import { MACRO_05_HEADER, MACRO_06_HEADER, MACRO_TRAILER, } from './constants';
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import HighLevelEncoder from './HighLevelEncoder';
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import { MinimalECIInput } from '../../common/MinimalECIInput';
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import Integer from '../../util/Integer';
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var Mode;
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(function (Mode) {
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Mode[Mode["ASCII"] = 0] = "ASCII";
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Mode[Mode["C40"] = 1] = "C40";
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Mode[Mode["TEXT"] = 2] = "TEXT";
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Mode[Mode["X12"] = 3] = "X12";
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Mode[Mode["EDF"] = 4] = "EDF";
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Mode[Mode["B256"] = 5] = "B256";
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})(Mode || (Mode = {}));
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const C40_SHIFT2_CHARS = [
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'!',
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'"',
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'#',
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'$',
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'%',
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'&',
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"'",
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'(',
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')',
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'*',
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'+',
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',',
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'-',
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'.',
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'/',
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':',
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';',
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'<',
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'=',
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'>',
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'?',
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'@',
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'[',
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'\\',
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']',
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'^',
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'_',
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];
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export class MinimalEncoder {
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static isExtendedASCII(ch, fnc1) {
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return ch !== fnc1 && ch >= 128 && ch <= 255;
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}
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static isInC40Shift1Set(ch) {
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return ch <= 31;
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}
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static isInC40Shift2Set(ch, fnc1) {
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for (const c40Shift2Char of C40_SHIFT2_CHARS) {
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if (c40Shift2Char.charCodeAt(0) === ch) {
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return true;
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}
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}
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return ch === fnc1;
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}
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static isInTextShift1Set(ch) {
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return this.isInC40Shift1Set(ch);
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}
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static isInTextShift2Set(ch, fnc1) {
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return this.isInC40Shift2Set(ch, fnc1);
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}
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/**
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* Performs message encoding of a DataMatrix message
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*
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* @param msg the message
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* @param priorityCharset The preferred {@link Charset}. When the value of the argument is null, the algorithm
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* chooses charsets that leads to a minimal representation. Otherwise the algorithm will use the priority
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* charset to encode any character in the input that can be encoded by it if the charset is among the
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* supported charsets.
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* @param fnc1 denotes the character in the input that represents the FNC1 character or -1 if this is not a GS1
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* bar code. If the value is not -1 then a FNC1 is also prepended.
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* @param shape requested shape.
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* @return the encoded message (the char values range from 0 to 255)
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*/
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static encodeHighLevel(msg, priorityCharset = null, fnc1 = -1, shape = 0 /* FORCE_NONE */) {
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let macroId = 0;
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if (msg.startsWith(MACRO_05_HEADER) && msg.endsWith(MACRO_TRAILER)) {
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macroId = 5;
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msg = msg.substring(MACRO_05_HEADER.length, msg.length - 2);
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}
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else if (msg.startsWith(MACRO_06_HEADER) && msg.endsWith(MACRO_TRAILER)) {
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macroId = 6;
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msg = msg.substring(MACRO_06_HEADER.length, msg.length - 2);
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}
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return decodeURIComponent(escape(String.fromCharCode(...this.encode(msg, priorityCharset, fnc1, shape, macroId))));
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}
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/**
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* Encodes input minimally and returns an array of the codewords
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*
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* @param input The string to encode
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* @param priorityCharset The preferred {@link Charset}. When the value of the argument is null, the algorithm
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* chooses charsets that leads to a minimal representation. Otherwise the algorithm will use the priority
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* charset to encode any character in the input that can be encoded by it if the charset is among the
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* supported charsets.
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* @param fnc1 denotes the character in the input that represents the FNC1 character or -1 if this is not a GS1
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* bar code. If the value is not -1 then a FNC1 is also prepended.
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* @param shape requested shape.
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* @param macroId Prepends the specified macro function in case that a value of 5 or 6 is specified.
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* @return An array of bytes representing the codewords of a minimal encoding.
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*/
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static encode(input, priorityCharset, fnc1, shape, macroId) {
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return this.encodeMinimally(new Input(input, priorityCharset, fnc1, shape, macroId)).getBytes();
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}
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static addEdge(edges, edge) {
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const vertexIndex = edge.fromPosition + edge.characterLength;
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if (edges[vertexIndex][edge.getEndMode()] === null ||
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edges[vertexIndex][edge.getEndMode()].cachedTotalSize >
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edge.cachedTotalSize) {
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edges[vertexIndex][edge.getEndMode()] = edge;
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}
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}
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/** @return the number of words in which the string starting at from can be encoded in c40 or text mode.
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* The number of characters encoded is returned in characterLength.
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* The number of characters encoded is also minimal in the sense that the algorithm stops as soon
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* as a character encoding fills a C40 word competely (three C40 values). An exception is at the
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* end of the string where two C40 values are allowed (according to the spec the third c40 value
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* is filled with 0 (Shift 1) in this case).
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*/
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static getNumberOfC40Words(input, from, c40, characterLength) {
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let thirdsCount = 0;
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for (let i = from; i < input.length(); i++) {
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if (input.isECI(i)) {
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characterLength[0] = 0;
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return 0;
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}
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const ci = input.charAt(i);
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if ((c40 && HighLevelEncoder.isNativeC40(ci)) ||
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(!c40 && HighLevelEncoder.isNativeText(ci))) {
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thirdsCount++; // native
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}
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else if (!MinimalEncoder.isExtendedASCII(ci, input.getFNC1Character())) {
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thirdsCount += 2; // shift
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}
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else {
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const asciiValue = ci & 0xff;
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if (asciiValue >= 128 &&
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((c40 && HighLevelEncoder.isNativeC40(asciiValue - 128)) ||
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(!c40 && HighLevelEncoder.isNativeText(asciiValue - 128)))) {
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thirdsCount += 3; // shift, Upper shift
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}
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else {
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thirdsCount += 4; // shift, Upper shift, shift
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}
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}
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if (thirdsCount % 3 === 0 ||
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((thirdsCount - 2) % 3 === 0 && i + 1 === input.length())) {
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characterLength[0] = i - from + 1;
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return Math.ceil(thirdsCount / 3.0);
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}
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}
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characterLength[0] = 0;
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return 0;
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}
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static addEdges(input, edges, from, previous) {
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if (input.isECI(from)) {
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this.addEdge(edges, new Edge(input, Mode.ASCII, from, 1, previous));
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return;
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}
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const ch = input.charAt(from);
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if (previous === null || previous.getEndMode() !== Mode.EDF) {
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// not possible to unlatch a full EDF edge to something
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// else
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if (HighLevelEncoder.isDigit(ch) &&
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input.haveNCharacters(from, 2) &&
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HighLevelEncoder.isDigit(input.charAt(from + 1))) {
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// two digits ASCII encoded
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this.addEdge(edges, new Edge(input, Mode.ASCII, from, 2, previous));
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}
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else {
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// one ASCII encoded character or an extended character via Upper Shift
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this.addEdge(edges, new Edge(input, Mode.ASCII, from, 1, previous));
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}
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const modes = [Mode.C40, Mode.TEXT];
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for (const mode of modes) {
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const characterLength = [];
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if (MinimalEncoder.getNumberOfC40Words(input, from, mode === Mode.C40, characterLength) > 0) {
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this.addEdge(edges, new Edge(input, mode, from, characterLength[0], previous));
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}
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}
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if (input.haveNCharacters(from, 3) &&
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HighLevelEncoder.isNativeX12(input.charAt(from)) &&
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HighLevelEncoder.isNativeX12(input.charAt(from + 1)) &&
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HighLevelEncoder.isNativeX12(input.charAt(from + 2))) {
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this.addEdge(edges, new Edge(input, Mode.X12, from, 3, previous));
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}
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this.addEdge(edges, new Edge(input, Mode.B256, from, 1, previous));
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}
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// We create 4 EDF edges, with 1, 2 3 or 4 characters length. The fourth normally doesn't have a latch to ASCII
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// unless it is 2 characters away from the end of the input.
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let i;
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for (i = 0; i < 3; i++) {
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const pos = from + i;
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if (input.haveNCharacters(pos, 1) &&
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HighLevelEncoder.isNativeEDIFACT(input.charAt(pos))) {
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this.addEdge(edges, new Edge(input, Mode.EDF, from, i + 1, previous));
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}
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else {
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break;
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}
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}
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if (i === 3 &&
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input.haveNCharacters(from, 4) &&
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HighLevelEncoder.isNativeEDIFACT(input.charAt(from + 3))) {
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this.addEdge(edges, new Edge(input, Mode.EDF, from, 4, previous));
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}
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}
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static encodeMinimally(input) {
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/* The minimal encoding is computed by Dijkstra. The acyclic graph is modeled as follows:
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* A vertex represents a combination of a position in the input and an encoding mode where position 0
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* denotes the position left of the first character, 1 the position left of the second character and so on.
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* Likewise the end vertices are located after the last character at position input.length().
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* For any position there might be up to six vertices, one for each of the encoding types ASCII, C40, TEXT, X12,
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* EDF and B256.
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*
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* As an example consider the input string "ABC123" then at position 0 there is only one vertex with the default
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* ASCII encodation. At position 3 there might be vertices for the types ASCII, C40, X12, EDF and B256.
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*
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* An edge leading to such a vertex encodes one or more of the characters left of the position that the vertex
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* represents. It encodes the characters in the encoding mode of the vertex that it ends on. In other words,
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* all edges leading to a particular vertex encode the same characters (the length of the suffix can vary) using the same
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* encoding mode.
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* As an example consider the input string "ABC123" and the vertex (4,EDF). Possible edges leading to this vertex
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* are:
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* (0,ASCII) --EDF(ABC1)--> (4,EDF)
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* (1,ASCII) --EDF(BC1)--> (4,EDF)
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* (1,B256) --EDF(BC1)--> (4,EDF)
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* (1,EDF) --EDF(BC1)--> (4,EDF)
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* (2,ASCII) --EDF(C1)--> (4,EDF)
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* (2,B256) --EDF(C1)--> (4,EDF)
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* (2,EDF) --EDF(C1)--> (4,EDF)
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* (3,ASCII) --EDF(1)--> (4,EDF)
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* (3,B256) --EDF(1)--> (4,EDF)
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* (3,EDF) --EDF(1)--> (4,EDF)
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* (3,C40) --EDF(1)--> (4,EDF)
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* (3,X12) --EDF(1)--> (4,EDF)
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*
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* The edges leading to a vertex are stored in such a way that there is a fast way to enumerate the edges ending
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* on a particular vertex.
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*
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* The algorithm processes the vertices in order of their position thereby performing the following:
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*
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* For every vertex at position i the algorithm enumerates the edges ending on the vertex and removes all but the
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* shortest from that list.
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* Then it processes the vertices for the position i+1. If i+1 == input.length() then the algorithm ends
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* and chooses the the edge with the smallest size from any of the edges leading to vertices at this position.
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* Otherwise the algorithm computes all possible outgoing edges for the vertices at the position i+1
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*
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* Examples:
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* The process is illustrated by showing the graph (edges) after each iteration from left to right over the input:
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* An edge is drawn as follows "(" + fromVertex + ") -- " + encodingMode + "(" + encodedInput + ") (" +
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* accumulatedSize + ") --> (" + toVertex + ")"
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*
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* Example 1 encoding the string "ABCDEFG":
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*
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*
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* Situation after adding edges to the start vertex (0,ASCII)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII)
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* (0,ASCII) B256(A) (3) --> (1,B256)
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* (0,ASCII) EDF(AB) (4) --> (2,EDF)
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* (0,ASCII) C40(ABC) (3) --> (3,C40)
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* (0,ASCII) TEXT(ABC) (5) --> (3,TEXT)
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* (0,ASCII) X12(ABC) (3) --> (3,X12)
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* (0,ASCII) EDF(ABC) (4) --> (3,EDF)
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* (0,ASCII) EDF(ABCD) (4) --> (4,EDF)
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*
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* Situation after adding edges to vertices at position 1
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII)
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* (0,ASCII) B256(A) (3) --> (1,B256)
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* (0,ASCII) EDF(AB) (4) --> (2,EDF)
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* (0,ASCII) C40(ABC) (3) --> (3,C40)
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* (0,ASCII) TEXT(ABC) (5) --> (3,TEXT)
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* (0,ASCII) X12(ABC) (3) --> (3,X12)
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* (0,ASCII) EDF(ABC) (4) --> (3,EDF)
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* (0,ASCII) EDF(ABCD) (4) --> (4,EDF)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) ASCII(B) (2) --> (2,ASCII)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) B256(B) (4) --> (2,B256)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) EDF(BC) (5) --> (3,EDF)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) C40(BCD) (4) --> (4,C40)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) TEXT(BCD) (6) --> (4,TEXT)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) X12(BCD) (4) --> (4,X12)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) EDF(BCD) (5) --> (4,EDF)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) EDF(BCDE) (5) --> (5,EDF)
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* (0,ASCII) B256(A) (3) --> (1,B256) ASCII(B) (4) --> (2,ASCII)
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* (0,ASCII) B256(A) (3) --> (1,B256) B256(B) (3) --> (2,B256)
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* (0,ASCII) B256(A) (3) --> (1,B256) EDF(BC) (6) --> (3,EDF)
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* (0,ASCII) B256(A) (3) --> (1,B256) C40(BCD) (5) --> (4,C40)
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* (0,ASCII) B256(A) (3) --> (1,B256) TEXT(BCD) (7) --> (4,TEXT)
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* (0,ASCII) B256(A) (3) --> (1,B256) X12(BCD) (5) --> (4,X12)
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* (0,ASCII) B256(A) (3) --> (1,B256) EDF(BCD) (6) --> (4,EDF)
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* (0,ASCII) B256(A) (3) --> (1,B256) EDF(BCDE) (6) --> (5,EDF)
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*
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* Edge "(1,ASCII) ASCII(B) (2) --> (2,ASCII)" is minimal for the vertex (2,ASCII) so that edge "(1,B256) ASCII(B) (4) --> (2,ASCII)" is removed.
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* Edge "(1,B256) B256(B) (3) --> (2,B256)" is minimal for the vertext (2,B256) so that the edge "(1,ASCII) B256(B) (4) --> (2,B256)" is removed.
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*
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* Situation after adding edges to vertices at position 2
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII)
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* (0,ASCII) B256(A) (3) --> (1,B256)
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* (0,ASCII) EDF(AB) (4) --> (2,EDF)
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* (0,ASCII) C40(ABC) (3) --> (3,C40)
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* (0,ASCII) TEXT(ABC) (5) --> (3,TEXT)
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* (0,ASCII) X12(ABC) (3) --> (3,X12)
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* (0,ASCII) EDF(ABC) (4) --> (3,EDF)
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* (0,ASCII) EDF(ABCD) (4) --> (4,EDF)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) ASCII(B) (2) --> (2,ASCII)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) EDF(BC) (5) --> (3,EDF)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) C40(BCD) (4) --> (4,C40)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) TEXT(BCD) (6) --> (4,TEXT)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) X12(BCD) (4) --> (4,X12)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) EDF(BCD) (5) --> (4,EDF)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) EDF(BCDE) (5) --> (5,EDF)
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* (0,ASCII) B256(A) (3) --> (1,B256) B256(B) (3) --> (2,B256)
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* (0,ASCII) B256(A) (3) --> (1,B256) EDF(BC) (6) --> (3,EDF)
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* (0,ASCII) B256(A) (3) --> (1,B256) C40(BCD) (5) --> (4,C40)
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* (0,ASCII) B256(A) (3) --> (1,B256) TEXT(BCD) (7) --> (4,TEXT)
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* (0,ASCII) B256(A) (3) --> (1,B256) X12(BCD) (5) --> (4,X12)
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* (0,ASCII) B256(A) (3) --> (1,B256) EDF(BCD) (6) --> (4,EDF)
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* (0,ASCII) B256(A) (3) --> (1,B256) EDF(BCDE) (6) --> (5,EDF)
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* (0,ASCII) EDF(AB) (4) --> (2,EDF) ASCII(C) (5) --> (3,ASCII)
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* (0,ASCII) EDF(AB) (4) --> (2,EDF) B256(C) (6) --> (3,B256)
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* (0,ASCII) EDF(AB) (4) --> (2,EDF) EDF(CD) (7) --> (4,EDF)
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* (0,ASCII) EDF(AB) (4) --> (2,EDF) C40(CDE) (6) --> (5,C40)
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* (0,ASCII) EDF(AB) (4) --> (2,EDF) TEXT(CDE) (8) --> (5,TEXT)
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* (0,ASCII) EDF(AB) (4) --> (2,EDF) X12(CDE) (6) --> (5,X12)
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* (0,ASCII) EDF(AB) (4) --> (2,EDF) EDF(CDE) (7) --> (5,EDF)
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* (0,ASCII) EDF(AB) (4) --> (2,EDF) EDF(CDEF) (7) --> (6,EDF)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) ASCII(B) (2) --> (2,ASCII) ASCII(C) (3) --> (3,ASCII)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) ASCII(B) (2) --> (2,ASCII) B256(C) (5) --> (3,B256)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) ASCII(B) (2) --> (2,ASCII) EDF(CD) (6) --> (4,EDF)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) ASCII(B) (2) --> (2,ASCII) C40(CDE) (5) --> (5,C40)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) ASCII(B) (2) --> (2,ASCII) TEXT(CDE) (7) --> (5,TEXT)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) ASCII(B) (2) --> (2,ASCII) X12(CDE) (5) --> (5,X12)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) ASCII(B) (2) --> (2,ASCII) EDF(CDE) (6) --> (5,EDF)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) ASCII(B) (2) --> (2,ASCII) EDF(CDEF) (6) --> (6,EDF)
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* (0,ASCII) B256(A) (3) --> (1,B256) B256(B) (3) --> (2,B256) ASCII(C) (4) --> (3,ASCII)
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* (0,ASCII) B256(A) (3) --> (1,B256) B256(B) (3) --> (2,B256) B256(C) (4) --> (3,B256)
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* (0,ASCII) B256(A) (3) --> (1,B256) B256(B) (3) --> (2,B256) EDF(CD) (6) --> (4,EDF)
|
* (0,ASCII) B256(A) (3) --> (1,B256) B256(B) (3) --> (2,B256) C40(CDE) (5) --> (5,C40)
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* (0,ASCII) B256(A) (3) --> (1,B256) B256(B) (3) --> (2,B256) TEXT(CDE) (7) --> (5,TEXT)
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* (0,ASCII) B256(A) (3) --> (1,B256) B256(B) (3) --> (2,B256) X12(CDE) (5) --> (5,X12)
|
* (0,ASCII) B256(A) (3) --> (1,B256) B256(B) (3) --> (2,B256) EDF(CDE) (6) --> (5,EDF)
|
* (0,ASCII) B256(A) (3) --> (1,B256) B256(B) (3) --> (2,B256) EDF(CDEF) (6) --> (6,EDF)
|
*
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* Edge "(2,ASCII) ASCII(C) (3) --> (3,ASCII)" is minimal for the vertex (3,ASCII) so that edges "(2,EDF) ASCII(C) (5) --> (3,ASCII)"
|
* and "(2,B256) ASCII(C) (4) --> (3,ASCII)" can be removed.
|
* Edge "(0,ASCII) EDF(ABC) (4) --> (3,EDF)" is minimal for the vertex (3,EDF) so that edges "(1,ASCII) EDF(BC) (5) --> (3,EDF)"
|
* and "(1,B256) EDF(BC) (6) --> (3,EDF)" can be removed.
|
* Edge "(2,B256) B256(C) (4) --> (3,B256)" is minimal for the vertex (3,B256) so that edges "(2,ASCII) B256(C) (5) --> (3,B256)"
|
* and "(2,EDF) B256(C) (6) --> (3,B256)" can be removed.
|
*
|
* This continues for vertices 3 thru 7
|
*
|
* Situation after adding edges to vertices at position 7
|
* (0,ASCII) ASCII(A) (1) --> (1,ASCII)
|
* (0,ASCII) B256(A) (3) --> (1,B256)
|
* (0,ASCII) EDF(AB) (4) --> (2,EDF)
|
* (0,ASCII) C40(ABC) (3) --> (3,C40)
|
* (0,ASCII) TEXT(ABC) (5) --> (3,TEXT)
|
* (0,ASCII) X12(ABC) (3) --> (3,X12)
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* (0,ASCII) EDF(ABC) (4) --> (3,EDF)
|
* (0,ASCII) EDF(ABCD) (4) --> (4,EDF)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) ASCII(B) (2) --> (2,ASCII)
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* (0,ASCII) ASCII(A) (1) --> (1,ASCII) C40(BCD) (4) --> (4,C40)
|
* (0,ASCII) ASCII(A) (1) --> (1,ASCII) TEXT(BCD) (6) --> (4,TEXT)
|
* (0,ASCII) ASCII(A) (1) --> (1,ASCII) X12(BCD) (4) --> (4,X12)
|
* (0,ASCII) ASCII(A) (1) --> (1,ASCII) EDF(BCDE) (5) --> (5,EDF)
|
* (0,ASCII) B256(A) (3) --> (1,B256) B256(B) (3) --> (2,B256)
|
* (0,ASCII) C40(ABC) (3) --> (3,C40) C40(DEF) (5) --> (6,C40)
|
* (0,ASCII) X12(ABC) (3) --> (3,X12) X12(DEF) (5) --> (6,X12)
|
* (0,ASCII) ASCII(A) (1) --> (1,ASCII) ASCII(B) (2) --> (2,ASCII) ASCII(C) (3) --> (3,ASCII)
|
* (0,ASCII) ASCII(A) (1) --> (1,ASCII) ASCII(B) (2) --> (2,ASCII) C40(CDE) (5) --> (5,C40)
|
* (0,ASCII) ASCII(A) (1) --> (1,ASCII) ASCII(B) (2) --> (2,ASCII) TEXT(CDE) (7) --> (5,TEXT)
|
* (0,ASCII) ASCII(A) (1) --> (1,ASCII) ASCII(B) (2) --> (2,ASCII) X12(CDE) (5) --> (5,X12)
|
* (0,ASCII) ASCII(A) (1) --> (1,ASCII) ASCII(B) (2) --> (2,ASCII) EDF(CDEF) (6) --> (6,EDF)
|
* (0,ASCII) ASCII(A) (1) --> (1,ASCII) C40(BCD) (4) --> (4,C40) C40(EFG) (6) --> (7,C40) //Solution 1
|
* (0,ASCII) ASCII(A) (1) --> (1,ASCII) X12(BCD) (4) --> (4,X12) X12(EFG) (6) --> (7,X12) //Solution 2
|
* (0,ASCII) B256(A) (3) --> (1,B256) B256(B) (3) --> (2,B256) B256(C) (4) --> (3,B256)
|
* (0,ASCII) ASCII(A) (1) --> (1,ASCII) ASCII(B) (2) --> (2,ASCII) ASCII(C) (3) --> (3,ASCII) ASCII(D) (4) --> (4,ASCII)
|
* (0,ASCII) ASCII(A) (1) --> (1,ASCII) ASCII(B) (2) --> (2,ASCII) ASCII(C) (3) --> (3,ASCII) TEXT(DEF) (8) --> (6,TEXT)
|
* (0,ASCII) ASCII(A) (1) --> (1,ASCII) ASCII(B) (2) --> (2,ASCII) ASCII(C) (3) --> (3,ASCII) EDF(DEFG) (7) --> (7,EDF)
|
* (0,ASCII) B256(A) (3) --> (1,B256) B256(B) (3) --> (2,B256) B256(C) (4) --> (3,B256) B256(D) (5) --> (4,B256)
|
* (0,ASCII) ASCII(A) (1) --> (1,ASCII) ASCII(B) (2) --> (2,ASCII) ASCII(C) (3) --> (3,ASCII) ASCII(D) (4) --> (4,ASCII) ASCII(E) (5) --> (5,ASCII)
|
* (0,ASCII) ASCII(A) (1) --> (1,ASCII) ASCII(B) (2) --> (2,ASCII) ASCII(C) (3) --> (3,ASCII) ASCII(D) (4) --> (4,ASCII) TEXT(EFG) (9) --> (7,TEXT)
|
* (0,ASCII) B256(A) (3) --> (1,B256) B256(B) (3) --> (2,B256) B256(C) (4) --> (3,B256) B256(D) (5) --> (4,B256) B256(E) (6) --> (5,B256)
|
* (0,ASCII) ASCII(A) (1) --> (1,ASCII) ASCII(B) (2) --> (2,ASCII) ASCII(C) (3) --> (3,ASCII) ASCII(D) (4) --> (4,ASCII) ASCII(E) (5) --> (5,ASCII) ASCII(F) (6) --> (6,ASCII)
|
* (0,ASCII) B256(A) (3) --> (1,B256) B256(B) (3) --> (2,B256) B256(C) (4) --> (3,B256) B256(D) (5) --> (4,B256) B256(E) (6) --> (5,B256) B256(F) (7) --> (6,B256)
|
* (0,ASCII) ASCII(A) (1) --> (1,ASCII) ASCII(B) (2) --> (2,ASCII) ASCII(C) (3) --> (3,ASCII) ASCII(D) (4) --> (4,ASCII) ASCII(E) (5) --> (5,ASCII) ASCII(F) (6) --> (6,ASCII) ASCII(G) (7) --> (7,ASCII)
|
* (0,ASCII) B256(A) (3) --> (1,B256) B256(B) (3) --> (2,B256) B256(C) (4) --> (3,B256) B256(D) (5) --> (4,B256) B256(E) (6) --> (5,B256) B256(F) (7) --> (6,B256) B256(G) (8) --> (7,B256)
|
*
|
* Hence a minimal encoding of "ABCDEFG" is either ASCII(A),C40(BCDEFG) or ASCII(A), X12(BCDEFG) with a size of 5 bytes.
|
*/
|
const inputLength = input.length();
|
// Array that represents vertices. There is a vertex for every character and mode.
|
// The last dimension in the array below encodes the 6 modes ASCII, C40, TEXT, X12, EDF and B256
|
const edges = Array(inputLength + 1)
|
.fill(null)
|
.map(() => Array(6).fill(0));
|
this.addEdges(input, edges, 0, null);
|
for (let i = 1; i <= inputLength; i++) {
|
for (let j = 0; j < 6; j++) {
|
if (edges[i][j] !== null && i < inputLength) {
|
this.addEdges(input, edges, i, edges[i][j]);
|
}
|
}
|
// optimize memory by removing edges that have been passed.
|
for (let j = 0; j < 6; j++) {
|
edges[i - 1][j] = null;
|
}
|
}
|
let minimalJ = -1;
|
let minimalSize = Integer.MAX_VALUE;
|
for (let j = 0; j < 6; j++) {
|
if (edges[inputLength][j] !== null) {
|
const edge = edges[inputLength][j];
|
const size = j >= 1 && j <= 3 ? edge.cachedTotalSize + 1 : edge.cachedTotalSize; // C40, TEXT and X12 need an
|
// extra unlatch at the end
|
if (size < minimalSize) {
|
minimalSize = size;
|
minimalJ = j;
|
}
|
}
|
}
|
if (minimalJ < 0) {
|
throw new Error('Failed to encode "' + input + '"');
|
}
|
return new Result(edges[inputLength][minimalJ]);
|
}
|
}
|
class Result {
|
constructor(solution) {
|
const input = solution.input;
|
let size = 0;
|
let bytesAL = [];
|
const randomizePostfixLength = [];
|
const randomizeLengths = [];
|
if ((solution.mode === Mode.C40 ||
|
solution.mode === Mode.TEXT ||
|
solution.mode === Mode.X12) &&
|
solution.getEndMode() !== Mode.ASCII) {
|
size += this.prepend(Edge.getBytes(254), bytesAL);
|
}
|
let current = solution;
|
while (current !== null) {
|
size += this.prepend(current.getDataBytes(), bytesAL);
|
if (current.previous === null ||
|
current.getPreviousStartMode() !== current.getMode()) {
|
if (current.getMode() === Mode.B256) {
|
if (size <= 249) {
|
bytesAL.unshift(size);
|
size++;
|
}
|
else {
|
bytesAL.unshift(size % 250);
|
bytesAL.unshift(size / 250 + 249);
|
size += 2;
|
}
|
randomizePostfixLength.push(bytesAL.length);
|
randomizeLengths.push(size);
|
}
|
this.prepend(current.getLatchBytes(), bytesAL);
|
size = 0;
|
}
|
current = current.previous;
|
}
|
if (input.getMacroId() === 5) {
|
size += this.prepend(Edge.getBytes(236), bytesAL);
|
}
|
else if (input.getMacroId() === 6) {
|
size += this.prepend(Edge.getBytes(237), bytesAL);
|
}
|
if (input.getFNC1Character() > 0) {
|
size += this.prepend(Edge.getBytes(232), bytesAL);
|
}
|
for (let i = 0; i < randomizePostfixLength.length; i++) {
|
this.applyRandomPattern(bytesAL, bytesAL.length - randomizePostfixLength[i], randomizeLengths[i]);
|
}
|
// add padding
|
const capacity = solution.getMinSymbolSize(bytesAL.length);
|
if (bytesAL.length < capacity) {
|
bytesAL.push(129);
|
}
|
while (bytesAL.length < capacity) {
|
bytesAL.push(this.randomize253State(bytesAL.length + 1));
|
}
|
this.bytes = new Uint8Array(bytesAL.length);
|
for (let i = 0; i < this.bytes.length; i++) {
|
this.bytes[i] = bytesAL[i];
|
}
|
}
|
prepend(bytes, into) {
|
for (let i = bytes.length - 1; i >= 0; i--) {
|
into.unshift(bytes[i]);
|
}
|
return bytes.length;
|
}
|
randomize253State(codewordPosition) {
|
const pseudoRandom = ((149 * codewordPosition) % 253) + 1;
|
const tempVariable = 129 + pseudoRandom;
|
return tempVariable <= 254 ? tempVariable : tempVariable - 254;
|
}
|
applyRandomPattern(bytesAL, startPosition, length) {
|
for (let i = 0; i < length; i++) {
|
// See "B.1 253-state algorithm
|
const Pad_codeword_position = startPosition + i;
|
const Pad_codeword_value = bytesAL[Pad_codeword_position] & 0xff;
|
const pseudo_random_number = ((149 * (Pad_codeword_position + 1)) % 255) + 1;
|
const temp_variable = Pad_codeword_value + pseudo_random_number;
|
bytesAL[Pad_codeword_position] =
|
temp_variable <= 255 ? temp_variable : temp_variable - 256;
|
}
|
}
|
getBytes() {
|
return this.bytes;
|
}
|
}
|
class Edge {
|
constructor(input, mode, fromPosition, characterLength, previous) {
|
this.input = input;
|
this.mode = mode;
|
this.fromPosition = fromPosition;
|
this.characterLength = characterLength;
|
this.previous = previous;
|
this.allCodewordCapacities = [
|
3, 5, 8, 10, 12, 16, 18, 22, 30, 32, 36, 44, 49, 62, 86, 114, 144, 174, 204,
|
280, 368, 456, 576, 696, 816, 1050, 1304, 1558,
|
];
|
this.squareCodewordCapacities = [
|
3, 5, 8, 12, 18, 22, 30, 36, 44, 62, 86, 114, 144, 174, 204, 280, 368, 456,
|
576, 696, 816, 1050, 1304, 1558,
|
];
|
this.rectangularCodewordCapacities = [5, 10, 16, 33, 32, 49];
|
if (!(fromPosition + characterLength <= input.length())) {
|
throw new Error('Invalid edge');
|
}
|
let size = previous !== null ? previous.cachedTotalSize : 0;
|
const previousMode = this.getPreviousMode();
|
/*
|
* Switching modes
|
* ASCII -> C40: latch 230
|
* ASCII -> TEXT: latch 239
|
* ASCII -> X12: latch 238
|
* ASCII -> EDF: latch 240
|
* ASCII -> B256: latch 231
|
* C40 -> ASCII: word(c1,c2,c3), 254
|
* TEXT -> ASCII: word(c1,c2,c3), 254
|
* X12 -> ASCII: word(c1,c2,c3), 254
|
* EDIFACT -> ASCII: Unlatch character,0,0,0 or c1,Unlatch character,0,0 or c1,c2,Unlatch character,0 or
|
* c1,c2,c3,Unlatch character
|
* B256 -> ASCII: without latch after n bytes
|
*/
|
switch (mode) {
|
case Mode.ASCII:
|
size++;
|
if (input.isECI(fromPosition) ||
|
MinimalEncoder.isExtendedASCII(input.charAt(fromPosition), input.getFNC1Character())) {
|
size++;
|
}
|
if (previousMode === Mode.C40 ||
|
previousMode === Mode.TEXT ||
|
previousMode === Mode.X12) {
|
size++; // unlatch 254 to ASCII
|
}
|
break;
|
case Mode.B256:
|
size++;
|
if (previousMode !== Mode.B256) {
|
size++; // byte count
|
}
|
else if (this.getB256Size() === 250) {
|
size++; // extra byte count
|
}
|
if (previousMode === Mode.ASCII) {
|
size++; // latch to B256
|
}
|
else if (previousMode === Mode.C40 ||
|
previousMode === Mode.TEXT ||
|
previousMode === Mode.X12) {
|
size += 2; // unlatch to ASCII, latch to B256
|
}
|
break;
|
case Mode.C40:
|
case Mode.TEXT:
|
case Mode.X12:
|
if (mode === Mode.X12) {
|
size += 2;
|
}
|
else {
|
let charLen = [];
|
size +=
|
MinimalEncoder.getNumberOfC40Words(input, fromPosition, mode === Mode.C40, charLen) * 2;
|
}
|
if (previousMode === Mode.ASCII || previousMode === Mode.B256) {
|
size++; // additional byte for latch from ASCII to this mode
|
}
|
else if (previousMode !== mode &&
|
(previousMode === Mode.C40 ||
|
previousMode === Mode.TEXT ||
|
previousMode === Mode.X12)) {
|
size += 2; // unlatch 254 to ASCII followed by latch to this mode
|
}
|
break;
|
case Mode.EDF:
|
size += 3;
|
if (previousMode === Mode.ASCII || previousMode === Mode.B256) {
|
size++; // additional byte for latch from ASCII to this mode
|
}
|
else if (previousMode === Mode.C40 ||
|
previousMode === Mode.TEXT ||
|
previousMode === Mode.X12) {
|
size += 2; // unlatch 254 to ASCII followed by latch to this mode
|
}
|
break;
|
}
|
this.cachedTotalSize = size;
|
}
|
// does not count beyond 250
|
getB256Size() {
|
let cnt = 0;
|
let current = this;
|
while (current !== null && current.mode === Mode.B256 && cnt <= 250) {
|
cnt++;
|
current = current.previous;
|
}
|
return cnt;
|
}
|
getPreviousStartMode() {
|
return this.previous === null ? Mode.ASCII : this.previous.mode;
|
}
|
getPreviousMode() {
|
return this.previous === null ? Mode.ASCII : this.previous.getEndMode();
|
}
|
/** Returns Mode.ASCII in case that:
|
* - Mode is EDIFACT and characterLength is less than 4 or the remaining characters can be encoded in at most 2
|
* ASCII bytes.
|
* - Mode is C40, TEXT or X12 and the remaining characters can be encoded in at most 1 ASCII byte.
|
* Returns mode in all other cases.
|
* */
|
getEndMode() {
|
if (this.mode === Mode.EDF) {
|
if (this.characterLength < 4) {
|
return Mode.ASCII;
|
}
|
const lastASCII = this.getLastASCII(); // see 5.2.8.2 EDIFACT encodation Rules
|
if (lastASCII > 0 &&
|
this.getCodewordsRemaining(this.cachedTotalSize + lastASCII) <=
|
2 - lastASCII) {
|
return Mode.ASCII;
|
}
|
}
|
if (this.mode === Mode.C40 ||
|
this.mode === Mode.TEXT ||
|
this.mode === Mode.X12) {
|
// see 5.2.5.2 C40 encodation rules and 5.2.7.2 ANSI X12 encodation rules
|
if (this.fromPosition + this.characterLength >= this.input.length() &&
|
this.getCodewordsRemaining(this.cachedTotalSize) === 0) {
|
return Mode.ASCII;
|
}
|
const lastASCII = this.getLastASCII();
|
if (lastASCII === 1 &&
|
this.getCodewordsRemaining(this.cachedTotalSize + 1) === 0) {
|
return Mode.ASCII;
|
}
|
}
|
return this.mode;
|
}
|
getMode() {
|
return this.mode;
|
}
|
/** Peeks ahead and returns 1 if the postfix consists of exactly two digits, 2 if the postfix consists of exactly
|
* two consecutive digits and a non extended character or of 4 digits.
|
* Returns 0 in any other case
|
**/
|
getLastASCII() {
|
const length = this.input.length();
|
const from = this.fromPosition + this.characterLength;
|
if (length - from > 4 || from >= length) {
|
return 0;
|
}
|
if (length - from === 1) {
|
if (MinimalEncoder.isExtendedASCII(this.input.charAt(from), this.input.getFNC1Character())) {
|
return 0;
|
}
|
return 1;
|
}
|
if (length - from === 2) {
|
if (MinimalEncoder.isExtendedASCII(this.input.charAt(from), this.input.getFNC1Character()) ||
|
MinimalEncoder.isExtendedASCII(this.input.charAt(from + 1), this.input.getFNC1Character())) {
|
return 0;
|
}
|
if (HighLevelEncoder.isDigit(this.input.charAt(from)) &&
|
HighLevelEncoder.isDigit(this.input.charAt(from + 1))) {
|
return 1;
|
}
|
return 2;
|
}
|
if (length - from === 3) {
|
if (HighLevelEncoder.isDigit(this.input.charAt(from)) &&
|
HighLevelEncoder.isDigit(this.input.charAt(from + 1)) &&
|
!MinimalEncoder.isExtendedASCII(this.input.charAt(from + 2), this.input.getFNC1Character())) {
|
return 2;
|
}
|
if (HighLevelEncoder.isDigit(this.input.charAt(from + 1)) &&
|
HighLevelEncoder.isDigit(this.input.charAt(from + 2)) &&
|
!MinimalEncoder.isExtendedASCII(this.input.charAt(from), this.input.getFNC1Character())) {
|
return 2;
|
}
|
return 0;
|
}
|
if (HighLevelEncoder.isDigit(this.input.charAt(from)) &&
|
HighLevelEncoder.isDigit(this.input.charAt(from + 1)) &&
|
HighLevelEncoder.isDigit(this.input.charAt(from + 2)) &&
|
HighLevelEncoder.isDigit(this.input.charAt(from + 3))) {
|
return 2;
|
}
|
return 0;
|
}
|
/** Returns the capacity in codewords of the smallest symbol that has enough capacity to fit the given minimal
|
* number of codewords.
|
**/
|
getMinSymbolSize(minimum) {
|
switch (this.input.getShapeHint()) {
|
case 1 /* FORCE_SQUARE */:
|
for (const capacity of this.squareCodewordCapacities) {
|
if (capacity >= minimum) {
|
return capacity;
|
}
|
}
|
break;
|
case 2 /* FORCE_RECTANGLE */:
|
for (const capacity of this.rectangularCodewordCapacities) {
|
if (capacity >= minimum) {
|
return capacity;
|
}
|
}
|
break;
|
}
|
for (const capacity of this.allCodewordCapacities) {
|
if (capacity >= minimum) {
|
return capacity;
|
}
|
}
|
return this.allCodewordCapacities[this.allCodewordCapacities.length - 1];
|
}
|
/** Returns the remaining capacity in codewords of the smallest symbol that has enough capacity to fit the given
|
* minimal number of codewords.
|
**/
|
getCodewordsRemaining(minimum) {
|
return this.getMinSymbolSize(minimum) - minimum;
|
}
|
static getBytes(c1, c2) {
|
const result = new Uint8Array(c2 ? 2 : 1);
|
result[0] = c1;
|
if (c2) {
|
result[1] = c2;
|
}
|
return result;
|
}
|
setC40Word(bytes, offset, c1, c2, c3) {
|
const val16 = 1600 * (c1 & 0xff) + 40 * (c2 & 0xff) + (c3 & 0xff) + 1;
|
bytes[offset] = val16 / 256;
|
bytes[offset + 1] = val16 % 256;
|
}
|
getX12Value(c) {
|
return c === 13
|
? 0
|
: c === 42
|
? 1
|
: c === 62
|
? 2
|
: c === 32
|
? 3
|
: c >= 48 && c <= 57
|
? c - 44
|
: c >= 65 && c <= 90
|
? c - 51
|
: c;
|
}
|
getX12Words() {
|
if (!(this.characterLength % 3 === 0)) {
|
throw new Error('X12 words must be a multiple of 3');
|
}
|
const result = new Uint8Array((this.characterLength / 3) * 2);
|
for (let i = 0; i < result.length; i += 2) {
|
this.setC40Word(result, i, this.getX12Value(this.input.charAt(this.fromPosition + (i / 2) * 3)), this.getX12Value(this.input.charAt(this.fromPosition + (i / 2) * 3 + 1)), this.getX12Value(this.input.charAt(this.fromPosition + (i / 2) * 3 + 2)));
|
}
|
return result;
|
}
|
getShiftValue(c, c40, fnc1) {
|
return (c40 && MinimalEncoder.isInC40Shift1Set(c)) ||
|
(!c40 && MinimalEncoder.isInTextShift1Set(c))
|
? 0
|
: (c40 && MinimalEncoder.isInC40Shift2Set(c, fnc1)) ||
|
(!c40 && MinimalEncoder.isInTextShift2Set(c, fnc1))
|
? 1
|
: 2;
|
}
|
getC40Value(c40, setIndex, c, fnc1) {
|
if (c === fnc1) {
|
if (!(setIndex === 2)) {
|
throw new Error('FNC1 cannot be used in C40 shift 2');
|
}
|
return 27;
|
}
|
if (c40) {
|
return c <= 31
|
? c
|
: c === 32
|
? 3
|
: c <= 47
|
? c - 33
|
: c <= 57
|
? c - 44
|
: c <= 64
|
? c - 43
|
: c <= 90
|
? c - 51
|
: c <= 95
|
? c - 69
|
: c <= 127
|
? c - 96
|
: c;
|
}
|
else {
|
return c === 0
|
? 0
|
: setIndex === 0 && c <= 3
|
? c - 1 // is this a bug in the spec?
|
: setIndex === 1 && c <= 31
|
? c
|
: c === 32
|
? 3
|
: c >= 33 && c <= 47
|
? c - 33
|
: c >= 48 && c <= 57
|
? c - 44
|
: c >= 58 && c <= 64
|
? c - 43
|
: c >= 65 && c <= 90
|
? c - 64
|
: c >= 91 && c <= 95
|
? c - 69
|
: c === 96
|
? 0
|
: c >= 97 && c <= 122
|
? c - 83
|
: c >= 123 && c <= 127
|
? c - 96
|
: c;
|
}
|
}
|
getC40Words(c40, fnc1) {
|
const c40Values = [];
|
for (let i = 0; i < this.characterLength; i++) {
|
const ci = this.input.charAt(this.fromPosition + i);
|
if ((c40 && HighLevelEncoder.isNativeC40(ci)) ||
|
(!c40 && HighLevelEncoder.isNativeText(ci))) {
|
c40Values.push(this.getC40Value(c40, 0, ci, fnc1));
|
}
|
else if (!MinimalEncoder.isExtendedASCII(ci, fnc1)) {
|
const shiftValue = this.getShiftValue(ci, c40, fnc1);
|
c40Values.push(shiftValue); // Shift[123]
|
c40Values.push(this.getC40Value(c40, shiftValue, ci, fnc1));
|
}
|
else {
|
const asciiValue = (ci & 0xff) - 128;
|
if ((c40 && HighLevelEncoder.isNativeC40(asciiValue)) ||
|
(!c40 && HighLevelEncoder.isNativeText(asciiValue))) {
|
c40Values.push(1); // Shift 2
|
c40Values.push(30); // Upper Shift
|
c40Values.push(this.getC40Value(c40, 0, asciiValue, fnc1));
|
}
|
else {
|
c40Values.push(1); // Shift 2
|
c40Values.push(30); // Upper Shift
|
const shiftValue = this.getShiftValue(asciiValue, c40, fnc1);
|
c40Values.push(shiftValue); // Shift[123]
|
c40Values.push(this.getC40Value(c40, shiftValue, asciiValue, fnc1));
|
}
|
}
|
}
|
if (c40Values.length % 3 !== 0) {
|
if (!((c40Values.length - 2) % 3 === 0 &&
|
this.fromPosition + this.characterLength === this.input.length())) {
|
throw new Error('C40 words must be a multiple of 3');
|
}
|
c40Values.push(0); // pad with 0 (Shift 1)
|
}
|
const result = new Uint8Array((c40Values.length / 3) * 2);
|
let byteIndex = 0;
|
for (let i = 0; i < c40Values.length; i += 3) {
|
this.setC40Word(result, byteIndex, c40Values[i] & 0xff, c40Values[i + 1] & 0xff, c40Values[i + 2] & 0xff);
|
byteIndex += 2;
|
}
|
return result;
|
}
|
getEDFBytes() {
|
const numberOfThirds = Math.ceil(this.characterLength / 4.0);
|
const result = new Uint8Array(numberOfThirds * 3);
|
let pos = this.fromPosition;
|
const endPos = Math.min(this.fromPosition + this.characterLength - 1, this.input.length() - 1);
|
for (let i = 0; i < numberOfThirds; i += 3) {
|
const edfValues = [];
|
for (let j = 0; j < 4; j++) {
|
if (pos <= endPos) {
|
edfValues[j] = this.input.charAt(pos++) & 0x3f;
|
}
|
else {
|
edfValues[j] = pos === endPos + 1 ? 0x1f : 0;
|
}
|
}
|
let val24 = edfValues[0] << 18;
|
val24 |= edfValues[1] << 12;
|
val24 |= edfValues[2] << 6;
|
val24 |= edfValues[3];
|
result[i] = (val24 >> 16) & 0xff;
|
result[i + 1] = (val24 >> 8) & 0xff;
|
result[i + 2] = val24 & 0xff;
|
}
|
return result;
|
}
|
getLatchBytes() {
|
switch (this.getPreviousMode()) {
|
case Mode.ASCII:
|
case Mode.B256: // after B256 ends (via length) we are back to ASCII
|
switch (this.mode) {
|
case Mode.B256:
|
return Edge.getBytes(231);
|
case Mode.C40:
|
return Edge.getBytes(230);
|
case Mode.TEXT:
|
return Edge.getBytes(239);
|
case Mode.X12:
|
return Edge.getBytes(238);
|
case Mode.EDF:
|
return Edge.getBytes(240);
|
}
|
break;
|
case Mode.C40:
|
case Mode.TEXT:
|
case Mode.X12:
|
if (this.mode !== this.getPreviousMode()) {
|
switch (this.mode) {
|
case Mode.ASCII:
|
return Edge.getBytes(254);
|
case Mode.B256:
|
return Edge.getBytes(254, 231);
|
case Mode.C40:
|
return Edge.getBytes(254, 230);
|
case Mode.TEXT:
|
return Edge.getBytes(254, 239);
|
case Mode.X12:
|
return Edge.getBytes(254, 238);
|
case Mode.EDF:
|
return Edge.getBytes(254, 240);
|
}
|
}
|
break;
|
case Mode.EDF:
|
// The rightmost EDIFACT edge always contains an unlatch character
|
if (this.mode !== Mode.EDF) {
|
throw new Error('Cannot switch from EDF to ' + this.mode);
|
}
|
break;
|
}
|
return new Uint8Array(0);
|
}
|
// Important: The function does not return the length bytes (one or two) in case of B256 encoding
|
getDataBytes() {
|
switch (this.mode) {
|
case Mode.ASCII:
|
if (this.input.isECI(this.fromPosition)) {
|
return Edge.getBytes(241, this.input.getECIValue(this.fromPosition) + 1);
|
}
|
else if (MinimalEncoder.isExtendedASCII(this.input.charAt(this.fromPosition), this.input.getFNC1Character())) {
|
return Edge.getBytes(235, this.input.charAt(this.fromPosition) - 127);
|
}
|
else if (this.characterLength === 2) {
|
return Edge.getBytes(this.input.charAt(this.fromPosition) * 10 +
|
this.input.charAt(this.fromPosition + 1) +
|
130);
|
}
|
else if (this.input.isFNC1(this.fromPosition)) {
|
return Edge.getBytes(232);
|
}
|
else {
|
return Edge.getBytes(this.input.charAt(this.fromPosition) + 1);
|
}
|
case Mode.B256:
|
return Edge.getBytes(this.input.charAt(this.fromPosition));
|
case Mode.C40:
|
return this.getC40Words(true, this.input.getFNC1Character());
|
case Mode.TEXT:
|
return this.getC40Words(false, this.input.getFNC1Character());
|
case Mode.X12:
|
return this.getX12Words();
|
case Mode.EDF:
|
return this.getEDFBytes();
|
}
|
}
|
}
|
class Input extends MinimalECIInput {
|
constructor(stringToEncode, priorityCharset, fnc1, shape, macroId) {
|
super(stringToEncode, priorityCharset, fnc1);
|
this.shape = shape;
|
this.macroId = macroId;
|
}
|
getMacroId() {
|
return this.macroId;
|
}
|
getShapeHint() {
|
return this.shape;
|
}
|
}
|
