antlr4-demo-python3

Running ANTLR4 on the grammar file

You only need to do this if you change the grammar file Demo.g4.

Only once, get the JAR for antlr:

curl -o antlr-4.13.1-complete.jar https://www.antlr.org/download/antlr-4.13.1-complete.jar

To run it:

java -jar antlr-4.13.1-complete.jar -Werror -no-listener -visitor -Dlanguage=Python3 -o demo Demo.g4

This is also provided in the shell script antlr4.sh

Python setup

poetry install
poetry shell