/usr/share/perl5/Date/Manip/Migration5to6.pod is in libdate-manip-perl 6.52-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 | # Copyright (c) 2009-2015 Sullivan Beck. All rights reserved.
# This program is free software; you can redistribute it and/or modify it
# under the same terms as Perl itself.
=pod
=head1 NAME
Date::Manip::Migration5to6 - how to upgrade from 5.xx to 6.00
=head1 SYNOPSIS
When upgrading from Date::Manip 5.xx to 6.00, a few changes may be
necessary to your scripts.
The L<Date::Manip::Changes5to6> document lists in more detail the ways in
which Date::Manip changed, but very few of these actually entail
changes to your script.
It should be noted that once the changes are made to your script,
it will no longer run correctly in 5.xx.
=head1 NECESSARY AND SUGGESTED CHANGES
The following changes are necessary, or strongly suggested:
=over 4
=item B<Reading config files with Date_Init>
If you use Date_Init to read any config files (if you do business mode
calculations, you probably do), you should remove all of the following
config variables from your call to Date_Init:
GlobalCnf=FILE
PersonalCnf=FILE
PathSep=*
IgnoreGlobalCnf=*
PersonalCnfPath=*
and replace them with:
ConfigFile=FILE
where FILE is now the full path to a config file. Also, the ConfigFile
argument should be the first argument in Date_Init.
=item B<Date_ConvTZ>
The Date_ConvTZ function has changed. It should now take 3 arguments:
$date = Date_ConvTZ($date,$from,$to);
If C<$from> is not given, it defaults to the local time zone. If C<$to> is
not given, it defaults to the local time zone.
The date is converted from the C<$from> time zone into the C<$to>
time zone. Both should be any time zone (or alias) supported by
Date::Manip.
The old C<$errlevel> argument is no longer handled.
=item B<ConvTZ and TZ config variables>
If you use either the ConvTZ or TZ config variables, you should
replace them with either SetDate or ForceDate. See the
L<Date::Manip::Config> document for information.
The TZ variable will continue to work until Dec 2015 at which point
it will be removed.
=item B<Other deprecated config variables>
The following config variables have been deprecated, but will continue
to function (though they will be removed at a future date):
TZ (removed Mar 2016)
The following variables have been removed. If you use any of them,
you may need to modify your scripts:
IntCharSet
GlobalCnf
PersonalCnf
PathSep
IgnoreGlobalCnf
PersonalCnfPath
ConvTZ
Internal
TodayIsMidnight
DeltaSigns
UpdateCurrTZ
ResetWorkdDay
=item B<today, yesterday, tomorrow>
If you parse the strings "today", "yesterday", or "tomorrow" in order
to get the time now, or 24 hours in the past/future, this will no
longer work. These strings now refer strictly to the date (so "today"
is the current day at midnight, "yesterday" is the previous day at
midnight, etc.).
To get the time now, 24 hours ago, or 24 hours in the future, you
would need to parse the strings "now", "-24:00:00", or "+24:00:00"
respectively.
=item B<Do not use Memoize>
In 5.xx, it was documented that you could use the module Memoize to
speed up Date::Manip, especially when sorting dates.
This information is no longer accurate. Using Memoize in conjunction
with Date::Manip should have little impact on performance, and may
lead to incorrect results, especially if you change config variables.
Please refer to L<Date::Manip::Changes5to6/"GENERAL CHANGES"> for
more information.
=back
If you find other instances where it is necessary to modify your
script, please email me so that I can add that information to this
document.
=head1 BUGS AND QUESTIONS
Please refer to the L<Date::Manip::Problems> documentation for
information on submitting bug reports or questions to the author.
=head1 SEE ALSO
L<Date::Manip> - main module documentation
=head1 LICENSE
This script is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
=head1 AUTHOR
Sullivan Beck (sbeck@cpan.org)
=cut
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