Instead of treating all key presses as Shifted, it now normalises the
user-input.
Also now treats < as <lt>
Behaviour:
(:map <C-S-a> == :map <C-S-A>) != (:map <C-a> == :map <C-A>)
:map <C-S-@> is meaningless (though no error is produced) c.f. vim
:map <C-S-2> is meaningless (though no error is produced) c.f. vim
Internally, commands are stored with no shift modifiers for alphabetic
characters, i.e. (:map <C-S-a> creates the mapping <C-A>) as in vim.
<CapsLock> <C-a> will cause the <C-A> mapping (mapped with <C-S-a> to be
triggered).
There still seems to be a bug with :map <Space> and :map <CR>
41aed95c05
