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_T      = sub { "T<$_[1]>" };
*view_seq_G      = sub { "G<$_[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:	1.19
Committed:	Mon Mar 30 13:38:15 2009 UTC (15 years, 3 months ago) by root
Branch:	MAIN
CVS Tags:	rel-2_81, rel-2_80, rel-2_79, rel-2_78
Changes since 1.18:	+2 -0 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<$_[1]>" };
42	root	1.19	*view_seq_T = sub { "T<$_[1]>" };
43			*view_seq_G = sub { "G<$_[1]>" };
44	root	1.14	*view_seq_zero = sub { "Z<>" };
45	root	1.2	*view_seq_space = sub { my $text = $_[1]; $text =~ s/ /\xa0/g; $text };
46			*view_seq_index = sub { push @{ $result[-1]{index} }, $_[1]; "" };
47
48			sub view_seq_text {
49			my $text = $_[1];
50			$text =~ s/\s+/ /g;
51	root	1.14	aspod $text
52	root	1.2	}
53
54			sub view_seq_link {
55			my (undef, $link) = @_;
56
57			my $text = $link =~ s/^(.*)\\|// ? $1 : $link;
58
59			if ($link =~ /http:/) {
60	root	1.15	"U<" . (aspod $link) . ">"
61	root	1.2	} else {
62			()
63			}
64			}
65
66			sub view_item {
67			push @result, {
68	root	1.5	type => "item",
69	root	1.2	indent => $indent * 8,
70			level => $level,
71			};
72			my $title = $_[1]->title->present ($_[0]);
73	root	1.5	$result[-1]{markup} = $title if length $title;
74			$title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
75	root	1.2	local $level = $level + 1;
76			$_[1]->content->present ($_[0]);
77			()
78			}
79
80			sub view_verbatim {
81			push @result, {
82	root	1.5	type => "verbatim",
83	root	1.2	indent => $indent * 16,
84			level => $level,
85	root	1.13	markup => $_[1],
86	root	1.2	};
87			()
88			}
89
90			sub view_textblock {
91			push @result, {
92			indent => $indent * 16,
93			level => $level,
94	root	1.6	markup => flatten $_[1],
95	root	1.2	};
96			()
97			}
98
99			sub view_head1 {
100			push @result, {
101	root	1.5	type => "head1",
102	root	1.2	indent => $indent * 16,
103			level => $level,
104			};
105			my $title = $_[1]->title->present ($_[0]);
106	root	1.5	$result[-1]{markup} = $title if length $title;
107			$title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
108	root	1.2	local $level = $level + 1;
109			$_[1]->content->present ($_[0]);
110			()
111			};
112
113			sub view_head2 {
114			push @result, {
115	root	1.5	type => "head2",
116	root	1.2	indent => $indent * 16,
117			level => $level,
118			};
119			my $title = $_[1]->title->present ($_[0]);
120	root	1.5	$result[-1]{markup} = $title if length $title;
121			$title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
122	root	1.2	local $level = $level + 1;
123			$_[1]->content->present ($_[0]);
124			()
125			};
126
127			sub view_head3 {
128			push @result, {
129	root	1.5	type => "head3",
130	root	1.2	indent => $indent * 16,
131			level => $level,
132			};
133			my $title = $_[1]->title->present ($_[0]);
134	root	1.5	$result[-1]{markup} = $title if length $title;
135			$title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
136	root	1.2	local $level = $level + 1;
137			$_[1]->content->present ($_[0]);
138			()
139			};
140
141			sub view_over {
142			local $indent = $indent + $_[1]->indent;
143			push @result, { indent => $indent };
144			$_[1]->content->present ($_[0]);
145			()
146			}
147
148			sub view_for {
149			if ($_[1]->format eq "image") {
150			# push @result, {
151			# indent => $indent * 16,
152			# level => $level,
153			# markup => (::special image => "pod/" . $_->text),
154			# };
155			}
156			()
157			}
158
159			sub view_begin {
160			()
161			}
162
163			sub view {
164			my ($self, $type, $item) = @_;
165
166			$item->content->present ($self);
167			}
168
169			#############################################################################
170
171			package cf::pod;
172
173	root	1.3	sub pom_as_paragraphs($) {
174	root	1.2	my ($pom) = @_;
175
176			# we suckers use global variables, unfortunately.
177			my $guard = cf::lock_acquire "cf::pod::as_paragraphs";
178
179			local $indent = 0;
180			local $level = 1;
181			local @result = ( { } );
182
183			$pom->present ("cf::pod::AsParagraphs");
184
185			[grep $_->{index} \|\| exists $_->{markup}, @result]
186			}
187
188	root	1.3	sub load_pod($) {
189			my ($path) = @_;
190
191	root	1.4	Coro::Storable::thaw cf::cache "cf::pod::as_paragraphs/$path" => [$path],
192	root	1.18	7 => sub {
193	root	1.4	my ($src) = @_;
194	root	1.12
195	root	1.5	cf::fork_call {
196	root	1.4	my $pod = $src->[0];
197			utf8::decode $pod;
198	root	1.12	Coro::Storable::blocking_nfreeze pom_as_paragraphs +(Pod::POM->new->parse_text ($pod))
199	root	1.4	}
200			};
201	root	1.3	}
202
203	root	1.8	# format as cfpod-style text
204	root	1.11	sub as_cfpod($) {
205	root	1.6	my ($pars) = @_;
206
207			my $res;
208
209			for my $par (@$pars) {
210			if ($par->{type} =~ /^head\d+$/) {
211	root	1.8	$res .= "B<$par->{markup}>\n\n";
212	root	1.6	} elsif ($par->{type} eq "verbatim") {
213	root	1.16	$res .= "$par->{markup}\n\n";
214	root	1.6	} elsif ($par->{type} eq "item") {
215	root	1.16	$res .= "* I<$par->{markup}>\n\n";
216	root	1.6	} else {
217	root	1.8	$res .= "$par->{markup}\n\n";
218	root	1.6	}
219			}
220
221			$res
222			}
223
224	root	1.2	1;
225