[REBOL] Object based? Re:
[EMAIL PROTECTED] wrote: > I was wondering if someone could provide me with a quick summary > regarding what is meant by Rebol being "object based" but not "object > oriented"? Has first-class objects, i.e. has (limited) encapsulation via use and other scope trix, has developer-directed delegation / embedding, has no runtime-supported inheritance. OOP == inheritance, often class-based. "Object-based" usually == encapsulation, arbitrary datatype support, some notion of lifecycle, delegation, but no inheritance / automagic type-based or graph-based dispatching. Possibly Rebol could be considered "prototype-based," which (if anything) is how I would classify Rebol on the "object language patterns" scale. Note to the weary: parents are shared parts of objects. Prototypes are a superset of class-based inheritance; being "object-based" is actually a superset of being traditionally "object-oriented." Cf. the Self Papers. (Google it.) For the truly ambitious / warped / lifeless ;-) see Abadi & Cardelli's object calculus, http://www.luca.demon.co.uk/TheoryOfObjects.html or similar books / papers / works that cite them. Which, if anything, gives the best academic / theoretic supporting argument to Carl's intuitive argument that (paraphrasing) objects just aren't where it's at. Turns out lambda calculus and object calculus with types are *really, really* hard to reconcile. My money's on the functional side, so Rebol and Scheme and (ahem, ick, typing by madmen) even Haskell win big. BTW: language archaeologists and other weirdos ;-) (hey I'm one too!) should dig up anything they can find on Jon Blow's "FMPL" language and implementations from circa 91-92. Eerie similarity to Rebol in many ways, but basically an event-driven MUD / network application language based on and syntactically related to Rebol. Pre-Rebol, this language did the best job I've seen of reconciling functional programming and objects. $0.02, jb > Thanks in advance. > > --- > Robert Marier NP. (complete.) ;-)
[REBOL] Launching another URL
I'd like to launch another URL from a CGI script. I could have the CGI program write a META tag like: http://foo.bar/blatz.r"> Is there a better way to do this using rebol-specific features. Thanks -Tim
[REBOL] Object based?
I was wondering if someone could provide me with a quick summary regarding what is meant by Rebol being "object based" but not "object oriented"? Thanks in advance. --- Robert Marier
[REBOL] REBOL: THE OFFICIAL GUIDE
REBOLs... REBOL: THE OFFICIAL GUIDE, the first commercial book about the REBOL language, is now at the printers! You can check the contents and read a sample chapter at REBOL Press Online, http://www.REBOLpress.com. Special Offer: Order your advance copy of REBOL: THE OFFICIAL GUIDE (with CD) directly from REBOL Press Online and receive an exclusive, limited-edition DESIGNER'S TIP SHEET written and signed by REBOL's Designer, Carl Sassenrath! Not available in bookstores or through any other source. It includes numerous insider tips that make REBOL scripts easier to write and more powerful to use. Thanks for your patience! REBOL: THE OFFICIAL GUIDE to the REBOLution! -- Danny Ramsey, Publisher, REBOL Press The Official Source for REBOL Books http://www.REBOLpress.com
[REBOL] Netscape vs. Explorer ??? Re:(2)
The comma is not the problem, Allen. The same thing happens on all several hundred of my titles; i.e. works fine using INTERNET EXPLORER but only the first word using Netscape. Netscape just is funky in passing data (sigh). While I am not a Microsoft fan by any means, IE and REBOL work together very nicely; Netscape seems to fight it. --Ralph > Is there any way you can avoid the comma? > Some Options.. > 1. Encode it, and see if MSIE and NN can still handle it. > 2. Or else strip it and modify your bookord.r to deal with all titles > without the puctuation. > 3 Use ISBN or a cat number to pass to bookord.r, this avoids the whole > puctuation issue > > Cheers, > > Allen K > > - Original Message - > From: <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Friday, July 07, 2000 7:31 AM > Subject: [REBOL] Netscape vs. Explorer ??? > > > > > > something weird happening? > > > > I use a URL like so to pass info to a REBOL script: > > > > > https://abooks.safeserver.com/cgi-bin/bookord.r?Behold,%20The%20Ca mels%20Wer > e%20Coming!?Dr.%20Ralph%20Sexton,%20Sr.?1-57090-055-8?Mountain%20ChurchT?9.9 > 5 > > > In the script, I use: > > orderdata: system/script/args > > parse orderdata/1 [some [to "\" (remove find orderdata/1 "\")] to end] > > order: parse/all trim orderdata/1 "?" > > and running Internet Explorer, my order taking script works beautifully. But > in Netscape 4.03 (at least), the only info I get is the first word of the > title (would be "Behold" above). > > Could anyone point me to a solution? > > Thanks, > > --Ralph Roberts > > > > >
[REBOL] Com port parameters. Setting How? Re:(3)
The correct IP is: http://www.aball.de/~gotti/tcptoser.html > I found another (and smallest) serial to tcp/ip program at > http://www.emtec.com > > > > My understanding is you cannot access the com port directly from Rebol. > > However, I used IPComserver a program by http://www.iox.co.za to > essentially > > give the Com port a tcp/ip port. > > Then I could use Rebol with tcp/ip through IPComserver to talk to my > device. > > > > Brett. > > > > - Original Message - > > > > > What is the method for setting the com port parameters so I may > > > interface to a GPS unit. > > > Specifically com2 4800 8N1. > > > Thanks in advance! > > > > > > Sincerely, > > > [EMAIL PROTECTED] > > > > > >
[REBOL] serial to tcp bridge - "404" at emtec. Re:
Oops, I Am I blind and slow http://www.aball.de/~gotti/tcptoser.html > File Not Found (aka: 404) > > I went to emtec and found nothing that remotely looks like a bridge between > serial and tcp communications. > Am I blind or slow? > > Please be more specific. > > Thanks. > > [EMAIL PROTECTED] wrote: > > > I found another (and smallest) serial to tcp/ip program at > > http://www.emtec.com > > > > > My understanding is you cannot access the com port directly from Rebol. > > > However, I used IPComserver a program by http://www.iox.co.za to > > essentially > > > give the Com port a tcp/ip port. > > > Then I could use Rebol with tcp/ip through IPComserver to talk to my > > device. > > > > > > Brett. > > > > > > - Original Message - > > > > > > > What is the method for setting the com port parameters so I may > > > > interface to a GPS unit. > > > > Specifically com2 4800 8N1. > > > > Thanks in advance! > > > > > > > > Sincerely, > > > > [EMAIL PROTECTED] > > > > > > > >
[REBOL] An experiment with RTF Re:(3)
Thanks for the posts. I'm downloading the Abisource to check it out. I really liked the links from hendrik-jan and Ryan's news_site. They are excellent examples of new ways to publish. hendrik-jan, You mentioned you may have some other link re: content/presentation separation. If it's not too much trouble I'd be interested in them. Brett.
[REBOL] Previous version Re:(3)
Quoting [EMAIL PROTECTED] ([EMAIL PROTECTED]): > Hi, > > >Then they have some other problems, Rebol/core for Linux libc6 works > >fine for me. It could be the old thing with mixing libc5 and libc6, > >though. > > They run libc6 by default. If the malfunctioning rebol is still there do % ldd `which rebol` And see that it gives (about) the following output: libm.so.6 => /lib/libm.so.6 (0x4001e000) libtermcap.so.2 => /lib/libtermcap.so.2 (0x4003b000) libc.so.6 => /lib/libc.so.6 (0x40079000) /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x4000) If there is some kind of error or you can see entry of libc.so.5 then the problem is found (and should be easily fixed). Otherwise I could send you the 2.2 version of REBOL if that is not found already. If the problem really would be the incompatible librarys I would like to see this problem and a solution to it added to the installation notes. All the Unix/Linux administrators are not that good anymore (including me...) > > > they copied over the old version > > > >What kind of an administrator copies over old and working versions. > >D'oh! > > They don't normally do it, they said that they trusted Rebol. Good, I don't trust even Rebol (Sorry guys at Rebol Tech. :). Yours, Jussi -- Jussi HagmanCS in Åbo Akademi University Studentbyn 4 D 33 [EMAIL PROTECTED] 20540 Åbo [EMAIL PROTECTED] Finland
[REBOL] serial to tcp bridge - "404" at emtec.
File Not Found (aka: 404) I went to emtec and found nothing that remotely looks like a bridge between serial and tcp communications. Am I blind or slow? Please be more specific. Thanks. [EMAIL PROTECTED] wrote: > I found another (and smallest) serial to tcp/ip program at > http://www.emtec.com > > > My understanding is you cannot access the com port directly from Rebol. > > However, I used IPComserver a program by http://www.iox.co.za to > essentially > > give the Com port a tcp/ip port. > > Then I could use Rebol with tcp/ip through IPComserver to talk to my > device. > > > > Brett. > > > > - Original Message - > > > > > What is the method for setting the com port parameters so I may > > > interface to a GPS unit. > > > Specifically com2 4800 8N1. > > > Thanks in advance! > > > > > > Sincerely, > > > [EMAIL PROTECTED] > > > > >
[REBOL] Changing relative paths to absolute ones. Re:(3)
Hi Bruno, take a really close look at the source you are quoting: >>parse page: read http://www.server [ some [thru "SRC=^"" here: >>(insert here "http://www.server")] to end ] and compare it to what you are doing: >parsepage: read http://www.no.com.br/servlets/ specifically note parse page: vs. parsepage: See the missing space between parse and page? The source you are quoting is submitting the result of reading the Webpage to the parse function, after it has set the word page to point at the Webpage that was read. In contrast you are not using the parse function at all, and instead you are setting a word called parsepage to point at the Web page you read. There are other details that you should consider. But this should get you started. At 06:05 PM 7/6/00 -0300, you wrote: >Em Thursday, July 06 2000, 17:39:01, ([EMAIL PROTECTED]) disse: > > >>parse page: read http://www.server [ some [thru "SRC=^"" here: >>(insert here "http://www.server")] to end ] > >Thanks for your answer. I tried that and it didn't seem to work, but I'm not >even sure if i did the right thing. Here is how my script looks like: > >REBOL [ >Title: "Page Sender" >] > >header: make system/standard/email [ >To: [EMAIL PROTECTED] >From: [EMAIL PROTECTED] >Reply-To: [EMAIL PROTECTED] >Subject: "Teste do NO. via REBOL!" >Organization: "Just a Test" >X-mailer: [REBOL] >MIME-Version: 1.0 >Content-Type: "text/html" >] > >parsepage: read http://www.no.com.br/servlets/ >newstorm.notitia.apresentacao.ServletDeSecao [ >some [ >thru "src=^"" here: (insert here "http://www.no.com.br") >] >to end >] > >send/header [EMAIL PROTECTED] parsepage header > >Is it correct? > >-Bruno > > > ;- Elan [ : - ) ]
[REBOL] Netscape vs. Explorer ??? Re:
Hi Ralph, Is there any way you can avoid the comma? Some Options.. 1. Encode it, and see if MSIE and NN can still handle it. 2. Or else strip it and modify your bookord.r to deal with all titles without the puctuation. 3 Use ISBN or a cat number to pass to bookord.r, this avoids the whole puctuation issue Cheers, Allen K - Original Message - From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, July 07, 2000 7:31 AM Subject: [REBOL] Netscape vs. Explorer ??? > > something weird happening? > > I use a URL like so to pass info to a REBOL script: > > https://abooks.safeserver.com/cgi-bin/bookord.r?Behold,%20The%20Camels%20Wer > e%20Coming!?Dr.%20Ralph%20Sexton,%20Sr.?1-57090-055-8?Mountain%20ChurchT?9.9 > 5 > > > In the script, I use: > > orderdata: system/script/args > > parse orderdata/1 [some [to "\" (remove find orderdata/1 "\")] to end] > > order: parse/all trim orderdata/1 "?" > > and running Internet Explorer, my order taking script works beautifully. But > in Netscape 4.03 (at least), the only info I get is the first word of the > title (would be "Behold" above). > > Could anyone point me to a solution? > > Thanks, > > --Ralph Roberts > > > > >
[REBOL] REBOL list also archived at eScribe
Beginning today, the REBOL discussion list is also being archived at eScribe. You can see the threads beginning to build at... http://www.escribe.com/internet/rebol/index.html Of course, the archive only dates back to July 6, 2000. 8-) I went to the effort of putting a list archive on eScribe simply because it is not a REBOL-specific list archive site. This way, REBOL may gain more exposure. -Ryan
[REBOL] Previous version Re:(2)
Hi, >Then they have some other problems, Rebol/core for Linux libc6 works >fine for me. It could be the old thing with mixing libc5 and libc6, >though. They run libc6 by default. > > they copied over the old version > >What kind of an administrator copies over old and working versions. >D'oh! They don't normally do it, they said that they trusted Rebol. All the best, -- Malcolm Campbell [EMAIL PROTECTED] FreesiteUK - http://www.freesiteuk.com The UK based searchable web directory of free internet services. The content of this email should not be reproduced without the consent of the author, please ask permission before quoting. This email may contain information that is confidential, if you are not the mentioned recipient then please delete this file.
[REBOL] Browser? Re:(3)
Hi Pete In order for the reb page to work, the PUBLIC subdirectory of the /View home path on your machine must exist before the reb page is accessed. You may need to create it manually. HTH -Larry - Original Message - From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, July 06, 2000 2:00 PM Subject: [REBOL] Browser? Re:(2) > [EMAIL PROTECTED] wrote: > > > > > > > REBOL [] > > do http://www.2b1.de/ > > >> do http://www.2b1.de/ > ** Access Error: Cannot make directory /c/Program > Files/REBOL/View/public/www.2b1.de/. > ** Where: m-dir path return path > >> > > ??? > > -- > Pete Wason|"LWATPLOTG"|[EMAIL PROTECTED]|[EMAIL PROTECTED]|CUCUG|TA|PHX >
[REBOL] Changing relative paths to absolute ones. Re:(4)
Em Thursday, July 06 2000, 18:33:31, ([EMAIL PROTECTED]) disse: >> Note that I'm fetching the page with read http://www.server so all I got >> is the HTML file. In this file, paths to images are relative, and as I'm >> sending this page to another people, I have to make than absolute >> (prefixing http:// www.server to the path). > >Sorry, I responded too quickly. Shortly after I responded I realized what >you were really asking. So, will you help me? :) >> >/boot/home/web/domain/item.jpg >> >> Using BeOS too? ;) > >But, of course. 8-) Hope they release Rebol/View for BeOS soon... -Bruno
[REBOL] Netscape vs. Explorer ???
something weird happening? I use a URL like so to pass info to a REBOL script: https://abooks.safeserver.com/cgi-bin/bookord.r?Behold,%20The%20Camels%20Wer e%20Coming!?Dr.%20Ralph%20Sexton,%20Sr.?1-57090-055-8?Mountain%20Church?9.9 5 In the script, I use: orderdata: system/script/args parse orderdata/1 [some [to "\" (remove find orderdata/1 "\")] to end] order: parse/all trim orderdata/1 "?" and running Internet Explorer, my order taking script works beautifully. But in Netscape 4.03 (at least), the only info I get is the first word of the title (would be "Behold" above). Could anyone point me to a solution? Thanks, --Ralph Roberts
[REBOL] one more time Re:(2)
> > What version of libtermcap does your Linux box have installed? > (Look in /lib) > > If you don't have a file or symlink named libtermcap.so.2, you can > *probably* make a symlink with that name to whatever version of > libtermcap you have installed. > Howdy guys, That was it. I use Debian, and Debian doesn't use libtermcap, but libncurses. I symlinked libncurses to what REBOL was looking for, libtermcap.so.2. It works...ta d. Thanks! -- -tom
[REBOL] Changing relative paths to absolute ones. Re:(3)
> Note that I'm fetching the page with read http://www.server so all I got > is the HTML file. In this file, paths to images are relative, and as I'm > sending this page to another people, I have to make than absolute > (prefixing http:// www.server to the path). Sorry, I responded too quickly. Shortly after I responded I realized what you were really asking. > >/boot/home/web/domain/item.jpg > > Using BeOS too? ;) But, of course. 8-)
[REBOL] Changing relative paths to absolute ones. Re:(2)
Em Thursday, July 06 2000, 17:40:16, ([EMAIL PROTECTED]) disse: >The absolute path to your Web directory does not involve the http url. > >For example, the path to an item in your Web directory may SEEM to be... > >http://www.domain.dom/item.jpg Note that I'm fetching the page with read http://www.server so all I got is the HTML file. In this file, paths to images are relative, and as I'm sending this page to another people, I have to make than absolute (prefixing http:// www.server to the path). >...when in fact the real path may be something like... > >/boot/home/web/domain/item.jpg Using BeOS too? ;) >If you are using a Web hosting service, ask them what the absolute path is >to your Web directory. I am the web hosting server. :) I'm using a ServLet that only generates relative references, so it would be easier to do the conversion in the REBOl script than in the Servlet itself. Thanks anyway. -Bruno
[REBOL] Changing relative paths to absolute ones. Re:(2)
Em Thursday, July 06 2000, 17:39:01, ([EMAIL PROTECTED]) disse: >parse page: read http://www.server [ some [thru "SRC=^"" here: >(insert here "http://www.server")] to end ] Thanks for your answer. I tried that and it didn't seem to work, but I'm not even sure if i did the right thing. Here is how my script looks like: REBOL [ Title: "Page Sender" ] header: make system/standard/email [ To: [EMAIL PROTECTED] From: [EMAIL PROTECTED] Reply-To: [EMAIL PROTECTED] Subject: "Teste do NO. via REBOL!" Organization: "Just a Test" X-mailer: [REBOL] MIME-Version: 1.0 Content-Type: "text/html" ] parsepage: read http://www.no.com.br/servlets/ newstorm.notitia.apresentacao.ServletDeSecao [ some [ thru "src=^"" here: (insert here "http://www.no.com.br") ] to end ] send/header [EMAIL PROTECTED] parsepage header Is it correct? -Bruno
[REBOL] Browser? Re:(2)
[EMAIL PROTECTED] wrote: > > > REBOL [] > do http://www.2b1.de/ >> do http://www.2b1.de/ ** Access Error: Cannot make directory /c/Program Files/REBOL/View/public/www.2b1.de/. ** Where: m-dir path return path >> ??? -- Pete Wason|"LWATPLOTG"|[EMAIL PROTECTED]|[EMAIL PROTECTED]|CUCUG|TA|PHX
[REBOL] Previous version Re:
Quoting [EMAIL PROTECTED] ([EMAIL PROTECTED]): > Hi, > > Has anyone got the previous version of Rebol/core for Linux libc6, I asked > my ISP to install the new version on their servers, unfortunately the new > version isn't working Then they have some other problems, Rebol/core for Linux libc6 works fine for me. It could be the old thing with mixing libc5 and libc6, though. > they copied over the old version What kind of an administrator copies over old and working versions. D'oh! -- Jussi HagmanCS in Åbo Akademi University Studentbyn 4 D 33 [EMAIL PROTECTED] 20540 Åbo [EMAIL PROTECTED] Finland
[REBOL] Changing relative paths to absolute ones. Re:
The absolute path to your Web directory does not involve the http url. For example, the path to an item in your Web directory may SEEM to be... http://www.domain.dom/item.jpg ...when in fact the real path may be something like... /boot/home/web/domain/item.jpg If you are using a Web hosting service, ask them what the absolute path is to your Web directory. -Ryan > Hello. > > I have been monitoring the progress of REBOL since its first release > but > only now I will start to use it to do something usefull. I created a > simple script to read a web page and to send it to an email address (send > user@host read http://www.server). The problem is that there are lots of > relative references in this page (IMG SRC="/somedir/file.gif") and I need > to change all of these references to an absolute path (IMG > SRC="http://www.server/ somedir/file.gif"). > > I think the problem would be solved if I search for all =" and change > it > to ="http://www.server . > > How can I do that? Note that I didn't even understood the REBOL syntax > > yet. :) > > Thanks. > > -Bruno > >
[REBOL] Changing relative paths to absolute ones. Re:
parse page: read http://www.server [ some [thru "SRC=^"" here: (insert here "http://www.server")] to end ] ; not tested -z --- [EMAIL PROTECTED] wrote: > Hello. > > I have been monitoring the progress of REBOL since its first > release but > only now I will start to use it to do something usefull. I created > a simple > script to read a web page and to send it to an email address (send > user@host > read http://www.server). The problem is that there are lots of > relative > references in this page (IMG SRC="/somedir/file.gif") and I need to > change > all of these references to an absolute path (IMG > SRC="http://www.server/ > somedir/file.gif"). > > I think the problem would be solved if I search for all =" and > change it > to ="http://www.server . > > How can I do that? Note that I didn't even understood the REBOL > syntax > yet. :) > > Thanks. > > -Bruno > > __ Do You Yahoo!? Send instant messages & get email alerts with Yahoo! Messenger. http://im.yahoo.com/
[REBOL] Com port parameters. Setting How? Re:(2)
I found another (and smallest) serial to tcp/ip program at http://www.emtec.com > My understanding is you cannot access the com port directly from Rebol. > However, I used IPComserver a program by http://www.iox.co.za to essentially > give the Com port a tcp/ip port. > Then I could use Rebol with tcp/ip through IPComserver to talk to my device. > > Brett. > > - Original Message - > > > What is the method for setting the com port parameters so I may > > interface to a GPS unit. > > Specifically com2 4800 8N1. > > Thanks in advance! > > > > Sincerely, > > [EMAIL PROTECTED] > > >
[REBOL] Changing relative paths to absolute ones.
Hello. I have been monitoring the progress of REBOL since its first release but only now I will start to use it to do something usefull. I created a simple script to read a web page and to send it to an email address (send user@host read http://www.server). The problem is that there are lots of relative references in this page (IMG SRC="/somedir/file.gif") and I need to change all of these references to an absolute path (IMG SRC="http://www.server/ somedir/file.gif"). I think the problem would be solved if I search for all =" and change it to ="http://www.server . How can I do that? Note that I didn't even understood the REBOL syntax yet. :) Thanks. -Bruno
[REBOL] Does rebol --do "print 123" for e.g. work for ya? Re:(2)
[EMAIL PROTECTED] wrote: > Hi Petr, > > works fine for me. > > I can duplicate your error if I leave away the surrounding "", i.e. if > instead of > > rebol --do "print 123" > > I enter > > rebol --do print 123 > What about following complicated registry entry? ""d:\REBOL\View\rebol.exe" -q "%1"" :-) Well, will look into it once I get to my work at another rebol powered computer :-) Thanks anyway, -pekr- > > ;- Elan [ : - ) ]
[REBOL] Big Brother Re:
On 06-Jul-00, [EMAIL PROTECTED] wrote: > The rebol side of the Big Brother discussion is interesting, Yes, I was pleased that someone finally released a web cam Viewer. I'd love to see Mr Mourad's program expanded to include many more features, such as a site selection scroll list & multi-pictures, selectable refresh rates, etc. > but i am very sorry to hear the words Big Brother again! ... > Poor US citizens, > on behalf of the Dutch, I apologize for this export product. > (the apologies are extended to the Spanish, the Germans and all other > people living in countries who have bought the concept) Don't worry, Hendrik-Jan, US TV studios have foisted many worse programs on the rest of the world. There are no boundries for bad taste. It's pay-back time! -- ---===///||| Donald Dalley |||\\\===--- The World of AmiBroker Support http://webhome.idirect.com/~ddalley UIN/ICQ#: 65203020
[REBOL] one more time Re:(2)
[EMAIL PROTECTED] wrote: > > I'm stumped. Why do I get this with REBOL 2.3.0.4.2: > > > > error in loading shared libraries: libtermcap.so.2: cannot open shared > > object file: No such file or directory > > > > and not with 2.2.0.4.2? > > Hi Tom, > > What version of libtermcap does your Linux box have installed? > (Look in /lib) > > If you don't have a file or symlink named libtermcap.so.2, you can > *probably* make a symlink with that name to whatever version of > libtermcap you have installed. what about trying "ldd rebol" to see the dependencies? It helped me in problems identification with libc versioning ... Cheers, -pekr- > > > Cheers, > Kev > > > Kevin McKinnon, System/Network Administrator [EMAIL PROTECTED] > Sunshine Communications http://www.sunshinecable.com > > PGP Public Key: http://www.dockmaster.net/pgp.html PGP 6.0 www.pgp.com
[REBOL] one more time Re:
Hi Tom, yes, I found that, too. rebol _once_again_ uses libtermcap, instead of libncurses, it's the only change between 2.2 and 2.3 regarding libraries. Debian/Gnu Linux on the other hand regards libtermcap as outdated, and only supports a libc5 version of libtermcap. SO, what to do now? libncurses is able to act like libtermcap, so what I did on my system: I created libtermcap.so.2 as a link to libncurses ... that works. libtermcap.so.2 -> /lib/libncurses.so.3.4 regards, Ingo Once upon a time [EMAIL PROTECTED] spoketh thus: > one more time > > howdy again, > > I'm stumped. Why do I get this with REBOL 2.3.0.4.2: > > error in loading shared libraries: libtermcap.so.2: cannot open shared > object file: No such file or directory > > and not with 2.2.0.4.2? > > I ran "update", and I'm using the libc6 version... > does anyone have a clue? > > Thanks in advance, > > -tom > -- do http://www.2b1.de/ _ ._ ingo@)|_ /| _| _ ingo@| |(_|o(_)| (_| ._| ._|
[REBOL] Find speed Re:(3)
Hi Ladislav,
your test function is responsible for the results you get, not the hash!
The critical code in the time-blk function is
>start: now
>loop :count :block
>finish: now
When you test the hash function, your timing function (time-blk) loops over
the block:
>[
>random/seed 1
>c: 0
>blk: make hash! []
>repeat i n [
>d: random m
>if not find blk d [
>c: c + 1
>insert blk d
>]
>]
>] 0.05
This block includes the CREATION of the hash and INSERTING items into the
hash. Certainly creating a hash and inserting items into the hash is not
the same thing as searching in a hash and the time required to CREATE the
data structure and INSERT items into the data structure should not be part
of the value reported for the time required to SEARCH in the data structure.
Inserting an element into a hash is by nature of hashing algorithms far
more time consuming than inserting an element into a block. Hashes are
optimized for locating an element at the penalty of consuming more time for
insertion. To correctly identify the time it takes to locate an element in
a hash, you must separate the insertion of the element into the hash from
the time you calculate to retrieve the element in the hash.
If you separate insertion from the search in a hash, you must do the same
for the blocks as well. Only then will you be able to compare values that
reflect how long it takes to SEARCH in the different series types you are
testing!
At 10:46 AM 7/6/00 +0200, you wrote:
>Hi,
>
>regarding memoizing. There is a class of functions, that must use
>some kind of memoizing to work at all, I think. The number of the
>possibilities for parameters does not matter, you can store only
>important results (depending on what you consider important - eg.
>expensive or recent results...)
>
>Because I used a non-real-life example for testing, here is
>something more adequate for memoizing purposes:
>
>Block/find time: 14.5 count: 7771
>Block/bfind time: 5.875 count: 7771
>Hash/find time: 28.5 count: 7771
>
>The source code:
>
>REBOL[
>Title: "Seconds"
>Author: "Ladislav Mecir"
>Email: [EMAIL PROTECTED]
>Date: 19/5/1999
>File: %seconds.r
>]
>
>seconds: function [
>{Compute difference between dates in seconds}
>a [date!] "first date"
>b [date!] "second date"
>] [diff] [
>diff: b - a
>diff: 24 * diff + b/time/hour - a/time/hour +
>b/zone/hour - a/zone/hour
>diff: 60 * diff + b/time/minute - a/time/minute
>60 * diff + b/time/second - a/time/second
>]
>
>
>REBOL[
>Title: "Time-block"
>Author: "Ladislav Mecir"
>E-mail: [EMAIL PROTECTED]
>Date: 19/5/1999
>File: %timblk.r
>Purpose: {
>Measure time of a block execution with given relative
>accuracy.
>This function can even time the execution of the empty
>block.
>Suggested values for accuracy are: 0.05 to 0.30.
>Accuracy better than 0.05 may not be reachable,
>accuracy worse than 0.30 may not be useful.
>}
>]
>
>include %seconds.r
>
>time-block: function [
>"Time a block."
>block [block!]
>accuracy [decimal!]
>/verbose
>] [
>guess count lower upper start finish result
>] [
>if verbose [print ["Timing a block:" block]]
>guess: 0
>count: 1
>lower: 1 - :accuracy
>upper: 1 + :accuracy
>while [
>start: now
>loop :count :block
>finish: now
>result: (seconds start finish) / count
>if verbose [
>prin "Iterations: "
>prin count
>prin ". Time/iteration: "
>prin result
>prin " seconds.^/"
>]
>any [
>result <= 0
>guess < (result * lower)
>guess > (result * upper)
>]
>][
>guess: result
>count: count * 2
>]
>result
>]
>
>{
>Example:
>
>time-block [] 0,05
>}
>
>Rebol []
>
>bfind: func [
>blk [block!]
>value
>/local d u m
>] [
>d: 1
>u: length? blk
>while [(m: to integer! (d + u) / 2) > d] [
>either (pick blk m) <= value [d: m] [u: m]
>]
>either (pick blk u) <= value [u] [d]
>]
>
>include %timblk.r
>
>n: 8192 ; the test size
>m: 10 * n ; random number range
>prin "Block/find time: "
>prin time-block [
>random/seed 1
>c: 0
>blk: copy []
>repeat i n [
>d: random m
>if not find blk d [
>c: c + 1
>append blk d
>]
>]
>] 0.05
>prin " count: "
>print c
>prin "Block/bfind time: "
>prin time-block [
>random/seed 1
>c: 0
>blk: copy []
>repeat i n [
>d: random m
>either empty? blk [
>c: c + 1
>insert blk d
>] [
>bf: bfind blk d
>if not (pick blk bf) = d [
>c: c + 1
>insert skip blk either (pick blk bf) > d [
>bf - 1
>] [
>
[REBOL] An experiment with RTF Re:
Hi Brett, would you consider using AbiWord? It's a beautiful, open source, portable word processor (still in prelease, but it rocks). The advantage is that uses an XML based page description language that can easily be parsed using REBOL's XML parser and then converted into the appropriate HTML. you can download a copy at http://www.abisource.com Advantages: 1. AbiWord has a relatively small footprint (compared to MS Word). It loads much faster. 2. You can download the source and you could conceivably add a button that a) saves the current file, b) starts up REBOL and has REBOL parse the saved file, and c) posts the file to the Web site. 3. AbiWord is similar enough to MS Word that I would think that anyone who can use MS Word will be able to figure out AbiWord quite easily. 4. Big plus: You do not place your solution in the hands of a 3rd party. I.e. you control what your software does. With MS Word, if Microsoft decides to change something about MS Word, and you happen to rely on that feature, and your sister's company wants to use the new improved version of MS Word, they will have to keep two versions of MS Word around, which may cause confusion, take up alot of hard drive space, and conceivably occassionally crash the computer. I think we should adopt AbiWord as standard front end for text and XML oriented interactive solutions that include REBOL as a scripting component. At 07:25 PM 7/6/00 +1000, you wrote: >Hi, > >Again I'm re-impressed with rebol. I spent yesterday and today parsing Rich >Text Format files with rebol and it works a treat. >Although I only got as far as loading RTF into Rebol blocks and words - but >I'm still impressed. > >The situation I have is that I'm going to do up a web-site for my sister's >company. I want to be able to implement a consistent style for the site and >yet have my sister or her staff do the updates. Since they are not familiar >with Web pages (and I don't think they should have to be), I was looking for >some sort of automated process. I've done a lot of research on the web and I >haven't seen a simple effective solution to this problem - the grail of >content + presentation. > >I'd appreciate any comments on other peoples experiences with this sort of >thing. > >I hope others may yet find a use for the code I've generated so far, so I >placed it at rebol.org. And if you can use it let me know - I need the >satisfaction :) > >The script can be found at http://www.rebol.org/general/rtf-tools.r > >Brett Handley > > > ;- Elan [ : - ) ]
[REBOL] Does rebol --do "print 123" for e.g. work for ya? Re:
Hi Petr, works fine for me. I can duplicate your error if I leave away the surrounding "", i.e. if instead of rebol --do "print 123" I enter rebol --do print 123 ;- Elan [ : - ) ]
[REBOL] one more time Re:
Hi Tom, to make things a little more interesting, under Redhat Linux 2.2.15 I am having absolutely no problems. Which Linux distribution are you using? At 12:59 PM 7/6/00 +0100, you wrote: >one more time > >howdy again, > >I'm stumped. Why do I get this with REBOL 2.3.0.4.2: > >error in loading shared libraries: libtermcap.so.2: cannot open shared >object file: No such file or directory > >and not with 2.2.0.4.2? > >I ran "update", and I'm using the libc6 version... >does anyone have a clue? > >Thanks in advance, > >-tom > > > ;- Elan [ : - ) ]
[REBOL] one more time Re:
> I'm stumped. Why do I get this with REBOL 2.3.0.4.2: > > error in loading shared libraries: libtermcap.so.2: cannot open shared > object file: No such file or directory > > and not with 2.2.0.4.2? Hi Tom, What version of libtermcap does your Linux box have installed? (Look in /lib) If you don't have a file or symlink named libtermcap.so.2, you can *probably* make a symlink with that name to whatever version of libtermcap you have installed. Cheers, Kev Kevin McKinnon, System/Network Administrator [EMAIL PROTECTED] Sunshine Communications http://www.sunshinecable.com PGP Public Key: http://www.dockmaster.net/pgp.html PGP 6.0 www.pgp.com
[REBOL] one more time
one more time howdy again, I'm stumped. Why do I get this with REBOL 2.3.0.4.2: error in loading shared libraries: libtermcap.so.2: cannot open shared object file: No such file or directory and not with 2.2.0.4.2? I ran "update", and I'm using the libc6 version... does anyone have a clue? Thanks in advance, -tom
[REBOL] Does rebol --do "print 123" for e.g. work for ya? Re:(2)
[EMAIL PROTECTED] wrote: > Hello [EMAIL PROTECTED] > > On 06-Jul-00, You wrote: > > > I am just curious if running rebol with command line parameters work for > > you? I get following error: > > >> REBOL --do "print 123" > > works fine for > REBOL/Core 2.3.0.1.1 22-Jun-2000 ; i.e. Amiga 68020+ version > > As does DEMO disabled > REBOL/View 0.9.9.1.1 1-Jun-2000 ;-"- > > Maybe You're trying /View with Demo enabled? > > No time to test this by myself > (RAM Disk too full of other REBOL stuff to use GUI ;-) Hmm, now I remember - it works for me at my work. So there is something wrong with my Win machine at home. Noone of /Command, /Core, /View works for me. Maybe some registry issue? Hmm ... -pekr- > > > Regards > >Christian >[EMAIL PROTECTED]
[REBOL] Com port parameters. Re:(2)
[EMAIL PROTECTED] wrote: > Thanks for the pointer Brett. > > Seems a little odd that a "messaging system" would not be inclined to talk or at > least listen to something as fundamental as a com port. Think of all the serial > devices hanging off the end of PCs that need monitoring in real time. Given that > I just "discovered" (thanks ddj) Rebol perhaps there is something I am missing? > Hmm, just tell me please how do you want to stay multipltform then? Well, I suggest you looking at /Command version where you can interface to external libraries, or, if you want to still use rebol for free - writing an "gate" app, listening on some port to rebol, while handling COM port issues on another side .. Cheers, -pekr- > > [EMAIL PROTECTED] > > [EMAIL PROTECTED] wrote: > > > My understanding is you cannot access the com port directly from Rebol. > > However, I used IPComserver a program by http://www.iox.co.za to essentially > > give the Com port a tcp/ip port. > > Then I could use Rebol with tcp/ip through IPComserver to talk to my device. > > > > Brett. > >
[REBOL] Com port parameters. Re:(2)
Perhaps the thought is that COM port addressing has already been deprecated in favor of tcp/ip addressing to wireless devices? -Ryan > > Thanks for the pointer Brett. > > Seems a little odd that a "messaging system" would not be inclined to talk > or at least listen to something as fundamental as a com port. Think of all > the serial devices hanging off the end of PCs that need monitoring in real > time. Given that I just "discovered" (thanks ddj) Rebol perhaps there is > something I am missing? > > [EMAIL PROTECTED] > > > > > > [EMAIL PROTECTED] wrote: > > > My understanding is you cannot access the com port directly from Rebol. > > However, I used IPComserver a program by http://www.iox.co.za to > > essentially give the Com port a tcp/ip port. Then I could use Rebol with > > tcp/ip through IPComserver to talk to my device. > > > > Brett. > > >
[REBOL] Re:Com port parameters.
Thanks for the pointer Brett. Seems a little odd that a "messaging system" would not be inclined to talk or at least listen to something as fundamental as a com port. Think of all the serial devices hanging off the end of PCs that need monitoring in real time. Given that I just "discovered" (thanks ddj) Rebol perhaps there is something I am missing? [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: > My understanding is you cannot access the com port directly from Rebol. > However, I used IPComserver a program by http://www.iox.co.za to essentially > give the Com port a tcp/ip port. > Then I could use Rebol with tcp/ip through IPComserver to talk to my device. > > Brett. >
[REBOL] Does rebol --do "print 123" for e.g. work for ya? Re:
Hello [EMAIL PROTECTED] On 06-Jul-00, You wrote: > I am just curious if running rebol with command line parameters work for > you? I get following error: >> REBOL --do "print 123" works fine for REBOL/Core 2.3.0.1.1 22-Jun-2000 ; i.e. Amiga 68020+ version As does DEMO disabled REBOL/View 0.9.9.1.1 1-Jun-2000 ;-"- Maybe You're trying /View with Demo enabled? No time to test this by myself (RAM Disk too full of other REBOL stuff to use GUI ;-) Regards Christian [EMAIL PROTECTED]
[REBOL] An experiment with RTF Re:(2)
There are a few very good applications especially for people who believe in just what you said (content/seperation, writing content for the web instead of writing HTML for the web) if you want, i can dig up the appropriate url's, but these might be worth checking out: - http://www.editthispage.com - http://www.pyra.com - http://www.trellix.com consistent styles through templates are the basis for these three applications. As for Rebol, have a look at blogger, the product from pyra.com. No Rebol there, but wouldn't it be nice (just dreaming away) hendrik-jan PS: these three examples are based upon the idea/concept of maintaining weblogs, i.e. rapid/frequent updates of content with no continuous thought about the presentation > >The situation I have is that I'm going to do up a web-site for my sister's > >company. I want to be able to implement a consistent style for the site and > >yet have my sister or her staff do the updates. Since they are not familiar > >with Web pages (and I don't think they should have to be), I was looking for > >some sort of automated process. I've done a lot of research on the web and I > >haven't seen a simple effective solution to this problem - the grail of > >content + presentation.
[REBOL] An experiment with RTF Re:
Well, it all depends on HOW they will be updating the site and what is it on the site they will be updating? I've written a script which allows people to update a site of news headlines by sending an e-mail to an e-mail address. If you know WHICH content you want them to update, you can do the same. Here is my script: http://www.bebits.com/app/1226 The other way to do it is to set up a site with Web-based forms from which they can update content. >The situation I have is that I'm going to do up a web-site for my sister's >company. I want to be able to implement a consistent style for the site and >yet have my sister or her staff do the updates. Since they are not familiar >with Web pages (and I don't think they should have to be), I was looking for >some sort of automated process. I've done a lot of research on the web and I >haven't seen a simple effective solution to this problem - the grail of >content + presentation.
[REBOL] Big Brother Re:(3)
Thank you for your help I sent a fixed version of the script before i get your response :-) - Original Message - From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, July 06, 2000 3:07 PM Subject: [REBOL] Big Brother Re:(2) > Hey - > > this is pretty cool! I fixed the axis one by doing the following: > > write/binary (to-file join "image" [ count ".jpg"]) copy/part head buffer p2 > ;count: count + 1 > f/image: load (to-file join "image" [ count ".jpg"]) > ;f/image: load to-binary copy/part head buffer p2 > show f > > I'm not sure why the to-binary statement isn't working tho. All this does > is save jpg to disk, and load it, reusing the same filename over and over. > > - Porter
[REBOL] Odd results Re:(2)
[EMAIL PROTECTED] wrote: > > Hi Deryk, > > One of the reasons you are getting errors is that an 'inform dialog cannot > be shown as the first/only face. But as below shows you can re-use you > dialog as much as you like after it has a parent face. Yup, okay, I can understand that (don't know why, but can comprehend..) > ; this works > view layout [ >button "this" [inform-error "Title Text" "This is some error text." > "Okay"] >button "that" [inform-error "Title Text" "You pressed 'that button." > "Okay"] > ] Yup, so it does. > Another thing to remember, 'Layout is for creating a 'face using VID or VID > styles. > If you look at your layout. You can see that you are not providing a style > in your layout block. > Hence the unrecognised style errors in... Yup, thought (and noticed the style bit) about that also. But, as you notice, inform-error is a function which should "in theory" be able to be called and executed from within the view layout [] context. It appears to me that the parser is pulling out the pieces it wants and disregarding the rest for the most part as unneeded. If we do: view layout [ button "Howdy Gang!" [print "Rebol is cool"] button "Quit" [quit] inform-error "Title Text" "This is some error text." "Okay" ] We still will not get the inform-error function called which really was the part that confused me the most as the parser (interpreter) perceives this as a 'style. Deryk
[REBOL] Big Brother Re:(2)
Hi
Here is an update of my previous post
To make script webcam.r works I need to write temp files to disk
So you have to lower the security.
Hammiche Mourad
[EMAIL PROTECTED]
REBOL [
Title: "Jpeg stream viewer"
Author: "Hammiche Mourad"
Email: [EMAIL PROTECTED]
Date: 06-Jul-2000
Version: 1.0.1
Purpose: {Show a multipart/x-mixed-replace stream of jpeg images.
}
Note: { it create temp file on disk }
]
; stream directy from an axis 200+ webcam (not available from outside)
;webcam: http://192.168.1.10/cgi-bin/fullsize.srvpushb
; stream from the axis demo on internet
webcam: http://peeper.axisinc.com/nph-update.cgi
count: 1
view layout [
frame 352x288 with [
rate: 4
p1: none
p2: none
fp: open/direct/binary webcam
buffer: make string! 4096
feel: make feel [
engage: func [f a e ] [
append buffer copy/part fp 4096
if none? p1 [
if found? p1: find/tail buffer "image/jpeg^/^/" [
remove/part buffer p1
]
]
if found? p2: find buffer "^/^/--myboundary" [
write/binary %temp.jpg copy/part head buffer p2
count: count + 1
f/image: load %temp.jpg
show f
remove/part buffer p2
p1: none
]
]
]
]
button "Quit" [ quit ]
]
[REBOL] Com port parameters. Setting How? Re:
My understanding is you cannot access the com port directly from Rebol. However, I used IPComserver a program by http://www.iox.co.za to essentially give the Com port a tcp/ip port. Then I could use Rebol with tcp/ip through IPComserver to talk to my device. Brett. - Original Message - From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, July 06, 2000 7:03 PM Subject: [REBOL] Com port parameters. Setting How? > What is the method for setting the com port parameters so I may > interface to a GPS unit. > Specifically com2 4800 8N1. > Thanks in advance! > > Sincerely, > [EMAIL PROTECTED] >
[REBOL] Big Brother Re:
The rebol side of the Big Brother discussion is interesting, but i am very sorry to hear the words Big Brother again! The Big Brother concept started in The Netherlands. It was, for months and months, completely impossible to not know what was happening in the BB house, all female participants have now featured in Playboy off course (so i heard *grin*), all psychologists have written learned columns about it, numerous (>1000) web sites are/have been dedicated to the participants etc. etc. etc. Poor US citizens, on behalf of the Dutch, I apologize for this export product. (the apologies are extended to the Spanish, the Germans and all other people living in countries who have bought the concept) greetings, hendrik-jan
[REBOL] what type of tcp port's best ...? Re:(2)
- Original Message - From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, July 06, 2000 10:51 PM Subject: [REBOL] what type of tcp port's best ...? Re: > [EMAIL PROTECTED] wrote: > > > > Or is it better to generate the script-file? But then I would have to > > save image data and load it into /View from harddrive. I just thought > > delivering whole data thru tcp/ip port would be faster, but that's the > > question .. > > Hrmm..thinking about this..(.oO(---)) <-- empty thoughts lol > > Okay, depending on the size of the script you could do it one of two > ways: > > 1. Build script, send through to waiting /view > > ex: SERVER CLIENT > poke, prod.. yeah? > catch! okay, receiving.. > I'm done yes, you are, doing script now, cya > okay > > 2. Build script, save to disk, tell /view where to find it (one line..) > > ex: SERVER CLIENT > (builds script, > saves to disk) > poke, prod.. yeah, what? > do this please uhmm..sure, not a problem > thanks cya > delete file(s) Variation on 2. Build script, save image to disk, view script constantly polls a directory and displays anything new. This way view is always running so you avoid the startup lag. As for speed vs using ports, it depends on file-size and harddrive speed. It is the simpler solution, would test first to see if speed is acceptable. Cheers, Allen K
[REBOL] Big Brother Re:(2)
Hey - this is pretty cool! I fixed the axis one by doing the following: write/binary (to-file join "image" [ count ".jpg"]) copy/part head buffer p2 ;count: count + 1 f/image: load (to-file join "image" [ count ".jpg"]) ;f/image: load to-binary copy/part head buffer p2 show f I'm not sure why the to-binary statement isn't working tho. All this does is save jpg to disk, and load it, reusing the same filename over and over. - Porter - Original Message - From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, July 06, 2000 4:55 AM Subject: [REBOL] Big Brother Re: > Hi > > This stream use an rtsp protocol > It need Real player. > > I write a small script to parse a multipart/x-mixed-replace stream of jpeg > images from a webcam > > Here the format of the stream > > "The http header" > Content-type: multipart/x-mixed-replace; boundary=--myboundary\n\n > "The jpegs images" > Content-type: image/jpeg\n\n > image data > \n\n--myboundary\n > . > . > . > Content-type: image/jpeg\n\n > image data > \n\n--myboundary\n > > > It works smothly with our webcam in our intranet > But i can't manage to make it works with a demo stream available on the axis > web site (www.axis.com) > > problem: the jpegs are parsed correctly but it fail to convert jpeg data to > an image! datatype. > The images saved to disk are ok and they can be loaded later in rebol/view > (see the source) > > May someone help me to fix it ? > > Thanks > > Hammiche Mourad > [EMAIL PROTECTED] > > > > - Original Message - > From: <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Thursday, July 06, 2000 4:23 AM > Subject: [REBOL] Big Brother > > > > > > Is there a REBOL way of acquiring the pictures out of the stream from > CBS's > > "Big Brother"? > > > > I received a "Not Implemented" error. > > > > http://bb1.stream.aol.com:8080/ramgen/adtag/general/live/bblive1.smi > > http://bb1.stream.aol.com:8080/ramgen/adtag/general/live/bblive2.smi > > http://bb1.stream.aol.com:8080/ramgen/adtag/general/live/bblive3.smi > > http://bb1.stream.aol.com:8080/ramgen/adtag/general/live/bblive4.smi > > > > -- > > > > ---===///||| Donald Dalley |||\\\===--- > > The World of AmiBroker Support > > http://webhome.idirect.com/~ddalley > > UIN/ICQ#: 65203020 > > > > >
[REBOL] Com port parameters. Setting How?
What is the method for setting the com port parameters so I may interface to a GPS unit. Specifically com2 4800 8N1. Thanks in advance! Sincerely, [EMAIL PROTECTED]
[REBOL] Odd results Re:
Hi Deryk, One of the reasons you are getting errors is that an 'inform dialog cannot be shown as the first/only face. But as below shows you can re-use you dialog as much as you like after it has a parent face. ; this works view layout [ button "this" [inform-error "Title Text" "This is some error text." "Okay"] button "that" [inform-error "Title Text" "You pressed 'that button." "Okay"] ] Another thing to remember, 'Layout is for creating a 'face using VID or VID styles. If you look at your layout. You can see that you are not providing a style in your layout block. Hence the unrecognised style errors in... > view layout [ > inform-error "Title Text" "This is some error text." "Okay" > ] Cheers, Allen K
[REBOL] what type of tcp port's best ...? Re:
[EMAIL PROTECTED] wrote: > > Or is it better to generate the script-file? But then I would have to > save image data and load it into /View from harddrive. I just thought > delivering whole data thru tcp/ip port would be faster, but that's the > question .. Hrmm..thinking about this..(.oO(---)) <-- empty thoughts lol Okay, depending on the size of the script you could do it one of two ways: 1. Build script, send through to waiting /view ex: SERVER CLIENT poke, prod..yeah? catch! okay, receiving.. I'm doneyes, you are, doing script now, cya okay 2. Build script, save to disk, tell /view where to find it (one line..) ex: SERVER CLIENT (builds script, saves to disk) poke, prod..yeah, what? do this please uhmm..sure, not a problem thanks cya delete file(s) Deryk
[REBOL] Does rebol --do "print 123" for e.g. work for ya? Re:
[EMAIL PROTECTED] wrote: > > Hi, > > I am just curious if running rebol with command line parameters work for > you? I get following error: > > rebol --do "print 123" > > ** Script Error: print is missing its value argument. > ** Where: print > ** Press enter to quit... > > Thanks, > -pekr- [newlook@trek test]$ rebol --do "print 123" 123 REBOL/View 0.9.9.4.2 1-Jun-2000 Copyright 2000 REBOL Technologies. All rights reserved. Type DEMO to run demo if it is disabled >> works fine on this end. Deryk
[REBOL] Does rebol --do "print 123" for e.g. work for ya? Re:
Um, yup. Win NT4 REBOL/Core 2.3.0.3.1 REBOL/View 0.9.9.3.1 Brett. - Original Message - From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, July 06, 2000 10:04 PM Subject: [REBOL] Does rebol --do "print 123" for e.g. work for ya? > Hi, > > I am just curious if running rebol with command line parameters work for > you? I get following error: > > rebol --do "print 123" > > ** Script Error: print is missing its value argument. > ** Where: print > ** Press enter to quit... > > Thanks, > -pekr- >
[REBOL] Does rebol --do "print 123" for e.g. work for ya?
Hi, I am just curious if running rebol with command line parameters work for you? I get following error: rebol --do "print 123" ** Script Error: print is missing its value argument. ** Where: print ** Press enter to quit... Thanks, -pekr-
[REBOL] what type of tcp port's best ...?
Hi, as /Command currently doesn't contain /View component, I thought about creating some server, which would transfer image data to /View for the display Althought I could launch new /View task with --do "view layout [image %bay.jpg]" command line parameter, /View itself starts for some 4-5 sec on my P133, and it's not acceptable. So I thought about running /View and delivering data thru tcp/ip ports. So here's my question - what's the best kind of port to do so? open, open/binary, open/binary/direct, open/lines? To date the most used here is open/lines, but I would like to know also opinion of others ... The problem also is - if I will want to create some non-blocking server (e.g. something along the lines of Sterling's reb-proxy.r script), I will have to send data by chunks and then build the result on the other side). So let' say /View is making connection to /Command server, requesting instructions to do and I would like to send something like: "view layout [image <<>" ... Or is it better to generate the script-file? But then I would have to save image data and load it into /View from harddrive. I just thought delivering whole data thru tcp/ip port would be faster, but that's the question .. Anyone? Thanks, -pekr-
[REBOL] Odd results
'lo gang. Here is a wierd one which has me stumped. Why will the
following not work?
REBOL [
Title: "InformeR"
File: %informer.r
Author: "Deryk Robosson"
Email: [EMAIL PROTECTED]
Date: 04-Jul-2000
Purpose: { A simple menthod for providing simple requesters }
]
image-path: http://www.google.com/images/Title_Paint.gif
inform-error: func [
{Displays an error requester}
ttext [series!] {Title text}
itext [series!] {Text to be displayed}
gatext [series!] {Gadget Text}
/local error-img
][
inform layout [
subtitle ttext
across image image-path text itext 'return
button gatext [hide-popup]
]
]
view layout [
inform-error "Title Text" "This is some error text." "Okay"
]
results in:
Unknown word or style: inform-error
Misplaced item: "Title "
Misplaced item: "This i"
Misplaced item: "Okay"
The window opens but nothing is displayed. I'm still baffled as to why
one cannot just mix and match /view and /core at any time and place.
Regards,
Deryk
[REBOL] FAQ Generator/Editor
Another tool I use around the shop for easy editing and creation of FAQ's. Availability: normal: http://users.iitowns.com/deryk/rebol/faqr.tar.gz Rebol: do http://users.iitowns.com/deryk/rebol/faqr.rip To change final generated page layout, edit the variables at the top of makefaq.r Comments, suggestions, and modifications are as always, welcome. Regards, Deryk
[REBOL] An experiment with RTF Re:(2)
Thats a point. Unfortunately I don't have it (the latest version), but my sister does. I'll get her to send me something. Thanks. > > Word can also export as XML which you could parse much easier with > Rebol. :) > > Deryk >
[REBOL] An experiment with RTF Re:
[EMAIL PROTECTED] wrote: > > Hi, > > Again I'm re-impressed with rebol. I spent yesterday and today parsing Rich > Text Format files with rebol and it works a treat. > Although I only got as far as loading RTF into Rebol blocks and words - but > I'm still impressed. > > The situation I have is that I'm going to do up a web-site for my sister's > company. I want to be able to implement a consistent style for the site and > yet have my sister or her staff do the updates. Since they are not familiar > with Web pages (and I don't think they should have to be), I was looking for > some sort of automated process. I've done a lot of research on the web and I > haven't seen a simple effective solution to this problem - the grail of > content + presentation. > > I'd appreciate any comments on other peoples experiences with this sort of > thing. > > I hope others may yet find a use for the code I've generated so far, so I > placed it at rebol.org. And if you can use it let me know - I need the > satisfaction :) > > The script can be found at http://www.rebol.org/general/rtf-tools.r Brett, Word can also export as XML which you could parse much easier with Rebol. :) Deryk
[REBOL] An experiment with RTF
Hi, Again I'm re-impressed with rebol. I spent yesterday and today parsing Rich Text Format files with rebol and it works a treat. Although I only got as far as loading RTF into Rebol blocks and words - but I'm still impressed. The situation I have is that I'm going to do up a web-site for my sister's company. I want to be able to implement a consistent style for the site and yet have my sister or her staff do the updates. Since they are not familiar with Web pages (and I don't think they should have to be), I was looking for some sort of automated process. I've done a lot of research on the web and I haven't seen a simple effective solution to this problem - the grail of content + presentation. I'd appreciate any comments on other peoples experiences with this sort of thing. I hope others may yet find a use for the code I've generated so far, so I placed it at rebol.org. And if you can use it let me know - I need the satisfaction :) The script can be found at http://www.rebol.org/general/rtf-tools.r Brett Handley
[REBOL] Big Brother Re:
Hi
This stream use an rtsp protocol
It need Real player.
I write a small script to parse a multipart/x-mixed-replace stream of jpeg
images from a webcam
Here the format of the stream
"The http header"
Content-type: multipart/x-mixed-replace; boundary=--myboundary\n\n
"The jpegs images"
Content-type: image/jpeg\n\n
image data
\n\n--myboundary\n
.
.
.
Content-type: image/jpeg\n\n
image data
\n\n--myboundary\n
It works smothly with our webcam in our intranet
But i can't manage to make it works with a demo stream available on the axis
web site (www.axis.com)
problem: the jpegs are parsed correctly but it fail to convert jpeg data to
an image! datatype.
The images saved to disk are ok and they can be loaded later in rebol/view
(see the source)
May someone help me to fix it ?
Thanks
Hammiche Mourad
[EMAIL PROTECTED]
- Original Message -
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, July 06, 2000 4:23 AM
Subject: [REBOL] Big Brother
>
> Is there a REBOL way of acquiring the pictures out of the stream from
CBS's
> "Big Brother"?
>
> I received a "Not Implemented" error.
>
> http://bb1.stream.aol.com:8080/ramgen/adtag/general/live/bblive1.smi
> http://bb1.stream.aol.com:8080/ramgen/adtag/general/live/bblive2.smi
> http://bb1.stream.aol.com:8080/ramgen/adtag/general/live/bblive3.smi
> http://bb1.stream.aol.com:8080/ramgen/adtag/general/live/bblive4.smi
>
> --
>
> ---===///||| Donald Dalley |||\\\===---
> The World of AmiBroker Support
> http://webhome.idirect.com/~ddalley
> UIN/ICQ#: 65203020
>
>
REBOL [
Title: "Jpeg stream viewer"
Author: "Hammiche Mourad"
Email: [EMAIL PROTECTED]
Date: 04-Jul-2000
Version: 1.0.0
Purpose: {Show a multipart/x-mixed-replace stream of jpeg images.
}
Note: {it works perfectly with my webcam ( 1 img / sec )
but it does not work with the axis demo.
}
]
; stream directy from an axis 200+ webcam (not available from outside)
webcam: http://192.168.1.10/cgi-bin/fullsize.srvpushb
; stream from the axis demo on internet
;webcam: http://peeper.axisinc.com/nph-update.cgi
count: 1
view layout [
frame 352x288 with [
rate: 4
p1: none
p2: none
fp: open/direct/binary webcam
buffer: make string! 4096
feel: make feel [
engage: func [f a e ] [
append buffer copy/part fp 4096
if none? p1 [
if found? p1: find/tail buffer "image/jpeg^/^/" [
remove/part buffer p1
]
]
if found? p2: find buffer "^/^/--myboundary" [
; uncomment to save the image on disk
; write/binary (to-file join "image" [ count ".jpg"]) copy/part head buffer p2
count: count + 1
f/image: load to-binary copy/part head buffer p2
show f
remove/part buffer p2
p1: none
]
]
]
]
button "Quit" [ quit ]
]
[REBOL] Find speed Re:(2)
Hi,
regarding memoizing. There is a class of functions, that must use
some kind of memoizing to work at all, I think. The number of the
possibilities for parameters does not matter, you can store only
important results (depending on what you consider important - eg.
expensive or recent results...)
Because I used a non-real-life example for testing, here is
something more adequate for memoizing purposes:
Block/find time: 14.5 count: 7771
Block/bfind time: 5.875 count: 7771
Hash/find time: 28.5 count: 7771
The source code:
REBOL[
Title: "Seconds"
Author: "Ladislav Mecir"
Email: [EMAIL PROTECTED]
Date: 19/5/1999
File: %seconds.r
]
seconds: function [
{Compute difference between dates in seconds}
a [date!] "first date"
b [date!] "second date"
] [diff] [
diff: b - a
diff: 24 * diff + b/time/hour - a/time/hour +
b/zone/hour - a/zone/hour
diff: 60 * diff + b/time/minute - a/time/minute
60 * diff + b/time/second - a/time/second
]
REBOL[
Title: "Time-block"
Author: "Ladislav Mecir"
E-mail: [EMAIL PROTECTED]
Date: 19/5/1999
File: %timblk.r
Purpose: {
Measure time of a block execution with given relative
accuracy.
This function can even time the execution of the empty
block.
Suggested values for accuracy are: 0.05 to 0.30.
Accuracy better than 0.05 may not be reachable,
accuracy worse than 0.30 may not be useful.
}
]
include %seconds.r
time-block: function [
"Time a block."
block [block!]
accuracy [decimal!]
/verbose
] [
guess count lower upper start finish result
] [
if verbose [print ["Timing a block:" block]]
guess: 0
count: 1
lower: 1 - :accuracy
upper: 1 + :accuracy
while [
start: now
loop :count :block
finish: now
result: (seconds start finish) / count
if verbose [
prin "Iterations: "
prin count
prin ". Time/iteration: "
prin result
prin " seconds.^/"
]
any [
result <= 0
guess < (result * lower)
guess > (result * upper)
]
][
guess: result
count: count * 2
]
result
]
{
Example:
time-block [] 0,05
}
Rebol []
bfind: func [
blk [block!]
value
/local d u m
] [
d: 1
u: length? blk
while [(m: to integer! (d + u) / 2) > d] [
either (pick blk m) <= value [d: m] [u: m]
]
either (pick blk u) <= value [u] [d]
]
include %timblk.r
n: 8192 ; the test size
m: 10 * n ; random number range
prin "Block/find time: "
prin time-block [
random/seed 1
c: 0
blk: copy []
repeat i n [
d: random m
if not find blk d [
c: c + 1
append blk d
]
]
] 0.05
prin " count: "
print c
prin "Block/bfind time: "
prin time-block [
random/seed 1
c: 0
blk: copy []
repeat i n [
d: random m
either empty? blk [
c: c + 1
insert blk d
] [
bf: bfind blk d
if not (pick blk bf) = d [
c: c + 1
insert skip blk either (pick blk bf) > d [
bf - 1
] [
bf
] d
]
]
]
] 0.05
prin " count: "
print c
prin "Hash/find time: "
prin time-block [
random/seed 1
c: 0
blk: make hash! []
repeat i n [
d: random m
if not find blk d [
c: c + 1
insert blk d
]
]
] 0.05
prin " count: "
print c
>
>
> Hi, Ladislav,
>
> if you are interested only in an associative array,
> then a properly implemented hash should beat the
> hell out of even a binary search on large data.
>
> I guess it depends somewhat on the quality of the
> hash function and other aspects of the implementation.
>
> So, if you can beat the Rebol hash, which is probably compiled
> c-code, with your binary search written in interpreted Rebol,
> then RT had better take a look at their Rebol hashes.
>
> Would you like to share some test source code with us
> so we can try to duplicate and analyze your results?
>
> Thanks!
>
> -galt
>
> p.s. Does memo-ize only make sense when there are a limited
> number of possibilities for the parameters? If the space of
possible
> values is very large and requests could come in a sort of
> random or rarely repeating way then the memo-ize trick wouldn't
> do much good, would it?
>
>
>
[REBOL] Automation query... Re:
Hi, I just noticed that Windows has a problem with colons in file names. This should work better if you're running under MS Windows (under linux, you can disregard the modification): REBOL [] forever [ wait 60 if error? set/any 'error try [ do %popreader.r ] [ date: replace form now "/" "-" date: replace/all date ":" "." logfile: to file! join "error-" [date ".log"] save logfile mold disarm error ] ] ;- Elan [ : - ) ]
[REBOL] Automation query... Re:
Hi TBrownell, you wrote: >Hi. > >What is the best way to run a script on a timer basis? > >I have a script that that fires off another that >checks a pop account every minute and then runs any >scripts it finds. > >This is a bit thick, but it works... > >N: repeat 100 [wait 60 do %popreader.r] You can use forever, i.e. forever [ wait 60 do %popreader.r ] > >This is lacking as... > >A. If it hits an error it stalls. use try, i.e. forever [ wait 60 if error? set/any 'error try [ do %popreader.r ] [ date: replace form now "/" "-" logfile: to file! join "error-" [date ".log"] save logfile mold disarm error ] ] (this will log each error into its own file called error--.log) and - more importantly - it should continue executing. >B. It picks up values from all the scripts it >generates via email That I don't understand. Where are these values coming from? Remember, REBOL does garbage collection, so I would assume - depending on how popreader.r is written - that old values are garbage collected whenever you rerun popreader.r, because popreader.r will reuse the same words it used previously. When the words are reused the old values become orphaned and are garbage collected. So you shouldn't be accumulating any garbage. But then again, I haven't seen popreader's source, so what do I know? In any event, it should be possible to write popreader.r in such a way that you don't accumulate stuff over several runs. Hope this helps, ;- Elan [ : - ) ]
