--- deliantra/server/lib/cf/pod.pm	2007/03/06 19:02:36	1.1
+++ deliantra/server/lib/cf/pod.pm	2008/08/31 09:03:31	1.13
@@ -0,0 +1,220 @@
+package cf::pod;
+
+use Pod::POM;
+
+our $indent;
+our $level;
+our @result;
+
+package cf::pod::AsParagraphs;
+
+use strict;
+
+use base "Pod::POM::View";
+
+sub asxml($) {
+   local $_ = $_[0];
+
+   s/</E<lt>/g;
+   s/>/E<gt>/g;
+
+   $_
+}
+
+sub flatten($) {
+   local $_ = $_[0];
+
+   s/<[^>]+>//g;
+   s/^\s+//;
+   s/\s+$//;
+   s/\s+/ /g;
+
+   $_
+}
+
+*view_seq_file   =
+*view_seq_code   =
+*view_seq_bold   = sub { "B<$_[1]>" };
+*view_seq_italic = sub { "I<$_[1]>" };
+*view_seq_zero   = sub { };
+*view_seq_space  = sub { my $text = $_[1]; $text =~ s/ /\xa0/g; $text };
+*view_seq_index  = sub { push @{ $result[-1]{index} }, $_[1]; "" };
+
+sub view_seq_text {
+   my $text = $_[1];
+   $text =~ s/\s+/ /g;
+   asxml $text
+}
+
+sub view_seq_link {
+   my (undef, $link) = @_;
+
+   my $text = $link =~ s/^(.*)\|// ? $1 : $link;
+
+   if ($link =~ /http:/) {
+      "U<" . (asxml $link) . ">"
+   } else {
+      ()
+   }
+}
+
+sub view_item {
+   push @result, {
+      type   => "item",
+      indent => $indent * 8,
+      level  => $level,
+   };
+   my $title = $_[1]->title->present ($_[0]);
+   $result[-1]{markup} = $title if length $title;
+   $title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
+   local $level = $level + 1;
+   $_[1]->content->present ($_[0]);
+   ()
+}
+
+sub view_verbatim {
+   push @result, {
+      type   => "verbatim",
+      indent => $indent * 16,
+      level  => $level,
+      markup => $_[1],
+   };
+   ()
+}
+
+sub view_textblock {
+   push @result, {
+      indent => $indent * 16,
+      level  => $level,
+      markup => flatten $_[1],
+   };
+   ()
+}
+
+sub view_head1 {
+   push @result, {
+      type   => "head1",
+      indent => $indent * 16,
+      level  => $level,
+   };
+   my $title = $_[1]->title->present ($_[0]);
+   $result[-1]{markup} = $title if length $title;
+   $title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
+   local $level = $level + 1;
+   $_[1]->content->present ($_[0]);
+   ()
+};
+
+sub view_head2 {
+   push @result, {
+      type   => "head2",
+      indent => $indent * 16,
+      level  => $level,
+   };
+   my $title = $_[1]->title->present ($_[0]);
+   $result[-1]{markup} = $title if length $title;
+   $title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
+   local $level = $level + 1;
+   $_[1]->content->present ($_[0]);
+   ()
+};
+
+sub view_head3 {
+   push @result, {
+      type   => "head3",
+      indent => $indent * 16,
+      level  => $level,
+   };
+   my $title = $_[1]->title->present ($_[0]);
+   $result[-1]{markup} = $title if length $title;
+   $title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
+   local $level = $level + 1;
+   $_[1]->content->present ($_[0]);
+   ()
+};
+
+sub view_over {
+   local $indent = $indent + $_[1]->indent;
+   push @result, { indent => $indent };
+   $_[1]->content->present ($_[0]);
+   ()
+}
+
+sub view_for {
+   if ($_[1]->format eq "image") {
+#      push @result, {
+#         indent => $indent * 16,
+#         level  => $level,
+#         markup => (::special image => "pod/" . $_->text),
+#      };
+   }
+   ()
+}
+
+sub view_begin {
+   ()
+}
+
+sub view {
+   my ($self, $type, $item) = @_;
+
+   $item->content->present ($self);
+}
+
+#############################################################################
+
+package cf::pod;
+
+sub pom_as_paragraphs($) {
+   my ($pom) = @_;
+
+   # we suckers use global variables, unfortunately.
+   my $guard = cf::lock_acquire "cf::pod::as_paragraphs";
+
+   local $indent = 0;
+   local $level  = 1;
+   local @result = ( { } );
+
+   $pom->present ("cf::pod::AsParagraphs");
+
+   [grep $_->{index} || exists $_->{markup}, @result]
+}
+
+sub load_pod($) {
+   my ($path) = @_;
+
+   Coro::Storable::thaw cf::cache "cf::pod::as_paragraphs/$path" => [$path],
+      3 => sub {
+         my ($src) = @_;
+
+         cf::fork_call {
+            my $pod = $src->[0];
+            utf8::decode $pod;
+            Coro::Storable::blocking_nfreeze pom_as_paragraphs +(Pod::POM->new->parse_text ($pod))
+         }
+      };
+}
+
+# format as cfpod-style text
+sub as_cfpod($) {
+   my ($pars) = @_;
+
+   my $res;
+
+   for my $par (@$pars) {
+      if ($par->{type} =~ /^head\d+$/) {
+         $res .= "B<$par->{markup}>\n\n";
+      } elsif ($par->{type} eq "verbatim") {
+         $res .= "\n$par->{markup}\n\n";
+      } elsif ($par->{type} eq "item") {
+         $res .= "\n* I<$par->{markup}>\n\n";
+      } else {
+         $res .= "$par->{markup}\n\n";
+      }
+   }
+
+   $res
+}
+
+1;
+