Using Vim on macOS, I had this in my .vimrc:
cmap <esc>b <s-left>
cmap <esc>f <s-right>
which allowed me to use <alt>-arrows in command mode to jump
between words. It worked, but it caused a 'timeout' delay
when I was pressing <esc> to exit command mode.
I have recently discovered that I can do this instead:
execute "set <s-left>=\eb"
execute "set <s-right>=\ef"
execute "cmap \eb <s-left>"
execute "cmap \ef <s-right>"
This works exactly the same, and <esc> does not cause any delay
(I have ttimeoutlen=10 if that matters). Great!
So, here are my questions:
1) What do the commands above do exactly?
2) Where is ":set <some-key>=" explained in the manual?
3) Is it possible to rewrite the commands without :execute?
4) Is there any drawback or side effect I should be aware of?
Thanks,
Life.
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