Regex Match Count and Scan

Question

Is there a way that I could print the contents of each regex match within a loop? Say I have the following pattern:

1xxxx2xxxx3

If I have a matcher that is (?mi)(\d)...How could I iterate through the matches and print out the contents of each match?

ex) System.debug(match1) //should be 1
    System.debug(match2) //should be 2
    System.debug(match3) //should be 3

Answer 1

Assuming that your regex is correct you can do the following to iterate over the matches:

Pattern p = Pattern.compile(yourRegex);
Matcher pm = p.matcher(yourString);
if (pm.matches()) {
    for (Integer i = 1; i <= pm.groupCount(); i++) {
        System.debug(pm.group(i));
    }
}

Reference: Matcher Class