Re-added ITF support

barcode-building.json

@@ -19,6 +19,11 @@
     "names": "ITF14",
     "barcodeFile": "./ITF14"
   },
+  {
+    "filename": "JsBarcode.itf.min.js",
+    "names": "ITF",
+    "barcodeFile": "./ITF"
+  },
   {
     "filename": "JsBarcode.msi.min.js",
     "names": "MSI, MSI10, MSI11, MSI1010, MSI1110",

src/barcodes/ITF/index.js

@@ -0,0 +1,58 @@
+class ITF{
+	constructor(string){
+		this.string = string;
+
+		this.binaryRepresentation = {
+			  "0":"00110"
+			, "1":"10001"
+			, "2":"01001"
+			, "3":"11000"
+			, "4":"00101"
+			, "5":"10100"
+			, "6":"01100"
+			, "7":"00011"
+			, "8":"10010"
+			, "9":"01010"
+		};
+	}
+
+	valid(){
+		return this.string.search(/^([0-9]{2})+$/) !== -1;
+	}
+
+	encode(){
+		// Always add the same start bits
+		var result = "1010";
+
+		// Calculate all the digit pairs
+		for(var i = 0; i < this.string.length; i += 2){
+			result += this.calculatePair(this.string.substr(i, 2));
+		}
+
+		// Always add the same end bits
+		result += "11101";
+
+		return {
+			data: result,
+			text: this.string
+		};
+	}
+
+	// Calculate the data of a number pair
+	calculatePair(numberPair){
+		var result = "";
+
+		var number1Struct = this.binaryRepresentation[numberPair[0]];
+		var number2Struct = this.binaryRepresentation[numberPair[1]];
+
+		// Take every second bit and add to the result
+		for(var i = 0; i < 5; i++){
+			result += (number1Struct[i] == "1") ? "111" : "1";
+			result += (number2Struct[i] == "1") ? "000" : "0";
+		}
+
+		return result;
+	}
+}
+
+export {ITF};

src/barcodes/index.js

@@ -2,6 +2,7 @@ import {CODE39} from './CODE39/';
 import {CODE128, CODE128A, CODE128B, CODE128C} from './CODE128/';
 import {EAN13, EAN8, EAN5, EAN2, UPC} from './EAN_UPC/';
 import {ITF14} from './ITF14/';
+import {ITF} from './ITF/';
 import {MSI, MSI10, MSI11, MSI1010, MSI1110} from './MSI/';
 import {pharmacode} from './pharmacode/';
 import {GenericBarcode} from './GenericBarcode/';
@@ -11,6 +12,7 @@ export default {
   CODE128, CODE128A, CODE128B, CODE128C,
   EAN13, EAN8, EAN5, EAN2, UPC,
   ITF14,
+  ITF,
   MSI, MSI10, MSI11, MSI1010, MSI1110,
   pharmacode,
   GenericBarcode

test/node/ITF.test.js

@@ -0,0 +1,30 @@
+var assert = require('assert');
+var JsBarcode = require('../../bin/node/JsBarcode.js');
+var Canvas = require("canvas");
+
+
+describe('ITF', function() {
+  it('should be able to include the encoder(s)', function () {
+    ITF = JsBarcode.getModule("ITF");
+    console.log(ITF);
+  });
+
+  it('should be able to encode normal text', function () {
+    var enc = new ITF("123456");
+    assert.equal("101011101000101011100011101110100010100011101000111000101011101"
+      , enc.encode().data);
+  });
+
+  it('should return getText correct', function () {
+    var enc = new ITF("123456");
+    assert.equal("123456", enc.encode().text);
+  });
+
+  it('should warn with invalid text', function () {
+    var enc = new ITF("12345");
+    assert.equal(false, enc.valid());
+
+    var enc = new ITF("1234AB");
+    assert.equal(false, enc.valid());
+  });
+});