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World: r3wp

[Core] Discuss core issues

Louis
6-Jun-2007
[8246]
sqlab, thanks. But no matter what number I use it is not working 
for me.
Anton
6-Jun-2007
[8247]
Will, I think so.
Oldes
6-Jun-2007
[8248]
Louis:   if you:

open tcp://localhost:8001


you do not open port for listening but for reading/writing as for 
example:

p: open tcp://www.rebol.com:80


so if you can open such a port on localhost, you MUST have something 
what listens on such a port
Anton
6-Jun-2007
[8249]
Oh yes, Oldes is right.

Remove "localhost" if you want to be a server. The docs are right.

Your next script, the rebol client that connects to this server, 
*will* specify localhost.
Louis
6-Jun-2007
[8250]
Anton, Olds, sqlab, thanks for the help.

Here I paste directly from the docs:

>> server-port: open/lines tcp://:4321
** Access Error: Error opening socket listen port
** Near: server-port: open/lines tcp://:4321
>>


Could there be something wrong with the way XP is set up that is 
causing this?
btiffin
6-Jun-2007
[8251x2]
Louis;  Is something alreasy open on 4321...try another port...
Never mind...just read back through the thread.  Time for sleep. 
 :)  Good luck.
Will
6-Jun-2007
[8253]
Anton: you mean we need a repath function?
Louis
6-Jun-2007
[8254]
btiffin and sqlab, it turns out that you both suggested the right 
thing. I must have a lot of ports being used already on my computer. 
Since you both thought this is what was wrong. I just kept on trying 
port numbers until finally...it worked! Thank you both very much! 
 Thanks to all of you that helped me, this day has ended pretty good! 
 Having endured the earlier aggravation, the good feels even better 
than usual.


So many ports being open does make me wonder why, however. That seems 
a little dangerous to me.
Ammon
6-Jun-2007
[8255]
Louis, here's a windows tool that will let you see what ports are 
open and what application is listening on the ports.

http://www.nirsoft.net/utils/cports.html
Oldes
6-Jun-2007
[8256]
or use this http://www.microsoft.com/technet/sysinternals/utilities/TcpView.mspx
Louis
6-Jun-2007
[8257x2]
Ammon and Oldes, thanks. I'll check them out.
87 ports open---most of them by REBOL.  The script was working, but 
I didn't realize it because no window was opening.  This was the 
result of working too many hours without enough sleep. It just doesn't 
pay.  We get more done in the long run if we stop and play or sleep 
when we should. Thanks again, you guys, for all the help; very much 
appreciated!
Gregg
6-Jun-2007
[8259]
Will, a REPATH, AS-PATH, or DO-AS-PATH kind of thing would be very 
handy at times.
Louis
6-Jun-2007
[8260]
Does the following line only work with e-mail?

system/options/binary-base: 64  ; best binary encoding
Oldes
6-Jun-2007
[8261]
>> probe as-binary "test"
#{74657374}
>> system/options/binary-base: 2
>> probe as-binary "test"
2#{01110100011001010111001101110100}
>> system/options/binary-base: 64
>> probe as-binary "test"
64#{dGVzdA==}
Louis
6-Jun-2007
[8262]
Thanks, Oldes!
Louis
7-Jun-2007
[8263x6]
Good progress, then stuck again. I can get one file transferred, 
but I don't know how to transfer the following files. This is the 
server (put it in an empty folder): 

rebol []

print ["This program RECEIVES files sent by send-files-tcp." newline]
port-num: request-text/title/default "Port Number: " "2006"
url: to-url rejoin ["tcp://:" port-num]
received-file: copy first open/binary url
write %file-names decompress received-file
files: load %file-names
foreach file files [

    received-file: copy url ;<======== HOW DO I FEED IN THE NEXT FILE?
    write/binary file received-file
    print ["Successfully received file: " file]
]

ask "The files transfer is complete. Press <Enter> to close."
This is the client; put it in the folder containing the files you 
want to send.

rebol []
ip: request-text/title/default "IP Address: " "localhost"
port-num: request-text/title/default "Port Number: " "2006"
url: to-url rejoin ["tcp://" ip ":" port-num]
system/options/binary-base: 64  ; best binary encoding


print ["This program SENDS all files in its folder to receive-files-tcp." 
newline]
print "NOTE: receive-files-tcp must be running on the remote"
print ["computer before starting this program." newline]

files: read %. ; Note that 'files is a block of file names.
save %file-names files
server: open url

insert server compress as-binary read/binary %file-names ;send file 
names
file-block: []
foreach file files [
    if not find file "/" [insert file-block file] ;remove folders
]
files: file-block
foreach file files [
    insert server compress as-binary read/binary file
    print ["Successfully sent file: " file]
]
close server

ask [newline "The files transfer is complete. Press <Enter> to close."]
The design is to place the server in the folder on the computer to 
which you want to transfer files.  Place the client in the folder 
on the other computer containing the files you want to transfer.
Start the server first, then the client, and file transfer should 
be automatic.
....that is if I can get it to work...with your kind help.
It actually needs View to run, but I put it here because the question 
is Core related.
Geomol
7-Jun-2007
[8269x4]
Louis, I think, your problem is, that you only operate with one port. 
When you define a listen port in REBOL, you receive a port from that. 
This new port can be used to receive the file. Something like:

listen-port: open/lines join tcp://: port-num
wait listen-port
talk-port: first listen-port
file: first talk-port
close talk-port
wait listen-port
...


(I haven't tested this code. It's free from a similar program, I 
made in the past.)
Play around with a very simple test, where you do it manually between 
2 REBOL sessions. This way you get a feel for it and can made your 
program to work.
server example:

listen-port: open/lines tcp://:8080
wait listen-port
p: first listen-port
file: load first p
close p
write/binary %file.r debase first file
close listen-port

client example:

p: open/lines tcp://127.0.0.1:8080
insert p remold [enbase read/binary %hokus-pokus.r]
close p
I just tried these examples, and they works. To send more files, 
you should loop the server from the wait to the write, both included.
Louis
7-Jun-2007
[8273]
Geomol, thanks!  I'll experiment with your examples, and report back. 
But it will be awhile, as I'm out of time right now.
Oldes
10-Jun-2007
[8274x3]
as current path-thru function is not working with queries and port 
numbers, and it's not part of core at all, what do you say about 
using this imporved version (which I'm already using for couple of 
years):

path-thru: func [
    "Return a path relative to the disk cache."
    url /local purl
][
    if file? url [return url]
    if not all [purl: decode-url url purl/host] [return none]

    if all [string? purl/target find purl/target #"?"] [replace purl/target 
    "?" "_query_"]
    rejoin [
        view-root/public slash
        purl/host

        either none? purl/port-id [""] [join "_atport_" purl/port-id] slash
        any [purl/path ""] any [purl/target ""]
    ]
]

so:

>> path-thru http://us.maps2.yimg.com/us.png.maps.yimg.com/png?v=3.52&t=m&x=3&y=0&z=16

== %/D/view/public/us.maps2.yimg.com/us.png.maps.yimg.com/png_query_v=3.52&t=m&x=3&y=0&z=16
aaaa.... this nasty Altme link bug... will it ever be fixed?
And it must be so easy to fix it... it looks that it would be enough 
to increase the Y-size ot the face which is used to cound the size 
of the text link (so it do not breaks)
btiffin
10-Jun-2007
[8277]
How many rebols have written language localization routines?

I'm toggling back and forth between external heaps and in-code strings
I've got a RebGUI widget...


lang-text {en "This is the english" fr "C'est francais" it "Don't 
know any italian"}

meaning a translator will have to get dirty in code edits (or send 
to coder) or use

text (lang "SomekindaKey")

where lang is some func that having read some file, selects the string 
key by lang type...
lang-type being buried somewhere in locale*


How often is a REBOL translator a non-programmer?  I find external 
text to be a pain when
coding.  But...it lets non-coders help with translations.


In particular, I only have about 10 or so screens that could be translated. 
 Ashley's

builtin localization nicely handles all the GUI stuff.  I'm leaning 
toward in-code strings.
[unknown: 9]
10-Jun-2007
[8278]
Qtask using a huge database for all languages...
btiffin
11-Jun-2007
[8279]
On the fly translation?  Or work by coders?  Or a text heap?  :)

I guess I'm just looking for advice, but I'm travelling down the 
in-code multi-language
string path.
Gabriele
11-Jun-2007
[8280x6]
my approach is: preprocess the code to identify values that need 
translations (not only strings, any value can be language-dependent)
so if you have     text "Some string"
you add     text #l "Some string"
and the preprocessor can create a nice .catalog file for you
then, you can use a gui tool to edit .catalog files.
http://www.colellachiara.com/soft/libs/locale.r
btiffin
11-Jun-2007
[8286]
Cool.  Thanks Gabriele.  I'll be relying on Ashley's RebGUI code 
for some of the
localization, but this looks like something to dig into.
Ashley
11-Jun-2007
[8287]
A key consideration is whether you want the translation(s) to be 
static (compile-time) or dynamic (run-time). Advantages and disadvantages 
to both approaches.
btiffin
11-Jun-2007
[8288]
Yeah, I toggle back and forth, but they'll be static this time.  
:)
Rebolek
11-Jun-2007
[8289]
some BIND expert, please, help me:

>> act: [add a b]
== [add a b]
>> for a 1 5 1 [for b 1 5 1 [do act]]
** Script Error: a has no value
** Where: do-body
** Near: add a b

There must be something easier than
>> for a 1 5 1 [for b 1 5 1 [do bind bind act 'a 'b]]
Sunanda
11-Jun-2007
[8290]
Is this simpler and the same effect?
    act: func [a b][add a b]
    for a 1 5 1 [for b 1 5 1 [act a b]]
Rebolek
11-Jun-2007
[8291]
hm, not exactly what I want because this is simplified, I have more 
variables than just 'a and 'b, but still useful.
btiffin
11-Jun-2007
[8292]
May or may not work for your needs

for a 1 5 1 [for b 1 5 1 bind act 'a]
Graham
11-Jun-2007
[8293]
Is there an async https protocol in the offing?
Gabriele
11-Jun-2007
[8294]
mine works with both http and https
Graham
11-Jun-2007
[8295]
is this the current release?