| Title | 
                
                    Test
                    Find
                    
                    Pattern Title
                 | 
            
            
                | Expression | 
                ^\d{3}\s?\d{3}\s?\d{3}$  | 
            
            
                | Description | 
                Social Insurance Number validator.  
Canadians only need apply.
If somebody could help me (I'm bad at regex), I would like to modify this so that if there is one space after the 3rd digit (or 6th) then there must be one after the 6th (or third).    | 
            
            
                | Matches | 
                123 456 789 | 123456789 | 123 456789  | 
            
            
                | Non-Matches | 
                1234 5678 9 | 123 456 7890 | 123  | 
            
            
                | Author | 
                
                    Rating:
                        
Not yet rated.
                    Matt Martens
                 | 
            
            
                | Source | 
                 | 
            
            
              | Your Rating | 
              
                
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	                Title: validate your data
	                Name: Christian Caron
	                Date: 1/5/2004 1:20:48 PM
	                Comment: 
The best is to make sure there are no space in it. Just remove all the non-numeric characters (s/[^0-9]//g).
                
                
            
                
	                Title: character after 3rd and 6th digit
	                Name: Michael Ash
	                Date: 12/19/2003 4:28:09 PM
	                Comment: 
^\d{3}( ?)\d{3}\1\d{3}$
This will require the third and sixth  digits, both or neither, be followed by a space.
                
                
            
                
	                Title: Try This
	                Name: Dean Dal Bozzo
	                Date: 12/18/2003 8:49:00 PM
	                Comment: 
^\d{3}\s\d{3}\s\d{3}|\d{9}$
RegEx seem intimating at first but, the more you do them the eaiser they get.