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
|
#line 1
package Sort::Versions;
$Sort::Versions::VERSION = '1.62';
# Copyright (c) 1996, Kenneth J. Albanowski. All rights reserved. This
# program is free software; you can redistribute it and/or modify it under
# the same terms as Perl itself.
use 5.006;
use strict;
use warnings;
require Exporter;
our @ISA = qw(Exporter);
our @EXPORT = qw(&versions &versioncmp);
our @EXPORT_OK = qw();
sub versioncmp ($$) {
my @A = ($_[0] =~ /([-.]|\d+|[^-.\d]+)/g);
my @B = ($_[1] =~ /([-.]|\d+|[^-.\d]+)/g);
my ($A, $B);
while (@A and @B) {
$A = shift @A;
$B = shift @B;
if ($A eq '-' and $B eq '-') {
next;
} elsif ( $A eq '-' ) {
return -1;
} elsif ( $B eq '-') {
return 1;
} elsif ($A eq '.' and $B eq '.') {
next;
} elsif ( $A eq '.' ) {
return -1;
} elsif ( $B eq '.' ) {
return 1;
} elsif ($A =~ /^\d+$/ and $B =~ /^\d+$/) {
if ($A =~ /^0/ || $B =~ /^0/) {
return $A cmp $B if $A cmp $B;
} else {
return $A <=> $B if $A <=> $B;
}
} else {
$A = uc $A;
$B = uc $B;
return $A cmp $B if $A cmp $B;
}
}
@A <=> @B;
}
sub versions () {
my $callerpkg = (caller)[0];
my $caller_a = "${callerpkg}::a";
my $caller_b = "${callerpkg}::b";
no strict 'refs';
return versioncmp($$caller_a, $$caller_b);
}
#line 159
1;
|
