Lua Fundamentals Training Course

Introduction to Lua

• Historical overview
• Core objectives, features, and limitations
• Accessing Lua documentation and tutorial resources
• Installing the Lua interpreter
• Configuring and utilizing LuaRocks

Basic syntax and semantics

• Identifiers
• Inline and block comments
• Global variables and enforcing strict mode
• Local variables
• Standalone scripts and command-line arguments
• Compilation units, chunks, expressions, and semicolon usage

Data types and data structures

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

Introduction to tables and their versatility

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

Basic control structures

• if, then, elseif, else, end constructs
• while loops
• repeat loops
• Simple for loops

Error handling

• Comparing return values versus exceptions
• Transforming return values into exceptions
• Transforming exceptions into return values
• Understanding error levels

Example programs

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

More about functions

• Named arguments
• Object-oriented method calls
• Closures
• Currying
• Tail calls
• Multiple assignment and return values
• Variable arguments (Varargs)

Iterators and co-routines

• The generic for loop
• Stateless versus stateful iterators
• Key differences between iterators and co-routines

Metatables and metamethods

• The set example
• The __tostring metamethod
• Arithmetic metamethods
• The __index and __newindex metamethods
• The __len metamethod

Modules and packages

• Utilizing modules
• Creating custom modules
• Organizing modules into packages

Object-oriented programming

• Foundational elements of OOP in Lua
• Practical examples

Discussion on more advanced language features

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