JFlex - The Fast Scanner Generator for Java

JFlex is a lexical analyzer generator (also known as scanner generator) for Java(tm), written in Java(tm). It is also a rewrite of the very useful tool JLex which was developed by Elliot Berk at Princeton University. As Vern Paxson states for his C/C++ tool flex: They do not share any code though.

JFlex is designed to work together with the LALR parser generator CUP by Scott Hudson, and the Java modification of Berkeley Yacc BYacc/J by Bob Jamison. It can also be used together with other parser generators like ANTLR or as a standalone tool.

• ANTLR - ANother Tool for Language Recognition
• JavaCC - Java Compiler Compiler
• SableCC
• Chaperon - Converts Structured Text to XML
• SJPT - Simple Java Parsing Toolkit
• Grammatica: Parser Generator
• CUP - LALR Parser Generator in Java
• RunCC - A Java Runtime Compiler Compiler
• JTopas - Java tokenizer and parser tools
• Beaver