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/*
completion.c : irssi
Copyright (C) 1999-2000 Timo Sirainen
This program 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 2 of the License, or
(at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "module.h"
#include "signals.h"
#include "commands.h"
#include "misc.h"
#include "lib-config/iconfig.h"
#include "settings.h"
#include "irc.h"
#include "server.h"
#include "channels.h"
#include "nicklist.h"
#include "completion.h"
#include "window-items.h"
static int complete_tag;
typedef struct {
time_t time;
char *nick;
} NICK_COMPLETION_REC;
static void nick_completion_destroy(GSList **list, NICK_COMPLETION_REC *rec)
{
*list = g_slist_remove(*list, rec);
g_free(rec->nick);
g_free(rec);
}
static void nick_completion_remove_old(GSList **list, int timeout, time_t now)
{
GSList *tmp, *next;
for (tmp = *list; tmp != NULL; tmp = next) {
NICK_COMPLETION_REC *rec = tmp->data;
next = tmp->next;
if (now-rec->time > timeout)
nick_completion_destroy(list, rec);
}
}
static int nick_completion_timeout(void)
{
GSList *tmp, *link;
time_t now;
int len;
now = time(NULL);
for (tmp = servers; tmp != NULL; tmp = tmp->next) {
IRC_SERVER_REC *rec = tmp->data;
len = g_slist_length(rec->lastmsgs);
if (len > 0 && len >= settings_get_int("completion_keep_privates")) {
link = g_slist_last(rec->lastmsgs);
g_free(link->data);
rec->lastmsgs = g_slist_remove(rec->lastmsgs, link->data);
}
}
for (tmp = channels; tmp != NULL; tmp = tmp->next) {
CHANNEL_REC *rec = tmp->data;
nick_completion_remove_old(&rec->lastownmsgs, settings_get_int("completion_keep_ownpublics"), now);
nick_completion_remove_old(&rec->lastmsgs, settings_get_int("completion_keep_publics"), now);
}
return 1;
}
static NICK_COMPLETION_REC *nick_completion_find(GSList *list, const char *nick)
{
GSList *tmp;
for (tmp = list; tmp != NULL; tmp = tmp->next) {
NICK_COMPLETION_REC *rec = tmp->data;
if (g_strcasecmp(rec->nick, nick) == 0)
return rec;
}
return NULL;
}
static NICK_COMPLETION_REC *nick_completion_create(GSList **list, time_t time, const char *nick)
{
NICK_COMPLETION_REC *rec;
rec = nick_completion_find(*list, nick);
if (rec != NULL) {
/* remove the old one */
nick_completion_destroy(list, rec);
}
rec = g_new(NICK_COMPLETION_REC, 1);
*list = g_slist_prepend(*list, rec);
rec->time = time;
rec->nick = g_strdup(nick);
return rec;
}
static void add_private_msg(IRC_SERVER_REC *server, const char *nick)
{
GSList *link;
link = gslist_find_icase_string(server->lastmsgs, nick);
if (link != NULL) {
g_free(link->data);
server->lastmsgs = g_slist_remove(server->lastmsgs, link->data);
}
server->lastmsgs = g_slist_prepend(server->lastmsgs, g_strdup(nick));
}
static void event_privmsg(const char *data, IRC_SERVER_REC *server, const char *nick)
{
char *params, *target, *msg;
GSList **list;
g_return_if_fail(server != NULL);
if (nick == NULL) return; /* from server */
params = event_get_params(data, 2 | PARAM_FLAG_GETREST, &target, &msg);
if (ischannel(*target)) {
/* channel message */
CHANNEL_REC *channel;
channel = channel_find(server, target);
if (channel == NULL) {
g_free(params);
return;
}
list = irc_nick_match(server->nick, msg) ?
&channel->lastownmsgs :
&channel->lastmsgs;
nick_completion_create(list, time(NULL), nick);
} else {
/* private message */
add_private_msg(server, nick);
}
g_free(params);
}
static void cmd_msg(const char *data, IRC_SERVER_REC *server)
{
char *params, *target, *msg;
g_return_if_fail(data != NULL);
params = cmd_get_params(data, 2 | PARAM_FLAG_GETREST, &target, &msg);
if (*target != '\0' && *msg != '\0') {
if (!ischannel(*target) && *target != '=' && server != NULL)
add_private_msg(server, target);
}
g_free(params);
}
static void sig_nick_removed(CHANNEL_REC *channel, NICK_REC *nick)
{
NICK_COMPLETION_REC *rec;
rec = nick_completion_find(channel->lastownmsgs, nick->nick);
if (rec != NULL) nick_completion_destroy(&channel->lastownmsgs, rec);
rec = nick_completion_find(channel->lastmsgs, nick->nick);
if (rec != NULL) nick_completion_destroy(&channel->lastmsgs, rec);
}
static void sig_nick_changed(CHANNEL_REC *channel, NICK_REC *nick, const char *oldnick)
{
NICK_COMPLETION_REC *rec;
rec = nick_completion_find(channel->lastownmsgs, oldnick);
if (rec != NULL) {
g_free(rec->nick);
rec->nick = g_strdup(nick->nick);
}
rec = nick_completion_find(channel->lastmsgs, oldnick);
if (rec != NULL) {
g_free(rec->nick);
rec->nick = g_strdup(nick->nick);
}
}
static GList *completion_msg(IRC_SERVER_REC *server, const char *nick, const char *prefix)
{
GSList *tmp;
GList *list;
int len;
list = NULL; len = strlen(nick);
for (tmp = server->lastmsgs; tmp != NULL; tmp = tmp->next) {
if (len == 0 || g_strncasecmp(tmp->data, nick, len) == 0) {
if (prefix == NULL || *prefix == '\0')
list = g_list_append(list, g_strdup(tmp->data));
else
list = g_list_append(list, g_strconcat(prefix, " ", tmp->data, NULL));
}
}
return list;
}
static void complete_from_nicklist(GList **outlist, GSList *list,
const char *nick, const char *prefix)
{
GSList *tmp;
int len;
len = strlen(nick);
for (tmp = list; tmp != NULL; tmp = tmp->next) {
NICK_COMPLETION_REC *rec = tmp->data;
if (g_strncasecmp(rec->nick, nick, len) == 0 &&
glist_find_icase_string(*outlist, rec->nick) == NULL) {
if (prefix == NULL || *prefix == '\0')
*outlist = g_list_append(*outlist, g_strdup(rec->nick));
else
*outlist = g_list_append(*outlist, g_strconcat(rec->nick, prefix, NULL));
}
}
}
static GList *completion_channel_nicks(CHANNEL_REC *channel, const char *nick, const char *prefix)
{
GSList *nicks, *tmp;
GList *list;
int len;
g_return_val_if_fail(channel != NULL, NULL);
g_return_val_if_fail(nick != NULL, NULL);
if (*nick == '\0') return NULL;
/* put first the nicks who have recently said something [to you] */
list = NULL;
complete_from_nicklist(&list, channel->lastownmsgs, nick, prefix);
complete_from_nicklist(&list, channel->lastmsgs, nick, prefix);
/* and add the rest of the nicks too */
len = strlen(nick);
nicks = nicklist_getnicks(channel);
for (tmp = nicks; tmp != NULL; tmp = tmp->next) {
NICK_REC *rec = tmp->data;
if (g_strncasecmp(rec->nick, nick, len) == 0 &&
glist_find_icase_string(list, rec->nick) == NULL &&
g_strcasecmp(rec->nick, channel->server->nick) != 0) {
if (prefix == NULL || *prefix == '\0')
list = g_list_append(list, g_strdup(rec->nick));
else
list = g_list_append(list, g_strconcat(rec->nick, prefix, NULL));
}
}
g_slist_free(nicks);
return list;
}
static GList *completion_joinlist(GList *list1, GList *list2)
{
GList *old;
old = list2;
while (list2 != NULL) {
if (!glist_find_icase_string(list1, list2->data))
list1 = g_list_append(list1, list2->data);
else
g_free(list2->data);
list2 = list2->next;
}
g_list_free(old);
return list1;
}
static void sig_complete_word(GList **list, WINDOW_REC *window,
const char *word, const char *linestart)
{
IRC_SERVER_REC *server;
CHANNEL_REC *channel;
GList *tmplist;
const char *cmdchars, *nickprefix;
char *prefix;
g_return_if_fail(list != NULL);
g_return_if_fail(window != NULL);
g_return_if_fail(word != NULL);
g_return_if_fail(linestart != NULL);
server = window->active_server;
if (server == NULL || !server->connected)
return;
channel = irc_item_channel(window->active);
/* check for /MSG completion */
cmdchars = settings_get_str("cmdchars");
if (*word == '\0' || (*linestart == '\0' && strchr(cmdchars, *word) != NULL &&
g_strcasecmp(word+1, "msg") == 0)) {
/* pressed TAB at the start of line - add /MSG
... or ... trying to complete /MSG command */
prefix = g_strdup_printf("%cmsg", *cmdchars);
*list = completion_msg(server, "", prefix);
if (*list == NULL) *list = g_list_append(*list, g_strdup(prefix));
g_free(prefix);
signal_stop();
return;
}
if (strchr(cmdchars, *linestart) != NULL &&
g_strcasecmp(linestart+1, "msg") == 0) {
/* completing /MSG nick */
*list = completion_msg(server, word, NULL);
}
/* nick completion .. we could also be completing a nick after /MSG
from nicks in channel */
if (channel == NULL)
return;
nickprefix = *linestart != '\0' ? NULL :
settings_get_str("completion_char");
tmplist = completion_channel_nicks(channel, word, nickprefix);
*list = completion_joinlist(*list, tmplist);
if (*list != NULL) signal_stop();
}
/* expand \n, \t and \\ - FIXME: this doesn't work right */
static char *expand_escapes(const char *line, IRC_SERVER_REC *server, WI_IRC_REC *item)
{
char *ptr, *ret;
ret = ptr = g_malloc(strlen(line)+1);
while (*line != '\0') {
if (*line != '\\')
*ptr++ = *line;
else {
line++;
if (*line == '\0') {
*ptr++ = '\\';
break;
}
switch (*line) {
case 'n':
/* newline .. we need to send another "send text" event to handle it (or actually the text before the newline..) */
*ptr = '\0';
signal_emit("send text", 3, line, server, item);
ptr = ret;
break;
case 't':
*ptr++ = '\t';
break;
case '\\':
*ptr++ = '\\';
break;
default:
*ptr++ = '\\';
*ptr++ = *line;
break;
}
}
line++;
}
*ptr = '\0';
return ret;
}
static void event_text(gchar *line, IRC_SERVER_REC *server, WI_IRC_REC *item)
{
CHANNEL_REC *channel;
GList *comp;
gchar *str, *ptr;
g_return_if_fail(line != NULL);
if (!irc_item_check(item))
return;
/* FIXME: this really should go to fe-common/core. */
line = settings_get_bool("expand_escapes") ?
expand_escapes(line, server, item) : g_strdup(line);
/* check for nick completion */
if (settings_get_bool("completion_disable_auto") || *settings_get_str("completion_char") == '\0')
{
ptr = NULL;
comp = NULL;
}
else
{
ptr = strchr(line, *settings_get_str("completion_char"));
if (ptr != NULL) *ptr++ = '\0';
channel = irc_item_channel(item);
comp = ptr == NULL || channel == NULL ||
nicklist_find(channel, line) != NULL ? NULL :
completion_channel_nicks(channel, line, NULL);
}
/* message to channel */
if (ptr == NULL)
str = g_strdup_printf("%s %s", item->name, line);
else
{
str = g_strdup_printf("%s %s%s%s", item->name,
comp != NULL ? (gchar *) comp->data : line,
settings_get_str("completion_char"), ptr);
}
signal_emit("command msg", 3, str, server, item);
g_free(str);
g_free(line);
if (comp != NULL)
{
g_list_foreach(comp, (GFunc) g_free, NULL);
g_list_free(comp);
}
signal_stop();
}
static void completion_deinit_server(IRC_SERVER_REC *server)
{
g_return_if_fail(server != NULL);
g_slist_foreach(server->lastmsgs, (GFunc) g_free, NULL);
g_slist_free(server->lastmsgs);
}
static void completion_deinit_channel(CHANNEL_REC *channel)
{
g_return_if_fail(channel != NULL);
while (channel->lastmsgs != NULL)
nick_completion_destroy(&channel->lastmsgs, channel->lastmsgs->data);
while (channel->lastownmsgs != NULL)
nick_completion_destroy(&channel->lastownmsgs, channel->lastownmsgs->data);
g_slist_free(channel->lastmsgs);
g_slist_free(channel->lastownmsgs);
}
void irc_completion_init(void)
{
settings_add_str("completion", "completion_char", ":");
settings_add_bool("completion", "completion_disable_auto", FALSE);
settings_add_int("completion", "completion_keep_publics", 180);
settings_add_int("completion", "completion_keep_ownpublics", 360);
settings_add_int("completion", "completion_keep_privates", 10);
settings_add_bool("completion", "expand_escapes", FALSE);
complete_tag = g_timeout_add(1000, (GSourceFunc) nick_completion_timeout, NULL);
signal_add("complete word", (SIGNAL_FUNC) sig_complete_word);
signal_add("event privmsg", (SIGNAL_FUNC) event_privmsg);
signal_add("command msg", (SIGNAL_FUNC) cmd_msg);
signal_add("nicklist remove", (SIGNAL_FUNC) sig_nick_removed);
signal_add("nicklist changed", (SIGNAL_FUNC) sig_nick_changed);
signal_add("send text", (SIGNAL_FUNC) event_text);
signal_add("server disconnected", (SIGNAL_FUNC) completion_deinit_server);
signal_add("channel destroyed", (SIGNAL_FUNC) completion_deinit_channel);
}
void irc_completion_deinit(void)
{
g_source_remove(complete_tag);
signal_remove("complete word", (SIGNAL_FUNC) sig_complete_word);
signal_remove("event privmsg", (SIGNAL_FUNC) event_privmsg);
signal_remove("command msg", (SIGNAL_FUNC) cmd_msg);
signal_remove("nicklist remove", (SIGNAL_FUNC) sig_nick_removed);
signal_remove("nicklist changed", (SIGNAL_FUNC) sig_nick_changed);
signal_remove("send text", (SIGNAL_FUNC) event_text);
signal_remove("server disconnected", (SIGNAL_FUNC) completion_deinit_server);
signal_remove("channel destroyed", (SIGNAL_FUNC) completion_deinit_channel);
}
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