Scroll to navigation

Pod::Simple::HTML(3perl) Perl Programmers Reference Guide Pod::Simple::HTML(3perl)
 

NAME

Pod::Simple::HTML - convert Pod to HTML

SYNOPSIS

  perl -MPod::Simple::HTML -e Pod::Simple::HTML::go thingy.pod

DESCRIPTION

This class is for making an HTML rendering of a Pod document.
This is a subclass of Pod::Simple::PullParser and inherits all its methods (and options).
Note that if you want to do a batch conversion of a lot of Pod documents to HTML, you should see the module Pod::Simple::HTMLBatch.

CALLING FROM THE COMMAND LINE

TODO
  perl -MPod::Simple::HTML -e Pod::Simple::HTML::go Thing.pod Thing.html

CALLING FROM PERL

Minimal code

  use Pod::Simple::HTML;
  my $p = Pod::Simple::HTML->new;
  $p->output_string(\my $html);
  $p->parse_file('path/to/Module/Name.pm');
  open my $out, '>', 'out.html' or die "Cannot open 'out.html': $!\n";
  print $out $html;

More detailed example

  use Pod::Simple::HTML;
Set the content type:
  $Pod::Simple::HTML::Content_decl =  q{<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" >};
  my $p = Pod::Simple::HTML->new;
Include a single javascript source:
  $p->html_javascript('http://abc.com/a.js');
Or insert multiple javascript source in the header (or for that matter include anything, thought this is not recommended)
  $p->html_javascript('
      <script type="text/javascript" src="http://abc.com/b.js"></script>
      <script type="text/javascript" src="http://abc.com/c.js"></script>');
Include a single css source in the header:
  $p->html_css('/style.css');
or insert multiple css sources:
  $p->html_css('
      <link rel="stylesheet" type="text/css" title="pod_stylesheet" href="http://remote.server.com/jquery.css">
      <link rel="stylesheet" type="text/css" title="pod_stylesheet" href="/style.css">');
Tell the parser where should the output go. In this case it will be placed in the $html variable:
  my $html;
  $p->output_string(\$html);
Parse and process a file with pod in it:
  $p->parse_file('path/to/Module/Name.pm');

METHODS

TODO all (most?) accessorized methods
The following variables need to be set before the call to the ->new constructor.
Set the string that is included before the opening <html> tag:
  $Pod::Simple::HTML::Doctype_decl = qq{<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" 
         "http://www.w3.org/TR/html4/loose.dtd">\n};
Set the content-type in the HTML head: (defaults to ISO-8859-1)
  $Pod::Simple::HTML::Content_decl =  q{<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" >};
Set the value that will be ebedded in the opening tags of F, C tags and verbatim text. F maps to <em>, C maps to <code>, Verbatim text maps to <pre> (Computerese defaults to "")
  $Pod::Simple::HTML::Computerese =  ' class="some_class_name';

html_css

html_javascript

title_prefix

title_postfix

html_header_before_title

This includes everything before the <title> opening tag including the Document type and including the opening <title> tag. The following call will set it to be a simple HTML file:
  $p->html_header_before_title('<html><head><title>');

html_h_level

Normally =head1 will become <h1>, =head2 will become <h2> etc. Using the html_h_level method will change these levels setting the h level of =head1 tags:
  $p->html_h_level(3);
Will make sure that =head1 will become <h3> and =head2 will become <h4> etc...

index

Set it to some true value if you want to have an index (in reality a table of contents) to be added at the top of the generated HTML.
  $p->index(1);

html_header_after_title

Includes the closing tag of </title> and through the rest of the head till the opening of the body
  $p->html_header_after_title('</title>...</head><body id="my_id">');
The very end of the document:
  $p->html_footer( qq[\n<!-- end doc -->\n\n</body></html>\n] );

SUBCLASSING

Can use any of the methods described above but for further customization one needs to override some of the methods:
  package My::Pod;
  use strict;
  use warnings;
  use base 'Pod::Simple::HTML';
  # needs to return a URL string such
  # http://some.other.com/page.html
  # #anchor_in_the_same_file
  # /internal/ref.html
  sub do_pod_link {
    # My::Pod object and Pod::Simple::PullParserStartToken object
    my ($self, $link) = @_;
    say $link->tagname;          # will be L for links
    say $link->attr('to');       # 
    say $link->attr('type');     # will be 'pod' always
    say $link->attr('section');
    # Links local to our web site
    if ($link->tagname eq 'L' and $link->attr('type') eq 'pod') {
      my $to = $link->attr('to');
      if ($to =~ /^Padre::/) {
          $to =~ s{::}{/}g;
          return "/docs/Padre/$to.html";
      }
    }
    # all other links are generated by the parent class
    my $ret = $self->SUPER::do_pod_link($link);
    return $ret;
  }
  1;
Meanwhile in script.pl:
  use My::Pod;
  my $p = My::Pod->new;
  my $html;
  $p->output_string(\$html);
  $p->parse_file('path/to/Module/Name.pm');
  open my $out, '>', 'out.html' or die;
  print $out $html;
TODO
maybe override do_beginning do_end

SEE ALSO

Pod::Simple, Pod::Simple::HTMLBatch
TODO: a corpus of sample Pod input and HTML output? Or common idioms?

SUPPORT

Questions or discussion about POD and Pod::Simple should be sent to the pod-people@perl.org mail list. Send an empty email to pod-people-subscribe@perl.org to subscribe.
This module is managed in an open GitHub repository, <https://github.com/theory/pod-simple/>. Feel free to fork and contribute, or to clone <git://github.com/theory/pod-simple.git> and send patches!
Patches against Pod::Simple are welcome. Please send bug reports to <bug-pod-simple@rt.cpan.org>.

COPYRIGHT AND DISCLAIMERS

Copyright (c) 2002-2004 Sean M. Burke.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
This program is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose.

ACKNOWLEDGEMENTS

Thanks to Hurricane Electric <http://he.net/> for permission to use its Linux man pages online <http://man.he.net/> site for man page links.
Thanks to search.cpan.org <http://search.cpan.org/> for permission to use the site for Perl module links.

AUTHOR

Pod::Simple was created by Sean M. Burke <sburke@cpan.org>. But don't bother him, he's retired.
Pod::Simple is maintained by:
Allison Randal "allison@perl.org"
Hans Dieter Pearcey "hdp@cpan.org"
David E. Wheeler "dwheeler@cpan.org"
2014-12-27 perl v5.20.2