diff options
Diffstat (limited to 'plugins/lua/lua.c')
| -rw-r--r-- | plugins/lua/lua.c | 1882 |
1 files changed, 1882 insertions, 0 deletions
diff --git a/plugins/lua/lua.c b/plugins/lua/lua.c new file mode 100644 index 00000000..9574fd4d --- /dev/null +++ b/plugins/lua/lua.c @@ -0,0 +1,1882 @@ +/* + * 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 + */ |