zsh: how to make tab completion need no space to next word after cursor?

Question

There is an annoying difference between zsh and bash tab completion:

Imagine you write some command and want to add something at the beginning of the line:

$ compute --some --stuff

then you jump to the beginning of the line and line and start to write sudo (bad example - just to demonstrate)

$ sudcompute --some --stuff
    ^ <---cursor

bash would let you complete sud to sudo while zsh would try to complete sudcompute.

So in this case you would have to write a space, jump back one character and try to tab-complete.

In case you're still used to bash you would try to tab-complete after sud and render the command you started to write into something utterly useless.

So for short: is there an option to let zsh complete the phrase to the left of the cursor regardless whether or not it's terminated by a space?

Answer 1

Just looked around in my .zshrc file and I think this is what you want:

bindkey '^i' expand-or-complete-prefix

Where ^i is <Ctrl-I> which is usually tab.