🐱 Cat Programming Language

Cat is a general-purpose programming language that combines:

• ✅ Python/Java-like syntax
• ✅ C-level performance
• ✅ Cross-platform
• ✅ Smart optimization per task

Quick Start

# Build the compiler
make

# Run a Cat program
./catc run examples/hello.cat

# Compile to executable
./catc compile examples/hello.cat -o hello
./hello

# Tokenize (debug)
./catc lex examples/hello.cat

# Parse (debug)
./catc parse examples/hello.cat

Examples

// Hello World
say "Hello, World!"

// Variables
name is "Cat"
age is 5

// Functions
add(a, b) = a + b

// Classes
class Person {
    name: string
}

See examples/ for more:

• hello.cat — Hello World
• fib.cat — Fibonacci
• guess_game.cat — Number guessing game

Architecture

Source (.cat) → Lexer → Tokens → Parser → AST → Sema → CodeGen → C → GCC → Executable

Project Structure

cat-it/
├── include/     # Header files
├── src/         # Compiler source
├── lib/         # Standard library
├── examples/    # Example programs
└── tests/       # Test suite

Status

MVP in development. Current features:

• Lexer (tokens, keywords, strings, numbers)
• Parser (expressions, statements, classes, enums, interfaces)
• Semantic analysis (symbol table, scope)
• Code generation (Cat → C transpiler)
• Runtime library
• CLI (compile, run, lex, parse)
• Full standard library
• Package manager
• LSP support

License

© 2024 Cat Programming Language