Code to follow along Bob Nystrom's book Crafting Interpreters.
> cd build/
> java com.craftinginterpreters.lox.Lox
> print 3 + 1;
4
>
> cd build/
> java com.craftinginterpreters.lox.Lox ../script.lox
one
true
3
javac -d build com/craftinginterpreters/tool/GenerateAst.java
cd build/
java com.craftinginterpreters.tool.GenerateAst \
../com/craftinginterpreters/lox/