text: /**
   * Copyright 2013 IBM Corp.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   **/
  
  module.exports = function(RED) {
      "use strict";
      var wol = require('wake_on_lan');
      var chk = /^([0-9A-F]{2}[:-]){5}([0-9A-F]{2})$/;
  
      function WOLnode(n) {
          RED.nodes.createNode(this,n);
          this.mac = n.mac.trim();
          var node = this;
  
          this.on("input", function(msg) {
              var mac = this.mac || msg.mac || null;
              if (mac != null) {
                  if (chk.test(mac)) {
                      wol.wake(mac, function(error) {
                          if (error) { node.warn(error); }
                      });
                  }
                  else { node.warn('WOL: bad mac address "'+mac+'"'); }
              }
              else { node.warn("WOL: no mac address specified"); }
          });
      }
      RED.nodes.registerType("wake on lan",WOLnode);
  }
  