quicken dates

[Mike Kerner]

I'll email it to you off-list

On Mon, Oct 16, 2017 at 4:45 PM, Bob Sneidar via use-livecode <
use-livecode at lists.runrev.com> wrote:

> Thanks Mike! I have something similar but limited in scope, where I can
> type in yesterday or tomorrow ot today and get the respective date. I will
> incorporate your method for all my date fields! Unfortunately there are a
> TON of line wrapping errors introduced by your pasted code. I'll have to
> sus it all out.
>
> Bob S
>
>
> > On Oct 16, 2017, at 11:16 , Mike Kerner via use-livecode <
> use-livecode at lists.runrev.com> wrote:
> >
> > Way back in the day, Quicken allowed all kinds of shenanigans with dates
> > It allowed a variety of delimiters
> > It allowed pseudo-dates:
> > 20 -- 20th of the current month
> > 10/20 -- 10/20/current year
> > + -- tomorrow
> > m -- first of this month
> > h -- last of this month
> > etc.
> >
> > I really like this, because it makes it much easier than trying to look
> at
> > a calendar all the time, so I wrote my own version, that expands on the
> > idea:
> >
> > function quickenDate what
> >   /*
> >   Returns current date if sent an empty string
> >   Returns empty if can't figure out what "what" is supposed to be
> >
> >   Delimiter can be ".", "/", ";", <SP> or comma
> >   Date can be in m/d/y, m/d, or just d format
> >   Also accepts (upper or lower case)
> >   T - (T)oday
> >   M - First day of (M)onth
> >   H - Last day of mont(H)
> >   W - First day of (W)eek
> >   K - Last day of wee(K)
> >   Y - First day of (Y)ear
> >   R - Last day of yea(R)
> >   + - tomorrow
> >   +x, where x is an integer, x days from today
> >   - - yesterday
> >   -x where x is an integer, x days before today
> >   */
> >
> >   if what is empty then return the short date # you got a better idea?
> >
> >   put the short date into currentDateInDateItems
> >   convert currentDateInDateItems to dateItems #y,m,d,h(24
> > format),m,s,daynum (0 sun, 6 sat)
> >   put item 1 of currentDateInDateItems into currentYear
> >   put item 2 of currentDateInDateItems into currentMonth
> >
> >   if what="T" then #today
> >      put the short date into what
> >   else if what="Y" then #first day of year
> >      put "01/01/"&currentYear into what
> >   else if what="R" then #last day of year
> >      put "12/31/"&currentYear into what
> >   else if what="M" then # first of month
> >      put currentMonth&slash&"01"&slash&currentYear into what
> >   else if what="H" then # last day of month
> >      if currentMonth is 12 then
> >         put "12/31/"&currentYear into what
> >      else #not 12, # the easiest way to do this math is to get midnight
> on
> > the first day of the following month and then move back a second and let
> LC
> > do the math on what the date is
> >         # since otherwise we have to figure out the 30 days
> > have september, blah, blah, blah, and leap years, blah, blah, blah.
> >         add 1 to item 2 of currentDateInDateItems #next month
> >         put "0" into item 3 of currentDateInDateItems #I love dateItems.
> > How to figure out the last day of this month?  Go to first day of next
> > month and subtract 1, (making it a 0, e.g. 5/0/17 is 4/30/17)
> >         put currentDateInDateItems into what
> >      end if #currentMonth is 12
> >   else if what is "W" then #first day of week #sunday is first day of
> week
> >      put last item of currentDateInDateItems into dayNumber
> >      subtract (dayNumber-1) from item 3 of currentDateInDateItems
> >      put currentDateInDateItems into what
> >   else if what is "K" then #last day of week #saturday is last day of
> week
> >      put last item of currentDateInDateItems into dayNumber
> >      add (7-dayNumber) to item 3 of currentDateInDateItems
> >      put currentDateInDateItems into what
> >      convert what to short date
> >   else if first char of what is "+" then #at least tomorrow, but if
> > a nuber follows, then x days after today
> >      delete first char of what # "+"
> >      if what is empty then put 1 into what #"+" is tomorrow, i.e. +1
> >      add what to item 3 of currentDateInDateItems
> >      put currentDateInDateItems into what
> >   else if first char of what is "-" then # at least yesterday, or if a
> > number follows, then x days before today
> >      delete first char of what #"-"
> >      if what is empty then put 1 into what #"-" is yesterday, i.e. -1
> >      subtract what from item 3 of currentDateInDateItems
> >      put currentDateInDateItems into what
> >   else # a date-ish string could be a date only or a month and a date, or
> > a month and a date and a year
> >      #<determine the delimiter, if there is one.  It could be a comma, a
> > slash, a period, or a space>
> >         if what contains ";" then replace ";" with slash in what
> >         if what contains space then replace space with slash in what
> >         if what contains "." then replace "." with slash in what
> >         if what contains comma then replace comma with slash in what
> >      # and, if what doesn't contain any of those, comma will be the
> > delimiter
> >      #</determine the delimiter, if there is one.  It could be a comma, a
> > slash, a period, or a space>
> >
> >      set the itemDelimiter to slash
> >
> >      #<date format can be D, M/D, or M/D/Y, so test and add>
> >      if the number of items in what is not 3 then put slash&currentYear
> > after what   # try adding a year, first
> >      if the number of items in what is not 3 then put currentMonth&slash
> > before what # try adding the month, next
> >      #</date format can be D, M/D, or M/D/Y, so test and add>
> >
> >      if what is not a date then put empty into what #error
> >   end if #what="T"
> >
> >   convert what to short date
> >   return what
> > end quickenDate
> >
> > --
> > On the first day, God created the heavens and the Earth
> > On the second day, God created the oceans.
> > On the third day, God put the animals on hold for a few hours,
> >   and did a little diving.
> > And God said, "This is good."
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-- 
On the first day, God created the heavens and the Earth
On the second day, God created the oceans.
On the third day, God put the animals on hold for a few hours,
   and did a little diving.
And God said, "This is good."