GR=my_grammar
RUN=tokens -tokens
IN=first-errors.log

ANTLR4=antlr4
GRUN4=java org.antlr.v4.gui.TestRig

all: $(GR).class
	$(GRUN4) $(GR) $(RUN) $(IN)

$(GR).class: $(GR).g4
	$(ANTLR4) $(GR).g4
	javac $(GR)*.java

clean:
	rm -f *.class