World: r3wp
[Core] Discuss core issues
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Chris 5-Jun-2007 [8237] | I've made a small change to the %filtered-import.r script -- it should now properly handle the 'opt modifier: >> import [][test: opt string!] == [test none] >> import [test ""][test: opt string!] == [test none] >> import [test ""][test: string!] == none This last one could be considered unexpected? |
Louis 6-Jun-2007 [8238x2] | I'm trying to learn how to make tcp servers, reading this rebol doc: file:///C:/SDK/docs/core23/rebolcore-13.html#section-14 Why am I getting this error: >> listen: open tcp://:8001 ** Access Error: Error opening socket listen port ** Near: listen: open tcp://:8001 Turning the firewall off does not help. |
This seems to work: >> listen: open tcp://localhost:8001 But the docs specifically say: Notice that you do not supply a host name, only a port number. This type of port is called a listen port. The system now accepts connections on port number 8001. Is this a mistake in the docs? | |
Sunanda 6-Jun-2007 [8240] | Henrik -- I think Gabriele said recently that REBOL *never* hands back memory to the opsys. So, although, REBOL's stats are reporting in-use memory, they are not telling you all the still reserved memory. I think that explains your observations. |
sqlab 6-Jun-2007 [8241x2] | Lous: your port is already opened either by an opther application or by this rebol instance as you can connect to. So either use an other port number or close your listen socket before opening again |
sorry Lous --> Louis | |
Henrik 6-Jun-2007 [8243] | sunanda, I see, thanks |
Will 6-Jun-2007 [8244x2] | anyone else thinks this would be useful? reduce 'abc/'def/(1 + 2) instead of to path! reduce ['abc 'def (1 + 2)] |
but you can't do abc/'def/(1 + 2) so maybe a new repath function: repath abc/'def/(1 + 2) ? | |
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. |
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