World: r3wp

oh, that is an internal ladislav mastery script

I mentioned the script recently on the ML: http://www.fm.tul.cz/~ladislav/rebol/peekpoke.r

(but it can be called arcane magic, I guess :-)

;-)

>> a: "this is a string"
== "this is a string"
>> adr: string-address? a
== 17496432
>> len: length? a
== 16
>> clear a
== ""
>> as-string memory? adr len
== "^@his is a string"

;-)

this is quite clean :-)  hum for debugging .

Anton used the same words, IIRC

very powerfull.  i learned something more today :)

Anyone remember the way to set all the fields of an object! to another, 
similar object! ?
I want to do this for font objects.

a: make object! [b: 445 c: 444]
 b: make object! [b: 999]
b: construct/with third a  b  ;; set b to a's values and fields

I have a further requirement; the object should be modified in place.

Let me get my example together:

f: make svv/vid-styles/text/font []
f2: make svv/vid-face/font []

Ok, so I want to modify F's fields so they are the same as F2's fields.

I think I found the way:

set f reduce bind copy next first f2 f2

You beat me to it with a better solution -- I was going to suggest 
a loop:
foreach v next first f [set in f v get in f2 v]

Yes, I was hoping for a bulk-set operation.

Anton's version requires recent releases, where SET works on objects. 
Nice though!

That's ok, it's for the menu style I've been making, which already 
relies on several features added in recent times ... :)

Could you just do: set f get f2?

Or do you need to rebind?

Excellent - that's what I was trying to remember.
( I think I only tried   set f f2  )

Seems to work the same.

Does anyone remember where we brainstormed that new SWITCH mezzanine, 
just before it became native ?

RAMBO, late last November.

Ah.. thanks!

>> a: [1 2 3]
== [1 2 3]
>> b: a
== [1 2 3]
>> same? a b
== true
>> b: next b
== [2 3]
>> same? a b
== false


Is there a way to check that b is the same block as a, just at a 
different position?

>> same? head a head b
== true

I guess that is the solution

correct

What is system/options/browser-type ?

What is system/options/browser-type  for?

I guess it is useful for the browser plugin.

I'll buy that.

yep... needed to switch DOM and the like  :-)

strange, I tried printing that path and in 2.7.2  it doesn't seem 
to exist... in what version did you try that?

btw... I assumed anton was confirming that the above path was usefull 
or part of plugin use... in that circumstance, the browser type would 
be usefull to know if the browser is mozzilla or IE based... but 
now... I'm a bit perplex!

Maxim; REBOL/View 2.7.6.4.2  REBOL/Core 2.7.5.4.2 I just noticed 
it.  It's an integer! 0 in both.

Not in 2.5.6.4.2 REBOL/Pro from Linux SDK, built 5-aug-2003

the async abilities found in certain releases of REBOL don't apply 
to locally stored files, do they?

they don't, afaik.

random

I was checking out the random function, and it seems to only produce 
random numbers related to the integer datatype. Even if input is 
a decimal, a whole number comes out. So random can produce 2 ** 31 
- 1 different outputs. Is that correct? Would it be an idea to ask 
for 32 bit or 64 bit random numbers in REBOL v. 3? Maybe if input 
was 1.0, it could produce a 32 or 64 bit number between 0.0 and 1.0?
Any ideas?

it would be nice... submit it to Rambo or use feedback

A little related: It seems, that the largest whole number in REBOL 
is 10 ** 15 - 1 = 999999999999999.0

But using random on that number will only produce output from 1 to 
2 ** 31 - 1 = 2147483647, which is the largest integer. The implementation 
in REBOL is probably related to the ANSI C rand function, which produce 
output from 0 to RAND_MAX, which is at least 32767 (probably cpu 
related).

yep, random is 32 only

however, random/secure on a series might produce more than 2^31 combinations 
- in principle the generator should be able to, but if it's used 
or not i don't know.

is 32 only
 = "is 32 bit only"

Ladislav may know more here. also, r3 has 64bit ints, so maybe random 
will use all of them :)

Random also works on dates and times, so that _may_ get a wider range:
   random now.precise