SYNOPSIS

     use Module::CoreList::More;
    
     # true, this module has always been in core since specified perl release
     Module::CoreList::More->is_still_core("Benchmark", 5.010001);
    
     # false, since CGI is removed in perl 5.021000
     Module::CoreList::More->is_still_core("CGI");
    
     # false, never been in core
     Module::CoreList::More->is_still_core("Foo");
    
     my %modules = list_still_core_modules(5.010001);

DESCRIPTION

    This module is my experiment for providing more functionality to (or
    related to) Module::CoreList. Some ideas include: faster functions,
    more querying functions, more convenience functions. When I've got
    something stable and useful to show for, I'll most probably suggest the
    appropriate additions to Module::CoreList.

    Below are random notes:

FUNCTIONS

    These functions are not exported. They can be called as function (e.g.
    Module::CoreList::More::is_still_core($name) or as class method (e.g.
    Module::CoreList::More->is_still_core($name).

 first_release( MODULE )

    Like Module::CoreList's first_release, but faster.

 first_release_by_date( MODULE )

    Like Module::CoreList's first_release_by_date, but faster.

 is_core( MODULE, [ MODULE_VERSION, [ PERL_VERSION ] ] )

    Like Module::CoreList's is_core, but faster (see "BENCHMARK").
    Module::CoreList's is_core() is in general unoptimized, so our version
    can be much faster.

    Ideas for further speeding up (if needed): produce a cached data
    structure of list of core modules for a certain Perl release (the data
    structure in Module::CoreList are just list of Perl releases + date
    %released and %delta which only lists differences of modules between
    Perl releases).

 is_still_core( MODULE, [ MODULE_VERSION, [ PERL_VERSION ] ] )

    Like is_core, but will also check that from PERL_VERSION up to the
    latest known version, MODULE has never been removed from core.

    Note/idea: could also be implemented by adding a fourth argument
    MAX_PERL_VERSION to is_core, defaulting to the latest known version.

 list_core_modules([ PERL_VERSION ]) => %modules

    List modules that are in core at specified perl release.

 list_still_core_modules([ PERL_VERSION ]) => %modules

    List modules that are (still) in core from specified perl release to
    the latest. Keys are module names, while values are versions of said
    modules in specified perl release.

BENCHMARK

    #COMMAND: devscripts/bench

SEE ALSO

    Module::CoreList