#include <stdio.h> #include <string.h> #include <locale.h> #include <locale/localeinfo.h> int main (void) { int32_t table_size, idx, i, found; const int32_t *symb_table; const unsigned char *extra; uint32_t nrules; char *ca; union locale_data_value u; ca = setlocale (LC_ALL, "da_DK.ISO-8859-1"); if (ca == NULL) { printf ("cannot set locale: %m\n"); return 1; } printf ("current locale : %s\n", ca); u.string = nl_langinfo (_NL_COLLATE_NRULES); nrules = u.word; if (nrules == 0) { printf("No rule\n"); return 1; } u.string = nl_langinfo (_NL_COLLATE_SYMB_HASH_SIZEMB); table_size = u.word; symb_table = (const int32_t *) nl_langinfo (_NL_COLLATE_SYMB_TABLEMB); extra = (const unsigned char *) nl_langinfo (_NL_COLLATE_SYMB_EXTRAMB); found = 0; for (i = 0; i < table_size; ++i) { if (symb_table[2 * i] != 0) { char elem[256]; idx = symb_table[2 * i + 1]; strncpy (elem, extra + idx + 1, extra[idx]); elem[extra[idx]] = '\0'; printf ("Found a collating element: %s\n", elem); ++found; } } if (found == 0) { printf ("No collating element!\n"); return 1; } else if (found != 4) { printf ("expected 4 collating elements, found %d\n", found); return 1; } return 0; }