Lua Fundamentals Training Course

Introduction to Lua

• A brief history
• Lua's objectives, capabilities, and design constraints
• Accessing Lua documentation and tutorial resources
• Installation of the Lua interpreter
• Configuration and usage of LuaRocks

Basic syntax and semantics

• Identifier usage
• Single and block comments
• Global variables and strictness enforcement
• Local variable scope
• Standalone programs and handling program arguments
• Compilation units, code chunks, expressions, and semicolon placement

Data types and data structures

• Primitive types: nil, boolean, number, and string
• Object types: functions, userdata, threads, and tables
• Distinguishing between references/objects and basic values
• The central role of tables in Lua

Introduction to tables and their versatility

• Utilizing tables as associative arrays
• Implementing tables as numeric arrays and sequences

Basic control structures

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

Error handling

• Comparing return values and exceptions
• Transforming return values into exceptions
• Catching exceptions and converting them to return values
• Managing error levels

Example programs

• Implementing polynomial evaluation
• Executing breadth-first search
• Supplementary practical exercises

Advanced function concepts

• Using named arguments
• Object-oriented method calls
• Working with closures
• Applying currying
• Tail calls
• Multiple assignment and return statements
• Variable-length arguments (varargs)

Iterators and co-routines

• The generic for loop mechanism
• Comparing stateless and stateful iterators
• Key differences between iterators and co-routines

Metatables and metamethods

• Practical examples using sets
• The __tostring metamethod
• Arithmetic metamethods
• The __index and __newindex metamethods
• The __len metamethod

Modules and packages

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

Object-oriented programming

• Core components of OOP in Lua
• Practical implementation examples

Discussion on more advanced language features

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