Re: [Groff] Horizontal positioning, .nr vs \R

[Larry Kollar]

On Mar 24, 2010, at 1:57 AM, Werner LEMBERG wrote:

> > This line *does* work:
> >
> >  .   nop \\$*\h'0'\R'toc:horiz \\n[.k]'
> >
> > In other words, forcing a zero horizontal motion flushes the single
> > word out and sets the .k register properly.  Is this expected
> > behavior, and if so, is \h'0' the correct way to flush a partial
> > line?
>
> I can't repeat that.  Put the following into a file `R':
>
>   .de xxx
>   .  nop \\$*\h'0'\R':a \\n[.k]'
>   .  tm :a == \\n[:a]
>   ..
>   .
>   .xxx aaa
>   .
>   .br
>   .
>   .de yyy
>   aaa\h'0'\R':b \\n[.k]'
>   .  tm :b == \\n[:b]
>   ..
>   .
>   .yyy
>   .
>   .br
>   .
>   aaa\R':c \n[.k]'
>   .tm :c == \n[:c]
>   .
>   .br
>
> Saying `troff R > /dev/null' gives
>
>   :a == 13320
>   :b == 13320
>   :c == 13320
>
> In other words, I get the same results either using or not using a
> macro, and with or without \h'0'.
>
> You have to provide a small stand-alone test case so that we can find
> out what's really going on.

Werner,
Your example isn't long enough. Everything works fine until the entry  
takes up more than one line. In your example, replace the argument  
to .xxx with something that will break to the next line.

        Larry