{"id":49539169,"url":"https://github.com/shubhojit-mitra-dev/c-to-java-transpiler","last_synced_at":"2026-05-02T13:35:58.791Z","repository":{"id":333751860,"uuid":"1138560916","full_name":"shubhojit-mitra-dev/c-to-java-transpiler","owner":"shubhojit-mitra-dev","description":"A C language to Java Code transpiler. This is just a simple project for deeper understanding of applied compiler design and building a basic one with C++. 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* / %`\n* Relational: `\u003c \u003e \u003c= \u003e= == !=`\n* Parenthesized expressions\n\n### I/O\n\n* `printf`\n  → mapped to `System.out.print` / `System.out.println` in Java\n\n### Program Structure\n\n* A single `main` function\n* No user-defined functions\n\n---\n\n## ❌ Unsupported Features (Explicitly Out of Scope)\n\nThe following C features are **not supported**:\n\n* Input (`scanf`)\n* Pointers\n* Arrays\n* Structs / unions\n* Header files (`#include`)\n* Macros / preprocessor directives\n* Dynamic memory (`malloc`, `free`)\n* Function definitions (other than `main`)\n* Function pointers\n\nThese limitations are **intentional** to keep the compiler focused and manageable.\n\n---\n\n## 🧪 Test Program (FizzBuzz)\n\nThe following C program is used as the primary test case:\n\n```c\nint main() {\n    int n = 20;\n    int i;\n\n    for (i = 1; i \u003c= n; i = i + 1) {\n        if (i % 15 == 0) {\n            printf(\"FizzBuzz\\n\");\n        } else if (i % 3 == 0) {\n            printf(\"Fizz\\n\");\n        } else if (i % 5 == 0) {\n            printf(\"Buzz\\n\");\n        } else {\n            printf(\"Number\\n\");\n        }\n    }\n\n    return 0;\n}\n```\n\nThe generated Java code preserves:\n\n* Control flow\n* Arithmetic logic\n* Output behavior\n\n---\n\n## 🛠️ Implementation Language\n\n* **C++**\n* No external parser generators (e.g., Lex/Yacc)\n* All compiler stages implemented manually for learning purposes\n\n---\n\n## 📂 Project Structure (Planned)\n\n```\nc-to-java-transpiler/\n│\n├── lexer/          # Token definitions and tokenizer\n├── parser/         # Grammar parsing and AST construction\n├── ast/            # AST node definitions\n├── semantic/       # C → Java semantic mapping\n├── codegen/        # Java code generation\n├── tests/          # Sample C input programs\n├── output/         # Generated Java files\n└── README.md\n```\n\n---\n\n## 🎓 Learning Outcomes\n\nBy completing this project, you will gain hands-on experience with:\n\n* Writing a lexer and parser from scratch\n* Designing and traversing an AST\n* Understanding semantic differences between C and Java\n* Building a real compiler pipeline\n* Applying theoretical compiler design concepts practically\n\n---\n\n## 🚀 Future Extensions (Optional)\n\n* Support for arrays\n* Basic function support\n* Symbol table with type checking\n* Error reporting and recovery\n* LLVM IR or bytecode backend\n\n---\n\n## 📜 Disclaimer\n\nThis project is **educational** and intentionally limited in scope.\nIt is not intended to replace real-world compilers or transpilers.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fshubhojit-mitra-dev%2Fc-to-java-transpiler","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fshubhojit-mitra-dev%2Fc-to-java-transpiler","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fshubhojit-mitra-dev%2Fc-to-java-transpiler/lists"}