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                    | 
                        Title | 
                    
                        Test
                        Details
                        
                        
                            Pattern Title
                        
                     | 
                
                
                    | 
                        Expression | 
                    
                         
                            ^[0-9]{5}([\s-]{1}[0-9]{4})?$
                         
                     | 
                
                
                    | 
                        Description | 
                    
                         My first Expression. This will match US postal codes (zip codes) using simple 5 digit format with optional 4 digit extention seperated by a space or hyphen. Will not accept letters.
example: 12345 or 12345-1234 or 12345 1234. 
                     | 
                
                
                    | 
                        Matches | 
                    
                         12345-1234 | 12345 | 12345 1234 
                     | 
                
                
                    | 
                        Non-Matches | 
                    
                         123451234 | 12345 a345 | a2345-1234 
                     | 
                
                
                    | 
                        Author | 
                    
                        Rating:
                            
Not yet rated.
                        
                            Ed Stafford
                        
                     | 
                
            
        
    
        
        
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