Marc Nieper-Wißkirchen scripsit:

> In the code of Rapid Scheme, immutable maps are used as the main
> data structure. Thus I am volunteering to help to turn the
> "immutable-maps" proposal on the WG 2 site together with its
> author(s) into a proper SRFI. I have a partial implementation that
> is backed up by RB trees.

Please do!  If you can work with Shiro and/or his code, so much the
better.  That way we can turn maps (and hopefully also sets/bags) into
SRFIs and get them into one of the future editions, if the voters decide
in their favor.

--
weirdo:    When is R7RS coming out?
Riastradh: As soon as the top is a beautiful golden brown and if you
stick a toothpick in it, the toothpick comes out dry.