gistfile1.h

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <locale.h>
#include <wctype.h>
#include <langinfo.h>

int main(int argc, char **argv)
{
    if (!setlocale(LC_ALL, ""))  {
        fprintf(stderr, "Can't set the specified locale! " \
                        "Check your LANG and LC_* environment variables\n");
        return 1;
    }

    int i = 0 , j = 0, k = 0;
    wchar_t *s = L"H€Łło 3rð. WØrŁÐ!\xfb46";
    wint_t c = 0;
    unsigned char enc_bytes[4];
    char *wcprops[] = {
        "alnum", "alpha", "cntrl", "digit",
        "graph", "lower", "print", "punct",
        "space", "upper", "xdigit", NULL
    };
    size_t slen = wcslen(s);

    printf("String: %ls\n", s);
    printf("String Length: %d\n", slen);
    for (i = 0; i < slen; ++i) {
        c = s[i];
        printf("%02d: %lc ~ U+%04x | %lc %lc | ", i + 1, c, c, towlower(c), towupper(c));
        for (j = 0; wcprops[j] != NULL; ++j) {
            if (iswctype(c, wctype(wcprops[j])))
                printf("+");
            else
                printf("-");
            printf("%s ", wcprops[j]);
        }
        printf("| %s bytes: ", nl_langinfo(CODESET));
        for (j = 0, k = wcrtomb(enc_bytes, c, NULL); j < k; ++j)
            printf("%02x ", enc_bytes[j]);
        printf("\n");
    }
    printf("\n");
    
    return 0;
}