[9fans] plan9 ms .if h test

[pmarin.mail@gmail.com (pmarin)]

Never mind: ".if c" is only using for built-ins.

On Wed, Mar 30, 2011 at 6:55 PM, pmarin <pmarin.mail at gmail.com> wrote:
> 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.sykora at 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
>>
>>
>