C4/ClassSortRoutine/LCC.pm

   1 package C4::ClassSortRoutine::LCC;
   2
   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.
  19
  20 use strict;
  21 use warnings;
  22
  23 use vars qw($VERSION);
  24
  25 # set the version for version checking
  26 $VERSION = 3.00;
  27
  28 =head1 NAME
  29
  30 C4::ClassSortRoutine::LCC - generic call number sorting key routine
  31
  32 =head1 SYNOPSIS
  33
  34 use C4::ClassSortRoutine;
  35
  36 my $cn_sort = GetClassSortKey('LCC', $cn_class, $cn_item);
  37
  38 =head1 FUNCTIONS
  39
  40 =head2 get_class_sort_key
  41
  42   my $cn_sort = C4::ClassSortRoutine::LCC::LCC($cn_class, $cn_item);
  43
  44 Generates sorting key for LC call numbers.
  45
  46 =cut
  47
  48 sub get_class_sort_key {
  49     my ($cn_class, $cn_item) = @_;
  50
  51     $cn_class = '' unless defined $cn_class;
  52     $cn_item  = '' unless defined $cn_item;
  53     my $key = uc "$cn_class $cn_item";
  54     $key =~ s/^\s+//;
  55     $key =~ s/\s+$//;
  56     $key =~ s/^[^\p{IsAlnum}\s.]//g;
  57     $key =~ s/^([A-Z]+)/$1 /;
  58     $key =~ s/(\.[A-Z])/ $1/g;
  59     # handle first digit group
  60     $key =~ s/(\d+)/sprintf("%-05.5d", $1)/xe;
  61     $key =~ s/\s+/_/g;
  62     $key =~ s/\./_/g;
  63     $key =~ s/__/_/g;
  64     $key =~ s/[^\p{IsAlnum}_]//g;
  65
  66     return $key;
  67
  68 }
  69
  70 1;
  71
  72 =head1 AUTHOR
  73
  74 Koha Developement team <info@koha.org>
  75
  76 =cut
  77