1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
# Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the OpenSSL license (the "License"). You may not use
# this file except in compliance with the License. You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html
package OpenSSL::Util::Pod;
use strict;
use warnings;
use Exporter;
use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
$VERSION = "0.1";
@ISA = qw(Exporter);
@EXPORT = qw(extract_pod_info);
@EXPORT_OK = qw();
=head1 NAME
OpenSSL::Util::Pod - utilities to manipulate .pod files
=head1 SYNOPSIS
use OpenSSL::Util::Pod;
my %podinfo = extract_pod_info("foo.pod");
# or if the file is already opened... Note that this consumes the
# remainder of the file.
my %podinfo = extract_pod_info(\*STDIN);
=head1 DESCRIPTION
=over
=item B<extract_pod_info "FILENAME", HASHREF>
=item B<extract_pod_info "FILENAME">
=item B<extract_pod_info GLOB, HASHREF>
=item B<extract_pod_info GLOB>
Extracts information from a .pod file, given a STRING (file name) or a
GLOB (a file handle). The result is given back as a hash table.
The additional hash is for extra parameters:
=over
=item B<section =E<gt> N>
The value MUST be a number, and will be the man section number
to be used with the given .pod file.
=item B<debug =E<gt> 0|1>
If set to 1, extra debug text will be printed on STDERR
=back
=back
=head1 RETURN VALUES
=over
=item B<extract_pod_info> returns a hash table with the following
items:
=over
=item B<section =E<gt> N>
The man section number this .pod file belongs to. Often the same as
was given as input.
=item B<names =E<gt> [ "name", ... ]>
All the names extracted from the NAME section.
=back
=back
=cut
sub extract_pod_info {
my $input = shift;
my $defaults_ref = shift || {};
my %defaults = ( debug => 0, section => 0, %$defaults_ref );
my $fh = undef;
my $filename = undef;
# If not a file handle, then it's assume to be a file path (a string)
unless (ref $input eq "GLOB") {
$filename = $input;
open $fh, $input or die "Trying to read $filename: $!\n";
print STDERR "DEBUG: Reading $input\n" if $defaults{debug};
$input = $fh;
}
my %podinfo = ( section => $defaults{section});
while(<$input>) {
s|\R$||;
# Stop reading when we have reached past the NAME section.
last if (m|^=head1|
&& defined $podinfo{lastsect}
&& $podinfo{lastsect} eq "NAME");
# Collect the section name
if (m|^=head1\s*(.*)|) {
$podinfo{lastsect} = $1;
$podinfo{lastsect} =~ s/\s+$//;
print STDERR "DEBUG: Found new pod section $1\n"
if $defaults{debug};
print STDERR "DEBUG: Clearing pod section text\n"
if $defaults{debug};
$podinfo{lastsecttext} = "";
}
next if (m|^=| || m|^\s*$|);
# Collect the section text
print STDERR "DEBUG: accumulating pod section text \"$_\"\n"
if $defaults{debug};
$podinfo{lastsecttext} .= " " if $podinfo{lastsecttext};
$podinfo{lastsecttext} .= $_;
}
if (defined $fh) {
close $fh;
print STDERR "DEBUG: Done reading $filename\n" if $defaults{debug};
}
$podinfo{lastsecttext} =~ s| - .*$||;
my @names =
map { s|\s+||g; $_ }
split(m|,|, $podinfo{lastsecttext});
return ( section => $podinfo{section}, names => [ @names ] );
}
1;
|
