Re: [Groff] <OK> Backgound image slightly higher on page one

[Ralph Corderoy]

Hi Mike,

> Groff starts off in  no-space mode until either the  .rs command or
> some text is output.  no-space mode means any request for vertical
> spacing is ignored.
> 
> I cannot find where this is explained in the documentation.
>       Computing Science Technical Report No. 54
>              Troff User's Manual
> hints at it, but ...

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 
    $

Cheers, Ralph.