World: r3wp
[Core] Discuss core issues
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Gordon 8-May-2005 [1044] | Thanks Tomc; that should do it. |
Micha 9-May-2005 [1045x3] | how to decode this url ? |
input: uggc%2Fjungvfzlvc.pbz | |
output: http://whatismyip.com | |
Anton 9-May-2005 [1048] | rot13: func [s [string!] /local result top][ result: copy s repeat n length? s [ top: either s/:n >= #"a" [97][65] ; determine upper or lowercase if (i: s/:n - top) < 26 [ ; only 26 letters in alphabet affected i: i + 13 // 26 ; perform rot13 poke result n to-char top + i ; insert new letter ] ] result ] |
Gabriele 9-May-2005 [1049x5] | sunanda: i can only think of: |
>> index? find (as-binary a) xor as-binary b complement charset "^(00)" == 7 | |
though, i'm not sure it's an easy way, and it is probably overkillif a and b are "big". | |
another option would be to try with parse, though it's gonna boil down to some kind of loop anyway. | |
>> parse a [any [(char: b/1) char (b: next b)]] == false >> b == "45678" | |
Janeks 9-May-2005 [1054] | How to set correctly progress function for read-net? Or what causes following error and : >> myProgr: func [ tot bt ] [ print bt / tot ] >> read-net/progress to-url "http://maps.dnr.state.mn.us/cgi-bin/mapserv36?map=/usr/loca l/www/docs/mapserver_demos/tests36/expressions/test.map&map_counties_class_expression=(% 5bAREA%5d %3e 7577272785.15339)&layer=title&map_title_class_text=Counties+Larger+Tha n+Itasca+County&mode=map" :myProgr 0.425625 ** Script Error: not is missing its value argument ** Where: read-net ** Near: all [:callback size not callback size length? buffer data: true break] not data >> source read-net read-net: func [ {Read a file from the net (web). Update progress bar. Allow abort.} url [url!] /progress callback {Call func [total bytes] during transfer. Return true.} /local port buffer data size ][ vbug ['read-net url] if error? try [port: open/direct url] [return none] size: to-integer any [port/locals/headers/content-length 8000] buffer: make binary! size set-modes port/sub-port [lines: false binary: true no-wait: true] until [ if not data: wait [60 port/sub-port] [data: true break] if data: copy port/sub-port [append buffer data] all [:callback size not callback size length? buffer data: true break] not data ] close port if not data [buffer] ] >> |
Gabriele 9-May-2005 [1055] | is your callback function returning a value? i think it should return true normally, or false if you want to cancel the download. |
Allen 9-May-2005 [1056] | Use request-download as a guide. It has everything you need to know. you should be able to substitute read-thru with read-net if you wish. |
Janeks 10-May-2005 [1057x3] | O'k. My mistake are offen do not tell what is my target. So it is to get working status bar in a layout. As I understood it is possible by read-thru. |
Thanks Gabriele. It was the reason. But to continue regarding status bar functions fired by read-thru. Than it is a problem just to kBox/image: read-thru/progress myUrl :myProgr . It is possible just by using local file i.e. kBox/image: read-thru/to/progress myUrl %tmpImg.png :myProgr | |
BTW: How to insert newline in a post? | |
DideC 10-May-2005 [1060] | Click the "pen" icon just up to the input area (near color/ no color one) |
Janeks 10-May-2005 [1061] | Thanks! I am getting following parameters of myProgr: 3650 8000 7430 8000 9950 8000 13730 8000 15335 8000 19115 8000 22975 8000 26755 8000 30695 8000 34475 8000 38255 8000 42195 8000 46055 8000 49835 8000 53695 8000 55197 8000 55197 8000 How then to calculate data for progress bar ( decimal from 0 to 1 )? Or how to get total bytes? |
Allen 10-May-2005 [1062] | Janek. request-download has the example callback you need. View its source. here is a snippet. Where prog is the progressbar and stat is a label in your layout and stop is a value that controls that should be be set false outside of this func to start with, and can set to true via a cancel button to force a download to stop before completion. func [total bytes] [ prog/data: bytes / (max 1 total) stat/text: reform [bytes "bytes"] show [prog stat] not stop ] |
Janeks 11-May-2005 [1063] | Thanks Allen! The problem was so obvious that I did not think about it ;-) just it is impossible to know what size of image will be that is coming from a cgi process with many parameters. |
Allen 11-May-2005 [1064] | A easy job for REBOL... http://www.eyon.com/. I can't believe this tool needs to be 4mb zipped. |
Volker 12-May-2005 [1065] | i like this little function and cant find a good name. your: func [offset value] [ if value [value/:offset] ] usage: your 'facet get-style 'field its sometimes more readable IMHO than putting the interesting word far at the end of line. but i find no good name.. any suggestions? |
RebolJohn 12-May-2005 [1066] | Help peoples.. I have the following.. x: [a b c d] foreach y x [ set y make string! {} ] ;make them all empty strings. then I process/append info into the different groups a,b,c,d. Now, I want to write each string/list to a file of the same name. i.e. foreach y x [write to-file join y ".txt" ??GETVALUE?? y] Can someone clue me in on what I do at the ??GETVALUE?? position? Thanks peoples. |
Sunanda 12-May-2005 [1067x2] | foreach y x [print [y get y]] |
... so the missing ??getvalue?? is just get | |
Graham 12-May-2005 [1069x2] | How does one open up the serial port? I've tried open serial://port1/9600/8 and serial://port1/9600/8 and both give me errors .. |
this is in windows | |
Anton 12-May-2005 [1071x3] | Volker, in english, it seems better to write 'facet of face (where OF is the function in between) but we can't do that... How about TAKE ? ie. take 'facet face ; (read in english: "take 'facet from face") |
Graham, try a different port, maybe it's port2 that is mapped in your system. | |
modem: open/lines/no-wait/direct serial://port2/9600/8/none/1 ; from an example on rebol-list 2003-12-03 | |
Graham 12-May-2005 [1074] | I meant above that I also tried serial://com1/9600/8 ... |
Anton 13-May-2005 [1075] | Well, I was just able to do this with no error: >> port: open serial://port2/9600/8 >> close port |
Graham 13-May-2005 [1076x2] | wonder what's wrong with mine. |
I wonder if I have the serial printer attached as a windows printer and it's hogging the serial port. | |
Anton 13-May-2005 [1078] | Check whether it's enabled in device manager |
Graham 13-May-2005 [1079x2] | the serial port currently has a serial printer attached |
which is working. I am trying to send some commands to the printer | |
Anton 13-May-2005 [1081x2] | are you trying to communicate with the printer ? |
right ok. | |
Graham 13-May-2005 [1083] | yes |
Anton 13-May-2005 [1084] | You need something to see the status of all ports on your system to diagnose, I think, but it looks like, if rebol can't open it, that windows already has opened a port to it. |
Graham 13-May-2005 [1085x4] | yep, that was it. |
I removed the serial printer from the windows printers and now I can open the port | |
now, how do I send a page feed to the printer ... ? | |
That's 0c isn't it? | |
Anton 13-May-2005 [1089x2] | You could probably just disconnect the serial cable physically, then scan for hardware changes... can save time later on maybe.. |
Yep, looks like FormFeed (FF) is 0x0C | |
Graham 13-May-2005 [1091x2] | oh well, it doesn't do what I need it to do. |
tried insert port #{0c} but the paper won't feed :( | |
Anton 13-May-2005 [1093] | Maybe you need to terminate your commands.. ? See if you can find the language that the printer understands. |
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