9. Compiler Design Lab solution | implement a recursive descent parser.

In this video we implement a Recursive Descent Parser in C for a simple arithmetic expression language.
We use a non-left-recursive grammar and build a hand-written top-down parser with tokenization, parsing functions, and error handling — perfect for compiler design labs and exams.

What you’ll learn:

Why left-recursion must be removed for recursive descent.

Writing a simple scanner (tokenizer) for identifiers, numbers, operators, and parentheses.

Implementing parsing functions: E(), Eprime(), T(), Tprime(), F() that return success/failure.

Building parse-tree / performing semantic action (optional: evaluate expression).

Error detection and recovery basics for lab-level implementations.

Test cases and how to present results in exams.

Видео 9. Compiler Design Lab solution | implement a recursive descent parser. канала Ahsan Ullah