PR# 19754 Keyboard events do not distinguish between '#' and '£'

Problem Report Summary
Submitter: HowardThomsonSurrey
Category: EiffelVision
Priority: Low
Date: 2021/05/16
Class: Bug
Severity: Non-critical
Number: 19754
Release: 20.11
Confidential: No
Status: Open
Responsible:
Environment: linux Ubuntu 18.04.5 LTS (Bionic Beaver) 64-bit
Synopsis: Keyboard events do not distinguish between '#' and '£'

Description
For my British (!) Linux system running Ubuntu Linux instances of EV_KEY do not distinguish between the key codes for the the keys
that have key caps for '#' and '£'.
The key on my keyboard that has '#' and '~' generates keycode 4 and the text "3" without the Shift key, keycode 56 and text "3" with Shift !!!
The key that has '3' and '£' on it  generates keycode 4 and the text "3" without the Shift key, and fails to generate and event at all with Shift !!
The key that has '`' [back-quote] and '¬' on it generates keycode 56 without shift with text '`', and fails to generate an event with Shift ...
The key that has '2' and ' " ' on it generates key code 3 and text "2" without shitf, and keycode 55 text '@' with shift

I am not entirely surprised at some level of confusion in generating '@' '#' '£' and '"' 
I am surprised and frustrated that not all keys, with no-Shift / Shift  on my keyboard generate a key event !
To Reproduce
I will attempt to provide a minimal EiffelVision program to demonstrate this issue.

I don't know how one can inject all possible keycodes into the GTK system to elicit EV_KEY responses, so my demo will rely on actual key presses ...
Problem Report Interactions
From:HowardThomsonSurrey    Date:2021/05/16    Status: Open    Download   
It would seem that key_press_string_actions does produce a string that correctly corresponds to key caps ...

From:HowardThomsonSurrey    Date:2021/05/16    Status: Open    Download   
#   Key event: 4 : 3
~   Key event: 56 : ` 

'   Key event: 55 : ' 
@   Key event: 3 : 2 

3   Key event: 4 : 3 
£   No event !!!

2   Key event: 3 : 2 
"   Key event: 55 : ' 

`   Key event: 56 : `
¬   No event !!!

The above are the EV_KEY keyboard events for which I have issues.
The leftmost character is the keycap on my physical keyboard
Followed by EV_KEY.code.out [if the event is generated !]
Lastly the EV_KEY.text ...