I searched where the register h is defined: % 9 grep -n '.nr h ' tmac.*
tmac.cs:103: .nr h 6 tmac.cs:477: . nr h \\ne \} tmac.mcs:208: .nr h 6 tmac.mcs:840: .nr h \\ne where h has the same meaning: '''\" h - cover sheet basic distribution length Both tmac.cs and tmac.mcs load tmac.s in their inicialization so probably h only have sense when tmac.cs or tmac.mcs are used. I think that if you are only using the ms macros then h is not important because is not defined. Cheers. pmarin. On Wed, Mar 30, 2011 at 4:21 PM, Rudolf Sykora <rudolf.syk...@gmail.com> wrote: > Hello 9fans, > > in the troff ms-definition file (in plan 9, p9p) > /sys/lib/tmac/tmac.s > I can find this structures > .if h ... > or > .ie h ... > > I really can't find what this test means (the 'h'), I only know the > o,e,t,n built-ins. > Please, can anybody tell? > > [ > In p9p, it's e.g. on > /opt/plan9/tmac/tmac.s:329 you have > .ie h .ll \\n(LLu > .el \{\ > ... > ] > > Thank you very much! > Ruda > >