Handle conversion menu input.

src/displays/app_exit.go

@@ -0,0 +1,7 @@
+package displays
+
+import "os"
+
+func AppExit() {
+	os.Exit(0)
+}

src/services/celsius/conversion.go

@@ -9,8 +9,10 @@ import (
 func Conversion() {
 	var celsiusInput float64
 	var celsiusInputError bool = false
+	var conversionMenuInput int
+	var backToMainMenu bool = false
 
-	for {
+	for backToMainMenu == false {
 		// Clear the screen.
 		displays.ClearScreen()
 		displays.AddNewline()
@@ -43,6 +45,23 @@ func Conversion() {
 		fmt.Print(displays.Tab, "   ", "Rankine (°R)", displays.Tab, displays.Tab, ": ", convertToRankine(celsiusInput))
 		displays.AddNewline()
 		displays.AddNewline()
-		break
+
+		// Ask if user wants to retry or go back to main menu.
+		fmt.Print(displays.Tab, "   ", displays.ColorBlue, "[1-Retry, 2-Back, Any-Exit]", displays.ColorReset, displays.Tab, ": ")
+		_, err = fmt.Scan(&conversionMenuInput)
+
+		if err != nil {
+			displays.ClearScreen()
+			break
+		}
+
+		if conversionMenuInput == 1 {
+			continue
+		} else if conversionMenuInput == 2 {
+			backToMainMenu = true
+		} else {
+			displays.ClearScreen()
+			displays.AppExit()
+		}
 	}
 }