[Oberon] Obtaining the title of a marked viewer.

[eas lab]

More interestingly, can we put in a ET.Do <Script>:

Directory <string>
<ThatViewer> Process [eg. search/grep, sort ...]
<THAT, ThatViwer> eg. count.
That's what we mean by FunctionalProgramming/Piping.
 And can you <roll-up/kill> the used viewers, as you step forward.

As previously pointed out, we already do piping:
a sheet-of-paper is handed to stage N, who transforms that input
to a new sheet-of-paper for stage N+1.

See the isomorphism?

== Chris Glur.