Re: [stack] Re: unary functions from X to Y?

Chris Double <[email protected]>
Newsgroups gmane.comp.lang.concatenative
Message-ID <[email protected]>
On Fri, Mar 6, 2009 at 8:02 PM, John Nowak <[email protected]> wrote:
> I was not aware of 'abort'; you are certainly right it seems. As I
> know very little about XY, I'll have to take your word for it
> regarding '=>'.

'=>' is a it like >r in factor except it doesn't use a separate retain
stack. It takes 1 item off the stack and places it at the tail of the
queue. If it's not popped off later with '<=' it gets executed when
the queue reaches that point.

> I suppose I should actually use XY one of these days... at least
> before I make any more claims about it. Until then, please consider my
> proposal void.

I have mostly working JS implementation:

http://tech.groups.yahoo.com/group/concatenative/message/4305

It doesn't do the projection thing mentioned above however.

Chris.
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