Explanation of my reg exp code

Question

Hi,
When I run my code below, the line:
Seat 4: playafly299 ($10 in chips)
results in a match, but
Seat 6: WillRyker ($5.55 in chips)
results in a miss. Can someone explain why? I read the pattern below as:
String literal Seat followed by one or more digits followed by colon followed by space followed by anything followed by space followed by character literal '(' followed by character literal '$' or nothing, followed by one or more digits followed by character literal '.' and one or more digits, OR nothing followed by string literal in chips. Am I missing something? Please help.
         String patternStr = "Seat (\\d+): (.+) \\(\\$?(\\d+[\\.\\d+]?) in chips\\)";
         Pattern p = Pattern.compile(patternStr);
         Matcher m = p.matcher(currentLine);         
         if ( m.find() ) {
              System.out.println("MATCH:" +currentLine);
              Table t = h.getTable();
              int seat_num = Integer.parseInt(m.group(1));
              String player_name = m.group(2);
              double chip_stack = Double.parseDouble(m.group(3));
              System.out.println("CREATING PLAYER: " +player_name+ " with stack: " +chip_stack);
              Player player = new Player(player_name, chip_stack);
              t.setPlayerAtSeat(seat_num, player);      
         } else {
              System.out.println("MISS: " +currentLine);
         }

Answer 1

Konigs wrote:
Thank you Sabre. When are the other brackets appropriate?The square brackets are used to define a set of characters (not a sequence) and the () brackets define a group. You have an optional group that includes the decimal point so you need () not [] .