Hi, Larry Kollar wrote: > It's defined in groff(7), and in sec. 5.3 of the texinfo doc. Logical > OR is a colon: > > .if \n[EULA]=1:\n[EULA]=3 \{\ > > It would have been interesting to ask Joe O why a colon instead of a > pipe here. Anyway, I use constructs like this all the time in my docs.
Perhaps because a | was already being used for `.sp |1i'? Or because | didn't suggest logical-or yet. troff pre-dates C by quite a while. Cheers, Ralph.