HGKeeper

/**

* highlight.c Highlight on customized words.

* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA

/* Pack/Local headers */

#include "../common/pp_internal.h"

#include <plugin.h>

#include <account.h>

#include <blist.h>

#include <cmds.h>

#include <conversation.h>

#include <debug.h>

#include <notify.h>

#include <util.h>

#include <string.h>

#define PREF_PREFIX "/plugins/core/highlight"

#define PREF_WORDS PREF_PREFIX "/words"

#define DELIMS " \t.,;|<>?/\\`~!@#$%^&*()+={}[]:'\""

#define PROP "highlight-words"

static char **words;

static PurpleCmdId cmd;

/**

* History stuff.

/* XXX: SAVE THE NAME AND ACCOUNT OF THE CONVERSATION. OTHERWISE, IT CAUSES

* A CRASH WHEN A HIGHLIGHTED CONVERSATION NO LONGER EXISTS.

static GHashTable *history;

static void

string_destroy(gpointer data)

{

g_string_free(data, TRUE);

}

static void

print_history_from_one_conv(gpointer key, gpointer value, gpointer data)

{

g_string_append_printf(data, "Highlights from %s (%s) %s <hr>",

purple_conversation_get_name(key),

purple_account_get_username(purple_conversation_get_account(key)),

((GString*)value)->str);

}

static void

print_history()

{

GString *str = g_string_new(NULL);

g_hash_table_foreach(history, print_history_from_one_conv, str);

purple_notify_formatted(NULL, _("Highlight History"), _("Highlight History"),

NULL, str->str, NULL, NULL);

string_destroy(str);

}

static void

clear_history()

{

g_hash_table_destroy(history);

history = g_hash_table_new_full(g_direct_hash, g_direct_equal, NULL, string_destroy);

}

static void

add_to_history(PurpleConversation *conv, const char *message, const char *who, time_t mtime)

{

GString *str = g_hash_table_lookup(history, conv);

if (str == NULL) {

str = g_string_new(NULL);

g_hash_table_replace(history, conv, str);

}

g_string_append_printf(str, " (%s) %s: %s",

purple_time_format(localtime(&mtime)),

who, message);

}

/* End of history */

static void

casefold_collate_strings(char **string)

{

int i;

for (i = 0; string[i]; i++) {

char *store = string[i];

char *cs = g_utf8_casefold(store, -1);

string[i] = g_utf8_collate_key(cs, -1);

g_free(cs);

g_free(store);

}

static void

sort(char **strings, int length)

{

int half;

char **left, **middle, **m, **right;

char **ret, **r;

if (length <= 1)

return;

r = ret = g_new0(char *, length);

half = length / 2;

sort(strings, half);

sort(strings + half, length - half);

left = strings;

middle = m = strings + half;

right = strings + length;

while (left < middle && m < right) {

int comp = strcmp(*left, *m);

if (comp <= 0)

*r++ = *left++;

else

*r++ = *m++;

}

while (left < middle)

*r++ = *left++;

while (m < right)

*r++ = *m++;

for (half = 0; half < length; half++)

strings[half] = ret[half];

g_free(ret);

}

static gboolean

writing_msg_callback(PurpleAccount *account, char *who, char **message, PurpleConversation *conv,

PurpleMessageFlags flags)

{

if (flags & PURPLE_MESSAGE_NICK)

add_to_history(conv, *message, who, time(NULL));

return FALSE;

}

static gboolean

msg_callback(PurpleAccount *account, char **who, char **message, PurpleConversation *conv,

PurpleMessageFlags *flags)

{

char **splits;

int len;

int wl, sl;

const char *me;

if (*flags & PURPLE_MESSAGE_NICK) {

return FALSE; /* this message is already highlighted */

}

if (!words)

return FALSE;

me = purple_connection_get_display_name(purple_account_get_connection(account));

if (me != NULL && g_utf8_collate(*who, me) == 0)

return FALSE;

splits = g_strsplit_set(*message, DELIMS, -1);

if (!splits)

return FALSE;

len = 0;

while (splits[len])

len++;

casefold_collate_strings(splits);

sort(splits, len);

/* this is probably over-engineering. */

for (sl = 0, wl = 0; words[wl] && splits[sl]; ) {

int val = strcmp(words[wl], splits[sl]);

if (val == 0) {

*flags |= PURPLE_MESSAGE_NICK;

break;

}

if (val < 0)

wl++;

else

sl++;

}

g_strfreev(splits);

return FALSE;

}

static void

construct_list()

{

int len = 0;

g_strfreev(words);

words = g_strsplit_set(purple_prefs_get_string(PREF_WORDS), DELIMS, -1);

if (!words)

return;

while (words[len])

len++;

casefold_collate_strings(words);

sort(words, len);

}

static PurpleCmdRet

highlight_cmd(PurpleConversation *conv, const gchar *cmd, gchar **args, gchar **error, void *data)

{

if (g_utf8_collate(args[0], "history") == 0) {

print_history();

} else if (g_utf8_collate(args[0], "clear") == 0) {

clear_history();

} else {

}

return PURPLE_CMD_RET_OK;

}

static gboolean

plugin_load(PurplePlugin *plugin)

{

#if !GLIB_CHECK_VERSION(2,4,0)

return FALSE;

#else

construct_list();

purple_signal_connect(purple_conversations_get_handle(), "receiving-chat-msg", plugin,

G_CALLBACK(msg_callback), NULL);

purple_signal_connect(purple_conversations_get_handle(), "writing-chat-msg", plugin,

G_CALLBACK(writing_msg_callback), NULL);

purple_prefs_connect_callback(plugin, PREF_WORDS,

(PurplePrefCallback)construct_list, NULL);

cmd = purple_cmd_register("highlight", "ws", PURPLE_CMD_P_DEFAULT,

PURPLE_CMD_FLAG_CHAT | PURPLE_CMD_FLAG_ALLOW_WRONG_ARGS, NULL, highlight_cmd,

_("/highlight history: shows the list of highlighted sentences from the history.\n"

"/highlight clear: clears the history.\n"

"/highlight +<word>: adds <word> to the highlight word list for this conversation only.\n"

"/highlight -<word>: removes <word> from the highlight word list for this conversation only.\n"),

NULL);

history = g_hash_table_new_full(g_direct_hash, g_direct_equal, NULL, string_destroy);

return TRUE;

#endif

}

static gboolean

plugin_unload(PurplePlugin *plugin)

{

if (cmd)

purple_cmd_unregister(cmd);

g_hash_table_destroy(history);

return TRUE;

}

static PurplePluginPrefFrame *

get_plugin_pref_frame(PurplePlugin *plugin)

{

PurplePluginPrefFrame *frame;

PurplePluginPref *pref;

frame = purple_plugin_pref_frame_new();

pref = purple_plugin_pref_new_with_name_and_label(PREF_WORDS, _("Words to highlight on\n"

"(separate words by space)"));

purple_plugin_pref_frame_add(frame, pref);

return frame;

}

static PurplePluginUiInfo prefs_info = {

get_plugin_pref_frame,

NULL,

NULL

};

static PurplePluginInfo info =

{

PURPLE_PLUGIN_MAGIC,

PURPLE_MAJOR_VERSION,

PURPLE_MINOR_VERSION,

PURPLE_PLUGIN_STANDARD,

NULL,

PURPLE_PRIORITY_DEFAULT,

"core-plugin_pack-highlight",

NULL,

PP_VERSION,

NULL,

"Sadrul H Chowdhury <sadrul@users.sourceforge.net>",

PP_WEBSITE,

plugin_load,

plugin_unload,

NULL,

&prefs_info,

NULL,

NULL

};

static void

init_plugin(PurplePlugin *plugin)

{

#ifdef ENABLE_NLS

bindtextdomain(GETTEXT_PACKAGE, PP_LOCALEDIR);

bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8");

#endif /* ENABLE_NLS */

purple_prefs_add_none(PREF_PREFIX);

purple_prefs_add_string(PREF_WORDS, "");

info.name = _("Highlight");

info.summary = _("Support for highlighting words.");

info.description = _("Support for highlighting words.");

}

PURPLE_INIT_PLUGIN(ignore, init_plugin, info)

pidgin/purple-plugin-pack