code: function WhileCommand(args, define) {
      var parsed = new statements.ArgumentStatement(args, {
          separator: false
      });
  
      this.condition = parsed.args[0];
      this.block = define({
          start: 'WHILE',
          end: 'WEND'
      });
  }
docs: Iterates over the commands body until the condition is true
  
  @param {String} args The arguments to the command
  @param {Function} define
  @constructor