Problem with Unicode command-line arguments on Windows

bzzr

1 posts

#22029

4 years, 3 months ago Edited by bzzr on January 4, 2020, 8:05pm

While using Remedy I noticed that the strings given as arguments in the "Command Arguments" field of the Session menu were incorrectly encoded. Running the program normally seems to give properly encoded arguments, so I'm thinking this may be a bug. Here's the code:

#include <stdio.h>

int wmain(int argc, wchar_t **argv, wchar_t **envp)
{
    for (int i = 0; i < argc; i++)
    {
        wprintf(L"Argument %d: ", i);

        wchar_t *arg = argv[i];
        while (*arg)
        {
            wprintf(L"%x ", *arg);
            arg++;
        }
        wprintf(L"\n");
    }
}

Running the program like this

program.exe Pão

outputs this

...
Argument 1: 50 e3 6f

That's encoded correctly. But running the program through Remedy outputs this

...
Argument 1: 50 c3 a3 6f

Am I missing something or is this really a bug?

mmozeiko

Mārtiņš Možeiko

2562 posts / 2 projects

#22031

Problem with Unicode command-line arguments on Windows

4 years, 3 months ago

0xc3 0xa3 in utf-8 is 0xe3. Seems that Remedy is passing unicode encoded in utf-8 which is not really what wide chars means on Windows. So this seems to be a bug with Remedy, not an issue with your code.

x13pixels

311 posts / 1 project

None

#22037

Problem with Unicode command-line arguments on Windows

4 years, 3 months ago

I'll look into it. Thanks guys.