[texhax] One (more) question about \halign

[Rodolfo Medina]

Rodolfo Medina <rodolfo.medina at gmail.com> writes:

> Am 27.01.10 16:55, schrieb Rodolfo Medina:
>
>>> In plain TeX, I have the following problem:
>>>
>>> I have the following alignment (for a table of contents):
>>>
>>>
>>> \halign to \hsize{%
>>>          \rm\rlap{1.2}\ \ \ \ \ \ \
>>>          \vbox{\parindent=0pt\hsize=105mm\hangindent 0em\strut%
>>>                #\hfill\strut}%
>>>        \tabskip=0cm plus20cm minus20cm&\hfil#\tabskip=0pt\cr
>>>        bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla
>>>        bla bla bla bla bla bla bla bla bla bla bla bla bla&bnbnbnbnb\cr}
>>>
>>>
>>> Now, I want that, when the first argument is very long and continues over a
>>> second line (as in the above example), then
>>>
>>>         \rm\rlap{1.2}\ \ \ \ \ \ \
>>>
>>> is put on the first line (in the above example it is put on the second line,
>>> instead).
>
>
>
> Wolfgang Schuster <schuster.wolfgang at googlemail.com> writes:
>
>> Replace \vbox with \vtop.
>
>
>
> Thanks: but maybe I should have said that I want the second argument instead
> to stay on the second line, where it is now; whereas what you suggest would
> move it on the first line.


In other words, I want

         \rm\rlap{1.2}\ \ \ \ \ \ \

to be on the first line, and `bnbnbnbnb' (the second alignment argument) on the
second line.  Is that possible, and with what trick?

Rodolfo