🧠 Comparative Programming Language Projects

*By İlke Kaş — Bilkent University, CS315

This repository presents four distinct projects exploring core programming language concepts—including Boolean logic, iteration mechanisms, subprograms, and domain-specific language design—across multiple languages and paradigms.

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1️⃣ Boolean_Operators

Purpose
To compare the behavior of Boolean logic operators across six programming languages: C, Go, Python, PHP, JavaScript, and Rust.

Functionalities

• Evaluates logical operations (AND, OR, NOT)
• Analyzes short-circuiting, operator precedence, and associativity
• Tests side effects and truthy/falsy evaluations
• Includes user-defined functions and output statements

Aims

• Understand how logic evaluation differs between statically and dynamically typed languages
• Compare strict typing (e.g., Go) versus coercion-based logic (e.g., JavaScript, PHP)

Report
📄 Kas_ilke_report.pdf

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2️⃣ Iteration_Statements

Purpose
To investigate how loop constructs and iteration patterns are implemented and behave across multiple languages.

Functionalities

• Uses for, while, do-while, foreach, and enhanced loops (for-in)
• Iterates over common data structures: arrays, strings, dictionaries, sets
• Demonstrates both index-based and iterator-based traversal
• Uses iter() and next() where applicable

Aims

• Compare imperative loop syntax and semantics across languages
• Understand built-in versus manual iterator models

Report
📄 Kas_Ilke.pdf

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3️⃣ Kotlin_Subprograms

Purpose
To explore subprogram structure, parameter passing, and scope behavior in Kotlin.

Functionalities

• Implements deeply nested functions to demonstrate static scoping
• Tests default and keyword arguments
• Demonstrates closures using lambdas
• Explores both primitive and reference-type parameter behavior

Aims

• Understand variable lifetime, shadowing, and scope chains
• Learn how Kotlin supports higher-order functions and closures

Report
📄 kas_ilke_report.pdf

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4️⃣ Adventure_Language_Design

Purpose
To design a domain-specific language (DSL) for adventure games and implement a lexical analyzer using Lex.

Functionalities

• Custom language includes method blocks, variable declarations, conditionals, loops, and I/O
• Sample adventure game scripts provided (exampleProgram1.txt, exampleProgram2.txt)
• Lexical analyzer (codeAD.l) detects keywords, identifiers, numbers, and custom syntax
• Runs on Lex/Yacc compatible compiler

Aims

• Practice token definition and language syntax creation
• Gain experience with compiler front-end development

Report
📄 CS315Report_Team19.pdf

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