World: r4wp
[#Red] Red language group
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Arnold 19-Sep-2012 [1981] | Maybe it is more profitable now :D |
DocKimbel 20-Sep-2012 [1982] | Red FB group: https://www.facebook.com/groups/redlanguage/ My new public FB profil: https://www.facebook.com/redlanguage Those that sent my friend requests recently to my private page, can now resend them to this new one. |
MagnussonC 21-Sep-2012 [1983] | That FB Red avatar is rather ... blue |
DocKimbel 21-Sep-2012 [1984x2] | Good point, I'll see how Doctor Manhattan renders in red shades. ;-) |
This is huge: http://www.pythontutor.com We need to write Red documentation that way too! | |
Endo 21-Sep-2012 [1986] | Cool! (for FB group and pythontutor.com) |
AdrianS 21-Sep-2012 [1987x2] | Really nice - I thought the examples were canned at first, and I was thinking how tedious it must've been to set these up, but I see that it's all generated on the fly. |
I would've thought that trying to show so many things (program listing, output, data structures) in that amount of space would make it hard to follow - it's surprisingly clear, though. | |
Arnold 21-Sep-2012 [1989] | Well my patience is being tested. No red-lang mailing list for me for a week or more. Account disabled. (Red-terrorist :) ) |
Pekr 22-Sep-2012 [1990] | Ah, Unicode plan posted, should be announed here :-) http://www.red-lang.org/2012/09/plan-for-unicode-support.html |
Henrik 22-Sep-2012 [1991] | Any particular plan for error handling? |
DocKimbel 22-Sep-2012 [1992x3] | Nothing in particular, I will implement it the same way as in REBOL. If you have suggestion about improvements, it's still time. |
Error handling will come fast, probably next week, but in a basic version as we still don't have something like system/standard/* | |
Pekr: I guess that all people here interested in Red have subscribed to red-lang.org feed. ;-) | |
Pekr 22-Sep-2012 [1995x2] | yes, but? :-) You posted about FB group above ... which is part of the Twitter feed too :-) |
what I liked about R3 errors was addition of 'why function, which pointed you to the docs :-) | |
Henrik 22-Sep-2012 [1997x2] | Pekr, yes, exactly one thing I'm missing about the current error system. Also currently user error strings are difficult to localize unless you use your own scheme, when displaying the error. |
You can certainly carry this data in the arg1, arg2 and arg3 words, but it's a bit awkward. | |
Arnold 22-Sep-2012 [1999] | About error, maybe some indication of the line number. Not prominent but as a hint at least, however using find most of the time finds the right place where the error is, sometimes it is not so clear. |
DocKimbel 22-Sep-2012 [2000x3] | Henrik: you're are passing REBOL errors to end users? |
Line numbers: there are complicated and costly to handle in a REBOL-like language at runtime. The experimentation I did in Red/System confirms it. I'm not sure I will add them to Red unless we can come up with an efficient solution. | |
*they | |
Henrik 22-Sep-2012 [2003x2] | Dockimbel, well, maybe it's bad design, but what I do generally is make error! in the deepest part of the code. When such a user error happens (which is generated by a plain make error! "something failed"), I disarm it and display arg1 in a dialog in the higher level code, if that makes sense. This way, errors are easy to identify and I don't have to make up schemes for return values. When a REBOL error happens at the same level, I let the program crash. |
Arnold, in R3 there is a stack trace shown at the error message, which lets you find errors much quicker than in R2. Line numbers aren't really practical with REBOL. | |
Marco 22-Sep-2012 [2005] | Is there any "tedious" task (not involving manuals, docs or graphics) that could be done by some volunteer to speed up Red development ? |
Arnold 22-Sep-2012 [2006x2] | question about compiler.r while [intrinsic! [cond [block!] body [block!]]] until [intrinsic! [body [block!]]] no condition needed for until? |
(I know it is the value of the last line if it is a condition in rebol but shouldn't it be specified?) | |
BrianH 22-Sep-2012 [2008x2] | Nope. There is only one argument, the body. |
Those are just argument specs. They don't specify behavior eyond that. | |
DocKimbel 22-Sep-2012 [2010x2] | Marco: besides coding in Red/System, I don't see what you could do currently to speed it up. Here are some ideas for the additional coding that will need to be done: You can write in Red/System some of the non-trivial natives, like e.g. set natives: sort, union, intersect, unique, difference. Other natives or support code we will need are codecs for: - compression supporting these algorithms: deflate, lzo - cryptography: MD5, SHA-1, AES, ...(all the required ones for SSH and SSL support) You can port C code to Red/System, there are tons of available C source code, you just have to make it right (crypto requires accurate coding, implementations need to be deeply tested for flaws). |
Alternatively, you can try to find a good existing open-source SSH/SSL lib that is BSD-compatible, so far, I haven't found any. All the robust open source ones that I could found are under GPL. | |
Arnold 22-Sep-2012 [2012] | ok, just like in REBOL of course. Still it looks strange because I expect it to be there because there always is in other languages and it is a loop until a condition is met. So somewhere that condition must be tested to be true or false but indeed this part is more the definition of how the statement as a whole should be formatted in a Red program. I'm back on track, thanks! |
Henrik 22-Sep-2012 [2013] | cryptography: maybe I can handle ROT13. :-) |
AdrianS 22-Sep-2012 [2014x3] | Marco, maybe you could do a syntax coloring scheme for one of the popular editors out there |
I guess this would be more straighforward for Red/System as opposed to Red because of the more limited syntax. I would think a regex based approach would work for that | |
might be worth starting with a TextMate bundle for REBOL and simplifying that, for Red/System | |
Arnold 22-Sep-2012 [2017x2] | I can live without the line numbers, even in a R2 like error handling :) A lot of programming errors are development related and should never happen again once correct datatypes are passed on between functions so after this is done no further need for extra debugging statements here. User input is always wrong, they give wrong data and should be punished hard for that (Oh no that's Googles point of view) but the point is it should be tested to be what it should be and in that way REBOL errors should rarely be reported by users. (just my 2cents) |
Red needs a "Red programming language Pocket Reference" (O'Reilly book) before the world dominance can set in. | |
GrahamC 22-Sep-2012 [2019] | OpenSSH is BSD http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/LICENCE?rev=HEAD |
Kaj 22-Sep-2012 [2020x2] | Unfortunately, with the advertising clause |
The underlying OpenSSL, that is | |
Henrik 22-Sep-2012 [2022] | what are the restrictions if you read the code and port it to another language without running any of the original code with the exception of test suites? |
Kaj 22-Sep-2012 [2023] | Running makes no difference, but if you really port the code, you're entering a gray area in which I would guess the copyright could still apply to some extent |
Henrik 22-Sep-2012 [2024] | There would have to be a complete specification somewhere that could be used for implementation. |
GrahamC 22-Sep-2012 [2025] | Not sure what you mean by advertising clause ... there are Amiga bsd ports http://linuxmafia.com/ssh/amiga.html |
Kaj 22-Sep-2012 [2026x2] | Henrik, yes, Graham's link says that all the information is available. But then you're looking at complete reimplementations of a whole software suit that's extremely security critical |
Advertising clause doesn't prevent porting. It just obligates you to advertise the author | |
Henrik 22-Sep-2012 [2028] | One could always ask the original implementors. |
Kaj 22-Sep-2012 [2029] | Their stance is clear. The whole world has already complained, so this is what you get |
GrahamC 22-Sep-2012 [2030] | Steve has already done the Amiga port |
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