Week number

[yves COPPE]

>This is my last whack at it.. there's definitely got to be a better 
>way. But these seems to work.
>Just specify your month, day & year in the first few lines...
>
>on mouseup
>   put the seconds into nowSecs
>   put "12" into theMonth
>   put "31" into theDay
>   put "2002" into theYear
>   put "no" into leapThisYear
>   if "." is not in theYear/4 then
>     put "yes" into leapThisYear
>     if "." is in theYear/100 then
>       put "no" into leapThisYear
>       if "." is not in theYear/2000 then
>         put "yes" into leapThisYear
>       end if
>     end if
>   end if
>   if theMonth>01 then add 31 to dayCount
>   if theMonth>02 then add 28 to dayCount
>   if leapThisYear="yes" then add 1 to dayCount
>   if theMonth>03 then add 31 to dayCount
>   if theMonth>04 then add 30 to dayCount
>   if theMonth>05 then add 31 to dayCount
>   if theMonth>06 then add 30 to dayCount
>   if theMonth>07 then add 31 to dayCount
>   if theMonth>08 then add 31 to dayCount
>   if theMonth>09 then add 30 to dayCount
>   if theMonth>10 then add 31 to dayCount
>   if theMonth>11 then add 30 to dayCount
>   set itemDelimiter to "/"
>   add theDay to dayCount
>   put dayCount*24*60*60 into furtherSecsThisYear
>
>   put 0 into totalSecs
>
>   put 1969 into sYr
>   repeat
>     add 1 to sYr
>     if sYr=theYear then exit repeat
>     put "no" into leapYear
>     if "." is not in sYr/4 then
>       put "yes" into leapYear
>       if "." is in sYr/100 then
>         put "no" into leapYear
>         if "." is not in sYr/2000 then
>           put "yes" into leapYear
>         end if
>       end if
>     end if
>
>     if leapYear="no" then put 365 into daysThisYear
>     else put 366 into daysThisYear
>     add daysThisYear*60*60*24 to totalSecs
>
>   end repeat
>   put (totalSecs+furtherSecsThisYear)-totalSecs into netSecsThisYr
>
>   put netSecsThisYr/60/60/24/7 into netWeek
>
>   set itemDelimiter to "."
>   put item 1 of netWeek into thisWeek
>   answer thisWeek
>
>end mouseup
>
>


Fine, it does just what I want.
I made a fuction of your code BUT for an european date : "DD/MM/YYYY"
it can easily be adapted for an other format of date.
there was a previous discussion in the list about the date format
One may take the code of this date format to adapt the function in an 
international format


function WeekNr theDate
   set itemdelimiter to "/"
   put item 1 of theDate into theDay
   put item 2 of theDate into theMonth
   put item 3 of theDate into theYear
   set itemdelimiter to comma
   --put "12" into theMonth
   --put "31" into theDay
   --put "2002" into theYear
   put "no" into leapThisYear
   if "." is not in theYear/4 then
     put "yes" into leapThisYear
     if "." is in theYear/100 then
       put "no" into leapThisYear
       if "." is not in theYear/2000 then
         put "yes" into leapThisYear
       end if
     end if
   end if
   if theMonth>01 then add 31 to dayCount
   if theMonth>02 then add 28 to dayCount
   if leapThisYear="yes" then add 1 to dayCount
   if theMonth>03 then add 31 to dayCount
   if theMonth>04 then add 30 to dayCount
   if theMonth>05 then add 31 to dayCount
   if theMonth>06 then add 30 to dayCount
   if theMonth>07 then add 31 to dayCount
   if theMonth>08 then add 31 to dayCount
   if theMonth>09 then add 30 to dayCount
   if theMonth>10 then add 31 to dayCount
   if theMonth>11 then add 30 to dayCount
   set itemDelimiter to "/"
   add theDay to dayCount
   put dayCount*24*60*60 into furtherSecsThisYear

   put 0 into totalSecs

   put 1969 into sYr
   repeat
     add 1 to sYr
     if sYr=theYear then exit repeat
     put "no" into leapYear
     if "." is not in sYr/4 then
       put "yes" into leapYear
       if "." is in sYr/100 then
         put "no" into leapYear
         if "." is not in sYr/2000 then
           put "yes" into leapYear
         end if
       end if
     end if
   
     if leapYear="no" then put 365 into daysThisYear
     else put 366 into daysThisYear
     add daysThisYear*60*60*24 to totalSecs
   
   end repeat
   put (totalSecs+furtherSecsThisYear)-totalSecs into netSecsThisYr

   put netSecsThisYr/60/60/24/7 into netWeek

   set itemDelimiter to "."
   put item 1 of netWeek into thisWeek
   add "1" to thisWeek
   return thisWeek
end WeekNr
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