World: r4wp
[#Red] Red language group
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DocKimbel 7-Dec-2012 [4586] | Pekr: I guess the question is "why not i: #FFFFFFFF?"? Simply because # denotes an issue! value not an integer!. The hexadecimal format ending with an `h` character gets converted to an integer! value during the LOAD phase. If you have a better proposition for hexadecimal literal value, I would be glad to hear it. |
Pekr 7-Dec-2012 [4587] | yes, FFFFFFFF# :-) |
DocKimbel 7-Dec-2012 [4588x4] | From the Unity link: "Most of these are virtual machines running Windows, Mac OS X, and Linux." I though Apple was explicitly forbidding to install Mac OS X on anything other than Apple hardware? Do they sell special licenses for VM? |
Ah, missed that part: "...using a combination of Apple and non-Apple hardware." | |
Kaj: I've fixed the extra struct warnings. | |
Pekr: your proposition is not as bad as it could be at first look. ;-) REBOL allows to prefix binary values with a base integer, with base 16 as default:: #{F0} 16#{F0} 2#{1111111100000000} 64#{8A==} We could use a similar convention, but as a suffix, for specifying the base for an integer! value: 123 7B# (default base would be 16 too) 7B#16 01111011#2 173#8 Such literal forms with base explicitly specified would be converted to integer! decimal form at LOADing stage. This is just me thinking loud, but how does that look like to you? | |
Henrik 7-Dec-2012 [4592] | If the REBOL format works, why is there a need to change it? |
DocKimbel 7-Dec-2012 [4593x2] | Binary! <> integer! |
It is not a change, it's an addition. | |
Henrik 7-Dec-2012 [4595] | ok, why is the new method useful? |
DocKimbel 7-Dec-2012 [4596] | Specify literal integer values in base: 2, 8 or 16. |
Henrik 7-Dec-2012 [4597] | Why can you not use the original datatype for this? |
DocKimbel 7-Dec-2012 [4598x2] | So instead of the very costly: a: to-integer #{FFFF} you could write it: a: FFFF# |
Binary! is a series datatype, integer! is a scalar datatype, they are fundamentally different. | |
Henrik 7-Dec-2012 [4600] | ok, now I understand. |
NatasjaK 7-Dec-2012 [4601] | DocKimbel: Kaj told me about you going to Peking for 3 months the upcoming year. Congrats. I Hope they are willing to invest. |
DocKimbel 7-Dec-2012 [4602] | Thanks, I need first to get a Visa, so it is not done yet. |
Pekr 7-Dec-2012 [4603x3] | Doc, I like the proposition, although I can understand, that some ppl might find FFFFFFh cleaner, cause e.g. FF#16 looks a bit heavy :-) OTOH - if someone writes just ffffffh, it is really difficult to read. So in general, I like your proposition :-) |
I am not good at that stuff, but what about 0xFFFFFF, isn't something like that in C? | |
Doc - you are going to spend 3 months in Peking, so no Red advancements in that period? In such a case, I hope you bring some money to the Red homeland :-) | |
DocKimbel 7-Dec-2012 [4606x2] | Lowercase letters are not allowed in hexadecimal literals (both in Red and Red/System), so ffffffffh is not a valid syntax. 0x prefix is colliding with pair! syntax, so you can't tell if, e.g., 0x13 is a pair! or an hex literal. |
I am going to spend 3 months at least in Peking for working on Red, but not only on the coding part. I will try to setup a business activity around Red in order to fund its development further. I prefer to not talk much publicly about it for now, as I am not yet there and there are some potential NDA clauses that I would like to avoid having issues with. ;-) | |
Pekr 7-Dec-2012 [4608x2] | OK, I just hope that some Chinese investor isn't going to request you to close source Red in order to become their national selected language of choice :-) |
Some nice business oportunities are really welcomed. There are some fine mobile players in China - ZTE, Huawei, maybe even HTC? HTC could buy Amiga name, I alrady suggested it to them :-) Then all dots connect and then they will bring Carl, to work ... on Red :-) | |
DocKimbel 7-Dec-2012 [4610] | Closed-source: I guess we are now all well-aware how disastrous it can be. Open-source is a superior way of building good and long-lasting software, even investors can understand that. :-) |
Steeve 7-Dec-2012 [4611] | Be careful Doc, You may bring back not only chinese investors but also some pretty girls |
Pekr 7-Dec-2012 [4612] | :-D |
DocKimbel 7-Dec-2012 [4613] | Steeve: pretty girls are not restricted to China. :-) |
Steeve 7-Dec-2012 [4614x2] | Still, one know guys who have gone to distant Asia as single and came back married. |
It's a well known trap ;-) | |
Kaj 7-Dec-2012 [4616x2] | Yeah, almost all my cousins |
I like the # suffix proposal. It stands out better than the h suffix and looks more in line with REBOL | |
Steeve 7-Dec-2012 [4618x2] | Arghhh! My first time compiling something to Red: -= Red Compiler =- Compiling red/tests/sorting.red ... *** Red Compiler Internal Error: Script Error : copy expected ran ge argument of type: number series port pair *** Where: process *** Near: [stack/push to type copy/part s] |
I ran %run-all at first and it was alright | |
DocKimbel 7-Dec-2012 [4620x3] | Looks like an issue with the changes I did for ticket https://github.com/dockimbel/Red/issues/319 |
You can try to compile it with -v 9 option to better locate the line that trigger the error. | |
Could you post your script there if short enough (else just post it to me privately or on the bugtracker)? | |
Steeve 7-Dec-2012 [4623] | Actually I know there are errors in the script since I did not try to translate it from R3 to Red. But I was expecting something else for a starter |
DocKimbel 7-Dec-2012 [4624x2] | It would be nice if we could fix that compilation bug before the new release. |
Hmm, sorry it is not related to #319, it looks more like a lexer issue. You are probably passing a datatype that is not yet implemented in Red. | |
Steeve 7-Dec-2012 [4626x2] | I cut my script and got the same error with just the following: Red [] ;*** Bottom-up-heapsort *** heapify: func [s start len comp /local step sav inc][ inc: 0 sav: s/:start ;-- search terminal leaf. step: start while [len > step: 2 * step][ ++ inc unless comp s/(++ step) s/:step [-- step] ] either step = len [++ inc][step: shift step -1] ;-- bottom-up, search insertion point loop inc [ unless comp s/:step sav [break] step: shift step -1 -- inc ] ;-- bottom-up swap loop inc [ ;-- chain swap s/:step: also sav sav: s/:step step: shift step -1 ] s/:step: sav ] |
I have not tried to translate anything... T_T | |
DocKimbel 7-Dec-2012 [4628x3] | The lexer is choking on get-word used in path...let me see that... |
Actually, it's blocking on s/(++ step), such syntax should be supported by the lexer, so there's a bug there. | |
Steeve: I have fixed the lexer bug, so it should at least load correctly now. But paren! in path are not yet compiled, so you'll get a "feature not implemented" at compilation. Also, passing a function as argument is not yet correctly handled. Also I'm unsure if s/:step: will be compiled correctly, as we haven't yet much tests for path accesses. | |
Kaj 7-Dec-2012 [4631] | All examples compile without warnings now |
DocKimbel 7-Dec-2012 [4632x2] | Thanks! |
(for testing) | |
Gregg 7-Dec-2012 [4634] | For hex notation in REBOL, I've used (albeit dynamically) a simple HEX function with issues. hex #20000001 I'm OK with the suffix approach, but if a prefix approach works I like that the prefix clues you in to what you're reading, rather than reading the number and then seeing the suffix. The question is what sigil to use, if lexical space becomes very tight, as in REBOL. Do you have any plans for &? &HFFFF000F &O77770007 ; though I don't think we need octal &B11110001 |
Maxim 7-Dec-2012 [4635] | the following are currently invalid REBOL notations (the first three load in R2 but get scrambled) I prefer the first tree, since they are pretty obvious without any knowledge of the language. 16#FFFF000F 8#7124554764 2#0110110101 H#FFFF000F O#7124554764 B#0110110101 |
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