From: Sean Middleditch <elanthis@...>
Date: 2002-04-19T22:13:06+09:00
Subject: Re: Experimental language jtpl

On Fri, 2002-04-19 at 08:28, Jakub Travnik wrote:
> > now program that uses continuations:
> > ----------------------
> > var f,cont,counter; -- variable declaration
> > 
> > f={
> >         cont=return;  -- set cont to continuation of this function
> >                       -- return is like ordinary variable it can be read 
>                          -- or written
> >         return(100);  -- return 100
> > };
> > 
> > counter=0;            -- set counter to zero
> > writenum(10+f()+1000);-- call b and write result of addition
> > 
> > counter=counter+1;    -- increase counter
> > 
> > if(counter<4)         -- loop limited number of times
> >         cont(d);      -- reuse continuation in cont,
> 
> line above should be:
> 
>            cont(counter);  -- reuse continuation in cont,
>                         -- this will restart computation inside
>                         -- addition/writenum above
> > end;
> > ----------------------
> > source above will print numbers: 1110, 1011, 1012, 1013
> > 
> > 
> > I hope this helps.
> > 

I might just be an idiot (might? everyone asks), but I don't exactly see
what the advantage of this is, or even how it's working.  ^,^  How does
the continuation know about the 
writenum(10+f()+1000)
To continue printing the 1110... series?  Also, what is the variable
passed to cont doing, since I don't see use of an argument or a variable
anywhere in the above expression or the f() function?

> 
> 
> Happy hacking,
> 
> Jakub Travnik
> jabber://jtra@jabber.com
>