Interpet or drop terminal control sequences

[justin-stephenson]

Recorded sessions may include control sequences that can be ignored. For example, tmux sets a title definition. This causes the title string to be included in the recording output, duplicating the shell prompt effectively.

\u001bkrecuser@agalloch:~\u001b\\

ESC k Title Definition String
ESC \ | 0x9C | ST | String Terminator | Terminates strings in other controls

Reference:
https://en.wikipedia.org/wiki/ANSI_escape_code
https://www.gnu.org/software/screen/manual/html_node/Control-Sequences.html

[spbnick]

This is likely to be fixed in the terminal emulator we're using.