unicode-string

Introduction/Question: I have been studying the use of Regular Expressions (using VBA/Excel), and so far I cannot understand how I would isolate a <space> (or " " ) using regexp from other white space characters that are included in \s . I thought that I would be able to use \p{Zs} , but in my testing so far, it has not worked out. Could someone please correct my misunderstanding? I appreciate any helpful input. To offer proper credit , I modified some code that started off as a very helpful post by @Portland Runner that is found here: How to use Regular Expressions (Regex) in Microsoft Excel

I have received string from webservice which contains Unicode character. I want to convert that To plain NSString. so How can i do that? ex: "This isn\u0092t your bike" So how can remove unicode and replace it with its equal special symbol characted. The output would be : "This isn't your bike" char cString[] = "This isn\u2019t your bike"; NSData *data = [NSData dataWithBytes:cString length:strlen(cString)]; NSString *string = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; NSLog(@"result string: %@", string); This should work. UPDATE FOR THE COMMENT: The unicode character

I want a regex to match a simple hashtag like that in twitter (e.g. #someword). I want it also to recognize non standard characters (like those in Spanish, Hebrew or Chinese). This was my initial regex: (^|\s|\b)(#(\w+))\b --> but it doesn't recognize non standard characters. Then, I tried using XRegExp.js , which worked, but ran too slowly. Any suggestions for how to do it? limlim Eventually I found this: twitter-text.js useful link, which is basically how twitter solve this problem. With native JS regexes that don't support unicode, your only option is to explicitly enumerate characters that

This code: string a = "abc"; string b = "A𠈓C"; Console.WriteLine("Length a = {0}", a.Length); Console.WriteLine("Length b = {0}", b.Length); outputs: Length a = 3 Length b = 4 Why? The only thing I could imagine is that the Chinese character is 2 bytes long and that the .Length method returns the byte count. Everyone else is giving the surface answer, but there's a deeper rationale too: the number of "characters" is a difficult-to-define question and can be surprisingly expensive to compute, whereas a length property should be fast. Why is it difficult to define? Well, there's a few options

Can anybody please tell me what is the range of Unicode printable characters? [e.g. Ascii printable character range is \u0020 - \u007f] See, http://en.wikipedia.org/wiki/Unicode_control_characters You might want to look especially at C0 and C1 control character http://en.wikipedia.org/wiki/C0_and_C1_control_codes The wiki says, the C0 control character is in the range U+0000—U+001F and U+007F (which is the same range as ASCII) and C1 control character is in the range U+0080—U+009F other than C-control character, Unicode also has hundreds of formatting control characters, e.g. zero-width non

After reading all about iconv and Encoding , I am still confused. I am scraping the source of a web page I have a string that looks like this: 'pretty\u003D\u003Ebig' (displayed in the R console as 'pretty\\\u003D\\\u003Ebig' ). I want to convert this to the ASCII string, which should be 'pretty=>big' . More simply, if I set x <- 'pretty\\u003D\\u003Ebig' How do I perform a conversion on x to yield pretty=>big ? Any suggestions? Use parse, but don't evaluate the results: x1 <- 'pretty\\u003D\\u003Ebig' x2 <- parse(text = paste0("'", x1, "'")) x3 <- x2[[1]] x3 # [1] "pretty=>big" is.character