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Did you see http://www.rebol.org/view-script.r?script=supercalculator.r&sid=f4jz
(script start in the just last 20 lines)
instead of parse you can use "replace/all" and work evene better

Ladislav... according to wiki, addition, subtraction, multiplication 
and division are left-assiciative... http://en.wikipedia.org/wiki/Operator_associativity

Now that I take a paper and a pen... left-associativity is indeed 
natural :)

I put my %evaluate.r script processing operators with different priorities 
and associativities to the

http://www.rebol.org/view-script.r?script=evaluate.r


as well, since I think there it will be more accessible to the public

Much more complicated

 - do not forget it processes three different rule sets, each of which 
 uses different priorities and associativities.

the rule sets are described in the comments to the SRA, STD and RLE 
functions

THat's why parsing reversal and taking care of ** specifically might 
be a good start...

Parsing reversal does not help IMO, because you have to process both 
left- and right-associativity at the same time

I think I found a way... see you later today (or tomorraow). Again, 
many thanks for your feedback and congrat for your impressive script

Voilà... I renamed my script as parse-expression.r and it is on rebol.org 
... http://www.rebol.org/script-information.r?script-name=parse-expression.r

I just had to repace 5 'append into 'insert, so it fixing this big 
did not brak the "philosophy" of the implementation. Ouf :)

Example:
>> do parse-expression "-(-3+2)+3-2+3-sqrt((1+2)**2)-2**3+34"
== 28.0

Yes... Ladislav reminds me some basic math! God, I felt so stupid 
about this associativity bug! 

The reason why I developped parse-expression.r is because I need 
it to build an companion app for one of the best math book: Calculus 
3d edition from Smith & Minton! For now, I have developped a rebol 
library to transform any vid face into a function plotter, and parse-expression.r 
allows me to use human readable expression in the gui instead of 
guru rebol code :)

Ladislav:

How would you interpret x**-1/2 :
(1) [divide power x -1 2]
or 
(2) [power x divide -1 2]


A previous version of parse-expression.r returned (2)... but i considered 
this as a bug and changed it for (1) (see history 0.9.2 in the header 
of the script). But now, with our discussion on associativity, i 
am not sure anymore... 

Thanks for your help!

hehe... I've been trying things for 15 minutes and just as I write 
this... I finally get it... hehehe   'END.

I don't need to see the code, because it's very simple: there's Pro, 
and you only have to disable some parts of it

Andreas, the changes doc wasn't updated yet. Most of the native changes 
that didn't have checkmarks next to them weren't done. This was a 
minimal release, so some stuff got put off to 2.7.9. Give me a moment 
and I will try to list the changes in that list that were in this 
release.

Nevermind. Prompted by Kaj mentioning it previously, I was just checking 
if this was fixed in 2.7.8 and found it it wasn't.

Instead of access-os there are also new natives list-env and set-env

BrianH: what are you talking about? Wasn't /shell and /library released 
for the /Core for free already?

talking any "revenue" in regards to RT and business, is quite funny 
imo ...

No, it doesn't work on my systems, and I've discussed it extensively 
a year ago

Diffs from the old preliminary changes doc to the actual 2.7.8 release 
(that I know about):

- No installer changes yet (my bad, I didn't have time to do them)
- SINGLE? is LAST? instead
- RESOLVE is a (slow) mezzanine for now, not native

- Don't know about what the Command boot problem was or whether it 
was fixed
- No HTTP fixes yet
- No X fixes yet

- ASSERT and APPLY are still mezzanine, and ASSERT is still rather 
bad
- No FOREACH setword support yet
- SET-ENV native (with limits)
- Delay sound subtask creation (whatever that means)
- RUN function uses 'shell access in SECURE
- FIND and SELECT on objects
- FUNCT /extern option, SPEED? and DT

- Some fixes to bugs in RAMBO that I don't know since RAMBO is down

Petr, it's not even a concrete problem for me anymore if Cheyenne 
now works properly. What keeps getting to me are the broken promises 
that destroy my planning and my trust

Carl was glad with the compliments on 2.7.8, but likewise, I seem 
to be the one who will have to promote R3 on OSNews in the time to 
come, and I can't do that if I don't believe in it

BrianH: the problem was seen on Windows, not sure about Linux 2.7.7, 
but I can confirm that the problem hasn't showed up on Linux 2.7.8. 
For the script, I have one from a customer showing up the problem, 
I need to shrink it and test if again first.

BrianH: the problem happens with any script encapped with encmd and 
enpro 2.7.7.3.1. I just tried with: REBOL [ ] print "hello". The 
error pops up when the encapped exe is launched. An alert window 
displays: REBOL Internal Error: Boot error: 316.

I tested this script for all the encappers of 2.7.8 (not officially 
released yet) with this script:
REBOL [] print "hello" halt
All succeeded, and all apps worked.

continued from REBOL3! group.


they where not listed in RAMBO... I was just lucky to be online with 
Carl and it got fixed in a beta version of 2.7.7 in one afternoon 
with cyphre giving a more robust fix the day after.


 He also had the fix to another annoying issue which makes first item 
 to follow a space in a text to affect the transparency.  the more 
 spaces the darker it gets.  his even affects other items in a text 
 ends with spaces ! 

though I wonder if that ended up in the 2.7.8 release ' :-/

Cyphre had the second fix, but Carl disapeared then and it never 
got included AFAIK, so it may be in 2.7.8 though Cyphre would have 
to confirm this.

I discovered the bug while typing in a text field and the color of 
the field changed whenever I typed in a space!


It took me a while to realize it was a problem in AGG and not in 
my code... :-)

And I would like to see a moveable window for dates

correcting the agg bugs in r2 ? i would like antialiasing better 
fonts more readable less bug around the handling of font fixed etc... 
but as it just conserns my particalr and singular needs and as noone 
likes me i think i can forget it .... a bugfix to agg matrix  would 
be  nice too .. I know i'm such an egoistic being etc ...

give me glyph size to pixel size or an automated internal way to 
composite text on a line having different size and bang ritch text 
area will be possible ...

speed.r kind of becoming natural part of R2 and R3 - http://www.rebol.com/article/0506.html

Ashley, that looks like the R3 source of LS, not the R2/Forward source. 
For that matter, the R2 source of LS on Windows doesn't look like 
it has changed either, and looks like the old R2 source. I'll look 
into it.

Just remembered: The reason R3's LS wasn't backported to R2 was because 
its behavior wasn't settled yet. However, since there have been no 
changes in it for more than a year, and it's just a console-level 
formatting function, there should be no reason not to include it. 
In the meanwhile the R2/Forward version works fine.

am I the only one who notices that cut and paste is completely broken 
on Rebol2 new releases?

I can paste into here, and everywhere except Rebol2 2.7.8

Works for me on XP (normally I would have 7 but that computer needs 
rebuilding). Right-click menu, ^V and read clipboard:// .

am I the only one who notices that cut and paste is completely broken 
on Rebol2 new releases?
 - most probably yes, it works for me - Windows 7 64-bit

Well, windows cut and paste services are working for me with other 
apps ( except chrome which often won't allow pasting from chrome 
into other apps ) so I guess I have some weird software that is stopping 
this working.  Often it goes away when I reboot ...

Graham, I sometimes see the copy  problem happening. I'm not sure 
why it happens and I am usually running rebol. Mostly I notice it 
with Ultraedit and Altme though I think they become the victims of 
the circumstance. I'll notate it more closely when it happens the 
next time. BTW, paste always seems to work but it will of course 
paste the last thing it could copy.

Not for me ... I try the Control-C, and also Control-X and right 
click, copy .... but can't paste into Rebol.

Ah. Yes, I've seen that too. As I mentioned, this happens in Ultraedit 
though I'm not sure if rebol is originally causing it or not. Usually 
I have to close down the app and restart it to make it work again.

one thing to look out for in view (in any face using the caret and 
standard focus mechanism) is that when windows are closed, they do 
not unfocus their fields.  this has bitten me quite a few times which 
made other key handlers seem like they where dead.


this is why you should always call unfocus when you open or close 
a window in view.

Well, this is interesting....


I don't have clipboard functionality in 2.7.8 while Prevx is running, 
but I do in 2.7.6.  Turn off Prevx monitoring and my 2.7.8 clipboard 
starts to work again.

Didn't you install it for nailing your clipboard and screen buffer 
shut?

And i'm forced to use 3 different browsers

Or you can camp out in the Prevx forums and make sure that every 
program that you use/make that uses the clipboard gets on their whitelist.

I think I'll just uninstall it ... and use the MSE one

I guess it's a matter of choice how one spells things and also better 
to avoid other products with the same name but different spelling.

Kaj explained thath this depended on OpenGL and the quality of the 
3D card

And where it is today

Give up and pick another language

just an embeddable core into other environments, or will some GUI 
be possible later too? Also - will concepts like 'parse be available? 
networking (and other) ports?

- First-class functions and HOF support

talks and confer there

Congrats to Bas and Kaj for this conference

And spéciale dédicace à DocKimbel ;)

Bas, any links to what was discussed when we were asleep and on a 
different continent?

Material and links will be published over time when they become available

Hi guys, I've spent a great time at the conference (and after also) 
with the people present. A big thank to Bas and Kaj for organizing 
this event, it was really nice meeting you all (pity that Robert 
couldn't been there to present RMA's GUI). The Boron's OpenGL demo 
was impressive (Star Trek's Enterprise ship), I'm looking forward 
to see the dialect used for that.


 I'm currently preparing the slides I've presented to put them online. 
 Should be done in the next hour.

Btw, I'm currently connecting from the train on the road back to 
Paris at 200km/h using the train's wireless network! (I guess it's 
using a satellite connection, because latency is high and upload 
speed very very low). Nice technological achievement anyway...if 
only the train could get to destination without being, on average 
20mn late, that would be even greater! ;-)

Waiting for photos and videos... ;)

Years ago I had a bog slow connection and AltME was the only communication 
system that kept working

Ok, I'll fix them and will re-upload the presentation.

I remember you used altme before and of course all that discussion 
is now gone ...

red_lang now has 6 followers and no tweets!

Graham - it was sad irony on my part :-) I remember how I translated 
Carl's interview somewhere in 1996, when he left Viscorp, and was 
asked by Gateway, to join in and to lead Amiga. He has choosed REBOL 
instead, stating, that he wants to avoid Amiga mistakes of the past. 
Now he is effectively killing REBOL by no-action just the same way 
....

Oldes - I fear that Carl closes the shop, instead of open-sourcing. 
Or - he might continue in R3 development, doing 2 releases per year, 
being still in alpha after another 5 years, and gaining some momentum 
on some vapor lists, where e.g. Amiga is being recently listed :-)

Red's MIT/BSD licensed (which? both?) so there 's no reason we can't 
work on both R3 and Red.

So, developers will have to choose where they want to go ... and 
there's a limited pool of rebol developers

Graham - developers can't affect R3 Core development, not in public 
enough manner. So Red might be a testbed for R3 too ... and who knows, 
maybe Carl will be motivated to restart R3 development :-)

the last time there was a language fork .. RT made some announcements 
to try and make rebol more attractive

I almost never use R2, except for R2/Forward. Most of my work is 
in R3, and depends on it. For me, R3 works already, and "alpha" is 
irrelevant.

The main block on sharing work with Orca/Boron and REBOL is their 
license.

That's why I'm tied to R2 Petr, and CALL is important to me as well.

Pekr: Interpreted as well and written in C, so no possible code re-use 
for Red. But I must admit that if I hadn't choosed the compilation 
path, I would have jumped into Boron to contribute. There's some 
good potential there for a serious R2 open source clone.

someone should get the info to Carl, maybe he will stop breeding 
chicken and start coding R3 again :-) (just a joke - I have nothing 
about breeding animals :-)

Agreed, Pekr, but my situation is different. I don't use most of 
that stuff, and when I do I have R2, or many other languages. Most 
of my apps have no UI.

Gregg - right, I forgot that one - 'call, and very bad console, which 
did not serve initial purpose - being usable via ssh etc connection 
anyway ...

Today, the best way is to open sourced R2 and merge with Boron effort.
As R3 is different from R2.

Karl has published the 3D Boron demo, including OpenGL Boron builds 
for Linux and OS X:

so the name is free to use, does not contain REBOL name (trademark), 
so free to use, and "REB" indicates it is rebol related ...

Pekr, I would expect you to pick a more decent and constructive approach. 
How did you find out you had the right to decide? Did you ask anybody?

Ladislav - what are you talking about here? What is decent and constructive 
about the conference name? Are we going to be censored here, or what? 
This is really starting to be crazy. Look at the Amiga - there is 
AmigaOS, Aros, MorphOS, UAE, there was Amithlon .... and I expect 
ppl meeting at various accassions, to share the spirit of the Amiga, 
although there were some infights between the groups.


Now to REBOL. Last DevCon (Italian Devcon was not even called RebCon 
- http://www.colellachiara.com/devcon05/) was held in 2007 in Paris? 
Then there was one online meeting coordinated by Nick (?), and there 
was an attempt to organise DevCon in Prague, in two consecutive years. 
Carl decided not to attend, from various reasons, so we decided not 
to push the idea of the conference forward.


Then I remember the chat of the community about the topic, thinking 
about organising some REBOL related conference in Amsterodam, simply 
to allow ppl to meet, not necessarily being dependant upon RT attending 
the conference.


And now guys organised ReborCon. I know it was initially related 
to Syllable, and REBOL clones. But - if you read the website carefully, 
the topics are much broader - it already mentions topics for R2, 
R3, Boron, Red. So - what is the problem here? To abandon non official 
REBOL topics on conference, which is called RebCon, because somehow 
imaginary, RT might have the right to "own" the conference name?


Shouldn't we be in fact gratefull, that Doc did not abandon REBOL 
ultimately, but starts his own project he believes in, which in the 
end can benefit for both sides - Red and R3? Is there really NO right 
for me to even not suggest a possible conference name?


The Rebcon conference name was just first out-of-my-head suggestion. 
I can come-up with some others - ReClone, ReCon, or even ReDCon (Rebol 
Developers Conference), and if you give me some time, I might come 
with something even more sophisticated marketing-wise ...

Were there any conferences actually organized by RT?  My recollection, 
faint as it is, and having never actually been to one in person, 
was that they were all community organized.

I would like this topic being settled, because we are getting into 
advocacy here, and the strange reaction came from RMA guys, while 
I ABSOLUTLY don't insist the conference being called RebCon. It was 
just quick suggestion, nothing more :-) We can as well pick-up another 
xy names. My idea was really open, I thought that even RT could inform 
about such an event in the community section. Of course it depends 
if Carl feels threatened by projects like Orca, Boron, Red ....

And if I look into Genesi company for the inspiration, BBRV are flying 
around the world, attending meetings of local user-groups. They imo 
know why they are doing it - to motivate ppl.

Henrik, you need two main archives for the Boron demo. Pick the boron-gl 
archive for your system and use the boron-gl executable to start 
demo/present.b in the demo archive

You need to have OpenGL 2.1 and OpenAL installed in your system

I downloaded both, but the BoronGL application does not start. When 
I look in the console, it presents its help information there. I 
then went into the application bundle and started boron-gl there 
and only then was a console presented, which crashes, when typing 
DO.

28/02/11 16.02.48	[0x0-0xab49b3f].boron-gl[79567]	Boron-GL 0.1.11 
(Feb 24 2011)

28/02/11 16.02.48	[0x0-0xab49b3f].boron-gl[79567]	Usage: /Users/henrikmk/Downloads/Applications/boron-gl.app/Contents/MacOS/boron-gl 
[options] [script] [arguments]
28/02/11 16.02.48	[0x0-0xab49b3f].boron-gl[79567]	Options:

28/02/11 16.02.48	[0x0-0xab49b3f].boron-gl[79567]	  -audio  Disable 
audio

28/02/11 16.02.48	[0x0-0xab49b3f].boron-gl[79567]	  -e exp  Evaluate 
expression

28/02/11 16.02.48	[0x0-0xab49b3f].boron-gl[79567]	  -h      Show 
this help and exit

28/02/11 16.02.48	[0x0-0xab49b3f].boron-gl[79567]	  -s      Disable 
security

We want to emphasize the family nature of these languages, and the 
goal of the conference to unite both the languages and the people

Petr is right that the gathering of people creates a powerfully positive 
atmosphere. In fact, organising this conference was extremely frustrating, 
to the moment that I didn't feel like doing it anymore, being there 
was wonderful, and now that we're back home, I'm immediately plunged 
back into the frustration again. It's a rollercoaster

Kaj - just a note - RebCon was NEVER an official name of REBOL conference 
IIRC. It was REBOL DevCon. At least 2005 (Italy) and 2007 (France) 
say so.

And as for me - I don't really care. All I care about is when ppl 
meet. That helps a lot to be more tolerant, spread a good atmosphere, 
and make friends.

example: http://paste.factorcode.org/paste?id=2318It looks now 
it's REBOL (binding) issue (although doesn't seem logycal to me). 
I tried in python and someone tried in C and it did work.

And is the former path accessible under rebol?

Awi, do you have the same version of dll/so and sqlite db?

Yes, the db and the dll should be in the same version since the db 
was created using the same dll.