AS3用实体名称替换特殊XML字符（部分集）

Posted 2021-02-25

These five characters should be replaced with their html entity names before being used in XML, otherwise they may cause the XML to be invalid.

// http://xml.silmaril.ie/authors/specials/
 
function replaceSpecialXmlChars($str:String):String {
	var regExp:RegExp;
	regExp = /&/g;
	$str = $str.replace(regExp, "&");
	regExp = /</g;
	$str = $str.replace(regExp, "&lt;");
	regExp = />/g;
	$str = $str.replace(regExp, "&gt;");
	regExp = /"/g;
	$str = $str.replace(regExp, "&quot;");
	regExp = /'/g;
	$str = $str.replace(regExp, "&apos;");
	return $str;
}
 
var myStr:String = "<&>"'<&>"'";
trace(myStr);
trace(replaceSpecialXmlChars(myStr));
 
// OUTPUT
// <&>"'
// &lt;&amp;&gt;&quot;&apos;