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perl.c
1584 lines (1345 loc) · 34.9 KB
/
perl.c
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/* X-Chat 2.0 PERL Plugin
* Copyright (C) 1998-2002 Peter Zelezny.
*
* 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 <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#ifdef ENABLE_NLS
#include <locale.h>
#endif
#ifdef WIN32
#include <windows.h>
#else
#include <dirent.h>
#endif
#undef PACKAGE
#include "../../config.h" /* for #define OLD_PERL */
#include "xchat-plugin.h"
static xchat_plugin *ph; /* plugin handle */
static int perl_load_file (char *script_name);
#ifdef WIN32
/* STRINGIFY is from perl's CORE/config.h */
#ifndef PERL_REQUIRED_VERSION
#define PERL_REQUIRED_VERSION STRINGIFY(PERL_REVISION) "." STRINGIFY(PERL_VERSION)
#endif
#ifndef PERL_DLL
#define PERL_DLL "perl" STRINGIFY(PERL_REVISION) STRINGIFY(PERL_VERSION) ".dll"
#endif
static DWORD
child (char *str)
{
MessageBoxA (0, str, "Perl DLL Error",
MB_OK | MB_ICONHAND | MB_SETFOREGROUND | MB_TASKMODAL);
return 0;
}
static void
thread_mbox (char *str)
{
DWORD tid;
CloseHandle (CreateThread (NULL, 0, (LPTHREAD_START_ROUTINE) child,
str, 0, &tid));
}
#endif
/* leave this before XSUB.h, to avoid readdir() being redefined */
#ifdef WIN32
static void
perl_auto_load_from_path (const char *path)
{
WIN32_FIND_DATA find_data;
HANDLE find_handle;
char *search_path;
int path_len = strlen (path);
/* +6 for \*.pl and \0 */
search_path = malloc(path_len + 6);
sprintf (search_path, "%s\\*.pl", path);
find_handle = FindFirstFile (search_path, &find_data);
if (find_handle != INVALID_HANDLE_VALUE)
{
do
{
if (!(find_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY
||find_data.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN))
{
char *full_path =
malloc (path_len + strlen (find_data.cFileName) + 2);
sprintf (full_path, "%s\\%s", path, find_data.cFileName);
perl_load_file (full_path);
free (full_path);
}
}
while (FindNextFile (find_handle, &find_data) != 0);
FindClose (find_handle);
}
free (search_path);
}
#else
static void
perl_auto_load_from_path (const char *path)
{
DIR *dir;
struct dirent *ent;
dir = opendir (path);
if (dir) {
while ((ent = readdir (dir))) {
int len = strlen (ent->d_name);
if (len > 3 && strcasecmp (".pl", ent->d_name + len - 3) == 0) {
char *file = malloc (len + strlen (path) + 2);
sprintf (file, "%s/%s", path, ent->d_name);
perl_load_file (file);
free (file);
}
}
closedir (dir);
}
}
#endif
static int
perl_auto_load (void *unused)
{
const char *xdir;
char *sub_dir;
#ifdef WIN32
int copied = 0;
char *slash = NULL;
#endif
/* get the dir in local filesystem encoding (what opendir() expects!) */
xdir = xchat_get_info (ph, "xchatdirfs");
if (!xdir) /* xchatdirfs is new for 2.0.9, will fail on older */
xdir = xchat_get_info (ph, "xchatdir");
/* autoload from ~/.xchat2/ or ${APPDATA}\X-Chat 2\ on win32 */
perl_auto_load_from_path (xdir);
sub_dir = malloc (strlen (xdir) + 9);
strcpy (sub_dir, xdir);
strcat (sub_dir, "/plugins");
perl_auto_load_from_path (sub_dir);
free (sub_dir);
#ifdef WIN32
/* autoload from C:\program files\xchat\plugins\ */
sub_dir = malloc (1025 + 9);
copied = GetModuleFileName( 0, sub_dir, 1024 );
sub_dir[copied] = '\0';
slash = strrchr( sub_dir, '\\' );
if( slash != NULL ) {
*slash = '\0';
}
perl_auto_load_from_path ( strncat (sub_dir, "\\plugins", 9));
free (sub_dir);
#endif
return 0;
}
#include <EXTERN.h>
#define WIN32IOP_H
#include <perl.h>
#include <XSUB.h>
typedef struct
{
SV *callback;
SV *userdata;
xchat_hook *hook; /* required for timers */
xchat_context *ctx; /* allow timers to remember their context */
SV *package; /* need to track the package name when removing hooks
by returning REMOVE
*/
unsigned int depth;
} HookData;
static PerlInterpreter *my_perl = NULL;
extern void boot_DynaLoader (pTHX_ CV * cv);
/*
this is used for autoload and shutdown callbacks
*/
static int
execute_perl (SV * function, char *args)
{
int count, ret_value = 1;
dSP;
ENTER;
SAVETMPS;
PUSHMARK (SP);
XPUSHs (sv_2mortal (newSVpv (args, 0)));
PUTBACK;
count = call_sv (function, G_EVAL | G_SCALAR);
SPAGAIN;
if (SvTRUE (ERRSV)) {
xchat_printf(ph, "Perl error: %s\n", SvPV_nolen (ERRSV));
if (!SvOK (POPs)) {} /* remove undef from the top of the stack */
} else if (count != 1) {
xchat_printf (ph, "Perl error: expected 1 value from %s, "
"got: %d\n", SvPV_nolen (function), count);
} else {
ret_value = POPi;
}
PUTBACK;
FREETMPS;
LEAVE;
return ret_value;
}
static char *
get_filename (char *word[], char *word_eol[])
{
int len;
char *file;
len = strlen (word[2]);
/* if called as /load "filename.pl" the only difference between word and
* word_eol will be the two quotes
*/
if (strchr (word[2], ' ') != NULL
|| (strlen (word_eol[2]) - strlen(word[2])) == 2 )
{
file = word[2];
} else {
file = word_eol[2];
}
len = strlen (file);
if (len > 3 && strncasecmp (".pl", file + len - 3, 3) == 0) {
return file;
}
return NULL;
}
static SV *
list_item_to_sv ( xchat_list *list, const char *const *fields )
{
HV *hash = newHV();
SV *field_value;
const char *field;
int field_index = 0;
const char *field_name;
int name_len;
while (fields[field_index] != NULL) {
field_name = fields[field_index] + 1;
name_len = strlen (field_name);
switch (fields[field_index][0]) {
case 's':
field = xchat_list_str (ph, list, field_name);
if (field != NULL) {
field_value = newSVpvn (field, strlen (field));
} else {
field_value = &PL_sv_undef;
}
break;
case 'p':
field_value = newSViv (PTR2IV (xchat_list_str (ph, list,
field_name)));
break;
case 'i':
field_value = newSVuv (xchat_list_int (ph, list, field_name));
break;
case 't':
field_value = newSVnv (xchat_list_time (ph, list, field_name));
break;
default:
field_value = &PL_sv_undef;
}
hv_store (hash, field_name, name_len, field_value, 0);
field_index++;
}
return sv_2mortal (newRV_noinc ((SV *) hash));
}
static AV *
array2av (char *array[])
{
int count = 0;
SV *temp = NULL;
AV *av = newAV();
sv_2mortal ((SV *)av);
for (
count = 1;
count < 32 && array[count] != NULL && array[count][0] != 0;
count++
) {
temp = newSVpv (array[count], 0);
SvUTF8_on (temp);
av_push (av, temp);
}
return av;
}
/* sets $Xchat::Embed::current_package */
static void
set_current_package (SV *package)
{
SV *current_package = get_sv ("Xchat::Embed::current_package", 1);
SvSetSV_nosteal (current_package, package);
}
static int
fd_cb (int fd, int flags, void *userdata)
{
HookData *data = (HookData *) userdata;
int retVal = 0;
int count = 0;
dSP;
ENTER;
SAVETMPS;
PUSHMARK (SP);
XPUSHs (data->userdata);
PUTBACK;
set_current_package (data->package);
count = call_sv (data->callback, G_EVAL);
set_current_package (&PL_sv_undef);
SPAGAIN;
if (SvTRUE (ERRSV)) {
xchat_printf (ph, "Error in fd callback %s", SvPV_nolen (ERRSV));
if (!SvOK (POPs)) {} /* remove undef from the top of the stack */
retVal = XCHAT_EAT_ALL;
} else {
if (count != 1) {
xchat_print (ph, "Fd handler should only return 1 value.");
retVal = XCHAT_EAT_NONE;
} else {
retVal = POPi;
if (retVal == 0) {
/* if 0 is returned, the fd is going to get unhooked */
PUSHMARK (SP);
XPUSHs (sv_2mortal (newSViv (PTR2IV (data->hook))));
PUTBACK;
call_pv ("Xchat::unhook", G_EVAL);
SPAGAIN;
SvREFCNT_dec (data->callback);
if (data->userdata) {
SvREFCNT_dec (data->userdata);
}
free (data);
}
}
}
PUTBACK;
FREETMPS;
LEAVE;
return retVal;
}
static int
timer_cb (void *userdata)
{
HookData *data = (HookData *) userdata;
int retVal = 0;
int count = 0;
dSP;
ENTER;
SAVETMPS;
PUSHMARK (SP);
XPUSHs (data->userdata);
PUTBACK;
if (data->ctx) {
xchat_set_context (ph, data->ctx);
}
set_current_package (data->package);
count = call_sv (data->callback, G_EVAL);
set_current_package (&PL_sv_undef);
SPAGAIN;
if (SvTRUE (ERRSV)) {
xchat_printf (ph, "Error in timer callback %s", SvPV_nolen (ERRSV));
if (!SvOK (POPs)) {} /* remove undef from the top of the stack */
retVal = XCHAT_EAT_ALL;
} else {
if (count != 1) {
xchat_print (ph, "Timer handler should only return 1 value.");
retVal = XCHAT_EAT_NONE;
} else {
retVal = POPi;
if (retVal == 0) {
/* if 0 is return the timer is going to get unhooked */
PUSHMARK (SP);
XPUSHs (sv_2mortal (newSViv (PTR2IV (data->hook))));
XPUSHs (sv_mortalcopy (data->package));
PUTBACK;
call_pv ("Xchat::unhook", G_EVAL);
SPAGAIN;
}
}
}
PUTBACK;
FREETMPS;
LEAVE;
return retVal;
}
static int
server_cb (char *word[], char *word_eol[], void *userdata)
{
HookData *data = (HookData *) userdata;
int retVal = 0;
int count = 0;
dSP;
ENTER;
SAVETMPS;
if (data->depth)
return XCHAT_EAT_NONE;
/* xchat_printf (ph, */
/* "Recieved %d words in server callback", av_len (wd)); */
PUSHMARK (SP);
XPUSHs (newRV_noinc ((SV *) array2av (word)));
XPUSHs (newRV_noinc ((SV *) array2av (word_eol)));
XPUSHs (data->userdata);
PUTBACK;
data->depth++;
set_current_package (data->package);
count = call_sv (data->callback, G_EVAL);
set_current_package (&PL_sv_undef);
data->depth--;
SPAGAIN;
if (SvTRUE (ERRSV)) {
xchat_printf (ph, "Error in server callback %s", SvPV_nolen (ERRSV));
if (!SvOK (POPs)) {} /* remove undef from the top of the stack */
retVal = XCHAT_EAT_NONE;
} else {
if (count != 1) {
xchat_print (ph, "Server handler should only return 1 value.");
retVal = XCHAT_EAT_NONE;
} else {
retVal = POPi;
}
}
PUTBACK;
FREETMPS;
LEAVE;
return retVal;
}
static int
command_cb (char *word[], char *word_eol[], void *userdata)
{
HookData *data = (HookData *) userdata;
int retVal = 0;
int count = 0;
dSP;
ENTER;
SAVETMPS;
if (data->depth)
return XCHAT_EAT_NONE;
/* xchat_printf (ph, "Recieved %d words in command callback", */
/* av_len (wd)); */
PUSHMARK (SP);
XPUSHs (newRV_noinc ((SV *) array2av (word)));
XPUSHs (newRV_noinc ((SV *) array2av (word_eol)));
XPUSHs (data->userdata);
PUTBACK;
data->depth++;
set_current_package (data->package);
count = call_sv (data->callback, G_EVAL);
set_current_package (&PL_sv_undef);
data->depth--;
SPAGAIN;
if (SvTRUE (ERRSV)) {
xchat_printf (ph, "Error in command callback %s", SvPV_nolen (ERRSV));
if (!SvOK (POPs)) {} /* remove undef from the top of the stack */
retVal = XCHAT_EAT_XCHAT;
} else {
if (count != 1) {
xchat_print (ph, "Command handler should only return 1 value.");
retVal = XCHAT_EAT_NONE;
} else {
retVal = POPi;
}
}
PUTBACK;
FREETMPS;
LEAVE;
return retVal;
}
static int
print_cb (char *word[], void *userdata)
{
HookData *data = (HookData *) userdata;
SV *temp = NULL;
int retVal = 0;
int count = 1;
int last_index = 31;
/* must be initialized after SAVETMPS */
AV *wd = NULL;
dSP;
ENTER;
SAVETMPS;
if (data->depth)
return XCHAT_EAT_NONE;
wd = newAV ();
sv_2mortal ((SV *) wd);
/* need to scan backwards to find the index of the last element since some
events such as "DCC Timeout" can have NULL elements in between non NULL
elements */
while (last_index >= 0
&& (word[last_index] == NULL || word[last_index][0] == 0)) {
last_index--;
}
for (count = 1; count <= last_index; count++) {
if (word[count] == NULL) {
av_push (wd, &PL_sv_undef);
} else if (word[count][0] == 0) {
av_push (wd, newSVpvn ("",0));
} else {
temp = newSVpv (word[count], 0);
SvUTF8_on (temp);
av_push (wd, temp);
}
}
/*xchat_printf (ph, "Recieved %d words in print callback", av_len (wd)+1); */
PUSHMARK (SP);
XPUSHs (newRV_noinc ((SV *) wd));
XPUSHs (data->userdata);
PUTBACK;
data->depth++;
set_current_package (data->package);
count = call_sv (data->callback, G_EVAL);
set_current_package (&PL_sv_undef);
data->depth--;
SPAGAIN;
if (SvTRUE (ERRSV)) {
xchat_printf (ph, "Error in print callback %s", SvPV_nolen (ERRSV));
if (!SvOK (POPs)) {} /* remove undef from the top of the stack */
retVal = XCHAT_EAT_NONE;
} else {
if (count != 1) {
xchat_print (ph, "Print handler should only return 1 value.");
retVal = XCHAT_EAT_NONE;
} else {
retVal = POPi;
}
}
PUTBACK;
FREETMPS;
LEAVE;
return retVal;
}
/* custom IRC perl functions for scripting */
/* Xchat::Internal::register (scriptname, version, desc, shutdowncallback, filename)
*
*/
static
XS (XS_Xchat_register)
{
char *name, *version, *desc, *filename;
void *gui_entry;
dXSARGS;
if (items != 4) {
xchat_printf (ph,
"Usage: Xchat::Internal::register(scriptname, version, desc, filename)");
} else {
name = SvPV_nolen (ST (0));
version = SvPV_nolen (ST (1));
desc = SvPV_nolen (ST (2));
filename = SvPV_nolen (ST (3));
gui_entry = xchat_plugingui_add (ph, filename, name,
desc, version, NULL);
XSRETURN_IV (PTR2IV (gui_entry));
}
}
/* Xchat::print(output) */
static
XS (XS_Xchat_print)
{
char *text = NULL;
dXSARGS;
if (items != 1) {
xchat_print (ph, "Usage: Xchat::Internal::print(text)");
} else {
text = SvPV_nolen (ST (0));
xchat_print (ph, text);
}
XSRETURN_EMPTY;
}
static
XS (XS_Xchat_emit_print)
{
char *event_name;
int RETVAL;
int count;
dXSARGS;
if (items < 1) {
xchat_print (ph, "Usage: Xchat::emit_print(event_name, ...)");
} else {
event_name = (char *) SvPV_nolen (ST (0));
RETVAL = 0;
/* we need to figure out the number of defined values passed in */
for (count = 0; count < items; count++) {
if (!SvOK (ST (count))) {
break;
}
}
switch (count) {
case 1:
RETVAL = xchat_emit_print (ph, event_name, NULL);
break;
case 2:
RETVAL = xchat_emit_print (ph, event_name,
SvPV_nolen (ST (1)), NULL);
break;
case 3:
RETVAL = xchat_emit_print (ph, event_name,
SvPV_nolen (ST (1)),
SvPV_nolen (ST (2)), NULL);
break;
case 4:
RETVAL = xchat_emit_print (ph, event_name,
SvPV_nolen (ST (1)),
SvPV_nolen (ST (2)),
SvPV_nolen (ST (3)), NULL);
break;
case 5:
RETVAL = xchat_emit_print (ph, event_name,
SvPV_nolen (ST (1)),
SvPV_nolen (ST (2)),
SvPV_nolen (ST (3)),
SvPV_nolen (ST (4)), NULL);
break;
}
XSRETURN_IV (RETVAL);
}
}
static
XS (XS_Xchat_send_modes)
{
AV *p_targets = NULL;
int modes_per_line = 0;
char sign;
char mode;
int i = 0;
const char **targets;
int target_count = 0;
SV **elem;
dXSARGS;
if (items < 3 || items > 4) {
xchat_print (ph,
"Usage: Xchat::send_modes( targets, sign, mode, modes_per_line)"
);
} else {
if (SvROK (ST (0))) {
p_targets = (AV*) SvRV (ST (0));
target_count = av_len (p_targets) + 1;
targets = malloc (target_count * sizeof (char *));
for (i = 0; i < target_count; i++ ) {
elem = av_fetch (p_targets, i, 0);
if (elem != NULL) {
targets[i] = SvPV_nolen (*elem);
} else {
targets[i] = "";
}
}
} else{
targets = malloc (sizeof (char *));
targets[0] = SvPV_nolen (ST (0));
target_count = 1;
}
if (target_count == 0) {
XSRETURN_EMPTY;
}
sign = (SvPV_nolen (ST (1)))[0];
mode = (SvPV_nolen (ST (2)))[0];
if (items == 4 ) {
modes_per_line = (int) SvIV (ST (3));
}
xchat_send_modes (ph, targets, target_count, modes_per_line, sign, mode);
free (targets);
}
}
static
XS (XS_Xchat_get_info)
{
SV *temp = NULL;
dXSARGS;
if (items != 1) {
xchat_print (ph, "Usage: Xchat::get_info(id)");
} else {
SV *id = ST (0);
const char *RETVAL;
RETVAL = xchat_get_info (ph, SvPV_nolen (id));
if (RETVAL == NULL) {
XSRETURN_UNDEF;
}
if (!strncmp ("win_ptr", SvPV_nolen (id), 7)
|| !strncmp ("gtkwin_ptr", SvPV_nolen (id), 10))
{
XSRETURN_IV (PTR2IV (RETVAL));
} else {
if (
!strncmp ("libdirfs", SvPV_nolen (id), 8) ||
!strncmp ("xchatdirfs", SvPV_nolen (id), 10)
) {
XSRETURN_PV (RETVAL);
} else {
temp = newSVpv (RETVAL, 0);
SvUTF8_on (temp);
PUSHMARK (SP);
XPUSHs (sv_2mortal (temp));
PUTBACK;
}
}
}
}
static
XS (XS_Xchat_context_info)
{
const char *const *fields;
dXSARGS;
if (items > 0 ) {
xchat_print (ph, "Usage: Xchat::Internal::context_info()");
}
fields = xchat_list_fields (ph, "channels" );
XPUSHs (list_item_to_sv (NULL, fields));
XSRETURN (1);
}
static
XS (XS_Xchat_get_prefs)
{
const char *str;
int integer;
SV *temp = NULL;
dXSARGS;
if (items != 1) {
xchat_print (ph, "Usage: Xchat::get_prefs(name)");
} else {
switch (xchat_get_prefs (ph, SvPV_nolen (ST (0)), &str, &integer)) {
case 0:
XSRETURN_UNDEF;
break;
case 1:
temp = newSVpv (str, 0);
SvUTF8_on (temp);
SP -= items;
sp = mark;
XPUSHs (sv_2mortal (temp));
PUTBACK;
break;
case 2:
XSRETURN_IV (integer);
break;
case 3:
if (integer) {
XSRETURN_YES;
} else {
XSRETURN_NO;
}
}
}
}
/* Xchat::Internal::hook_server(name, priority, callback, userdata) */
static
XS (XS_Xchat_hook_server)
{
char *name;
int pri;
SV *callback;
SV *userdata;
SV *package;
xchat_hook *hook;
HookData *data;
dXSARGS;
if (items != 5) {
xchat_print (ph,
"Usage: Xchat::Internal::hook_server(name, priority, callback, userdata, package)");
} else {
name = SvPV_nolen (ST (0));
pri = (int) SvIV (ST (1));
callback = ST (2);
userdata = ST (3);
package = ST (4);
data = NULL;
data = malloc (sizeof (HookData));
if (data == NULL) {
XSRETURN_UNDEF;
}
data->callback = newSVsv (callback);
data->userdata = newSVsv (userdata);
data->depth = 0;
data->package = newSVsv (package);
hook = xchat_hook_server (ph, name, pri, server_cb, data);
XSRETURN_IV (PTR2IV (hook));
}
}
/* Xchat::Internal::hook_command(name, priority, callback, help_text, userdata) */
static
XS (XS_Xchat_hook_command)
{
char *name;
int pri;
SV *callback;
char *help_text = NULL;
SV *userdata;
SV *package;
xchat_hook *hook;
HookData *data;
dXSARGS;
if (items != 6) {
xchat_print (ph,
"Usage: Xchat::Internal::hook_command(name, priority, callback, help_text, userdata, package)");
} else {
name = SvPV_nolen (ST (0));
pri = (int) SvIV (ST (1));
callback = ST (2);
/* leave the help text as NULL if the help text is undefined to avoid
* overriding the default help message for builtin commands */
if (SvOK(ST (3))) {
help_text = SvPV_nolen (ST (3));
}
userdata = ST (4);
package = ST (5);
data = NULL;
data = malloc (sizeof (HookData));
if (data == NULL) {
XSRETURN_UNDEF;
}
data->callback = newSVsv (callback);
data->userdata = newSVsv (userdata);
data->depth = 0;
data->package = newSVsv (package);
hook = xchat_hook_command (ph, name, pri, command_cb, help_text, data);
XSRETURN_IV (PTR2IV (hook));
}
}
/* Xchat::Internal::hook_print(name, priority, callback, [userdata]) */
static
XS (XS_Xchat_hook_print)
{
char *name;
int pri;
SV *callback;
SV *userdata;
SV *package;
xchat_hook *hook;
HookData *data;
dXSARGS;
if (items != 5) {
xchat_print (ph,
"Usage: Xchat::Internal::hook_print(name, priority, callback, userdata, package)");
} else {
name = SvPV_nolen (ST (0));
pri = (int) SvIV (ST (1));
callback = ST (2);
data = NULL;
userdata = ST (3);
package = ST (4);
data = malloc (sizeof (HookData));
if (data == NULL) {
XSRETURN_UNDEF;
}
data->callback = newSVsv (callback);
data->userdata = newSVsv (userdata);
data->depth = 0;
data->package = newSVsv (package);
hook = xchat_hook_print (ph, name, pri, print_cb, data);
XSRETURN_IV (PTR2IV (hook));
}
}
/* Xchat::Internal::hook_timer(timeout, callback, userdata) */
static
XS (XS_Xchat_hook_timer)
{
int timeout;
SV *callback;
SV *userdata;
xchat_hook *hook;
SV *package;
HookData *data;
dXSARGS;
if (items != 4) {
xchat_print (ph,
"Usage: Xchat::Internal::hook_timer(timeout, callback, userdata, package)");
} else {
timeout = (int) SvIV (ST (0));