all: grammars 


antlr4.jar:
	wget https://www.antlr.org/download/antlr-4.10.1-complete.jar
	mv antlr-4.10.1-complete.jar antlr4.jar
	python3 -m pip install antlr4-python3-runtime

.PHONY: grammars
grammars: grammars/__init__.py
grammars/__init__.py: O.g4 antlr4.jar
	java -cp antlr4.jar org.antlr.v4.Tool -Dlanguage=Python3 $< -no-listener -visitor -o grammars
	touch grammars/__init__.py

.PHONEY: clean
clean:
	rm -rf grammars
	rm -f antlr4.jar