bool has[11]={0,0,0,0,0,0,0,0,0,0};

        /* parse IMAP ACL list */
        while (*acl == ' ' || *acl == '\t')
                acl++;

        t_array_init(&rights, 64);
        while (*acl != '\0' && *acl != ' ' && *acl != '\t' && *acl != ':') {
                for (i = 0; acl_letter_map[i].letter != '\0'; i++) {
                        if (acl_letter_map[i].letter == *acl)
                                break;
                }

                if (acl_letter_map[i].letter == '\0') {
                        if(*acl == 'c') {
                                // FIXME
                                if(!has[8]) {
                                        array_append(&rights, &acl_letter_map[8].name, 1); //k
                                        has[8]=1;
                                }
                                if(!has[9]) {
                                        array_append(&rights, &acl_letter_map[9].name, 1); //x
                                        has[9]=1;
                                }
                                acl++;
                                continue;
                        } else if(*acl == 'd') {
                                // FIXME
                                if(!has[7]) {
                                        array_append(&rights, &acl_letter_map[7].name, 1); //e
                                        has[7]=1;
                                }
                                if(!has[4]) {
                                        array_append(&rights, &acl_letter_map[4].name, 1); //t
                                        has[4]=1;
                                }
                                acl++;
                                continue;
                        }
                        *error_r = t_strdup_printf("Unknown ACL '%c'", *acl);
                        return NULL;
                }

                has[i]=1;
                array_append(&rights, &acl_letter_map[i].name, 1);
                acl++;
        }