Hello,
I did some investigation and
it seems the problem with '\a' is not that the output is not
colored but that it's printed at all while it should not be.
It's being printed even when re_search in EGexecute doesn't
return a match. As a result the for loop in print_line_middle
is not being run - this means the 'a' output that you see is
not from the matched string but from the rest of the line. To
fix this I suggest to return NULL from print_line_middle if
'b' variable equals NULL - which means the loop was not
executed.
I'm sending the patch with the
fix in the attachment.
Best regards,
Tomasz Dziendzielski