Lua Fundamentals Training Course

Introduction to Lua

• Historical background
• Objectives, key features, and design limitations
• Accessing official documentation and tutorials
• Installing the Lua interpreter
• Configuring and utilizing LuaRocks

Core syntax and semantics

• Variable naming conventions
• Single-line and multi-line comments
• Global scope and enforcing strict mode
• Local scope variables
• Writing standalone scripts and handling arguments
• Compilation units, chunks, expressions, and semicolon usage

Data types and structures

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

Table versatility

• Using tables as associative arrays
• Using tables as numeric sequences or lists

Control flow structures

• Conditional logic (if, then, elseif, else, end)
• While loops
• Repeat-until loops
• Basic for loops

Error management

• Differences between return values and exceptions
• Transforming return values into exceptions
• Transforming exceptions into return values
• Understanding error levels

Practical examples

• Evaluating polynomials
• Implementing breadth-first search
• Supplementary practice exercises

Advanced function concepts

• Named arguments
• Object-oriented invocation methods
• Closures
• Currying techniques
• Tail calls
• Multiple assignment and return values
• Variable arguments (varargs)

Iterators and co-routines

• The generic for loop
• Stateless vs. stateful iterator patterns
• Distinguishing between iterators and co-routines

Metatables and metamethods

• Implementing a set data structure
• The __tostring metamethod
• Arithmetic operation overloading
• The __index and __newindex metamethods
• The __len metamethod

Modules and packages

• Incorporating existing modules
• Creating custom modules
• Structuring modules into packages

Object-oriented programming

• Foundational OOP components in Lua
• Implementation examples

Advanced language features

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