angular filter escape HTML special characters

angular.filter.HTML2TXT.js

/*
 
# Usage in html template:
 
"xxx | HTML2TXT"
 
<div ng-bind-html=" YourString | HTML2TXT "></div>


=======
Work with angular.filters.nl2br.js ( https://gist.github.com/naoyeye/8220054 )

<div ng-bind-html=" YourString | HTML2TXT | nl2br "></div>

NOTICE:
Keep "HTML2TXT" in front of "nl2br".
 
 
*/

angular.filter('HTML2TXT', function($sce){
    return function(msg) { 
        var RexStr = /\<|\>|\"|\'|\&/g;
        msg = (msg + '').replace(RexStr,
            function(MatchStr){
                switch(MatchStr){
                    case "<":
                        return "&lt;";
                        break;
                    case ">":
                        return "&gt;";
                        break;
                    case "\"":
                        return "&quot;";
                        break;
                    case "'":
                        return "&#39;";
                        break;
                    case "&":
                        return "&amp;";
                        break;
                    default :
                        break;
                }
            }
        )
        return $sce.trustAsHtml(msg);
    }
});