Lua Fundamentals Training Course

Introduction to Lua

• Historical background
• Lua's objectives, features, and limitations
• Accessing Lua documentation and tutorials
• Installing the Lua interpreter
• Setting up and utilizing LuaRocks

Basic syntax and semantics

• Identifiers
• Comments and block comments
• Global variables and enforcing strict mode
• Local variables
• Standalone programs and command-line arguments
• Compilation units, chunks, expressions, and semicolons

Data types and data structures

• Basic 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

Introduction to tables and their versatility

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

Basic control structures

• The if then elseif else end structure
• The while loop
• The repeat loop
• The simple for loop

Error handling

• Differences between return values and exceptions
• Converting a return value into an exception
• Converting an exception into a return value
• Error levels

Example programs

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

Deeper dive into functions

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

Iterators and coroutines

• The generic for loop
• Stateless versus stateful iterators
• Key differences between iterators and coroutines

Metatables and metamethods

• Implementing sets using metatables
• The __tostring metamethod
• Arithmetic metamethods
• The __index and __newindex metamethods
• The __len metamethod

Modules and packages

• Using modules
• Creating custom modules
• Organizing modules into packages

Object-oriented programming

• Core building blocks of OOP in Lua
• Practical examples

Discussion on advanced language features

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