Lua Fundamentals Training Course

Introduction to Lua

• Historical background
• Objectives, key features, and design limitations
• Access to official documentation and tutorials
• Installation of the Lua interpreter
• Setup and utilization of LuaRocks

Core syntax and semantics

• Identifier conventions
• Single-line and block comments
• Global variables and enforcing strictness
• Local variable scope
• Standalone program structure and argument handling
• Compilation units, chunks, expressions, and semicolon usage

Data types and data structures

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

Tables: Introduction and versatility

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

Basic control structures

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

Error handling

• Return values versus exception models
• Transforming return values into exceptions
• Transforming exceptions into return values
• Managing error levels

Practical program examples

• Polynomial evaluation
• Breadth-first search implementation
• Supplementary practice exercises

Advanced function concepts

• Named arguments
• Object-oriented invocation patterns
• Closures
• Currying techniques
• Tail call optimization
• Multiple assignment and return values
• Variable-length argument lists (Varargs)

Iterators and coroutines

• Generic for loop mechanisms
• Stateless versus stateful iterator designs
• Distinguishing between iterators and coroutines

Metatables and metamethods

• Implementing sets as a practical example
• The __tostring metamethod
• Arithmetic operation metamethods
• The __index and __newindex metamethods
• The __len metamethod

Modules and packages

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

Object-oriented programming

• Core OOP building blocks in Lua
• Practical implementation examples

Advanced language features

• Weak table references
• Object finalizers
• Compilation, evaluation, and dynamic loading