Exit procedure and/or script

Dear all,

I have a script that, the first time is used,asks the user to enter the directory where he wants to save his files.This path is stored into a config file (config.txt).

Next time the script is called, in first place it will check if a config file exists, if it doesn't it creates a new one, otherwise will use the one that is store on the hdd.

However, if the user wants to change the path where his plots are going to be saved, the user can call the menu to enter a new path and,as a consequence, the old config file will be delete and a new one written. The problem arises if the user invokes the menu and then hits the cancel button. Despite the cancel button has been pressed the file will be erased !

So I would like to exit the procedure and/or the script whenever the cancel button is pressed.

The user menu is called automatically if there is no config file, or if the user wants to open it., pressing "j".

;==============================================================================
;======================  Function called when "j" is pressed  =================
;==============================================================================
procedure(displayMenu()
      let((ConfigFileLocation)
        ; Default Config File location
        ConfigFileLocation="~/config.txt"

        ; Create form
        createMainForm()
        
        ; Delete config.txt
        deleteFile(ConfigFileLocation) ; deletes de config file
        printf("File Deleted !!")        
        ; Save data to config.txt
        save2config(ConfigFileLocation) ;saves a new config file

      )
)      

;==============================================================================
;=====================  Actions to take when cancel is pressed ================
;==============================================================================
procedure(testCancel()
  dispMessage("Cancel button pressed")
  println("Cancel button: Pressed !!")
 
)

Thanks in advance.

Best regards,

Pedro