| Title | 
                
                    Test
                    Find
                    
                    Positive Integer
                 | 
            
            
                | Expression | 
                ^\d+$  | 
            
            
                | Description | 
                Positive integer value.  | 
            
            
                | Matches | 
                123 | 10 | 54  | 
            
            
                | Non-Matches | 
                -54 | 54.234 | abc  | 
            
            
                | Author | 
                
                    Rating:
                        
 
                    Steven Smith
                 | 
            
            
                | Source | 
                http://www.aspalliance.com/wiseasp/aboutregularexpression.asp | 
            
            
              | Your Rating | 
              
                
		       | 
            
        
    
 
    
    
     
        
                
	                Title: Dot passed through
	                Name: kk
	                Date: 9/9/2015 2:01:41 PM
	                Comment: 
this will pass 123.
                
                
            
                
	                Title: space is not a positive integer
	                Name: SpaceGuy
	                Date: 3/19/2012 8:03:30 PM
	                Comment: 
This accept space and it's not correct.
                
                
            
                
	                Title: Zero is not positive
	                Name: Al
	                Date: 1/30/2012 3:59:25 PM
	                Comment: 
Zero is not positive (or negative) and should not be matched, but this is a useful expression nonetheless. Suggest changing the title to "Non-negative integer"
                
                
            
                
	                Title: Zero is an acceptable value
	                Name: Dolu
	                Date: 8/23/2010 11:08:18 AM
	                Comment: 
Zero is also a positive number, at least in a mathematic context.
                
                
            
                
	                Title: Accepts 0 as well, it should not
	                Name: Vineet Gupta
	                Date: 4/30/2009 4:26:13 PM
	                Comment: 
A positive integer should not accept 0.
                
                
            
                
	                Title: Close but...
	                Name: Kevin
	                Date: 7/26/2005 3:55:29 PM
	                Comment: 
this will also accept 0, which is not a positive integer
                
                
            
                
	                Title: Good 'n Simple
	                Name: Murray
	                Date: 3/15/2005 7:54:14 PM
	                Comment: 
This is all you need for validating optional user input where you want a count of items.