code: function parseComparator(comp, loose) {
    debug('comp', comp);
    comp = replaceCarets(comp, loose);
    debug('caret', comp);
    comp = replaceTildes(comp, loose);
    debug('tildes', comp);
    comp = replaceXRanges(comp, loose);
    debug('xrange', comp);
    comp = replaceStars(comp, loose);
    debug('stars', comp);
    return comp;
  }
docs: comprised of xranges, tildes, stars, and gtlt's at this point. already replaced the hyphen ranges turn into a set of JUST comparators.