🚀 go-pugleaf

I'd like to use stretchable glue to do funky kinds of centering.
E.g. I'd like to have

space b1 space space b2 space

where all spaces are equal length, b1 and b2 are boxes.

I believe \hfill will do this.  I was not able to use it effectively.

My simple effort is here:

\documentstyle{article}
\begin{document}

We hbox together two tabulars:

\hbox{
  \hfill
  \begin{tabular}{c|c}
  \hline
  This is & the left table \\
  \hline
  \end{tabular}
  \hfill \hfill
  \begin{tabular}{|l|r|}
  \hline
  title column1 & title column2 \\
  \hline
  1.1 & 1.2 \\
  2.1 & 2.2 \\
      &     \\
  \hline
  \end{tabular}
  \hfill
}
\end{document}

Thanks,

        -ans.