antlr4-experiments

References

• https://gist.github.com/sharwell/4979017 - complete pom for antlr4 maven plugin
• antlr4.listener, antlr4.visitor properties control creation of listener/visitor classes
• http://stackoverflow.com/questions/15324837/how-do-i-get-help-on-the-antlr4-maven-plugin/
• mvn antlr4:help -Ddetail=true