Fix misplaced prompt paste inserts.

diff --git a/src/ircplom/tui_base.py b/src/ircplom/tui_base.py
index 07351095ae9ab5a4c0be8471090d1bd43ececc1e..dbbec0800b6b1c3551d1525c6886222a41a8ad1e 100644 (file)
--- a/src/ircplom/tui_base.py
+++ b/src/ircplom/tui_base.py
@@ -564,10 +564,10 @@ class PromptWidget(_ScrollableWidget):
 
     def insert(self, to_insert: str) -> None:
         'Insert into prompt input buffer.'
-        self._cursor_x += len(to_insert)
-        self.input_buffer = (self.input_buffer[:self._cursor_x - 1]
+        self.input_buffer = (_buffer[:self._cursor_x]
                              + to_insert
-                             + self.input_buffer[self._cursor_x - 1:])
+                             + self.input_buffer[self._cursor_x:])
+        self._cursor_x += len(to_insert)
         self._history_idx_neg = 0
 
     def cmd__backspace(self) -> None: