how to get vcVms by regex expression

get vcVms by regex

var vmPattern="[a-z]{5}[0-9] [3]"

var allVms = VcPlugin.getAllVirtualMachines();

 var foundVms = new Array ();

// Check if the VM match the regexp

for (var i in allVms) {

   if (allVms[i].name.match(vmPattern)) {

      foundVms.push(allVms[i]);

      System.log("found Vm: "+allVms[i].name);

   }

}            

return foundVms;