Re: c function returning table

[erik@... (Erik Hougaard)]

// Get Files and return a table with all files names
void GetFiles(lua_State *lua_state)
{
  WIN32_FIND_DATA   FindData;
  HANDLE            FindHandle;
  lua_Object        tempTable;
  int               i = 1;

  tempTable = lua_createtable(lua_state);
  FindHandle = FindFirstFile(luaL_check_string(lua_state,1),&FindData);
  if (FindHandle != INVALID_HANDLE_VALUE)
    do
    {
      if (FindData.dwFileAttributes & (FILE_ATTRIBUTE_DIRECTORY |
                                        FILE_ATTRIBUTE_SYSTEM |
                                        FILE_ATTRIBUTE_HIDDEN) )
      {
        // What do we do with directories etc..
      }
      else
      {
        // Add filename to table
        lua_pushobject(lua_state,tempTable);
        lua_pushnumber(lua_state,i);
        i++;
        lua_pushstring(lua_state,FindData.cFileName);
        lua_settable(lua_state);
      }
    } while(FindNextFile(FindHandle,&FindData));
  FindClose(FindHandle);
  lua_pushobject(lua_state,tempTable);
}

Here is a small example of a function that will do what you need (Win32)

/Erik

----- Original Message -----
From: "John Passaniti" <jmp@pt.com>
To: "Multiple recipients of list" <lua-l@tecgraf.puc-rio.br>
Sent: Thursday, June 22, 2000 4:26 PM
Subject: c function returning table


>
> Can someone point me to an example of a C function that returns a table?
I
> have the need to read a directory and place the filenames in a table.
> While I could decompose this with wrappers for opendir(), readdir(), and
> closedir(), I would rather just return everything in a single table in one
> shot.
>
>