int main () { /* configure should already have checked that the locale is supported. */ if (setlocale (LC_ALL, "") == NULL) return 1; ASSERT (mbsspn ("Some text", "") == 0); ASSERT (mbsspn ("A long sentence", " ") == 0); ASSERT (mbsspn (" xy", "aei ou") == 2); ASSERT (mbsspn ("eau", "aeiou") == 3); /* The following tests shows how mbsspn() is different from strspn(). */ { const char input[] = "\303\266\303\274"; /* "öü" */ ASSERT (mbsspn (input, "\303\266") == 2); /* "ö" */ ASSERT (mbsspn (input, "\303\244") == 0); /* "ä" */ ASSERT (mbsspn (input, "\303\274\303\266") == 4); /* "üö" */ ASSERT (mbsspn (input, "\303\244\303\274") == 0); /* "äü" */ ASSERT (mbsspn (input, "\303\244\303\266") == 2); /* "äö" */ } { const char input[] = "\303\266\303\274"; /* "öü" */ ASSERT (mbsspn (input, "\303") == 0); /* invalid multibyte sequence */ } return 0; }
char * mbstok_r (char *string, const char *delim, char **save_ptr) { if (MB_CUR_MAX > 1) { if (string == NULL) { string = *save_ptr; if (string == NULL) return NULL; /* reminder that end of token sequence has been reached */ } /* Skip leading delimiters. */ string += mbsspn (string, delim); /* Found a token? */ if (*string == '\0') { *save_ptr = NULL; return NULL; } /* Move past the token. */ { char *token_end = mbspbrk (string, delim); if (token_end != NULL) { /* NUL-terminate the token. */ *token_end = '\0'; *save_ptr = token_end + 1; } else *save_ptr = NULL; } return string; } else return strtok_r (string, delim, save_ptr); }