select item from list in modify-current-argument?

[Marc Weber <marco-oweber@xxxxxx>]

I have my own tool for selecting paths
(github.com/MarcWeber/path-selector).

I'd like to use it within ZSH.

I came up with this:
http://dpaste.com/550269/

(You can replace line 78 by 79)

select-one first uses echo to show the alternatives, then read to get
the item index from the user.

However because echo shows many lines the code copied from
modify-current-argument get's confused.
ctl-l redraws the current line but drops some history.
zle -R does not help

Is there an even better way to implement select-one?

Pointing me to sample code will be enough.

Marc Weber