Hello Robin2, vector0.
Of course I do not take your reply as a criticism, don't get me wrong 
. I completely agree that the code should be reviewed.
Regarding the message I have deleted, I also understand it, but I did not find the way to remove only the attached file without deleting the message. Could it be due to Chrome, the browser I sent the post from?
Regarding the github, I have an account. Now it is a bit late, but as soon as I can, I will upload my modifications to GitHub.
Thanks for your feedback!