Lua Fundamentals Training Course

Overview of Lua

• Historical background
• Design goals, features, and intentional exclusions
• Key documentation and tutorial resources
• Installation of the Lua interpreter
• Configuration and usage of LuaRocks

Foundational Syntax and Semantics

• Identifier conventions
• Comments and block commenting
• Global variables and strictness enforcement
• Local variable scope
• Standalone scripts and command-line arguments
• Compilation units, chunks, expressions, and semicolons

Data Types and Structures

• Primitive types: nil, boolean, number, string
• Object types: function, userdata, thread, table
• Reference semantics vs. value types
• The central role of tables in Lua

Exploring Tables and Their Flexibility

• Tables as associative arrays
• Tables as numeric sequences and arrays

Essential Control Flow

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

Managing Errors

• Return values vs. exception handling
• Converting return values into exceptions
• Converting exceptions into return values
• Error level management

Practical Examples

• Polynomial evaluation algorithms
• Breadth-first search implementation
• Supplementary practice problems

Advanced Functionality

• Named argument handling
• Object-oriented method calls
• Working with closures
• Function currying
• Tail call optimization
• Multiple assignment and return values
• Variable arguments (varargs)

Iterators and Co-routines

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

Metatables and Metamethods

• Implementing sets as a case study
• The __tostring metamethod
• Arithmetic metamethods
• __index and __newindex hooks
• The __len metamethod

Modular Design and Packages

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

Object-Oriented Programming

• Core OOP building blocks in Lua
• Implementation examples

Advanced Language Features

• Weak reference tables
• Finalizer implementation
• Runtime compilation, evaluation, and loading