Guile maintainer Andy Wingo re-examines
its suitability as the official GNU extension language
, showing off a
number of useful features on the way. "Delimited continuations let a user extend their code with novel, expressive control structures that compose well with existing code.
I'm going to give another extended example. I realize that there is a risk
of losing you in the details, dear reader, but the things to keep in mind
are: (1) most other programming languages don't let you do what I'm about
to show you; and (2) this has seriously interesting practical
" (The article is a few months old, but we had not encountered it previously).
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