Split a String based on regex

Question

I have a string that needs to be split based on the occurrence of a \",\"(comma), but need to ignore any occurrence of it that comes within a pair of parentheses. For exampl

Answer 1

One simple iteration will be probably better option then any regex, especially if your data can have parentheses inside parentheses. For example:

String data="Some,(data,(that),needs),to (be, splited) by, comma";
StringBuilder buffer=new StringBuilder();
int parenthesesCounter=0;
for (char c:data.toCharArray()){
    if (c=='(') parenthesesCounter++;
    if (c==')') parenthesesCounter--;
    if (c==',' && parenthesesCounter==0){
        //lets do something with this token inside buffer
        System.out.println(buffer);
        //now we need to clear buffer  
        buffer.delete(0, buffer.length());
    }
    else 
        buffer.append(c);
}
//lets not forget about part after last comma
System.out.println(buffer);

output

Some
(data,(that),needs)
to (be, splited) by
 comma