[docbook-tc] parent elements of <arg>

Hi,

This may be a really stupid question, but I'm trying to figure out why an
<option> element can be put into <userinput>, but not an <arg> element.
Since user input is often the specific rendition of a command, I would
think the basic elements of a cmdsynopsis could be used there.

Given the amount of thought this committee has typically put into crafting
the element definitions, it seems as though there must have been a good
reason for doing this. But I can't figure it out now, and not having it
available is problematical for me.

Any ideas?


Nancy

________________________
Nancy (Paisner) Harrison
Rational Software
Lexington  MA