C++字符转换 字符替换

一、setlocale(LC_ALL,"Chinese-simplified");

将其放置在main函数开始，可以让ogre支持中文资源以及中文路径。

 

二．string转换成宽字节

size_t size = string.length();

 

    wchar_t *buffer = new wchar_t[size+1];

 

    MultiByteToWideChar( CP_ACP, 0, string.c_str(), size, buffer, size * sizeof(wchar_t) );

 

    buffer[size] = 0; // 确保以'\0' 结尾

 

    // buffer为宽字节字符

 

    delete buffer;

三．

// 宽字符转为窄字符

wstring CGlobalVariable::StringToWstring(string in)

{

       wstring s(in.length(), _T(' '));

       size_t len = ::MultiByteToWideChar(CP_UTF8, 0,

              in.c_str(), in.length(),

              &s[0], s.length());

       s.resize(len);

       return s;

}

 

 

// UTF-8字符转为宽字符

string CGlobalVariable::UTF8WstringToString(wstring in)

{

       string s(in.length()*3+1,' ');

       size_t len = ::WideCharToMultiByte(CP_UTF8, 0,

              in.c_str(), in.length(),

              &s[0], s.length(),

              NULL, NULL);

       s.resize(len);

       return s;

}

 

// 宽字符转为UTF-8字符

wstring CGlobalVariable::UTF8StringToWstring(string in)

{

       wstring s(in.length(), _T(' '));

       size_t len = ::MultiByteToWideChar(CP_UTF8, 0,

              in.c_str(), in.length(),

              &s[0], s.length());

       s.resize(len);

       return s;

}

 

 

// 替换字符

wstring& CGlobalVariable::replaceDistinct(wstring& str,const wstring& old_value,const wstring& new_value)

{

       for (wstring::size_type pos(0);pos!=wstring::npos;pos+=new_value.length())

       {

              if ((pos=str.find(old_value,pos))!=wstring::npos)

              {

                     str.replace(pos,old_value.length(),new_value);

              }

              else

                     break;

       }

       return str;

}