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(ng-class="{'has-error':!form.toinput.$valid && !form.toinput.$pristine}")
                  label.col-sm-2.control-label(for="toinput") To
                  .col-sm-7
                      .input-group
                          input.form-control#toinput(type="text", placeholder="To", 
                              ng-model="item.to", required, ng-trim="true", name="toinput",
                              ng-pattern="path")
  
negative.code: 
              .form-group
                  .col-sm-offset-2.col-sm-10
                      button.btn.btn-primary.btn-sm(type="button", ng-if="isEdit", ng-disabled="form.$invalid || form.$pristine", ng-click="update()") Update
                      button.btn.btn-primary.btn-sm(type="button", ng-if="!isEdit", ng-disabled="form.$invalid || form.$pristine", ng-click="create()") Create
                      button.btn.btn-default.btn-sm(type="button", ng-click="reset()") Reset
  