Strange ^[[?2004h and ^[[?2004l characters in the terminal

Issue

• When working in a terminal emulator, usually there is a pattern of ^[[?2004h (enable bracketed paste mode) before the prompt and/or ^[[?2004l (disable bracketed paste mode) after the prompt.

  • It is possible to have other patterns like ^[[200~ (start of paste) and ^[[201~ (end of paste).
  • The visible artifacts might not be the full sequences listed above as the ^[ escape character might not be visible as well as the [ start of sequence.