1 #--------------------------------------------------------------------------#
2 # This is a modified copy of version.pm 0.9909, bundled exclusively for
3 # use by ExtUtils::Makemaker and its dependencies to bootstrap when
4 # version.pm is not available. It should not be used by ordinary modules.
5 #--------------------------------------------------------------------------#
7 package ExtUtils::MakeMaker::charstar;
8 # a little helper class to emulate C char* semantics in Perl
9 # so that prescan_version can use the same code as in C
26 my ($self, $string) = @_;
27 my $class = ref($self) || $self;
30 string => [split(//,$string)],
33 return bless $obj, $class;
38 my $last = $#{$self->{string}};
39 my $curr = $self->{current};
40 if ($curr >= 0 && $curr <= $last) {
41 return $self->{string}->[$curr];
59 my ($self, $offset) = @_;
60 my $rself = $self->clone;
61 $rself->{current} += $offset;
66 my ($self, $offset) = @_;
67 my $rself = $self->clone;
68 $rself->{current} -= $offset;
73 my ($left, $right, $swapped) = @_;
74 my $char = $left->thischar();
75 return $char * $right;
79 my ($left, $right, $swapped) = @_;
80 unless (ref($right)) { # not an object already
81 $right = $left->new($right);
83 return $left->{current} <=> $right->{current};
87 my ($left, $right, $swapped) = @_;
88 unless (ref($right)) { # not an object already
89 if (length($right) == 1) { # comparing single character only
90 return $left->thischar cmp $right;
92 $right = $left->new($right);
94 return $left->currstr cmp $right->currstr;
99 my $char = $self->thischar;
100 return ($char ne '');
104 my ($left, $right, $swapped) = @_;
106 string => [@{$left->{string}}],
107 current => $left->{current},
109 return bless $right, ref($left);
114 my $curr = $self->{current};
115 my $last = $#{$self->{string}};
116 if (defined($s) && $s->{current} < $last) {
117 $last = $s->{current};
120 my $string = join('', @{$self->{string}}[$curr..$last]);
124 package ExtUtils::MakeMaker::version::vpp;
130 use vars qw($VERSION $CLASS @ISA $LAX $STRICT);
132 $CLASS = 'ExtUtils::MakeMaker::version::vpp';
134 require ExtUtils::MakeMaker::version::regex;
135 *ExtUtils::MakeMaker::version::vpp::is_strict = \&ExtUtils::MakeMaker::version::regex::is_strict;
136 *ExtUtils::MakeMaker::version::vpp::is_lax = \&ExtUtils::MakeMaker::version::regex::is_lax;
137 *LAX = \$ExtUtils::MakeMaker::version::regex::LAX;
138 *STRICT = \$ExtUtils::MakeMaker::version::regex::STRICT;
162 sub enabled {return $^W;}
171 # Set up any derived class
172 unless ($class eq $CLASS) {
174 *{$class.'::declare'} = \&{$CLASS.'::declare'};
175 *{$class.'::qv'} = \&{$CLASS.'::qv'};
179 if (@_) { # any remaining terms are arguments
180 map { $args{$_} = 1 } @_
182 else { # no parameters at all on use line
186 'UNIVERSAL::VERSION' => 1,
190 my $callpkg = caller();
192 if (exists($args{declare})) {
193 *{$callpkg.'::declare'} =
194 sub {return $class->declare(shift) }
195 unless defined(&{$callpkg.'::declare'});
198 if (exists($args{qv})) {
200 sub {return $class->qv(shift) }
201 unless defined(&{$callpkg.'::qv'});
204 if (exists($args{'UNIVERSAL::VERSION'})) {
207 = \&{$CLASS.'::_VERSION'};
210 if (exists($args{'VERSION'})) {
211 *{$callpkg.'::VERSION'} = \&{$CLASS.'::_VERSION'};
214 if (exists($args{'is_strict'})) {
215 *{$callpkg.'::is_strict'} = \&{$CLASS.'::is_strict'}
216 unless defined(&{$callpkg.'::is_strict'});
219 if (exists($args{'is_lax'})) {
220 *{$callpkg.'::is_lax'} = \&{$CLASS.'::is_lax'}
221 unless defined(&{$callpkg.'::is_lax'});
225 my $VERSION_MAX = 0x7FFFFFFF;
227 # implement prescan_version as closely to the C version as possible
228 use constant TRUE => 1;
229 use constant FALSE => 0;
232 my ($char) = shift->thischar();
233 return ($char =~ /\d/);
237 my ($char) = shift->thischar();
238 return ($char =~ /[a-zA-Z]/);
242 my ($char) = shift->thischar();
243 return ($char =~ /\s/);
247 my ($s, $errstr, $error) = @_;
254 sub prescan_version {
255 my ($s, $strict, $errstr, $sqv, $ssaw_decimal, $swidth, $salpha) = @_;
256 my $qv = defined $sqv ? $$sqv : FALSE;
257 my $saw_decimal = defined $ssaw_decimal ? $$ssaw_decimal : 0;
258 my $width = defined $swidth ? $$swidth : 3;
259 my $alpha = defined $salpha ? $$salpha : FALSE;
263 if ($qv && isDIGIT($d)) {
264 goto dotted_decimal_version;
267 if ($d eq 'v') { # explicit v-string
272 else { # degenerate v-string
274 return BADVERSION($s,$errstr,"Invalid version format (dotted-decimal versions require at least three parts)");
277 dotted_decimal_version:
278 if ($strict && $d eq '0' && isDIGIT($d+1)) {
279 # no leading zeros allowed
280 return BADVERSION($s,$errstr,"Invalid version format (no leading zeros)");
283 while (isDIGIT($d)) { # integer part
290 $d++; # decimal point
296 return BADVERSION($s,$errstr,"Invalid version format (dotted-decimal versions require at least three parts)");
299 goto version_prescan_finish;
306 while (isDIGIT($d)) { # just keep reading
308 while (isDIGIT($d)) {
310 # maximum 3 digits between decimal
311 if ($strict && $j > 3) {
312 return BADVERSION($s,$errstr,"Invalid version format (maximum 3 digits between decimals)");
317 return BADVERSION($s,$errstr,"Invalid version format (no underscores)");
320 return BADVERSION($s,$errstr,"Invalid version format (multiple underscores)");
327 return BADVERSION($s,$errstr,"Invalid version format (underscores before decimal)");
332 elsif (!isDIGIT($d)) {
338 if ($strict && $i < 2) {
340 return BADVERSION($s,$errstr,"Invalid version format (dotted-decimal versions require at least three parts)");
343 } # end if dotted-decimal
347 # special $strict case for leading '.' or '0'
350 return BADVERSION($s,$errstr,"Invalid version format (0 before decimal required)");
352 if ($d eq '0' && isDIGIT($d+1)) {
353 return BADVERSION($s,$errstr,"Invalid version format (no leading zeros)");
357 # and we never support negative version numbers
359 return BADVERSION($s,$errstr,"Invalid version format (negative version number)");
362 # consume all of the integer part
363 while (isDIGIT($d)) {
367 # look for a fractional part
369 # we found it, so consume it
373 elsif (!$d || $d eq ';' || isSPACE($d) || $d eq '}') {
376 return BADVERSION($s,$errstr,"Invalid version format (version required)");
378 # found just an integer
379 goto version_prescan_finish;
382 # didn't find either integer or period
383 return BADVERSION($s,$errstr,"Invalid version format (non-numeric data)");
386 # underscore can't come after integer part
388 return BADVERSION($s,$errstr,"Invalid version format (no underscores)");
390 elsif (isDIGIT($d+1)) {
391 return BADVERSION($s,$errstr,"Invalid version format (alpha without decimal)");
394 return BADVERSION($s,$errstr,"Invalid version format (misplaced underscore)");
398 # anything else after integer part is just invalid data
399 return BADVERSION($s,$errstr,"Invalid version format (non-numeric data)");
402 # scan the fractional part after the decimal point
403 if ($d && !isDIGIT($d) && ($strict || ! ($d eq ';' || isSPACE($d) || $d eq '}') )) {
404 # $strict or lax-but-not-the-end
405 return BADVERSION($s,$errstr,"Invalid version format (fractional part required)");
408 while (isDIGIT($d)) {
410 if ($d eq '.' && isDIGIT($d-1)) {
412 return BADVERSION($s,$errstr,"Invalid version format (underscores before decimal)");
415 return BADVERSION($s,$errstr,"Invalid version format (dotted-decimal versions must begin with 'v')");
417 $d = $s; # start all over again
419 goto dotted_decimal_version;
423 return BADVERSION($s,$errstr,"Invalid version format (no underscores)");
426 return BADVERSION($s,$errstr,"Invalid version format (multiple underscores)");
428 if ( ! isDIGIT($d+1) ) {
429 return BADVERSION($s,$errstr,"Invalid version format (misplaced underscore)");
438 version_prescan_finish:
439 while (isSPACE($d)) {
443 if ($d && !isDIGIT($d) && (! ($d eq ';' || $d eq '}') )) {
444 # trailing non-numeric data
445 return BADVERSION($s,$errstr,"Invalid version format (non-numeric data)");
451 if (defined $swidth) {
454 if (defined $ssaw_decimal) {
455 $$ssaw_decimal = $saw_decimal;
457 if (defined $salpha) {
464 my ($s, $rv, $qv) = @_;
475 $s = new ExtUtils::MakeMaker::charstar $s;
477 while (isSPACE($s)) { # leading whitespace is OK
481 $last = prescan_version($s, FALSE, \$errstr, \$qv, \$saw_decimal,
485 # 'undef' is a special case and not an error
486 if ( $s ne 'undef') {
488 Carp::croak($errstr);
502 $$rv->{alpha} = $alpha;
504 if ( !$qv && $width < 3 ) {
505 $$rv->{width} = $width;
508 while (isDIGIT($pos)) {
511 if (!isALPHA($pos)) {
517 # this is atoi() that delimits on underscores
522 # the following if() will only be true after the decimal
523 # point of a version originally created with a bare
524 # floating point number, i.e. not quoted in any way
526 if ( !$qv && $s > $start && $saw_decimal == 1 ) {
528 while ( $s < $end ) {
532 if ( (abs($orev) > abs($rev))
533 || (abs($rev) > $VERSION_MAX )) {
534 warn("Integer overflow in version %d",
547 while (--$end >= $s) {
549 $rev += $end * $mult;
551 if ( (abs($orev) > abs($rev))
552 || (abs($rev) > $VERSION_MAX )) {
553 warn("Integer overflow in version");
568 elsif ( $pos eq '.' ) {
571 elsif ( $pos eq '_' && isDIGIT($pos+1) ) {
574 elsif ( $pos eq ',' && isDIGIT($pos+1) ) {
577 elsif ( isDIGIT($pos) ) {
585 while ( isDIGIT($pos) ) {
591 while ( ( isDIGIT($pos) || $pos eq '_' ) && $digits < 3 ) {
600 if ( $qv ) { # quoted versions always get at least three terms
602 # This for loop appears to trigger a compiler bug on OS X, as it
603 # loops infinitely. Yes, len is negative. No, it makes no sense.
604 # Compiler in question is:
605 # gcc version 3.3 20030304 (Apple Computer, Inc. build 1640)
606 # for ( len = 2 - len; len > 0; len-- )
607 # av_push(MUTABLE_AV(sv), newSViv(0));
615 # need to save off the current version string for later
617 $$rv->{original} = "v.Inf";
620 elsif ( $s > $start ) {
621 $$rv->{original} = $start->currstr($s);
622 if ( $qv && $saw_decimal == 1 && $start ne 'v' ) {
623 # need to insert a v to be consistent
624 $$rv->{original} = 'v' . $$rv->{original};
628 $$rv->{original} = '0';
632 # And finally, store the AV in the hash
633 $$rv->{version} = \@av;
635 # fix RT#19517 - special case 'undef' as string
645 unless (defined $class or $#_ > 1) {
647 Carp::croak('Usage: version::new(class, version)');
650 my $self = bless ({}, ref ($class) || $class);
653 if ( $#_ == 1 ) { # must be CVS-style
656 my $value = pop; # always going to be the last element
658 if ( ref($value) && eval('$value->isa("version")') ) {
659 # Can copy the elements directly
660 $self->{version} = [ @{$value->{version} } ];
661 $self->{qv} = 1 if $value->{qv};
662 $self->{alpha} = 1 if $value->{alpha};
663 $self->{original} = ''.$value->{original};
667 if ( not defined $value or $value =~ /^undef$/ ) {
668 # RT #19517 - special case for undef comparison
669 # or someone forgot to pass a value
670 push @{$self->{version}}, 0;
671 $self->{original} = "0";
676 if (ref($value) =~ m/ARRAY|HASH/) {
678 Carp::croak("Invalid version format (non-numeric data)");
681 $value = _un_vstring($value);
683 if ($Config{d_setlocale} && eval { require POSIX } ) {
685 my $currlocale = POSIX::setlocale(&POSIX::LC_ALL);
687 # if the current locale uses commas for decimal points, we
688 # just replace commas with decimal places, rather than changing
690 if ( POSIX::localeconv()->{decimal_point} eq ',' ) {
695 # exponential notation
696 if ( $value =~ /\d+.?\d*e[-+]?\d+/ ) {
697 $value = sprintf("%.9f",$value);
698 $value =~ s/(0+)$//; # trim trailing zeros
701 my $s = scan_version($value, \$self, $qv);
703 if ($s) { # must be something left over
704 warn("Version string '%s' contains invalid data; "
705 ."ignoring: '%s'", $value, $s);
715 unless (_verify($self)) {
717 Carp::croak("Invalid version object");
719 my $width = $self->{width} || 3;
720 my $alpha = $self->{alpha} || "";
721 my $len = $#{$self->{version}};
722 my $digit = $self->{version}[0];
723 my $string = sprintf("%d.", $digit );
725 for ( my $i = 1 ; $i < $len ; $i++ ) {
726 $digit = $self->{version}[$i];
728 my $denom = 10**(3-$width);
729 my $quot = int($digit/$denom);
730 my $rem = $digit - ($quot * $denom);
731 $string .= sprintf("%0".$width."d_%d", $quot, $rem);
734 $string .= sprintf("%03d", $digit);
739 $digit = $self->{version}[$len];
740 if ( $alpha && $width == 3 ) {
743 $string .= sprintf("%0".$width."d", $digit);
747 $string .= sprintf("000");
755 unless (_verify($self)) {
757 Carp::croak("Invalid version object");
759 my $alpha = $self->{alpha} || "";
760 my $len = $#{$self->{version}};
761 my $digit = $self->{version}[0];
762 my $string = sprintf("v%d", $digit );
764 for ( my $i = 1 ; $i < $len ; $i++ ) {
765 $digit = $self->{version}[$i];
766 $string .= sprintf(".%d", $digit);
770 $digit = $self->{version}[$len];
772 $string .= sprintf("_%0d", $digit);
775 $string .= sprintf(".%0d", $digit);
780 for ( $len = 2 - $len; $len != 0; $len-- ) {
781 $string .= sprintf(".%0d", 0);
790 unless (_verify($self)) {
792 Carp::croak("Invalid version object");
794 return exists $self->{original}
803 my ($left,$right,$swap) = @_;
804 my $class = ref($left);
805 unless ( UNIVERSAL::isa($right, $class) ) {
806 $right = $class->new($right);
810 ($left, $right) = ($right, $left);
812 unless (_verify($left)) {
814 Carp::croak("Invalid version object");
816 unless (_verify($right)) {
818 Carp::croak("Invalid version format");
820 my $l = $#{$left->{version}};
821 my $r = $#{$right->{version}};
822 my $m = $l < $r ? $l : $r;
823 my $lalpha = $left->is_alpha;
824 my $ralpha = $right->is_alpha;
827 while ( $i <= $m && $retval == 0 ) {
828 $retval = $left->{version}[$i] <=> $right->{version}[$i];
832 # tiebreaker for alpha with identical terms
835 && $left->{version}[$m] == $right->{version}[$m]
836 && ( $lalpha || $ralpha ) ) {
838 if ( $lalpha && !$ralpha ) {
841 elsif ( $ralpha && !$lalpha) {
846 # possible match except for trailing 0's
847 if ( $retval == 0 && $l != $r ) {
849 while ( $i <= $r && $retval == 0 ) {
850 if ( $right->{version}[$i] != 0 ) {
851 $retval = -1; # not a match after all
857 while ( $i <= $l && $retval == 0 ) {
858 if ( $left->{version}[$i] != 0 ) {
859 $retval = +1; # not a match after all
871 return vcmp($self,$self->new("0"),1);
876 Carp::croak("operation not supported with version object");
881 return (exists $self->{alpha});
888 $class = ref($value) || $value;
892 $value = _un_vstring($value);
893 $value = 'v'.$value unless $value =~ /(^v|\d+\.\d+\.\d)/;
894 my $obj = $CLASS->new($value);
895 return bless $obj, $class;
902 return (exists $self->{qv});
909 && eval { exists $self->{version} }
910 && ref($self->{version}) eq 'ARRAY'
919 sub _is_non_alphanumeric {
921 $s = new ExtUtils::MakeMaker::charstar $s;
923 return 0 if isSPACE($s); # early out
924 return 1 unless (isALPHA($s) || isDIGIT($s) || $s =~ /[.-]/);
933 if ( length($value) >= 3 && $value !~ /[._]/
934 && _is_non_alphanumeric($value)) {
936 if ( $] ge 5.008_001 ) {
937 $tvalue = _find_magic_vstring($value);
938 $value = $tvalue if length $tvalue;
940 elsif ( $] ge 5.006_000 ) {
941 $tvalue = sprintf("v%vd",$value);
942 if ( $tvalue =~ /^v\d+(\.\d+){2,}$/ ) {
951 sub _find_magic_vstring {
955 my $sv = B::svref_2object(\$value);
956 my $magic = ref($sv) eq 'B::PVMG' ? $sv->MAGIC : undef;
958 if ( $magic->TYPE eq 'V' ) {
959 $tvalue = $magic->PTR;
960 $tvalue =~ s/^v?(.+)$/v$1/;
964 $magic = $magic->MOREMAGIC;
971 my ($obj, $req) = @_;
972 my $class = ref($obj) || $obj;
975 if ( exists $INC{"$class.pm"} and not %{"$class\::"} and $] >= 5.008) {
976 # file but no package
978 Carp::croak( "$class defines neither package nor VERSION"
979 ."--version check failed");
982 my $version = eval "\$$class\::VERSION";
983 if ( defined $version ) {
984 local $^W if $] <= 5.008;
985 $version = ExtUtils::MakeMaker::version::vpp->new($version);
988 if ( defined $req ) {
989 unless ( defined $version ) {
992 ? "$class version $req required--this is only version "
993 : "$class does not define \$$class\::VERSION"
994 ."--version check failed";
996 if ( $ENV{VERSION_DEBUG} ) {
1004 $req = ExtUtils::MakeMaker::version::vpp->new($req);
1006 if ( $req > $version ) {
1008 if ( $req->is_qv ) {
1010 sprintf ("%s version %s required--".
1011 "this is only version %s", $class,
1012 $req->normal, $version->normal)
1017 sprintf ("%s version %s required--".
1018 "this is only version %s", $class,
1019 $req->stringify, $version->stringify)
1025 return defined $version ? $version->stringify : undef;
1028 1; #this line is important and will help the module return a true value