Hi Mark, Note that you could combine your two TW macros by using <$macrocall > $name=FutureDate ..../> in the first macro. >
Thanks, I'm aware of that. It's just my habit of substituting things ;) On Tuesday, 15 October 2019 16:17:59 UTC+1, Mark S. wrote: > > Hi Hubert, > > A JS macro might be the way I'll have to go. I'm downloading your json for > a look. > > Note that you could combine your two TW macros by using <$macrocall > $name=FutureDate ..../> in the first macro. > > Thanks! > > On Tuesday, October 15, 2019 at 2:28:56 AM UTC-7, Hubert wrote: >> >> Hi Mark, >> >> I know you've asked for a solution using core tools but I'm attaching a >> JS macro I made anyway in case you'd decide to use it. >> >> The invocation is <<FutureDate YYYYMMDD y m d>> (y=years, m=months, >> d=days), so for example for 2 months and 15 days from the 1 December 2019 >> you would put <<FutureDate 20191201 0 2 15>>. >> >> If you wish to calculate time from now, use: >> >> \define date_offset() >> <$set name=today value=<<now YYYY0MM0DD>>> >> <<date_offset_2>> >> </$set> >> \end >> >> \define date_offset_2() >> <<FutureDate $(today)$ 0 0 90>> >> \end >> >> <<date_offset>> >> >> The macro also works with negative numbers, so "Future" Date isn't very >> accurate in terms of name (feel free to rename, adjust, etc). The macro >> works on full days only (disregards time), so it doesn't care what timezone >> you're in, doesn't convert to UTC etc., it just adds/subtracts full years, >> months or days from the current (local) date. >> >> The output is in the same format as the <<now>> macro, so YYYY0MM0DD >> (though without hours, minutes, seconds, etc. as it's time-agnostic). you >> can easily modify this macro if you wish a different output. >> >> Please read the description. >> >> Macro to find a future date based on the number of years, months or days >> from today. >> >> Required input: >> <<FutureDate YYYYMMDD y m d>>, >> where YYYYMMDD is the starting date and y, m, d are, respectively, year(s), >> month(s) and/or day(s) to be added to the starting date. >> >> *Don't add more than 12 months in one parameter -- for example, instead of >> adding 18 months, add 1 year and 6 months*. >> >> >> Enjoy! >> >> Hubert >> >> On Tuesday, 15 October 2019 02:41:46 UTC+1, TonyM wrote: >>> >>> Mark, >>> >>> I have successfully used Evans formulae plugin for this, however the >>> native method I know of is as follows; >>> >>> Although the days operator will not return the date for you to make use >>> of it will be able to find tiddlers in which contain a standard date field >>> that comply with the days operator, so you would use days[+6] days[+10] >>> days[+90] to look that many days into the future. >>> >>> you can then utilise a second days operator to eliminate days prior to >>> today. >>> >>> Here is a reply that I did in the past >>> <https://groups.google.com/d/msg/tiddlywiki/fbszxrvatvA/kCQzCDFwAAAJ>that >>> helps using the days operator but not the use of two at once. >>> >>> The trick I have found with the days operator is it is always relative >>> to today, ie +4 or -4 represents dates passing through today >>> >>> - + 4 all dates in the future back today and further into the past >>> - - 4 all days from 4 days ago through today in into the future >>> >>> So (without retesting} [days[+4]days[-1] would be all dates upto 4 days >>> in the future and also from yesterday (including those in the future). >>> Since the days operator returns the tiddler titles, from which you can >>> extract the date that resulted from the days operator, you can do more with >>> the date if required. >>> >>> Warnings >>> >>> - It is quite easy to use two days operators that result in nothing >>> because you eliminate all >>> - Using the not ! and the + and - values can quickly trip you up >>> because you are doing binary backflips, double negatives etc.. >>> >>> >>> On Wednesday, August 21, 2019 at 12:11:35 AM UTC+10, Mark S. wrote: >>>> >>>> Or better yet, "6 days from given date." >>>> >>>> Yes, I know there are plugins to allow additional math abilities. >>>> >>>> But is there any way to do date math with existing core tools? Since >>>> there are a bunch of new math tools? I didn't see anything >>>> that looked like it could do date math, but maybe I'm missing something? >>>> >>>> In particular, I'd like to calculate 6, 10, 90 days out. >>>> >>>> Thanks! >>>> >>> -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/39276de5-a512-443d-922c-83a7bf1d560f%40googlegroups.com.
