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Lua and Lists
Author
Hi,
I''ve found out that the lua-table is the list of choice
Does anyone know a way to convert in C a std::list to a table?
thanx
I''ve found out that the lua-table is the list of choice
Does anyone know a way to convert in C a std::list to a table?
thanx
What you need to do is iterate through the list and push the key and value onto the table. Indexes start at 1 in lua, so something like this should work (pseudocode wise):
lua_State *L
lua_newtable(L);
int i = 1;
for(somelist it=begin; it!=end; ++it)
lua_pushnumber(i); // Push index of element
lua_pushstring(it); // Or whatever datatype you want to push
lua_settable(L, -3); // Set the key/value pair to the table located three positions down from the top of the stack.
lua_State *L
lua_newtable(L);
int i = 1;
for(somelist it=begin; it!=end; ++it)
lua_pushnumber(i); // Push index of element
lua_pushstring(it); // Or whatever datatype you want to push
lua_settable(L, -3); // Set the key/value pair to the table located three positions down from the top of the stack.
If you use Luabind it''s easy.
Say you have a class A with a list member.
Then just compile this code:
Then your Lua code could look like this:
Now t contains all the values of names.
Say you have a class A with a list member.
class A { list<string> values;};Then just compile this code:
lua_State* L = lua_open();luabind::open(L);module(L)[ class_<A>("A") .def(constructor<>()) .def_readwrite("values",&A:values,return_stl_iterator)];Then your Lua code could look like this:
local obj = A()local t = {}for v in obj.values do table.insert(t,v)endNow t contains all the values of names.
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