World: r3wp

suden visitor. Have to talk in person :)

I've got a question. open/skip does not work?

open/seek ?

That was added later. /skip works thru some networking IIRC.

I need it on files

Try seek, and then use 'skip etc. IIRC that works. (needs the newer 
rebols)

hm, works strange, but works :)

port: open/direct/skip url size ; resume position <- this can fail 
when file is complete already

I just spent a couple of nights working on a batch-downloader.

Anton, yes bcc is a blind copy. Gabriele explains it better than 
I did.  I found it very easy to code the new send function with the 
snippet above . The trick is to compose the right header and then 
send the message to both the to and bcc recipients. The MTA does 
remove the bcc field so the to: recipient or even the bcc: recipient 
do not have a bcc header field

It does seem that the bcc issue is caused by the presence of bcc 
in system/standard/email. Perhaps send could raise an error if it 
finds bcc set - and or - remove bcc from system/standard/email.

Maxim, re http-post. Are you talking about a bug in the http scheme? 
You seem to be implying something structural. Is the issue fixed 
in the new versions of REBOL or still present?

Brett, bcc is set to none by default so it doesn't cause any issues. 
If the field is set and exported as part of the header, the mail 
transfer agent will remove it

yes the scheme had issues with content lenghts.  and I needed to 
post in 1.1 which is not handled directly by the scheme AFAICT.

I though I've got it working but it was a mistake. I'm still not 
able to use /skip refinement on files succesfully. Does anybody now, 
if it's possible to OPEN or READ file from some offset? I saw some 
bug filled in RAMBO two years ago :(((

p: open file
p: skip p 123
data: copy p
IIRC

open/seek

so /skip refinement is good for what?

I cannot use copy/part in this case :(

/skip : Backward compatibility. It helps with resume through http 
AFAIK.

So how can I succesfully write read/binary/part/skip ?

write %test.txt "123456789"
p: open/seek %test.txt
p: at p 4
probe copy/part p 4

Thanks

Do I need reduce/deep? Example:
x: 0.123
v: reduce/deep [ [- x 1.0 1.0] [0.0 0.0 0.0] ]

v should now hold: [ [-0.123 1.0 1.0] [0.0 0.0 0.0] ]
But reduce don't have a /deep refinement, and if I do:
v: reduce [ [- x 1.0 1.0] [0.0 0.0 0.0] ]

those inner blocks ain't reduced. Is there another easy way? I don't 
wanna have REDUCE inside the block.

compose/deep ? Also a reduce-deep would be a few lines.

Yeah, I guess. compose/deep require parens inside the block. I could 
make a reduce-deep function, but that'll hit performance. REDUCE 
is native. Should reduce/deep be part of REBOL 3 maybe?

For sure.

You need a lot performance?

I'm using this feature in the OpenGL API, I'm working at. Maybe I 
could do a late reduce, when accessing the inner blocks.

Volker, yes I need all the performance, I can get for this.

Is there a time when one doesn't want inner blocks to be reduced?

 I don't wanna have REDUCE inside the block.

 Is that only inconveniert, or would it really make problems? Maybe 
 some kind of automatic rewriting could help?

James,  parse-rules inside a block?

Yep. You're right.

I was just thinking how this particular behavior has caused me some 
trouble in the past but I see why they did it that way.

You would think  there would be a "complete" reduce parameter though 
that just works the way one would think it would.

Would rebcode be an option? Or a dll for some datastructures?

Volker, a rebcode version will probably make sense later, but I'm 
under OSX right now, where the rebcode is an old version.

I doubt  i find a good idea, so if i am boring just say stop.

Would it work to flatten the datastructure? /skip instead of nested 
blocks? Tehn 'reduce would work.

Well, that could work. But the situation is, that the datastructure 
is made by the user, so it should be as straight-forward as possible. 
Example of a structure:

vdata: [	
	[- X 0.0 Z] [X 0.0 Z] [- X 0.0 - Z] [X 0.0 - Z]	
	[0.0 Z X] [0.0 Z - X] [0.0 - Z X] [0.0 - Z - X]	
	[Z X 0.0] [- Z X 0.0] [Z - X 0.0] [- Z - X 0.0]
]


I think, I'll do a late REDUCE of the inner blocks, when I access 
them. But thanks for your ideas! :-)

You could also "compile" the users data into something else one time, 
and have a better format in the loops?

But if it works for now go on with the funnier stuff :)

You see, the C version of that structure is this:

static GLfloat vdata[12][3] = {	
   {-X, 0.0, Z}, {X, 0.0, Z}, {-X, 0.0, -Z}, {X, 0.0, -Z},	
   {0.0, Z, X}, {0.0, Z, -X}, {0.0, -Z, X}, {0.0, -Z, -X},	
   {Z, X, 0.0}, {-Z, X, 0.0}, {Z, -X, 0.0}, {-Z, -X, 0.0} 
};

And I want something similar, so users don't confused too much.

Makessense.

Are the users going to enter such an array as above?

I already have some OpenGL examples from the red book of OpenGL running 
in REBOL syntax. It's funny to see those examples in REBOL with the 
minor syntax. :-) I have no real idea of performance yet, I need 
heavier examples for that.

james, no C syntax. I'm making a REBOL version of the OpenGL API 
with REBOL syntax. Users will be able to use normal REBOL and call 
OpenGL functions (with REBOL syntax).

Thanks. And right now, it's the variables (x,y,z) reduction that 
is the problem?

yes

To give you an idea.
Instead of doing this in C:

	glClear (GL_COLOR_BUFFER_BIT);

	glColor3f (1.0, 1.0, 1.0);
	glBegin (GL_POLYGON);
		glVertex3f (0.25, 0.25, 0.0);
		glVertex3f (0.75, 0.25, 0.0);
		glVertex3f (0.75, 0.75, 0.0);
		glVertex3f (0.25, 0.75, 0.0);
	glEnd ();

	glFlush ();

You can do this in REBOL:

	glClear GL_COLOR_BUFFER_BIT

	glColor3f 1.0 1.0 1.0
	glBegin GL_POLYGON
		glVertex3f 0.25 0.25 0.0
		glVertex3f 0.75 0.25 0.0
		glVertex3f 0.75 0.75 0.0
		glVertex3f 0.25 0.75 0.0
	glEnd

	glFlush