# $Id: ddiff1.awk 0.03 2000/03/20 00:00:03 tom Exp $ # # ddiff1.awk: Computes the minimum and maximum day lengths of a # definite location and prints these values, assigned # to variables, as the beginning of an AWK script, # which is used to create a Gcal location resource file. # # Any but default configuration could confuse this script. # It comes along with a UN*X script `ddiff' and a DOS batch `ddiff.bat' # which supports the correct usage. # # It is *not* guaranteed that this script works for any other call than # the one given above but it could easily be modified and extended for # using other special modes of operation. # # If you modify this script you have to rename the modified version. # # If you make any improvements I would like to hear from you. # But I do not promise any support. # # Copyright (c) 2000 Thomas Esken <esken@uni-muenster.de> # Im Hagenfeld 84 # D-48147 M"unster # GERMANY # # This software doesn't claim completeness, correctness or usability. # On principle I will not be liable for ANY damages or losses (implicit # or explicit), which result from using or handling my software. # If you use this software, you agree without any exception to this # agreement, which binds you LEGALLY !! # # This program is free software; you can redistribute it and/or modify # it under the terms of the `GNU General Public License' as published by # the `Free Software Foundation'; either version 2, or (at your option) # any later version. # # You should have received a copy of the `GNU General Public License' # along with this program; if not, write to the: # # # BEGIN { dmin = 99999 dmax = 0 } # # Main block. # { t = substr($3, 1, 2) * 3600 + substr($3, 4, 2) * 60 if (length($3) > 7) t += substr($3, 7, 6) if (dmax < t) dmax = t if (dmin > t) dmin = t } END { printf "BEGIN {\n dmin = %f;\n dmax = %f;\n", dmin, dmax }