World: r4wp
[!REBOL3] General discussion about REBOL 3
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BrianH 25-Feb-2013 [1078] | I think we have a ticket about that TO error ignoring problem. |
Andreas 25-Feb-2013 [1079] | Brian, it's not an error. TO/THRU support integers. |
Rebolek 25-Feb-2013 [1080] | Andreas, you're right! That's a great feature! |
BrianH 25-Feb-2013 [1081x2] | to [2] should work, to 2 shouldn't. |
But when to 2 doesn't work, TO doesn't complain. | |
Rebolek 25-Feb-2013 [1083] | Why it shouldn't work? It's great. |
Andreas 25-Feb-2013 [1084] | https://github.com/rebol/r3/blob/master/src/core/u-parse.c#L487 |
Rebolek 25-Feb-2013 [1085] | >> parse "abcdefgh" ["abc" to 2 p: (probe p)] bcdefgh == false >> parse "abcdefgh" ["abc" to 7 p: (probe p)] gh == false |
Maxim 25-Feb-2013 [1086] | Rebolek, unfortunatly, you are mis-using TO. TO is a search. what you are doing is supposed to be done with SKIP |
BrianH 25-Feb-2013 [1087] | Is there a skip operation in PARSE? |
Andreas 25-Feb-2013 [1088] | Maxim: SKIP does relative positioning, TO/THRU do absolute positioning. |
BrianH 25-Feb-2013 [1089x2] | Well, that behavior seems like an undocumented feature. And a useful one :) |
Wait, that's right, 2 skip, not skip 2. | |
Maxim 25-Feb-2013 [1091] | what? heh? yuk. sorry, but how do I then search for integers? |
BrianH 25-Feb-2013 [1092] | to [2] |
Maxim 25-Feb-2013 [1093x2] | I find that becomes quite assymetric in use. if TO is going to change behaviors... relative in some cases and absolute in others... using weird datatype conventions (which seem to be completely different from the rest) then I'd rather have a new Absolute keyword which works just like to on All datatypes. |
just like TO 2 , but on All datatypes. | |
Andreas 25-Feb-2013 [1095] | Only what would `absolute #"a"` mean? |
Gregg 25-Feb-2013 [1096] | Move to Parse if this applies to R2 as well. |
Andreas 25-Feb-2013 [1097] | Applies to R2 as well, so let's move to "Parse". |
AdrianS 25-Feb-2013 [1098] | Andreas, did you discover this by just playing with parse or did you read through the source? I wondering if there are other goodies in there. |
Andreas 25-Feb-2013 [1099x2] | Reading the source. |
But this was pretty much the first thing I started looking at, which already lead me down the rabbit hole of testing it in R2 and R3, looking for documentation, filing a documentation request against R3 and discovering and reporting a bug against R3 (and I'll probably continue down the hole and fix that bug). So I didn't get much further towards other goodies, yet :) | |
Scot 25-Feb-2013 [1101] | A worthwhile hole, me thinks. |
Cyphre 26-Feb-2013 [1102] | Guys, was there any discussion about the COMPRESS/DECOMPRESS natives in R3? Do we really need these functions to use some 'custom' compression format that noone in the world uses and when it is based on zlib anyway? Wouldn't be better to change this in R3 and use for example ZIP format? What do you think? I remember Carl saying the custom format is more efficient but I tried to compress couple binary or text files to compare with ZIPped results and I don't see any significant difference that would be worth the current format incompatibility. |
Sunanda 26-Feb-2013 [1103] | Earlier discussion of COMPRESS vs Zlib.....Basically, the two are almost identical already, so it should not take much to make something that is compatible: http://curecode.org/rebol3/ticket.rsp?id=328 |
Henrik 26-Feb-2013 [1104] | I agree that it should be easily compatible with other compression formats, but it does not take much to make it compatible (can be done via a mezz). |
Cyphre 26-Feb-2013 [1105x2] | Sunanda, thanks for the link. |
Henrik, I was more thinking to rip the old zlib code out of Rebol and put there some more actual(or even smaller) implementation (latest zlib or miniz etc.) | |
Pekr 26-Feb-2013 [1107x2] | maybe, historically, also the licence was a problem? Remember, R3 was not open-sourced back at that time ... |
I am fully for new, more standard way. I e.g. did not like .RIP format. E.g. Winamp uses normal zip format for their skin modules, etc. I would like to just hit enter or double click, getting into the archive/package. | |
Henrik 26-Feb-2013 [1109x2] | Cyphre: that sounds fine to me. |
Pekr, I don't think .RIP was meant for basic temporary compression, but a more fully fledged file format to store serialized REBOL data efficiently? | |
Pekr 26-Feb-2013 [1111x3] | Henrik - RIP was crap :-) |
I would prefer my app being packaged in default zip anyday ... | |
For me it was just another way of reinventing the wheel, with almost no added value ... | |
Henrik 26-Feb-2013 [1114x2] | Pekr, I don't think it's the same thing, plain and simple. |
Would you not want a single, universal way to store and retrieve application state from disk? ZIP does not do that. | |
Pekr 26-Feb-2013 [1116x2] | why not? Because you can just 'do the .rip? I would not mind do decompress %my-app.zip :-) |
Well, then I am wrong, ok. Not sure .rip format was anything in common with app state serialisation. I thought it was just plain and simple packaging mechanism - having a header, and binary container for compressed app modules/scripts ... | |
Henrik 26-Feb-2013 [1118x2] | Zip does not manage bindings or words transparently. It's simply not the same thing. |
(and if it turns out, that it was not the goal with .rip, then the goal should be changed to do this) | |
Pekr 26-Feb-2013 [1120] | Then we talk two different things though. But - don't push anything like .rip on me, just to package my app. I want more transparent way, a zip archive I can inspect in Total Commander, Windows Explorer, etc. |
Henrik 26-Feb-2013 [1121] | I would not want that a requirement for .rip anyway. |
Oldes 26-Feb-2013 [1122] | If you want something modern, add support for LZMA compression. And please don't mix compress with zip - zip is high level, compress should be low-level function (idealy supporting more formats) |
Pekr 26-Feb-2013 [1123] | Oldes - we don't mix anything. It was zip vs rip discussion. I say - let's .rip RIP :-) |
Oldes 26-Feb-2013 [1124] | regarding zip versus rip - I can imagine runable zip - just add special file in it which would be used as a starter - actually that's how works for example APK, which is zip with different extension. |
Henrik 26-Feb-2013 [1125] | I say - let's .rip RIP :-) - how can you say this, when we want a way to store application states? |
Pekr 26-Feb-2013 [1126] | store them in zip, simply some storage format inspectable from other tools. I still don't understand, what is so special on rip, it is imo just a storage format, nothing special. |
Henrik 26-Feb-2013 [1127] | Pekr, there is a lot more to storing application states than simply zipping data. |
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