feat(error_report): show proeminent marking on error location

notes.org

@@ -208,6 +208,8 @@ i will use rustyline, since it seems like the most feature-complete
 
 * DONE handle non-interactive input better
 
+* DONE show marking where error occurs
+
 * TODO cli tests using insta-cmd
 https://insta.rs/docs/cmd/
 

src/error_display.rs

@@ -12,7 +12,11 @@ impl OSDBError for CommandParseError {
         } else {
             Report::build(ReportKind::Error, (file, 0..input.len() - 1))
                 .with_message(self.message())
-                .with_label(Label::new((file, 0..input.len() - 1)).with_color(Color::Red))
+                .with_label(
+                    Label::new((file, 0..input.len() - 1))
+                        .with_color(Color::Red)
+                        .with_message(self.message()),
+                )
                 .finish()
                 .print((file, Source::from(input)))
                 .unwrap();
@@ -25,7 +29,11 @@ impl OSDBError for ScanError {
         let location = (file, Into::<std::ops::Range<usize>>::into(&self.location));
         Report::build(ReportKind::Error, location.clone())
             .with_message(format!("{self}"))
-            .with_label(Label::new(location).with_color(Color::Red))
+            .with_label(
+                Label::new(location)
+                    .with_color(Color::Red)
+                    .with_message(format!("{self}")),
+            )
             .finish()
             .print((file, Source::from(input)))
             .unwrap();