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";

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;

Revision:	1.13
Committed:	Sun Aug 31 09:03:31 2008 UTC (15 years, 10 months ago) by root
Branch:	MAIN
Changes since 1.12:	+7 -8 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 $level;
7			our @result;
8
9			package cf::pod::AsParagraphs;
10
11			use strict;
12
13			use base "Pod::POM::View";
14
15			sub asxml($) {
16			local $_ = $_[0];
17
18	root	1.13	s/</E<lt>/g;
19			s/>/E<gt>/g;
20	root	1.2
21			$_
22			}
23
24	root	1.5	sub flatten($) {
25			local $_ = $_[0];
26
27			s/<[^>]+>//g;
28			s/^\s+//;
29			s/\s+$//;
30			s/\s+/ /g;
31
32			$_
33			}
34
35	root	1.2	*view_seq_file =
36			*view_seq_code =
37	root	1.13	*view_seq_bold = sub { "B<$_[1]>" };
38			*view_seq_italic = sub { "I<$_[1]>" };
39	root	1.2	*view_seq_zero = sub { };
40			*view_seq_space = sub { my $text = $_[1]; $text =~ s/ /\xa0/g; $text };
41			*view_seq_index = sub { push @{ $result[-1]{index} }, $_[1]; "" };
42
43			sub view_seq_text {
44			my $text = $_[1];
45			$text =~ s/\s+/ /g;
46	root	1.5	asxml $text
47	root	1.2	}
48
49			sub view_seq_link {
50			my (undef, $link) = @_;
51
52			my $text = $link =~ s/^(.*)\\|// ? $1 : $link;
53
54			if ($link =~ /http:/) {
55	root	1.13	"U<" . (asxml $link) . ">"
56	root	1.2	} else {
57			()
58			}
59			}
60
61			sub view_item {
62			push @result, {
63	root	1.5	type => "item",
64	root	1.2	indent => $indent * 8,
65			level => $level,
66			};
67			my $title = $_[1]->title->present ($_[0]);
68	root	1.5	$result[-1]{markup} = $title if length $title;
69			$title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
70	root	1.2	local $level = $level + 1;
71			$_[1]->content->present ($_[0]);
72			()
73			}
74
75			sub view_verbatim {
76			push @result, {
77	root	1.5	type => "verbatim",
78	root	1.2	indent => $indent * 16,
79			level => $level,
80	root	1.13	markup => $_[1],
81	root	1.2	};
82			()
83			}
84
85			sub view_textblock {
86			push @result, {
87			indent => $indent * 16,
88			level => $level,
89	root	1.6	markup => flatten $_[1],
90	root	1.2	};
91			()
92			}
93
94			sub view_head1 {
95			push @result, {
96	root	1.5	type => "head1",
97	root	1.2	indent => $indent * 16,
98			level => $level,
99			};
100			my $title = $_[1]->title->present ($_[0]);
101	root	1.5	$result[-1]{markup} = $title if length $title;
102			$title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
103	root	1.2	local $level = $level + 1;
104			$_[1]->content->present ($_[0]);
105			()
106			};
107
108			sub view_head2 {
109			push @result, {
110	root	1.5	type => "head2",
111	root	1.2	indent => $indent * 16,
112			level => $level,
113			};
114			my $title = $_[1]->title->present ($_[0]);
115	root	1.5	$result[-1]{markup} = $title if length $title;
116			$title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
117	root	1.2	local $level = $level + 1;
118			$_[1]->content->present ($_[0]);
119			()
120			};
121
122			sub view_head3 {
123			push @result, {
124	root	1.5	type => "head3",
125	root	1.2	indent => $indent * 16,
126			level => $level,
127			};
128			my $title = $_[1]->title->present ($_[0]);
129	root	1.5	$result[-1]{markup} = $title if length $title;
130			$title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
131	root	1.2	local $level = $level + 1;
132			$_[1]->content->present ($_[0]);
133			()
134			};
135
136			sub view_over {
137			local $indent = $indent + $_[1]->indent;
138			push @result, { indent => $indent };
139			$_[1]->content->present ($_[0]);
140			()
141			}
142
143			sub view_for {
144			if ($_[1]->format eq "image") {
145			# push @result, {
146			# indent => $indent * 16,
147			# level => $level,
148			# markup => (::special image => "pod/" . $_->text),
149			# };
150			}
151			()
152			}
153
154			sub view_begin {
155			()
156			}
157
158			sub view {
159			my ($self, $type, $item) = @_;
160
161			$item->content->present ($self);
162			}
163
164			#############################################################################
165
166			package cf::pod;
167
168	root	1.3	sub pom_as_paragraphs($) {
169	root	1.2	my ($pom) = @_;
170
171			# we suckers use global variables, unfortunately.
172			my $guard = cf::lock_acquire "cf::pod::as_paragraphs";
173
174			local $indent = 0;
175			local $level = 1;
176			local @result = ( { } );
177
178			$pom->present ("cf::pod::AsParagraphs");
179
180			[grep $_->{index} \|\| exists $_->{markup}, @result]
181			}
182
183	root	1.3	sub load_pod($) {
184			my ($path) = @_;
185
186	root	1.4	Coro::Storable::thaw cf::cache "cf::pod::as_paragraphs/$path" => [$path],
187	root	1.13	3 => sub {
188	root	1.4	my ($src) = @_;
189	root	1.12
190	root	1.5	cf::fork_call {
191	root	1.4	my $pod = $src->[0];
192			utf8::decode $pod;
193	root	1.12	Coro::Storable::blocking_nfreeze pom_as_paragraphs +(Pod::POM->new->parse_text ($pod))
194	root	1.4	}
195			};
196	root	1.3	}
197
198	root	1.8	# format as cfpod-style text
199	root	1.11	sub as_cfpod($) {
200	root	1.6	my ($pars) = @_;
201
202			my $res;
203
204			for my $par (@$pars) {
205			if ($par->{type} =~ /^head\d+$/) {
206	root	1.8	$res .= "B<$par->{markup}>\n\n";
207	root	1.6	} elsif ($par->{type} eq "verbatim") {
208			$res .= "\n$par->{markup}\n\n";
209			} elsif ($par->{type} eq "item") {
210	root	1.8	$res .= "\n* I<$par->{markup}>\n\n";
211	root	1.6	} else {
212	root	1.8	$res .= "$par->{markup}\n\n";
213	root	1.6	}
214			}
215
216			$res
217			}
218
219	root	1.2	1;
220