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/* --------------------------------------------------------------------------
* Copyright 2003-2011 (inclusive) Nathan Angelacos
* (nangel@users.sourceforge.net)
*
* This file is part of haserl.
*
* Haserl is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2,
* as published by the Free Software Foundation.
*
* Haserl 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 haserl. If not, see <http://www.gnu.org/licenses/>.
*
* ------------------------------------------------------------------------ */
#if HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <lua.h>
#include <lauxlib.h>
#include <lualib.h>
#include "common.h"
#include "h_lua_common.h"
#ifdef INCLUDE_LUASHELL
#include "h_lua.h"
#endif
#ifdef INCLUDE_LUACSHELL
#include "h_luac.h"
#endif
#include "h_error.h"
/* this is not a mistake. We are including the
* definition of the lualib here
*/
#include "haserl_lualib.inc"
lua_State *lua_vm = NULL;
void
lua_common_putenv (char *str)
{
char *value;
value = memchr (str, '=', strlen (str));
if (value)
{
*value = (char) '\0';
value++;
}
else
{
value = str + strlen (str);
}
lua_getglobal (lua_vm, "haserl");
lua_pushstring (lua_vm, "myputenv");
lua_gettable (lua_vm, -2);
lua_pushstring (lua_vm, str);
lua_pushstring (lua_vm, value);
lua_call (lua_vm, 2, 0);
return;
}
void
lua_common_setup (char *shell, list_t * env)
{
/* create a lua instance */
lua_vm = luaL_newstate ();
luaL_openlibs (lua_vm);
/* and load our haserl library */
if (luaL_loadbuffer
(lua_vm, (const char *) &haserl_lualib, sizeof (haserl_lualib),
"luascript.lua") || lua_pcall (lua_vm, 0, 0, 0))
{
die_with_message (NULL, NULL,
"Error passing the lua library to the lua vm: %s",
lua_tostring (lua_vm, -1));
}
/* and put the vars in the vm */
while (env)
{
lua_common_putenv (env->buf);
env = env->next;
}
/* register our open function in the haserl table */
lua_getglobal (lua_vm, "haserl");
lua_pushstring (lua_vm, "loadfile");
#if defined(INCLUDE_LUASHELL) && defined(INCLUDE_LUACSHELL)
lua_pushcfunction (lua_vm,
shell[3] == 'c' ? h_luac_loadfile : h_lua_loadfile);
#elif defined(INCLUDE_LUASHELL)
lua_pushcfunction (lua_vm, h_lua_loadfile);
#else /* INCLUDE_LUACSHELL */
lua_pushcfunction (lua_vm, h_luac_loadfile);
#endif
lua_settable (lua_vm, -3);
}
void
lua_common_destroy (void)
{
/* close the lua instance */
lua_close (lua_vm);
}
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