/*

* luaa.h - Lua configuration management header

*

* Copyright © 2008-2009 Julien Danjou <julien@danjou.info>

*

* This program is free software; you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation; either version 3 of the License, or

* (at your option) any later version.

*

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with this program. If not, see <http://www.gnu.org/licenses/>.

*

*/

#ifndef AWESOME_LUA_H

#define AWESOME_LUA_H

#include <ev.h>

#include <lua.h>

#include <lauxlib.h>

#include <basedir.h>

#include "draw.h"

#include "common/lualib.h"

#define luaA_deprecate(L, repl) \

do { \

luaA_warn(L, "%s: This function is deprecated and will be removed, see %s", \

__FUNCTION__, repl); \

lua_pushlstring(L, __FUNCTION__, sizeof(__FUNCTION__)); \

signal_object_emit(L, &global_signals, "debug::deprecation", 1); \

} while(0)

static inline bool

luaA_checkboolean(lua_State *L, int n)

{

if(!lua_isboolean(L, n))

luaL_typerror(L, n, "boolean");

return lua_toboolean(L, n);

}

static inline lua_Number

luaA_getopt_number(lua_State *L, int idx, const char *name, lua_Number def)

{

lua_getfield(L, idx, name);

if (lua_isnil(L, -1) || lua_isnumber(L, -1))

def = luaL_optnumber(L, -1, def);

lua_pop(L, 1);

return def;

}

/** Print a warning about some Lua code.

* This is less mean than luaL_error() which setjmp via lua_error() and kills

* everything. This only warn, it's up to you to then do what's should be done.

* \param L The Lua VM state.

* \param fmt The warning message.

*/

static inline void __attribute__ ((format(printf, 2, 3)))

luaA_warn(lua_State *L, const char *fmt, ...)

{

va_list ap;

luaL_where(L, 1);

fprintf(stderr, "%sW: ", lua_tostring(L, -1));

lua_pop(L, 1);

va_start(ap, fmt);

vfprintf(stderr, fmt, ap);

va_end(ap);

fprintf(stderr, "\n");

}

void luaA_init(xdgHandle *);

bool luaA_parserc(xdgHandle *, const char *, bool);

/** Global signals */

signal_array_t global_signals;

/** Our main Lua state */

lua_State *_G_L;

#endif

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