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73 lines
1.7 KiB
73 lines
1.7 KiB
package C4::ClassSortRoutine::Generic;
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# Copyright (C) 2007 LibLime
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#
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# This file is part of Koha.
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#
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# Koha is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# Koha is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Koha; if not, see <http://www.gnu.org/licenses>.
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use strict;
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use warnings;
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use vars qw();
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# set the version for version checking
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=head1 NAME
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C4::ClassSortRoutine::Generic - generic call number sorting key routine
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=head1 SYNOPSIS
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use C4::ClassSortRoutine;
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my $cn_sort = GetClassSortKey('Generic', $cn_class, $cn_item);
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=head1 FUNCTIONS
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=head2 get_class_sort_key
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my $cn_sort = C4::ClassSortRoutine::Generic::Generic($cn_class, $cn_item);
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Generates sorting key using the following rules:
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* Concatenates class and item part.
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* Removes leading and trailing whitespace.
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* Converts each run of whitespace to an underscore.
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* Converts to upper-case and removes non-alphabetical, non-numeric, non-underscore characters.
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=cut
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sub get_class_sort_key {
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my ($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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}
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1;
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=head1 AUTHOR
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Koha Development Team <http://koha-community.org/>
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=cut
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