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                    | 
                        Title | 
                    
                        Test
                        Details
                        
                        
                            Pattern Title
                        
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                    | 
                        Expression | 
                    
                         
                            ^(((((0[1-9])|(1\d)|(2[0-8]))/((0[1-9])|(1[0-2])))|((31/((0[13578])|(1[02])))|((29|30)/((0[1,3-9])|(1[0-2])))))/((20[0-9][0-9]))|((((0[1-9])|(1\d)|(2[0-8]))/((0[1-9])|(1[0-2])))|((31/((0[13578])|(1[02])))|((29|30)/((0[1,3-9])|(1[0-2])))))/((19[0-9][0-9]))|(29/02/20(([02468][048])|([13579][26])))|(29/02/19(([02468][048])|([13579][26]))))$
                         
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                    | 
                        Description | 
                    
                         This expression is an improved version of Jörg Maag. It checks a date field in the Australian DD/MM/YYYY format. Besides, it also validates leap year between 1900 and 2099. 
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                    | 
                        Matches | 
                    
                         29/02/1992 | 29/02/2000 | 29/02/2004 
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                    | 
                        Non-Matches | 
                    
                         29/02/1892 | 29/02/2100 | 29/02/3004 
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                    | 
                        Author | 
                    
                        Rating:
                            
Not yet rated.
                        
                            Yik Kheam Tan
                        
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