World: r3wp
[Core] Discuss core issues
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btiffin 12-Sep-2007 [8718] | Oh, now Ashley fills in more of the picture as I was typing. Seeing as I can use either or all, perhaps I'll start getting used to all for this idiom. :) |
Chris 13-Sep-2007 [8719x2] | It's like 'if in that regard though. 'if returns none when the condition is false... |
I guess 'all could be considered "all or nothing". | |
btiffin 13-Sep-2007 [8721] | Yeah, I was just griping about docs. :) none is fair return, and consistent for all cases, pun intended. |
Henrik 13-Sep-2007 [8722] | this is spinning my brain: foreach [a b] [1 2 3 4] [print get load "a"] ** Script error: a has no value How do I bring "a" under the correct context? |
Gregg 13-Sep-2007 [8723] | foreach [a b] [1 2 3 4] [print get bind load "a" 'b] |
Henrik 13-Sep-2007 [8724] | gregg, thanks, it works :-) |
Joe 13-Sep-2007 [8725] | Gregg, thanks, forward worked ! It's hard to know without documentation. How did you know ? |
Gregg 14-Sep-2007 [8726] | Joe, Sorry, I thought you must have found the docs, since you got as far as you did. :-) http://www.rebol.com/docs/core25.html#sect4.1.4. |
james_nak 14-Sep-2007 [8727] | How do you clear out a local variable within a function? I have this scenario and I can't get the function to run more than once. I could copy the contents to a temp var but that seems silly. a: func [ some-var /local s] [ s: "example %text% string" replace/all s "%text%" some-var ] Once I run this thing "s" never gets its orginal value. Thanks |
Alberto 14-Sep-2007 [8728] | s: copy "example %text% string" |
james_nak 14-Sep-2007 [8729] | So simple. Thanks Alberto. Estas en Mexico? |
Alberto 14-Sep-2007 [8730] | así es |
james_nak 14-Sep-2007 [8731] | DF? |
Alberto 14-Sep-2007 [8732x2] | sí, en el DF |
tu dónde estás? | |
james_nak 14-Sep-2007 [8734] | Estoy en California acerca de Los Angeles. |
Alberto 14-Sep-2007 [8735] | ok, podríamos pasar al grupo "rebol spanish" :) |
james_nak 14-Sep-2007 [8736] | Habia uno hace uno o dos anos. A ver si puedo hallar lo.... |
PatrickP61 19-Sep-2007 [8737x2] | While doing a google search on "Rebol AS400" I came across this entry dated Nov 19th 1999: One of the best aspects of REBOL is that it is supported on over 35 platforms, with support for 50 or more platforms expected by the end of the year. One of those platforms, fortunately, is the AS/400...With the strength of REBOL’s cross-platform support, REBOL scripts will run exactly the same way on the AS/400 as they do on any other platform, so you can start REBOL programming before the final release of the AS/400 version... --Chuck Lundgren I work on an AS/400 and would like to get more info on this ability. Anyone know of any updated info for Rebol and AS/400? |
I was able to find one link at the IBM site: http://www.ibm.com/developerworks/edu/l-dw-linuxrebol-i.html | |
Gregg 20-Sep-2007 [8739] | AS/400 isn't on the current short list of OSs that are kept up to date. It looks like the old download page has moved as well, so I don't know what the most recent version is. |
PhilB 21-Sep-2007 [8740] | Partrick, I work on AS400's and have never seen any rebol release for it. The Core release for the platform was always marked as 'pending'. |
PatrickP61 24-Sep-2007 [8741] | Hi Phil. I guess it depends on what OS the AS/400 is running. I have seen some references to AIX or Linix, which Rebol does have a version for, although it is probably an old version. http://www.rebol.com/platforms-core.html |
james_nak 1-Oct-2007 [8742] | I was loading a file, one which contained a block of make object! and the other with a single make object! I noticed that I could do a "reduce" on the block and get the expected results of having a block of objects but I had to use "do" on the single object instead of reduce. What is the difference between do and reduce? |
btiffin 2-Oct-2007 [8743] | It's not directly related, but Ladislav has some pretty good articles on this. http://en.wikibooks.org/wiki/REBOL_Programming/Advanced/Interpreter and http://www.fm.tul.cz/~ladislav/rebol The core manual kind of explains things at http://rebol.com/docs/core23/rebolcore-4.html#section-4.4 |
Gregg 2-Oct-2007 [8744] | DO returns the last value in the block it DOes, but both evaluate, so I'm not sure what the exact data looks like that you're loading, or how you're loading it. LOAD can behave differently, based on file contents; returning a block or not. |
james_nak 2-Oct-2007 [8745] | Thank you guys, that explains some of the behavior right off the bat. It was just one of those odd things to me that pops up once in a while. |
btiffin 2-Oct-2007 [8746] | REBOL? Odd? :) It's one of the few languages I've been exposed to where the deeper issues seep in over time and by osmosis; and can't really be hastened by intense study (at least for me). Study and research do help...it's just that REBOL comes with seemingly random and totally cool eureka moments. Skill with the Forth block editor and anything Icon are other time and osmosis environments; in my experience. Most computing is almost boring in comparison. |
james_nak 2-Oct-2007 [8747] | : ) |
Oldes 3-Oct-2007 [8748] | Is there any simple way hot to reduce into flat block? So I would not have to use something like: tmp: reduce [1 2] either true [append tmp [1 2 3]] [1] ;one or more values append tmp [4 5] tmp I would like to have something like: reduce/flat [1 2 either true [[1 2 3]][1] 4 5] with result: [1 2 1 2 3 4 5] and not [1 2 [1 2 3] 4 5] as with simple reduce |
Ladislav 3-Oct-2007 [8749] | any reason why compose is not sufficient for the job? - then you may try my Build function |
Oldes 3-Oct-2007 [8750] | Ah.. I can use compose... :) I don't know, why I still prefere reduce against compose |
Ladislav 3-Oct-2007 [8751x2] | build example: build/with [1 2 either true [[1 2 3]][1] 4 5] [either: get in system/words 'either] |
another option how to do it using build: build [1 2 ins either true [[1 2 3]][1] 4 5] | |
[unknown: 5] 6-Oct-2007 [8753] | how is open/custom used? |
DanielSz 10-Oct-2007 [8754] | Hi there, are there any rebol wrappers or bindings for LDAP stuff? Apart from the fact that the ldif format is already very close to native rebol syntax, it would be a neat thing to have. |
Pekr 10-Oct-2007 [8755x2] | not sure. IIRC Softinnov.org has some menthion of LDAP, but IIRC it was not complete. You would have to ask DocKimbel. Don't remember if anyone else worked on it. |
If LDAP is a complex thing, it would be maybe to create some wrapper to some existing open-source library, if there is any .... | |
DanielSz 10-Oct-2007 [8757x3] | Thanks, Pekr, DocKimbel would be indeed the person to ask because of his work on the mySQL drivers. After all, a directory (on which LDAP focuses) is nothing but a specialized database. I'm not sure what my needs are because I just started playing with it. Maybe Rebol can assist in the conversion of external sources (CSV for example) to ldif format and possibly populating the directory automatically. |
Softinnov says the following on its web site: | |
This project aims to propose a standard LDAP support for REBOL/Core by implementing the LDAP protocol using REBOL schemes (ldap://), so standard functions like open, insert, find, remove,... can be used directly on the port. The implementation is an on-going work and has been suspended for some months now (due to higher priority projects). The current alpha supports the following features : BER encoding/decoding logic. REBOL dialect for BER structures representation. Basic LDAP v3 protocol. Searching for record using a high level dialect Port handler implemented. What's not currently implemented: Clean and reliable low-level I/O. Full v2/v3 protocol support. Adding, Modifying, Deleting data. Authentication. The current work has been done following the classic REBOL port! communication model, that means : synchronous communications. There's great chances that I choose to port the current work under Uniserve to benefit from a full async model and not push the sync version to the end... | |
Henrik 11-Oct-2007 [8760x8] | I'm stuck with a BIND problem. What may cause a value that is a string to become NONE when it's bound to a block? It's only this one value out of several that I have problems with. There are other strings bound to the block that work correctly. I have no idea what's going on. Suggestions? |
the bind is in a foreach loop that very roughly looks like so: a: [c d e] f: [stuff (c) more stuff (d)] foreach :a b [ ...stuff compose/deep bind f 'c ...stuff ] For some reason 'c in the bound block is NONE. I tried binding to 'd, copy/deep the block, but nothing. | |
If I probe 'c just before the bind, it has the correct value | |
if I change 'c to some random word, that doesn't help either. | |
I think I'm figuring it out.... nasty bind problem | |
DO MOLDing a block should shake off all bindings right? it doesn't seem to happen here. | |
Very interesting stuff... but hard to explain. I've not solved the problem, but my bindings are apparently a mess. | |
YEAH! | |
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