[alicebot-archcomm] <set> and unsetting them

[Dr. Rich Wallace]

I would say, set to the empty string.

> The <set> in the aiml specification does not indicate what you should do
> whenever you hit an empty <set>.  Should that unset the variable?
>
> For example, <set name="hello">some value</set>
>
> <set name="hello"></set>  <!-- Unsets the value -->
>
>
> Should it unset the value entirely or should it set the value to an empty
> string?  I saw some earlier discussions of this by searching the arch
> committee mailing lists.  It'd be nice if it was just put into the
> specification how interpreter writers should write it.
>
>
>
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