5 $VERSION = sprintf "%.6f", substr(q$Rev: 1387 $,4)/1000000 + 5.4;
7 # CPAN::Version::vcmp courtesy Jost Krieger
11 CPAN->debug("l[$l] r[$r]") if $CPAN::DEBUG;
13 return 0 if $l eq $r; # short circuit for quicker success
18 CPAN->debug("l[$l] r[$r]") if $CPAN::DEBUG;
20 next unless tr/.// > 1;
22 1 while s/\.0+(\d)/.$1/; # remove leading zeroes per group
24 CPAN->debug("l[$l] r[$r]") if $CPAN::DEBUG;
25 if ($l=~/^v/ <=> $r=~/^v/) {
28 $_ = $self->float2vv($_);
31 CPAN->debug("l[$l] r[$r]") if $CPAN::DEBUG;
37 $lvstring = $self->vstring($l);
38 $rvstring = $self->vstring($r);
39 CPAN->debug(sprintf "lv[%vd] rv[%vd]", $lvstring, $rvstring) if $CPAN::DEBUG;
43 ($l ne "undef") <=> ($r ne "undef")
45 $lvstring cmp $rvstring
55 $self->vcmp($l,$r) > 0;
60 0 + ($self->vcmp($l,$r) < 0);
65 $n =~ s/^v// or die "CPAN::Version::vstring() called with invalid arg [$n]";
66 pack "U*", split /\./, $n;
69 # vv => visible vstring
74 my($mantissa) = $n =~ /\.(\d{1,12})/; # limit to 12 digits to limit
75 # architecture influence
77 $mantissa .= "0" while length($mantissa)%3;
80 $mantissa =~ s/(\d{1,3})// or
81 die "Panic: length>0 but not a digit? mantissa[$mantissa]";
84 # warn "n[$n]ret[$ret]";
90 $n =~ /^([\w\-\+\.]+)/;
92 return $1 if defined $1 && length($1)>0;
93 # if the first user reaches version v43, he will be treated as "+".
94 # We'll have to decide about a new rule here then, depending on what
95 # will be the prevailing versioning behavior then.
97 if ($] < 5.006) { # or whenever v-strings were introduced
98 # we get them wrong anyway, whatever we do, because 5.005 will
99 # have already interpreted 0.2.4 to be "0.24". So even if he
100 # indexer sends us something like "v0.2.4" we compare wrongly.
102 # And if they say v1.2, then the old perl takes it as "v12"
104 if (defined $CPAN::Frontend) {
105 $CPAN::Frontend->mywarn("Suspicious version string seen [$n]\n");
107 warn("Suspicious version string seen [$n]\n");
111 my $better = sprintf "v%vd", $n;
112 CPAN->debug("n[$n] better[$better]") if $CPAN::DEBUG;
122 CPAN::Version - utility functions to compare CPAN versions
128 CPAN::Version->vgt("1.1","1.1.1"); # 1 bc. 1.1 > 1.001001
130 CPAN::Version->vlt("1.1","1.1"); # 0 bc. 1.1 not < 1.1
132 CPAN::Version->vcmp("1.1","1.1.1"); # 1 bc. first is larger
134 CPAN::Version->vcmp("1.1.1","1.1"); # -1 bc. first is smaller
136 CPAN::Version->readable(v1.2.3); # "v1.2.3"
138 CPAN::Version->vstring("v1.2.3"); # v1.2.3
140 CPAN::Version->float2vv(1.002003); # "v1.2.3"
144 This module mediates between some version that perl sees in a package
145 and the version that is published by the CPAN indexer.
147 It's only written as a helper module for both CPAN.pm and CPANPLUS.pm.
149 As it stands it predates version.pm but has the same goal: make
150 version strings visible and comparable.
154 This program is free software; you can redistribute it and/or
155 modify it under the same terms as Perl itself.
161 # cperl-indent-level: 2