Lua Fundamentals Training Course

Introduction to Lua

• A brief historical background
• Objectives, key features, and design constraints
• Accessing Lua documentation and learning resources
• Installation of the Lua interpreter
• Configuration and usage of LuaRocks

Basic syntax and semantics

• Variable naming conventions
• Inline and block comments
• Global variables and strict mode enforcement
• Local variable scope
• Standalone execution and handling program arguments
• Compilation units, chunks, expressions, and statement terminators

Data types and data structures

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

Introduction to tables and their versatility

• Using tables as associative arrays (hash maps)
• Using tables as numeric arrays or sequences

Basic control structures

• Conditional logic with if, then, elseif, else, end
• The while loop
• The repeat-until loop
• The numeric for loop

Error handling

• Distinguishing between return values and exceptions
• Converting return values into exceptions
• Converting exceptions into return values
• Managing error levels

Example programs

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

Advanced function concepts

• Passing named arguments
• Object-oriented method calls
• Understanding closures
• The concept of currying
• Tail call optimization
• Multiple assignment and multiple return values
• Variable-length argument lists (varargs)

Iterators and co-routines

• The generic for loop
• Comparing stateless and stateful iterators
• Distinguishing between iterators and co-routines

Metatables and metamethods

• Implementing a set data structure
• The __tostring metamethod
• Overriding arithmetic operations
• The __index and __newindex metamethods
• The __len metamethod

Modules and packages

• Importing and using existing modules
• Creating custom modules
• Structuring modules into packages

Object-oriented programming

• Core OOP principles in Lua
• Practical examples

Discussion on more advanced language features

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