#!/bin/bash

curl "https://www.x.org/archive/individual/app/" 2> /dev/null | \
  tr "\"" "\n" | \
  grep "^xcalc-.*\.tar\.bz2\$" | \
  sed "s|^xcalc-\(.*\)\.tar\.bz2\$|\1|" | \
  sort -V | \
  tail -n1