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

   s/</E<lt>/g;
   s/>/E<gt>/g;

   $_
}

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

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

   $_
}

*view_seq_file   = sub { "B<$_[1]>" };
*view_seq_code   = sub { "B<$_[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<" . (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],
      4 => 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:	1.14
Committed:	Sat Sep 6 20:06:10 2008 UTC (15 years, 10 months ago) by root
Branch:	MAIN
CVS Tags:	rel-2_7
Changes since 1.13:	+6 -7 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 $level;
7			our @result;
8
9			package cf::pod::AsParagraphs;
10
11			use strict;
12
13			use base "Pod::POM::View";
14
15	root	1.14	sub aspod($) {
16	root	1.2	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 $_ = $_[0];
26
27			s/^\s+//;
28			s/\s+$//;
29			s/\s+/ /g;
30
31			$_
32			}
33
34	root	1.14	*view_seq_file = sub { "B<$_[1]>" };
35			*view_seq_code = sub { "B<$_[1]>" };
36	root	1.13	*view_seq_bold = sub { "B<$_[1]>" };
37			*view_seq_italic = sub { "I<$_[1]>" };
38	root	1.14	*view_seq_zero = sub { "Z<>" };
39	root	1.2	*view_seq_space = sub { my $text = $_[1]; $text =~ s/ /\xa0/g; $text };
40			*view_seq_index = sub { push @{ $result[-1]{index} }, $_[1]; "" };
41
42			sub view_seq_text {
43			my $text = $_[1];
44			$text =~ s/\s+/ /g;
45	root	1.14	aspod $text
46	root	1.2	}
47
48			sub view_seq_link {
49			my (undef, $link) = @_;
50
51			my $text = $link =~ s/^(.*)\\|// ? $1 : $link;
52
53			if ($link =~ /http:/) {
54	root	1.13	"U<" . (asxml $link) . ">"
55	root	1.2	} else {
56			()
57			}
58			}
59
60			sub view_item {
61			push @result, {
62	root	1.5	type => "item",
63	root	1.2	indent => $indent * 8,
64			level => $level,
65			};
66			my $title = $_[1]->title->present ($_[0]);
67	root	1.5	$result[-1]{markup} = $title if length $title;
68			$title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
69	root	1.2	local $level = $level + 1;
70			$_[1]->content->present ($_[0]);
71			()
72			}
73
74			sub view_verbatim {
75			push @result, {
76	root	1.5	type => "verbatim",
77	root	1.2	indent => $indent * 16,
78			level => $level,
79	root	1.13	markup => $_[1],
80	root	1.2	};
81			()
82			}
83
84			sub view_textblock {
85			push @result, {
86			indent => $indent * 16,
87			level => $level,
88	root	1.6	markup => flatten $_[1],
89	root	1.2	};
90			()
91			}
92
93			sub view_head1 {
94			push @result, {
95	root	1.5	type => "head1",
96	root	1.2	indent => $indent * 16,
97			level => $level,
98			};
99			my $title = $_[1]->title->present ($_[0]);
100	root	1.5	$result[-1]{markup} = $title if length $title;
101			$title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
102	root	1.2	local $level = $level + 1;
103			$_[1]->content->present ($_[0]);
104			()
105			};
106
107			sub view_head2 {
108			push @result, {
109	root	1.5	type => "head2",
110	root	1.2	indent => $indent * 16,
111			level => $level,
112			};
113			my $title = $_[1]->title->present ($_[0]);
114	root	1.5	$result[-1]{markup} = $title if length $title;
115			$title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
116	root	1.2	local $level = $level + 1;
117			$_[1]->content->present ($_[0]);
118			()
119			};
120
121			sub view_head3 {
122			push @result, {
123	root	1.5	type => "head3",
124	root	1.2	indent => $indent * 16,
125			level => $level,
126			};
127			my $title = $_[1]->title->present ($_[0]);
128	root	1.5	$result[-1]{markup} = $title if length $title;
129			$title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
130	root	1.2	local $level = $level + 1;
131			$_[1]->content->present ($_[0]);
132			()
133			};
134
135			sub view_over {
136			local $indent = $indent + $_[1]->indent;
137			push @result, { indent => $indent };
138			$_[1]->content->present ($_[0]);
139			()
140			}
141
142			sub view_for {
143			if ($_[1]->format eq "image") {
144			# push @result, {
145			# indent => $indent * 16,
146			# level => $level,
147			# markup => (::special image => "pod/" . $_->text),
148			# };
149			}
150			()
151			}
152
153			sub view_begin {
154			()
155			}
156
157			sub view {
158			my ($self, $type, $item) = @_;
159
160			$item->content->present ($self);
161			}
162
163			#############################################################################
164
165			package cf::pod;
166
167	root	1.3	sub pom_as_paragraphs($) {
168	root	1.2	my ($pom) = @_;
169
170			# we suckers use global variables, unfortunately.
171			my $guard = cf::lock_acquire "cf::pod::as_paragraphs";
172
173			local $indent = 0;
174			local $level = 1;
175			local @result = ( { } );
176
177			$pom->present ("cf::pod::AsParagraphs");
178
179			[grep $_->{index} \|\| exists $_->{markup}, @result]
180			}
181
182	root	1.3	sub load_pod($) {
183			my ($path) = @_;
184
185	root	1.4	Coro::Storable::thaw cf::cache "cf::pod::as_paragraphs/$path" => [$path],
186	root	1.14	4 => sub {
187	root	1.4	my ($src) = @_;
188	root	1.12
189	root	1.5	cf::fork_call {
190	root	1.4	my $pod = $src->[0];
191			utf8::decode $pod;
192	root	1.12	Coro::Storable::blocking_nfreeze pom_as_paragraphs +(Pod::POM->new->parse_text ($pod))
193	root	1.4	}
194			};
195	root	1.3	}
196
197	root	1.8	# format as cfpod-style text
198	root	1.11	sub as_cfpod($) {
199	root	1.6	my ($pars) = @_;
200
201			my $res;
202
203			for my $par (@$pars) {
204			if ($par->{type} =~ /^head\d+$/) {
205	root	1.8	$res .= "B<$par->{markup}>\n\n";
206	root	1.6	} elsif ($par->{type} eq "verbatim") {
207			$res .= "\n$par->{markup}\n\n";
208			} elsif ($par->{type} eq "item") {
209	root	1.8	$res .= "\n* I<$par->{markup}>\n\n";
210	root	1.6	} else {
211	root	1.8	$res .= "$par->{markup}\n\n";
212	root	1.6	}
213			}
214
215			$res
216			}
217
218	root	1.2	1;
219