nuke the repo

1 files changed, 0 insertions, 1882 deletions

diff --git a/plugins/lua/lua.c b/plugins/lua/lua.c
deleted file mode 100644
index 9574fd4d..00000000
--- a/plugins/lua/lua.c
+++ /dev/null
@@ -1,1882 +0,0 @@
-/* 
- * X-Chat 2.0 LUA Plugin
- *
- * Copyright (c) 2007 Hanno Hecker
- * 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; version 2 of the License.
- *
- * 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
- */
-/*
- *	$Id: lua.c 91 2007-06-09 18:44:03Z vetinari $
- *	$Revision: 91 $
- *	$Date: 2007-06-09 20:44:03 +0200 (Szo, 09 jún. 2007) $
- */
-/* 
- * TODO:
- *   * compile (was OK)/run on IRIX
- *   ? localize error msgs? ... maybe later
- *   ? make xchat.print() like print() which does an tostring() on 
- *     everything it gets?
- *   ? add /LUA -s <code>? ... add a new script from cmdline... this state
- *        is not removed after the pcall(), but prints a name, which may
- *        be used to unload this virtual script. ... no xchat_register(),
- *        xchat_init() should be needed
- *        ... don't disable xchat.hook_* for this
- *   ? timer name per state/script and not per plugin?
- */
-#define LXC_NAME "Lua"
-#define LXC_DESC "Lua scripting interface"
-#define LXC_VERSION "0.7 (r91)"
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include "../../src/common/dirent.h"
-#include <errno.h>
-#include <ctype.h>
-
-#ifdef _WIN32
-#include <direct.h>	/* for getcwd */
-#endif
-
-#if !( defined(_WIN32) || defined(LXC_XCHAT_GETTEXT) )
-#  include <libintl.h>
-#endif
-
-#ifndef PATH_MAX /* hurd */
-# define PATH_MAX 1024 
-#endif
-
-#include <lua.h>
-#include <lauxlib.h>
-#include <lualib.h>
-
-#define lua_pop(L,n)  lua_settop(L, -(n)-1)
-
-#include "xchat-plugin.h"
-
-static xchat_plugin *ph; /* plugin handle */
-
-#define LXC_STRIP_COLOR 1
-#define LXC_STRIP_ATTR  2
-#define LXC_STRIP_ALL   (LXC_STRIP_COLOR|LXC_STRIP_ATTR)
-
-/* registered hooks */
-struct lxc_hooks {
-	const char *name;
-	xchat_hook *hook;
-	struct lxc_hooks *next;
-};
-
-/* single linked list of all lua states^Wscripts ;-)  */
-struct lxc_States {
-	lua_State *state;          /* the lua state of the script  */
-	char file[PATH_MAX+1];     /* the file name of the script  */
-	struct lxc_hooks *hooks;   /* all hooks this script registered */
-	void *gui;				/* the gui entry in windows->plugins and scripts... */
-	struct lxc_States *next;
-};
-
-static struct lxc_States *lxc_states = NULL;
-
-/* user/script supplied data for a callback */
-struct lxc_userdata {
-	int idx;					/* table index */
-	int type;				/* lua type:                          */	
-	const char *string;  /* only strings, ...                  */
-	double num;          /* numbers and booleans are supported */
-	struct lxc_userdata *next;	
-};
-
-/* callback data */
-struct lxc_cbdata {
-	lua_State *state;
-	const char *func;
-	xchat_hook *hook; /* timer ... */
-	struct lxc_userdata *data;
-};
-
-static char lxc_event_name[1024] = "\0";
-
-static int lxc_run_hook(char *word[], char *word_eol[], void *data);
-static int lxc_run_print(char *word[], void *data);
-static int lxc_run_timer(void *data);
-
-static int lxc_hook_command(lua_State *L);
-static int lxc_hook_server(lua_State *L);
-static int lxc_hook_print(lua_State *L);
-static int lxc_event(lua_State *L);
-static int lxc_hook_timer(lua_State *L);
-static int lxc_unhook(lua_State *L);
-
-static int lxc_command(lua_State *L);
-static int lxc_print(lua_State *L);
-static int lxc_emit_print(lua_State *L);
-static int lxc_send_modes(lua_State *L);
-static int lxc_find_context(lua_State *L);
-static int lxc_get_context(lua_State *L);
-static int lxc_get_info(lua_State *L);
-static int lxc_get_prefs(lua_State *L);
-static int lxc_set_context(lua_State *L);
-static int lxc_nickcmp(lua_State *L);
-
-static int lxc_list_get(lua_State *L);
-static int lxc_list_fields(lua_State *L);
-static int lxc_gettext(lua_State *L);
-
-static int lxc_bits(lua_State *L);
-
-static luaL_reg lxc_functions[] = {
-	{"hook_command",		lxc_hook_command },
-/* TODO:
-	{"hook_fd",				lxc_hook_fd      },
-*/
-	{"hook_print",			lxc_hook_print   },
-	{"hook_server",		lxc_hook_server  },
-	{"hook_timer",			lxc_hook_timer  },
-	{"unhook",				lxc_unhook  },
-
-	{"event",				lxc_event   },
-
-	{"command",				lxc_command  	  },
-	{"print", 				lxc_print     	  },
-	{"emit_print",			lxc_emit_print },
-	{"send_modes",			lxc_send_modes },
-	{"find_context",		lxc_find_context },
-	{"get_context",		lxc_get_context },
-	{"get_info",			lxc_get_info },
-	{"get_prefs",			lxc_get_prefs },
-	{"set_context",		lxc_set_context },
-
-	{"nickcmp", 			lxc_nickcmp 	},
-
-	{"list_get",			lxc_list_get },
- 	{"list_fields",		lxc_list_fields }, 
-
-   {"gettext",				lxc_gettext},
-/* helper function for bit flags */
-	{"bits",					lxc_bits },
-	{NULL, NULL}
-};
-
-static struct {
-	const char *name;
-	long value;
-} lxc_consts[] = {
-	{"EAT_NONE", 	XCHAT_EAT_NONE},
-	{"EAT_XCHAT", 	XCHAT_EAT_XCHAT},
-	{"EAT_PLUGIN",	XCHAT_EAT_PLUGIN},
-	{"EAT_ALL",		XCHAT_EAT_ALL},
-
-/* unused until hook_fd is done 
-	{"FD_READ",			XCHAT_FD_READ},
-	{"FD_WRITE",		XCHAT_FD_WRITE},
-	{"FD_EXCEPTION",	XCHAT_FD_EXCEPTION},
-	{"FD_NOTSOCKET",	XCHAT_FD_NOTSOCKET},
-   */
-
-	{"PRI_HIGHEST", 	XCHAT_PRI_HIGHEST},
-	{"PRI_HIGH", 		XCHAT_PRI_HIGH},
-	{"PRI_NORM", 		XCHAT_PRI_NORM},
-	{"PRI_LOW", 		XCHAT_PRI_LOW},
-	{"PRI_LOWEST", 	XCHAT_PRI_LOWEST},
-
-	/* for: clean = xchat.strip(dirty, xchat.STRIP_ALL) */
-	{"STRIP_COLOR",	LXC_STRIP_COLOR},
-	{"STRIP_ATTR",    LXC_STRIP_ATTR},
-	{"STRIP_ALL",     LXC_STRIP_ALL},
-
-   /* for xchat.commandf("GUI COLOR %d", xchat.TAB_HILIGHT) */
-	{"TAB_DEFAULT",  0},
-	{"TAB_NEWDATA",  1},
-	{"TAB_NEWMSG",   2},
-	{"TAB_HILIGHT",  3},
-
-	{NULL,				0}
-};
-
-
-#ifdef DEBUG
-static void stackDump (lua_State *L, const char *msg) {
-	int i, t;
-	int top = lua_gettop(L);
-
-	fprintf(stderr, "%s\n", msg);
-	for (i = 1; i <= top; i++) {  /* repeat for each level */
-	 t = lua_type(L, i);
-	 switch (t) {
-
-		case LUA_TSTRING:  /* strings */
-		  fprintf(stderr, "`%s'", lua_tostring(L, i));
-		  break;
-
-		case LUA_TBOOLEAN:  /* booleans */
-		  fprintf(stderr, lua_toboolean(L, i) ? "true" : "false");
-		  break;
-
-		case LUA_TNUMBER:  /* numbers */
-		  fprintf(stderr, "%g", lua_tonumber(L, i));
-		  break;
-
-		default:  /* other values */
-		  fprintf(stderr, "%s", lua_typename(L, t));
-		  break;
-
-	 }
-	 fprintf(stderr, "  ");  /* put a separator */
-  }
-  fprintf(stderr, "\n");  /* end the listing */
-}
-#endif /* DEBUG */
-
-static int lxc__newindex(lua_State *L)
-{
-	int i;
-	const char *name = lua_tostring(L, 2);
-
-	luaL_getmetatable(L, "xchat"); /* 4 */
-
-	lua_pushnil(L);                /* 5 */
-	while (lua_next(L, 4) != 0) {
-		if ((lua_type(L, -2) == LUA_TSTRING) 
-					&& strcmp("__index", lua_tostring(L, -2)) == 0)
-				break; /* now __index is 5, table 6 */	
-		lua_pop(L, 1);
-	}
-
-	lua_pushnil(L);
-	while (lua_next(L, 6) != 0) {
-		if ((lua_type(L, -2) == LUA_TSTRING)
-				&& strcmp(name, lua_tostring(L, -2)) == 0) {
-			for (i=0; lxc_consts[i].name; i++) {
-				if (strcmp(name, lxc_consts[i].name) == 0) {
-					luaL_error(L, 
-						"`xchat.%s' is a readonly constant", lua_tostring(L, 2));
-					return 0;
-				}
-			}
-		}
-		lua_pop(L, 1);
-	}
-
-	lua_pushvalue(L, 2);
-	lua_pushvalue(L, 3);
-	lua_rawset(L, 6);
-
-	lua_settop(L, 1);
-	return 0;
-}
-
-static int luaopen_xchat(lua_State *L)
-{
-	int i;
-/* 
- * wrappers for xchat.printf() and xchat.commandf() 
- * ... xchat.strip 
- */
-#define LXC_WRAPPERS  "function xchat.printf(...)\n" \
-						 "    xchat.print(string.format(unpack(arg)))\n" \
-						 "end\n" \
-						 "function xchat.commandf(...)\n" \
-						 "    xchat.command(string.format(unpack(arg)))\n" \
-						 "end\n" \
-						 "function xchat.strip(str, flags)\n" \
-						 "    if flags == nil then\n" \
-						 "        flags = xchat.STRIP_ALL\n" \
-						 "    end\n" \
-						 "    local bits = xchat.bits(flags)\n" \
-						 "    if bits[1] then\n" \
-						 "        str = string.gsub(\n" \
-						 "            string.gsub(str, \"\\3%d%d?,%d%d?\", \"\"),\n" \
-						 "                \"\\3%d%d?\", \"\")\n" \
-						 "    end\n" \
-						 "    if bits[2] then\n" \
-						 "        -- bold, beep, reset, reverse, underline\n" \
-						 "        str = string.gsub(str,\n" \
-						 "            \"[\\2\\7\\15\\22\\31]\", \"\")\n" \
-						 "    end\n" \
-						 "    return str\n" \
-						 "end\n"
-
-#if defined(LUA_VERSION_NUM) && (LUA_VERSION_NUM >= 501)
-	luaL_register(L, "xchat", lxc_functions);
-	(void)luaL_dostring(L, LXC_WRAPPERS);
-#else
-	luaL_openlib(L, "xchat", lxc_functions, 0);
-	lua_dostring(L, LXC_WRAPPERS);
-#endif
-	
-	luaL_newmetatable(L, "xchat");
-
-	lua_pushliteral(L, "__index");
-	lua_newtable(L); 
-
-	lua_pushstring(L, "ARCH");
-#ifdef _WIN32
-	lua_pushstring(L, "Windows");
-#else
-	lua_pushstring(L, "Unix");
-#endif
-	lua_settable(L, -3); /* add to table __index */
-
-	for (i=0; lxc_consts[i].name; i++) {
-		lua_pushstring(L, lxc_consts[i].name);
-		lua_pushnumber(L, lxc_consts[i].value);
-		lua_settable(L, -3); /* add to table __index */
-	}
-	lua_settable(L, -3); /* add to metatable */
-
-	lua_pushliteral(L, "__newindex");   
-	lua_pushcfunction(L, lxc__newindex); 
-	lua_settable(L, -3);                
-/* 
-	lua_pushliteral(L, "__metatable");
-	lua_pushstring(L, "nothing to see here, move along");
-	lua_settable(L, -3);               
-*/
-	lua_setmetatable(L, -2);
-	lua_pop(L, 1);
-	return 1;
-}
-
-lua_State *lxc_new_state() 
-{
-#if defined(LUA_VERSION_NUM) && (LUA_VERSION_NUM >= 501)
-	lua_State *L = luaL_newstate();     /* opens Lua */
-	luaL_openlibs(L);
-#else
-	lua_State *L = lua_open();     /* opens Lua */
-	luaopen_base(L);    /* opens the basic library */
-	luaopen_table(L);   /* opens the table library */
-	luaopen_io(L);      /* opens the I/O library */
-	luaopen_string(L);  /* opens the string lib. */
-	luaopen_math(L);    /* opens the math lib. */
-#endif
-
-	luaopen_xchat(L);
-	return L;
-}
-
-static int
-lxc_load_file(const char *script)
-{
-	lua_State *L;
-	struct lxc_States *state;  /* pointer to lua states list */
-	struct lxc_States *st;  /* pointer to lua states list */
-
-	L = lxc_new_state();
-	state = malloc(sizeof(struct lxc_States));
-	if (state == NULL) {
-		xchat_printf(ph, "malloc() failed: %s\n", strerror(errno));
-		lua_close(L);
-		return 0;
-	}
-
-	state->state = L;
-	snprintf(state->file, PATH_MAX, script);
-	state->next  = NULL;
-	state->hooks = NULL;
-	state->gui   = NULL;
-
-	if (luaL_loadfile(L, script) || lua_pcall(L, 0, 0, 0)) {
-		xchat_printf(ph, "Lua plugin: error loading script %s", 	
-							lua_tostring(L, -1));
-		lua_close(L);
-		free(state);
-		return 0;
-	}
-
-	if (!lxc_states) 
-		lxc_states = state;
-	else {
-		st = lxc_states;
-		while (st->next)
-			st = st->next;
-		st->next = state;
-	}
-
-	return 1;
-}
-
-static void
-lxc_autoload_from_path(const char *path)
-{
-	DIR *dir;
-	struct dirent *ent;
-	char *file;
-	int len;
-	/* xchat_printf(ph, "loading from %s\n", path); */
-	dir = opendir(path);
-	if (dir) {
-		while ((ent = readdir(dir))) {
-			len = strlen(ent->d_name);
-			if (len > 4 && strcasecmp(".lua", ent->d_name + len - 4) == 0) {
-				file = malloc(len + strlen(path) + 2);
-				if (file == NULL) {
-					xchat_printf(ph, "lxc_autoload_from_path(): malloc failed: %s",
-						strerror(errno));
-					break;
-				}
-				sprintf(file, "%s/%s", path, ent->d_name);
-				(void)lxc_load_file((const char *)file);
-				free(file);
-			}
-		}
-		closedir(dir);
-	}
-}
-
-void lxc_unload_script(struct lxc_States *state)
-{
-	struct lxc_hooks *hooks, *h;
-	struct lxc_cbdata *cb;
-	struct lxc_userdata *ud, *u;
-	lua_State *L = state->state;
-
-	lua_pushstring(L, "xchat_unload");
-	lua_gettable(L, LUA_GLOBALSINDEX);
-	if (lua_type(L, -1) == LUA_TFUNCTION) {
-		if (lua_pcall(L, 0, 0, 0)) {
-			xchat_printf(ph, "Lua plugin: error while unloading script %s", 	
-								lua_tostring(L, -1));
-			lua_pop(L, 1);
-		}
-	}
-
-	if (state->gui)
-		xchat_plugingui_remove(ph, state->gui);
-	state->gui = NULL;
-
-	hooks = state->hooks;
-	while (hooks) {
-		h     = hooks;
-		hooks = hooks->next;
-
-		cb    = xchat_unhook(ph, h->hook);
-		if (cb) {
-			ud    = cb->data;
-			while (ud) {
-				u  = ud;
-				ud = ud->next;
-				free(u);
-			}
-			free(cb);
-		}
-
-		free(h);
-	}
-	lua_close(state->state);
-}
-
-
-static int lxc_cb_load(char *word[], char *word_eol[], void *userdata)
-{
-	int len;
-	struct lxc_States *state;
-	lua_State *L;
-	const char *name, *desc, *vers;
-	const char *xdir = "";
-	char  *buf;
-	char file[PATH_MAX+1];
-	struct stat *st;
-
-	if (word_eol[2][0] == 0)
-		return XCHAT_EAT_NONE;
-	
-	buf = malloc(PATH_MAX + 1);
-	if (!buf) {
-		xchat_printf(ph, "malloc() failed: %s\n", strerror(errno));
-		return XCHAT_EAT_NONE;
-	}
-
-	st = malloc(sizeof(struct stat));
-	if (!st) {
-		xchat_printf(ph, "malloc() failed: %s\n", strerror(errno));
-		free(buf);
-		return XCHAT_EAT_NONE;
-	}
-
- 	len = strlen(word[2]);
-	if (len > 4 && strcasecmp (".lua", word[2] + len - 4) == 0) {
-#ifdef WIN32
-		if (strrchr(word[2], '\\') != NULL)
-#else
-		if (strrchr(word[2], '/') != NULL)
-#endif
-			strncpy(file, word[2], PATH_MAX);
-		else {
-			if (stat(word[2], st) == 0)
-				xdir = getcwd(buf, PATH_MAX);
-			else {
-				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");
-			}
-			snprintf(file, PATH_MAX, "%s/%s", xdir, word[2]);
-		}
-
-		if (lxc_load_file((const char *)file) == 0) {
-			free(st);
-			free(buf);
-			return XCHAT_EAT_ALL;
-		}
-
-		state = lxc_states;
-		while (state) {
-			if (state->next == NULL) {
-				L = state->state;
-
-				lua_pushstring(L, "xchat_register");
-				lua_gettable(L, LUA_GLOBALSINDEX);
-				if (lua_pcall(L, 0, 3, 0)) {
-					xchat_printf(ph, "Lua plugin: error registering script %s", 	
-								lua_tostring(L, -1));
-					lua_pop(L, 1);
-					free(st);
-					free(buf);
-					return XCHAT_EAT_ALL;
-				}
-
-				name = lua_tostring(L, -3);
-				desc = lua_tostring(L, -2);
-				vers = lua_tostring(L, -1);
-				lua_pop(L, 4); /* func + 3 ret value */
-				state->gui = xchat_plugingui_add(ph, state->file, 
-																 name, desc, vers, NULL
-															);
-
-				lua_pushstring(L, "xchat_init");
-				lua_gettable(L, LUA_GLOBALSINDEX);
-				if (lua_type(L, -1) != LUA_TFUNCTION) 
-					lua_pop(L, 1);
-				else {
-					if (lua_pcall(L, 0, 0, 0)) {
-						xchat_printf(ph, 
-									"Lua plugin: error calling xchat_init() %s", 	
-									lua_tostring(L, -1));
-						lua_pop(L, 1);
-					}
-				}
-				free(st);
-				free(buf);
-				return XCHAT_EAT_ALL;
-			}
-			state = state->next;
-		}
-	}
-	free(st);
-	free(buf);
-	return XCHAT_EAT_NONE;
-}
-
-static int lxc_cb_unload(char *word[], char *word_eol[], void *userdata)
-{
-	int len;
-	struct lxc_States *state;
-	struct lxc_States *prev = NULL;
-	char *file;
-
-	if (word_eol[2][0] == 0)
-		return XCHAT_EAT_NONE;
-
-	len = strlen(word[2]);
-	if (len > 4 && strcasecmp(".lua", word[2] + len - 4) == 0) {
-		state = lxc_states;
-		while (state) {
-			/* 
-			 * state->file is the full or relative path, always with a '/' inside,
-			 * even if loaded via '/LOAD script.lua'. So strrchr() will never
-			 * be NULL.
-			 * ... we just inspect the script name w/o path to see if it's the 
-			 * right one to unload
-			 */
-			file = strrchr(state->file, '/') + 1; 
-			if ((strcmp(state->file, word[2]) == 0) 
-					|| (strcasecmp(file, word[2]) == 0)) {
-				lxc_unload_script(state);
-				if (prev) 
-					prev->next = state->next;
-				else
-					lxc_states = state->next;
-				xchat_printf(ph, "Lua script %s unloaded", file);
-				free(state);
-				return XCHAT_EAT_ALL;
-			}
-			prev  = state;
-			state = state->next;
-		}
-	}
-	return XCHAT_EAT_NONE;
-}
-
-static int lxc_cb_lua(char *word[], char *word_eol[], void *userdata)
-{
-	lua_State *L = lxc_new_state();
-	if (word[2][0] == '\0') {
-		xchat_printf(ph, "LUA: Usage: /LUA LUA_CODE... execute LUA_CODE");
-		return XCHAT_EAT_ALL;
-	}
-	if (luaL_loadbuffer(L, word_eol[2], strlen(word_eol[2]), "/LUA")) {
-		xchat_printf(ph, "LUA: error loading line %s", lua_tostring(L, -1));
-		lua_pop(L, 1);
-	}
-
-#define LXC_HOOK_DISABLE "xchat.hook_command = nil\n" \
-								 "xchat.hook_server  = nil\n" \
-								 "xchat.hook_print   = nil\n" \
-								 "xchat.hook_timer   = nil\n"
-
-#if defined(LUA_VERSION_NUM) && (LUA_VERSION_NUM >= 501)
-	(void)luaL_dostring(L, LXC_HOOK_DISABLE);
-#else
-	lua_dostring(L, LXC_HOOK_DISABLE);
-#endif
-
-	if (lua_pcall(L, 0, 0, 0)) {
-		xchat_printf(ph, "LUA: error executing line %s", lua_tostring(L, -1));
-		lua_pop(L, 1);
-	}
-
-	lua_close(L);
-	return XCHAT_EAT_ALL;
-}
-
-int xchat_plugin_init(xchat_plugin *plugin_handle,
-                      char **plugin_name,
-                      char **plugin_desc,
-                      char **plugin_version,
-                      char *arg)
-{
-	struct lxc_States	*state;	
-	lua_State *L;
-	const char *xdir;
-	const char *name, *desc, *vers;
-   /* we need to save this for use with any xchat_* functions */
-   ph = plugin_handle;
-
-   /* tell xchat our info */
-   *plugin_name = LXC_NAME;
-   *plugin_desc = LXC_DESC;
-   *plugin_version = LXC_VERSION;
-
-	xchat_hook_command(ph, "LOAD", XCHAT_PRI_NORM, lxc_cb_load, NULL, NULL);
-	xchat_hook_command(ph, "UNLOAD", XCHAT_PRI_NORM, lxc_cb_unload, NULL, NULL);
-	xchat_hook_command(ph, "LUA", XCHAT_PRI_NORM, lxc_cb_lua, "Usage: LUA <code>, executes <code> in a new lua state", NULL);
-
-	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");
-		
-	lxc_autoload_from_path(xdir);
-
-	if (!lxc_states) /* no scripts loaded */
-		return 1;
-	
-	state = lxc_states;
-	while (state) {
-		L = state->state;
-		lua_pushstring(L, "xchat_register");
-		lua_gettable(L, LUA_GLOBALSINDEX);
-		if (lua_pcall(L, 0, 3, 0)) {
-			xchat_printf(ph, "Lua plugin: error registering script %s", 	
-								lua_tostring(L, -1));
-			lua_pop(L, 1);
-			state = state->next;
-			continue;
-		}
-
-		name = lua_tostring(L, -3);
-		desc = lua_tostring(L, -2);
-		vers = lua_tostring(L, -1);
-		lua_pop(L, 4); /* func + 3 ret value */
-		state->gui = xchat_plugingui_add(ph, state->file, name, desc, vers, NULL);
-
-		lua_pushstring(L, "xchat_init");
-		lua_gettable(L, LUA_GLOBALSINDEX);
-		if (lua_type(L, -1) != LUA_TFUNCTION) 
-			lua_pop(L, 1);
-		else {
-			if (lua_pcall(L, 0, 0, 0)) {
-				xchat_printf(ph, "Lua plugin: error calling xchat_init() %s", 	
-								lua_tostring(L, -1));
-				lua_pop(L, 1);
-			}
-		}
-		state = state->next;
-	}
-	xchat_printf(ph, "Lua interface (v%s) loaded", LXC_VERSION);
-	return 1; 
-}
-
-int xchat_plugin_deinit(xchat_plugin *plug_handle) 
-{
-	struct lxc_States *state, *st;
-
-	state = lxc_states;
-	while (state) {
-		lxc_unload_script(state);
-		xchat_printf(ph, "Lua script %s unloaded", state->file);
-		st    = state;
-		state = state->next;
-		free(st);
-	}
-	xchat_printf(plug_handle, "Lua plugin v%s removed", LXC_VERSION);
-	return 1;
-}
-
-/*
- * lua:  func_name(word, word_eol, data)
- * desc: your previously hooked callback function for hook_command() and
- *       hook_server(), you must return one of the xchat.EAT_* constants
- * ret:  none
- * args: 
- *       * word (table): the incoming line split into words (max 32)
- *       * word_eol (table): 
- *         for both see 
- *          http://xchat.org/docs/plugin20.html#word
- *       * data (table): the data table you passed to the hook_command() /
- *         hook_server() as 5th arg
- */
-static int lxc_run_hook(char *word[], char *word_eol[], void *data)
-{
-	struct lxc_cbdata *cb   = data;
-	lua_State *L            = cb->state;
-	struct lxc_userdata *ud = cb->data;
-	struct lxc_userdata *u;
-	int i;
-	lua_pushstring(L, cb->func);
-	lua_gettable(L, LUA_GLOBALSINDEX);
-
-	strcpy(lxc_event_name, word[0]);
-	lua_newtable(L);
-	for (i=1; i<=31 && word[i][0]; i++) {
-		lua_pushnumber(L, i);
-		lua_pushstring(L, word[i]);
-		lua_settable(L, -3);
-	}
-
-	lua_newtable(L);
-	for (i=1; i<=31 && word_eol[i][0]; i++) {
-		lua_pushnumber(L, i);
-		lua_pushstring(L, word_eol[i]);
-		lua_settable(L, -3);
-	}
-
-	lua_newtable(L);
-	u = ud;
-	while (u) {
-		lua_pushnumber(L, u->idx);
-		switch (u->type) {
-			case LUA_TSTRING:
-				lua_pushstring(L, u->string);
-				break;
-			case LUA_TNUMBER:
-				lua_pushnumber(L, u->num);
-				break;
-			case LUA_TBOOLEAN:
-				lua_pushboolean(L, (((int)u->num == 0) ? 0 : 1));
-				break;
-			default: /* LUA_TNIL or others */
-				lua_pushnil(L);
-				break;
-		}
-		lua_settable(L, -3);
-		u = u->next;
-	}
-
-	if (lua_pcall(L, 3, 1, 0)) {
-		xchat_printf(ph, "failed to call callback for '%s': %s", 
-				word[1], lua_tostring(L, -1)
-			);
-		lua_pop(L, 1);
-		return XCHAT_EAT_NONE;
-	}
-
-	if (lua_type(L, -1) != LUA_TNUMBER) {
-		xchat_printf(ph, "callback for '%s' did not return number...", word[1]);
-		return XCHAT_EAT_NONE;
-	}
-
-	i = (int)lua_tonumber(L, -1);
-	lua_pop(L, 1);
-	return i;
-}
-
-static int lxc_get_userdata(int pos, struct lxc_cbdata *cb)
-{
-	struct lxc_userdata *ud, *u;
-	lua_State *L = cb->state;
-	int i, t;
-
-	t = lua_type(L, pos);
-	if (t == LUA_TNIL)
-		return 1;
-	if (t != LUA_TTABLE)
-		return 0;
-
-	i = 1;
-	while (1) {
-		lua_pushnumber(L, i);
-		lua_gettable(L, -2);
-
-		t = lua_type(L, -1);
-		if (t == LUA_TNIL) {
-			lua_pop(L, 1);
-			break;
-		}
-
-		ud = malloc(sizeof(struct lxc_userdata));
-		if (!ud) {
-			xchat_printf(ph, "lxc_get_userdata(): failed to malloc: %s", 
-																strerror(errno));
-			if (cb->data != NULL) {
-				ud = cb->data;
-				while (ud) {
-					u  = ud;
-					ud = ud->next;
-					free(u);
-				}
-			}
-			/* free(cb); NO! */
-			lua_pushnil(L);
-			return 0;
-		}
-		ud->idx = i;
-		ud->next = NULL;
-		switch (t) {
-			case LUA_TSTRING:
-				ud->string = lua_tostring(L, -1);
-				ud->type   = LUA_TSTRING;
-				break;
-			case LUA_TNUMBER:
-				ud->num    = lua_tonumber(L, -1);
-				ud->type   = LUA_TNUMBER;
-				break;
-			case LUA_TBOOLEAN:
-				ud->num    = (double)lua_toboolean(L, -1);
-				ud->type   = LUA_TBOOLEAN;
-				break;
-			default:
-				ud->type   = LUA_TNIL;
-				break;
-		}
-		lua_pop(L, 1);
-
-		if (cb->data == NULL)
-			cb->data = ud;
-		else {
-			u = cb->data;
-			while (u->next)
-				u = u->next;
-			u->next = ud;
-		}
-		i++;
-	} /* END while (1) */
-	return 1;
-}
-
-/* 
- * lua:  xchat.hook_command(name, func_name, prio, help_str, data)
- * desc: Adds a new /command. This allows your program to handle commands 
- *       entered at the input box. To capture text without a "/" at the start 
- *       (non-commands), you may hook a special name of "". i.e 
- *           xchat.hook_command( "", ...)
- * 		Starting from version 2.6.8, commands hooked that begin with a 
- * 		period ('.') will be hidden in /HELP and /HELP -l. 
- * ret:  true... or false if something went wrong while registering hook
- * args: 
- *       * name (string): the name of the new command
- *       * func_name (string): the lua function to be called when command is
- *          entered
- *       * prio (number): use one of the xchat.PRIO_*
- *       * help_str (string): help for the new command... use nil for no help
- *       * data (table): table with strings, numbers and booleans, which will
- *         be passed to func_name as last argument.
- */
-static int lxc_hook_command(lua_State *L)
-{
-	xchat_hook *hook;
-	const char *help, *command, *func;
-	double prio;
-	struct lxc_hooks *hooks, *h;
-	struct lxc_States *st;
-	struct lxc_cbdata *cb;
-
-
-	if (lua_gettop(L) < 5) /* expand to five args if necessary */
-		lua_settop(L, 5);
-
-	cb = malloc(sizeof(struct lxc_cbdata));
-	if (!cb) {
-		xchat_printf(ph, "lxc_hook_command(): failed to malloc: %s", 
-																	strerror(errno));
-		lua_pushboolean(L, 0);
-		return 1;
-	}
-
-	cb->state = L;
-	cb->data = NULL;
-
-	command 	= luaL_checkstring(L, 1);
-	func     = luaL_checkstring(L, 2);
-	cb->func = func;
-	cb->hook = NULL;
-
-	if (lua_type(L, 3) == LUA_TNIL)
-		prio = XCHAT_PRI_NORM;
-	else
-		prio = luaL_checknumber(L, 3);
-
-	if (lua_type(L, 4) == LUA_TSTRING) {
-		help = luaL_checkstring(L, 4);
-		if (strlen(help) == 0)
-			help = NULL;
-	}
-	else
-		help = NULL;
-	
-	if (lxc_get_userdata(5, cb) == 0) 
-		lua_pushboolean(L, 0);
-	else {
-		h = malloc(sizeof(struct lxc_hooks));
-		if (!h) {
-			xchat_printf(ph, "lxc_hook_command(): failed to malloc: %s", 
-																	strerror(errno));
-			lua_pushboolean(L, 0);
-			return 1;
-		}
-		hook    = xchat_hook_command(ph, command, prio, lxc_run_hook, help, cb);
-		h->hook = hook;
-		h->name = command;
-		h->next = NULL;
-		st      = lxc_states;
-		while (st) {
-			if (st->state == L) {
-				if (!st->hooks) 
-					st->hooks = h;
-				else {
-					hooks     = st->hooks;
-					while (hooks->next) 
-						hooks = hooks->next;
-					hooks->next = h;
-				}
-				break;
-			}
-			st = st->next;
-		}
-		lua_pushboolean(L, 1);
-	}
-	return 1;
-}
-
-/*
- * lua:  func_name(word, data)
- * desc: your previously hooked callback function for hook_print(), 
- *       you must return one of the xchat.EAT_* constants
- * ret:  none
- * args: 
- *       * word (table): the incoming line split into words (max 32)
- *         (see http://xchat.org/docs/plugin20.html#word)
- *       * data (table): the data table you passed to the hook_print() /
- *         as 4th arg
- */
-static int lxc_run_print(char *word[], void *data)
-{
-	struct lxc_cbdata *cb = data;
-	lua_State *L          = cb->state;
-	int i;
-
-	lua_pushstring(L, cb->func);
-	lua_gettable(L, LUA_GLOBALSINDEX);
-
-	strcpy(lxc_event_name, word[0]);
-	lua_newtable(L);
-	for (i=1; i<=31 && word[i][0]; i++) {
-		lua_pushnumber(L, i);
-		lua_pushstring(L, word[i]);
-		lua_settable(L, -3);
-	}
-
-	if (lua_pcall(L, 1, 1, 0)) {
-		xchat_printf(ph, "failed to call callback for '%s': %s", 
-			word[1], lua_tostring(L, -1));
-		lua_pop(L, 1);
-		return 0;
-	}
-
-	if (lua_type(L, -1) != LUA_TNUMBER) {
-		xchat_printf(ph, "callback for '%s' didn't return number...", word[1]);
-		return XCHAT_EAT_NONE;
-	}
-	i = (int)lua_tonumber(L, -1);
-	lua_pop(L, 1);
-	return i;
-}
-
-/* 
- * lua:  xchat.hook_print(name, func_name, prio, data)
- * desc: Registers a function to trap any print events. The event names may 
- *       be any available in the "Advanced > Text Events" window. There are 
- *       also some extra "special" events you may hook using this function,
- *       see: http://xchat.org/docs/plugin20.html#xchat_hook_print
- * ret:  true... or false if something went wrong while registering hook
- * args: 
- *       * name (string): the name of the new command
- *       * prio (number): use one of the xchat.PRIO_*
- *       * func_name (string): the lua function to be called when command is
- *         entered
- *       * data (table): table with strings, numbers and booleans, which will
- *         be passed to func_name as last argument.
- */
-static int lxc_hook_print(lua_State *L)
-{
-	xchat_hook *hook;
-	struct lxc_hooks *hooks, *h;
-	struct lxc_States *st;
-	struct lxc_cbdata *cb = malloc(sizeof(struct lxc_cbdata));
-	const char *name, *func;
-	double prio;
-
-	if (!cb) {
-		luaL_error(L, "lxc_hook_print(): failed to malloc: %s", strerror(errno));
-		return 0;
-	}
-
-	if (lua_gettop(L) < 4) /* expand to 4 args if necessary */
-		lua_settop(L, 4);
-
-	name = luaL_checkstring(L, 1);
-	func = luaL_checkstring(L, 2);
-	if (lua_type(L, 3) == LUA_TNIL)
-		prio = XCHAT_PRI_NORM;
-	else
-		prio = luaL_checknumber(L, 3);
-
-	cb->state = L;
-	cb->func  = func;
-	cb->data  = NULL;
-	cb->hook  = NULL;
-
-	if (lxc_get_userdata(4, cb) == 0) 
-		lua_pushboolean(L, 0);
-	else {
-		h = malloc(sizeof(struct lxc_hooks));
-		if (!h) {
-			xchat_printf(ph, "lxc_hook_print(): failed to malloc: %s", 
-																	strerror(errno));
-			lua_pushboolean(L, 0);
-			return 1;
-		}
-		hook 	  = xchat_hook_print(ph, name, prio, lxc_run_print, cb); 
-		h->hook = hook;
-		h->name = name;
-		h->next = NULL;
-		st      = lxc_states;
-		while (st) {
-			if (st->state == L) {
-				if (!st->hooks)
-					st->hooks = h;
-				else {
-					hooks     = st->hooks;
-					while (hooks->next) 
-						hooks = hooks->next;
-					hooks->next = h;
-				}
-				break;
-			}
-			st = st->next;
-		}
-		lua_pushboolean(L, 1);
-	}
-	return 1;
-}
-
-/*
- * lua:  xchat.hook_server(name, func_name, prio, data)
- * desc: Registers a function to be called when a certain server event 
- *       occurs. You can use this to trap PRIVMSG, NOTICE, PART, a server 
- *       numeric etc... If you want to hook every line that comes from the 
- *       IRC server, you may use the special name of "RAW LINE".
- * ret:  true... or false if something went wrong while registering
- * args: 
- *       * name (string): the event name / numeric (yes, also as a string)
- *       * prio (number): one of the xchat.PRIO_* constants
- *       * func_name (string): the function to be called, when the event
- *           happens
- *       * data (table)... see xchat.hook_command()
- */
-static int lxc_hook_server(lua_State *L)
-{
-	xchat_hook *hook;
-	struct lxc_hooks *hooks, *h;
-	struct lxc_States *st;
-	const char *name, *func;
-	double prio;
-
-	struct lxc_cbdata *cb = malloc(sizeof(struct lxc_cbdata));
-	if (!cb) {
-		xchat_printf(ph, "lxc_hook_server(): failed to malloc: %s", 
-																	 strerror(errno));
-		lua_pushnil(L);
-		return 1;
-	}
-
-	if (lua_gettop(L) < 4) /* expand to 4 args if necessary */
-		lua_settop(L, 4);
-
-	name = luaL_checkstring(L, 1);
-	func = luaL_checkstring(L, 2);
-	if (lua_type(L, 3) == LUA_TNIL)
-		prio = XCHAT_PRI_NORM;
-	else
-		prio = luaL_checknumber(L, 3);
-
-	cb->state = L;
-	cb->func = func;
-	cb->data = NULL;
-	cb->hook = NULL;
-
-	if (lxc_get_userdata(4, cb) == 0) 
-		lua_pushboolean(L, 0);
-	else {
-		h = malloc(sizeof(struct lxc_hooks));
-		if (!h) {
-			xchat_printf(ph, "lxc_hook_server(): failed to malloc: %s", 
-																	strerror(errno));
-			lua_pushboolean(L, 0);
-			return 1;
-		}
-		hook    = xchat_hook_server(ph, name, prio, lxc_run_hook, cb); 
-		h->hook = hook;
-		h->name = name;
-		h->next = NULL;
-		st      = lxc_states;
-		while (st) {
-			if (st->state == L) {
-				if (!st->hooks)
-					st->hooks = h;
-				else {
-					hooks     = st->hooks;
-					while (hooks->next) 
-						hooks = hooks->next;
-					hooks->next = h;
-				}
-				break;
-			}
-			st = st->next;
-		}
-		lua_pushboolean(L, 1);
-	}
-	return 1;
-}
-
-/* 
- * lua:  xchat.hook_timer(timeout, func_name, data)
- * desc: Registers a function to be called every "timeout" milliseconds.
- * ret:  true (or false on error while registering)
- * args: 
- *       * timeout (number): Timeout in milliseconds (1000 is 1 second). 
- *       * func_name (string): Callback function. This will be called 
- *           every "timeout" milliseconds. 
- *       * data (table): see xchat.hook_command()
- */
-
-static unsigned long long lxc_timer_count = 0;
-
-static int lxc_hook_timer(lua_State *L)
-{
-	xchat_hook *hook;
-	struct lxc_hooks *hooks, *h;
-	struct lxc_States *st;
-	double timeout;
-	const char *func;
-	char name[32];
-
-	struct lxc_cbdata *cb = malloc(sizeof(struct lxc_cbdata));
-	if (!cb) {
-		luaL_error(L, "lxc_hook_timer(): failed to malloc: %s", strerror(errno));
-		lua_pushnil(L);
-		return 1;
-	}
-
-	if (lua_gettop(L) < 3) /* expand to 3 args if necessary */
-		lua_settop(L, 3);
-
-	timeout = luaL_checknumber(L, 1);
-	func    = luaL_checkstring(L, 2);
-
-	cb->state = L;
-	cb->func  = func;
-	cb->data  = NULL;
-
-	if (lxc_get_userdata(3, cb) == 0) 
-		lua_pushnil(L);
-	else {
-		h = malloc(sizeof(struct lxc_hooks));
-		if (!h) {
-			luaL_error(L, "lxc_hook_timer(): failed to malloc: %s", 
-				strerror(errno));
-			return 0;
-		}
-		hook 	   = xchat_hook_timer(ph, timeout, lxc_run_timer, cb); 
-		cb->hook = hook;
-		h->hook  = hook;
-		h->next  = NULL;
-		snprintf(name, 31, "timer%llu", lxc_timer_count++);
-		h->name  = name;
-		lua_pushstring(L, name);
-
-		st       = lxc_states;
-		while (st) {
-			if (st->state == L) {
-				if (!st->hooks)
-					st->hooks = h;
-				else {
-					hooks     = st->hooks;
-					while (hooks->next)
-						hooks = hooks->next;
-					hooks->next = h;
-				}
-				break;
-			}
-			st = st->next;
-		}
-	}
-	return 1;
-}
-
-static void lxc_unhook_timer(lua_State *L, xchat_hook *hook)
-{
-	struct lxc_States *state;
-	struct lxc_hooks *hooks, *h, *prev_hook;
-	struct lxc_cbdata *cb;
-	struct lxc_userdata *ud, *u;
-
-	prev_hook = NULL;
-	state = lxc_states;
-	while (state) {
-		if (state->state == L) {
-			hooks = state->hooks;
-			while (hooks) {
-				if (hooks->hook == hook) {
-					h  = hooks;
-					if (prev_hook)
-						prev_hook->next = hooks->next;
-					else
-						state->hooks = hooks->next;
-
-					cb = xchat_unhook(ph, h->hook);
-					if (cb) {
-						 ud = cb->data;
-						 while (ud) {
-							 u  = ud;
-							 ud = ud->next;
-							 free(u);
-						 }
-						 free(cb);
-					}
-
-					free(h);
-					return;
-				}
-				prev_hook = hooks;
-				hooks = hooks->next;
-			}
-			break;
-		}
-		state = state->next;
-	}
-}
-
-/* 
- * lua:  func_name(data)
- * desc: the callback function for the registered timer hook, return
- *       true to keep this timer going, false to stop it
- * ret:  none
- * args: 
- *       * data (table): the table you gave the hook_timer() as last
- *           argument
- */
- static int lxc_run_timer(void *data)
-{
-	int ret;
-	struct lxc_cbdata *cb = data;
-	xchat_hook *hook      = cb->hook;
-	lua_State *L          = cb->state;
-
-	lua_pushstring(L, cb->func);
-	lua_gettable(L, LUA_GLOBALSINDEX);
-
-	if (lua_pcall(L, 0, 1, 0)) {
-		xchat_printf(ph, "failed to call timer callback for '%s': %s", 
-			cb->func, lua_tostring(L, -1));
-		lua_pop(L, 1);
-		lxc_unhook_timer(L, hook);
-		return 0;
-	}
-
-	if (lua_type(L, -1) != LUA_TBOOLEAN) {
-		xchat_printf(ph, 
-			"timer callback for '%s' didn't return a boolean", cb->func);
-		lua_pop(L, 1);
-		lxc_unhook_timer(L, hook);
-		return 0;
-	}
-
-	ret = (lua_toboolean(L, -1) == 0) ? 0 : 1;
-	lua_pop(L, 1);
-
-	if (ret == 0)
-		lxc_unhook_timer(L, hook);
-
-	return ret;
-}
-
-/*
- * lua:  xchat.unhook(name)
- * desc: unhooks a previously hooked hook 
- * ret:  true if the hook existed, else false..
- * args: 
- *       * name (string): name of a registered hook (e.g. with 
- *         xchat.hook_command("whois", ... ) you would unhook "whois"
- *         ... see timer warnings... there's currently just one "timer"
- *         to unhook
- */
-static int lxc_unhook(lua_State *L)
-{
-	struct lxc_States *state;
-	struct lxc_hooks *hooks, *h, *prev_hook;
-	struct lxc_cbdata *cb;
-	struct lxc_userdata *ud, *u;
-	int done = 0;
-	const char *name = luaL_checkstring(L, 1);
-
-	prev_hook = NULL;
-	state = lxc_states;
-	while (state) {
-		if (state->state == L) {
-			hooks = state->hooks;
-			while (hooks) {
-				if (strcasecmp(hooks->name, name) == 0) {
-					h  = hooks;
-					if (prev_hook)
-						prev_hook->next = hooks->next;
-					else
-						state->hooks = hooks->next;
-
-					cb = xchat_unhook(ph, h->hook);
-					if (cb) {
-						ud = cb->data;
-						while (ud) {
-							u  = ud;
-							ud = ud->next;
-							free(u);
-						}
-						free(cb);
-					}
-
-					free(h);
-					done = 1;
-					break;
-				}
-				prev_hook = hooks;
-				hooks = hooks->next;
-			}
-			break;
-		}
-		state = state->next;
-	}
-	lua_pushboolean(L, done);
-	return 1;
-}
-
-static int lxc_event(lua_State *L)
-{
-	lua_pushstring(L, lxc_event_name);
-	return 1;
-}
-
-/* 
- * lua:  xchat.command(command) 
- * desc: executes a command as if it were typed in xchat's input box. 
- * ret:  none
- * args: 
- *       * command (string): command to execute, without the forward slash "/". 
- */
-static int lxc_command(lua_State *L)
-{
-	const char *command = luaL_checkstring(L, 1);
-	xchat_command(ph, command);
-	return 0;
-}
-
-/* 
- * lua:  xchat.print(text)
- * desc: Prints some text to the current tab/window.
- * ret:  none
- * args: 
- *       * text (string): the text to print
- */
-static int lxc_print(lua_State *L)
-{
-	const char *txt = luaL_checkstring(L, 1);
-	// FIXME? const char *txt = lua_tostring(L, 1);
-	xchat_print(ph, txt);
-	return 0;
-}
-
-/*
- * lua: xchat.emit_print(event, text, [text2, ...])
- * desc: Generates a print event. This can be any event found in the 
- *       Preferences > Advanced > Text Events window. The vararg parameter 
- *       list MUST be no longer than four (4) parameters. 
- *       Special care should be taken when calling this function inside a 
- *       print callback (from xchat.hook_print()), as not to cause endless 
- *       recursion. 
- * ret:  true on success, false on error
- * args: 
- *       * event (string): the event name from the references > Advanced > 
- *         Text Events window
- *       * text (string)
- *         text2 (string)
- *         ... (string(s)):
- *           parameters for the given event
- */
-static int lxc_emit_print(lua_State *L)
-{
-
-	int n = lua_gettop(L);
-	const char *text[5];
-	const char *event;
-	int i = 2;
-
-	if (n > 6)
-		luaL_error(L, "too many arguments to xchat.emit_print()");
-
-	event = luaL_checkstring(L, 1);
-	while (i <= n) {
-		text[i-2] = luaL_checkstring(L, i);
-		i++;
-	}
-	switch (n-1) {
-		case 0:
-			i = xchat_emit_print(ph, event, NULL);
-			break;
-		case 1:
-			i = xchat_emit_print(ph, event, text[0], NULL);
-			break;
-		case 2:
-			i = xchat_emit_print(ph, event, text[0], text[1], NULL);
-			break;
-		case 3:
-			i = xchat_emit_print(ph, event, text[0], text[1], text[2], NULL);
-			break;
-		case 4:
-			i = xchat_emit_print(ph, event, text[0], text[1], text[2], text[3], NULL);
-			break;
-	}
-	lua_pushboolean(L, (i == 0) ? 0 : 1);
-	return 1;
-}
-
-/* 
- * lua:  xchat.send_modes(targets, sign, mode [, modes_per_line])
- * desc: Sends a number of channel mode changes to the current channel. 
- *       For example, you can Op a whole group of people in one go. It may 
- *       send multiple MODE lines if the request doesn't fit on one. Pass 0 
- *       for modes_per_line to use the current server's maximum possible. 
- *       This function should only be called while in a channel context. 
- * ret:  none
- * args: 
- *       * targets (table): list of names
- *       * sign (string): mode sign, i.e. "+" or "-", only the first char of
- *            this is used (currently unchecked if it's really "+" or "-")
- *       * mode (string): mode char, i.e. "o" for opping, only the first 
- *            char of this is used (currently unchecked, what char)
- *       * modes_per_line (number): [optional] number of modes per line
- */
-static int lxc_send_modes(lua_State *L)
-{
-	int i = 1;
-	const char *name, *mode, *sign;
-	const char *targets[4096];
-	int num = 0; /* modes per line */
-
-	if (!lua_istable(L, 1)) {
-		luaL_error(L, 
-			"xchat.send_modes(): first argument is not a table: %s", 
-			lua_typename(L, lua_type(L, 1)));
-		return 0;
-	}
-
-	while (1) {
-		lua_pushnumber(L, i); /* push index on stack */
-		lua_gettable(L, 1);   /* and get the element @ index */
-		if (lua_isnil(L, -1)) { /* end of table */
-			lua_pop(L, 1);
-			break;
-		}
-
-		if (lua_type(L, -1) != LUA_TSTRING) { /* oops, something wrong */
-			luaL_error(L, 
-				"lua: xchat.send_modes(): table element #%d not a string: %s",
-				i, lua_typename(L, lua_type(L, -1)));
-			lua_pop(L, 1);
-			return 0;
-		}
-
-		name = lua_tostring(L, -1);
-		if (name == NULL) { /* this should not happen, but... */
-			lua_pop(L, 1);
-			break;
-		}
-
-		targets[i-1] = name;
-		lua_pop(L, 1); /* take index from stack */
-		++i;
-	}
-
-	sign = luaL_checkstring(L, 2);
-	if (sign[0] == '\0' || sign[1] != '\0') {
-		luaL_error(L, "argument #2 (mode sign) does not have length 1");
-		return 0;
-	}
-	if ((sign[0] != '+') && (sign[0] != '-')) {
-		luaL_error(L, "argument #2 (mode sign) is not '+' or '-'");
-		return 0;
-	}
-
-	mode = luaL_checkstring(L, 3);
-	if (mode[0] == '\0' || mode[1] != '\0') {
-		luaL_error(L, "argument #3 (mode char) does not have length 1");
-		return 0;
-	}
-	if (!isalpha((int)mode[0]) || !isascii((int)mode[0])) {
-		luaL_error(L, "argument #3 is not a valid mode character");
-		return 0;
-	}
-
-	if (lua_gettop(L) == 4)
-		num = luaL_checknumber(L, 4);
-	
-	xchat_send_modes(ph, targets, i-1, num, sign[0], mode[0]);
-	return 0;
-}
-
-/*
- * lua:  xchat.find_context(srv, chan)
- * desc: Finds a context based on a channel and servername. If servname is nil,
- *       it finds any channel (or query) by the given name. If channel is nil, 
- *       it finds the front-most tab/window of the given servname. If nil is 
- *       given for both arguments, the currently focused tab/window will be 
- *       returned.
- *       Changed in 2.6.1. If servname is nil, it finds the channel (or query)
- *       by the given name in the same server group as the current context. 
- *       If that doesn't exists then find any by the given name. 
- * ret:  context number (DON'T modify)
- * args: 
- *       * srv (string or nil): server name
- *       * chan (string or nil): channel / query name
- */
-static int lxc_find_context(lua_State *L)
-{
-	const char *srv, *chan;
-	long ctx;
-	xchat_context *ptr;
-
-	if (lua_type(L, 1) == LUA_TSTRING) {
-		srv = lua_tostring(L, 1);
-		if (srv[0] == '\0')
-			srv = NULL;
-	}
-	else
-		srv = NULL;
-	
-	if (lua_type(L, 2) == LUA_TSTRING) {
-		chan = lua_tostring(L, 2);
-		if (chan[0] == '\0')
-			chan = NULL;
-	}
-	else
-		chan = NULL;
-	
-	ptr = xchat_find_context(ph, srv, chan);
-	ctx = (long)ptr;
-#ifdef DEBUG
-	fprintf(stderr, "find_context(): %#lx\n", (long)ptr);
-#endif
-	lua_pushnumber(L, (double)ctx);
-	return 1;
-}
-
-/* 
- * lua:  xchat.get_context()
- * desc: Returns the current context for your plugin. You can use this later 
- *       with xchat_set_context. 
- * ret:  context number ... DON'T modifiy
- * args: none
- */
-static int lxc_get_context(lua_State *L)
-{
-	long ptr;
-	xchat_context *ctx = xchat_get_context(ph);
-	ptr = (long)ctx;
-#ifdef DEBUG
-	fprintf(stderr, "get_context(): %#lx\n", ptr);
-#endif
-	lua_pushnumber(L, (double)ptr);
-	return 1;
-}
-
-/* 
- * lua:  xchat.get_info(id)
- * desc: Returns information based on your current context.
- * ret:  the requested string or nil on error
- * args: 
- *       * id (string): the wanted information
- */
-static int lxc_get_info(lua_State *L)
-{
-	const char *id    = luaL_checkstring(L, 1);
-	const char *value = xchat_get_info(ph, id);
-	if (value == NULL)
-		lua_pushnil(L);
-	else
-		lua_pushstring(L, value);
-	return 1;
-}
-
-/*
- * lua:  xchat.get_prefs(name)
- * desc: Provides xchat's setting information (that which is available 
- *       through the /set command). A few extra bits of information are 
- *       available that don't appear in the /set list, currently they are:
- *       * state_cursor: Current input-box cursor position (characters, 
- *                       not bytes). Since 2.4.2.
- *       *id:            Unique server id. Since 2.6.1.
- * ret:  returns the string/number/boolean for the given config var
- *       or nil on error
- * args:
- *       * name (string): the wanted setting's name
- */
-static int lxc_get_prefs(lua_State *L)
-{
-	int i;
-	const char *str;
-	const char *name = luaL_checkstring(L, 1);
-	/* 
-	 * luckily we can store anything in a lua var... this makes the 
-	 * xchat lua api more user friendly ;-) 
-	 */
-	switch (xchat_get_prefs(ph, name, &str, &i)) { 
-		case 0: /* request failed */
-			lua_pushnil(L);
-			break;
-		case 1: 
-			lua_pushstring(L, str);
-			break;
-		case 2:
-			lua_pushnumber(L, (double)i);
-			break;
-		case 3:
-			lua_pushboolean(L, i);
-			break;
-		default: /* doesn't happen if xchat's C-API doesn't change ;-) */
-			lua_pushnil(L);
-			break;
-	}
-	return 1;
-}
-
-/*
- * lua:  xchat.set_context(ctx)
- * desc: Changes your current context to the one given. 
- * ret:  true or false 
- * args: 
- *       * ctx (number): the context (e.g. from xchat.get_context())
- */
-static int lxc_set_context(lua_State *L)
-{
-	double ctx = luaL_checknumber(L, 1);
-#ifdef DEBUG
-	fprintf(stderr, "set_context(): %#lx\n", (long)ctx);
-#endif
-	xchat_context *xc = (void *)(long)ctx;
-	lua_pushboolean(L, xchat_set_context(ph, xc));
-	return 1;
-}
-
-/*
- * lua:  xchat.nickcmp(name1, name2)
- * desc: Performs a nick name comparision, based on the current server 
- *       connection. This might be a RFC1459 compliant string compare, or 
- *       plain ascii (in the case of DALNet). Use this to compare channels 
- *       and nicknames. The function works the same way as strcasecmp. 
- * ret:  number ess than, equal to, or greater than zero if name1 is found, 
- *       respectively, to be less than, to match, or be greater than name2. 
- * args:
- *       * name1 (string): nick or channel name
- *       * name2 (string): nick or channel name
- */
-static int lxc_nickcmp(lua_State *L)
-{
-	const char *n1 = luaL_checkstring(L, 1);
-	const char *n2 = luaL_checkstring(L, 2);
-	lua_pushnumber(L, (double)xchat_nickcmp(ph, n1, n2));
-	return 1;
-}
-
-/* 
- * lua:  xchat.list_get(name)
- * desc: http://xchat.org/docs/plugin20.html#lists :)
- *       time_t values are stored as number => e.g.
- *         os.date("%Y-%m-%d, %H:%M:%S", time_t_value)
- *       pointers (channel -> context) as number... untested if this works
- * ret:  table with tables with all keys=Name, value=(Type)... or nil on error
- * args: 
- *       * name (string): the wanted list
- */
-static int lxc_list_get(lua_State *L)
-{
-	const char *name          = luaL_checkstring(L, 1); 
-	int i; /* item index */
-	int l; /* list index */
-	const char *str;
-	double      num;
-	time_t     date;
-	long        ptr;
-	const char *const *fields = xchat_list_fields(ph, name);
-	xchat_list *list          = xchat_list_get(ph, name);
-
-	if (!list) {
-		lua_pushnil(L);
-		return 1;
-	}
-	lua_newtable(L);
-	/* this is like the perl plugin does it ;-) */
-	l = 1;
-	while (xchat_list_next(ph, list)) {
-		i = 0;
-		lua_pushnumber(L, l);
-		lua_newtable(L);
-		while (fields[i] != NULL) {
-			switch (fields[i][0]) {
-				case 's':
-					str = xchat_list_str(ph, list, fields [i] + 1);
-					lua_pushstring(L, fields[i]+1);
-					if (str != NULL)
-						lua_pushstring(L, str);
-					else 
-						lua_pushnil(L);
-					lua_settable(L, -3);
-					break;
-				case 'p':
-					ptr = (long)xchat_list_str(ph, list, fields [i] + 1);
-					num = (double)ptr;
-					lua_pushstring(L, fields[i]+1);
-					lua_pushnumber(L, num);
-					lua_settable(L, -3);
-					break;
-				case 'i':
-					num = (double)xchat_list_int(ph, list, fields[i] + 1);
-					lua_pushstring(L, fields[i]+1);
-					lua_pushnumber(L, num);
-					lua_settable(L, -3);
-					break;
-				case 't':
-					date = xchat_list_time(ph, list, fields[i] + 1);
-					lua_pushstring(L, fields[i]+1);
-					lua_pushnumber(L, (double)date);
-					lua_settable(L, -3);
-					break;
-			}
-			i++;
-		}
-		lua_settable(L, -3);
-		l++;
-	}
-	xchat_list_free(ph, list);
-	return 1;
-}
-
-/*
- * lua:  xchat.list_fields(name)
- * desc: returns the possible keys for name as table
- * ret:  table ;->
- * args: 
- *       * name (string): name of the wanted list ("channels", "dcc", 
- *            "ignore", "notify", "users")
- */
-static int lxc_list_fields(lua_State *L)
-{
-	const char *name = luaL_checkstring(L, 1);
-	const char *const *fields = xchat_list_fields(ph, name);
-	int i;
-
-	lua_newtable(L);
-	i = 0;
-	while (fields[i] != NULL) {
-		 lua_pushnumber(L, i);
-		 /* first char is the type ... */
-		 lua_pushstring(L, fields[i]+1);
-		 lua_settable(L, -3);
-	}
-	return 1;
-}
-
-/*
- * lua:  xchat.gettext(str)
- * desc: 
- */
-static int lxc_gettext(lua_State *L)
-{
-#if defined(_WIN32) || defined(LXC_XCHAT_GETTEXT)
-	lua_pushstring(L, xchat_gettext(ph, luaL_checkstring(L, 1)));
-#else
-	const char *dom;
-	const char *msgid = luaL_checkstring(L, 1);
-	if (lua_type(L,2) == LUA_TSTRING)
-			dom = lua_tostring(L, 2);
-	else
-			dom = "xchat";
-	lua_pushstring(L, dgettext(dom, msgid));
-#endif
-	return 1;
-}
-
-/*
- * lua:  xchat.bits(flags)
- * desc: returns a table of booleans if the bit at index (err... index-1) is
- *       set
- * ret:  table of booleans
- * args: 
- *       * flags (number)
-  */
-static int lxc_bits(lua_State *L)
-{
-	int flags = luaL_checknumber(L, 1);
-	int i;
-	lua_pop(L, 1);
-	lua_newtable(L);
-	for (i=0; i<16; i++) { /* at time of writing, the highest index was 9 ... */
-		lua_pushnumber(L, i+1);
-		lua_pushboolean(L, ((1<<i) & flags) == 0 ? 0 : 1);
-		lua_settable(L, -3);
-	}
-	return 1;
-}
-/* 
- * vim: ts=3 noexpandtab
- */