/* ************************************************************************ * File: modify.c Part of CircleMUD * * Usage: Run-time modification of game variables * * * * All rights reserved. See license.doc for complete information. * * * * Copyright (C) 1993, 94 by the Trustees of the Johns Hopkins University * * CircleMUD is based on DikuMUD, Copyright (C) 1990, 1991. * ************************************************************************ */ #include "conf.h" #include "sysdep.h" #include "structs.h" #include "utils.h" #include "interpreter.h" #include "handler.h" #include "db.h" #include "comm.h" #include "spells.h" #include "mail.h" #include "boards.h" #include "improved-edit.h" #include "oasis.h" #include "tedit.h" void show_string(struct descriptor_data *d, char *input); extern struct spell_info_type spell_info[]; extern const char *MENU; extern const char *unused_spellname; /* spell_parser.c */ /* local functions */ void smash_tilde(char *str); ACMD(do_skillset); char *next_page(char *str); int count_pages(char *str); void paginate_string(char *str, struct descriptor_data *d); void playing_string_cleanup(struct descriptor_data *d, int action); void exdesc_string_cleanup(struct descriptor_data *d, int action); const char *string_fields[] = { "name", "short", "long", "description", "title", "delete-description", "\n" }; /* maximum length for text field x+1 */ int length[] = { 15, 60, 256, 240, 60 }; /* ************************************************************************ * modification of malloc'ed strings * ************************************************************************ */ /* * Put '#if 1' here to erase ~, or roll your own method. A common idea * is smash/show tilde to convert the tilde to another innocuous character * to save and then back to display it. Whatever you do, at least keep the * function around because other MUD packages use it, like mudFTP. * -gg 9/9/98 */ void smash_tilde(char *str) { #if 0 /* * Erase any ~'s inserted by people in the editor. This prevents anyone * using online creation from causing parse errors in the world files. * Derived from an idea by Sammy <samedi@dhc.net> (who happens to like * his tildes thank you very much.), -gg 2/20/98 */ while ((str = strchr(str, '~')) != NULL) *str = ' '; #endif } /* * Basic API function to start writing somewhere. * * 'data' isn't used in stock CircleMUD but you can use it to pass whatever * else you may want through it. The improved editor patch when updated * could use it to pass the old text buffer, for instance. */ void string_write(struct descriptor_data *d, char **writeto, size_t len, long mailto, void *data) { if (d->character && !IS_NPC(d->character)) SET_BIT(PLR_FLAGS(d->character), PLR_WRITING); if (using_improved_editor) d->backstr = (char *)data; else if (data) free(data); d->str = writeto; d->max_str = len; d->mail_to = mailto; } /* * Add user input to the 'current' string (as defined by d->str). * This is still overly complex. */ void string_add(struct descriptor_data *d, char *str) { int action; delete_doubledollar(str); smash_tilde(str); /* determine if this is the terminal string, and truncate if so */ /* changed to only accept '@' at the beginning of line - J. Elson 1/17/94 */ if ((action = (*str == '@'))) *str = '\0'; else if ((action = improved_editor_execute(d, str)) == STRINGADD_ACTION) return; if (action != STRINGADD_OK) /* Do nothing. */ ; else if (!(*d->str)) { if (strlen(str) + 3 > d->max_str) { /* \r\n\0 */ send_to_char("String too long - Truncated.\r\n", d->character); strcpy(str + (d->max_str - 3), "\r\n"); CREATE(*d->str, char, d->max_str); strcpy(*d->str, str); if (!using_improved_editor) action = STRINGADD_SAVE; } else { CREATE(*d->str, char, strlen(str) + 3); strcpy(*d->str, str); } } else { if (strlen(str) + strlen(*d->str) + 3 > d->max_str) { /* \r\n\0 */ send_to_char("String too long. Last line skipped.\r\n", d->character); if (!using_improved_editor) action = STRINGADD_SAVE; else if (action == STRINGADD_OK) action = STRINGADD_ACTION; /* No appending \r\n\0, but still let them save. */ } else { RECREATE(*d->str, char, strlen(*d->str) + strlen(str) + 3); /* \r\n\0 */ strcat(*d->str, str); } } /* * Common cleanup code. */ switch (action) { case STRINGADD_ABORT: switch (STATE(d)) { case CON_TEDIT: case CON_REDIT: case CON_MEDIT: case CON_OEDIT: case CON_EXDESC: free(*d->str); *d->str = d->backstr; d->backstr = NULL; d->str = NULL; break; default: log("SYSERR: string_add: Aborting write from unknown origin."); break; } break; case STRINGADD_SAVE: if (d->str && *d->str && **d->str == '\0') { free(*d->str); *d->str = str_dup("Nothing.\r\n"); } if (d->backstr) free(d->backstr); d->backstr = NULL; break; case STRINGADD_ACTION: break; } /* Ok, now final cleanup. */ if (action == STRINGADD_SAVE || action == STRINGADD_ABORT) { int i; struct { int mode; void (*func)(struct descriptor_data *d, int action); } cleanup_modes[] = { { CON_MEDIT , medit_string_cleanup }, { CON_OEDIT , oedit_string_cleanup }, { CON_REDIT , redit_string_cleanup }, { CON_TEDIT , tedit_string_cleanup }, { CON_EXDESC , exdesc_string_cleanup }, { CON_PLAYING, playing_string_cleanup }, { -1, NULL } }; for (i = 0; cleanup_modes[i].func; i++) if (STATE(d) == cleanup_modes[i].mode) (*cleanup_modes[i].func)(d, action); /* Common post cleanup code. */ d->str = NULL; d->mail_to = 0; d->max_str = 0; if (d->character && !IS_NPC(d->character)) REMOVE_BIT(PLR_FLAGS(d->character), PLR_MAILING | PLR_WRITING); } else if (action != STRINGADD_ACTION && strlen(*d->str) + 3 <= d->max_str) /* 3 = \r\n\0 */ strcat(*d->str, "\r\n"); } void playing_string_cleanup(struct descriptor_data *d, int action) { if (PLR_FLAGGED(d->character, PLR_MAILING)) { if (action == STRINGADD_SAVE && *d->str) { store_mail(d->mail_to, GET_IDNUM(d->character), *d->str); SEND_TO_Q("Message sent!\r\n", d); } else SEND_TO_Q("Mail aborted.\r\n", d); free(*d->str); free(d->str); } /* * We have no way of knowing which slot the post was sent to so we can only give the message... */ if (d->mail_to >= BOARD_MAGIC) { Board_save_board(d->mail_to - BOARD_MAGIC); if (action == STRINGADD_ABORT) SEND_TO_Q("Post not aborted, use REMOVE <post #>.\r\n", d); } } void exdesc_string_cleanup(struct descriptor_data *d, int action) { if (action == STRINGADD_ABORT) SEND_TO_Q("Description aborted.\r\n", d); SEND_TO_Q(MENU, d); STATE(d) = CON_MENU; } /* ********************************************************************** * Modification of character skills * ********************************************************************** */ ACMD(do_skillset) { struct char_data *vict; char name[MAX_INPUT_LENGTH], buf2[128]; char buf[MAX_INPUT_LENGTH], help[MAX_STRING_LENGTH]; int skill, value, i, qend; argument = one_argument(argument, name); if (!*name) { /* no arguments. print an informative text */ send_to_char("Syntax: skillset <name> '<skill>' <value>\r\n", ch); strcpy(help, "Skill being one of the following:\r\n"); for (qend = 0, i = 0; i <= TOP_SPELL_DEFINE; i++) { if (spell_info[i].name == unused_spellname) /* This is valid. */ continue; sprintf(help + strlen(help), "%18s", spell_info[i].name); if (qend++ % 4 == 3) { strcat(help, "\r\n"); send_to_char(help, ch); *help = '\0'; } } if (*help) send_to_char(help, ch); send_to_char("\r\n", ch); return; } if (!(vict = get_char_vis(ch, name, NULL, FIND_CHAR_WORLD))) { send_to_char(NOPERSON, ch); return; } skip_spaces(&argument); /* If there is no chars in argument */ if (!*argument) { send_to_char("Skill name expected.\r\n", ch); return; } if (*argument != '\'') { send_to_char("Skill must be enclosed in: ''\r\n", ch); return; } /* Locate the last quote and lowercase the magic words (if any) */ for (qend = 1; argument[qend] && argument[qend] != '\''; qend++) argument[qend] = LOWER(argument[qend]); if (argument[qend] != '\'') { send_to_char("Skill must be enclosed in: ''\r\n", ch); return; } strcpy(help, (argument + 1)); help[qend - 1] = '\0'; if ((skill = find_skill_num(help)) <= 0) { send_to_char("Unrecognized skill.\r\n", ch); return; } argument += qend + 1; /* skip to next parameter */ argument = one_argument(argument, buf); if (!*buf) { send_to_char("Learned value expected.\r\n", ch); return; } value = atoi(buf); if (value < 0) { send_to_char("Minimum value for learned is 0.\r\n", ch); return; } if (value > 100) { send_to_char("Max value for learned is 100.\r\n", ch); return; } if (IS_NPC(vict)) { send_to_char("You can't set NPC skills.\r\n", ch); return; } /* * find_skill_num() guarantees a valid spell_info[] index, or -1, and we * checked for the -1 above so we are safe here. */ sprintf(buf2, "%s changed %s's %s to %d.", GET_NAME(ch), GET_NAME(vict), spell_info[skill].name, value); mudlog(buf2, BRF, -1, TRUE); SET_SKILL(vict, skill, value); sprintf(buf2, "You change %s's %s to %d.\r\n", GET_NAME(vict), spell_info[skill].name, value); send_to_char(buf2, ch); } /********************************************************************* * New Pagination Code * Michael Buselli submitted the following code for an enhanced pager * for CircleMUD. All functions below are his. --JE 8 Mar 96 * *********************************************************************/ /* Traverse down the string until the begining of the next page has been * reached. Return NULL if this is the last page of the string. */ char *next_page(char *str) { int col = 1, line = 1, spec_code = FALSE; for (;; str++) { /* If end of string, return NULL. */ if (*str == '\0') return (NULL); /* If we're at the start of the next page, return this fact. */ else if (line > PAGE_LENGTH) return (str); /* Check for the begining of an ANSI color code block. */ else if (*str == '\x1B' && !spec_code) spec_code = TRUE; /* Check for the end of an ANSI color code block. */ else if (*str == 'm' && spec_code) spec_code = FALSE; /* Check for everything else. */ else if (!spec_code) { /* Carriage return puts us in column one. */ if (*str == '\r') col = 1; /* Newline puts us on the next line. */ else if (*str == '\n') line++; /* We need to check here and see if we are over the page width, * and if so, compensate by going to the begining of the next line. */ else if (col++ > PAGE_WIDTH) { col = 1; line++; } } } } /* Function that returns the number of pages in the string. */ int count_pages(char *str) { int pages; for (pages = 1; (str = next_page(str)); pages++); return (pages); } /* This function assigns all the pointers for showstr_vector for the * page_string function, after showstr_vector has been allocated and * showstr_count set. */ void paginate_string(char *str, struct descriptor_data *d) { int i; if (d->showstr_count) *(d->showstr_vector) = str; for (i = 1; i < d->showstr_count && str; i++) str = d->showstr_vector[i] = next_page(str); d->showstr_page = 0; } /* The call that gets the paging ball rolling... */ void page_string(struct descriptor_data *d, char *str, int keep_internal) { if (!d) return; if (!str || !*str) { send_to_char("", d->character); return; } d->showstr_count = count_pages(str); CREATE(d->showstr_vector, char *, d->showstr_count); if (keep_internal) { d->showstr_head = str_dup(str); paginate_string(d->showstr_head, d); } else paginate_string(str, d); show_string(d, ""); } /* The call that displays the next page. */ void show_string(struct descriptor_data *d, char *input) { char buffer[MAX_STRING_LENGTH]; int diff; any_one_arg(input, buf); /* Q is for quit. :) */ if (LOWER(*buf) == 'q') { free(d->showstr_vector); d->showstr_count = 0; if (d->showstr_head) { free(d->showstr_head); d->showstr_head = NULL; } return; } /* R is for refresh, so back up one page internally so we can display * it again. */ else if (LOWER(*buf) == 'r') d->showstr_page = MAX(0, d->showstr_page - 1); /* B is for back, so back up two pages internally so we can display the * correct page here. */ else if (LOWER(*buf) == 'b') d->showstr_page = MAX(0, d->showstr_page - 2); /* Feature to 'goto' a page. Just type the number of the page and you * are there! */ else if (isdigit(*buf)) d->showstr_page = MAX(0, MIN(atoi(buf) - 1, d->showstr_count - 1)); else if (*buf) { send_to_char( "Valid commands while paging are RETURN, Q, R, B, or a numeric value.\r\n", d->character); return; } /* If we're displaying the last page, just send it to the character, and * then free up the space we used. */ if (d->showstr_page + 1 >= d->showstr_count) { send_to_char(d->showstr_vector[d->showstr_page], d->character); free(d->showstr_vector); d->showstr_count = 0; if (d->showstr_head) { free(d->showstr_head); d->showstr_head = NULL; } } /* Or if we have more to show.... */ else { diff = d->showstr_vector[d->showstr_page + 1] - d->showstr_vector[d->showstr_page]; if (diff > MAX_STRING_LENGTH - 3) /* 3=\r\n\0 */ diff = MAX_STRING_LENGTH - 3; strncpy(buffer, d->showstr_vector[d->showstr_page], diff); /* * Fix for prompt overwriting last line in compact mode submitted by * Peter Ajamian <peter@pajamian.dhs.org> on 04/21/2001 */ if (buffer[diff-2] == '\r' && buffer[diff-1]=='\n') buffer[diff] = '\0'; else if (buffer[diff-2] == '\n' && buffer[diff-1] == '\r') /* This is backwards. Fix it. */ strcpy(buffer+diff-2, "\r\n"); else if (buffer[diff-1] == '\r' || buffer[diff-1] == '\n') /* Just one of \r\n. Overwrite it. */ strcpy(buffer+diff-1, "\r\n"); else /* Tack \r\n onto the end to fix bug with prompt overwriting last line. */ strcpy(buffer+diff, "\r\n"); send_to_char(buffer, d->character); d->showstr_page++; } }