Interactive web application that performs lexical analysis of Pascal source code by identifying and classifying tokens.
Description
Pascal Lexical Analyzer is an educational web application designed to simulate the lexical analysis phase of a compiler. The platform processes Pascal source code, identifies valid lexical elements, classifies each token, and reports invalid sequences according to the language's lexical rules.
My Role
As the developer of this project, I designed and implemented the lexical analysis engine and the interactive user interface, focusing on accurately recognizing Pascal tokens while providing a clear visualization of the analysis results.
- Developed the lexical analyzer responsible for scanning and classifying Pascal source code.
- Implemented token recognition for reserved keywords, identifiers, operators, literals, delimiters, and symbols.
- Designed a responsive interface for writing, analyzing, and displaying source code.
- Implemented lexical error detection for invalid or malformed tokens.
- Organized the output into a structured and easy-to-read token table.
Key Features
- Real-time lexical analysis of Pascal source code.
- Automatic token classification.
- Recognition of reserved words, identifiers, literals, operators, and delimiters.
- Lexical error detection and reporting.
- Interactive interface for testing different source code examples.
- Clear visualization of the generated token stream.
Impact
The project demonstrates the fundamental concepts of compiler construction by providing an interactive environment for understanding lexical analysis. It simplifies the learning process for compiler design while allowing users to visualize how source code is transformed into tokens before the parsing stage.
Project flow
