Meilleur contrôle de l'exécution du programme

La commande en cours d'écriture n'est pas envoyée au parser si EOF est
envoyé

src/main.rs

@@ -5,9 +5,10 @@ mod parser;
 
 fn main() {
     let mut buffer = String::new();
-    let mut result_bytes_read: io::Result<usize> = Ok(1);
+    let mut result_bytes_read: io::Result<usize>;
+    let mut bytes_read: usize = 1;
 
-    while result_bytes_read.unwrap() != 0 {
+    while bytes_read != 0 {
         buffer.clear();
 
         print!("$ ");
@@ -16,12 +17,15 @@ fn main() {
         }
         result_bytes_read = io::stdin().read_line(&mut buffer);
 
-        if !result_bytes_read.is_err() {
-            let command_vec: Vec<String> = parser::parse(&buffer);
-            println!("{:?}", command_vec);
-        } else {
+        if result_bytes_read.is_err() {
             eprintln!("error: invalid UTF-8 characters were read");
-            result_bytes_read = Ok(1);
+            bytes_read = 1;
+        } else {
+            bytes_read = result_bytes_read.unwrap();
+            if bytes_read != 0 {
+                let command_vec: Vec<String> = parser::parse(&buffer);
+                println!("{:?}", command_vec);
+            }
         }
     }
 }