Re: [stack] Re: Joy noob checking in!

On 11/05/10 11:34, John Cowan wrote:
> In Joy, lists and closures (not that there's anything
> to close over) are the same thing, so you can create functions
> using list manipulation and then execute them. As far as I know,
> this isn't possible in Cat or Factor.

Factor has functions for manipulating 'quotations' and converting 
sequences of words to quotations. For example:

{ "Hello" print } >quotation call

In this example { ... } is a sequence containing the string "Hello" and 
the word (Factor's terminology for function) 'print'.

 >quotation converts this to a quotation (Factor's terminology for an 
anonymous function) and then calls it.

You can also curry quotations, compose them, etc:

"Hello " [ print ] curry call
[ "Hello " ] [ print ] compose call

Chris.
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