m5rcode

m5rcode (pronounced "em-five-er-code") is a modern programming language combining the best features of Python, C, Java, HolyC, Rust, and Ruby. It features gradual typing, hybrid memory management (GC + optional ownership), and a focus on developer productivity.

✨ What's New in v0.3.2

Critical Bug Fixes

• Fixed else if statements - Now properly handles multi-branch conditionals
• Fixed string comparisons - Added ==, !=, <, >, <=, >= operators for strings

New Features

• Environment Variables: env.get(), env.set(), env.has()
• File System: fs.read(), fs.write(), fs.exists(), fs.delete()
• Enhanced Strings: str.contains(), str.starts_with(), str.ends_with(), str.replace()
• Enhanced Lists: list.append(), list.contains()
• Discord Bot Framework: Complete rewrite with 20+ working API functions

See CHANGELOG_v0.3.2.md for full details.

✨ What's New in v0.3.0

• Comprehensive Standard Library: 20+ built-in functions for math, strings, lists, and I/O
• Enhanced LSP: Semantic analysis, better diagnostics, context-aware completions
• Native Functions: Faster execution for built-in operations
• Type Introspection: typeof(), toStr(), toInt(), toFloat(), toBool()
• Better Error Messages: Runtime errors with line/column tracking

Features

• Gradual Typing: Optional static types with Hindley-Milner inference
• Hybrid Memory Model: GC by default, ownership mode available
• Modern Syntax: Clean, expressive syntax inspired by multiple paradigms
• Fast Compilation: Rust-based compiler with LLVM backend
• Rich Tooling: REPL, IDE, formatter, linter, LSP server
• Native Performance: Compiles to native code via C or LLVM IR

Installation

From AUR (Arch Linux)

yay -S m5rcode
# or
paru -S m5rcode

From Source (Arch Linux)

./scripts/bootstrap.sh
./scripts/build_arch.sh --install

Manual Build

cargo build --release
sudo cp m5rcode /usr/local/bin/
sudo cp target/release/m5r* /usr/local/bin/

Quick Start

# hello.m5
import std.io

fn main() {
    io.println("Hello, m5rcode!")
}

Run with:

m5rcode run hello.m5

Or start the REPL:

m5rcode repl

Tools

• m5rcode - Unified CLI (run, repl, compile, fmt, lint, ide)
• m5r - Compiler
• m5repl - Interactive REPL
• m5idle - GTK-based IDE
• m5fmt - Code formatter
• m5lint - Linter
• m5pkg - Package manager
• m5doc - Documentation generator

Documentation

• Tutorial - 20-minute introduction
• API Reference - Standard library documentation
• Examples - Code examples
• Language Specification - Complete language spec

License

This project is dual-licensed under MIT OR Apache-2.0. See LICENSE file.

Contributing

See CONTRIBUTING.md for guidelines.

Security

Report security issues to security@m5rcode.org. See SECURITY.md.