Re: [Groff] Weird problem; .ig is not ignored

[Keith MARSHALL]

> If I typeset this with 'groff -ms', I get the example text
> with no left margin.  It seems at least some of the .nr or
> .po requests are executed even though they are inside
> '.ig' ... '..'.
>
> If I remove the .ig section (and its contents), I get a margin
> which seems to be the -ms default and all is well.
>
> Or have I misunderstood the .ig request completely?

I don't see any unexpected behaviour, if I format your example with
nroff -ms.

`.nr LL 100n' does not assign any new value to \n(LL, neither does
`.nr PO .7i' to \n(PO, nor `.nr PI 3n' to \n(PI.  I *do* see a
"number register `PO' not defined" warning, when `.po \n(POu' is
read, but as I interpret `groff info' for the `.ig' request, that
is correct behaviour.

Best regards,
Keith.