| Title | 
                
                    Test
                    Find
                    
                    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
                 | 
            
            
                | Source | 
                Edward Stafford - www.pixelengineers.com | 
            
            
              | Your Rating | 
              
                
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	                Title: Does not error when all zeros are entered.
	                Name: Dawn
	                Date: 3/7/2018 2:25:47 PM
	                Comment: 
This does not error if all zeros are entered which is an invalid US Zip Code