});
DEFPRINT(AST_RegExp, function(self, output){
var str = self.getValue().toString();
- if (output.option("ascii_only"))
+ if (output.option("ascii_only")) {
str = output.to_ascii(str);
+ } else {
+ str = str.split("\\\\").map(function(str){
+ return str.replace(/(\\u[0-9a-fA-F]{4}|\\x[0-9a-fA-F]{2})/g, function(s, p1){
+ var code = parseInt(p1.substr(2), 16);
+ return code == 10 || code == 13 || code == 0x2028 || code == 0x2029 ? s : String.fromCharCode(code);
+ });
+ }).join("\\\\");
+ }
output.print(str);
var p = output.parent();
if (p instanceof AST_Binary && /^in/.test(p.operator) && p.left === self)