Folks, Since the title of this Post may attract people looking for the Days Operator and Examples (documentation addition) and since I have not had any reply's so far I have gone ahead and researched this. I have attached a tiddler I used to understand the days operator for anyone interested.
To be honest this days operator may have some advantages in some coding cases, and it provides the features we need it really confuses the user. *But I expect that why I got no replies is because almost no one understands it.* I will prepare a more refined set of examples and documentation however it will be quite tricky. Here are some conceptual ideas to keep in mind if you want to use it yourself. *This is my conclusion but needs independent verification.* When using the days parameter the number N in days[N] and days[-N] is always a date relative to today (Negative in the past, and Positive in the future) and today is always important. You can specify a field other than modified with days:fieldname[N]. The meaning of N never changes It is the point around which you are looking for dates. *Let us call the date referenced by the number a "Reference date", and they are relative to today* Now the Positive form of the days operator is "days[n]" and the negative form "!days[N]" First Using Zero for N If N = 0 days[0] in the positive form means all days in the past and future for the nominated date field. If N = 0 !days[0] in the negative form means NO days in the past or future for the nominated date field. Always no days at all. *The Positive or negative forms can be considered as * - Positive includes today *The positive form means always include today in the result* - Negative does not include today *The negative form means do not include today in the result* *Basically if you have today and a reference date say 7 or -7 days from now then (regardless of whether the reference date is + or -);* - The positive form will give you all days from the reference date, *including today *so it will be all dates before the reference date (into the past) - The negative form will give you all days from the reference date, *Not including today* for it will be all dates after the reference date (into the future) *If you want all days in the future of a given date* *it all depends on when today is* For Future reference dates Use the days operator !days[+N] For Past reference dates Use the days operator days[-N] *If you want all days in the past of a given date* *it all depends on when today is* For Future reference dates Use the days operator days[+N] For Past reference dates Use the days operator !days[-N] Remember ! is like Not, and Not including today *Using a range of dates, using the same date field and two days operators* *Use the convention of the past date first and future date second * days[-7]days[+7] - Use the positive or negative version of the days operator *but do NOT Mix them* *to mix them will either mean one is not necessary or the result is null* - The Positive (on both days operators) version will be the dates *between* the two reference dates. - The Negative (on both days operators) version will be the dates *Outside* the two reference dates. Regards Tony -- 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 post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/d0e17528-ed87-4c7e-bf07-c77140f8fd0d%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Understand the days Operator.tid
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