On Fri, Jun 27, 2014 at 5:09 PM, Kripa <[email protected]> wrote: > Is there a way to learn the differences perl versions N1 and N2, > without having to digest each intermediate perldelta and accumulate > their wisdom one step at a time? > > Alternatively, is there a single table which presents a comparison > of multiple versions (along the lines of some cable companies' > subscription level comparisons)? >
The single best retrospective document is *perldoc perlexperiment* http://search.cpan.org/~rjbs/perl-5.20.0/pod/perlexperiment.pod http://perldoc.perl.org/search.html?q=perlexperiment but that doesn't have all the never-experimental additions? I think i've seen a table of syntax/function extensions by release, but I can't find it now. Part of the information is in *Module::CoreList *and corelist utility http://perldoc.perl.org/corelist.html (When was a module first added to Core, if ever; when deprecated/removed; what Module version in what Perl release.) Part is encoded in *feature.pm <http://feature.pm>*: what is turned on by "use 5.10.0" etc http://cpansearch.perl.org/src/WOLFSAGE/perl-5.21.1/lib/feature.pm > our %feature_bundle = ( > "5.10" => [qw(array_base say state switch)], > "5.11" => [qw(array_base say state switch unicode_strings)], > "5.15" => [qw(current_sub evalbytes fc say state switch unicode_eval > unicode_strings)], > "all" => [qw(array_base current_sub evalbytes fc lexical_subs postderef > postderef_qq say signatures state switch unicode_eval unicode_strings)], > "default" => [qw(array_base)], > ); Note that "use 5.20;" does NOT turn on latest features, which must be asked for by name, preferably by 'experimental', or features 'all' (dangerous if not paired with use 5.20 to detect not-new-enough), or via *use Modern <http://search.cpan.org/~chromatic/Modern-Perl-1.20140107/lib/Modern/Perl.pm>:: <http://search.cpan.org/~chromatic/Modern-Perl-1.20140107/lib/Modern/Perl.pm>Perl <http://search.cpan.org/~chromatic/Modern-Perl-1.20140107/lib/Modern/Perl.pm> '2014'; * which gets you 5.18's features, but not 5.20 yet? (Perl5i only gets you 5.10.0.) -- Bill Ricker [email protected] https://www.linkedin.com/in/n1vux _______________________________________________ Boston-pm mailing list [email protected] http://mail.pm.org/mailman/listinfo/boston-pm
