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Diffstat (limited to 'src/tools/history.c')
| -rw-r--r-- | src/tools/history.c | 283 |
1 files changed, 0 insertions, 283 deletions
diff --git a/src/tools/history.c b/src/tools/history.c deleted file mode 100644 index 826df693..00000000 --- a/src/tools/history.c +++ /dev/null @@ -1,283 +0,0 @@ -/* - * history.c - * - * Copyright (C) 2012 - 2015 James Booth <boothj5@gmail.com> - * - * This file is part of Profanity. - * - * Profanity is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * Profanity is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with Profanity. If not, see <http://www.gnu.org/licenses/>. - * - * In addition, as a special exception, the copyright holders give permission to - * link the code of portions of this program with the OpenSSL library under - * certain conditions as described in each individual source file, and - * distribute linked combinations including the two. - * - * You must obey the GNU General Public License in all respects for all of the - * code used other than OpenSSL. If you modify file(s) with this exception, you - * may extend this exception to your version of the file(s), but you are not - * obligated to do so. If you do not wish to do so, delete this exception - * statement from your version. If you delete this exception statement from all - * source files in the program, then also delete it here. - * - */ - -#include <stdlib.h> -#include <string.h> - -#include <glib.h> - -#include "history.h" - -struct history_session_t { - GList *items; - GList *sess_curr; - GList *sess_new; - GList *orig_curr; -}; - -struct history_t { - GList *items; - guint max_size; - struct history_session_t session; -}; - -static void _replace_history_with_session(History history); -static gboolean _adding_new(History history); -static void _reset_session(History history); -static gboolean _has_session(History history); -static void _remove_first(History history); -static void _update_current_session_item(History history, char *item); -static void _add_to_history(History history, char *item); -static void _remove_last_session_item(History history); -static void _replace_current_with_original(History history); -static void _create_session(History history); -static void _session_previous(History history); -static void _session_next(History history); - -History -history_new(unsigned int size) -{ - History new_history = malloc(sizeof(struct history_t)); - new_history->items = NULL; - new_history->max_size = size; - - _reset_session(new_history); - - return new_history; -} - -void -history_append(History history, char *item) -{ - char *copied = ""; - if (item != NULL) { - copied = strdup(item); - } - - if (history->items == NULL) { - _add_to_history(history, copied); - return; - } - - if (!_has_session(history)) { - if (g_list_length(history->items) == history->max_size) { - _remove_first(history); - } - - _add_to_history(history, copied); - - } else { - _update_current_session_item(history, copied); - - if (_adding_new(history)) { - if (strcmp(history->session.sess_curr->data, "") == 0) { - _remove_last_session_item(history); - } - - _replace_history_with_session(history); - - } else { - _remove_last_session_item(history); - - char *new = strdup(history->session.sess_curr->data); - history->session.items = g_list_append(history->session.items, new); - - _replace_current_with_original(history); - _replace_history_with_session(history); - } - } -} - -char * -history_previous(History history, char *item) -{ - // no history - if (history->items == NULL) { - return NULL; - } - - char *copied = ""; - if (item != NULL) { - copied = strdup(item); - } - - if (!_has_session(history)) { - _create_session(history); - - // add the new item - history->session.items = g_list_append(history->session.items, copied); - history->session.sess_new = g_list_last(history->session.items); - - char *result = strdup(history->session.sess_curr->data); - return result; - } else { - _update_current_session_item(history, copied); - _session_previous(history); - } - - char *result = strdup(history->session.sess_curr->data); - return result; -} - -char * -history_next(History history, char *item) -{ - // no history, or no session, return NULL - if ((history->items == NULL) || (history->session.items == NULL)) { - return NULL; - } - - if (g_list_next(history->session.sess_curr) == NULL) { - return NULL; - } - - char *copied = ""; - if (item != NULL) { - copied = strdup(item); - } - - _update_current_session_item(history, copied); - _session_next(history); - - char *result = strdup(history->session.sess_curr->data); - return result; -} - -static void -_replace_history_with_session(History history) -{ - g_list_free(history->items); - history->items = g_list_copy(history->session.items); - - if (g_list_length(history->items) > history->max_size) { - _remove_first(history); - } - - _reset_session(history); -} - -static gboolean -_adding_new(History history) -{ - return (history->session.sess_curr == - g_list_last(history->session.items)); -} - -static void -_reset_session(History history) -{ - history->session.items = NULL; - history->session.sess_curr = NULL; - history->session.sess_new = NULL; - history->session.orig_curr = NULL; -} - -static gboolean -_has_session(History history) -{ - return (history->session.items != NULL); -} - -static void -_remove_first(History history) -{ - GList *first = g_list_first(history->items); - char *first_item = first->data; - history->items = g_list_remove(history->items, first_item); -} - -static void -_update_current_session_item(History history, char *item) -{ - history->session.sess_curr->data = item; -} - -static void -_add_to_history(History history, char *item) -{ - history->items = g_list_append(history->items, item); -} - -static void -_remove_last_session_item(History history) -{ - history->session.items = g_list_reverse(history->session.items); - GList *first = g_list_first(history->session.items); - history->session.items = - g_list_remove(history->session.items, first->data); - history->session.items = g_list_reverse(history->session.items); -} - -static void -_replace_current_with_original(History history) -{ - history->session.sess_curr->data = strdup(history->session.orig_curr->data); -} - -static void -_create_session(History history) -{ - history->session.items = g_list_copy(history->items); - history->session.sess_curr = g_list_last(history->session.items); - history->session.orig_curr = g_list_last(history->items); -} - -static void -_session_previous(History history) -{ - history->session.sess_curr = - g_list_previous(history->session.sess_curr); - if (history->session.orig_curr == NULL) - history->session.orig_curr = g_list_last(history->items); - else - history->session.orig_curr = - g_list_previous(history->session.orig_curr); - - if (history->session.sess_curr == NULL) { - history->session.sess_curr = g_list_first(history->session.items); - history->session.orig_curr = g_list_first(history->items); - } -} - -static void -_session_next(History history) -{ - history->session.sess_curr = g_list_next(history->session.sess_curr); - history->session.orig_curr = g_list_next(history->session.orig_curr); - - if (history->session.sess_curr == NULL) { - history->session.sess_curr = g_list_last(history->session.items); - history->session.orig_curr = NULL; - } -} |