How to make ESC to cancel current completion

[Sébastien Pierre <sebastien.pierre@xxxxxxxxx>]

Hi all,

So when zsh completes something, the cursor moves to the end of the
completed word (which is the expected behaviour). However, I often would
like to type <ESC> to undo the current completion and go back to the state
where I initially did my completion.

Here is what I am mean:

% ls <TAB>        # I hit tab once to complete ls
% ls a/<TAB>      # zsh completes to first matching file/dir, I hit tab to
iterate
% ls b/<TAB>      # I hit tab to iterate again
% ls c/<ESC>      # I hit ESC to go back to where I was before hitting tab
in the first place
% ls              # typing ESC undo-ed the last 'c/' completion

is there an option to make zsh behave like this ?

Thanks !

 -- Sébastien