Re: Fixing escape format when values are empty

[Dennis Williamson]

On Wed, Apr 7, 2021, 10:47 PM <pauline-galea@gmx.com> wrote:

> I am using the following format to use colour when displaying text.
> an is the attribute number, bn is the background number, fn is the
> foreground number.
>
>   fmt="\e[${an};${bn};${fn}m"
>   printf "${fmt}%s\e[0m" "Jane"
>
> But "an", "bn", "fn" can be empty, and I then have to
> fix fmt.
>
> Currently I am using the following replacements, but unsure
> if this solves all problems.  Or perhaps there  are simpler
> way to modify fmt.
>
>   fmt="\e[${an};${bn};${fn}m"
>   fmt=${fmt/";;"/";"}   # replace [;  with [
>   fmt=${fmt/"[;"/"["}   # replace [;; with [
>
>
>


Please use tput.

>