Show parse output in main

src/main.rs

 use elastic::lexer;
+use elastic::parser;
 
 use std::env;
 
     let args: Vec<String> = env::args().into_iter().skip(1).collect();
     let input = args.join(" ");
     let tokens = lexer::scan(&input)?;
-    for token in tokens {
-        println!("{}", token);
-    }
+    let select = parser::parse(tokens)?;
+    dbg!(select);
     Ok(())
 }