Your suspicions are right, it is completely unnecessary.
pat665 wrote:
> Hi rebollers,
>
> I am coming again with a question posted on November the 23th 2001. At the
> time, I thought I had understood Ladislav's answer, but the truth is I am
> not so sure.
>
> All began while reading Ladislav's contexts.html...
>
> "There are Words that do not have the ability to refer to Rebol values. We
> can call them undefined Words. [ ...] This function can be used to find out,
> if a Word is undefined: "
>
> undefined?: func [
> {determines, if a word is undefined}
> word [any-word!]
> ] [
> error? try [error? get/any :word]
> ]
>
> My question was "why use error? two times?". In my eyes, a more simple
> version of the function could be :
>
> u-def?: func [
> {determines, if a word is undefined}
> word [any-word!]
> ] [
> error? try [get/any :word]
> ]
>
> We can test these two functions whith Ladislav's own example of an undefined
> word.
>
> a-word: first first rebol/words ;== end!
>
> >> undefined? a-word
> == true
> >> u-def? a-word
> == true
>
> >> undefined? 'print
> == false
> >> u-def? 'print
> == false
>
> I am not pretending I am right, because I must be wrong! but I deeply need
> to understand where and why !
>
> Patrick
>
> PS: this message has been posted twice because I realized that I did not use
> the right "from" (the one who is listed) for the first one. You should
> receive this one first if I am not wrong (again).
>
>
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