tinymce.html.js
function(text, attr) {
                return text.replace(attr ? attrsCharsRegExp : textCharsRegExp, function(chr) {
                    return baseEntities[chr] || chr;
                });
            }
function(text, attr) {
                return text.replace(attr ? attrsCharsRegExp : textCharsRegExp, function(chr) {
                    return baseEntities[chr] || chr;
                });
            }
function ( text , attr ) { return text . replace ( attr ? attrsCharsRegExp : textCharsRegExp , function ( chr ) { return baseEntities [ chr ] || chr ; } ) ; }
Encodes the specified string using raw entities. This means only the required XML base entities will be encoded.

@method encodeRaw
@param {String} text Text to encode.
@param {Boolean} attr Optional flag to specify if the text is attribute contents.
@return {String} Entity encoded text.
Encodes the specified string using raw entities . This means only the required XML base entities will be encoded .