Re: [Groff] Hey, our headman is in the news!

[Tadziu Hoffmann]

> > I believe TeX uses a similar concept (i.e., storing
> > ready-formatted text), only they call it "boxes", not
> > "diversions", and TeX has an optimizer to decide where to
> > pagebreak, not just a simple vertical-position trap.
> 
> Well, in TeX I can always `\unhbox' or `\unvbox' a box
> to get back the original contents, unmodified.

Umm, depends on what you mean by "original contents".
Unvboxing a formatted paragraph will put the list of the
individual lines of the paragraph into the current list,
but it won't undo, for example, any hyphenation that has
occurred as a result of formatting the original text.