RRRR Language Interpreter (TypeScript)

This project is a TypeScript/Node.js implementation of the RRRR language interpreter.
It supports basic variables, conditional statements, input/output, and includes a feature where integer input of 1 outputs YES, otherwise NO.

Features

• Variable declaration and input

RR RRRRR myVar RRRR RRRR

• Declares a variable myVar of integer type

• Input of 1 prints YES, otherwise prints NO

• Variable output

RRR RR myVar

• String output

RRR RR "Hello World"

• IF conditions

RRRRR RRRR RRRR "myVar" "1"
RRR RR "It's one!"
RRRRR RRRRRR

• Decimal Type support using DecimalWrapper

Installation

Use git

• 1. Install Node.js (v18+ recommended)
• 2. Clone the repository
• 3. Install dependencies

Use npm

• 1. Install Node.js (v18+ recommended)
• 2. On your terminal, write npm install rrrrlang

Usage

• 1. Create a .RRRR file, for example test.RRRR

RR RRRRR myVar RRRR RRRR
RRR RR myVar

• 2. Run the interpreter:

npx ts-node Utils/Runner.ts test.RRRR

File Structure

Rlang/
├── Utils/
│ ├── parseLine.ts
│ ├── Runner.ts
│ └── DecimalWrapper.ts
├── Types/
│ ├── variables.ts
│ └── maps.ts
├── Tests/
│ └── test.RRRR
└── README.md

Notes

• The interpreter supports integer, string, and decimal types.
• IF conditions can compare variables or literals using ==, !=, <, >, <=, >=.
• All inputs are read from the console in Node.js.