lib/cf/pod.pm

package cf::pod;

use common::sense;

use Pod::POM;

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

package cf::pod::AsParagraphs;

use common::sense;

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:	1.20
Committed:	Wed Oct 21 00:44:39 2009 UTC (14 years, 8 months ago) by root
Branch:	MAIN
CVS Tags:	rel-2_82
Changes since 1.19:	+3 -1 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.2	package cf::pod;
2
3	root	1.20	use common::sense;
4
5	root	1.3	use Pod::POM;
6
7	root	1.2	our $indent;
8			our $level;
9			our @result;
10
11			package cf::pod::AsParagraphs;
12
13	root	1.20	use common::sense;
14	root	1.2
15			use base "Pod::POM::View";
16
17	root	1.15	my %E = (
18			"<" => "E<lt>",
19			">" => "E<gt>",
20			);
21
22	root	1.14	sub aspod($) {
23	root	1.2	local $_ = $_[0];
24
25	root	1.15	s/[<>]/$E{$1}/g;
26	root	1.2
27			$_
28			}
29
30	root	1.5	sub flatten($) {
31			local $_ = $_[0];
32
33			s/^\s+//;
34			s/\s+$//;
35			s/\s+/ /g;
36
37			$_
38			}
39
40	root	1.17	*view_seq_file = sub { "C<$_[1]>" };
41			*view_seq_code = sub { "C<$_[1]>" };
42	root	1.13	*view_seq_bold = sub { "B<$_[1]>" };
43			*view_seq_italic = sub { "I<$_[1]>" };
44	root	1.19	*view_seq_T = sub { "T<$_[1]>" };
45			*view_seq_G = sub { "G<$_[1]>" };
46	root	1.14	*view_seq_zero = sub { "Z<>" };
47	root	1.2	*view_seq_space = sub { my $text = $_[1]; $text =~ s/ /\xa0/g; $text };
48			*view_seq_index = sub { push @{ $result[-1]{index} }, $_[1]; "" };
49
50			sub view_seq_text {
51			my $text = $_[1];
52			$text =~ s/\s+/ /g;
53	root	1.14	aspod $text
54	root	1.2	}
55
56			sub view_seq_link {
57			my (undef, $link) = @_;
58
59			my $text = $link =~ s/^(.*)\\|// ? $1 : $link;
60
61			if ($link =~ /http:/) {
62	root	1.15	"U<" . (aspod $link) . ">"
63	root	1.2	} else {
64			()
65			}
66			}
67
68			sub view_item {
69			push @result, {
70	root	1.5	type => "item",
71	root	1.2	indent => $indent * 8,
72			level => $level,
73			};
74			my $title = $_[1]->title->present ($_[0]);
75	root	1.5	$result[-1]{markup} = $title if length $title;
76			$title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
77	root	1.2	local $level = $level + 1;
78			$_[1]->content->present ($_[0]);
79			()
80			}
81
82			sub view_verbatim {
83			push @result, {
84	root	1.5	type => "verbatim",
85	root	1.2	indent => $indent * 16,
86			level => $level,
87	root	1.13	markup => $_[1],
88	root	1.2	};
89			()
90			}
91
92			sub view_textblock {
93			push @result, {
94			indent => $indent * 16,
95			level => $level,
96	root	1.6	markup => flatten $_[1],
97	root	1.2	};
98			()
99			}
100
101			sub view_head1 {
102			push @result, {
103	root	1.5	type => "head1",
104	root	1.2	indent => $indent * 16,
105			level => $level,
106			};
107			my $title = $_[1]->title->present ($_[0]);
108	root	1.5	$result[-1]{markup} = $title if length $title;
109			$title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
110	root	1.2	local $level = $level + 1;
111			$_[1]->content->present ($_[0]);
112			()
113			};
114
115			sub view_head2 {
116			push @result, {
117	root	1.5	type => "head2",
118	root	1.2	indent => $indent * 16,
119			level => $level,
120			};
121			my $title = $_[1]->title->present ($_[0]);
122	root	1.5	$result[-1]{markup} = $title if length $title;
123			$title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
124	root	1.2	local $level = $level + 1;
125			$_[1]->content->present ($_[0]);
126			()
127			};
128
129			sub view_head3 {
130			push @result, {
131	root	1.5	type => "head3",
132	root	1.2	indent => $indent * 16,
133			level => $level,
134			};
135			my $title = $_[1]->title->present ($_[0]);
136	root	1.5	$result[-1]{markup} = $title if length $title;
137			$title = flatten $title; unshift @{ $result[-1]{index} }, $title if length $title;
138	root	1.2	local $level = $level + 1;
139			$_[1]->content->present ($_[0]);
140			()
141			};
142
143			sub view_over {
144			local $indent = $indent + $_[1]->indent;
145			push @result, { indent => $indent };
146			$_[1]->content->present ($_[0]);
147			()
148			}
149
150			sub view_for {
151			if ($_[1]->format eq "image") {
152			# push @result, {
153			# indent => $indent * 16,
154			# level => $level,
155			# markup => (::special image => "pod/" . $_->text),
156			# };
157			}
158			()
159			}
160
161			sub view_begin {
162			()
163			}
164
165			sub view {
166			my ($self, $type, $item) = @_;
167
168			$item->content->present ($self);
169			}
170
171			#############################################################################
172
173			package cf::pod;
174
175	root	1.3	sub pom_as_paragraphs($) {
176	root	1.2	my ($pom) = @_;
177
178			# we suckers use global variables, unfortunately.
179			my $guard = cf::lock_acquire "cf::pod::as_paragraphs";
180
181			local $indent = 0;
182			local $level = 1;
183			local @result = ( { } );
184
185			$pom->present ("cf::pod::AsParagraphs");
186
187			[grep $_->{index} \|\| exists $_->{markup}, @result]
188			}
189
190	root	1.3	sub load_pod($) {
191			my ($path) = @_;
192
193	root	1.4	Coro::Storable::thaw cf::cache "cf::pod::as_paragraphs/$path" => [$path],
194	root	1.18	7 => sub {
195	root	1.4	my ($src) = @_;
196	root	1.12
197	root	1.5	cf::fork_call {
198	root	1.4	my $pod = $src->[0];
199			utf8::decode $pod;
200	root	1.12	Coro::Storable::blocking_nfreeze pom_as_paragraphs +(Pod::POM->new->parse_text ($pod))
201	root	1.4	}
202			};
203	root	1.3	}
204
205	root	1.8	# format as cfpod-style text
206	root	1.11	sub as_cfpod($) {
207	root	1.6	my ($pars) = @_;
208
209			my $res;
210
211			for my $par (@$pars) {
212			if ($par->{type} =~ /^head\d+$/) {
213	root	1.8	$res .= "B<$par->{markup}>\n\n";
214	root	1.6	} elsif ($par->{type} eq "verbatim") {
215	root	1.16	$res .= "$par->{markup}\n\n";
216	root	1.6	} elsif ($par->{type} eq "item") {
217	root	1.16	$res .= "* I<$par->{markup}>\n\n";
218	root	1.6	} else {
219	root	1.8	$res .= "$par->{markup}\n\n";
220	root	1.6	}
221			}
222
223			$res
224			}
225
226	root	1.2	1;
227