Re: [stack] Is this language concatenative?

On 3/5/07 1:22 AM, "John Cowan" <[email protected]> wrote:

> Michael Nedzelsky scripsit:
> 
>> > I think you mean the following:
>> >        "a" intern "b" intern "c" intern [] cons cons cons
> 
> Yes, of course.  That comes of posting code late at night....
> 
>> > But if any literal list can be constructed using only string literals,
>> > intern, [] and cons, then the subset of Floy in which the only quotation
>> > is empty list is already sufficient. Am I missing anything here?
> 
> Only a historical fact: that it was I who added intern to Joy's
> primitive words when modifying the Joy interpreter to add
> general gc, floating-point support, and files, and therefore
> Manfred's papers don't reflect it.

Actually I discussed Floy after your modifications of Joy. In all modesty,
at that time I did not really grasp the possible uses of the intern
operator. After your recent post I did try out intern, with some surprises:

³1² intern ³2² intern ³3² intern ³4² intern [] cons cons cons cons
produces a nice looking list of what seem to be integers.
But now try: [dup*] map

³Anna² intern ³Bob Charles² intern ³Donald²  intern [] cons cons cons
produces a nice looking list of what seem to be four names.
But now try: reverse

  - Manfred



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