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hexchat/plugins/lua/lua.c
Dan Mashal b04377825f fix incorrect FSF address
2012-12-23 11:36:54 -08:00

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/*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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 <errno.h>
#include <ctype.h>
#include <glib.h>
#ifdef _WIN32
#include <direct.h> /* for getcwd */
#include "../../src/dirent/dirent-win32.h"
#include "../../src/common/typedef.h"
#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 "hexchat-plugin.h"
static hexchat_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;
hexchat_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;
hexchat_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", HEXCHAT_EAT_NONE},
{"EAT_XCHAT", HEXCHAT_EAT_HEXCHAT},
{"EAT_PLUGIN", HEXCHAT_EAT_PLUGIN},
{"EAT_ALL", HEXCHAT_EAT_ALL},
/* unused until hook_fd is done
{"FD_READ", HEXCHAT_FD_READ},
{"FD_WRITE", HEXCHAT_FD_WRITE},
{"FD_EXCEPTION", HEXCHAT_FD_EXCEPTION},
{"FD_NOTSOCKET", HEXCHAT_FD_NOTSOCKET},
*/
{"PRI_HIGHEST", HEXCHAT_PRI_HIGHEST},
{"PRI_HIGH", HEXCHAT_PRI_HIGH},
{"PRI_NORM", HEXCHAT_PRI_NORM},
{"PRI_LOW", HEXCHAT_PRI_LOW},
{"PRI_LOWEST", HEXCHAT_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) {
hexchat_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)) {
hexchat_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;
/* hexchat_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) {
hexchat_printf(ph, "lxc_autoload_from_path(): malloc failed: %s",
strerror(errno));
break;
}
sprintf(file, "%s" G_DIR_SEPARATOR_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)) {
hexchat_printf(ph, "Lua plugin: error while unloading script %s",
lua_tostring(L, -1));
lua_pop(L, 1);
}
}
if (state->gui)
hexchat_plugingui_remove(ph, state->gui);
state->gui = NULL;
hooks = state->hooks;
while (hooks) {
h = hooks;
hooks = hooks->next;
cb = hexchat_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 HEXCHAT_EAT_NONE;
buf = malloc(PATH_MAX + 1);
if (!buf) {
hexchat_printf(ph, "malloc() failed: %s\n", strerror(errno));
return HEXCHAT_EAT_NONE;
}
st = malloc(sizeof(struct stat));
if (!st) {
hexchat_printf(ph, "malloc() failed: %s\n", strerror(errno));
free(buf);
return HEXCHAT_EAT_NONE;
}
len = strlen(word[2]);
if (len > 4 && strcasecmp (".lua", word[2] + len - 4) == 0) {
if (strrchr(word[2], G_DIR_SEPARATOR) != NULL)
strncpy(file, word[2], PATH_MAX);
else
{
if (stat(word[2], st) == 0)
{
xdir = getcwd (buf, PATH_MAX);
snprintf (file, PATH_MAX, "%s" G_DIR_SEPARATOR_S "%s", xdir, word[2]);
}
else
{
xdir = hexchat_get_info (ph, "configdir");
snprintf (file, PATH_MAX, "%s" G_DIR_SEPARATOR_S "addons" G_DIR_SEPARATOR_S "%s", xdir, word[2]);
}
}
if (lxc_load_file((const char *)file) == 0) {
free(st);
free(buf);
return HEXCHAT_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)) {
hexchat_printf(ph, "Lua plugin: error registering script %s",
lua_tostring(L, -1));
lua_pop(L, 1);
free(st);
free(buf);
return HEXCHAT_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 = hexchat_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)) {
hexchat_printf(ph,
"Lua plugin: error calling xchat_init() %s",
lua_tostring(L, -1));
lua_pop(L, 1);
}
}
free(st);
free(buf);
return HEXCHAT_EAT_ALL;
}
state = state->next;
}
}
free(st);
free(buf);
return HEXCHAT_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 HEXCHAT_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;
hexchat_printf(ph, "Lua script %s unloaded", file);
free(state);
return HEXCHAT_EAT_ALL;
}
prev = state;
state = state->next;
}
}
return HEXCHAT_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') {
hexchat_printf(ph, "LUA: Usage: /LUA LUA_CODE... execute LUA_CODE");
return HEXCHAT_EAT_ALL;
}
if (luaL_loadbuffer(L, word_eol[2], strlen(word_eol[2]), "/LUA")) {
hexchat_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)) {
hexchat_printf(ph, "LUA: error executing line %s", lua_tostring(L, -1));
lua_pop(L, 1);
}
lua_close(L);
return HEXCHAT_EAT_ALL;
}
int hexchat_plugin_init(hexchat_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;
char *xsubdir;
/* 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;
hexchat_hook_command(ph, "LOAD", HEXCHAT_PRI_NORM, lxc_cb_load, NULL, NULL);
hexchat_hook_command(ph, "UNLOAD", HEXCHAT_PRI_NORM, lxc_cb_unload, NULL, NULL);
hexchat_hook_command(ph, "LUA", HEXCHAT_PRI_NORM, lxc_cb_lua, "Usage: LUA <code>, executes <code> in a new lua state", NULL);
xdir = hexchat_get_info (ph, "configdir");
xsubdir = g_build_filename (xdir, "addons", NULL);
lxc_autoload_from_path (xsubdir);
g_free (xsubdir);
/* put this here, otherwise it's only displayed when a script is autoloaded upon start */
hexchat_printf(ph, "Lua interface loaded");
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)) {
hexchat_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 = hexchat_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)) {
hexchat_printf(ph, "Lua plugin: error calling xchat_init() %s",
lua_tostring(L, -1));
lua_pop(L, 1);
}
}
state = state->next;
}
return 1;
}
int hexchat_plugin_deinit(hexchat_plugin *plug_handle)
{
struct lxc_States *state, *st;
state = lxc_states;
while (state) {
lxc_unload_script(state);
hexchat_printf(ph, "Lua script %s unloaded", state->file);
st = state;
state = state->next;
free(st);
}
hexchat_printf(plug_handle, "Lua interface unloaded");
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)) {
hexchat_printf(ph, "failed to call callback for '%s': %s",
word[1], lua_tostring(L, -1)
);
lua_pop(L, 1);
return HEXCHAT_EAT_NONE;
}
if (lua_type(L, -1) != LUA_TNUMBER) {
hexchat_printf(ph, "callback for '%s' did not return number...", word[1]);
return HEXCHAT_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) {
hexchat_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)
{
hexchat_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) {
hexchat_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 = HEXCHAT_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) {
hexchat_printf(ph, "lxc_hook_command(): failed to malloc: %s",
strerror(errno));
lua_pushboolean(L, 0);
return 1;
}
hook = hexchat_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)) {
hexchat_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) {
hexchat_printf(ph, "callback for '%s' didn't return number...", word[1]);
return HEXCHAT_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#hexchat_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)
{
hexchat_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 = HEXCHAT_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) {
hexchat_printf(ph, "lxc_hook_print(): failed to malloc: %s",
strerror(errno));
lua_pushboolean(L, 0);
return 1;
}
hook = hexchat_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)
{
hexchat_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) {
hexchat_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 = HEXCHAT_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) {
hexchat_printf(ph, "lxc_hook_server(): failed to malloc: %s",
strerror(errno));
lua_pushboolean(L, 0);
return 1;
}
hook = hexchat_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)
{
hexchat_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 = hexchat_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, hexchat_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 = hexchat_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;
hexchat_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)) {
hexchat_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) {
hexchat_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 = hexchat_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);
hexchat_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);
hexchat_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 = hexchat_emit_print(ph, event, NULL);
break;
case 1:
i = hexchat_emit_print(ph, event, text[0], NULL);
break;
case 2:
i = hexchat_emit_print(ph, event, text[0], text[1], NULL);
break;
case 3:
i = hexchat_emit_print(ph, event, text[0], text[1], text[2], NULL);
break;
case 4:
i = hexchat_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);
hexchat_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;
hexchat_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 = hexchat_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 hexchat_set_context.
* ret: context number ... DON'T modifiy
* args: none
*/
static int lxc_get_context(lua_State *L)
{
long ptr;
hexchat_context *ctx = hexchat_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 = hexchat_get_info(ph, id);
if (value == NULL)
lua_pushnil(L);
else
lua_pushstring(L, value);
return 1;
}
/*
* lua: hexchat.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 (hexchat_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
hexchat_context *xc = (void *)(long)ctx;
lua_pushboolean(L, hexchat_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)hexchat_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 = hexchat_list_fields(ph, name);
hexchat_list *list = hexchat_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 (hexchat_list_next(ph, list)) {
i = 0;
lua_pushnumber(L, l);
lua_newtable(L);
while (fields[i] != NULL) {
switch (fields[i][0]) {
case 's':
str = hexchat_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)hexchat_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)hexchat_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 = hexchat_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++;
}
hexchat_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 = hexchat_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, hexchat_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
*/
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