打印所有 std::locale 名称 (Windows)

2021-12-24 00:00:00 windows locale c++ c++11 boost

我的程序检查德语中的大写字母.

My program checks for uppercase letters in German language.

#include <iostream>
#include <boost/algorithm/string/classification.hpp>
#include <boost/locale.hpp>

using namespace std;

int main()
{
    locale::global(locale("Germany_german"));
    //locale::global(locale("de_DE.UTF-8")); //Also tried "de_DE.UTF-8", but does not work

    string str1 = "über";
    cout << boolalpha << any_of(str1.begin(), str1.end(), boost::algorithm::is_upper()) << endl;

    string str2 = "??";
    cout << boolalpha << any_of(str2.begin(), str2.end(), boost::algorithm::is_upper()) << endl;

    return 0;
}

程序在控制台上因错误而崩溃

program crashes with error on console

terminate called after throwing an instance of 'std::runtime_error'
  what():  locale::facet::_S_create_c_locale name not valid

我不知道确切的语言环境字符串是什么，de_DE.UTF-8"也不起作用.

I don't know what that exact locale string is, "de_DE.UTF-8" doesn't work as well.

有什么方法可以获得操作系统支持的所有语言环境的准确语言环境名称字符串.可能在头文件的某处有一个列表，但我没有看到任何 <locale> 头.

Is there any way I can get exact locale name strings for all locales supported by OS. May be there is a list somewhere in header files, but I don't see anything <locale> header.

推荐答案

我编写了一个程序来打印所有支持的语言环境名称.

I wrote a program to print all supported locale names.

#include <Windows.h>

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <ostream>
#include <iterator>

using namespace std;

vector<wstring> locals;

BOOL CALLBACK MyFuncLocaleEx(LPWSTR pStr, DWORD dwFlags, LPARAM lparam)
{
    locals.push_back(pStr);
    return TRUE;
}

int _tmain(int argc, _TCHAR* argv[])
{
    EnumSystemLocalesEx(MyFuncLocaleEx, LOCALE_ALL, NULL, NULL);

    for (vector<wstring>::const_iterator str = locals.begin(); str != locals.end(); ++str)
        wcout << *str << endl;

    wcout << "Total " << locals.size() << " locals found." << endl;

    return 0;
}

效果很好.

...
de
de-AT
de-CH
de-DE
de-DE_phoneb
de-LI
de-LU
...    
Total 429 locals found.

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