lib/cf/pod.pm

package cf::pod;

use Pod::POM;

our $indent;
our $level;
our @result;

package cf::pod::AsParagraphs;

use strict;

use base "Pod::POM::View";

my %E = (
   "<" => "E<lt>",
   ">" => "E<gt>",
);

sub aspod($) {
   local $_ = $_[0];

   s/[<>]/$E{$1}/g;

   $_
}

sub flatten($) {
   local $_ = $_[0];

   s/^\s+//;
   s/\s+$//;
   s/\s+/ /g;

   $_
}

*view_seq_file   = sub { "C<$_[1]>" };
*view_seq_code   = sub { "C<$_[1]>" };
*view_seq_bold   = sub { "B<$_[1]>" };
*view_seq_italic = sub { "I<$_[1]>" };
*view_seq_zero   = sub { "Z<>" };
*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;
   aspod $text
}

sub view_seq_link {
   my (undef, $link) = @_;

   my $text = $link =~ s/^(.*)\|// ? $1 : $link;

   if ($link =~ /http:/) {
      "U<" . (aspod $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],
      7 => 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") {
         $res .= "$par->{markup}\n\n";
      } elsif ($par->{type} eq "item") {
         $res .= "* I<$par->{markup}>\n\n";
      } else {
         $res .= "$par->{markup}\n\n";
      }
   }

   $res
}

1;

Revision:	1.18
Committed:	Thu Sep 11 22:18:46 2008 UTC (15 years, 9 months ago) by root
Branch:	MAIN
CVS Tags:	rel-2_72, rel-2_73, rel-2_71, rel-2_76, rel-2_77, rel-2_74, rel-2_75
Changes since 1.17:	+1 -1 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.2	package cf::pod;
2
3	root	1.3	use Pod::POM;
4
5	root	1.2	our $indent;
6			our $level;
7			our @result;
8
9			package cf::pod::AsParagraphs;
10
11			use strict;
12
13			use base "Pod::POM::View";
14
15	root	1.15	my %E = (
16			"<" => "E<lt>",
17			">" => "E<gt>",
18			);
19
20	root	1.14	sub aspod($) {
21	root	1.2	local $_ = $_[0];
22
23	root	1.15	s/[<>]/$E{$1}/g;
24	root	1.2
25			$_
26			}
27
28	root	1.5	sub flatten($) {
29			local $_ = $_[0];
30
31			s/^\s+//;
32			s/\s+$//;
33			s/\s+/ /g;
34
35			$_
36			}
37
38	root	1.17	*view_seq_file = sub { "C<$_[1]>" };
39			*view_seq_code = sub { "C<$_[1]>" };
40	root	1.13	*view_seq_bold = sub { "B<$_[1]>" };
41			*view_seq_italic = sub { "I<$_[1]>" };
42	root	1.14	*view_seq_zero = sub { "Z<>" };
43	root	1.2	*view_seq_space = sub { my $text = $_[1]; $text =~ s/ /\xa0/g; $text };
44			*view_seq_index = sub { push @{ $result[-1]{index} }, $_[1]; "" };
45
46			sub view_seq_text {
47			my $text = $_[1];
48			$text =~ s/\s+/ /g;
49	root	1.14	aspod $text
50	root	1.2	}
51
52			sub view_seq_link {
53			my (undef, $link) = @_;
54
55			my $text = $link =~ s/^(.*)\\|// ? $1 : $link;
56
57			if ($link =~ /http:/) {
58	root	1.15	"U<" . (aspod $link) . ">"
59	root	1.2	} else {
60			()
61			}
62			}
63
64			sub view_item {
65			push @result, {
66	root	1.5	type => "item",
67	root	1.2	indent => $indent * 8,
68			level => $level,
69			};
70			my $title = $_[1]->title->present ($_[0]);
71	root	1.5	$result[-1]{markup} = $title if length $title;
72			$title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
73	root	1.2	local $level = $level + 1;
74			$_[1]->content->present ($_[0]);
75			()
76			}
77
78			sub view_verbatim {
79			push @result, {
80	root	1.5	type => "verbatim",
81	root	1.2	indent => $indent * 16,
82			level => $level,
83	root	1.13	markup => $_[1],
84	root	1.2	};
85			()
86			}
87
88			sub view_textblock {
89			push @result, {
90			indent => $indent * 16,
91			level => $level,
92	root	1.6	markup => flatten $_[1],
93	root	1.2	};
94			()
95			}
96
97			sub view_head1 {
98			push @result, {
99	root	1.5	type => "head1",
100	root	1.2	indent => $indent * 16,
101			level => $level,
102			};
103			my $title = $_[1]->title->present ($_[0]);
104	root	1.5	$result[-1]{markup} = $title if length $title;
105			$title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
106	root	1.2	local $level = $level + 1;
107			$_[1]->content->present ($_[0]);
108			()
109			};
110
111			sub view_head2 {
112			push @result, {
113	root	1.5	type => "head2",
114	root	1.2	indent => $indent * 16,
115			level => $level,
116			};
117			my $title = $_[1]->title->present ($_[0]);
118	root	1.5	$result[-1]{markup} = $title if length $title;
119			$title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
120	root	1.2	local $level = $level + 1;
121			$_[1]->content->present ($_[0]);
122			()
123			};
124
125			sub view_head3 {
126			push @result, {
127	root	1.5	type => "head3",
128	root	1.2	indent => $indent * 16,
129			level => $level,
130			};
131			my $title = $_[1]->title->present ($_[0]);
132	root	1.5	$result[-1]{markup} = $title if length $title;
133			$title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
134	root	1.2	local $level = $level + 1;
135			$_[1]->content->present ($_[0]);
136			()
137			};
138
139			sub view_over {
140			local $indent = $indent + $_[1]->indent;
141			push @result, { indent => $indent };
142			$_[1]->content->present ($_[0]);
143			()
144			}
145
146			sub view_for {
147			if ($_[1]->format eq "image") {
148			# push @result, {
149			# indent => $indent * 16,
150			# level => $level,
151			# markup => (::special image => "pod/" . $_->text),
152			# };
153			}
154			()
155			}
156
157			sub view_begin {
158			()
159			}
160
161			sub view {
162			my ($self, $type, $item) = @_;
163
164			$item->content->present ($self);
165			}
166
167			#############################################################################
168
169			package cf::pod;
170
171	root	1.3	sub pom_as_paragraphs($) {
172	root	1.2	my ($pom) = @_;
173
174			# we suckers use global variables, unfortunately.
175			my $guard = cf::lock_acquire "cf::pod::as_paragraphs";
176
177			local $indent = 0;
178			local $level = 1;
179			local @result = ( { } );
180
181			$pom->present ("cf::pod::AsParagraphs");
182
183			[grep $_->{index} \|\| exists $_->{markup}, @result]
184			}
185
186	root	1.3	sub load_pod($) {
187			my ($path) = @_;
188
189	root	1.4	Coro::Storable::thaw cf::cache "cf::pod::as_paragraphs/$path" => [$path],
190	root	1.18	7 => sub {
191	root	1.4	my ($src) = @_;
192	root	1.12
193	root	1.5	cf::fork_call {
194	root	1.4	my $pod = $src->[0];
195			utf8::decode $pod;
196	root	1.12	Coro::Storable::blocking_nfreeze pom_as_paragraphs +(Pod::POM->new->parse_text ($pod))
197	root	1.4	}
198			};
199	root	1.3	}
200
201	root	1.8	# format as cfpod-style text
202	root	1.11	sub as_cfpod($) {
203	root	1.6	my ($pars) = @_;
204
205			my $res;
206
207			for my $par (@$pars) {
208			if ($par->{type} =~ /^head\d+$/) {
209	root	1.8	$res .= "B<$par->{markup}>\n\n";
210	root	1.6	} elsif ($par->{type} eq "verbatim") {
211	root	1.16	$res .= "$par->{markup}\n\n";
212	root	1.6	} elsif ($par->{type} eq "item") {
213	root	1.16	$res .= "* I<$par->{markup}>\n\n";
214	root	1.6	} else {
215	root	1.8	$res .= "$par->{markup}\n\n";
216	root	1.6	}
217			}
218
219			$res
220			}
221
222	root	1.2	1;
223