anchor.diff:              table.table.table-striped(ng-if="items.length")
                   thead
                       tr
  -                        th.col-sm-1: a(href="", ng-click="deleting.empty()", ng-hide="deleting.isEmpty()")
  -                            i.fa.fa-fw.fa-times-circle
  -                            | ({{deleting.howMany()|number}})
  +                        th.col-sm-1
                           th.col-sm-5
                               | From&nbsp;
                               a(href="", ng-click="order.by('from')")
  
positive.code: 
              .form-group
                  .col-sm-offset-2.col-sm-10
                      button.btn.btn-primary(type="button", ng-if="isEdit", ng-disabled="form.$invalid || form.$pristine", ng-click="update()") Update
                      button.btn.btn-primary(type="button", ng-if="!isEdit", ng-disabled="form.$invalid || form.$pristine", ng-click="create()") Create
                      button.btn.btn-default(type="button", ng-click="reset()") Reset
  
negative.code: 
              .form-group(ng-if="items.length")
                  .row
                      .col-sm-3
                          button.btn.btn-default.btn-sm(type="button", ng-click="verify()", ng-disabled="items.length<2") Verify
                      .col-sm-6.col-sm-offset-3
                          .input-group.input-group-sm
                              input.form-control(type="text", ng-model="url.$", ng-key-action="{27:'onEsc'}", on-esc="clrSearch()")
                              span.input-group-btn.input-group-sm
                                  button.btn.btn-default(type="button", ng-disabled="hasSearch()", ng-click="clrSearch()"): i.fa.fa-times-circle
  
              .text-center(ng-if="!items.length && isLoading")
  