On Wednesday 23 May 2012 20:16:12 hasufell wrote:
> Thanks, I'v implemented most of that, but your proposal about
> non-duplicated list in case) has multiple problems. The only cases
> that actually work with that snippet are:
> 16x16|22x22|24x24|32x32|36x36|48x48|64x64|72x72|96x96|scalable.
> All others will fail (like 128x128 or just 48).

so do:
        size=
        if [[ $2 == "scalable" ]] ; then
                size=$2
        elif [[ ${2%%x*}x${2%%x*} == "$2" ]] ; then
                size=${2%%x*}
                case ${size} in
                16|22|24|32|36|48|64|72|96|128|192|256) ;;
                *) size= ;;
                esac
        fi
-mike