Sanitize
Skip the \u001b
that kicks off the unknown Ansi escape but leave
subsequent characters in place, so the end-user can see that an Ansi
escape was entered e.g. via the [A[B[A[C that appears in the result
Skip the \u001b
that kicks off the unknown Ansi escape but leave
subsequent characters in place, so the end-user can see that an Ansi
escape was entered e.g. via the [A[B[A[C that appears in the result