unicode-string

问题 In standard C++ we have char and wchar_t for storing characters. char can store values between 0x00 and 0xFF . And wchar_t can store values between 0x0000 and 0xFFFF . std::string uses char , so it can store 1-byte characters only. std::wstring uses wchar_t , so it can store characters up to 2-byte width. This is what I know about strings in C++. Please correct me if I said anything wrong up to this point. I read the article for UTF-8 in Wikipedia, and I learned that some Unicode characters

问题 Is there any conceivable reason why I would see different results using unicode string literals versus the actual hex value for the UChar. UnicodeString s1(0x0040); // @ sign UnicodeString s2("\u0040"); s1 isn't equivalent to s2. Why? 回答1: The \u escape sequence AFAIK is implementation defined, so it's hard to say why they are not equivalent without knowing details on your particular compiler. That said, it's simply not a safe way of doing things. UnicodeString has a constructor taking a

问题 I have installed phpfox in a IIS server which supports php 5.x But URLs transforms to ????? when i click on some persian links. For example i should have a link like : http://mydomain.com/index.php?do=/photo/album/6/اخبار/ which is like http://mydomain.com/index.php?do=/photo/album/6/????????/ Although i have this problem in my online windows based host, i have installed this version in localhost using XAMPP and it is running without problem. I am newbie in php. 来源： https://stackoverflow.com

问题 Yesterday i wrote the following function to convert integer to Persian : def integerToPersian(number): listedPersian = ['۰','۱','۲','۳','۴','۵','۶','۷','۸','۹'] listedEnglish = ['0','1','2','3','4','5','6','7','8','9'] returnList = list() listedTmpString = list(str(number)) for i in listedTmpString: returnList.append(listedPersian[listedEnglish.index(i)]) return ''.join(returnList) When you call it such as : integerToPersian(3455) , it return ۳۴۵۵ , ۳۴۵۵ is equivalent to 3455 in Persian and

问题 I want to use the symbol (u+2265): in the y-axis label of my chart. How can I do that? Thanks. UPDATE 01 I need to use add a >=95 in the y-axis label, showing the group of people aged more than 95, I tried expression(>=95) but fail as it seems to expect something before >= . What can I do? 回答1: qplot(1, 1, ylab=expression(phantom(.) >= 95)) By using phantom in the expression, you don't get anything printed. I put a period in there because phantom still leaves space, so I wanted something

问题 I wrote a text file in the Hebrew language . When I present the contents of the file in C # I do not see what I wrote - I understand that it is tied to Unicode , but I do not really understand it . Help , anyone? string mymail = File.ReadAllText(@"C:\mail\mail.txt"); MessageBox.Show(mymail); This is the result : ��� ����� ��� �� ��������� ������� ���� �� ������ 回答1: Close your file and re-open it, make sure what you typed is actually persisted in your file. Using the default notepad app in

问题 I have some troubles with a dataframe obtained from reading a xls file. Every data on such dataframe has the type 'unicode' and I can't do anything with this. I wanna change it to str values. Also, iff possible, I'd like to know the reason of this fact. I heard something about 'external data', and I know that both columns and index also present the 'u' of unicode before the names of these ones. I don't know neither almost anything about encoding and I would be really grateful if someone

问题 How to get the last character of a unicode tamil string. for example i am having a list of strings like "சுதீப்", "செய்தியை", "கொள்ளாதது", "வில்லன்" if i use mystring.Last() for the above strings i am getting "சுதீப்" = ""்"" "செய்தியை" = "ை "கொள்ளாதது" = ""ு"" "வில்லன்" = ""்"" but i need to get "சுதீப்" = ""ப்"" "செய்தியை" = ""யை"" "கொள்ளாதது" = ""து"" "வில்லன்" = ""ன்"" 回答1: I suggest you create a helper function where you loop through each char and examine the UnicodeCategory. Extension

问题 What is the string terminator sequence for a UTF-16 string? EDIT: Let me rephrase the question in an attempt to clarify. How's does the call to wcslen() work? 回答1: Unicode does not define string terminators. Your environment or language does. For instance, C strings use 0x0 as a string terminator, as well as in .NET strings where a separate value in the String class is used to store the length of the string. To answer your second question, wcslen looks for a terminating L'\0' character. Which

问题 I need to convert the following to string and display Overall, the \u2018\u2018typical\u2019\u2019 xyz is broadly expressed I have tried all sort of uncode conversion NSData *asciiData = [desc dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES]; NSString *encodedString = [[NSString alloc] initWithData:asciiData encoding:NSASCIIStringEncoding and: [NSString stringByReplacingOccurrencesOfString:@"\u2018" withString:@""] without success. Kindly suggest me a solution to this. 回答1: