README.md

ANTLR talk

This project contains a small ANTLR showcase and and a talk introducing ANTLR.

Content

Java showcase

The Java 8 grammar from https://github.com/antlr/grammars-v4/blob/master/java8/Java8.g4 is used as an example.

• MethodsExtrationExample extract method names from Java sources using the listener and visitor patterns and XPath
• LoCCounter ANTLR solution to the LoC Code Kata (see http://codekata.com/kata/kata13-counting-code-lines/)

Calc showcase

• ListeningCalculator showcases the listener pattern
• VisitingCalculator showcases the visitor pattern
• TreeWalkingCalculator showcases tree walking
• NumberDumper showcases XPath on the AST

Talk

You can find the accompanying talk (German) in the talk folder.

Build

Build with Gradle

./gradlew clean install

Build with Maven

This project uses the Maven wrapper from https://github.com/takari/maven-wrapper. Alternatively you can use your own Maven installation.

./mvnw io.takari:maven:wrapper -Dmaven=3.5.0 
./mvnw clean install

Acknowledgements

Parts of this work are based on https://github.com/nielsutrecht/antlr-pres by Niels Dommerholt and are used under the MIT license 3rdparty-licenses/MIT-LICENSE