You mean you want to finish the finger-tree based version?
I have a list-based implementation for Gauche and can make it portable r7rs
if you want it.

On Fri, May 13, 2016 at 4:05 PM, John Cowan <xxxxxx@mercury.ccil.org> wrote:
Arthur A. Gleckler scripsit:

> This is a reminder that SRFI 134, Immutable Deques, has been under public
> discussion for over 150 days.  (It was first published on 2015/12/9.)  A
> new draft was published four days ago, which is a good sign.  Feedback and
> new drafts are welcome!

I keep hoping to get enough time to write the implementation: not that
it's so difficult, I just haven't had the time.  Editing the draft is
easy by comparison.

--
John Cowan          http://www.ccil.org/~cowan        xxxxxx@ccil.org
Original line from The Warrior's Apprentice by Lois McMaster Bujold:
"Only on Barrayar would pulling a loaded needler start a stampede toward one."
English-to-Russian-to-English mangling thereof: "Only on Barrayar you risk to
lose support instead of finding it when you threat with the charged weapon."