An Application for Visual Representation of Deterministic Finite Automaton Generated by JFlex

Abstract

JFlex is a well-known lexical analyzer generator for Java. It is widely used both for university coursers and in software developing practice. However, there is a lack of appropriate tools for efficient inspection of Java code generated by using JFlex. We provide a tool which visually represents Deterministic Finite Automaton (DFA) generated by using JFlex. The tool represents DFA as a graph and shows process of analysis of user provided input text by the DFA. It is very useful for students who attend Compilers university course as well as for skilled professionals in this area.