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/*
Copyright (C) 1999 by Brandon Ehle <azverkan@yahoo.com>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
extern "C" {
#include <lua.h>
#include <lualib.h>
//#include <luadebug.h>
}
#include "cssysdef.h"
#include "cssys/sysfunc.h"
#include "cslua.h"
#include "csutil/csstring.h"
#include "iutil/objreg.h"
#include "ivaria/reporter.h"
CS_IMPLEMENT_PLUGIN
SCF_IMPLEMENT_IBASE(csLua)
SCF_IMPLEMENTS_INTERFACE(iScript)
SCF_IMPLEMENTS_EMBEDDED_INTERFACE(iComponent)
SCF_IMPLEMENT_IBASE_END
SCF_IMPLEMENT_EMBEDDED_IBASE (csLua::eiComponent)
SCF_IMPLEMENTS_INTERFACE (iComponent)
SCF_IMPLEMENT_EMBEDDED_IBASE_END
SCF_IMPLEMENT_FACTORY(csLua)
SCF_EXPORT_CLASS_TABLE(cslua)
SCF_EXPORT_CLASS(csLua, "crystalspace.script.lua",
"Crystal Space Script Lua")
SCF_EXPORT_CLASS_TABLE_END
csLua* csLua::shared_instance = NULL;
csLua::csLua(iBase *iParent) :object_reg(NULL), Mode(CS_REPORTER_SEVERITY_NOTIFY),
lua_state(NULL)
{
SCF_CONSTRUCT_IBASE(iParent);
SCF_CONSTRUCT_EMBEDDED_IBASE(scfiComponent);
shared_instance = this;
}
#define LUA_STATE() ((lua_State*)lua_state)
csLua::~csLua()
{
Mode=CS_REPORTER_SEVERITY_BUG;
lua_close(LUA_STATE());
lua_state=NULL;
object_reg=NULL;
}
extern "C" {
int cspace_initialize(lua_State *L);
}
extern int iObjectRegistry_tag;
bool csLua::Initialize(iObjectRegistry* object_reg)
{
csLua::object_reg=object_reg;
lua_state = lua_open(0); //Stacksize is 0, is there a better value?
//Userinit start
lua_baselibopen(LUA_STATE());
lua_iolibopen(LUA_STATE());
lua_strlibopen(LUA_STATE());
lua_mathlibopen(LUA_STATE());
lua_dblibopen(LUA_STATE());
//Userinit end
cspace_initialize(LUA_STATE());
Mode=CS_REPORTER_SEVERITY_NOTIFY;
// Store the object_reg ptr.
Store("object_reg", object_reg, &iObjectRegistry_tag);
return true;
}
void csLua::ShowError()
{
//Write me
}
bool csLua::RunText(const char* Text)
{
int top = lua_gettop(LUA_STATE());
int res = lua_dostring(LUA_STATE(), Text); /* dostring | dofile */
lua_settop(LUA_STATE(), top); /* remove eventual results */
if (res == LUA_ERRMEM) {
Print(1, "lua: memory allocation error");
return 0;
} else if (res == LUA_ERRERR) {
Print(1, "lua: error in error message");
return 0;
}
return 1;
}
bool csLua::Store(const char* name, void* data, void* tag)
{
lua_pushusertag(LUA_STATE(), data, *(int*)tag);
lua_setglobal(LUA_STATE(), name);
return 0;
}
bool csLua::LoadModule(const char* name)
{
csString s;
s << "dofile('" << name << "')";
return RunText(s);
}
void csLua::Print(bool Error, const char *msg)
{
iReporter* rep = CS_QUERY_REGISTRY (object_reg, iReporter);
if (!rep)
csPrintf ("%s\n", msg);
else
{
if(Error)
rep->Report (CS_REPORTER_SEVERITY_ERROR, "crystalspace.script.lua",
"CrystalScript Error: %s", msg);
else
rep->Report (Mode, "crystalspace.script.lua",
"%s", msg);
rep->DecRef ();
}
}
//extern "C" {
//extern void swig_lua_init(lua_State *L) {
////BNE We are already initialized by this time so this is a no-op
//}
//}
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