Iterating over tables
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- Subject: Iterating over tables
- From: "Chris Cranford" <crancran@...>
- Date: 2007年12月19日 08:24:05 -0500
I am presently trying to take a LUA table which is saved in a file and
load it and iterate over each of the nested tables and print out the
key/value pairs. What I am having trouble understanding is how to
properly extract the key/value pairs.
Below is my code:
// start code
lua_State *L = luaL_newstate();
luaL_openlibs(L);
luaL_dofile(L, "savedtable.lua");
lua_getglobal(L,"test");
if(!lua_istable(L,-1)) {
printf("Unable to load LUA file, it isn't a table"); } else {
lua_pushnil(L);
while(lua_next(L,-2) != 0) {
lua_pop(L,1);
}
}
lua_close(L);
// end code
What I have is a sample file "savedtable.lua" which contains the following data:
test = {
["admin"] = {
["preferences"] = {
{
{
"Some text value here",
nil,
1,
4,
[0] = "28517",
},
{
"another text string",
nil,
1,
3,
[0] = "29242",
},
},
},
},
}
How would I go about reading this table?
Is it better to use the lua API inside C/C++ or would it be easier for
me to write a simple LUA script that I load and execute from the C/C++
framework and the LUA script itself loads the table file and parses
it?
Any help is greatly appreciated.
Chris