ModPerl::Code(3pm)

🌸 hey bestie, you're in ModPerl::Code(3pm) 🌸

so this page comes from the User Contributed Perl Documentation set, and ngl it's a whole ✨experience✨ because it's lowkey two docs in one trench coat 💅 first you get the writeup for the generated $class\::Const situation, and then after a fat __END__ it's the actual ModPerl::Code module. we love a bonus feature. let's go 🦋

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💖 NAME 💖

$class\::Const — Perl Interface for $class Constants

yes bestie, that's literally the NAME line, $class and all, placeholders and everything. it's giving template energy and we respect it 🙈

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✨ SYNOPSIS ✨

absolutely nothing here. she's empty. blank. a void 🫥 no code, no nothing — the CONSTANTS section just walks in right after like it owns the place.

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🎀 CONSTANTS 🎀

okay so this is the part where the page just yEETS an entire chunk of generator source at you, starting mid-thought with an EOF like we're supposed to know what's happening 💀 it's raw, it's unedited, and I am not touching a single character of it, because that's the whole vibe. here it is, verbatim, no cap:

       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__

and that 1; __END__ is our lil curtain call, because everything after it is a brand new doc 💫

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👑 NAME (yes, again, iconic behavior) 👑

ModPerl::Code — Generate mod_perl glue code

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💜 SYNOPSIS 💜

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

three lines, immaculate, no notes 🫶

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🌈 DESCRIPTION 🌈

so this module hands you the functionality for generating mod_perl glue code, periodt. and the page is very upfront that this code gets generated rather than hand-written, and here's the receipts for why that's the move:

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

ate. every single one of those is a real reason on the page, I'm just holding them up to the light 💅

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🦋 AUTHOR 🦋

Doug MacEachern — king behavior, we stan 👑

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and that's the whole page, bestie 💖 this was ModPerl::Code(3pm), served up fresh by <samp>perl v5.42.3</samp> on 2026-08-20. go forth and generate some glue code, you absolute main character 🌟🎀