Cleanup typescript generated using script command

typescript-cleanup.sh

#!/bin/sed -rf
# Requires GNU sed
#
# Based on this response: https://stackoverflow.com/a/28269556
# ANSI Sequences: https://gist.github.com/fnky/458719343aabd01cfb17a3a4f7296797

# Remove BEL and BACKSPACE from command line inputs
:again
s/\x07+//g
s/[^\x08]\x08(\x1b\[K)?//
t again

# Erase codes
s/(\x1b\[0?K)+/ /g
s/(\x1b\[0?K)+\r/\n/g
s/(\x1b\[1K)+/\n/g

# Xterm codes
s/\x1b_[^\x1b]*\x1b[\]//g

# Color codes
s/\x1b\[[^m]*m//g

# Cursor control codes
s/\x1b\[[^H]*H//g
s/\x1b\[#[A-G]//g

# Screen modes
s/\x1b\[[^h]*h//g
s/\x1b\[=[0-9]+l//g