On Sun, Nov 8, 2015 at 4:14 AM, Shiro Kawai <xxxxxx@gmail.com> wrote:

Revision; mention the base case of generator-every explicitly.

generator-every pred gen

   Applies pred on each item from generator gen.  As soon as it yields #f, the procedure

   returns #f without consuming the rest of gen.  If gen is exhausted, the last value

   returned from pred is returned.  As a base case, if gen doesn't yield any items,

   #t is returned.

John has sent me an overlapping batch of changes (actually, revised files) separately.  Let me put those in place and then the two of you can decide what to do about the pull request.