Function parseComparator

lib/index.js:6337–6348

(comp, options)

// already replaced the hyphen ranges
// turn into a set of JUST comparators.
function parseComparator (comp, options) {
  debug('comp', comp, options)
  comp = replaceCarets(comp, options)
  debug('caret', comp)
  comp = replaceTildes(comp, options)
  debug('tildes', comp)
  comp = replaceXRanges(comp, options)
  debug('xrange', comp)
  comp = replaceStars(comp, options)
  debug('stars', comp)
  return comp
}

function isX (id) {
  return !id || id.toLowerCase() === 'x' || id === '*'