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File:C4/ClassSortRoutine/Generic.pm
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1package C4::ClassSortRoutine::Generic;
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3# Copyright (C) 2007 LibLime
4#
5# This file is part of Koha.
6#
7# Koha is free software; you can redistribute it and/or modify it under the
8# terms of the GNU General Public License as published by the Free Software
9# Foundation; either version 2 of the License, or (at your option) any later
10# version.
11#
12# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
13# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
14# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
15#
16# You should have received a copy of the GNU General Public License along
17# with Koha; if not, write to the Free Software Foundation, Inc.,
18# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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use strict;
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use warnings;
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use vars qw($VERSION);
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25# set the version for version checking
26$VERSION = 3.00;
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=head1 NAME 

C4::ClassSortRoutine::Generic - generic call number sorting key routine

=head1 SYNOPSIS

use C4::ClassSortRoutine;

my $cn_sort = GetClassSortKey('Generic', $cn_class, $cn_item);

=head1 FUNCTIONS

=head2 get_class_sort_key

  my $cn_sort = C4::ClassSortRoutine::Generic::Generic($cn_class, $cn_item);

Generates sorting key using the following rules:

* Concatenates class and item part.
* Removes leading and trailing whitespace.
* Converts each run of whitespace to an underscore.
* Converts to upper-case and removes non-alphabetical, non-numeric, non-underscore characters.

=cut
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53sub get_class_sort_key {
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    my ($cn_class, $cn_item) = @_;
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    $cn_class = '' unless defined $cn_class;
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    $cn_item = '' unless defined $cn_item;
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    my $key = uc "$cn_class $cn_item";
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    $key =~ s/^\s+//;
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    $key =~ s/\s+$//;
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    $key =~ s/\s+/_/g;
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    $key =~ s/[^\p{IsAlnum}_]//g;
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    return $key;
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65}
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671;
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=head1 AUTHOR

Koha Development Team <http://koha-community.org/>

=cut
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