#!/bin/bash

url="http://repo1.maven.org/maven2/org/antlr/antlr4/4.5.3/antlr4-4.5.3.jar"
jar="$(basename $url)"

if [[ ! -r "$jar" ]]
then
    wget "$url"
fi

exec java -cp "$jar" org.antlr.v4.Tool "$@"