World: r3wp

Yes, I like LOOP and REPEAT! :-)

No, R2 doesn't use registers. The context assigned to the function 
is reused, with the value block switched out on recursion. The original 
(non-recursive) value block is left alone when the function returns, 
and set to nones on function entry. This is where the memory leaks 
come from: unintentionally persistent references to local variables. 
R2 actually does have a stack (it's a block), but it is used differently.


R3 just has a second context type that does stack-indirect word dereferencing. 
When the function starts a block of values is pushed on the task-local 
stack and the references to those values do an additional indirection 
to get the stack frame before getting the values - this is why function! 
word dereferencing is 28% slower than object! or closure! word dereferencing.


R2 has two context types: object! and system/words (an expandable 
object!). R3 also has two context types: it doesn't have R2-style 
object! contexts - all are expandable like system/words - but it 
does add the stack-indirect type.

And a third context type is needed for microthreads?

Brian, R3 is using stdcall on windows machines right?

John, I would prefer micro-processes and messaging (like Erlang), 
but there is no third type yet.

Paul, I have no idea, but REBOL function calling doesn't use stdcall 
- it has its own mechanism (to support gc stack frames).

Native code can call REBOL functions, but I don't know how it does 
so, just that it isn't a standard function call.

>> --1:23
== 0:37

Lexical problem?

>> +1:-23 
== 0:37
It's parsed as - ( (-1) : (23) )

not too obvious, though

Interesting, thanks!

>> 1:00:-10
== 1:00

Sorry, but it's a known bug which is already fixed in R3:
>> 1:00:-10
** Syntax error: Invalid "time" -- "1:00:-10"
** Near: (line 1) 1:00:-10

** Note: use WHY? for more about this error

imho the first one should be reported in CC and fixed.

Yeah, --1:23 should be of type url!, shouldn't it?

Geomol, so you say we should NEVER use functions? Inlive everything? 
One single block of code?

*Inline

Of course not. I just try to figure out, what ALSO is, and how I 
can use it. Some of my comments are to figure out, if it's worth 
it.

And I'm concerned about complexity (like Carl blogged about lately). 
I don't want REBOL to go down the complex road. There are so many 
examples, where that will lead to. To me, one word less can be a 
good thing, but it depends, if it's really needed.

what is complex is your aim :-)

I'm a tool maker. I want my tools to be simple and functionel.

Who doesn't want ?

Eh, most of the developers in the world, it seems? ;-)

Note that the UNC with core works perfect.  Better than Windoze console 
on a Windoze server!  Kudo's to Carl for integrating repulsive technology 
with a beautiful console!  Windows  cmd does not let you cd to the 
UNC drive!

...but I can change-dir to the UNC drive inside REBOL/Core's console.

unc root... wow!

So, question.  I know rebol has difference, intersect, and union 
- but is there a subtract for sets built in?

I know "difference a intersect a b" works, just wondering, though..

>> help exclude
USAGE:
    EXCLUDE set1 set2 /case /skip size

DESCRIPTION:
     Return the first set less the second set.
     EXCLUDE is a native value.

ARGUMENTS:
     set1 -- First data set (Type: series bitset)
     set2 -- Second data set (Type: series bitset)

REFINEMENTS:
     /case -- Uses case-sensitive comparison.
     /skip -- Treat the series as records of fixed size
         size -- (Type: integer)

Thankies, never saw the name before

:-) rebol stays fresh for YEARS.  I've been using it since the betas 
for first view, and I still discover new things now and then.  :-)

(sorry v1 core betas :-)

now where did I put my Lava alphas ... ;-)

I wish I knew the best way to install a Core script as a "service" 
(service in the Windoze sense so it has a specific login rights, 
which map up to a UNC share rights)

http://softinnov.org/rebol/nt-services.shtml

Ask, and you shall receive.  Knock and the door will be opened.  
Thanks, Paul!

Your welcome - thank Doc for the work on that.

I was going to thank God, but Doc will do.

Thanks them both!

I wrote: " --1:23 should be of type url!, shouldn't it?"

Actually, it's not a valid url according to the definition:
http://en.wikipedia.org/wiki/URI_scheme

The scheme name consists of a letter followed by any combination 
of letters, digits, and the plus (

+"), period ("."), or hyphen ("-") characters; and is terminated 
by a colon (":")."

So it should probably just be an invalid time.

in R2.. can the object ( via make object! ) know the name ot itself 
somehow?

Only if you add it as a field yourself.

An object can refer to itself with SELF, like:
o: make object! [a: 1 b: self/a]
(maybe not a very useful example.)

Gregg.. aha, yes that was the option if there is no way..  Geomol 
.. thanks I wasn't avare of self.. but this probably doesn't enable 
me to see my name either because name of the object is name of the 
word is was asigned too .. so even if I do >> probe self << I dont 
have it ... looks like I really need to add it as a field

I wanted it for debugging and reporting purposes.. btw so I could 
get messages and see from which object they come from

a: b: c: make object! [val: 1]

3 words point to the same object. What should its name be?

(Hypothetical question, obviously.)

yes :) I thought of it too ... I will try to make something like 
a object factory function so I won't have to repeat myself  ... to 
not do
big-dog: make dog-agent [ name: "big-dog" .... ]  I will see

I believe that since the extra information can so easily get out 
of sync with reality, that it will just end up causing problems for 
you. Better to accept that there is no "reverse lookup" (not a quick 
one, anyway) of objects to words, and just adjust your debugging 
method somehow.

(Of course, it depends what you're doing. If you can be strict with 
managing the objects, then it could be alright. I'd avoid it, though. 
Less is more, usually.)

more timezone issues.  Switched clocks back last night as daylight 
savings ended.  now still says we are at +13:00 even though we are 
now +12:00 ... and my PC clock is correct.