I've just ported SRFI-111: Boxes, and would like so submit it for publication.
Its documentation is here: [1] Its release-info is here: [2] test-new-egg has given it a clean bill of health. Although there was a "box" egg for Chicken 4, which was listed on the "Supported Standards" page as SRFI-111, I chose not to port it to Chicken 5 because it used different names for its procedures than were used in SRFI-111, and for compatibility reasons I wanted Chicken 5 to have completely compliant SRFI-111 support. So, this SRFI-111 egg is ported directly from the SRFI-111 standard, without using any code from the "box" egg, except for some tests. Also, I should note that the "box" egg is actually much more feature rich than SRFI-111, and is a worthy candidate for porting to Chicken 5 anyway, to give Chicken 5 even more box-related capability. Finally, on #chicken I asked klovett, the author of the original Chicken 4 "box" egg, about porting SRFI-111 and he said it was ok. [1] - http://wiki.call-cc.org/eggref/5/srfi-111 [2] - https://github.com/diamond-lizard/srfi-111/raw/main/release-info