Re: Creating nested tables from C into Lua..

["Kenk" <kenk@...>]

Thanks! That did the trick. I'll have to remember to use lua2.c when I need 
to see how thing's are setup in C when given a senario in script, very 
handy. From that I just created a few simple helper methods to build a 
return table.

StartMainTable(), StartSubTable(), 
PushVal(Index),PushVal(Value),EndSubTable(),EndMainTable().

That works nicely for now and helps me understand how the stack is built 
more too!

----- Original Message ----- 
From: "Luiz Henrique de Figueiredo" <lhf@tecgraf.puc-rio.br>
To: "Lua list" <lua@bazar2.conectiva.com.br>
Sent: Sunday, October 11, 2009 7:35 AM
Subject: Re: Creating nested tables from C into Lua..


> > { {name="Scooby",age=45,
> > type="Dog",someusertype=<userdata>},{name="Shaggy",age=24,
> > type="Human",someusertype=<userdata>}}
>
> My lua2c, which is for Lua 4, still works on this piece of code and 
> generates
> correct C code for Lua 5.1:
>
> /* This C code was generated by lua2c from the Lua code below.
>
> return { {name="Scooby",age=45,
> type="Dog",someusertype="userdata"},{name="Shaggy",age=24,
> type="Human",someusertype="userdata"}}
>
> */
> static int MAIN(lua_State *L)
> {
> lua_newtable(L);
> lua_newtable(L);
> lua_pushliteral(L,"name");
> lua_pushliteral(L,"Scooby");
> lua_pushliteral(L,"age");
> lua_pushnumber(L,45);
> lua_pushliteral(L,"type");
> lua_pushliteral(L,"Dog");
> lua_pushliteral(L,"someusertype");
> lua_pushliteral(L,"userdata");
> lua_settable(L,-9);
> lua_settable(L,-7);
> lua_settable(L,-5);
> lua_settable(L,-3);
> lua_newtable(L);
> lua_pushliteral(L,"name");
> lua_pushliteral(L,"Shaggy");
> lua_pushliteral(L,"age");
> lua_pushnumber(L,24);
> lua_pushliteral(L,"type");
> lua_pushliteral(L,"Human");
> lua_pushliteral(L,"someusertype");
> lua_pushliteral(L,"userdata");
> lua_settable(L,-9);
> lua_settable(L,-7);
> lua_settable(L,-5);
> lua_settable(L,-3);
> lua_rawseti(L,-3,2);
> lua_rawseti(L,-2,1);
> return 1;
> return 0;
> }