Explain changed?

2021-04-28 07:14:17 -04:00
parent be8a2db283
commit e5724b7a1e
1 changed files with 5 additions and 0 deletions
@@ -42,6 +42,11 @@ will update the display."
                            ""))
                 (unless (eq line (getitem self.screen lineno))
                   (setitem self.screen lineno line)
+                   ;; `changed?` might have just been an explicit
+                   ;; boolean value, but Hissp would prefer that we
+                   ;; mutate values and not reassign variables.  Since
+                   ;; a `list` is an implicit boolean value, appending
+                   ;; (or not) to it works fine.
                   (.append changed? line)
                   ;; ^[[K to erase any characters that follow on this line
                   (.append output (.format "{}[K"