Lua Fundamentals Training Course

Getting Started with Lua

• Brief historical context
• Lua's design goals, key features, and limitations
• Accessing official documentation and tutorials
• Installing the Lua interpreter
• Configuring and utilizing LuaRocks

Core Syntax and Semantics

• Identifiers
• Single-line and block comments
• Global variables and strict mode enforcement
• Local variables
• Standalone scripts and handling program arguments
• Compilation units, chunks, expressions, and semicolons

Data Types and Structures

• Primitive types: nil, boolean, number, string
• Reference types: function, userdata, thread, table
• Distinguishing between references/objects and basic values
• The central role of tables in Lua

Exploring Table Versatility

• Using tables as associative arrays
• Using tables as numeric arrays and sequences

Foundational Control Structures

• Conditional logic with if, then, elseif, else, end
• While loops
• Repeat loops
• Simple for loops

Error Management

• Comparing return values with exceptions
• Converting return values into exceptions
• Converting exceptions into return values
• Understanding error levels

Practical Programming Examples

• Evaluating polynomials
• Breadth-first search algorithms
• Supplementary exercises

Advanced Function Concepts

• Named arguments
• Object-oriented function calls
• Closures
• Currying
• Tail calls
• Multiple assignment and return values
• Variable-length argument lists (varargs)

Iterators and Coroutines

• The generic for loop
• Stateless versus stateful iterators
• Distinguishing between iterators and coroutines

Metatables and Metamethods

• Implementing sets as an example
• The __tostring metamethod
• Arithmetic metamethods
• The __index and __newindex metamethods
• The __len metamethod

Modules and Packages

• Utilizing existing modules
• Building custom modules
• Structuring modules into packages

Object-Oriented Programming

• Core building blocks of OOP in Lua
• Practical examples

Advanced Language Features

• Weak tables
• Finalizers
• Compilation, evaluation, and loading