Added a function to make output multiline

nsencode.go

@@ -31,8 +31,8 @@ func applyShift(value, shift int) int {
 	return shifted
 }
 
-// Function to format the output based on group size
-func formatOutput(encoded []int, groupSize int) string {
+// Function to format the output based on group size and line size
+func formatOutput(encoded []int, groupSize int, lineSize int) string {
 	var output strings.Builder
 	for _, num := range encoded {
 		output.WriteString(fmt.Sprintf("%02d", num))
@@ -40,25 +40,34 @@ func formatOutput(encoded []int, groupSize int) string {
 
 	// Apply grouping
 	finalOutput := output.String()
-	if groupSize > 0 {
-		var groupedOutput strings.Builder
-		for i := 0; i < len(finalOutput); i += groupSize {
-			if i+groupSize < len(finalOutput) {
-				groupedOutput.WriteString(finalOutput[i:i+groupSize] + " ")
-			} else {
-				groupedOutput.WriteString(finalOutput[i:])
-			}
+	var groupedOutput strings.Builder
+	counter := 0
+	groupCounter := 0
+
+	for i := 0; i < len(finalOutput); i += groupSize {
+		if i+groupSize < len(finalOutput) {
+			groupedOutput.WriteString(finalOutput[i:i+groupSize] + " ")
+		} else {
+			groupedOutput.WriteString(finalOutput[i:])
+		}
+		counter++
+		groupCounter++
+
+		// Check if we reached the line size
+		if lineSize > 0 && groupCounter >= lineSize && i+groupSize < len(finalOutput) {
+			groupedOutput.WriteString("\n")
+			groupCounter = 0
 		}
-		return strings.TrimSpace(groupedOutput.String())
 	}
 
-	return finalOutput
+	return strings.TrimSpace(groupedOutput.String())
 }
 
 func main() {
 	// Define command-line flags
 	shift := flag.Int("s", 0, "Shift amount for the cipher")
 	groupSize := flag.Int("g", 0, "Group size for output formatting")
+	lineSize := flag.Int("l", 0, "Line size by number of groups")
 	flag.Parse()
 
 	// Read input from stdin
@@ -82,7 +91,7 @@ func main() {
 	}
 
 	// Format the output
-	formattedOutput := formatOutput(encoded, *groupSize)
+	formattedOutput := formatOutput(encoded, *groupSize, *lineSize)
 	fmt.Println(formattedOutput)
 }