added zip to gitignore

.gitignore

@@ -8,6 +8,7 @@
 *.dll
 *.so
 *.dylib
+*.zip
 
 # Test binary, built with `go test -c`
 *.test

answer.txt

@@ -1,46 +0,0 @@
-UPC
-200033148770
-200042041350
-200042041400
-200042064910
-200047796200
-200059594110
-200059660970
-200065290180
-200065290220
-200065290310
-200065290340
-200065290370
-200066707320
-200069556670
-200072791220
-0075849385857
-200072791320
-200072791380
-200072791470
-200072950140
-200079186270
-200079343740
-200081451640
-200081630310
-200106953220
-200156488680
-200157056340
-200168095820
-200168979440
-200172490020
-200177334550
-200177780700
-200177788230
-327582805540
-337582889920
-357582840140
-357582843530
-357582850030
-477039522210
-477039522200
-482000077030
-482000077040
-482000077090
-647582802920
-647582804700

main.go

@@ -71,46 +71,51 @@ func main() {
 		}))
 
 	for _, upc := range upcs {
-		checkForNonStartingNumber := regex.MatchString(upc)
+		if len(upc) > 0 {
+			checkForNonStartingNumber := regex.MatchString(upc)
+
+			if checkForNonStartingNumber {
+				gtins = append(gtins, upc)
+				continue
+			}
+
+			if isNumeric(upc) {
+				gtins = append(gtins, upc)
+				continue
+			}
+
+			// Lower case the E
+			upc = strings.ToLower(upc)
+			// Split scientific notation at the e+ point
+			upcArray := strings.Split(upc, "e+")
+
+			fmt.Println(upcArray)
+
+			// Create separate variables for the split values
+			workingUpc := upcArray[0]
+			upcENumber := upcArray[1]
+
+			// At one to the scientific notation length to allow for the decimal point to be removed
+			upcLength, err := strconv.Atoi(upcENumber)
+			Error(err)
+			upcLength = upcLength + 1
+
+			// Remove the decimal point
+			workingUpc = strings.ReplaceAll(workingUpc, ".", "")
+
+			// Append 0 to UPC to match notation length
+			for len(workingUpc) < upcLength {
+				workingUpc = workingUpc + "0"
+			}
+
+			upc = workingUpc
 
-		if checkForNonStartingNumber {
 			gtins = append(gtins, upc)
-			continue
+			checkBar.Add(1)
+		} else {
+			gtins = append(gtins, "")
+			checkBar.Add(1)
 		}
-
-		if isNumeric(upc) == true {
-			gtins = append(gtins, upc)
-			continue
-		}
-
-		// Lower case the E
-		upc = strings.ToLower(upc)
-		// Split scientific notation at the e+ point
-		upcArray := strings.Split(upc, "e+")
-
-		fmt.Println(upcArray)
-
-		// Create separate variables for the split values
-		workingUpc := upcArray[0]
-		upcENumber := upcArray[1]
-
-		// At one to the scientific notation length to allow for the decimal point to be removed
-		upcLength, err := strconv.Atoi(upcENumber)
-		Error(err)
-		upcLength = upcLength + 1
-
-		// Remove the decimal point
-		workingUpc = strings.ReplaceAll(workingUpc, ".", "")
-
-		// Append 0 to UPC to match notation length
-		for len(workingUpc) < upcLength {
-			workingUpc = workingUpc + "0"
-		}
-
-		upc = workingUpc
-
-		gtins = append(gtins, upc)
-		checkBar.Add(1)
 	}
 
 	answerBar := progressbar.NewOptions(len(gtins),