parser : match plus lisible pour parse_backslash

src/parser.rs

@@ -17,11 +17,10 @@ fn parse_quote(characters: &mut Vec<char>) -> String {
 }
 
 fn parse_backslash(characters: &mut Vec<char>) -> Option<char> {
-    let mut escaped_char: Option<char> = None;
-
-    if !characters.is_empty() {
-        escaped_char = Some(characters.pop().unwrap());
-    }
+    let escaped_char = match characters.is_empty() {
+        false => Some(characters.pop().unwrap()),
+        true => None,
+    };
 
     escaped_char
 }