
let firstTwoDigits = rawInformation.substring(0, 2);
for (let dataLength of FieldParser.TWO_DIGIT_DATA_LENGTH) {
if (dataLength[0] === firstTwoDigits) {
if (dataLength[1] === FieldParser.VARIABLE_LENGTH) {
return FieldParser.processVariableAI(2, dataLength[2], rawInformation);
}
return FieldParser.processFixedAI(2, dataLength[1], rawInformation);
}
}
if (rawInformation.length < 3) {
throw new NotFoundException();
}
let firstThreeDigits = rawInformation.substring(0, 3);
for (let dataLength of FieldParser.THREE_DIGIT_DATA_LENGTH) {
if (dataLength[0] === firstThreeDigits) {
if (dataLength[1] === FieldParser.VARIABLE_LENGTH) {
return FieldParser.processVariableAI(3, dataLength[2], rawInformation);
}
return FieldParser.processFixedAI(3, dataLength[1], rawInformation);
}
}
for (let dataLength of FieldParser.THREE_DIGIT_PLUS_DIGIT_DATA_LENGTH) {
if (dataLength[0] === firstThreeDigits) {
if (dataLength[1] === FieldParser.VARIABLE_LENGTH) {
return FieldParser.processVariableAI(4, dataLength[2], rawInformation);
}
return FieldParser.processFixedAI(4, dataLength[1], rawInformation);
}
}
if (rawInformation.length < 4) {
throw new NotFoundException();
}
let firstFourDigits = rawInformation.substring(0, 4);
for (let dataLength of FieldParser.FOUR_DIGIT_DATA_LENGTH) {
if (dataLength[0] === firstFourDigits) {
if (dataLength[1] === FieldParser.VARIABLE_LENGTH) {
return FieldParser.processVariableAI(4, dataLength[2], rawInformation);
}
return FieldParser.processFixedAI(4, dataLength[1], rawInformation);
}
}
throw new NotFoundException();
}
static processFixedAI(aiSize, fieldSize, rawInformation) {
if (rawInformation.length < aiSize) {
throw new NotFoundException();
}
let ai = rawInformation.substring(0, aiSize);
if (rawInformation.length < aiSize + fieldSize) {
throw new NotFoundException();
}
let field = rawInformation.substring(aiSize, aiSize + fieldSize);
let remaining = rawInformation.substring(aiSize + fieldSize);
let result = '(' + ai + ')' + field;
let parsedAI = FieldParser.parseFieldsInGeneralPurpose(remaining);
return parsedAI == null ? result : result + parsedAI;
}
static processVariableAI(aiSize, variableFieldSize, rawInformation) {
let ai = rawInformation.substring(0, aiSize);
let maxSize;
if (rawInformation.length < aiSize + variableFieldSize) {
maxSize = rawInformation.length;
}
else {
maxSize = aiSize + variableFieldSize;
}
let field = rawInformation.substring(aiSize, maxSize);
let remaining = rawInformation.substring(maxSize);
let result = '(' + ai + ')' + field;
let parsedAI = FieldParser.parseFieldsInGeneralPurpose(remaining);
return parsedAI == null ? result : result + parsedAI;
}
}
FieldParser.VARIABLE_LENGTH = [];
FieldParser.TWO_DIGIT_DATA_LENGTH = [
['00', 18],
['01', 14],
['02', 14],
['10', FieldParser.VARIABLE_LENGTH, 20],
['11', 6],
['12', 6],
['13', 6],
['15', 6],
['17', 6],
['20', 2],
['21', FieldParser.VARIABLE_LENGTH, 20],
['22', FieldParser.VARIABLE_LENGTH, 29],
['30', FieldParser.VARIABLE_LENGTH, 8],
['37', FieldParser.VARIABLE_LENGTH, 8],
// internal company codes
['90', FieldParser.VARIABLE_LENGTH, 30],
['91', FieldParser.VARIABLE_LENGTH, 30],
['92', FieldParser.VARIABLE_LENGTH, 30],
['93', FieldParser.VARIABLE_LENGTH, 30],
['94', FieldParser.VARIABLE_LENGTH, 30],
['95', FieldParser.VARIABLE_LENGTH, 30],
['96', FieldParser.VARIABLE_LENGTH, 30],
['97', FieldParser.VARIABLE_LENGTH, 3],
['98', FieldParser.VARIABLE_LENGTH, 30],
['99', FieldParser.VARIABLE_LENGTH, 30],
];
FieldParser.THREE_DIGIT_DATA_LENGTH = [
// Same format as above
['240', FieldParser.VARIABLE_LENGTH, 30],
['241', FieldParser.VARIABLE_LENGTH, 30],
['242', FieldParser.VARIABLE_LENGTH, 6],
['250', FieldParser.VARIABLE_LENGTH, 30],
['251', FieldParser.VARIABLE_LENGTH, 30],
['253', FieldParser.VARIABLE_LENGTH, 17],
['254', FieldParser.VARIABLE_LENGTH, 20],
['400', FieldParser.VARIABLE_LENGTH, 30],
['401', FieldParser.VARIABLE_LENGTH, 30],
['402', 17],
['403', FieldParser.VARIABLE_LENGTH, 30],
['410', 13],
['411', 13],
['412', 13],
['413', 13],
['414', 13],
['420', FieldParser.VARIABLE_LENGTH, 20],
['421', FieldParser.VARIABLE_LENGTH, 15],
['422', 3],
['423', FieldParser.VARIABLE_LENGTH, 15],
['424', 3],
['425', 3],
['426', 3],
];
FieldParser.THREE_DIGIT_PLUS_DIGIT_DATA_LENGTH = [
// Same format as above
['310', 6],
['311', 6],
['312', 6],
['313', 6],
['314', 6],
['315', 6],
['316', 6],
['320', 6],
['321', 6],
['322', 6],
['323', 6],
['324', 6],
['325', 6],
['326', 6],
['327', 6],
['328', 6],
['329', 6],
['330', 6],
['331', 6],
['332', 6],
['333', 6],
['334', 6],
['335', 6],
['336', 6],
['340', 6],
['341', 6],
['342', 6],
['343', 6],
['344', 6],
['345', 6],
['346', 6],
['347', 6],
['348', 6],
['349', 6],
['350', 6],
['351', 6],
['352', 6],
['353', 6],
['354', 6],
['355', 6],
['356', 6],
['357', 6],
['360', 6],
['361', 6],
['362', 6],
['363', 6],
['364', 6],
['365', 6],
['366', 6],
['367', 6],
['368', 6],
['369', 6],
['390', FieldParser.VARIABLE_LENGTH, 15],
['391', FieldParser.VARIABLE_LENGTH, 18],
['392', FieldParser.VARIABLE_LENGTH, 15],
['393', FieldParser.VARIABLE_LENGTH, 18],
['703', FieldParser.VARIABLE_LENGTH, 30],
];
FieldParser.FOUR_DIGIT_DATA_LENGTH = [
// Same format as above
['7001', 13],
['7002', FieldParser.VARIABLE_LENGTH, 30],
['7003', 10],
['8001', 14],
['8002', FieldParser.VARIABLE_LENGTH, 20],
['8003', FieldParser.VARIABLE_LENGTH, 30],
['8004', FieldParser.VARIABLE_LENGTH, 30],
['8005', 6],
['8006', 18],
['8007', FieldParser.VARIABLE_LENGTH, 30],
['8008', FieldParser.VARIABLE_LENGTH, 12],
['8018', 18],
['8020', FieldParser.VARIABLE_LENGTH, 25],
['8100', 6],
['8101', 10],
['8102', 2],
['8110', FieldParser.VARIABLE_LENGTH, 70],
['8200', FieldParser.VARIABLE_LENGTH, 70],
];