Programming Language Interpreter || C Code Projects for School students

 Reference: CCP_L01_E04_New Programming Language

Introduction

Programming languages power the digital world, but have you ever thought about creating your own? In this blog, we’ll explore how to build a basic programming language interpreter in C. This beginner-friendly project helps students (aged 8-16 years) learn C programming fundamentals, file handling, and program execution.

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🛠 Project Overview

This project involves:
 ✅ Reading a script file (script.txt) containing simple commands.
 ✅ Processing variable assignments and print statements.
 ✅ Storing variables and retrieving values.
 ✅ Handling syntax errors gracefully.

🔹 Example Script File (script.txt):

x = 100;

y = 50;

print x;

print y;

 

🔹 Expected Output:

x = 100

y = 50

 

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🚀 Features & Enhancements

🔹 File Handling: Reads and executes commands from an external file.
 🔹 Variable Storage: Saves values in memory for later retrieval.
 🔹 Error Handling: Detects undefined variables & syntax mistakes.
 🔹 Scalability: Can be extended with arithmetic operations, loops, and conditionals.

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📜 C Code Implementation

The program reads commands from script.txt and executes them. Here’s a glimpse of the code:

void executeLine(char *line) {

    if (sscanf(line, "print %s", arg1) == 1) {

        int index = getVariableIndex(arg1);

        if (index != -1) printf("%s = %d\\n", arg1, variables[index].value);

        else printf("Error: Undefined variable %s\\n", arg1);

    } else if (sscanf(line, "%s = %d", arg1, &value) == 2) {

        setVariable(arg1, value);

    } else {

        printf("Syntax Error: %s\\n", line);

    }

}

 

📌 Download Full Code & More C Projects Below In the eBook link! 👇

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📌 How to Use in Code::Blocks IDE

1️⃣ Create a new C file → Paste the C code.
 2️⃣ Create script.txt → Add example commands.
 3️⃣ Compile & Run → Type the script filename (script.txt).
 4️⃣ View Output in the terminal.

✅ You’re now running your own programming language! 🎉

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📣 Final Thoughts

Building a simple interpreter in C is a fun and rewarding way to learn programming concepts. Try expanding it with math operations, loops, and user-defined functions.

🔗 Have ideas for improvements? Drop a comment below! 🚀

📌 Download Full Code & More C Projects Below In the eBook link! 👇

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Brief About “C Code Projects for Beginner Students (Ages 8-16)" eBook

Are you a school student aged 8 to 16 with a budding interest in programming, or perhaps looking for a hands-on way to master C language for your academic projects? Look no further! I am thrilled to announce the launch of "C Code Projects for Beginner Students," your ultimate guide to practical C programming.

 

Ready to start your coding adventure?

[Click below any links to get your copy of "C Code Projects for Beginner Students (Ages 8-16)"!]

 

eBook CCP_L01 Link:

https://play.google.com/store/books/details?id=KS54EQAAQBAJ  [Google Play Store]

https://books.google.co.in/books?id=KS54EQAAQBAJ   [Google Books]

 

Enjoy this eBook CCP_L01 on ‘C Code Projects for Beginner Students’ series and do not forget to explore other resources related to this series eBook. Thanks for visiting my blog.

 

EBOOK CCP_L01 promotion Blog Link:

https://myspacemywork2024.blogspot.com/2025/08/unlock-world-of-code-introducing-c-code.html

 

Happy Reading!

…till next post, bye-bye & take care!