[texhax] leaders protruding a fixed width from end of paragraph?

[Stan]

On Thu, 17 Mar 2011 01:02:53 -0500, Paul Isambert <zappathustra at free.fr>  
wrote:

> Selon Stan<texforeverything at att.net>:
>
>
>> >  Is there a way to fill the last line of a paragraph with leaders that
>> >  extend a fixed width beyond the right edge of the paragraph, with
>> >  right-aligned numbers on the right?  I'm trying to get something  
>> like this:
>> >
>> >  Here's a sentence..................2
>> >  Here's a sentence on two
>> >  lines..............................5
>> >  Here's the last sentence
>> >  also on two lines.................11
>> >
>> >  I tried using \leaders twice, once with \hfill to get to the edge of  
>> the
>> >  paragraph, and once with a fixed \hskip.  That did not align the  
>> numbers
>> >  correctly, but that should not be hard to fix.  The main problem was  
>> that
>> >  I could not get the \leaders to meet seamlessly.
> Use \leaders only once, but set \parfillskip to a negative value  
> beforehand, as
> in:
>
> \parfillskip=-10em
> \setbox0=\hbox{.}
>
> ... end of paragraph.\leaders\copy0\hfil<number>

Thanks.  That works perfectly.

>
>> >  I hope that this can be done somehow without modifying the output
>> >  routine.  Is that possible?
> This has indeed nothing to do with the output routine.


I was making this way more complicated than I need to.  I was thinking  
that I might need to know how much text ends up on the last line after the  
paragraph is split into lines.


Stan