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PROGRAM datelist
c **********************************************************************
c * Handling of date lists *
c * Michael Sprenger *
c **********************************************************************
implicit none
c ---------------------------------------------------------------------
c Declaration of variables
c ---------------------------------------------------------------------
c Parameters
character*80 datefile
character*80 mode
character*80 startdate
character*80 finaldate
character*80 refdate
integer interval
real randpercent
c Date list
integer ndates
integer,allocatable,dimension(:) :: year,month,day,hour
c Auxiliary variables
integer i
integer year1,month1,day1,hour1,min1
integer year2,month2,day2,hour2,min2
character direction
integer date1(5),date2(5)
character*11 datestr,datestr1,datestr2
character ch
real diff
real time
character*80 datefile1,datefile2
integer timestamp1,timestamp2
integer oldstamp1 ,oldstamp2
integer state
c ---------------------------------------------------------------------
c Preparations
c ---------------------------------------------------------------------
c Read parameter file
open(10,file='datelist.param')
read(10,*) datefile ! General parameters
read(10,*) mode
if ( mode.eq.'-create' ) then ! Create date list
read(10,*) startdate
read(10,*) finaldate
read(10,*) interval
elseif ( mode.eq.'-totime' ) then ! Convert to time list
read(10,*) refdate
elseif ( mode.eq.'-todate' ) then ! Convert to date list
read(10,*) refdate
elseif ( mode.eq.'-onlyin1' ) then ! Dates only in file 1
read(10,*) datefile1
read(10,*) datefile2
else ! Invalid mode
print*,' ERROR: invalid mode for datelist'
stop
endif
close(10)
c ---------------------------------------------------------------------
c Create a date list (-create)
c ---------------------------------------------------------------------
if ( mode.ne.'-create' ) goto 100
c Check whether interval is ok
if ( ( interval.le.0 ).or.(interval.gt.24) ) then
print*,'Interval must be between 1 h and 24 h... Stop'
stop
endif
c Extract dates and times
read(startdate( 1: 4),*) year1
read(startdate( 5: 6),*) month1
read(startdate( 7: 8),*) day1
read(startdate(10:11),*) hour1
read(startdate(12:13),*) min1
read(finaldate( 1: 4),*) year2
read(finaldate( 5: 6),*) month2
read(finaldate( 7: 8),*) day2
read(finaldate(10:11),*) hour2
read(finaldate(12:13),*) min2
c Get direction of the date file
if (year2.gt.year1) then
direction = 'f'
goto 101
elseif (year2.lt.year1) then
direction = 'b'
goto 101
endif
if (month2.gt.month1) then
direction = 'f'
goto 101
elseif (month2.lt.month1) then
direction = 'b'
goto 101
endif
if (day2.gt.day1) then
direction = 'f'
goto 101
elseif (day2.lt.day1) then
direction = 'b'
goto 101
endif
if (hour2.gt.hour1) then
direction = 'f'
goto 101
elseif (hour2.lt.hour1) then
direction = 'b'
goto 101
endif
if (min2.gt.min1) then
direction = 'f'
goto 101
elseif (min2.lt.min1) then
direction = 'b'
goto 101
endif
direction = 'f'
101 continue
c Set the interval step depending on the direction
if ( direction.eq.'b' ) then
interval = -interval
endif
c Save the dates in arrays
date1(1) = year1
date1(2) = month1
date1(3) = day1
date1(4) = hour1
date1(5) = 0
date2(1) = year2
date2(2) = month2
date2(3) = day2
date2(4) = hour2
date2(5) = 0
c Get starting and ending date for the date list
if ( direction.eq.'f' ) then
do while ( mod(date1(4),interval) .ne. 0 )
date1(4) = date1(4) - 1
enddo
if (min2.ne.0) call newdate(date2,1.,date2)
do while ( mod(date2(4),interval) .ne. 0 )
date2(4) = date2(4) + 1
enddo
else
if (min1.ne.0) call newdate(date1,1.,date1)
do while ( mod(date1(4),interval) .ne. 0 )
date1(4) = date1(4) + 1
enddo
do while ( mod(date2(4),interval) .ne. 0 )
date2(4) = date2(4) - 1
enddo
endif
c Create and write the datefile
if ( datefile.ne.'/dev/stdout') then
open(10,file=datefile)
endif
102 continue
call datestring(datestr,date1(1),date1(2),date1(3),date1(4) )
if ( datefile.ne.'/dev/stdout') then
write(10,*) datestr
else
write(*,*) datestr
endif
if ( ( date1(1).ne.date2(1) ).or.
> ( date1(2).ne.date2(2) ).or.
> ( date1(3).ne.date2(3) ).or.
> ( date1(4).ne.date2(4) ) )
> then
diff = real(interval)
call newdate(date1,diff,date1)
goto 102
endif
if ( datefile.ne.'/dev/stdout') then
close(10)
endif
100 continue
c ---------------------------------------------------------------------
c Convert dates to a list of times
c ---------------------------------------------------------------------
if ( mode.ne.'-totime' ) goto 112
c Extract reference date
read(refdate( 1: 4),*) year1
read(refdate( 5: 6),*) month1
read(refdate( 7: 8),*) day1
read(refdate(10:11),*) hour1
read(refdate(12:13),*) min1
c Loop through the date file
open(10,file=datefile)
111 read(10,*,end=110) datestr
c Extract date
read(datestr( 1: 4),*) year2
read(datestr( 5: 6),*) month2
read(datestr( 7: 8),*) day2
read(datestr(10:11),*) hour2
min1 = 0
c Get the time difference
date1(1) = year1
date1(2) = month1
date1(3) = day1
date1(4) = hour1
date1(5) = 0
date2(1) = year2
date2(2) = month2
date2(3) = day2
date2(4) = hour2
date2(5) = 0
call timediff(date2,date1,diff)
c Write it to screen
write(*,'(i6)') nint(diff)
goto 111
110 continue
c Close datefile
close(10)
c Exit point
112 continue
c ---------------------------------------------------------------------
c Convert times to a list of dates
c ---------------------------------------------------------------------
if ( mode.ne.'-todate' ) goto 122
c Extract reference date
read(refdate( 1: 4),*) year1
read(refdate( 5: 6),*) month1
read(refdate( 7: 8),*) day1
read(refdate(10:11),*) hour1
read(refdate(12:13),*) min1
c Loop through the date file
open(10,file=datefile)
121 read(10,*,end=120) time
c Calculate the new date
date1(1) = year1
date1(2) = month1
date1(3) = day1
date1(4) = hour1
date1(5) = 0
call newdate(date1,time,date2)
call datestring(datestr,date2(1),date2(2),date2(3),date2(4) )
c Write it to screen
write(*,'(a11)') trim(datestr)
goto 121
120 continue
c Close datefile
close(10)
c Exit point
122 continue
c ---------------------------------------------------------------------
c Extract all dates which are only in one datefile
c ---------------------------------------------------------------------
if ( mode.ne.'-onlyin1' ) goto 134
c Set reference date
date1(1) = 1979
date1(2) = 1
date1(3) = 1
date1(4) = 0
date1(5) = 0
c Open the output file
if ( datefile.ne.'/dev/stdout') then
open(30,file=datefile)
endif
c Loop through the input date files
open(10,file=datefile1)
open(20,file=datefile2)
c Loop through both date files
state = 0
oldstamp1 = 0
oldstamp2 = 0
131 if ( (state.eq.1).or.(state.eq.0) ) then
read(10,*,end=133) datestr1
endif
if ( (state.eq.2).or.(state.eq.0) ) then
read(20,*,end=130) datestr2
endif
c Get time stamp for both date strings
if ( (state.eq.1).or.(state.eq.0) ) then
read(datestr1( 1: 4),*) year2
read(datestr1( 5: 6),*) month2
read(datestr1( 7: 8),*) day2
read(datestr1(10:11),*) hour2
date2(1) = year2
date2(2) = month2
date2(3) = day2
date2(4) = hour2
date2(5) = 0
call timediff(date2,date1,diff)
timestamp1 = nint( diff )
if ( timestamp1.lt.oldstamp1 ) then
print*,' ERROR: datelist must be ordered ',trim(datefile1)
stop
else
oldstamp1 = timestamp1
endif
endif
if ( (state.eq.1).or.(state.eq.0) ) then
read(datestr2( 1: 4),*) year2
read(datestr2( 5: 6),*) month2
read(datestr2( 7: 8),*) day2
read(datestr2(10:11),*) hour2
date2(1) = year2
date2(2) = month2
date2(3) = day2
date2(4) = hour2
date2(5) = 0
call timediff(date2,date1,diff)
timestamp2 = nint( diff )
if ( timestamp2.lt.oldstamp2 ) then
print*,' ERROR: datelist must be ordered ',trim(datefile2)
stop
else
oldstamp2 = timestamp2
endif
endif
c Write output and set new state
if ( timestamp1.gt.timestamp2 ) then
state = 2
c print*,trim(datestr1)//'.'//trim(datestr2)//' >'
else if ( timestamp1.lt.timestamp2 ) then
state = 1
if ( datefile.ne.'/dev/stdout') then
write(30,*) datestr1
else
write(*,*) datestr1
endif
c print*,trim(datestr1)//'.'//trim(datestr2)//' -> out'
else if (timestamp1.eq.timestamp2 ) then
state = 0
c print*,trim(datestr1)//'.'//trim(datestr2)//' ='
endif
goto 131
c Exit point for parallel reading through files
130 continue
c Write remaining part of datefile 1
132 continue
read(10,*,end=133) datestr1
if ( datefile.ne.'/dev/stdout') then
write(30,*) datestr1
else
write(*,*) datestr1
endif
goto 132
133 continue
c Close datefile
close(10)
close(20)
close(30)
c Exit point
134 continue
c ---------------------------------------------------------------------
c End
c ---------------------------------------------------------------------
end