Hello Rob,
.. | o: not fanout | l: lookup fs _ f1.2 detail | cons \ l: \ o: | unique fs _ f1 first | l:
I could have written the "joincont" pipeline, eventually, but never the "not fanout" one. I had to use pipedemo, read and re-read the "not" and "fanout" helps to understand it.
I love this "not fanout". Thank you very much for this delicious example of pipethink. Michaël
