AngularJS & bindonce: bo-attr usage

Sample with bo atr

HTML

<script src="http://pasvaz.github.io/bindonce/javascripts/bindonce-0.3.1/bindonce.min.js"></script>
<div ng-app="app" ng-controller="ctrl" bindonce>
    <a bo-attr-title="title">anchor1</a>
    <a bo-attr="" bo-attr-title="{{title_ref}}">anchor2</a>
    <a bo-attr="" bo-attr-title="'{{title}}'">anchor3</a>
    <a bo-attr="" bo-attr-title="{{title_title_ref}}">anchor4</a>
    <br />
    <a ng-attr-title="title">anchor1</a>
    <a ng-attr-title="{{title_ref}}">anchor2</a>
    <a ng-attr-title="'{{title}}'">anchor3</a>
</div>

JavaScript

angular.module('app', ['pasvaz.bindonce'])
.controller('ctrl', ['$scope', function($scope) {
    $scope.title = 'some text with $peci@l chars'
    $scope.title_ref = 'title'
    $scope.title_title_ref = 'title_ref'
}])