I would like to create a editor that is similiar to
VB code editor. I also have this config file :
So, when I type StartA with a period, like StartA., then
I will see a square box will a list of Apple, Angle to
let me select. When I select Angle, and hit ENTER or use
mouse click somewhere on the editor, then Angle will
be appended to StartA., just like StartA.Angle.
If I type StartD., I should not see square box, because
StartD does not appear in the config file.
A very simple exmaple is welcome. If this is a complicated
program, please give me detial for how to do it. Thanks !