Question do_commands

ACMD(do_commands) { int no, i, cmd_num; int wizhelp = 0, socials = 0; struct char_data *vict; char arg[MAX_INPUT_LENGTH]; char buf[MAX_STRING_LENGTH]; const char *commands[1000]; int overflow = sizeof(commands) / sizeof(commands[0]); if (!ch->desc) return; one_argument(argument, arg); if (*arg) { if (!(vict = get_char_vis(ch, arg, NULL, FIND_CHAR_WORLD)) || IS_NPC(vict)) { send_to_char(ch, "Who is that?\r\n"); return; } } else vict = ch; if (subcmd == SCMD_SOCIALS) socials = 1; else if (subcmd == SCMD_WIZHELP) wizhelp = 1; sprintf(buf, "The following %s%s are available to %s:\r\n", wizhelp ? "privileged " : "", socials ? "socials" : "commands", vict == ch ? "you" : GET_NAME(vict)); /* cmd_num starts at 1, not 0, to remove 'RESERVED' */ for (no = 0, cmd_num = 1; complete_cmd_info[cmd_sort_info[cmd_num]].command[0] != '\n'; ++cmd_num) { i = cmd_sort_info[cmd_num]; if (complete_cmd_info[i].minimum_level < 0 || GET_LEVEL(vict) < complete_cmd_info[i].minimum_level) continue; if ((complete_cmd_info[i].minimum_level >= LVL_IMMORT) != wizhelp) continue; if (!wizhelp && socials != (complete_cmd_info[i].command_pointer == do_action)) continue; if (wizhelp && complete_cmd_info[i].command_pointer == do_action) continue; if (--overflow < 0) continue; /* matching command: copy to commands list */ commands[no++] = complete_cmd_info[i].command; } /* display commands list in a nice columnized format */ column_list(ch, 0, commands, no, FALSE); }

void column_list(struct char_data *ch, int num_cols, const char **list, int list_length, bool show_nums) { size_t max_len = 0, len = 0, temp_len; int num_per_col, col_width, r, c, i, offset = 0; char buf[MAX_STRING_LENGTH]; /* Work out the longest list item */ for (i=0; i<list_length; i++) if (max_len < strlen(list[i])) max_len = strlen(list[i]); /* auto columns case */ if (num_cols == 0) { num_cols = (IS_NPC(ch) ? 80 : GET_SCREEN_WIDTH(ch)) / (max_len + (show_nums ? 5 : 1)); } /* Ensure that the number of columns is in the range 1-10 */ num_cols = MIN(MAX(num_cols,1), 10); /* Work out the longest list item */ for (i=0; i<list_length; i++) if (max_len < strlen(list[i])) max_len = strlen(list[i]); /* Calculate the width of each column */ if (IS_NPC(ch)) col_width = 80 / num_cols; else col_width = (GET_SCREEN_WIDTH(ch)) / num_cols; if (show_nums) col_width-=4; if (col_width < 0 || (size_t)col_width < max_len) log("Warning: columns too narrow for correct output to %s in simple_column_list (utils.c)", GET_NAME(ch)); /* Calculate how many list items there should be per column */ num_per_col = (list_length / num_cols) + ((list_length % num_cols) ? 1 : 0); /* Fill 'buf' with the columnised list */ for (r=0; r<num_per_col; r++) { for (c=0; c<num_cols; c++) { offset = (c*num_per_col)+r; if (offset < list_length) { if (show_nums) temp_len = snprintf(buf+len, sizeof(buf) - len, "%2d) %-*s", offset+1, col_width, list[(offset)]); else temp_len = snprintf(buf+len, sizeof(buf) - len, "%-*s", col_width, list[(offset)]); len += temp_len; } } temp_len = snprintf(buf+len, sizeof(buf) - len, "\r\n"); len += temp_len; } if (len >= sizeof(buf)) snprintf((buf + MAX_STRING_LENGTH) - 22, 22, "\r\n*** OVERFLOW ***\r\n"); /* Send the list to the player */ page_string(ch->desc, buf, TRUE); }

char buf[MAX_STRING_LENGTH]; + *buf='\0'; /* Work out the longest list item */