utf-8

How to use operator L on array? (C++, Visual Studio 2019)

由 拜拜、爱过 提交于 2020-04-10 06:29:19
问题 Part 2 on encoding characters in C++ (by User123). <- Go to the previous post. I was yesterday making some code, and Paul Sanders in this question told me useful solution: He told me not to use std::cout << "something"; but to use std::wcout << L"something"; . But I have another problem. Now I want to do something like this (some special characters, but in array): #include <iostream> using namespace std; string myArray[2] = { "łŁšđřžőšě", "×÷¤ßł§ř~ú" }; int main() { cout << myArray[0] << endl

c++字符集之间转换(UTF-8,UNICODE,Gb2312)

由 可紊 提交于 2020-04-09 12:08:44
UTF-8: 3字节一个字符 UNICODE: 2字节一个字符 GB2312: 1字节一个字符 例子： “你”字的UTF-8编码: E4 BD A0　　　　　　　　11100100 10111101 10100000 “你”的Unicode编码: 4F 60　　　　　　　　　 01001111 01100000 按照UTF-8的编码规则，分解如下：xxxx0100 xx111101 xx100000,把除了x之外的数字拼接在一起，就变成“你”的Unicode编码了。 注意UTF-8的最前面３个1，表示整个UTF-8串是由３个字节构成的。 经过UTF-8编码之后，再也不会出现敏感字符了，因为最高位始终为1。 类定义 class CChineseCode{ public: static void UTF_8ToUnicode(wchar_t* pOut,char *pText); // 把UTF-8转换成Unicode static void UnicodeToUTF_8(char* pOut,wchar_t* pText); //Unicode 转换成UTF-8 static void UnicodeToGB2312(char* pOut,wchar_t uData); // 把Unicode 转换成 GB2312 static void Gb2312ToUnicode(wchar

How to create a database with UTF-8 collation in PostgreSQL on Windows?

由 笑着哭i 提交于 2020-04-08 16:53:41
问题 I'm configuring PostgreSQL db for the Bitbucket Server on Windows. In the official guide it says that: The database must be configured to use the UTF-8 character set. It doesn't strictly say that you have to set collation to UTF-8, but for other atlassian procucts it's recommended so I assume that's the same case for Bitbucket Server. Exmaple from Confluence documentation: Character encoding must be set to utf8 encoding. Collation must also be set to utf8. Other collations, such as "C", are

How to create a database with UTF-8 collation in PostgreSQL on Windows?

由 爷，独闯天下 提交于 2020-04-08 16:51:32
问题 I'm configuring PostgreSQL db for the Bitbucket Server on Windows. In the official guide it says that: The database must be configured to use the UTF-8 character set. It doesn't strictly say that you have to set collation to UTF-8, but for other atlassian procucts it's recommended so I assume that's the same case for Bitbucket Server. Exmaple from Confluence documentation: Character encoding must be set to utf8 encoding. Collation must also be set to utf8. Other collations, such as "C", are

Perl + Curses: Expecting a UTF-8 encoded multibyte character from getchar(), but not getting any

由 这一生的挚爱 提交于 2020-04-07 05:13:37
问题 I am trying out Bryan Henderson's Perl interface to the ncurses library: Curses For a simple exercise, I try to obtain single characters typed on-screen. This is directly based off the NCURSES Programming HOWTO, with adaptations. When I call the Perl library's getchar() , I expect to receive a character, possibly multibyte (It's a bit more complicated as explained in this part of the library manpage because one has to handle the special cases of function keys and no input, but that's just the

Perl + Curses: Expecting a UTF-8 encoded multibyte character from getchar(), but not getting any

由 笑着哭i 提交于 2020-04-07 05:13:31
问题 I am trying out Bryan Henderson's Perl interface to the ncurses library: Curses For a simple exercise, I try to obtain single characters typed on-screen. This is directly based off the NCURSES Programming HOWTO, with adaptations. When I call the Perl library's getchar() , I expect to receive a character, possibly multibyte (It's a bit more complicated as explained in this part of the library manpage because one has to handle the special cases of function keys and no input, but that's just the

Encoding in tuple Python

由 半世苍凉 提交于 2020-03-27 04:51:27
问题 I have an array containing SQL query result. I need to convert this array in tuple to make a request like this: t = tuple(data) querysring="INSERT INTO %s VALUES %s "%(table,t) cur.execute(querysring) But my array contains values like ['François','données'] and when I convert this in tuple it's make and insert 'Fran\xc3\xa7ois' in my database. I have try to decode and encode (utf-8) but it seem not working. Any suggestions ? 来源： https://stackoverflow.com/questions/43629059/encoding-in-tuple

Encoding in tuple Python

由 ε祈祈猫儿з 提交于 2020-03-27 04:50:18
问题 I have an array containing SQL query result. I need to convert this array in tuple to make a request like this: t = tuple(data) querysring="INSERT INTO %s VALUES %s "%(table,t) cur.execute(querysring) But my array contains values like ['François','données'] and when I convert this in tuple it's make and insert 'Fran\xc3\xa7ois' in my database. I have try to decode and encode (utf-8) but it seem not working. Any suggestions ? 来源： https://stackoverflow.com/questions/43629059/encoding-in-tuple

Python 3 string index lookup is O(1)?

由 試著忘記壹切 提交于 2020-03-22 06:43:05
问题 Short story: Is Python 3 unicode string lookup O(1) or O(n)? Long story: Index lookup of a character in a C char array is constant time O(1) because we can with certainty jump to a contiguous memory location: const char* mystring = "abcdef"; char its_d = mystring[3]; Its the same as saying: char its_d = *(mystring + 3); Because we know that sizeof(char) is 1 as C99, and because of ASCII one character fits in one byte. Now, in Python 3, now that string literals are unicode strings, we have the

Python 3 string index lookup is O(1)?

由 邮差的信 提交于 2020-03-22 06:42:10
问题 Short story: Is Python 3 unicode string lookup O(1) or O(n)? Long story: Index lookup of a character in a C char array is constant time O(1) because we can with certainty jump to a contiguous memory location: const char* mystring = "abcdef"; char its_d = mystring[3]; Its the same as saying: char its_d = *(mystring + 3); Because we know that sizeof(char) is 1 as C99, and because of ASCII one character fits in one byte. Now, in Python 3, now that string literals are unicode strings, we have the
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