Auto-completion based on buffer

[j4hangir]

Thanks for the ongoing impressive job, the terminal emulator is becoming better and better every day 👍

The only thing I miss as I used to work on my Mac with iTerm is its smart auto-completion feature, one could press a key and a drop-down box would open with suggestions from the buffer, say the line above:

>>>
>>> name=root
>>> echo $n<HOTKEY>

There, name would be one of the top suggestions (pre-selected, similar to autocompletion in Fish)

I think implementing this wouldn't be that difficult, given that the buffer is readily available and it'd be merely a matter of ordering the suggestions based on their distance to the cursor + LD (Levenshtein distance). On the plus side, it's exceedingly a useful feature, reducing the strain on fingers to move and copy paste things around.

[sedwards2009]

Released in v0.58.0.