World: r3wp
[!REBOL3]
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Sunanda 26-Oct-2010 [5719x2] | Thanks for the analysis. I kinda know the reason, but the documentation should make the limits clear ro those who do not know (or have not thought through the implcations of) the internal representations. |
INFs are a low priority.....But they are also an interesting REBOL phenomena...Unserialisable values that do not always equal other same-sized INFs :) xx: array/initial 100 as-pair 1e44 -1e44 length? unique xx == 100 ;; 100 separate infinities ... Cantor would be proud! (first xx/1) = (first xx/1) == true (first xx/1) = (first xx/2) == true ;; or perhaps its just UNIQUE having a bad day xx/1 = xx/2 ;; or perhaps not == false | |
Oldes 26-Oct-2010 [5721] | To have infinity values would be good, but the current behaviour is a bug of course. The positive/negative infinity must be loadable as a normal number, not just in pairs. |
Sunanda 26-Oct-2010 [5722] | Thanks Oldes. I've curecoded the inconsistencies I've noticed: http://www.curecode.org/rebol3/ticket.rsp?id=1717 |
Ladislav 26-Oct-2010 [5723] | Sunanda, you wrote, that INF support was good, not mentioning why. Can you explain, why do you want to have it? |
Sunanda 26-Oct-2010 [5724] | INFs (and NANs) are part of the standards REBOL is coded to. It's good to match as much of the standard as possible. |
Ladislav 26-Oct-2010 [5725x4] | Hmm, that reason is not relevant, as far as I can tell. Example: IEEE754 standards define comparisons, but REBOL uses a different approach. |
So, REBOL is not "coded to standards", rather it uses the available features of the hardware. | |
In my opinion, the exclusion of infinities from the decimal! datatype was intended, exactly because REBOL was not "coded to standards". (I may be wrong, not being Carl, though) | |
In general, the usage of infinities in programming languages is not required by any standards, as far as I can tell. In my opinion, it is only "supported". | |
Sunanda 26-Oct-2010 [5729] | REBOL clearly uses parts of the standard -- raising errors! rather than returning NANs or INFs is generally a useful approach for most programmers. But, given it (now) partially implements INFs, some clarity about what parts (and why) would be useful too. |
Ladislav 26-Oct-2010 [5730] | Well, I feel it may be the other way around - when not wanting to write much code, it is easier to have INFs than not. The removal of INFs requires to take care of all the exceptions. |
Cyphre 26-Oct-2010 [5731] | Pekr, Andreas, ChristianE and anyon who is interested...I published win console R3core version that should show correctly ut8 characters. IF you can try to dsiplay your native language chars just download it from here: http://cyphre.mysteria.cz/tests/r3-core-a107-console.zip and let me know if it works for you. Note that this version doesn't work well with STDIN/OUT redirection yet. I didn't want to waste time on this part yet until the normal console STDIN/OUT works well. |
ChristianE 26-Oct-2010 [5732] | Cyphre, this looks like a nice acomplishment. Those aren't exactly letters from my native language's alphabet, but your console nicely prints >> print to string! #{e282acc2aec3a4c59fc691cea3ceaecfae} when startet in a cmd.exe console reusing that as well as opening it's own console if double clicked from desktop. |
Andreas 26-Oct-2010 [5733x5] | Cyphre, does it allow you to input "special" characters as well? |
Yes, seems it does. | |
And it launches nicely from both a pre-existing console as well as from the explorer. | |
Very nice, Cyphre! | |
(Ah yes, console not GUI build, so that last part is for free :) | |
Pekr 26-Oct-2010 [5738] | ok, what about having console (not GUI) build of R3, and loading View extension? Could it work? |
Andreas 26-Oct-2010 [5739x2] | sure, it does work already. |
if you remember my console build you downloaded earlier :) | |
Pekr 26-Oct-2010 [5741x2] | yes ... that is why I am confused, because there was a saying, that under Windows, you can't have both worlds - console, and GUI app in one, and that e.g. even python uses two separate executables ... |
Very good work. I confirm that under Vista (32 bit) it works well so far. Both from the icon, and from the cmd console. I don't even have to change fonts ... | |
Henrik 26-Oct-2010 [5743x2] | I'm not sure what chars to expect from the above test string, but it doesn't work for me. |
That is, I get ?? along with a few other chars that I'm not sure are outside the ascii range. | |
Pekr 26-Oct-2010 [5745] | I get "?Ra(with umlaut)s(with hook under it)???" |
Henrik 26-Oct-2010 [5746x3] | I get a plain "?(registered trademark)(a with umlaut)s(integral sign)S??" |
um... what page do people get with www.rebol.com? | |
ah, nevermind. seems to be a DNS issue. | |
Sunanda 26-Oct-2010 [5749x2] | Carl asking for comments (it's a Curecode, not the usual blog RFC, so might get overlooked): http://www.curecode.org/rebol3/ticket.rsp?id=1719&cursor=1 |
DNS problem: http://www.rebol.com/article/0493.html | |
Maxim 26-Oct-2010 [5751] | we can't comment its reviewed... but I would call it diff not compare. since if they are equal it would return none, its a much better word than compare. |
Oldes 26-Oct-2010 [5752] | you can comment, just must be logged in. |
BrianH 26-Oct-2010 [5753] | Agreed, Maxim. |
Maxim 26-Oct-2010 [5754] | yeah... just added a simple comment which makes it obvious that diff is a better name. |
BrianH 26-Oct-2010 [5755] | Look at 1718 and 1720 too. |
Maxim 26-Oct-2010 [5756x2] | commented 1720 |
1718 looks good to me.. though the name is hard to map to the effect it has... I didn't find a better one. | |
BrianH 26-Oct-2010 [5758] | I think FORFIND was one (worse, and by me) suggestion, when Carl brought this up in a blog last year. |
Maxim 26-Oct-2010 [5759] | I just had a flash!!! when data value [ do something ] |
BrianH 26-Oct-2010 [5760] | Nothing particularly loop-y or sequency about WHEN, not like *ALL. |
GrahamC 26-Oct-2010 [5761x3] | we already have difference |
I have suggest 'diverge? | |
ed | |
Maxim 26-Oct-2010 [5764x2] | not difference.... diff. |
actually difference could handle series . right now its not used on series... or is it? | |
BrianH 26-Oct-2010 [5766] | It is, and differently. |
GrahamC 26-Oct-2010 [5767] | that's the point .. we already have difference .. so we should choose a different word |
BrianH 26-Oct-2010 [5768] | It treats the series like sets. One of the group with UNIQUE. |
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