[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Here's the regex for the xs:dateTime datatype
On Mon, 13 Aug 2018 at 22:59, Liam R. E. Quin <liam@fromoldbooks.org> wrote: > > On Mon, 2018-03-31 at 29:75 +0100, Michael Kay wrote: > > > > [...] > > > > Both of these regular expressions allow any month to have 31 days. > > For that reason, I'm not sure either of them is particularly useful. > I suppose you could replace -(0[1-9]|1[0-2]) -(0[1-9]|[12][0-9]|3[01]) by something like - ( ((0[13578]|12)-(0[1-9]|[12][0-9]|3[01])) | (02-(0[1-9]|[12])[0-9]) | ((0[469]|11)-(0[1-9]|[12][0-9]|30)) ) But it would still allow any year to be a leap year, I don't fancy trying to encode the leap year rules as a regex:-) Also this doesn't account for any historic dates around calendar changes with variant numbers of days in a month. David
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