fix cursor in wrong column on multiline input

thomasballinger · thomasballinger · commit 2f6470553413 · 2013-12-19T14:26:21.000-05:00
--HG--
branch : scroll-frontend
diff --git a/bpython/curtsiesfrontend/repl.py b/bpython/curtsiesfrontend/repl.py
@@ -669,13 +669,13 @@ def paint(self, about_to_exit=False):
                                        # extra character for space for the cursor
         cursor_row = current_line_start_row + len(lines) - 1
         if self.stdin.has_focus:
-            cursor_column = len(self.current_stdouterr_line) + self.stdin.cursor_offset_in_line
+            cursor_column = (len(self.current_stdouterr_line) + self.stdin.cursor_offset_in_line) % width
             assert cursor_column >= 0, cursor_column
         elif self.coderunner.running:
-            cursor_column = len(self.current_cursor_line) + self.cursor_offset_in_line
+            cursor_column = (len(self.current_cursor_line) + self.cursor_offset_in_line) % width
             assert cursor_column >= 0, (cursor_column, len(self.current_cursor_line), len(self._current_line), self.cursor_offset_in_line)
         else:
-            cursor_column = len(self.current_cursor_line) - len(self._current_line) + self.cursor_offset_in_line
+            cursor_column = (len(self.current_cursor_line) - len(self._current_line) + self.cursor_offset_in_line) % width
             assert cursor_column >= 0, (cursor_column, len(self.current_cursor_line), len(self._current_line), self.cursor_offset_in_line)
 
         if self.list_win_visible:
