fs = require('fs');
parse = require('parse');

function debugExpr(expr)
{
    const tokens = new lex.TokenStream(expr);
    console.log(tokens.getPrettyTokenList()); //mapKey("type", v => TokenType.keyName(v)));

    const { ast, error } = parse.attemptExpression(tokens);
    if (error) throw error;

    console.format(parse.getPrettyAST(ast)); //ast.mapKey("node", v => ASTNode.keyName(v)));
}

debugExpr(fs.readFileSync(process.argv[2], "utf8"));