when clearing, careful of cursor being after right-most column

diff --git a/terminal.coffee b/terminal.coffee
index 19296bf..913d874 100644 (file)
--- a/terminal.coffee
+++ b/terminal.coffee
@@ -169,7 +169,12 @@ class Terminal
                                        @text[@y][i] = ' '
                                        @attributes[@y][i] = @a
                        when '1' # erase to left
-                               for i in [0..@x]
+                               # @x can equal @width (after printing to right-most column)
+                               if @x < @width
+                                       max = @x
+                               else
+                                       max = @width - 1
+                               for i in [0..max]
                                        @text[@y][i] = ' '
                                        @attributes[@y][i] = @a
                        when '2' # erase whole line