unicode

问题 I need to restrict users input only to alpha numeric chars. If it was only in English It would be easy $[a-z]^/i But I need to do it global e.g. for every language. Is there any sequential unicode range that include all "chars" ? If not , How can I do it ? p.s. I saw this answer but the answer was for pythoin 回答1: If you use Steve Levithan's XRegExp package with Unicode add-ons, then it's easy: var regex = XRegExp('^\\p{L}*$'); (Note that ^ is the start-of-string anchor, and $ is the end-of

问题 I've never become fluent with CSS but I don't think I had this situation before. I'm thinking of using stylish to add CSS to a third-party site over which I have no direct control. So the HTML and CSS is not really set up for the kind of customizations I want to do. The site I wish to tweak doesn't allow good control over fonts but some of its pages (user created) make a lot of use of some exotic Unicode ranges (eg. Khmer) that my OS/browser combination choose a terrible font for: Can I make

问题 can't get "wcout" to print unicode string in multiple code pages, together with leaving "cout" to work please help me get these 3 lines to work together. std::wcout<<"abc "<<L'\u240d'<<" defg "<<L'א'<<" hijk"<<std::endl; std::cout<<"hello world from cout! \n"; std::wcout<<"hello world from wcout! \n"; output: abc hello world from cout! i tried: #include <io.h> #include <fcntl.h> _setmode(_fileno(stdout), _O_U8TEXT); problem: "cout" failed tried: std::locale mylocale(""); std::wcout.imbue

问题 I'm working on a project where I need to convert text from an encoding (for example Windows-1256 Arabic) to UTF-8. How do I do this in Go? 回答1: You can use the encoding package, which includes support for Windows-1256 via the package golang.org/x/text/encoding/charmap (in the example below, import this package and use charmap.Windows1256 instead of japanese.ShiftJIS ). Here's a short example which encodes a japanese UTF-8 string to ShiftJIS encoding and then decodes the ShiftJIS string back

问题 I picked this character 〉 as a separator for my combo-key-field for my DynamoDb database. That character surfaces in the browser as part of a next-page-query token. (in an endless scroll list view) Chrome properly sends that character to the backend (as part of the next-page-query token). However, Safari, sends that character as this character: 〉 , which is different, and as a result, my backend is unable to recognise it. Why is the browser changing the character? Is this behaviour expected?

问题 I have a sting in UTF8: "Red🌹🌹Röses" I need that to be converted to valid UCS-2(or fixed size UTF-16BE without BOM, they are the same things) encoding, so the output will be: "Red Röses" as the "🌹" out of range of UCS-2. What I have tried: @Test public void testEncodeProblem() throws CharacterCodingException { String in = "Red\uD83C\uDF39\uD83C\uDF39Röses"; ByteBuffer input = ByteBuffer.wrap(in.getBytes()); CharsetDecoder utf8Decoder = StandardCharsets.UTF_16BE.newDecoder(); utf8Decoder

问题 I was testing two almost identical regexes against a string (on regex101.com), and I noticed that there was a huge difference in the number of steps that they were taking. Here are the two regexes: (Stake: £)(\d+(?:\.\d+)?) (winnings: £)(\d+(?:\.\d+)?) This is the string I was running them against (with modifiers g , i , m , u ): Start Game, Credit: £200.00game num: 1, Stake: £2.00Spinning Reels:NINE SEVEN KINGKING STAR ACEQUEEN JACK KINGtotal winnings: £0.00End Game, Credit: £198Start...

问题 I am printing a formatted table. But sometimes these user generated characters are taking more than one character width and it messes up the formatting as you can see in the screenshot below... The width of the "title" column is formatted to be 68 bytes. But these "special characters" are taking up more than 1 character width but are only counted as 1 character. This pushes the column past its bounds. print('{0:16s}{3:<18s}{1:68s}{2:>8n}'.format(( ' ' + streamer['user_name'][:12] + '..') if

问题 I am printing a formatted table. But sometimes these user generated characters are taking more than one character width and it messes up the formatting as you can see in the screenshot below... The width of the "title" column is formatted to be 68 bytes. But these "special characters" are taking up more than 1 character width but are only counted as 1 character. This pushes the column past its bounds. print('{0:16s}{3:<18s}{1:68s}{2:>8n}'.format(( ' ' + streamer['user_name'][:12] + '..') if

问题 I am printing a formatted table. But sometimes these user generated characters are taking more than one character width and it messes up the formatting as you can see in the screenshot below... The width of the "title" column is formatted to be 68 bytes. But these "special characters" are taking up more than 1 character width but are only counted as 1 character. This pushes the column past its bounds. print('{0:16s}{3:<18s}{1:68s}{2:>8n}'.format(( ' ' + streamer['user_name'][:12] + '..') if