The manual says:
"Delimited continuation for Prolog is described in Schrijvers et al., 2013 (preprint PDF)."
- The link for "Schrijvers et al., 2013" just leads to the bibliography page where one is stranded because there are no live links to continue.
- The link for "preprint PDF" leads to a preprint of the ISO Standardization effort for the C language. Shurely some mistake?
The correct link to the paper is:
- Delimited continuations for Prolog: https://www.swi-prolog.org/download/publications/iclp2013.pdf
The PDF says it has been written in 2003, but it has really been written in 2013. It's a preprint. It has been published in Theory and Practice of Logic Programming in 2013.
I like this one more
"Delimited continuations in Prolog: semantics, use, and implementation in the WAM"
- Tom Schrijvers (UGent), Bart Demoen and Benoit Desouter (UGent)
- March 13, 2013
Technical Report. This is an excellent resource.
A lot of notes on Delimited Continuations
Right here, including example code.