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Invalid version object v%ld .%ld ver ver is not of type version alpha->numify() is lossy %d. %03d 000 original %d snprintf panic: %s buffer overflow C POSIX %.9f width Integer overflow in version v.Inf vinf v%s undef version::vxs version::vxs::_VERSION v5.26.0 vxs.c vxs.xs version::vxs::() version::vxs::new version::vxs::parse version::vxs::("" version::vxs::stringify version::vxs::(0+ version::vxs::numify version::vxs::normal version::vxs::(cmp version::vxs::(<=> version::vxs::VCMP version::vxs::(bool version::vxs::boolean version::vxs::(+ version::vxs::(- version::vxs::(* version::vxs::(/ version::vxs::(+= version::vxs::(-= version::vxs::(*= version::vxs::(/= version::vxs::(abs version::vxs::(nomethod version::vxs::noop version::vxs::is_alpha version::vxs::qv version::vxs::declare version::vxs::is_qv operation not supported with version object Invalid version format (misplaced underscore) Invalid version format (multiple underscores) Invalid version format (fractional part required) Invalid version format (underscores before decimal) Invalid version format (version required) Invalid version format (non-numeric data) Invalid version format (alpha without decimal) Invalid version format (trailing decimal) Invalid version format (dotted-decimal versions require at least three parts) Invalid version format (negative version number) Integer overflow in version %d Version string '%s' contains invalid data; ignoring: '%s' Usage: version::new(class, version) Usage: UNIVERSAL::VERSION(sv, ...) 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GA* GA!stack_realign GA$3h864 � � GA$3h864 � � GA$3a1 ~P ~P GA$3a1 ~P ~P GA$3a1 n s GA$3a1 �P �P vxs.so-0.99.24-1.el8.x86_64.debug /�q��7zXZ �ִF ! t/����] ?�E�h=��ڊ�2N�`��� ��ӝԒ���;�:�)�����(���glf� � "� O����SVJ:l�)�JtɄ�K����zV��v�| *H�� �kU�/\~X�>�D�: �������zMeRF�f rA]�l;SsQ�?���g��9���OΤ��a@r�j���Qی�?��xR�/M�T���6V_'�U�V��0-��YjL9�ѣ`�_������ 0�Q���7i@�H Y�s��G?�o0� ƻ�h}��[-/��@9���` F���.٦��@ۚ��6�c�nK��H����;� n���(z~�D�YVgDF9c�lj T�-�6~�S���r �u7=��&���#��o4'����-�<x� d��r��� *���*��O b($ގ�& u�/���QՁ�Ҡ�_�i���� �k(8P������h�iQ_�>���qiN�I��� �ir�l�:7tH��]~� O�4�ڍ���H� �a,C5uz�{ 6ړB(e}�h�"_�e��|�jN&���TtbY�b� -~b��3\�g��B �CR`��3n :[Wk�ې���}G�|x�Ξ�MO�as��9��>qo-�Vƞ��Ғ�����;rl�ٛZb�!���[��C!�õ(�i�,z2 � &�n\�J\��a���ag��ll�vQ#|�������=�Ju�&��j�d1 U�m|;QT &~��@�qx�W�� �d@��3���~�>0�v%GNX����ˈ�\ >�+Q��S�'` �명���KCJ�S�"]����\��$�� ��f��ۋ�הc[�� S0^�q�G��N���z�� �GsZ^:��+I ��;�5��A���X�1B�S]��}�k<3� ;��w� �b�����A���X�!����tey�����oIb��5�� Z�(91�2OZB�X��^`W �I��F= �cz�s/�� NxC���9g V��(i� ��! iU�ձ�g� YZ .shstrtab .note.gnu.build-id .gnu.hash .dynsym .dynstr .gnu.version .gnu.version_r .rela.dyn .rela.plt .init .plt.sec .text .fini .rodata .eh_frame_hdr .eh_frame .note.gnu.property .init_array .fini_array .data.rel.ro .dynamic .got .bss .gnu.build.attributes .gnu_debuglink .gnu_debugdata $ ���o ( ( 4 ( ` ` � 0 � � � 8 ���o � � v E ���o 8 8 @ T x x 0 ^ B � � � h X X c � � 0 n � � w � � �2 } �P �P � �P �P H � �W �W � � �X �X � � �_ �_ � 0j 0j � 8j 8j � @j @j � � 0l 0l � 0n 0n � � p p � p` p � �r ( �r 4 w " Internals.pod 0000644 00000060702 15204276500 0007215 0 ustar 00 =head1 NAME version::Internals - Perl extension for Version Objects =head1 DESCRIPTION Overloaded version objects for all modern versions of Perl. This documents the internal data representation and underlying code for version.pm. See F<version.pod> for daily usage. This document is only useful for users interested in the gory details. =head1 WHAT IS A VERSION? For the purposes of this module, a version "number" is a sequence of positive integer values separated by one or more decimal points and optionally a single underscore. This corresponds to what Perl itself uses for a version, as well as extending the "version as number" that is discussed in the various editions of the Camel book. There are actually two distinct kinds of version objects: =over 4 =item Decimal versions Any version which "looks like a number", see L<Decimal Versions>. This also includes versions with a single decimal point and a single embedded underscore, see L<Alpha Versions>, even though these must be quoted to preserve the underscore formatting. =item Dotted-Decimal versions Also referred to as "Dotted-Integer", these contains more than one decimal point and may have an optional embedded underscore, see L<Dotted-Decimal Versions>. This is what is commonly used in most open source software as the "external" version (the one used as part of the tag or tarfile name). A leading 'v' character is now required and will warn if it missing. =back Both of these methods will produce similar version objects, in that the default stringification will yield the version L<Normal Form> only if required: $v = version->new(1.002); # 1.002, but compares like 1.2.0 $v = version->new(1.002003); # 1.002003 $v2 = version->new("v1.2.3"); # v1.2.3 In specific, version numbers initialized as L<Decimal Versions> will stringify as they were originally created (i.e. the same string that was passed to C<new()>. Version numbers initialized as L<Dotted-Decimal Versions> will be stringified as L<Normal Form>. =head2 Decimal Versions These correspond to historical versions of Perl itself prior to 5.6.0, as well as all other modules which follow the Camel rules for the $VERSION scalar. A Decimal version is initialized with what looks like a floating point number. Leading zeros B<are> significant and trailing zeros are implied so that a minimum of three places is maintained between subversions. What this means is that any subversion (digits to the right of the decimal place) that contains less than three digits will have trailing zeros added to make up the difference, but only for purposes of comparison with other version objects. For example: # Prints Equivalent to $v = version->new( 1.2); # 1.2 v1.200.0 $v = version->new( 1.02); # 1.02 v1.20.0 $v = version->new( 1.002); # 1.002 v1.2.0 $v = version->new( 1.0023); # 1.0023 v1.2.300 $v = version->new( 1.00203); # 1.00203 v1.2.30 $v = version->new( 1.002003); # 1.002003 v1.2.3 All of the preceding examples are true whether or not the input value is quoted. The important feature is that the input value contains only a single decimal. See also L<Alpha Versions>. IMPORTANT NOTE: As shown above, if your Decimal version contains more than 3 significant digits after the decimal place, it will be split on each multiple of 3, so 1.0003 is equivalent to v1.0.300, due to the need to remain compatible with Perl's own 5.005_03 == 5.5.30 interpretation. Any trailing zeros are ignored for mathematical comparison purposes. =head2 Dotted-Decimal Versions These are the newest form of versions, and correspond to Perl's own version style beginning with 5.6.0. Starting with Perl 5.10.0, and most likely Perl 6, this is likely to be the preferred form. This method normally requires that the input parameter be quoted, although Perl's after 5.8.1 can use v-strings as a special form of quoting, but this is highly discouraged. Unlike L<Decimal Versions>, Dotted-Decimal Versions have more than a single decimal point, e.g.: # Prints $v = version->new( "v1.200"); # v1.200.0 $v = version->new("v1.20.0"); # v1.20.0 $v = qv("v1.2.3"); # v1.2.3 $v = qv("1.2.3"); # v1.2.3 $v = qv("1.20"); # v1.20.0 In general, Dotted-Decimal Versions permit the greatest amount of freedom to specify a version, whereas Decimal Versions enforce a certain uniformity. Just like L</Decimal Versions>, Dotted-Decimal Versions can be used as L</Alpha Versions>. =head2 Alpha Versions For module authors using CPAN, the convention has been to note unstable releases with an underscore in the version string. (See L<CPAN>.) version.pm follows this convention and alpha releases will test as being newer than the more recent stable release, and less than the next stable release. Only the last element may be separated by an underscore: # Declaring use version 0.77; our $VERSION = version->declare("v1.2_3"); # Parsing $v1 = version->parse("v1.2_3"); $v1 = version->parse("1.002_003"); Note that you B<must> quote the version when writing an alpha Decimal version. The stringified form of Decimal versions will always be the same string that was used to initialize the version object. =head2 Regular Expressions for Version Parsing A formalized definition of the legal forms for version strings is included in the C<version::regex> class. Primitives are included for common elements, although they are scoped to the file so they are useful for reference purposes only. There are two publicly accessible scalars that can be used in other code (not exported): =over 4 =item C<$version::LAX> This regexp covers all of the legal forms allowed under the current version string parser. This is not to say that all of these forms are recommended, and some of them can only be used when quoted. For dotted decimals: v1.2 1.2345.6 v1.23_4 The leading 'v' is optional if two or more decimals appear. If only a single decimal is included, then the leading 'v' is required to trigger the dotted-decimal parsing. A leading zero is permitted, though not recommended except when quoted, because of the risk that Perl will treat the number as octal. A trailing underscore plus one or more digits denotes an alpha or development release (and must be quoted to be parsed properly). For decimal versions: 1 1.2345 1.2345_01 an integer portion, an optional decimal point, and optionally one or more digits to the right of the decimal are all required. A trailing underscore is permitted and a leading zero is permitted. Just like the lax dotted-decimal version, quoting the values is required for alpha/development forms to be parsed correctly. =item C<$version::STRICT> This regexp covers a much more limited set of formats and constitutes the best practices for initializing version objects. Whether you choose to employ decimal or dotted-decimal for is a personal preference however. =over 4 =item v1.234.5 For dotted-decimal versions, a leading 'v' is required, with three or more sub-versions of no more than three digits. A leading 0 (zero) before the first sub-version (in the above example, '1') is also prohibited. =item 2.3456 For decimal versions, an integer portion (no leading 0), a decimal point, and one or more digits to the right of the decimal are all required. =back =back Both of the provided scalars are already compiled as regular expressions and do not contain either anchors or implicit groupings, so they can be included in your own regular expressions freely. For example, consider the following code: ($pkg, $ver) =~ / ^[ \t]* use [ \t]+($PKGNAME) (?:[ \t]+($version::STRICT))? [ \t]*; /x; This would match a line of the form: use Foo::Bar::Baz v1.2.3; # legal only in Perl 5.8.1+ where C<$PKGNAME> is another regular expression that defines the legal forms for package names. =head1 IMPLEMENTATION DETAILS =head2 Equivalence between Decimal and Dotted-Decimal Versions When Perl 5.6.0 was released, the decision was made to provide a transformation between the old-style decimal versions and new-style dotted-decimal versions: 5.6.0 == 5.006000 5.005_04 == 5.5.40 The floating point number is taken and split first on the single decimal place, then each group of three digits to the right of the decimal makes up the next digit, and so on until the number of significant digits is exhausted, B<plus> enough trailing zeros to reach the next multiple of three. This was the method that version.pm adopted as well. Some examples may be helpful: equivalent decimal zero-padded dotted-decimal ------- ----------- -------------- 1.2 1.200 v1.200.0 1.02 1.020 v1.20.0 1.002 1.002 v1.2.0 1.0023 1.002300 v1.2.300 1.00203 1.002030 v1.2.30 1.002003 1.002003 v1.2.3 =head2 Quoting Rules Because of the nature of the Perl parsing and tokenizing routines, certain initialization values B<must> be quoted in order to correctly parse as the intended version, especially when using the C<declare> or L</qv()> methods. While you do not have to quote decimal numbers when creating version objects, it is always safe to quote B<all> initial values when using version.pm methods, as this will ensure that what you type is what is used. Additionally, if you quote your initializer, then the quoted value that goes B<in> will be exactly what comes B<out> when your $VERSION is printed (stringified). If you do not quote your value, Perl's normal numeric handling comes into play and you may not get back what you were expecting. If you use a mathematic formula that resolves to a floating point number, you are dependent on Perl's conversion routines to yield the version you expect. You are pretty safe by dividing by a power of 10, for example, but other operations are not likely to be what you intend. For example: $VERSION = version->new((qw$Revision: 1.4)[1]/10); print $VERSION; # yields 0.14 $V2 = version->new(100/9); # Integer overflow in decimal number print $V2; # yields something like 11.111.111.100 Perl 5.8.1 and beyond are able to automatically quote v-strings but that is not possible in earlier versions of Perl. In other words: $version = version->new("v2.5.4"); # legal in all versions of Perl $newvers = version->new(v2.5.4); # legal only in Perl >= 5.8.1 =head2 What about v-strings? There are two ways to enter v-strings: a bare number with two or more decimal points, or a bare number with one or more decimal points and a leading 'v' character (also bare). For example: $vs1 = 1.2.3; # encoded as \1\2\3 $vs2 = v1.2; # encoded as \1\2 However, the use of bare v-strings to initialize version objects is B<strongly> discouraged in all circumstances. Also, bare v-strings are not completely supported in any version of Perl prior to 5.8.1. If you insist on using bare v-strings with Perl > 5.6.0, be aware of the following limitations: 1) For Perl releases 5.6.0 through 5.8.0, the v-string code merely guesses, based on some characteristics of v-strings. You B<must> use a three part version, e.g. 1.2.3 or v1.2.3 in order for this heuristic to be successful. 2) For Perl releases 5.8.1 and later, v-strings have changed in the Perl core to be magical, which means that the version.pm code can automatically determine whether the v-string encoding was used. 3) In all cases, a version created using v-strings will have a stringified form that has a leading 'v' character, for the simple reason that sometimes it is impossible to tell whether one was present initially. =head2 Version Object Internals version.pm provides an overloaded version object that is designed to both encapsulate the author's intended $VERSION assignment as well as make it completely natural to use those objects as if they were numbers (e.g. for comparisons). To do this, a version object contains both the original representation as typed by the author, as well as a parsed representation to ease comparisons. Version objects employ L<overload> methods to simplify code that needs to compare, print, etc the objects. The internal structure of version objects is a blessed hash with several components: bless( { 'original' => 'v1.2.3_4', 'alpha' => 1, 'qv' => 1, 'version' => [ 1, 2, 3, 4 ] }, 'version' ); =over 4 =item original A faithful representation of the value used to initialize this version object. The only time this will not be precisely the same characters that exist in the source file is if a short dotted-decimal version like v1.2 was used (in which case it will contain 'v1.2'). This form is B<STRONGLY> discouraged, in that it will confuse you and your users. =item qv A boolean that denotes whether this is a decimal or dotted-decimal version. See L<version/is_qv()>. =item alpha A boolean that denotes whether this is an alpha version. NOTE: that the underscore can only appear in the last position. See L<version/is_alpha()>. =item version An array of non-negative integers that is used for comparison purposes with other version objects. =back =head2 Replacement UNIVERSAL::VERSION In addition to the version objects, this modules also replaces the core UNIVERSAL::VERSION function with one that uses version objects for its comparisons. The return from this operator is always the stringified form as a simple scalar (i.e. not an object), but the warning message generated includes either the stringified form or the normal form, depending on how it was called. For example: package Foo; $VERSION = 1.2; package Bar; $VERSION = "v1.3.5"; # works with all Perl's (since it is quoted) package main; use version; print $Foo::VERSION; # prints 1.2 print $Bar::VERSION; # prints 1.003005 eval "use foo 10"; print $@; # prints "foo version 10 required..." eval "use foo 1.3.5; # work in Perl 5.6.1 or better print $@; # prints "foo version 1.3.5 required..." eval "use bar 1.3.6"; print $@; # prints "bar version 1.3.6 required..." eval "use bar 1.004"; # note Decimal version print $@; # prints "bar version 1.004 required..." IMPORTANT NOTE: This may mean that code which searches for a specific string (to determine whether a given module is available) may need to be changed. It is always better to use the built-in comparison implicit in C<use> or C<require>, rather than manually poking at C<< class->VERSION >> and then doing a comparison yourself. The replacement UNIVERSAL::VERSION, when used as a function, like this: print $module->VERSION; will also exclusively return the stringified form. See L</Stringification> for more details. =head1 USAGE DETAILS =head2 Using modules that use version.pm As much as possible, the version.pm module remains compatible with all current code. However, if your module is using a module that has defined C<$VERSION> using the version class, there are a couple of things to be aware of. For purposes of discussion, we will assume that we have the following module installed: package Example; use version; $VERSION = qv('1.2.2'); ...module code here... 1; =over 4 =item Decimal versions always work Code of the form: use Example 1.002003; will always work correctly. The C<use> will perform an automatic C<$VERSION> comparison using the floating point number given as the first term after the module name (e.g. above 1.002.003). In this case, the installed module is too old for the requested line, so you would see an error like: Example version 1.002003 (v1.2.3) required--this is only version 1.002002 (v1.2.2)... =item Dotted-Decimal version work sometimes With Perl >= 5.6.2, you can also use a line like this: use Example 1.2.3; and it will again work (i.e. give the error message as above), even with releases of Perl which do not normally support v-strings (see L<What about v-strings?> above). This has to do with that fact that C<use> only checks to see if the second term I<looks like a number> and passes that to the replacement L<UNIVERSAL::VERSION|UNIVERSAL/VERSION>. This is not true in Perl 5.005_04, however, so you are B<strongly encouraged> to always use a Decimal version in your code, even for those versions of Perl which support the Dotted-Decimal version. =back =head2 Object Methods =over 4 =item new() Like many OO interfaces, the new() method is used to initialize version objects. If two arguments are passed to C<new()>, the B<second> one will be used as if it were prefixed with "v". This is to support historical use of the C<qw> operator with the CVS variable $Revision, which is automatically incremented by CVS every time the file is committed to the repository. In order to facilitate this feature, the following code can be employed: $VERSION = version->new(qw$Revision: 2.7 $); and the version object will be created as if the following code were used: $VERSION = version->new("v2.7"); In other words, the version will be automatically parsed out of the string, and it will be quoted to preserve the meaning CVS normally carries for versions. The CVS $Revision$ increments differently from Decimal versions (i.e. 1.10 follows 1.9), so it must be handled as if it were a Dotted-Decimal Version. A new version object can be created as a copy of an existing version object, either as a class method: $v1 = version->new(12.3); $v2 = version->new($v1); or as an object method: $v1 = version->new(12.3); $v2 = $v1->new(12.3); and in each case, $v1 and $v2 will be identical. NOTE: if you create a new object using an existing object like this: $v2 = $v1->new(); the new object B<will not> be a clone of the existing object. In the example case, $v2 will be an empty object of the same type as $v1. =back =over 4 =item qv() An alternate way to create a new version object is through the exported qv() sub. This is not strictly like other q? operators (like qq, qw), in that the only delimiters supported are parentheses (or spaces). It is the best way to initialize a short version without triggering the floating point interpretation. For example: $v1 = qv(1.2); # v1.2.0 $v2 = qv("1.2"); # also v1.2.0 As you can see, either a bare number or a quoted string can usually be used interchangeably, except in the case of a trailing zero, which must be quoted to be converted properly. For this reason, it is strongly recommended that all initializers to qv() be quoted strings instead of bare numbers. To prevent the C<qv()> function from being exported to the caller's namespace, either use version with a null parameter: use version (); or just require version, like this: require version; Both methods will prevent the import() method from firing and exporting the C<qv()> sub. =back For the subsequent examples, the following three objects will be used: $ver = version->new("1.2.3.4"); # see "Quoting Rules" $alpha = version->new("1.2.3_4"); # see "Alpha Versions" $nver = version->new(1.002); # see "Decimal Versions" =over 4 =item Normal Form For any version object which is initialized with multiple decimal places (either quoted or if possible v-string), or initialized using the L<qv()|version/qv()> operator, the stringified representation is returned in a normalized or reduced form (no extraneous zeros), and with a leading 'v': print $ver->normal; # prints as v1.2.3.4 print $ver->stringify; # ditto print $ver; # ditto print $nver->normal; # prints as v1.2.0 print $nver->stringify; # prints as 1.002, # see "Stringification" In order to preserve the meaning of the processed version, the normalized representation will always contain at least three sub terms. In other words, the following is guaranteed to always be true: my $newver = version->new($ver->stringify); if ($newver eq $ver ) # always true {...} =back =over 4 =item Numification Although all mathematical operations on version objects are forbidden by default, it is possible to retrieve a number which corresponds to the version object through the use of the $obj->numify method. For formatting purposes, when displaying a number which corresponds a version object, all sub versions are assumed to have three decimal places. So for example: print $ver->numify; # prints 1.002003004 print $nver->numify; # prints 1.002 Unlike the stringification operator, there is never any need to append trailing zeros to preserve the correct version value. =back =over 4 =item Stringification The default stringification for version objects returns exactly the same string as was used to create it, whether you used C<new()> or C<qv()>, with one exception. The sole exception is if the object was created using C<qv()> and the initializer did not have two decimal places or a leading 'v' (both optional), then the stringified form will have a leading 'v' prepended, in order to support round-trip processing. For example: Initialized as Stringifies to ============== ============== version->new("1.2") 1.2 version->new("v1.2") v1.2 qv("1.2.3") 1.2.3 qv("v1.3.5") v1.3.5 qv("1.2") v1.2 ### exceptional case See also L<UNIVERSAL::VERSION|UNIVERSAL/VERSION>, as this also returns the stringified form when used as a class method. IMPORTANT NOTE: There is one exceptional cases shown in the above table where the "initializer" is not stringwise equivalent to the stringified representation. If you use the C<qv>() operator on a version without a leading 'v' B<and> with only a single decimal place, the stringified output will have a leading 'v', to preserve the sense. See the L</qv()> operator for more details. IMPORTANT NOTE 2: Attempting to bypass the normal stringification rules by manually applying L<numify()|version/numify()> and L<normal()|version/normal()> will sometimes yield surprising results: print version->new(version->new("v1.0")->numify)->normal; # v1.0.0 The reason for this is that the L<numify()|version/numify()> operator will turn "v1.0" into the equivalent string "1.000000". Forcing the outer version object to L<normal()|version/normal()> form will display the mathematically equivalent "v1.0.0". As the example in L</new()> shows, you can always create a copy of an existing version object with the same value by the very compact: $v2 = $v1->new($v1); and be assured that both C<$v1> and C<$v2> will be completely equivalent, down to the same internal representation as well as stringification. =back =over 4 =item Comparison operators Both C<cmp> and C<E<lt>=E<gt>> operators perform the same comparison between terms (upgrading to a version object automatically). Perl automatically generates all of the other comparison operators based on those two. In addition to the obvious equalities listed below, appending a single trailing 0 term does not change the value of a version for comparison purposes. In other words "v1.2" and "1.2.0" will compare as identical. For example, the following relations hold: As Number As String Truth Value ------------- ---------------- ----------- $ver > 1.0 $ver gt "1.0" true $ver < 2.5 $ver lt true $ver != 1.3 $ver ne "1.3" true $ver == 1.2 $ver eq "1.2" false $ver == 1.2.3.4 $ver eq "1.2.3.4" see discussion below It is probably best to chose either the Decimal notation or the string notation and stick with it, to reduce confusion. Perl6 version objects B<may> only support Decimal comparisons. See also L<Quoting Rules>. WARNING: Comparing version with unequal numbers of decimal points (whether explicitly or implicitly initialized), may yield unexpected results at first glance. For example, the following inequalities hold: version->new(0.96) > version->new(0.95); # 0.960.0 > 0.950.0 version->new("0.96.1") < version->new(0.95); # 0.096.1 < 0.950.0 For this reason, it is best to use either exclusively L<Decimal Versions> or L<Dotted-Decimal Versions> with multiple decimal points. =back =over 4 =item Logical Operators If you need to test whether a version object has been initialized, you can simply test it directly: $vobj = version->new($something); if ( $vobj ) # true only if $something was non-blank You can also test whether a version object is an alpha version, for example to prevent the use of some feature not present in the main release: $vobj = version->new("1.2_3"); # MUST QUOTE ...later... if ( $vobj->is_alpha ) # True =back =head1 AUTHOR John Peacock E<lt>jpeacock@cpan.orgE<gt> =head1 SEE ALSO L<perl>. =cut vxs.pm 0000644 00000000744 15204276500 0005730 0 ustar 00 #!perl -w package version::vxs; use v5.10; use strict; our $VERSION = 0.9924; our $CLASS = 'version::vxs'; our @ISA; eval { require XSLoader; local $^W; # shut up the 'redefined' warning for UNIVERSAL::VERSION XSLoader::load('version::vxs', $VERSION); 1; } or do { require DynaLoader; push @ISA, 'DynaLoader'; local $^W; # shut up the 'redefined' warning for UNIVERSAL::VERSION bootstrap version::vxs $VERSION; }; # Preloaded methods go here. 1; vpp.pm 0000644 00000052547 15204276500 0005725 0 ustar 00 package charstar; # a little helper class to emulate C char* semantics in Perl # so that prescan_version can use the same code as in C use overload ( '""' => \&thischar, '0+' => \&thischar, '++' => \&increment, '--' => \&decrement, '+' => \&plus, '-' => \&minus, '*' => \&multiply, 'cmp' => \&cmp, '<=>' => \&spaceship, 'bool' => \&thischar, '=' => \&clone, ); sub new { my ($self, $string) = @_; my $class = ref($self) || $self; my $obj = { string => [split(//,$string)], current => 0, }; return bless $obj, $class; } sub thischar { my ($self) = @_; my $last = $#{$self->{string}}; my $curr = $self->{current}; if ($curr >= 0 && $curr <= $last) { return $self->{string}->[$curr]; } else { return ''; } } sub increment { my ($self) = @_; $self->{current}++; } sub decrement { my ($self) = @_; $self->{current}--; } sub plus { my ($self, $offset) = @_; my $rself = $self->clone; $rself->{current} += $offset; return $rself; } sub minus { my ($self, $offset) = @_; my $rself = $self->clone; $rself->{current} -= $offset; return $rself; } sub multiply { my ($left, $right, $swapped) = @_; my $char = $left->thischar(); return $char * $right; } sub spaceship { my ($left, $right, $swapped) = @_; unless (ref($right)) { # not an object already $right = $left->new($right); } return $left->{current} <=> $right->{current}; } sub cmp { my ($left, $right, $swapped) = @_; unless (ref($right)) { # not an object already if (length($right) == 1) { # comparing single character only return $left->thischar cmp $right; } $right = $left->new($right); } return $left->currstr cmp $right->currstr; } sub bool { my ($self) = @_; my $char = $self->thischar; return ($char ne ''); } sub clone { my ($left, $right, $swapped) = @_; $right = { string => [@{$left->{string}}], current => $left->{current}, }; return bless $right, ref($left); } sub currstr { my ($self, $s) = @_; my $curr = $self->{current}; my $last = $#{$self->{string}}; if (defined($s) && $s->{current} < $last) { $last = $s->{current}; } my $string = join('', @{$self->{string}}[$curr..$last]); return $string; } package version::vpp; use 5.006002; use strict; use warnings::register; use Config; our $VERSION = 0.9924; our $CLASS = 'version::vpp'; our ($LAX, $STRICT, $WARN_CATEGORY); if ($] > 5.015) { warnings::register_categories(qw/version/); $WARN_CATEGORY = 'version'; } else { $WARN_CATEGORY = 'numeric'; } require version::regex; *version::vpp::is_strict = \&version::regex::is_strict; *version::vpp::is_lax = \&version::regex::is_lax; *LAX = \$version::regex::LAX; *STRICT = \$version::regex::STRICT; use overload ( '""' => \&stringify, '0+' => \&numify, 'cmp' => \&vcmp, '<=>' => \&vcmp, 'bool' => \&vbool, '+' => \&vnoop, '-' => \&vnoop, '*' => \&vnoop, '/' => \&vnoop, '+=' => \&vnoop, '-=' => \&vnoop, '*=' => \&vnoop, '/=' => \&vnoop, 'abs' => \&vnoop, ); sub import { no strict 'refs'; my ($class) = shift; # Set up any derived class unless ($class eq $CLASS) { local $^W; *{$class.'::declare'} = \&{$CLASS.'::declare'}; *{$class.'::qv'} = \&{$CLASS.'::qv'}; } my %args; if (@_) { # any remaining terms are arguments map { $args{$_} = 1 } @_ } else { # no parameters at all on use line %args = ( qv => 1, 'UNIVERSAL::VERSION' => 1, ); } my $callpkg = caller(); if (exists($args{declare})) { *{$callpkg.'::declare'} = sub {return $class->declare(shift) } unless defined(&{$callpkg.'::declare'}); } if (exists($args{qv})) { *{$callpkg.'::qv'} = sub {return $class->qv(shift) } unless defined(&{$callpkg.'::qv'}); } if (exists($args{'UNIVERSAL::VERSION'})) { no warnings qw/redefine/; *UNIVERSAL::VERSION = \&{$CLASS.'::_VERSION'}; } if (exists($args{'VERSION'})) { *{$callpkg.'::VERSION'} = \&{$CLASS.'::_VERSION'}; } if (exists($args{'is_strict'})) { *{$callpkg.'::is_strict'} = \&{$CLASS.'::is_strict'} unless defined(&{$callpkg.'::is_strict'}); } if (exists($args{'is_lax'})) { *{$callpkg.'::is_lax'} = \&{$CLASS.'::is_lax'} unless defined(&{$callpkg.'::is_lax'}); } } my $VERSION_MAX = 0x7FFFFFFF; # implement prescan_version as closely to the C version as possible use constant TRUE => 1; use constant FALSE => 0; sub isDIGIT { my ($char) = shift->thischar(); return ($char =~ /\d/); } sub isALPHA { my ($char) = shift->thischar(); return ($char =~ /[a-zA-Z]/); } sub isSPACE { my ($char) = shift->thischar(); return ($char =~ /\s/); } sub BADVERSION { my ($s, $errstr, $error) = @_; if ($errstr) { $$errstr = $error; } return $s; } sub prescan_version { my ($s, $strict, $errstr, $sqv, $ssaw_decimal, $swidth, $salpha) = @_; my $qv = defined $sqv ? $$sqv : FALSE; my $saw_decimal = defined $ssaw_decimal ? $$ssaw_decimal : 0; my $width = defined $swidth ? $$swidth : 3; my $alpha = defined $salpha ? $$salpha : FALSE; my $d = $s; if ($qv && isDIGIT($d)) { goto dotted_decimal_version; } if ($d eq 'v') { # explicit v-string $d++; if (isDIGIT($d)) { $qv = TRUE; } else { # degenerate v-string # requires v1.2.3 return BADVERSION($s,$errstr,"Invalid version format (dotted-decimal versions require at least three parts)"); } dotted_decimal_version: if ($strict && $d eq '0' && isDIGIT($d+1)) { # no leading zeros allowed return BADVERSION($s,$errstr,"Invalid version format (no leading zeros)"); } while (isDIGIT($d)) { # integer part $d++; } if ($d eq '.') { $saw_decimal++; $d++; # decimal point } else { if ($strict) { # require v1.2.3 return BADVERSION($s,$errstr,"Invalid version format (dotted-decimal versions require at least three parts)"); } else { goto version_prescan_finish; } } { my $i = 0; my $j = 0; while (isDIGIT($d)) { # just keep reading $i++; while (isDIGIT($d)) { $d++; $j++; # maximum 3 digits between decimal if ($strict && $j > 3) { return BADVERSION($s,$errstr,"Invalid version format (maximum 3 digits between decimals)"); } } if ($d eq '_') { if ($strict) { return BADVERSION($s,$errstr,"Invalid version format (no underscores)"); } if ( $alpha ) { return BADVERSION($s,$errstr,"Invalid version format (multiple underscores)"); } $d++; $alpha = TRUE; } elsif ($d eq '.') { if ($alpha) { return BADVERSION($s,$errstr,"Invalid version format (underscores before decimal)"); } $saw_decimal++; $d++; } elsif (!isDIGIT($d)) { last; } $j = 0; } if ($strict && $i < 2) { # requires v1.2.3 return BADVERSION($s,$errstr,"Invalid version format (dotted-decimal versions require at least three parts)"); } } } # end if dotted-decimal else { # decimal versions my $j = 0; # special $strict case for leading '.' or '0' if ($strict) { if ($d eq '.') { return BADVERSION($s,$errstr,"Invalid version format (0 before decimal required)"); } if ($d eq '0' && isDIGIT($d+1)) { return BADVERSION($s,$errstr,"Invalid version format (no leading zeros)"); } } # and we never support negative version numbers if ($d eq '-') { return BADVERSION($s,$errstr,"Invalid version format (negative version number)"); } # consume all of the integer part while (isDIGIT($d)) { $d++; } # look for a fractional part if ($d eq '.') { # we found it, so consume it $saw_decimal++; $d++; } elsif (!$d || $d eq ';' || isSPACE($d) || $d eq '}') { if ( $d == $s ) { # found nothing return BADVERSION($s,$errstr,"Invalid version format (version required)"); } # found just an integer goto version_prescan_finish; } elsif ( $d == $s ) { # didn't find either integer or period return BADVERSION($s,$errstr,"Invalid version format (non-numeric data)"); } elsif ($d eq '_') { # underscore can't come after integer part if ($strict) { return BADVERSION($s,$errstr,"Invalid version format (no underscores)"); } elsif (isDIGIT($d+1)) { return BADVERSION($s,$errstr,"Invalid version format (alpha without decimal)"); } else { return BADVERSION($s,$errstr,"Invalid version format (misplaced underscore)"); } } elsif ($d) { # anything else after integer part is just invalid data return BADVERSION($s,$errstr,"Invalid version format (non-numeric data)"); } # scan the fractional part after the decimal point if ($d && !isDIGIT($d) && ($strict || ! ($d eq ';' || isSPACE($d) || $d eq '}') )) { # $strict or lax-but-not-the-end return BADVERSION($s,$errstr,"Invalid version format (fractional part required)"); } while (isDIGIT($d)) { $d++; $j++; if ($d eq '.' && isDIGIT($d-1)) { if ($alpha) { return BADVERSION($s,$errstr,"Invalid version format (underscores before decimal)"); } if ($strict) { return BADVERSION($s,$errstr,"Invalid version format (dotted-decimal versions must begin with 'v')"); } $d = $s; # start all over again $qv = TRUE; goto dotted_decimal_version; } if ($d eq '_') { if ($strict) { return BADVERSION($s,$errstr,"Invalid version format (no underscores)"); } if ( $alpha ) { return BADVERSION($s,$errstr,"Invalid version format (multiple underscores)"); } if ( ! isDIGIT($d+1) ) { return BADVERSION($s,$errstr,"Invalid version format (misplaced underscore)"); } $width = $j; $d++; $alpha = TRUE; } } } version_prescan_finish: while (isSPACE($d)) { $d++; } if ($d && !isDIGIT($d) && (! ($d eq ';' || $d eq '}') )) { # trailing non-numeric data return BADVERSION($s,$errstr,"Invalid version format (non-numeric data)"); } if ($saw_decimal > 1 && ($d-1) eq '.') { # no trailing period allowed return BADVERSION($s,$errstr,"Invalid version format (trailing decimal)"); } if (defined $sqv) { $$sqv = $qv; } if (defined $swidth) { $$swidth = $width; } if (defined $ssaw_decimal) { $$ssaw_decimal = $saw_decimal; } if (defined $salpha) { $$salpha = $alpha; } return $d; } sub scan_version { my ($s, $rv, $qv) = @_; my $start; my $pos; my $last; my $errstr; my $saw_decimal = 0; my $width = 3; my $alpha = FALSE; my $vinf = FALSE; my @av; $s = new charstar $s; while (isSPACE($s)) { # leading whitespace is OK $s++; } $last = prescan_version($s, FALSE, \$errstr, \$qv, \$saw_decimal, \$width, \$alpha); if ($errstr) { # 'undef' is a special case and not an error if ( $s ne 'undef') { require Carp; Carp::croak($errstr); } } $start = $s; if ($s eq 'v') { $s++; } $pos = $s; if ( $qv ) { $$rv->{qv} = $qv; } if ( $alpha ) { $$rv->{alpha} = $alpha; } if ( !$qv && $width < 3 ) { $$rv->{width} = $width; } while (isDIGIT($pos) || $pos eq '_') { $pos++; } if (!isALPHA($pos)) { my $rev; for (;;) { $rev = 0; { # this is atoi() that delimits on underscores my $end = $pos; my $mult = 1; my $orev; # the following if() will only be true after the decimal # point of a version originally created with a bare # floating point number, i.e. not quoted in any way # if ( !$qv && $s > $start && $saw_decimal == 1 ) { $mult *= 100; while ( $s < $end ) { next if $s eq '_'; $orev = $rev; $rev += $s * $mult; $mult /= 10; if ( (abs($orev) > abs($rev)) || (abs($rev) > $VERSION_MAX )) { warn("Integer overflow in version %d", $VERSION_MAX); $s = $end - 1; $rev = $VERSION_MAX; $vinf = 1; } $s++; if ( $s eq '_' ) { $s++; } } } else { while (--$end >= $s) { next if $end eq '_'; $orev = $rev; $rev += $end * $mult; $mult *= 10; if ( (abs($orev) > abs($rev)) || (abs($rev) > $VERSION_MAX )) { warn("Integer overflow in version"); $end = $s - 1; $rev = $VERSION_MAX; $vinf = 1; } } } } # Append revision push @av, $rev; if ( $vinf ) { $s = $last; last; } elsif ( $pos eq '.' ) { $s = ++$pos; } elsif ( $pos eq '_' && isDIGIT($pos+1) ) { $s = ++$pos; } elsif ( $pos eq ',' && isDIGIT($pos+1) ) { $s = ++$pos; } elsif ( isDIGIT($pos) ) { $s = $pos; } else { $s = $pos; last; } if ( $qv ) { while ( isDIGIT($pos) || $pos eq '_') { $pos++; } } else { my $digits = 0; while ( ( isDIGIT($pos) || $pos eq '_' ) && $digits < 3 ) { if ( $pos ne '_' ) { $digits++; } $pos++; } } } } if ( $qv ) { # quoted versions always get at least three terms my $len = $#av; # This for loop appears to trigger a compiler bug on OS X, as it # loops infinitely. Yes, len is negative. No, it makes no sense. # Compiler in question is: # gcc version 3.3 20030304 (Apple Computer, Inc. build 1640) # for ( len = 2 - len; len > 0; len-- ) # av_push(MUTABLE_AV(sv), newSViv(0)); # $len = 2 - $len; while ($len-- > 0) { push @av, 0; } } # need to save off the current version string for later if ( $vinf ) { $$rv->{original} = "v.Inf"; $$rv->{vinf} = 1; } elsif ( $s > $start ) { $$rv->{original} = $start->currstr($s); if ( $qv && $saw_decimal == 1 && $start ne 'v' ) { # need to insert a v to be consistent $$rv->{original} = 'v' . $$rv->{original}; } } else { $$rv->{original} = '0'; push(@av, 0); } # And finally, store the AV in the hash $$rv->{version} = \@av; # fix RT#19517 - special case 'undef' as string if ($s eq 'undef') { $s += 5; } return $s; } sub new { my $class = shift; unless (defined $class or $#_ > 1) { require Carp; Carp::croak('Usage: version::new(class, version)'); } my $self = bless ({}, ref ($class) || $class); my $qv = FALSE; if ( $#_ == 1 ) { # must be CVS-style $qv = TRUE; } my $value = pop; # always going to be the last element if ( ref($value) && eval('$value->isa("version")') ) { # Can copy the elements directly $self->{version} = [ @{$value->{version} } ]; $self->{qv} = 1 if $value->{qv}; $self->{alpha} = 1 if $value->{alpha}; $self->{original} = ''.$value->{original}; return $self; } if ( not defined $value or $value =~ /^undef$/ ) { # RT #19517 - special case for undef comparison # or someone forgot to pass a value push @{$self->{version}}, 0; $self->{original} = "0"; return ($self); } if (ref($value) =~ m/ARRAY|HASH/) { require Carp; Carp::croak("Invalid version format (non-numeric data)"); } $value = _un_vstring($value); if ($Config{d_setlocale}) { use POSIX qw/locale_h/; use if $Config{d_setlocale}, 'locale'; my $currlocale = setlocale(LC_ALL); # if the current locale uses commas for decimal points, we # just replace commas with decimal places, rather than changing # locales if ( localeconv()->{decimal_point} eq ',' ) { $value =~ tr/,/./; } } # exponential notation if ( $value =~ /\d+.?\d*e[-+]?\d+/ ) { $value = sprintf("%.9f",$value); $value =~ s/(0+)$//; # trim trailing zeros } my $s = scan_version($value, \$self, $qv); if ($s) { # must be something left over warn(sprintf "Version string '%s' contains invalid data; " ."ignoring: '%s'", $value, $s); } return ($self); } *parse = \&new; sub numify { my ($self) = @_; unless (_verify($self)) { require Carp; Carp::croak("Invalid version object"); } my $alpha = $self->{alpha} || ""; my $len = $#{$self->{version}}; my $digit = $self->{version}[0]; my $string = sprintf("%d.", $digit ); if ($alpha and warnings::enabled()) { warnings::warn($WARN_CATEGORY, 'alpha->numify() is lossy'); } for ( my $i = 1 ; $i <= $len ; $i++ ) { $digit = $self->{version}[$i]; $string .= sprintf("%03d", $digit); } if ( $len == 0 ) { $string .= sprintf("000"); } return $string; } sub normal { my ($self) = @_; unless (_verify($self)) { require Carp; Carp::croak("Invalid version object"); } my $len = $#{$self->{version}}; my $digit = $self->{version}[0]; my $string = sprintf("v%d", $digit ); for ( my $i = 1 ; $i <= $len ; $i++ ) { $digit = $self->{version}[$i]; $string .= sprintf(".%d", $digit); } if ( $len <= 2 ) { for ( $len = 2 - $len; $len != 0; $len-- ) { $string .= sprintf(".%0d", 0); } } return $string; } sub stringify { my ($self) = @_; unless (_verify($self)) { require Carp; Carp::croak("Invalid version object"); } return exists $self->{original} ? $self->{original} : exists $self->{qv} ? $self->normal : $self->numify; } sub vcmp { my ($left,$right,$swap) = @_; my $class = ref($left); unless ( UNIVERSAL::isa($right, $class) ) { $right = $class->new($right); } if ( $swap ) { ($left, $right) = ($right, $left); } unless (_verify($left)) { require Carp; Carp::croak("Invalid version object"); } unless (_verify($right)) { require Carp; Carp::croak("Invalid version format"); } my $l = $#{$left->{version}}; my $r = $#{$right->{version}}; my $m = $l < $r ? $l : $r; my $lalpha = $left->is_alpha; my $ralpha = $right->is_alpha; my $retval = 0; my $i = 0; while ( $i <= $m && $retval == 0 ) { $retval = $left->{version}[$i] <=> $right->{version}[$i]; $i++; } # possible match except for trailing 0's if ( $retval == 0 && $l != $r ) { if ( $l < $r ) { while ( $i <= $r && $retval == 0 ) { if ( $right->{version}[$i] != 0 ) { $retval = -1; # not a match after all } $i++; } } else { while ( $i <= $l && $retval == 0 ) { if ( $left->{version}[$i] != 0 ) { $retval = +1; # not a match after all } $i++; } } } return $retval; } sub vbool { my ($self) = @_; return vcmp($self,$self->new("0"),1); } sub vnoop { require Carp; Carp::croak("operation not supported with version object"); } sub is_alpha { my ($self) = @_; return (exists $self->{alpha}); } sub qv { my $value = shift; my $class = $CLASS; if (@_) { $class = ref($value) || $value; $value = shift; } $value = _un_vstring($value); $value = 'v'.$value unless $value =~ /(^v|\d+\.\d+\.\d)/; my $obj = $CLASS->new($value); return bless $obj, $class; } *declare = \&qv; sub is_qv { my ($self) = @_; return (exists $self->{qv}); } sub _verify { my ($self) = @_; if ( ref($self) && eval { exists $self->{version} } && ref($self->{version}) eq 'ARRAY' ) { return 1; } else { return 0; } } sub _is_non_alphanumeric { my $s = shift; $s = new charstar $s; while ($s) { return 0 if isSPACE($s); # early out return 1 unless (isALPHA($s) || isDIGIT($s) || $s =~ /[.-]/); $s++; } return 0; } sub _un_vstring { my $value = shift; # may be a v-string if ( length($value) >= 1 && $value !~ /[,._]/ && _is_non_alphanumeric($value)) { my $tvalue; if ( $] >= 5.008_001 ) { $tvalue = _find_magic_vstring($value); $value = $tvalue if length $tvalue; } elsif ( $] >= 5.006_000 ) { $tvalue = sprintf("v%vd",$value); if ( $tvalue =~ /^v\d+(\.\d+)*$/ ) { # must be a v-string $value = $tvalue; } } } return $value; } sub _find_magic_vstring { my $value = shift; my $tvalue = ''; require B; my $sv = B::svref_2object(\$value); my $magic = ref($sv) eq 'B::PVMG' ? $sv->MAGIC : undef; while ( $magic ) { if ( $magic->TYPE eq 'V' ) { $tvalue = $magic->PTR; $tvalue =~ s/^v?(.+)$/v$1/; last; } else { $magic = $magic->MOREMAGIC; } } $tvalue =~ tr/_//d; return $tvalue; } sub _VERSION { my ($obj, $req) = @_; my $class = ref($obj) || $obj; no strict 'refs'; if ( exists $INC{"$class.pm"} and not %{"$class\::"} and $] >= 5.008) { # file but no package require Carp; Carp::croak( "$class defines neither package nor VERSION" ."--version check failed"); } my $version = eval "\$$class\::VERSION"; if ( defined $version ) { local $^W if $] <= 5.008; $version = version::vpp->new($version); } if ( defined $req ) { unless ( defined $version ) { require Carp; my $msg = $] < 5.006 ? "$class version $req required--this is only version " : "$class does not define \$$class\::VERSION" ."--version check failed"; if ( $ENV{VERSION_DEBUG} ) { Carp::confess($msg); } else { Carp::croak($msg); } } $req = version::vpp->new($req); if ( $req > $version ) { require Carp; if ( $req->is_qv ) { Carp::croak( sprintf ("%s version %s required--". "this is only version %s", $class, $req->normal, $version->normal) ); } else { Carp::croak( sprintf ("%s version %s required--". "this is only version %s", $class, $req->stringify, $version->stringify) ); } } } return defined $version ? $version->stringify : undef; } 1; #this line is important and will help the module return a true value regex.pm 0000644 00000007750 15204276500 0006226 0 ustar 00 package version::regex; use strict; our $VERSION = 0.9924; #--------------------------------------------------------------------------# # Version regexp components #--------------------------------------------------------------------------# # Fraction part of a decimal version number. This is a common part of # both strict and lax decimal versions my $FRACTION_PART = qr/\.[0-9]+/; # First part of either decimal or dotted-decimal strict version number. # Unsigned integer with no leading zeroes (except for zero itself) to # avoid confusion with octal. my $STRICT_INTEGER_PART = qr/0|[1-9][0-9]*/; # First part of either decimal or dotted-decimal lax version number. # Unsigned integer, but allowing leading zeros. Always interpreted # as decimal. However, some forms of the resulting syntax give odd # results if used as ordinary Perl expressions, due to how perl treats # octals. E.g. # version->new("010" ) == 10 # version->new( 010 ) == 8 # version->new( 010.2) == 82 # "8" . "2" my $LAX_INTEGER_PART = qr/[0-9]+/; # Second and subsequent part of a strict dotted-decimal version number. # Leading zeroes are permitted, and the number is always decimal. # Limited to three digits to avoid overflow when converting to decimal # form and also avoid problematic style with excessive leading zeroes. my $STRICT_DOTTED_DECIMAL_PART = qr/\.[0-9]{1,3}/; # Second and subsequent part of a lax dotted-decimal version number. # Leading zeroes are permitted, and the number is always decimal. No # limit on the numerical value or number of digits, so there is the # possibility of overflow when converting to decimal form. my $LAX_DOTTED_DECIMAL_PART = qr/\.[0-9]+/; # Alpha suffix part of lax version number syntax. Acts like a # dotted-decimal part. my $LAX_ALPHA_PART = qr/_[0-9]+/; #--------------------------------------------------------------------------# # Strict version regexp definitions #--------------------------------------------------------------------------# # Strict decimal version number. our $STRICT_DECIMAL_VERSION = qr/ $STRICT_INTEGER_PART $FRACTION_PART? /x; # Strict dotted-decimal version number. Must have both leading "v" and # at least three parts, to avoid confusion with decimal syntax. our $STRICT_DOTTED_DECIMAL_VERSION = qr/ v $STRICT_INTEGER_PART $STRICT_DOTTED_DECIMAL_PART{2,} /x; # Complete strict version number syntax -- should generally be used # anchored: qr/ \A $STRICT \z /x our $STRICT = qr/ $STRICT_DECIMAL_VERSION | $STRICT_DOTTED_DECIMAL_VERSION /x; #--------------------------------------------------------------------------# # Lax version regexp definitions #--------------------------------------------------------------------------# # Lax decimal version number. Just like the strict one except for # allowing an alpha suffix or allowing a leading or trailing # decimal-point our $LAX_DECIMAL_VERSION = qr/ $LAX_INTEGER_PART (?: $FRACTION_PART | \. )? $LAX_ALPHA_PART? | $FRACTION_PART $LAX_ALPHA_PART? /x; # Lax dotted-decimal version number. Distinguished by having either # leading "v" or at least three non-alpha parts. Alpha part is only # permitted if there are at least two non-alpha parts. Strangely # enough, without the leading "v", Perl takes .1.2 to mean v0.1.2, # so when there is no "v", the leading part is optional our $LAX_DOTTED_DECIMAL_VERSION = qr/ v $LAX_INTEGER_PART (?: $LAX_DOTTED_DECIMAL_PART+ $LAX_ALPHA_PART? )? | $LAX_INTEGER_PART? $LAX_DOTTED_DECIMAL_PART{2,} $LAX_ALPHA_PART? /x; # Complete lax version number syntax -- should generally be used # anchored: qr/ \A $LAX \z /x # # The string 'undef' is a special case to make for easier handling # of return values from ExtUtils::MM->parse_version our $LAX = qr/ undef | $LAX_DOTTED_DECIMAL_VERSION | $LAX_DECIMAL_VERSION /x; #--------------------------------------------------------------------------# # Preloaded methods go here. sub is_strict { defined $_[0] && $_[0] =~ qr/ \A $STRICT \z /x } sub is_lax { defined $_[0] && $_[0] =~ qr/ \A $LAX \z /x } 1;
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