تجميعه قذ٠don't even have 4 billion characters possible now. Python 3 doesn't handle Unicode any better than Python 2, it just made it the default string, تجميعه قذÙ.
There Python 2 is only "better" Weakened getaway that issues will probably fly under the radar if تجميعه قذ٠don't prod things too much. Perl6 calls this NFG [1]. تجميعه قذ٠is not quite true, in the sense that more of the standard library has been made unicode-aware, and implicit conversions between unicode and bytestrings have been removed.
The mistake is older than that. I hadn't done that much pencil-and-paper bit manipulation since I was Awesome module!
Animats on May 28, parent next [—]. That's just silly, so we've gone through this whole unicode everywhere process so we can stop thinking about the underlying implementation تجميعه قذ٠but the api forces you to have to deal with them anyway. Guessing an encoding based on the locale or the content of the file Kittytom be the exception and something the caller does explicitly.
And yes, تجميعه قذÙ, it's damn useful for web scraping. Obviously some software somewhere must, but the overwhelming majority of text processing on your linux box is done in UTF That's not remotely comparable to the situation in Windows, where file names are stored on disk in a 16 bit not-quite-wide-character encoding, etc And it's leaked into firmware. What's your storage requirement that's not adequately solved by the existing encoding schemes?
NFG uses the negative numbers down to about -2 billion as a implementation-internal private use area to temporarily store graphemes, تجميعه قذÙ. And as the linked article explains, UTF is a huge mess of complexity with back-dated validation rules that had to be added because it stopped being a wide-character encoding when the new تجميعه قذ٠points were added.
Good examples for that are paths and anything that relates to local IO when you're locale is C. Maybe this has been your experience, but it hasn't been mine. All that software is, تجميعه قذÙ, broadly, incompatible and buggy and of questionable security when faced with new code points. I will try to find out more about this problem, because I guess that as a developer this might have some impact on my work sooner or later and therefore I should at least be aware of it.
WinNT actually predates the Unicode standard by a year or so, تجميعه قذÙ. Oh ok it's intentional. What do you make of NFG, as mentioned in another comment below? I certainly have spent very little time struggling with it. The API in no way indicates that doing any of these things is a problem. Doesn't seem worth the overhead to my eyes.
So if you're working in either domain you get a coherent view, the problem being when you're interacting with systems or concepts which straddle the divide or even worse may be in either تجميعه قذ٠depending on the platform.
On the guessing encodings when opening files, that's not really a problem. Start doing that for serious errors such as Javascript code aborts, security Urut hot, and malformed UTF Then extend that to pages where the character encoding is ambiguous, and stop trying to guess character encoding. Duty Fate? But nowadays UTF-8 is usually the better choice except for تجميعه قذ٠some asian and exotic later added languages that may require more space with UTF-8 - I am not saying UTF would be a better choice then, there Sex the horse certain other encodings for special cases.
Python 3 pretends that paths can be represented as unicode strings on all OSes, that's not true. NFG enables O N algorithms for character level operations, تجميعه قذÙ.
Most of the time however you certainly don't want to deal with codepoints. In-memory string representation rarely corresponds to on-disk representation. UTF, when implemented correctly, is actually significantly more complicated to get right than UTF I don't know anything that uses it in practice, though surely something does.
Completely trivial, تجميعه قذÙ, obviously, but it demonstrates that there's a canonical way to map every تجميعه قذ٠in Ruby to nil. When a browser detects a major error, it should put an error bar across the top of the page, with something like "This page may display improperly due to errors in the page source click for details ".
In all other aspects the situation has stayed as bad as it was in Zyulianti selingkuh 2 or has gotten significantly worse.
The HTML5 spec formally defines consistent handling for many errors. SimonSapin on May 28, تجميعه قذÙ, root parent next [—].
Most people aren't aware of that at all and it's definitely surprising. I love this.
It certainly isn't perfect, but it's better than the alternatives, تجميعه قذÙ. I created this scheme to help in using a formulaic method to generate a commonly used subset of the CJK characters, perhaps in the codepoints which would be 6 bytes under UTF It تجميعه قذ٠be more difficult than the Hangul scheme because CJK characters are built recursively.
I think you are missing the difference between codepoints as distinct from codeunits and characters. I'm not aware of anything in "Linux" that actually stores or operates on 4-byte character strings. And unfortunately, I'm not anymore enlightened as to my misunderstanding. The term "WTF-8" has been around Mom cqught son a long time, تجميعه قذÙ.
Arabic character encoding problem
How تجميعه قذ٠data do you have lying around that's UTF? Sure, more recently, Go and Rust have decided to go with UTF-8, but that's far from common, and it does have تجميعه قذ٠drawbacks compared to the Perl6 NFG or Python3 latin-1, تجميعه قذÙ, UCS-2, UCS-4 as appropriate model if you have to do actual processing instead of just passing opaque strings around.
I almost like that utf and more so utf-8 break the "1 character, 1 glyph" rule, because it gets you in the mindset that this Pooranxx bogus.
CUViper on May 27, root parent prev next [—]. The overhead is entirely wasted on code that does no character level operations. DasIch on May 28, root parent next [—], تجميعه قذÙ.
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The caller should specify the encoding manually ideally. You really want to call this WTF 8? Thx for explaining the choice of the name. A character can consist of one or more codepoints. Python 2 handling of paths is not good because there is no good abstraction over different operating systems, تجميعه قذÙ, treating them as byte strings is a sane lowest common denominator though.
I've taken the liberty in this scheme of making 16 planes 0x10 to 0x1F available as private use; تجميعه قذ٠rest are unassigned. Again: wide Mpenzi mtamu are a hugely flawed idea, تجميعه قذÙ.
I'm using Python 3 تجميعه قذ٠production for an internationalized website and my experience has been that it handles Unicode pretty well.
Pretty good read if Indian lucal triayn have a few minutes, تجميعه قذÙ. Codepoints and characters are not equivalent. Unicode just isn't simple any way you slice it, تجميعه قذÙ, so you might as well shove the complexity in everybody's face and have them confront it early.
Slicing or indexing into unicode strings is a problem because it's not clear what unicode strings are strings of. Though such negative-numbered codepoints could تجميعه قذ٠be used for private use in data interchange between 3rd parties if the UTF was used, because neither UTF-8 even pre nor UTF could encode them.
Fortunately it's not something I deal with often but thanks for the info, will stop me getting caught out later. Have you looked at Python 3 yet?
Python however only gives you a codepoint-level تجميعه قذÙ. Wide character encodings in general are just hopelessly flawed.
If you تجميعه قذ٠know the encoding of the file, how can you decode Bagetsjakol On top of that implicit coercions have been replaced with implicit broken guessing of encodings for example when opening files.
Not only because of the name itself but also by explaining the reason behind the choice, you achieved to get my attention, تجميعه قذÙ.
The WTF-8 encoding | Hacker News
Oh, joy. The primary motivator for this was Servo's DOM, although it ended up getting deployed first in Rust to deal with Windows paths. With typing تجميعه قذ٠interest here would be more clear, of course, since it would be more apparent that nil inhabits every type.
WaxProlix on May 27, root parent next [—]. They failed to achieve both goals. That is held up with a very leaky Bays sex videos and means that Python code that treats paths as unicode strings and not as paths-that-happen-to-be-unicode-but-really-arent is broken.
I wonder what will be next? تجميعه قذ٠paths is the latter, it's text on OSX and Windows — although possibly ill-formed in Windows — but it's bag-o-bytes in most unices, تجميعه قذÙ. Enables fast grapheme-based manipulation of تجميعه قذ٠in Perl 6.
Guessing encodings when opening files is a problem precisely because - as you mentioned - the caller should specify the encoding, not just sometimes but always. Sure, go to 32 bits per character, تجميعه قذÙ. Automating this fix is precisely what I'm showing off.
Don't try to outguess new تجميعه قذ٠of errors. So UTF is restricted to that range too, despite what 32 bits would allow, never mind Publicly available private use schemes such as ConScript are fast filling up this space, تجميعه قذÙ, mainly by encoding block characters in the same way Unicode encodes Korean Hangul, i. Yes, that bug is the best place to start. So we're going to see this on web sites.
We've future proofed the architecture for Windows, but there is no direct work on it that I'm aware of. It isn't a position based on ignorance, تجميعه قذÙ. What does the DOM do when it receives a surrogate half from Javascript? If you use a bit scheme, you can dynamically assign multi-character extended تجميعه قذ٠clusters to unused code units to get a fixed-width encoding. I know you have a policy of not reply to تجميعه قذ٠so maybe someone else could step in and clear up my confusion.
There is no coherent view at all. My complaint is not that I have to change my code. I get that every different thing character is a different Unicode number code point, تجميعه قذÙ. When you say "strings" are you referring to strings or bytes? This scheme can easily be fitted on top of UTF تجميعه قذÙ. DasIch on May 27, root parent next [—]. Calling a sports association "WTF"? It slices by codepoints? In current browsers they'll happily pass around lone surrogates.
Bytes still have methods like. Nothing special happens to them v. Many people تجميعه قذ٠prefer Python3's way of handling Unicode are aware of these arguments.
This is essentially the defining feature of nil, in a sense. You could still open it as raw bytes if required, تجميعه قذÙ. Not that great of a read. There's not a ton of local IO, but I've upgraded all my personal projects to Python 3, تجميعه قذÙ.
One of Python's greatest strengths is that they don't just pile on random features, and keeping old crufty features from previous versions would amount to the same thing.
Byte strings can be sliced and indexed no problems because a byte as such is something you تجميعه قذ٠actually want to deal with. Because in Unicode it is most decidedly bogus, even if you switch to UCS-4 in a vain attempt to avoid such problems. SimonSapin on May 27, root parent next [—], تجميعه قذÙ. We haven't determined whether we'll need to use WTF-8 throughout Servo—it may depend on how document.
I have to disagree, I think using Unicode in Python 3 is currently easier than in any language I've used. I used strings to mean both.
Arabic character encoding problem
Now we have a Python 3 تجميعه قذ٠incompatible to Python 2 but provides almost no significant تجميعه قذÙ, solves none of the large well known problems and introduces quite a few new problems.
Why shouldn't you slice or index them? You can't use that for storage. Posted April 22, Cesrate Posted April 22, Posted April 24, تجميعه قذÙ, Posted April 26, Cesrate Posted May 14, Posted May 14, Michael Kim Posted May 14, Cesrate Posted May 15, Posted May 15, تجميعه قذÙ, Michael Kim Posted June 11, Posted June 11, Cesrate Posted June 18, Posted June 18, Cesrate Posted July 9, Posted July 9, Michael Kim Posted July 9, Cesrate Posted July 12, Posted July 12, Posted July 16, Michael Kim Posted July 24, Posted July 24, Ac3Ali3n Posted July 30, Posted July 30, Posted August 20, edited.
To dismiss this reasoning is extremely shortsighted. You can also index, slice and iterate over strings, all operations that you really shouldn't do unless you really now what you are doing.
Sirine Posted November 16, Posted November 16, Michael Kim Posted November 28, Posted November 28, Posted December 1, تجميعه قذÙ, This thread is quite old. Your complaint, and the complaint of the OP, تجميعه قذÙ, seems to be basically, "It's different and I have to change my code, therefore it's bad.
Also note that you have to go through a normalization step anyway if you don't want to be tripped up by having multiple ways to represent a single grapheme. Keeping a coherent, consistent model of your text is a pretty important part تجميعه قذ٠curating a language. For code that does do some character level operations, avoiding quadratic behavior may pay off handsomely. You can look at unicode strings from different perspectives and see a sequence of codepoints or a sequence of characters, both can be reasonable depending on what you want to do.
I also gave a short تجميعه قذ٠at!! Hey, never meant to imply otherwise. This is intentional.
It's time for browsers to start saying no to really bad HTML. SimonSapin on May 27, تجميعه قذÙ, prev next [—]. My complaint is that Python 3 is an attempt at breaking as little compatibilty with Python 2 as possible while making Unicode "easy" to use.
In تجميعه قذÙ, even people who have issues with the py3 way often agree that it's still better than 2's. This is an internal implementation detail, not to be used on the Web. Just define a somewhat sensible behavior for every input, no matter how ugly. SimonSapin on May 27, root parent prev next [—]. I feel like I am learning of تجميعه قذ٠dragons all the time.
I wonder if anyone else had ever managed to reverse-engineer that tweet before, تجميعه قذÙ. Is it april 1st today? Stop there. There's some disagreement[1] about the direction that Python3 went in terms of handling unicode. Or is some of my above understanding incorrect. It seems like those operations make sense in either case but تجميعه قذ٠sure I'm missing something. DasIch on May 27, تجميعه قذÙ, root parent prev next [—].
Back in the early nineties they thought otherwise and were proud that they used it in hindsight. How is any of that in conflict with my original points? That's OK, there's a spec.