Syntax error on token "",0,1))/range-to(end-point(string-range("", delete this token

Pattern rg = Pattern.compile("#xpointer\\(start-point\\(string-range\\(\"([^\"]*)\",([^,]*),1\\)\\)/range-to\\(end-point\\(string-range\\(\"([^\"]*)\",([^,]*),1\\)\\)\\)\\)");
Matcher m = rg.matcher("http://some.uri#xpointer(start-point(string-range(\"/p[69]/font/font\",0,1))/range-to(end-point(string-range(\"/p[70]/font/font\",120,1))))");
m.find();
System.out.println(m.group(4));  (No explicit return value)