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                    | 
                        Title | 
                    
                        Test
                        Details
                        
                        
                            Pattern Title
                        
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                    | 
                        Expression | 
                    
                         
                            ^[a-zA-Z][0-9][a-zA-Z]\s?[0-9][a-zA-Z][0-9]$
                         
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                    | 
                        Description | 
                    
                         Match Canadia Zip Code. You can have a space in the middle Like T2P 3C7, or no space like T2P3C7 
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                    | 
                        Matches | 
                    
                         T2p 3c7 | T3P3c7 | T2P 3C7 
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                    | 
                        Non-Matches | 
                    
                         123456 | 3C7T2P | 11T21RWW 
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                    | 
                        Author | 
                    
                        Rating:
                            
 
                        
                            Qing Jiang
                        
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                    | 
                        Title | 
                    
                        Test
                        Details
                        
                        
                            Pattern Title
                        
                     | 
                
                
                    | 
                        Expression | 
                    
                         
                            ^((\d{5}-\d{4})|(\d{5})|([A-Z]\d[A-Z]\s\d[A-Z]\d))$
                         
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                    | 
                        Description | 
                    
                          This expression matches three different formats of postal codes: 5 digit US ZIP code, 5 digit US ZIP code + 4, and 6 digit alphanumeric Canadian Postal Code. The first one must be 5 numeric digits. The ZIP+4 must be 5 numeric digits, a hyphen, and then 4 numeric digits. The Canadian postal code must be of the form ANA NAN where A is any uppercase alphabetic character and N is a numeric digit from 0 to 9.   
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                    | 
                        Matches | 
                    
                         44240 | 44240-5555 | T2P 3C7 
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                    | 
                        Non-Matches | 
                    
                         44240ddd | t44240-55 | t2p3c7 
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                    | 
                        Author | 
                    
                        Rating:
                            
 
                        
                            Qing Jiang
                        
                     | 
                
            
        
    
        
        
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