Ariel Don 8230bf8944 LibGUI: Add Ctrl-H to insert mode ...

In Vim, Ctrl-H is effectively equivalent to backspace in insert mode, as
it deletes the previous character.

This commit implements method delete_previous_char() to TextEditor.
delete_char() already exists in EditingEngine, but it deletes the
next character rather than the previous. delete_previous_char() is then
called from within VimEditingEngine.

2021-07-20 03:22:28 +02:00

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