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World: r4wp

[#Red] Red language group

Kaj
17-Sep-2012
[1933]
It's NONE, but I really wouldn't want you to change that in Red. 
And it's just the tip of the iceberg
DocKimbel
17-Sep-2012
[1934x2]
Added new actions: AT, SKIP, BACK, NEXT, LENGTH-OF.

You can now do a bit more than just PRINT 1. ;-) See:

	a: 123
	a: a + 2
	print a * 6 - a

	b: [4 7 9 [11] test /ref 'red]

	print pick b 2
	print pick pick b 4 1
	print pick next b 1
	print pick next next b 1
	print pick back next b 1

	print length-of b
	print length-of next next b
	print length-of pick b 4
	print pick at b 2 1
	print pick skip b 2 1

	print pick at next b -1 1
	print pick skip next b -1 1
I'll extend FORM tomorrow so we can print more types.
Kaj
17-Sep-2012
[1936]
#233 is back
DocKimbel
17-Sep-2012
[1937x2]
Looking into it.
Fixed it. Going to rest now, will process other tickets tomorrow 
morning.
Kaj
17-Sep-2012
[1939]
I'm busted, too. Night
Pekr
17-Sep-2012
[1940]
Reading all the discussion about R/S source inclusion in the Red 
- it seems pretty complicated and confusing at best. Apart from the 
three options discussed on friday, it is the "least powerfull" one. 
It is not any kind of inlining R/S code into Red from the runtime 
point of view, hence I wonder, why it is not simply called an #include? 
I know you might want to two cases now:

#include %some.red
#include %some.reds


But that's distinguishable, and unifies the naming, as well as it 
does what the name suggests - it is just preprocessor kind of directive 
for including either the red, or r/s source into Red ....
DocKimbel
18-Sep-2012
[1941]
About your proposition:


- #include is for including files, not for inlining literal code, 
which is precisely the purpose of #system* directives.


- you can't use #include to include directly two different languages, 
that would be confusing for everyone and it's a semantic mismatch 
(making users think Red/System code can be directly used in Red with 
no clear separation between the two).


- #include is a preprocessor directive, #system is a compiler directive 
(processed during compilation)


- #system* directive are not complicated nor confusing, they are 
pretty simple and should look intuitive to C users (having the habit 
to inline ASM code into C). Those users are the target users for 
Red/System (remember that most Red users will never program in Red/System).
Rebolek
18-Sep-2012
[1942]
Will there be possibility to use inlined ASM code?
Pekr
18-Sep-2012
[1943x2]
Well, not coming from C kind of languages, I actually used code inclusion 
rarely. The preprocessing stuff in any language looks arcane to me, 
but that's just my feeling, as it is REALLY a long time ago, since 
I used code -> compile -> link technique (CA-Clipper - 1998 :-)


So I better wait for more "clean" way - the other method you described 
- simply what I am expecting is kind of Rebcode - writing any function 
in Red, using Red/System or C or ASM, whatever :-) But most probably 
I am confusing and create a mishmatch even in such case :-)
one small question though - what "secret project" are you guys talking 
about? :-) I expect you will not want to tell, otherwise it would 
not be secret anymore, right? :-)
DocKimbel
18-Sep-2012
[1945x2]
Inline ASM: we might add that at some point, but you can already 
access some low-level CPU/FPU features (like stack manipulation). 
I will extend that in the future to support CPU in/out commands and 
direct registers reading/writing, so ASM support will be less necessary. 
Also, there's a cheap way to support it, adding the option to inline 
machine code directly in Red/System code flow (you would have to 
use an external ASM for generating the machine code). Something like: 
inline #{....machine code...}
Secret project: that's a secret! (there's actually two secret projects, 
one by Kaj, one by me ;-))
Pekr
18-Sep-2012
[1947]
ok, cool, so looking forward to the reveal of the secret projects 
... which is going to happen cca ... when? :-)
Rebolek
18-Sep-2012
[1948x2]
Is Red ging to have something like R3's vector! datatype?
ging=going
DocKimbel
18-Sep-2012
[1950]
Yes.
Henrik
18-Sep-2012
[1951]
looking forward to seeing people writing operating systems in Red/System 
:-)
DocKimbel
18-Sep-2012
[1952]
Well, when CPU I/O instruction will be added, you'll be already able 
to make kernel drivers for Windows or Linux....and an OS is typically 
90% made of hardware drivers.
Rebolek
18-Sep-2012
[1953]
Pekr, if you are interested what action!s and native!s are currently 
available, I wrote simple parser that goes thru %actions.reds and 
%natives.reds and outputs list of all implemented functions.
Kaj
18-Sep-2012
[1954x2]
I've added Red versions of Fibonacci and Mandelbrot to my C library 
binding, but they're just the Red/System code inlined in Red, with 
the timing code stripped out because I can't import the C binding, 
and Mandelbrot doesn't compile yet
Is there any meaningful Red code I can show tomorrow?
DocKimbel
18-Sep-2012
[1956x2]
Only the examples I posted above yesterday night.
We don't even have proper string! support yet. I plan to implement 
it this week.
Kaj
18-Sep-2012
[1958x2]
I'm trying to wrap my GTK dialect in a context, but I'm hitting more 
context bugs
So it's going to be a traditional Red/System presentation, with little 
Red and contexts
DocKimbel
19-Sep-2012
[1960x3]
I've been very busy since yesterday on a new tool for Red: I've built 
a proper REBOL code profiler! (I wonder why I haven't done that since 
a long time...). I went through the profiler scripts on rebol.org 
and couldn't one suitable for my needs or that works with complex 
code, so I wrote one. It is able to deal with complex code, all datatypes, 
recursive calls and it's very simple to use.


Here's a demo profiling Red compiler (output is properly aligned 
when monospace font is used):

-= Red Compiler =-
Compiling red/tests/test.red ...

...compilation time:     40 ms

Compiling to native code...

...compilation time:     10189 ms
...linking time:         60 ms
...output file size:     37888 bytes
>> profiler/report/time


Function                       Count      Elapsed Time         % 
of ET

------------------------------------------------------------------------

compile                        1          0:00:10.249          100.0

comp-dialect                   205        0:00:09.659          94.24

fetch-expression               7505       0:00:09.628          93.94

comp-word                      5668       0:00:08.209          80.09

fetch-into                     427        0:00:07.519          73.36

comp-assignment                597        0:00:07.049          68.77

run                            3          0:00:06.492          63.34

comp-context                   21         0:00:06.398          62.42

comp-with                      1          0:00:05.565          54.29

comp-expression                3172       0:00:04.479          43.70

ns-find-with                   24277      0:00:03.962          38.65

finalize                       1          0:00:03.327          32.46

comp-natives                   1          0:00:03.274          31.94

comp-func-body                 180        0:00:03.271          31.91

comp-call                      2775       0:00:02.732          26.65

comp-func-args                 2861       0:00:01.862          18.16

find-aliased                   9650       0:00:01.86           18.14

resolve-type                   8032       0:00:01.799          17.55

get-type                       10758      0:00:01.546          15.08

ns-prefix                      21765      0:00:01.518          14.81

check-enum-symbol              7509       0:00:01.241          12.10

comp-block                     283        0:00:01.05           10.24

comp-variable-assign           417        0:00:01.034          10.08
The overhead of the current implementation is about 5-6 times the 
program execution time, so it's very usable. I will publish it today, 
and I hope someone will pick it up to improve it and add features 
(like a GUI front-end for the reports, with sortable columns).
BTW, as I was thinking, the above compiler profiling confirms that 
aliases and namespaces support are quite costly currently (ns-* functions). 
So now I know where to improve the code for better performances (not 
that it matters for the users currently, but it matters to me as 
I need to run the whole test suite dozens of time each day, and with 
the addition of now Red compiler, it (and will) adds up to a lot 
of waiting time at the end of the day).
Gregg
19-Sep-2012
[1963]
That's great Doc!
DocKimbel
19-Sep-2012
[1964]
REBOL code profiler released: https://github.com/dockimbel/Red/blob/v0.3.0/red-system/utils/profiler.r


Should work with any REBOL app. Documentation, comments and example 
included in file header.


Hope someone will pick it up and improve it (like adding functions 
sub-tree stats and a GUI). This is github, so feel free to fork then 
fix/improve.
Pekr
19-Sep-2012
[1965x3]
Doc - your twitter account got spammed?
Calculator Hero lets u fulfil challenging computing tasks with simplest 
operations!! DOWNLOAD NOW 4 iPad ver. 
Or is that new secret Red app for iPad? :-)
DocKimbel
19-Sep-2012
[1968x3]
Thank...has my password been cracked or are they means to post in 
name of someone else?
(tweet deleted)
I've changed my password just in case.
Arnold
19-Sep-2012
[1971x3]
Can someone tell me why for example in https://github.com/dockimbel/Red/blob/v0.3.0/red-system/utils/profiler.r
to use 

set 'make-profitable func [][] instead of make-profitable: func [][] 

because the second kind of declaration is also use in this script 
and I do not see why both are being used; you have a preference for 
one over the other so you use one, not both?
set 'make-profitable func [][] instead of make-profitable: func [][] 
the link overwrites this line in my version of AltMe sorry!
This also was meant for Rebol-school. Closing down AltMe and restart.....
Pekr
19-Sep-2012
[1974x2]
Arnold - that's the old altme url bug. In order to be able to read 
such lines, just change the size of text for a while (aA button above 
the text field)
Arnold - 'set example is one trick you can use in REBOL. Normally, 
when you enclose the function in the object/context, it is accessible 
via a path notation, e.g. context/make-profitable. When you use 'set 
aproach, it lives inside the context, but is exposed to the global 
context, so you can call it directly, or something like that :-)
Arnold
19-Sep-2012
[1976]
Thank you Pekr. It is a little to subtile for my mind and current 
REBOL knowledge, I will have to live with this ;-)
DocKimbel
19-Sep-2012
[1977]
It's "make-profilable", not "profitable"...well at least, not yet. 
;-)
Arnold
19-Sep-2012
[1978]
LoL! I was totally unaware I changed that. :D
Pekr
19-Sep-2012
[1979]
:-)
DocKimbel
19-Sep-2012
[1980]
@Arnold: I've pushed an update to profiler and I've made nested functions 
exposition to global context more elegant. ;-)
Arnold
19-Sep-2012
[1981]
Maybe it is more profitable now :D
DocKimbel
20-Sep-2012
[1982]
Red FB group: https://www.facebook.com/groups/redlanguage/

My new public FB profil: https://www.facebook.com/redlanguage


Those that sent my friend requests recently to my private page, can 
now resend them to this new one.