work

src/io/mod.rs

@@ -79,7 +79,6 @@ impl Span {
                 found = false;
             }
         }
-        let start_chars = text[self.start..].lines().next().unwrap().len();
         let underline = "\x1b[4:3m";
         let underline_color = "\x1b[58;5;1m";
         let end = "\x1b[0m";