🌟 The Zeta Language

Zeta is a programming language that emphasizes readability with English-like syntax while supporting fundamental programming constructs.

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🚀 Features

🔹 1. Data Types

• Numbers: Integers (e.g., 2, 3) and decimals (e.g., 3.14, 10.5). The lexer differentiates between integer and decimal tokens.
• Strings & Characters: Enclosed in curly braces {} (e.g., {Hello, World!}). Differentiation is based on length.

🔹 2. Scope

• Local & Global Variables: Defined using local or global keywords.

  local x is 5
  global y is 2.5
  

🔹 3. I/O Operations

• Input: ask x → Requests user input.
• Output: tell {Hello World} → Prints a message.

🔹 4. Operators

Supports basic arithmetic operations:

• + (Addition)
• - (Subtraction)
• * (Multiplication)
• / (Division)
• ^ (Exponentiation)
• % (Modulus)

🔹 5. Expressions

• Variables can be initialized or updated with expressions:

  x is 2 * 3 + 6
  x is now y + 2 / 52
  

🔹 6. Declaration & Assignment

• Assignment: is keyword
• Update: now keyword

  x is 5
  x is now 20
  

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📌 Sample Zeta Program

<< This is a sample Zeta program
   that calculates the area of a circle >>

global pi is 3.14
local radius is 0

< This line asks the user to input value of radius >
ask radius

area is 2 * pi * radius

< This line outputs the circle's area >
tell {Area of circle is} area

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⚡ Zeta Compiler Toolkit

The Zeta Compiler Toolkit is a Java-based compiler frontend that includes lexical analysis, symbol table management, and regular expression processing using NFA/DFA automata.

✨ Features

🔹 Lexical Analysis

• Tokenization with priority-based matching
• Supports numbers (integers/decimals), strings, comments, operators
• Handles whitespace and nested comments

🔹 Symbol Table

• Scope-aware variable tracking (global/local)
• Constant flagging and value updates

🔹 Regular Expression Engine

• Regex-to-NFA conversion
• NFA-to-DFA subset construction
• Basic pattern matching

🔹 Automata Implementation

• State transition system
• ε-closure calculations
• Transition table visualization

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🛠 Installation

Prerequisites

• Java JDK 17+
• Maven 3.8+

Build

mvn clean package

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🚀 Happy Coding with Zeta! ✨