| 1 | ################################################################################ |
1 | ################################################################################ |
| 2 | # WeBWorK Online Homework Delivery System |
2 | # WeBWorK Online Homework Delivery System |
| 3 | # Copyright © 2000-2007 The WeBWorK Project, http://openwebwork.sf.net/ |
3 | # Copyright © 2000-2007 The WeBWorK Project, http://openwebwork.sf.net/ |
| 4 | # $CVSHeader: pg/lib/PGcore.pm,v 1.4 2010/05/15 18:41:23 gage Exp $ |
4 | # $CVSHeader: pg/lib/PGcore.pm,v 1.5 2010/05/25 22:22:27 gage Exp $ |
| 5 | # |
5 | # |
| 6 | # This program is free software; you can redistribute it and/or modify it under |
6 | # This program is free software; you can redistribute it and/or modify it under |
| 7 | # the terms of either: (a) the GNU General Public License as published by the |
7 | # the terms of either: (a) the GNU General Public License as published by the |
| 8 | # Free Software Foundation; either version 2, or (at your option) any later |
8 | # Free Software Foundation; either version 2, or (at your option) any later |
| 9 | # version, or (b) the "Artistic License" which comes with this package. |
9 | # version, or (b) the "Artistic License" which comes with this package. |
| … | |
… | |
| 15 | ################################################################################ |
15 | ################################################################################ |
| 16 | package PGcore; |
16 | package PGcore; |
| 17 | |
17 | |
| 18 | use strict; |
18 | use strict; |
| 19 | BEGIN { |
19 | BEGIN { |
| 20 | use Exporter; |
20 | use Exporter 'import'; |
| 21 | our @EXPORT_OK = qw(not_null); |
21 | our @EXPORT_OK = qw(not_null); |
| 22 | } |
22 | } |
| 23 | our $internal_debug_messages = []; |
23 | our $internal_debug_messages = []; |
| 24 | |
24 | |
| 25 | our @ISA = qw(Exporter); |
25 | |
| 26 | use PGanswergroup; |
26 | use PGanswergroup; |
| 27 | use PGresponsegroup; |
27 | use PGresponsegroup; |
| 28 | use PGrandom; |
28 | use PGrandom; |
| 29 | use PGalias; |
29 | use PGalias; |
| 30 | use PGloadfiles; |
30 | use PGloadfiles; |
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