On Sat, 8 Jul 2017 12:26:59 +0200 Ulrich Mueller <u...@gentoo.org> wrote:
> | * An any-of group (||) evaluates to true if at least one of the > | items in it evaluates to true. > | * An exactly-one-of group (^^) evaluates to true if exactly one of > | the items in it evaluates to true, and all the remaining items > | evaluate to false. > | * An at-most-one-of group (??) evaluates to true if at most one of > | the items in it evaluates to true. > > It should be added that any empty group (|| or ^^ or ??) evalutates to > true, because that's what PMS specifies: > https://projects.gentoo.org/pms/6/pms.html#x1-780008.2 A bit OT, but that is *definitely* counter intuitive. What's the rationale and usecase behind this ?
