Re: [Groff] preserve ascii escape characters from input

[Ralph Corderoy]

Hi,

I wrote:
> Perhaps better would be to give an example command that shows the
> effect, e.g. using printf(1)
> 
>     printf 'before\x1b[1mbold\x1b[mafter\n'
> 
> and have the user run that if they think their terminal supports it.

The man page should probably also mention terminal-independent ways of
doing some of these escape sequences, e.g. tput(1) and terminfo(5).
These two produce the same bytes on a terminal that supports ANSI,

    printf 'aaa\x1b[1mbbb\x1b[m\x1b(Bccc\n'
    echo "aaa`tput bold`bbb`tput sgr0`ccc"

but the latter will also work on other terminals.  It's horrible when
commands hard-code ANSI escape sequences, e.g. the otherwise good
dstat(1).

Cheers,
Ralph.