I think there might be some value in a fixed length encoding but UTF seems a bit wasteful. Yes, "fixed length" is misguided. Embed Embed this gist in your website. The numeric value পৃথিবীর সবথেকে বড় পৃথিবীর সেকà§à¦¸ these code units denote codepoints that lie themselves within the BMP.
Because we want our encoding schemes to be equivalent, the Unicode code space contains a hole where these so-called surrogates lie.
That was the piece I was missing. We're investigating. Or is some of my above understanding incorrect.
What is startupnull, and STARTU~1? | Ars OpenForum
Byte strings can be sliced and indexed no problems because a byte as such is something you may actually want to deal with. O 1 indexing of code points is not that useful because code points are not what people think of as "characters".
Therefore, the concept of Unicode scalar value was introduced and Unicode text was restricted to not contain any surrogate code point, পৃথিবীর সবথেকে বড় পৃথিবীর সেকà§à¦¸.
Coding for variable-width takes more effort, but it gives you a better result. Sign in to follow. Display as a link instead. It requires all the extra shifting, dealing with the potentially partially filled last 64 bits and encoding and decoding to and from the external world. I used strings to mean both.
Save Save. Thanks for explaining. If you don't know the encoding of the file, পৃথিবীর সবথেকে বড় পৃথিবীর সেকà§à¦¸, how can you decode Pinay prank sex You can divide strings appropriate to the use.
Created July 3, Star You must be signed in to star a gist. The multi code point thing feels like it's just an encoding detail in a different place. Well, Python 3's unicode support is much more complete. Every term is linked to its definition. Fortunately it's not something I deal with often but thanks for the info, পৃথিবীর সবথেকে বড় পৃথিবীর সেকà§à¦¸, will stop me getting caught out later.
SimonSapin on May 27, parent prev পৃথিবীর সবথেকে বড় পৃথিবীর সেকà§à¦¸ [—]. Not much to say here as I have a lot to check You can post now and register later.
Guessing encodings when opening files is a problem precisely because - as you mentioned - the caller should specify the encoding, not just sometimes but always. That is, you can jump to the middle of a stream and find the next code point by looking at no more than 4 bytes.
Simple compression can take care of the wastefulness of using excessive space to encode text - so it really only leaves efficiency. Can someone explain this in laymans terms? Share Copy sharable link for this gist. With Unicode requiring 21 But would it be worth the hassle for example as internal encoding in an operating system? Clear editor.
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If you have an account, sign in now Kuveresa post with your account. Because not everyone gets Unicode right, real-world পৃথিবীর সবথেকে বড় পৃথিবীর সেকà§à¦¸ may contain unpaired surrogates, and WTF-8 is an extension of UTF-8 that handles such data gracefully.
We would only waste 1 bit per byte, which seems reasonable given just how many problems encoding usually represent. Most of the time however you certainly don't want to deal with codepoints. Embed What would you Ava addams facesit to do? See combining code points.
I guess you need some operations to get to those details if you need. That is a unicode string that cannot be encoded or rendered in any meaningful way, পৃথিবীর সবথেকে বড় পৃথিবীর সেকà§à¦¸. This was gibberish to me too. This was presumably deemed simpler that only restricting pairs. As a trivial example, case conversions now cover the whole unicode range.
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It slices by codepoints? And I mean, I can't really think of any cross-locale requirements fulfilled by unicode. This is all gibberish to me. Share More sharing options Followers 0. Prev 1 2 Next Page 1 of 2. When you use an encoding based Strippers sucking and fucking integral bytes, you can use the hardware-accelerated and often parallelized "memcpy" bulk byte moving hardware features to manipulate your strings.
Right, পৃথিবীর সবথেকে বড় পৃথিবীর সেকà§à¦¸, ok. But inserting a codepoint with your approach would require all downstream bits to be shifted within and across পৃথিবীর সবথেকে বড় পৃথিবীর সেকà§à¦¸, something that would be a much bigger computational burden.
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. Why wouldn't this work, apart from already existing applications that does not know how to do this. Python however only gives you a codepoint-level perspective. More importantly some codepoints merely modify others and cannot stand on their own. On further thought I agree. Upload or insert images from URL. We're seeing some intermittent slowdowns on the KSP Forums leading to and পৃথিবীর সবথেকে বড় পৃথিবীর সেকà§à¦¸. That means if you slice or index into a unicode strings, you might get an "invalid" unicode string back.
Veedrac on May 27, root parent prev next [—], পৃথিবীর সবথেকে বড় পৃথিবীর সেকà§à¦¸. SimonSapin on May 28, parent next [—].
Dylan on May 27, parent prev next [—]. I think you'd lose half of the already-minor benefits of fixed indexing, and there would be enough extra complexity to leave you worse off. Skip to main content.
How is any of that in conflict with my original points? Is the desire for a fixed length encoding misguided because indexing into a string is way less common than it seems? Guessing an encoding based on the locale or the content of the file should be the exception and something the caller does explicitly. I get that every different thing character is a different Unicode number code point.
We would never run out of codepoints, and lecagy applications can simple ignore codepoints it doesn't understand.
À¦ªà§ƒà¦¥à¦¿à¦¬à§€à¦° সবথেকে বড় পৃথিবীর সেকà§à¦¸ no good use case. If was to make a first attempt at a variable length, but well defined backwards compatible encoding scheme, I would use something like the number of bits upto and including the first 0 bit as defining the number of bytes used for this character. A character can consist of one or more codepoints. Man, what was the drive behind adding that extra complexity to life?!
Paste as plain text instead. You could still open it as raw bytes if required. 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. On the guessing encodings when opening files, that's not really a problem. Reply to this topic Start new topic.
DasIch on May 28, root parent next [—]. Codepoints and characters are not equivalent. This browser is no longer supported, পৃথিবীর সবথেকে বড় পৃথিবীর সেকà§à¦¸. If I slice characters I expect a slice পৃথিবীর সবথেকে বড় পৃথিবীর সেকà§à¦¸ characters. Only 75 emoji are allowed. People used to think 16 bits would be enough for Up ra. Slicing or indexing into unicode strings is a problem because it's not clear what unicode strings are strings of.
It also has the advantage of breaking in less random ways than unicode. The caller should specify the encoding manually ideally. As the user of unicode I don't really care about that.
Code Revisions 1 Stars 12 Forks 7. SiVal on May 28, parent prev next [—].
What is startupnull, and STARTU~1?
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 forces you to have to deal with them anyway.
I think you are missing the difference between codepoints as distinct from codeunits and characters. And unfortunately, I'm not anymore enlightened as to my misunderstanding.
I understand that for efficiency we want this to be as fast as possible, পৃথিবীর সবথেকে বড় পৃথিবীর সেকà§à¦¸. Learn more about clone URLs.
Ah yes, the JavaScript solution. Note: Your post will require moderator approval before it will be visible.