ModPerl::Code(3)

okay bestie, welcome to ModPerl::Code(3) — the header calls it User Contributed Perl Documentation, and yes, this page has two NAME blocks plus a giant code dump, but we're gonna vibe through it together, fr fr. 💖

💖 NAME 💖

• $class\::Const - Perl Interface for $class Constants — this is the first NAME line, exactly as it appears, no cap. 🫶

✨ SYNOPSIS ✨

okay so this SYNOPSIS is lowkey just the runway for the CONSTANTS section — it rolls straight into the constants code vibe.

🎀 CONSTANTS 🎀

here's the entire code block, verbatim, because we do not edit the sacred glue-code text, bestie. 💅

       EOF

               my $groups = $data{$class};
               for my $group (sort keys %$groups) {
                   print $fh <<"EOF";

   ":$group"
         use $class\::Const -compile qw(:$group);

       The ":$group" group is for XXX constants.

       EOF

                   for my $const (sort @{ $groups->{$group} }) {
                       print $fh "=head3 C<$class\::$const>\n\n\n";
                   }
               }

               print $fh "=cut\n";
           }
       }

       sub generate_constants_lookup_doc {
           my ($data) = @_;

           foreach my $class (sort keys %$Apache2::ConstantsTable) {
               my $groups = $Apache2::ConstantsTable->{$class};
               my $constants = [sort map { @$_ } values %$groups];

               constants_lookup_code_doc($constants, $class, $data);
           }
       }

       sub generate_constants_group_lookup_doc {
           my ($data) = @_;

           foreach my $class (sort keys %$Apache2::ConstantsTable) {
               my $groups = $Apache2::ConstantsTable->{$class};
               constants_group_lookup_code_doc($class, $groups, $data);
           }
       }

       sub constants_group_lookup_code_doc {
           my ($class, $groups, $data) = @_;
           my @tags;
           my @code;

           while (my ($group, $constants) = each %$groups) {
               $data->{$class}{$group} = [
                   map {
                       my @ifdef = constants_ifdef($_);
                       s/^($constant_prefixes)_?//o;
                       $seen_const{$class}{$_}++;
                       $_;
                   } @$constants
               ];
           }
       }

       sub constants_lookup_code_doc {
           my ($constants, $class, $data) = @_;

           my (%switch, %alias);

           %alias = %shortcuts;

           my $postfix = lc $class;
           my $package = $class . '::';
           my $package_len = length $package;

           my $func = canon_func(qw(constants lookup), $postfix);

           for (@$constants) {
               if (s/^($constant_prefixes)(_)?//o) {
                   $alias{$_} = join $2 || "", $1, $_;
               }
               else {
                   $alias{$_} ||= $_;
               }
               next unless /^([A-Z])/;
               push @{ $switch{$1} }, $_;
           }

           for my $key (sort keys %switch) {
               my $names = $switch{$key};
               for my $name (@$names) {
                   my @ifdef = constants_ifdef($alias{$name});
                   push @{ $data->{$class}{other} }, $name
                       unless $seen_const{$class}{$name}
               }
           }
       }

       sub generate_exports {
           my ($self, $c_fh) = @_;
           require ModPerl::WrapXS;
           ModPerl::WrapXS->generate_exports($c_fh); }

       # src/modules/perl/*.c files needed to build APR/APR::* outside # of
       mod_perl.so sub src_apr_ext {
           return map { "modperl_$_" } (qw(error bucket),
                                         map { "common_$_" } qw(util log)); }

       1; __END__

🦋 NAME 🦋

• ModPerl::Code - Generate mod_perl glue code — yep, that's the actual manual's NAME, and it's giving "we generate glue code" main character energy. ✨

🌈 SYNOPSIS 🌈

         use ModPerl::Code ();
         my $code = ModPerl::Code->new;
         $code->generate;

🌸 DESCRIPTION 🌸

This module provides functionality for generating mod_perl glue code. Reason this code is generated rather than written by hand include:

• consistency
• thin and clean glue code
• enable/disable features (without #ifdefs)
• adapt to changes in Apache
• experiment with different approaches to gluing

👑 AUTHOR 👑

Doug MacEachern — periodt. 👑

💖 cute sign-off: this page is from perl v5.42.3, dated 2023-10-21, and it's the ModPerl::Code(3) manual. Slay, bestie! 💅