pkgstrGetToken
char *pkgstrGetToken(char *r_sep, char *a_string, int a_index,
p = pkgstrGetToken((char *)NULL, a_string, index, a_separators);
p = pkgstrGetToken((char *)NULL, a_string, i, a_separators);
p = pkgstrGetToken(&sep, a_string, i, a_separators);