5 The Application Program Interface

This section describes the API for Lua, that is, the set of C functions available to the host program to communicate with the library. The API functions can be classified in the following categories:

1. executing Lua code;
2. converting values between C and Lua;
3. manipulating (reading and writing) Lua objects;
4. calling Lua functions;
5. C functions to be called by Lua;
6. references to Lua Objects.

• 5.1 Executing Lua Code
• 5.2 Converting Values between C and Lua
• 5.3 Manipulating Lua Objects
• 5.4 Calling Lua Functions
• 5.5 C Functions
• 5.6 References to Lua Objects