url="$(echo -e "${url}" |sed 's:\t: :g;s:\r::g;s:\\:\\\\:g' |head -n1)"
rev="$(egrep -o '(^|&)(r=)[0-9]+(&|$)' <<<"${QUERY_STRING}" |tr -d 'r=&')"
url="$(echo -e "${url}" |sed 's:\t: :g;s:\r::g;s:\\:\\\\:g' |head -n1)"
rev="$(egrep -o '(^|&)(r=)[0-9]+(&|$)' <<<"${QUERY_STRING}" |tr -d 'r=&')"