CODEWITHSUNDEEP
c++
ullyatu
ullyatu

Reputation: 13

How to convert a string to its unicode escapes?

I'm trying to convert a char array to unicode-escapedchar array.

Say I have a string "C:/İmüp". How can I convert it to C:/\u0130m\u00fcp as char array or const char?

(I get "C:/Hello İmüp" as char array via ExpandEnvironmentStrings(), then i need to write that to a file with its unicode escapes)

I tried typecast converting, std::stringstream and ASCII tables, looked up for examples on C++ json encoders, however i couldn't get it working

Upvotes: 1

Views: 1085

Answers (3)

Mustafa Chelik
Mustafa Chelik

Reputation: 2184

Try this code:

string yourAsciiString = "this is test";
string yourUnicodeString = System.Text.Encoding.Unicode.GetString(System.Text.Encoding.ASCII.GetBytes(yourAsciiString));

Upvotes: -1

Remy Lebeau
Remy Lebeau

Reputation: 596407

Try this:

std::wstring env;
// fill env with data from ExpandEnvironmentStringsW()...

std::stringstream ss;
for (std::wstring::iterator iter = env.begin(); iter != env.end(); ++iter)
{
    if (*iter <= 127)
        ss << (char) *iter;
    else
        ss << "\\u" << std::hex << std::setfill('0') << std::setw(4) << (int)*iter;
}

std::string str = ss.str();
// use str as needed...

Upvotes: 5

Soonts
Soonts

Reputation: 21936

First convert it from char array to wchar_t array, using the system-default code page.

Then write trivial code that walks over your wchar_t array and escapes every Unicode character with code >= 128.

P.S. Better yet, make your application Unicode so it will use Unicode version of ExpandEnvironmentStrings. This way you will only have to escape the string, plus your app will still work correctly if some environmental string contains a character that doesn’t fit in char with your system-default code page.

Upvotes: 2

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