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CLILib is a Kotlin library for creating command line interfaces (CLI) in a modular, extensible and interactive way. Designed to speed up the development of command-based tools, the library offers:

• Built-in commands ready to use (e.g. cd, ls, print, help, exit, etc.)
• Scripting support and the ability to run multiple commands on a single line
• A variable system with registration and direct manipulation
• Dynamic registration and execution of custom commands
• Argument validation, expression parsing and file handling

The library aims to make it easy to quickly prototype functional CLIs while providing a solid and extensible base for more complex projects.

✨ Main features

• ✅ Interactive prompt with command interpretation
• 🧠 Arithmetic expression parsing (e.g. expr a + b * (2 - c))
• 📂 Commands with directory, file and script support
• 🧩 Dynamic command registration (CmdRegister)
• 🔧 Global variable system (VarRegister)
• 📜 Ability to run .ppc scripts
• 🧪 Testable with runSingleCmd, runFromFile or runtimeCLI

📎 Script example

var a 10 | var b 20 | expr b - a | var c | print $c

🚀 Quick start

fun main() {
    val app = App()
    app.registerDefaultCommands()
    app.runtimeCLI()
}