gistfile1.js

'use strict';

angular.module('coolModule')
    .directive('goFormatSpecialCharacters', function(){
        return {
            restrict: 'A',
            require: 'ngModel',
            link: function(scope, elem, attrs, ctrl) {
                var PATTERN = /\&#{0,1}[A-Za-z0-9]+;/ig;

                function format(input) {
                    if (input) {
                        if(input.match(PATTERN)) {
                            var transfromed = elem.html(input).text();
                            ctrl.$setViewValue(transfromed);
                            ctrl.$render();

                            return transfromed;
                        } else {
                            return input;
                        }
                    }
                }
                ctrl.$formatters.push(format);
            }
        }
});