1 | ;# ctime.pl is a simple Perl emulation for the well known ctime(3C) function.
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2 | #
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3 | # This library is no longer being maintained, and is included for backward
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4 | # compatibility with Perl 4 programs which may require it.
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5 | #
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6 | # In particular, this should not be used as an example of modern Perl
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7 | # programming techniques.
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8 | #
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9 | # Suggested alternative: the POSIX ctime function
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10 | ;#
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11 | ;# Waldemar Kebsch, Federal Republic of Germany, November 1988
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12 | ;# [email protected]
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13 | ;# Modified March 1990, Feb 1991 to properly handle timezones
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14 | ;# $RCSfile: ctime.pl,v $$Revision: 4.1 $$Date: 92/08/07 18:23:47 $
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15 | ;# Marion Hakanson ([email protected])
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16 | ;# Oregon Graduate Institute of Science and Technology
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17 | ;#
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18 | ;# usage:
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19 | ;#
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20 | ;# #include <ctime.pl> # see the -P and -I option in perl.man
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21 | ;# $Date = &ctime(time);
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22 |
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23 | CONFIG: {
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24 | package ctime;
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25 |
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26 | @DoW = ('Sun','Mon','Tue','Wed','Thu','Fri','Sat');
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27 | @MoY = ('Jan','Feb','Mar','Apr','May','Jun',
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28 | 'Jul','Aug','Sep','Oct','Nov','Dec');
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29 | }
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30 |
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31 | sub ctime {
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32 | package ctime;
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33 |
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34 | local($time) = @_;
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35 | local($[) = 0;
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36 | local($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst);
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37 |
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38 | # Determine what time zone is in effect.
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39 | # Use GMT if TZ is defined as null, local time if TZ undefined.
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40 | # There's no portable way to find the system default timezone.
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41 |
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42 | $TZ = defined($ENV{'TZ'}) ? ( $ENV{'TZ'} ? $ENV{'TZ'} : 'GMT' ) : '';
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43 | ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst) =
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44 | ($TZ eq 'GMT') ? gmtime($time) : localtime($time);
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45 |
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46 | # Hack to deal with 'PST8PDT' format of TZ
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47 | # Note that this can't deal with all the esoteric forms, but it
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48 | # does recognize the most common: [:]STDoff[DST[off][,rule]]
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49 |
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50 | if($TZ=~/^([^:\d+\-,]{3,})([+-]?\d{1,2}(:\d{1,2}){0,2})([^\d+\-,]{3,})?/){
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51 | $TZ = $isdst ? $4 : $1;
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52 | }
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53 | $TZ .= ' ' unless $TZ eq '';
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54 |
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55 | $year += 1900;
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56 | sprintf("%s %s %2d %2d:%02d:%02d %s%4d\n",
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57 | $DoW[$wday], $MoY[$mon], $mday, $hour, $min, $sec, $TZ, $year);
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58 | }
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59 | 1;
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