| Title | Test
                    Find
                    
                    Pattern Title | 
            
                | Expression | ^[0-9]{4}\s{0,1}[a-zA-Z]{2}$ | 
            
                | Description | Regular expression to evaluate dutch zipcodes. This is an updated version of Roland Mensenkamp. | 
            
                | Matches | 2034AK | 2034 AK | 2034 ak | 
            
                | Non-Matches | 2034     AK | 321321 AKSSAA | 
            
                | Author | Rating:
                        
Not yet rated.
                    Jon van Leuven | 
            
                | Source |  | 
            
              | Your Rating |  | 
        
    
 
    
    
     
        
                
	                Title: The term 'Dutch' is wrong!
	                Name: Oscar
	                Date: 8/31/2011 12:23:20 AM
	                Comment: 
The term 'Dutch' is wrong! This is a postal code from The Netherlands, not 'Dutch'!
'Dutch' is NOT a country but a language which is spoken in different countries (with different forms of postal codes).
As such, please do not use such a regexp if you know your users speak 'Dutch'. Their postal code might be quite different!
                
                
            
                
	                Title: Not strict enough
	                Name: Erik Terwiel
	                Date: 3/22/2011 8:34:41 AM
	                Comment: 
This is too simple: letter combinations SS, SD and SA are not allowed for histiric reasons.
                
                
            
                
	                Title: Not strict enough
	                Name: Erik Terwiel
	                Date: 3/22/2011 8:34:08 AM
	                Comment: 
This is too simple: letter combinations SS, SD and SA are not allowed for histiric reasons.
                
                
            
                
	                Title: Zipcode cannot start with zero
	                Name: Nic Scholten
	                Date: 9/9/2004 2:22:25 AM
	                Comment: 
A Dutch zipcode cannot start with a zero
                
                
            
                
	                Title: RE
	                Name: Jon van Leuven
	                Date: 11/28/2003 4:41:07 AM
	                Comment: 
Martijn, thanks for the update, good remark!
MastaX,
The 2034 AK should be 2034   AK (with more than one space) but this isn't visible in a html page, thats. So 2034 AK is a match and 2034   AK is no match.
                
                
            
                
	                Title: Could be better
	                Name: Martijn02
	                Date: 10/22/2003 10:48:24 AM
	                Comment: 
MastaX, I think the 2034 AK in the non matches is 2034 AK with two spaces th parts.
A better check should be
^[1-9][0-9]{3}\s{0,1}[a-zA-Z]{2}$ 
Because all zipcodes in the netherlands are above 1000
                
                
            
                
	                Title: Match?
	                Name: MastaX
	                Date: 5/25/2003 12:59:50 PM
	                Comment: 
Sample Matches:  
2034AK / 2034 AK / 2034 ak  
Sample Non-Matches:  
2034 AK / 321321 AKSSAA  
you have 2034 AK in both, is it a match or not?