multiline validation

crates/nu-parser/src/errors.rs

@@ -21,7 +21,7 @@ pub enum ParseError {
 
     #[error("Unexpected end of code.")]
     #[diagnostic(code(nu::parser::unexpected_eof), url(docsrs))]
-    UnexpectedEof(String, #[label("expected {0}")] Span),
+    UnexpectedEof(String, #[label("expected closing {0}")] Span),
 
     #[error("Unclosed delimiter.")]
     #[diagnostic(code(nu::parser::unclosed_delimiter), url(docsrs))]

crates/nu-parser/src/lex.rs

@@ -181,7 +181,13 @@ pub fn lex_item(
         // correct information from the non-lite parse.
         return (
             span,
-            Some(ParseError::UnexpectedEof((delim as char).to_string(), span)),
+            Some(ParseError::UnexpectedEof(
+                (delim as char).to_string(),
+                Span {
+                    start: span.end,
+                    end: span.end,
+                },
+            )),
         );
     }