File: compare-date

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#!/bin/csh -f
#
# COMPARE-DATE - compare code-date generated time stamps
#

set d1 = `expr $1 : '[^0-9]*\([0-9]*\)'`
set d2 = `expr $2 : '[^0-9]*\([0-9]*\)'`
set m1 = `expr $1 : '[^0-9]*[0-9]*.\([0-9]*\)'`
set m2 = `expr $2 : '[^0-9]*[0-9]*.\([0-9]*\)'`
set y1 = `expr $1 : '.*\.\(.*\)'`
set y2 = `expr $2 : '.*\.\(.*\)'`

# echo year $y1 $y2 month $m1 $m2 day $d1 $d2

if ($y1 == $y2) then
   if ($m1 == $m2) then
      if ($d1 == $d2) then
         exit(0)
      else if (`expr $d1 \< $d2`) then
         exit(-1)
      else
         exit(1)
      endif
   else if (`expr $m1 \< $m2`) then
      exit(-1)
   else
      exit(1)
   endif
else if (`expr $y1 \< $y2`) then
   exit(-1)
else
   exit(1)
endif