ref: a39ae178fcc4387fe63efea4d15b34d52f4a13de
dir: /man/6/INDEX/
ascii utf attrdb attrdb audio audio auth auth colour colour dis dis font font image image intro 0intro json json keyboard keyboard keys keys keytext keytext login login man man namespace namespace ndb ndb plumbing plumbing proto proto regex regexp regexp regexp rune utf sbl sbl scancode scancode sexprs sexprs subfont font translate translate ubfa ubfa unicode utf users users utf utf