Module::CoreList(3p) Perl Programmers Reference Guide Module::CoreList(3p) #
Module::CoreList(3p) Perl Programmers Reference Guide Module::CoreList(3p)
NNAAMMEE #
Module::CoreList - what modules shipped with versions of perl
SSYYNNOOPPSSIISS #
use Module::CoreList;
print $Module::CoreList::version{5.00503}{CPAN}; # prints 1.48
print Module::CoreList->first_release('File::Spec');
# prints 5.00405
print Module::CoreList->first_release_by_date('File::Spec');
# prints 5.005
print Module::CoreList->first_release('File::Spec', 0.82);
# prints 5.006001
if (Module::CoreList::is_core('File::Spec')) {
print "File::Spec is a core module\n";
}
print join ', ', Module::CoreList->find_modules(qr/Data/);
# prints 'Data::Dumper'
print join ', ',
Module::CoreList->find_modules(qr/test::h.*::.*s/i, 5.008008);
# prints 'Test::Harness::Assert, Test::Harness::Straps'
print join ", ", @{ $Module::CoreList::families{5.005} };
# prints "5.005, 5.00503, 5.00504"
DDEESSCCRRIIPPTTIIOONN #
Module::CoreList provides information on which core and dual-life modules
shipped with each version of perl.
It provides a number of mechanisms for querying this information.
There is a utility called corelist provided with this module which is a
convenient way of querying from the command-line.
There is a functional programming API available for programmers to query
information.
Programmers may also query the contained hash structures to find relevant
information.
FFUUNNCCTTIIOONNSS AAPPII #
These are the functions that are available, they may either be called as
functions or class methods:
Module::CoreList::first_release('File::Spec'); # as a function
Module::CoreList->first_release('File::Spec'); # class method
"first_release( MODULE )"
Behaviour since version 2.11
Requires a MODULE name as an argument, returns the perl version when
that module first appeared in core as ordered by perl version number
or undef ( in scalar context ) or an empty list ( in list context )
if that module is not in core.
"first_release_by_date( MODULE )"
Requires a MODULE name as an argument, returns the perl version when
that module first appeared in core as ordered by release date or
undef ( in scalar context ) or an empty list ( in list context ) if
that module is not in core.
"find_modules( REGEX, [ LIST OF PERLS ] )"
Takes a regex as an argument, returns a list of modules that match
the regex given. If only a regex is provided applies to all modules
in all perl versions. Optionally you may provide a list of perl
versions to limit the regex search.
"find_version( PERL_VERSION )"
Takes a perl version as an argument. Upon successful completion,
returns a reference to a hash. Each element of that hash has a key
which is the name of a module (_e_._g_._, 'File::Path') shipped with that
version of perl and a value which is the version number (_e_._g_._,
'2.09') of that module which shipped with that version of perl .
Returns "undef" otherwise.
"is_core( MODULE, [ MODULE_VERSION, [ PERL_VERSION ] ] )"
Available in version 2.99 and above.
Returns true if MODULE was bundled with the specified version of
Perl. You can optionally specify a minimum version of the module,
and can also specify a version of Perl. If a version of Perl isn't
specified, "is_core()" will use the numeric version of Perl that is
running (ie $]).
If you want to specify the version of Perl, but don't care about the
version of the module, pass "undef" for the module version:
"is_deprecated( MODULE, PERL_VERSION )"
Available in version 2.22 and above.
Returns true if MODULE is marked as deprecated in PERL_VERSION. If
PERL_VERSION is omitted, it defaults to the current version of Perl.
"deprecated_in( MODULE )"
Available in version 2.77 and above.
Returns the first perl version where the MODULE was marked as
deprecated. Returns "undef" if the MODULE has not been marked as
deprecated.
"removed_from( MODULE )"
Available in version 2.32 and above
Takes a module name as an argument, returns the first perl version
where that module was removed from core. Returns undef if the given
module was never in core or remains in core.
"removed_from_by_date( MODULE )"
Available in version 2.32 and above
Takes a module name as an argument, returns the first perl version by
release date where that module was removed from core. Returns undef
if the given module was never in core or remains in core.
"changes_between( PERL_VERSION, PERL_VERSION )"
Available in version 2.66 and above.
Given two perl versions, this returns a list of pairs describing the
changes in core module content between them. The list is suitable
for storing in a hash. The keys are library names and the values are
hashrefs. Each hashref has an entry for one or both of "left" and
"right", giving the versions of the library in each of the left and
right perl distributions.
For example, it might return these data (among others) for the
difference between 5.008000 and 5.008001:
'Pod::ParseLink' => { left => '1.05', right => '1.06' },
'Pod::ParseUtils' => { left => '0.22', right => '0.3' },
'Pod::Perldoc' => { right => '3.10' },
'Pod::Perldoc::BaseTo' => { right => undef },
This shows us two libraries being updated and two being added, one of
which has an undefined version in the right-hand side version.
DDAATTAA SSTTRRUUCCTTUURREESS #
These are the hash data structures that are available:
%Module::CoreList::version
A hash of hashes that is keyed on perl version as indicated in $].
The second level hash is module => version pairs.
Note, it is possible for the version of a module to be unspecified,
whereby the value is "undef", so use "exists $version{$foo}{$bar}" if
that's what you're testing for.
Starting with 2.10, the special module name "Unicode" refers to the
version of the Unicode Character Database bundled with Perl.
%Module::CoreList::delta
Available in version 3.00 and above.
It is a hash of hashes that is keyed on perl version. Each keyed hash
will have the following keys:
delta_from - a previous perl version that the changes are based on
changed - a hash of module/versions that have changed
removed - a hash of modules that have been removed
%Module::CoreList::released
Keyed on perl version this contains ISO formatted versions of the
release dates, as gleaned from perlhist.
%Module::CoreList::families
New, in 1.96, a hash that clusters known perl releases by their major
versions.
%Module::CoreList::deprecated
A hash of hashes keyed on perl version and on module name. If a
module is defined it indicates that that module is deprecated in that
perl version and is scheduled for removal from core at some future
point.
%Module::CoreList::upstream
A hash that contains information on where patches should be directed
for each core module.
UPSTREAM indicates where patches should go. "undef" implies that this
hasn't been discussed for the module at hand. "blead" indicates that
the copy of the module in the blead sources is to be considered
canonical, "cpan" means that the module on CPAN is to be patched
first. "first-come" means that blead can be patched freely if it is
in sync with the latest release on CPAN.
%Module::CoreList::bug_tracker
A hash that contains information on the appropriate bug tracker for
each core module.
BUGS is an email or url to post bug reports. For modules with
UPSTREAM => 'blead', use <mailto:perl5-porters@perl.org>.
rt.cpan.org appears to automatically provide a URL for CPAN modules;
any value given here overrides the default:
<http://rt.cpan.org/Public/Dist/Display.html?Name=$ModuleName>
CCAAVVEEAATTSS #
Module::CoreList currently covers the 5.000, 5.001, 5.002, 5.003_07,
5.004, 5.004_05, 5.005, 5.005_03, 5.005_04 and 5.7.3 releases of perl.
All stable releases of perl since 5.6.0 are covered.
All development releases of perl since 5.9.0 are covered.
HHIISSTTOORRYY #
Moved to Changes file.
AAUUTTHHOORR #
Richard Clamp <richardc@unixbeard.net>
Currently maintained by the perl 5 porters <perl5-porters@perl.org>.
LLIICCEENNSSEE #
Copyright (C) 2002-2009 Richard Clamp. All Rights Reserved.
This module is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
SSEEEE AALLSSOO #
corelist, Module::Info, perl, <http://perlpunks.de/corelist>
perl v5.36.3 2019-12-30 Module::CoreList(3p)