eplang 7.5.1

EPL - English Programming Language: write code in plain English. Build apps, web servers, and more.

🌐 EPL — English Programming Language

Write code the way you think. In plain English.

EPL is a fully-featured, production-ready programming language where every keyword is natural English. Build web apps, APIs, Android apps, desktop tools, AI pipelines — all in a syntax anyone can read.

pip install eplang

---

✨ What does EPL look like?

Note: Hello World
Say "Hello, World!"

Note: Variables
name = "Abneesh"
age = 20

Note: Conditionals
If age is greater than 18 then
    Say "Welcome, " + name
Otherwise
    Say "Access denied"
End

Note: Functions
Function greet takes person
    Return "Hello, " + person + "!"
End

Say greet("World")

Note: Loops
Repeat 5 times
    Say "EPL is awesome!"
End

Note: Lists
fruits = ["apple", "banana", "mango"]
For Each fruit in fruits
    Say fruit
End

Note: Web Server
Create WebApp called app

Route "/" shows
    Page "Welcome"
        Heading "Welcome to EPL"
        Text "This page is served by the native EPL web runtime."
    End
End

Route "/api/health" responds with
    Send json Map with status = "ok"
End

No semicolons. No curly braces. No cryptic symbols. Just English.

---

🚀 Quick Start

Install

pip install eplang

Run your first program

echo 'Say "Hello from EPL!"' > hello.epl
epl hello.epl

Start the interactive REPL

epl repl

Create a full project

epl new myapp --template web
epl new authapp --template auth
epl new botapp --template chatbot
epl new studio --template frontend
cd myapp
epl serve

Production serving

pip install "eplang[server]"

EPL supports production WSGI and ASGI deployment through generated adapters and the epl serve runtime surface.

• WSGI: Waitress and Gunicorn
• ASGI: Uvicorn and Hypercorn
• Adapter generation: WSGI / ASGI deploy entrypoints for external servers such as Daphne or other ASGI hosts

For multi-worker ASGI deployment, use the generated deploy/asgi.py entrypoint with your server's import-string form rather than an in-process app object launch.

---

🆚 EPL vs Other Languages

Feature	EPL	Python	JavaScript	Java
Syntax readability	⭐⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐	⭐⭐
Learning curve	Minutes	Days	Days	Weeks
Web framework built-in	✅	❌	❌	❌
Android transpiler	✅	❌	❌	✅
WASM compilation	✅	❌	✅	❌
Native compiler (LLVM)	✅	❌	❌	✅
Package manager	✅	pip	npm	Maven
LSP / IDE support	✅	✅	✅	✅
AI assistant built-in	✅	❌	❌	❌

---

🏗️ What Can You Build?

🌐 Web Applications

Create WebApp called apiApp

Route "/api/users" responds with
    users = ["Alice", "Bob"]
    Send json Map with users = users and count = length(users)
End

🤖 AI & Machine Learning

Import "epl.ai" As ai

messages = [Map with role = "user" and content = "Explain quantum computing simply"]
response = ai.chat(messages)
Say response

🗄️ Database Apps

Import "epl-db"

db = open("myapp.db")
create_table(db, "users", Map with name = "TEXT" and email = "TEXT")
insert(db, "users", Map with name = "Ada" and email = "[e-mail]")
Say query(db, "SELECT * FROM users")

📱 Android Apps (Kotlin transpile)

epl android myapp/main.epl   # Generates full Android Studio project

🍎 iOS Apps (SwiftUI project generation)

epl ios myapp/main.epl       # Generates Xcode / SwiftUI project

🖥️ Desktop Apps

epl desktop myapp/main.epl   # Generates Compose Multiplatform desktop app

⚡ Native Executables

epl build myapp/main.epl     # Compiles via LLVM to native .exe / binary

---

📦 CLI Reference

epl run <file.epl>        # Run a program
epl repl                  # Interactive REPL
epl new <name>            # Create new project
epl build <file.epl>      # Compile to native executable
epl wasm <file.epl>       # Compile to WebAssembly
epl serve <file.epl>      # Start web server
epl test [dir]            # Run test suite
epl check [file]          # Static type checking
epl fmt <file>            # Format source code
epl lint [file]           # Lint source code
epl android <file.epl>    # Generate Android project
epl ios <file.epl>        # Generate iOS project
epl desktop <file.epl>    # Generate desktop app
epl install <package>     # Install a package
epl upgrade               # Update EPL

---

🔋 Feature Highlights

Category	Features
Language	OOP, async/await, generics, pattern matching, lambdas, generators
Performance	Bytecode VM, LLVM native compiler, constant folding, dead code elimination
Web	HTTP router, WebSocket, WSGI/ASGI, middleware, sessions, templates
Database	SQLite ORM, Redis, PostgreSQL, Store/Fetch/Delete English APIs
Security	Safe FFI sandbox, pickle allowlist, recursion limits, scope depth limits
Tooling	LSP server, debugger, REPL, test framework, code coverage, formatter
Targets	Interpreter, VM, LLVM native, JavaScript, Node.js, Kotlin, Python, WASM, MicroPython
Packaging	SemVer package manager, lockfiles, checksums, PyPI integration
AI	Built-in ai module, Web Playground AST-Aware Copilot, Dual "Thinking" Mode via Groq/Gemini
Standard Library	300+ functions across HTTP, DB, Math, Crypto, File I/O, JSON, Regex, Date

---

📚 Documentation

Resource	Link
Official Book (PDF)	docs/epl_book.pdf
Language Reference	docs/language-reference.md
Getting Started	docs/getting-started.md
Architecture	docs/architecture.md
Package Manager	docs/package-manager.md
Tutorials	docs/tutorials.md
Changelog	CHANGELOG.md

---

🛠️ VS Code Extension

Install the EPL extension for:

• ✅ Syntax highlighting for .epl files
• ✅ Real-time diagnostics (type errors, unused variables)
• ✅ Auto-completions and hover docs
• ✅ Run files with Ctrl+Shift+R
• ✅ Type check with Ctrl+Shift+K

Install: Search EPL in VS Code Extensions, or visit the Marketplace.

---

🤝 Contributing

Contributions are welcome! See CONTRIBUTING.md for guidelines.

git clone https://github.com/abneeshsingh21/EPL.git
cd EPL
pip install -e ".[dev]"
python -m pytest tests/

See CONTRIBUTORS.md for the list of contributors.

---

🗺️ Roadmap

• Core language (interpreter + VM + LLVM)
• Web framework, ORM, async I/O
• Package manager with lockfiles
• LSP server, debugger, REPL
• Android & Desktop transpilers
• PyPI release (pip install eplang)
• VS Code extension
• Official documentation website
• Online playground (try EPL in browser with AST-Aware AI Copilot)
• Community package registry
• iOS transpiler
• EPL Notebook (Jupyter-style)

---

📄 License

Copyright © 2024–2026 Abneesh Singh ([e-mail])

Licensed under the MIT License with attribution requirements. See LICENSE for details.

"EPL" and "English Programming Language" are trademarks of Abneesh Singh.

---

⭐ Star this repo if EPL excites you!

Made with ❤️ by Abneesh Singh