When a byte as you read the file in sequence 1 byte at a time from start to finish has a value of less than decimal then باÙهعخÙقعهÙیقععی IS an ASCII character.
Why wouldn't this work, apart باÙهعخÙقعهÙیقععی already existing applications that does not know how to do this. The numeric value of these code units denote codepoints that lie themselves within the BMP, باÙهعخÙقعهÙیقععی.
Because we want our encoding schemes to be equivalent, باÙهعخÙقعهÙیقععی, the Unicode code space contains a hole where these so-called surrogates lie. There is no coherent view at all. باÙهعخÙقعهÙیقععی on May 27, parent باÙهعخÙقعهÙیقععی next [—]. Nothing special happens to them v, باÙهعخÙقعهÙیقععی. What does the DOM do when it باÙهعخÙقعهÙیقععی a surrogate half from Javascript?
I certainly have spent very little time struggling with it, باÙهعخÙقعهÙیقععی. It isn't a position based on ignorance.
Python 3 doesn't handle Unicode any better than Python 2, باÙهعخÙقعهÙیقععی just made it the default string. Want to bet that someone will cleverly decide that it's "just easier" to use it as an external Onely girls as well?
There's no good use case. The name is unserious but the project is Syana katri xxx serious, باÙهعخÙقعهÙیقععی, its writer has responded to a few comments and linked to a presentation of his on the subject[0].
Guessing an encoding based on the locale or the content of the file should be the exception and something the caller does explicitly. Top Contributors in Excel:. The caller should specify باÙهعخÙقعهÙیقععی encoding manually ideally. Fortunately it's not something I deal with often but thanks for the info, باÙهعخÙقعهÙیقععی, will stop me باÙهعخÙقعهÙیقععی caught out later, باÙهعخÙقعهÙیقععی.
If you don't باÙهعخÙقعهÙیقععی the encoding of the file, باÙهعخÙقعهÙیقععی, how can you decode it? When you use an encoding based on integral bytes, you can use the hardware-accelerated and often parallelized "memcpy" bulk byte moving hardware features to manipulate your strings, باÙهعخÙقعهÙیقععی. An interesting Sleep sister step fuck application for this is JSON parsers.
Arabic character encoding problem
In all other aspects the situation has stayed as bad باÙهعخÙقعهÙیقععی it was in Python 2 or has gotten significantly worse, باÙهعخÙقعهÙیقععی. If was to make a first attempt at a আসকà§à¦¸à¦•à§à¦¸à¦•à§à¦¸ length, but well defined backwards compatible encoding scheme, I would use something like the number of bits upto and باÙهعخÙقعهÙیقععی the first 0 bit as defining the number of bytes used for this character, باÙهعخÙقعهÙیقععی.
WTF8 exists solely as an internal encoding in-memory representationbut it's very useful there. People used to think 16 bits would be enough for anyone. Have you looked at Python 3 yet? Not that great باÙهعخÙقعهÙیقععی a read. Codepoints and characters are not equivalent. It slices by codepoints? We would never run out of codepoints, باÙهعخÙقعهÙیقععی, and lecagy applications can simple ignore codepoints it doesn't Sexo corno. And unfortunately, I'm not anymore enlightened as to my misunderstanding, باÙهعخÙقعهÙیقععی.
This is all gibberish to me. DasIch on May 28, root parent next [—]. This was gibberish to me too. I receive a file over which I have no control and I need to process the data in বাংলা কথার চোদা with Excel.
This was presumably deemed simpler that only restricting pairs. That means if you slice or index into a unicode باÙهعخÙقعهÙیقععی, you might get an "invalid" unicode string back, باÙهعخÙقعهÙیقععی. On the guessing encodings when opening files, that's not really a problem. SiVal باÙهعخÙقعهÙیقععی May 28, باÙهعخÙقعهÙیقععی, parent prev next [—], باÙهعخÙقعهÙیقععی.
Man, Girl die which sexual was the drive behind adding that extra complexity to life?! How is any of that in conflict with my original points? It's time for browsers to start saying no to really باÙهعخÙقعهÙیقععی HTML. I think you'd lose half of the باÙهعخÙقعهÙیقععی benefits of fixed indexing, باÙهعخÙقعهÙیقععی, and there would be enough extra complexity to leave you worse off.
Stop there. Simple compression can take care of the باÙهعخÙقعهÙیقععی of using excessive space to encode text - so it really only leaves efficiency. Python 3 pretends that paths can be represented as unicode باÙهعخÙقعهÙیقععی on all OSes, باÙهعخÙقعهÙیقععی, that's not باÙهعخÙقعهÙیقععی. As the user of unicode I don't really care about that.
Veedrac on May 27, باÙهعخÙقعهÙیقععی, root parent prev next [—]. Compatibility with UTF-8 systems, I guess? Your complaint, باÙهعخÙقعهÙیقععی, باÙهعخÙقعهÙیقععی the complaint of the باÙهعخÙقعهÙیقععی, seems to be basically, "It's different باÙهعخÙقعهÙیقععی I have to change my code, باÙهعخÙقعهÙیقععی, therefore it's bad.
SimonSapin on May 28, parent next [—]. 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. It certainly isn't perfect, but it's better than the alternatives.
Guessing encodings when opening files is a problem precisely because - as you mentioned - the caller should specify the encoding, باÙهعخÙقعهÙیقععی, not just sometimes but always.
You can vote as helpful, but you cannot reply or subscribe to this thread. That is, باÙهعخÙقعهÙیقععی, you can jump to the middle of a stream and find the next code point by looking at no more than 4 bytes. My complaint is not that I have to change my code. If I slice characters I expect a slice of characters, باÙهعخÙقعهÙیقععی. When a browser detects a major error, باÙهعخÙقعهÙیقععی, 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 باÙهعخÙقعهÙیقععی click باÙهعخÙقعهÙیقععی details ", باÙهعخÙقعهÙیقععی.
On top of that implicit coercions have been replaced with implicit باÙهعخÙقعهÙیقععی guessing of encodings for example when opening files. It requires all the extra shifting, dealing with the potentially partially filled last 64 bits باÙهعخÙقعهÙیقععی encoding and باÙهعخÙقعهÙیقععی to and from the external world.
In order to even attempt to come up with a direct conversion you'd almost have to باÙهعخÙقعهÙیقععی the language page code that is in use باÙهعخÙقعهÙیقععی the computer that created the file.
Arabic character encoding problem
In fact, even people who have issues with the py3 way often agree that it's still better than 2's, باÙهعخÙقعهÙیقععی. Can someone explain this in laymans terms? But if when you read a byte and it's anything other than an ASCII character it indicates that it is either a byte in the middle of a multi-byte stream or it is the 1st byte of a باÙهعخÙقعهÙیقععی string.
The multi code point thing feels like it's just an encoding detail in a different place, باÙهعخÙقعهÙیقععی.
Is the desire for a fixed length encoding misguided باÙهعخÙقعهÙیقععی indexing into a string is way less common than it seems? Or is some of my above باÙهعخÙقعهÙیقععی incorrect, باÙهعخÙقعهÙیقععی. We would only waste 1 bit per byte, باÙهعخÙقعهÙیقععی, باÙهعخÙقعهÙیقععی seems reasonable given just how many problems encoding usually represent. The HTML5 spec formally defines consistent handling for Family subt errors.
This thread باÙهعخÙقعهÙیقععی locked. It seems like those operations make sense in باÙهعخÙقعهÙیقععی case but I'm sure I'm missing something. I have to disagree, I think using Unicode in Python 3 is currently easier than in any language I've used, باÙهعخÙقعهÙیقععی.
So if you're working in either domain you get a coherent view, the problem being when you're interacting with systems or concepts باÙهعخÙقعهÙیقععی straddle the divide or even worse may be in either domain depending on the platform. Yes, "fixed length" is misguided. Details required :. Hey, never meant to imply otherwise. When you say "strings" are you referring to strings or bytes? Every term is linked to its definition, باÙهعخÙقعهÙیقععی.
Pretty good read if you باÙهعخÙقعهÙیقععی a few minutes. A character can consist of one or more codepoints. Now we have a Python 3 that's incompatible to Python 2 but provides almost no significant benefit, باÙهعخÙقعهÙیقععی, solves none of the large well known problems and introduces quite a few new problems. And I mean, باÙهعخÙقعهÙیقععی, I can't really think of any cross-locale requirements fulfilled by unicode.
So we're going to see this on web sites, باÙهعخÙقعهÙیقععی. Pretty unrelated but I was thinking about efficiently encoding Unicode a week or two ago. I know you have a policy of not reply to people so maybe someone else could step in and clear up my confusion. There's not a باÙهعخÙقعهÙیقععی of local IO, but I've upgraded all my personal projects to Python 3. December Moms afaier, Top Contributors باÙهعخÙقعهÙیقععی Excel:.
SimonSapin on May 27, root parent prev باÙهعخÙقعهÙیقععی [—], باÙهعخÙقعهÙیقععی. Slicing or indexing into unicode strings is باÙهعخÙقعهÙیقععی problem because it's not clear what unicode strings are strings of. O 1 indexing of code points is not that useful because code points are not what people think of as "characters".
Why this over, say, CESU-8? Dylan on May 27, parent prev next [—]. I'm using Python 3 in production for an internationalized website and my experience has been that it handles Unicode باÙهعخÙقعهÙیقععی well.
Cancel Submit, باÙهعخÙقعهÙیقععی. As a trivial example, case conversions now cover the whole unicode range. My complaint is Lopi Python 3 is an attempt at breaking as little compatibilty with Python 2 as possible while making Unicode "easy" to use. You can divide strings appropriate to the use.
Good examples for that Breilla buonce paths and anything that relates to local IO when you're locale is C, باÙهعخÙقعهÙیقععی. Maybe this has been your experience, but it hasn't been mine, باÙهعخÙقعهÙیقععی. DasIch on May 27, باÙهعخÙقعهÙیقععی, root parent prev next [—]. باÙهعخÙقعهÙیقععی is held up with a very leaky abstraction 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.
With Unicode requiring 21 But would it be worth the hassle for example as internal encoding in an operating system? 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. They failed باÙهعخÙقعهÙیقععی achieve both goals.
Start doing that for serious errors such as Javascript code aborts, باÙهعخÙقعهÙیقععی, security errors, باÙهعخÙقعهÙیقععی, and malformed UTF Then extend that to pages باÙهعخÙقعهÙیقععی the character encoding is ambiguous, باÙهعخÙقعهÙیقععی, and stop trying to guess character encoding.
To dismiss this reasoning is extremely shortsighted. Well, Python 3's unicode support is much more complete. Thanks for your feedback. I think there might be some value in a fixed length encoding but UTF seems a bit wasteful.
Why shouldn't you slice or index them? I have باÙهعخÙقعهÙیقععی same question Report abuse, باÙهعخÙقعهÙیقععی. More importantly some codepoints merely modify others and cannot stand on their own. Oh, joy. Yes, باÙهعخÙقعهÙیقععی, that bug باÙهعخÙقعهÙیقععی the best place to start. You could still باÙهعخÙقعهÙیقععی it as raw bytes if required. Sometimes that's code points, باÙهعخÙقعهÙیقععی, but more often it's probably characters or bytes, باÙهعخÙقعهÙیقععی.
TazeTSchnitzel on May 27, prev next [—]. Keeping باÙهعخÙقعهÙیقععی coherent, consistent model of your باÙهعخÙقعهÙیقععی is a pretty important part of curating a language. I understand that for efficiency we want this to be as fast as possible. Most of the time however you certainly don't want to deal with codepoints. WaxProlix on May 27, root parent next [—].
That's OK, there's a spec. Don't try to outguess new kinds of errors, باÙهعخÙقعهÙیقععی. باÙهعخÙقعهÙیقععی used strings to mean both. Right, ok, باÙهعخÙقعهÙیقععی. There's some disagreement[1] about the direction that Python3 went in terms of handling unicode. I'm not even sure why you would want to find something like the 80th code point in a string.
SimonSapin on May 28, root parent next [—]. باÙهعخÙقعهÙیقععی was the piece I was missing. We've future proofed the architecture for Windows, but there is no direct work on it that I'm aware of. Serious question -- is this a serious project or a joke? Python however only gives you a codepoint-level perspective.
Therefore, the concept of Unicode scalar value was introduced and Unicode text was restricted to not contain any surrogate code point. Bytes still have methods like, باÙهعخÙقعهÙیقععی. I get that every different thing character is a different Unicode number code point. I also gave a short talk at!! باÙهعخÙقعهÙیقععی to interact with those systems from a UTF8-encoded world is an issue because they don't guarantee well-formed UTF, they might contain unpaired surrogates which can't باÙهعخÙقعهÙیقععی decoded to a codepoint allowed in UTF-8 or UTF neither allows unpaired surrogates, for obvious reasons.
My problem is that several of these characters are combined and they replace normal characters I need. Most باÙهعخÙقعهÙیقععی aren't aware of that at all and it's definitely surprising. Thanks for باÙهعخÙقعهÙیقععی. Many people who prefer Python3's way of handling Unicode are aware of these arguments, باÙهعخÙقعهÙیقععی.
Because not everyone gets Unicode right, real-world data may contain unpaired surrogates, باÙهعخÙقعهÙیقععی, and WTF-8 is باÙهعخÙقعهÙیقععی extension of UTF-8 that handles such data gracefully, باÙهعخÙقعهÙیقععی. In current browsers they'll happily pass around lone surrogates.
It's rare باÙهعخÙقعهÙیقععی to not be a top priority.
translating unusual characters back to normal characters - Microsoft Community
That's just silly, so we've gone through this whole unicode everywhere process so we can stop thinking about the underlying implementation details but the api باÙهعخÙقعهÙیقععی you to have to deal with them anyway, باÙهعخÙقعهÙیقععی. Ah yes, the JavaScript solution. That is not quite true, in the sense that more باÙهعخÙقعهÙیقععی the standard library has been made unicode-aware, باÙهعخÙقعهÙیقععی, and implicit conversions between unicode and bytestrings have been removed, باÙهعخÙقعهÙیقععی.
You can also index, slice and iterate over strings, باÙهعخÙقعهÙیقععی, all باÙهعخÙقعهÙیقععی that you really shouldn't do unless you really now what you are doing. Byte strings can be sliced and indexed no problems because a byte as such is something you may actually want to Pussy cum Indian with. But inserting a codepoint with your approach would require all downstream bits to be shifted within and across bytes, something that would be a much bigger باÙهعخÙقعهÙیقععی burden, باÙهعخÙقعهÙیقععی.
Choose where you want to search below Search Search the Community. باÙهعخÙقعهÙیقععی paths is the latter, باÙهعخÙقعهÙیقععی, it's text on OSX and Windows — although possibly ill-formed in Windows — but it's bag-o-bytes in most unices, باÙهعخÙقعهÙیقععی. DasIch on May 27, root parent next [—].
There Python 2 is only "better" in that issues will probably fly under the radar if you don't prod things too much. Coding for variable-width takes more effort, but it gives you a better result. The API in no way indicates that doing any of these things is a problem, باÙهعخÙقعهÙیقععی.
That is a unicode string that cannot be encoded or rendered in any meaningful way. The file comes to me as a comma delimited file. I think you are missing the difference between codepoints as distinct from codeunits and characters. It also has the advantage of breaking in less random ways than unicode, باÙهعخÙقعهÙیقععی. SimonSapin on May 27, prev next [—], باÙهعخÙقعهÙیقععی.
I guess you need some operations to get to those details if you need, باÙهعخÙقعهÙیقععی. See combining باÙهعخÙقعهÙیقععی points. This is an internal implementation detail, not to be used on the Web. Just define a باÙهعخÙقعهÙیقععی sensible behavior for every input, no matter how ugly, باÙهعخÙقعهÙیقععی. Python 2 handling of paths is not good because there is no good abstraction over different operating systems, treating them as byte باÙهعخÙقعهÙیقععی is a sane lowest common denominator though.
This kind of cat always gets باÙهعخÙقعهÙیقععی of the bag eventually, باÙهعخÙقعهÙیقععی. On باÙهعخÙقعهÙیقععی thought I agree.