Thanks everyone! And Ken - you've made my day by making me feel so stupid :) Seriously thanks for the input. And in the mean time I've learned a lot about the quirks of "convert" - tip is to ensure the time is 2am....
On 13/05/07, Ken Ray <[EMAIL PROTECTED]> wrote:
On Sun, 13 May 2007 19:18:25 +0100, David Bovill wrote: > This command passes the test: > > on date_AddMonth monthsToAdd, startDate, @endMonth, @endYear > /* > Problem is if new month has less days in it than the original start date > days > then just adding a month will add 2 months on conversion as the overlap > pushes it over the month > > -- can add extra month if next months max days are shorter > -- not a bug a feature? Or could trucate day to last of month? > */ > > convert startDate to dateItems > put startDate into someDate > > put item 3 of someDate into oDay > > put 1 into item 3 of someDate > put 2 into item 4 of someDate # seems to be required !!! > add monthsToAdd to item 2 of someDate > convert someDate to dateItems > > put item 1 of someDate into endYear > put item 2 of someDate into endMonth > > put oDay into item 3 of someDate > convert someDate to internet date > return someDate > end date_AddMonth How about this: on date_AddMonth monthsToAdd, startDate, @endMonth, @endYear put item 1 of startDate into tYear put item 2 of startDate into tMonth put (monthsToAdd+tMonth) mod 12 into endMonth if endMonth = 0 then put 12 into endMonth put ((monthsToAdd+tMonth) div 12) + tYear into endYear end date_AddMonth
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