small refactor and remove newline character

Author: erkkikeranen

src/repl.rs

@@ -36,14 +36,13 @@ impl Repl {
         loop {
             print!("{}=> ",self.environment.get_current_namespace_name());
             let _ = io::stdout().flush();
-            let mut next = Value::Nil;
 
-            // a scope for stdin to be released for providing input for function
-            {
+            let next = {
                 let mut stdin_reader = stdin.lock();
                 // Read
-                next = Repl::read(&mut stdin_reader);
-            }
+                Repl::read(&mut stdin_reader)
+                // Release stdin.lock
+            };
 
             // Eval
             let evaled_next = self.eval(&next);

src/rust_core/read_line.rs

@@ -22,11 +22,13 @@ impl IFn for ReadLineFn {
         if args.len() != 0 {
             return error_message::wrong_arg_count(0, args.len())
         }
-        
         let mut input = String::new();
         io::stdout().flush();
         match io::stdin().read_line(&mut input) {
-            Ok(_) => Value::String(input),
+            Ok(_) => {
+                input.pop();
+                Value::String(input)
+            },
             Err(error) => error_message::generic_err(Box::try_from(error).unwrap())
         }
     }