function htmlentities(string,quote_style,charset,double_encode){var hash_map=this.get_html_translation_table('HTML_ENTITIES',quote_style),symbol='';string=string==null?'':string+'';if(!hash_map){return false;} if(quote_style&&quote_style==='ENT_QUOTES'){hash_map["'"]=''';} if(!!double_encode||double_encode==null){for(symbol in hash_map){if(hash_map.hasOwnProperty(symbol)){string=string.split(symbol).join(hash_map[symbol]);}}}else{string=string.replace(/([\s\S]*?)(&(?:#\d+|#x[\da-f]+|[a-zA-Z][\da-z]*);|$)/g,function(ignore,text,entity){for(symbol in hash_map){if(hash_map.hasOwnProperty(symbol)){text=text.split(symbol).join(hash_map[symbol]);}} return text+entity;});} return string;}