+ [ "${length%%[1-9]*}" -o "${width%%[1-9]*}" -o "${height%%[1-9]*}" = 0 ] \
+ && read -r length width height discard <<-EOF
+ $(meta_line "$file"; echo Rereading meta for "$file" >&2)
+ EOF
+ [ "${tags%%tags=*}" ] && tags='tags=';
+ [ "${comment%%comment=*}" ] && comment='comment='