EnLang — The Universal Natural English Programming Language & Full-Stack Engine

Build Full-Stack Web Apps, Mobile UIs, Logic & 3D Visuals in Pure Natural English

Created and Authored by Spandan Prayas Patra.

🌟 Overview

EnLang is a deterministic, human-readable programming language and transpilation engine that converts natural English into clean, production-grade native code targets:

• .enlg ➔ Core Backend Logic & Algorithms (Python 3 / Bytecode VM)
• .enlgf ➔ Structural Frontend Web Markup (HTML5)
• .enlgd ➔ Responsive Design & Aesthetics (CSS3)
• .enlgs ➔ Client-Side Reactive Scripting & DOM Logic (Vanilla JavaScript ES6+)
• .enlgm ➔ Mobile Applications & Screens (Flutter / Dart)

🚀 Official Installation

Install EnLang globally on your system using pip:

pip install enlang

🛠️ CLI Command Reference

Once installed, use the enlang (or enlg) command anywhere in your terminal:

1️⃣ Execution & Live Dev Server

# Run any source file with auto-detection (.enlg, .enlgf, .enlgs, .enlgm, .html, .js, .py):
enlang run tournament_app/tournament.enlgf

# Run on a custom port:
enlang run index.enlgf -p 3000

2️⃣ Compilation & Production Build

enlang build page.enlgf     # Bundles HTML5, CSS3, and JS into page.html
enlang build style.enlgd    # Compiles to modern CSS3 (style.css)
enlang build script.enlgs   # Compiles to pure Vanilla JavaScript (script.js)
enlang build app.enlg       # Transpiles to clean Python (app.py)
enlang build app.enlgm      # Compiles to Flutter/Dart (app.dart)

3️⃣ Version & Package Management

# Check installed version and check PyPI for updates:
enlang check -v

# Update enlang to latest release:
enlang update -v latest

# Install a specific version co-existing alongside current version:
enlang install -v 1.0.0

# Replace current active installation with a specific version:
enlang replace -v 1.0.0

# List all co-existing installed versions:
enlang list -v

# Switch active default version:
enlang switch -v 1.0.0

4️⃣ Interactive REPL Shell

enlang repl

🎨 Sample Syntax

🔹 1. Markup (index.enlgf)

page:
    head:
        title "Vortex Esports"
    body:
        header class "main-navbar":
            h1 "VORTEX ESPORTS"
            button "LOG IN" id "btn-login"

🔹 2. Design (style.enlgd)

.main-navbar:
    background "rgba(15, 23, 42, 0.8)"
    backdrop-filter "blur(12px)"
    padding "16px 32px"
    display "flex"
    justify-content "space-between"

🔹 3. Client Scripting (app.enlgs)

in script:
    create score as 0

    when "btn-login" is clicked:
        put { user: "Kiryu", score: 50 } into userRecord
        add "Kiryu" to activePlayersList
        set text of "user-badge" to "Welcome, Kiryu!"
        add class "active" to "user-badge"
        after 3 seconds:
            hide element "welcome-banner"

📄 License

MIT License. Copyright (c) 2026 Spandan Prayas Patra.