smaller date regex

Posted by Jeremy on Stack Overflow See other posts from Stack Overflow or by Jeremy
Published on 2010-05-27T20:19:32Z Indexed on 2010/05/27 20:21 UTC
Read the original article Hit count: 347

Filed under:

regex

|

date

I have a regex used to validate dates:

^(((0[1-9]|[12]\d|3[01])\/(0[13578]|1[02])\/((19|[2-9]\d)\d{2}))|((0[1-9]|[12]\d|30)\/(0[13456789]|1[012])\/((19|[2-9]\d)\d{2}))|((0[1-9]|1\d|2[0-8])\/02\/((19|[2-9]\d)\d{2}))|(29\/02\/((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))))$

Works really well, but I am using it all over the place with asp.net regex validators and I want to minimize it so I can reduce page size. It works with dd/mm/yyyy format and handles leap years. I'm looking for a more concise regex statement.

© Stack Overflow or respective owner

Related posts about regex

Find multiple regex in each line and skip result if one of the regex doesn't match

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a list of variables: variables = ['VariableA', 'VariableB','VariableC'] which I'm going to search for, line by line ifile = open("temp.txt",'r') d = {} match = zeros(len(variables)) for line in ifile: emptyCells=0 for i in range(len(variables)): regex = r'('+variables[i]+r')[:|=|\(](-… >>> More
OWASP Regex Repository: Is this regex correct?

as seen on Stack Overflow - Search for 'Stack Overflow'
I was looking at the regular expression for validating various data types from the (OWASP Regex Repository). One of the regular expressions in there is called safetext and looks like: ^[a-zA-Z0-9\s.\-]+$ My first question is: Is this regular expression correct? complementary question If this… >>> More
Make a Perl-style regex interpreter behave like a basic or extended regex interpreter

as seen on Stack Overflow - Search for 'Stack Overflow'
I am writing a tool to help students learn regular expressions. I will probably be writing it in Java. The idea is this: the student types in a regular expression and the tool shows which parts of a text will get matched by the regex. Simple enough. But I want to support several different regex… >>> More
JS regex isn't matching, even thought it works with a regex tester

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm writing a piece of client-side javascript code that takes a function and finds the derivative of it, however, the regex that's supposed to match with the power rule fails to work in the context of the javascript program, even though it sucessfully matches when it's used with an independent regex… >>> More
c# RegEx with "|"

as seen on Stack Overflow - Search for 'Stack Overflow'
I need to be able to check for a pattern with | in them. For example an expression like d*|*t should return true for a string like "dtest|test". I'm no regex hero so I just tried a couple of things, like: Regex Pattern = new Regex("s*\|*d"); //unable to build because of single backslash Regex Pattern… >>> More

Related posts about date

Javascript Date object expression (Date within date)

as seen on Stack Overflow - Search for 'Stack Overflow'
Dear experts, I was analyzing Javascript codes and came across this line: var date = (new Date()).getDate(); This kinda throw me off? I am pretty new to Javascript and a little curious. >>> More
Populate google.visualization.DataTable for a AnnotatedTimeLine using JSON

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi I have a HttpHandler which returns some JSON in (i think) the correct format for a google.visualization.DataTable, but the AnnotatedTimeLine fails to work? This is the JSON returned by the Handler: {cols: [{id: 'DATE', label: 'Date', type: 'date'}, {id: 'KEYWORD51', label: 'vw cheltenham', type:… >>> More
Excel: Summing values within a certain date range (> start date and < Finish date)

as seen on Super User - Search for 'Super User'
How do I include a 'Between these dates' criteria inside a SUMPRODUCT? =Sumproduct((RangeName=Cell A1)*(RangeDate=Between 01/03/10 and 31/03/10)*(RangeCost)) What's the way to manage dates (between) in a sum product? Thanks Mike >>> More
Extjs Date Time Picker ,HighLight particular Date instead of system date

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, How to highlight the particular date in extjs calender(Date Time Picker) control, As default it will highlight the system date when its shows, i need to set highlight date as sql server date. since it will be different. Is there any property or override method to change the highlight date.… >>> More
Finding date between start date and end date

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I want to check whether a date is between start date and end date. i have added a where class where datepaid between '2010-04-01' AND '2010-04-15' but the problem is that it excludes '2010-04-15'. It should include end date also how can i do this? Please help me on this Regards, pankaj >>> More