crowdstf/lib/units/storage/plugins/image/param/crop.js

var RE_CROP = /^([0-9]*)x([0-9]*)$/

module.exports = function(raw) {
  var parsed

  if (raw && (parsed = RE_CROP.exec(raw))) {
    return {
      width: Number(parsed[1]) || 0
    , height: Number(parsed[2]) || 0
    }
  }

  return null
}