On Sun, Dec 2, 2012 at 11:51 AM, Ralph Corderoy <ra...@inputplus.co.uk> wrote:
> The table split across its pages 14/15 describing .ns and .rs both have
> `space' as the second field, Initial value, stating space mode is the
> default. Empirically, it seems correct.
>
> $ nroff <<<foo | uniq -c
> 1 foo
> 65
> $ printf '.sp 3.14i\nfoo\n' | nroff | uniq -c
> 19
> 1 foo
> 46
> $
More generally, while plain groff starts in space mode, some macro
packages start in no-space mode.
$ nroff -me <<<foo | uniq -c
7
1 foo
58
$ printf '.sp 20\nfoo\n' | nroff -me | uniq -c
7
1 foo
58
$ nroff -ms <<<foo | uniq -c
6
1 foo
59
$ printf '.sp 20\nfoo\n' | nroff -ms | uniq -c
6
1 foo
59
$ nroff -mom <<<foo | uniq -c
1
1 foo
64
$ printf '.sp 20\nfoo\n' | nroff -mom | uniq -c
21
1 foo
44
$
