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require 5; package Pod::Simple::HTML; use strict; use Pod::Simple::PullParser (); use vars qw( @ISA %Tagmap $Computerese $LamePad $Linearization_Limit $VERSION $Perldoc_URL_Prefix $Perldoc_URL_Postfix $Man_URL_Prefix $Man_URL_Postfix $Title_Prefix $Title_Postfix $HTML_EXTENSION %ToIndex $Doctype_decl $Content_decl ); @ISA = ('Pod::Simple::PullParser'); $VERSION = '3.43'; BEGIN { if(defined &DEBUG) { } # no-op elsif( defined &Pod::Simple::DEBUG ) { *DEBUG = \&Pod::Simple::DEBUG } else { *DEBUG = sub () {0}; } } $Doctype_decl ||= ''; # No. Just No. Don't even ask me for it. # qq{<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" # "http://www.w3.org/TR/html4/loose.dtd">\n}; $Content_decl ||= q{<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" >}; $HTML_EXTENSION = '.html' unless defined $HTML_EXTENSION; $Computerese = "" unless defined $Computerese; $LamePad = '' unless defined $LamePad; $Linearization_Limit = 120 unless defined $Linearization_Limit; # headings/items longer than that won't get an <a name="..."> $Perldoc_URL_Prefix = 'https://metacpan.org/pod/' unless defined $Perldoc_URL_Prefix; $Perldoc_URL_Postfix = '' unless defined $Perldoc_URL_Postfix; $Man_URL_Prefix = 'http://man.he.net/man'; $Man_URL_Postfix = ''; $Title_Prefix = '' unless defined $Title_Prefix; $Title_Postfix = '' unless defined $Title_Postfix; %ToIndex = map {; $_ => 1 } qw(head1 head2 head3 head4 ); # item-text # 'item-text' stuff in the index doesn't quite work, and may # not be a good idea anyhow. __PACKAGE__->_accessorize( 'perldoc_url_prefix', # In turning L<Foo::Bar> into http://whatever/Foo%3a%3aBar, what # to put before the "Foo%3a%3aBar". # (for singleton mode only?) 'perldoc_url_postfix', # what to put after "Foo%3a%3aBar" in the URL. Normally "". 'man_url_prefix', # In turning L<crontab(5)> into http://whatever/man/1/crontab, what # to put before the "1/crontab". 'man_url_postfix', # what to put after the "1/crontab" in the URL. Normally "". 'batch_mode', # whether we're in batch mode 'batch_mode_current_level', # When in batch mode, how deep the current module is: 1 for "LWP", # 2 for "LWP::Procotol", 3 for "LWP::Protocol::GHTTP", etc 'title_prefix', 'title_postfix', # What to put before and after the title in the head. # Should already be &-escaped 'html_h_level', 'html_header_before_title', 'html_header_after_title', 'html_footer', 'top_anchor', 'index', # whether to add an index at the top of each page # (actually it's a table-of-contents, but we'll call it an index, # out of apparently longstanding habit) 'html_css', # URL of CSS file to point to 'html_javascript', # URL of Javascript file to point to 'force_title', # should already be &-escaped 'default_title', # should already be &-escaped ); #~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ my @_to_accept; %Tagmap = ( 'Verbatim' => "\n<pre$Computerese>", '/Verbatim' => "</pre>\n", 'VerbatimFormatted' => "\n<pre$Computerese>", '/VerbatimFormatted' => "</pre>\n", 'VerbatimB' => "<b>", '/VerbatimB' => "</b>", 'VerbatimI' => "<i>", '/VerbatimI' => "</i>", 'VerbatimBI' => "<b><i>", '/VerbatimBI' => "</i></b>", 'Data' => "\n", '/Data' => "\n", 'head1' => "\n<h1>", # And also stick in an <a name="..."> 'head2' => "\n<h2>", # '' 'head3' => "\n<h3>", # '' 'head4' => "\n<h4>", # '' 'head5' => "\n<h5>", # '' 'head6' => "\n<h6>", # '' '/head1' => "</a></h1>\n", '/head2' => "</a></h2>\n", '/head3' => "</a></h3>\n", '/head4' => "</a></h4>\n", '/head5' => "</a></h5>\n", '/head6' => "</a></h6>\n", 'X' => "", changes(qw( Para=p B=b I=i over-bullet=ul over-number=ol over-text=dl over-block=blockquote item-bullet=li item-number=li item-text=dt )), changes2( map {; m/^([-a-z]+)/s && push @_to_accept, $1; $_ } qw[ sample=samp definition=dfn keyboard=kbd variable=var citation=cite abbreviation=abbr acronym=acronym subscript=sub superscript=sup big=big small=small underline=u strikethrough=s preformat=pre teletype=tt ] # no point in providing a way to get <q>...</q>, I think ), '/item-bullet' => "</li>$LamePad\n", '/item-number' => "</li>$LamePad\n", '/item-text' => "</a></dt>$LamePad\n", 'item-body' => "\n<dd>", '/item-body' => "</dd>\n", 'B' => "<b>", '/B' => "</b>", 'I' => "<i>", '/I' => "</i>", 'F' => "<em$Computerese>", '/F' => "</em>", 'C' => "<code$Computerese>", '/C' => "</code>", 'L' => "<a href='YOU_SHOULD_NEVER_SEE_THIS'>", # ideally never used! '/L' => "</a>", ); sub changes { return map {; m/^([-_:0-9a-zA-Z]+)=([-_:0-9a-zA-Z]+)$/s ? ( $1, => "\n<$2>", "/$1", => "</$2>\n" ) : die "Funky $_" } @_; } sub changes2 { return map {; m/^([-_:0-9a-zA-Z]+)=([-_:0-9a-zA-Z]+)$/s ? ( $1, => "<$2>", "/$1", => "</$2>" ) : die "Funky $_" } @_; } #~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ sub go { Pod::Simple::HTML->parse_from_file(@ARGV); exit 0 } # Just so we can run from the command line. No options. # For that, use perldoc! #~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ sub new { my $new = shift->SUPER::new(@_); #$new->nix_X_codes(1); $new->nbsp_for_S(1); $new->accept_targets( 'html', 'HTML' ); $new->accept_codes('VerbatimFormatted'); $new->accept_codes(@_to_accept); DEBUG > 2 and print STDERR "To accept: ", join(' ',@_to_accept), "\n"; $new->perldoc_url_prefix( $Perldoc_URL_Prefix ); $new->perldoc_url_postfix( $Perldoc_URL_Postfix ); $new->man_url_prefix( $Man_URL_Prefix ); $new->man_url_postfix( $Man_URL_Postfix ); $new->title_prefix( $Title_Prefix ); $new->title_postfix( $Title_Postfix ); $new->html_header_before_title( qq[$Doctype_decl<html><head><title>] ); $new->html_header_after_title( join "\n" => "</title>", $Content_decl, "</head>\n<body class='pod'>", $new->version_tag_comment, "\n", ); $new->html_footer( qq[\n\n\n</body></html>\n] ); $new->top_anchor( "<a name='___top' class='dummyTopAnchor' ></a>\n" ); $new->{'Tagmap'} = {%Tagmap}; return $new; } sub __adjust_html_h_levels { my ($self) = @_; my $Tagmap = $self->{'Tagmap'}; my $add = $self->html_h_level; return unless defined $add; return if ($self->{'Adjusted_html_h_levels'}||0) == $add; $add -= 1; for (1 .. 6) { $Tagmap->{"head$_"} =~ s/$_/$_ + $add/e; $Tagmap->{"/head$_"} =~ s/$_/$_ + $add/e; } } sub batch_mode_page_object_init { my($self, $batchconvobj, $module, $infile, $outfile, $depth) = @_; DEBUG and print STDERR "Initting $self\n for $module\n", " in $infile\n out $outfile\n depth $depth\n"; $self->batch_mode(1); $self->batch_mode_current_level($depth); return $self; } sub run { my $self = $_[0]; return $self->do_middle if $self->bare_output; return $self->do_beginning && $self->do_middle && $self->do_end; } #~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ sub do_beginning { my $self = $_[0]; my $title; if(defined $self->force_title) { $title = $self->force_title; DEBUG and print STDERR "Forcing title to be $title\n"; } else { # Actually try looking for the title in the document: $title = $self->get_short_title(); unless($self->content_seen) { DEBUG and print STDERR "No content seen in search for title.\n"; return; } $self->{'Title'} = $title; if(defined $title and $title =~ m/\S/) { $title = $self->title_prefix . esc($title) . $self->title_postfix; } else { $title = $self->default_title; $title = '' unless defined $title; DEBUG and print STDERR "Title defaults to $title\n"; } } my $after = $self->html_header_after_title || ''; if($self->html_css) { my $link = $self->html_css =~ m/</ ? $self->html_css # It's a big blob of markup, let's drop it in : sprintf( # It's just a URL, so let's wrap it up qq[<link rel="stylesheet" type="text/css" title="pod_stylesheet" href="%s">\n], $self->html_css, ); $after =~ s{(</head>)}{$link\n$1}i; # otherwise nevermind } $self->_add_top_anchor(\$after); if($self->html_javascript) { my $link = $self->html_javascript =~ m/</ ? $self->html_javascript # It's a big blob of markup, let's drop it in : sprintf( # It's just a URL, so let's wrap it up qq[<script type="text/javascript" src="%s"></script>\n], $self->html_javascript, ); $after =~ s{(</head>)}{$link\n$1}i; # otherwise nevermind } print {$self->{'output_fh'}} $self->html_header_before_title || '', $title, # already escaped $after, ; DEBUG and print STDERR "Returning from do_beginning...\n"; return 1; } sub _add_top_anchor { my($self, $text_r) = @_; unless($$text_r and $$text_r =~ m/name=['"]___top['"]/) { # a hack $$text_r .= $self->top_anchor || ''; } return; } sub version_tag_comment { my $self = shift; return sprintf "\n", esc( ref($self), $self->VERSION(), $ISA[0], $ISA[0]->VERSION(), $], scalar(gmtime($ENV{SOURCE_DATE_EPOCH} || time)), ), $self->_modnote(), ; } sub _modnote { my $class = ref($_[0]) || $_[0]; return join "\n " => grep m/\S/, split "\n", qq{ If you want to change this HTML document, you probably shouldn't do that by changing it directly. Instead, see about changing the calling options to $class, and/or subclassing $class, then reconverting this document from the Pod source. When in doubt, email the author of $class for advice. See 'perldoc $class' for more info. }; } sub do_end { my $self = $_[0]; print {$self->{'output_fh'}} $self->html_footer || ''; return 1; } # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - # Normally this would just be a call to _do_middle_main_loop -- but we # have to do some elaborate things to emit all the content and then # summarize it and output it /before/ the content that it's a summary of. sub do_middle { my $self = $_[0]; return $self->_do_middle_main_loop unless $self->index; if( $self->output_string ) { # An efficiency hack my $out = $self->output_string; #it's a reference to it my $sneakytag = "\f\f\e\e\b\bIndex Here\e\e\b\b\f\f\n"; $$out .= $sneakytag; $self->_do_middle_main_loop; $sneakytag = quotemeta($sneakytag); my $index = $self->index_as_html(); if( $$out =~ s/$sneakytag/$index/s ) { # Expected case DEBUG and print STDERR "Inserted ", length($index), " bytes of index HTML into $out.\n"; } else { DEBUG and print STDERR "Odd, couldn't find where to insert the index in the output!\n"; # I don't think this should ever happen. } return 1; } unless( $self->output_fh ) { require Carp; Carp::confess("Parser object \$p doesn't seem to have any output object! I don't know how to deal with that."); } # If we get here, we're outputting to a FH. So we need to do some magic. # Namely, divert all content to a string, which we output after the index. my $fh = $self->output_fh; my $content = ''; { # Our horrible bait and switch: $self->output_string( \$content ); $self->_do_middle_main_loop; $self->abandon_output_string(); $self->output_fh($fh); } print $fh $self->index_as_html(); print $fh $content; return 1; } ########################################################################### sub index_as_html { my $self = $_[0]; # This is meant to be called AFTER the input document has been parsed! my $points = $self->{'PSHTML_index_points'} || []; @$points > 1 or return qq[<div class='indexgroupEmpty'></div>\n]; # There's no point in having a 0-item or 1-item index, I dare say. my(@out) = qq{\n<div class='indexgroup'>}; my $level = 0; my( $target_level, $previous_tagname, $tagname, $text, $anchorname, $indent); foreach my $p (@$points, ['head0', '(end)']) { ($tagname, $text) = @$p; $anchorname = $self->section_escape($text); if( $tagname =~ m{^head(\d+)$} ) { $target_level = 0 + $1; } else { # must be some kinda list item if($previous_tagname =~ m{^head\d+$} ) { $target_level = $level + 1; } else { $target_level = $level; # no change needed } } # Get to target_level by opening or closing ULs while($level > $target_level) { --$level; push @out, (" " x $level) . "</ul>"; } while($level < $target_level) { ++$level; push @out, (" " x ($level-1)) . "<ul class='indexList indexList$level'>"; } $previous_tagname = $tagname; next unless $level; $indent = ' ' x $level; push @out, sprintf "%s<li class='indexItem indexItem%s'><a href='#%s'>%s</a>", $indent, $level, esc($anchorname), esc($text) ; } push @out, "</div>\n"; return join "\n", @out; } ########################################################################### sub _do_middle_main_loop { my $self = $_[0]; my $fh = $self->{'output_fh'}; my $tagmap = $self->{'Tagmap'}; $self->__adjust_html_h_levels; my($token, $type, $tagname, $linkto, $linktype); my @stack; my $dont_wrap = 0; while($token = $self->get_token) { # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - if( ($type = $token->type) eq 'start' ) { if(($tagname = $token->tagname) eq 'L') { $linktype = $token->attr('type') || 'insane'; $linkto = $self->do_link($token); if(defined $linkto and length $linkto) { esc($linkto); # (Yes, SGML-escaping applies on top of %-escaping! # But it's rarely noticeable in practice.) print $fh qq{<a href="$linkto" class="podlink$linktype"\n>}; } else { print $fh "<a>"; # Yes, an 'a' element with no attributes! } } elsif ($tagname eq 'item-text' or $tagname =~ m/^head\d$/s) { print $fh $tagmap->{$tagname} || next; my @to_unget; while(1) { push @to_unget, $self->get_token; last if $to_unget[-1]->is_end and $to_unget[-1]->tagname eq $tagname; # TODO: support for X<...>'s found in here? (maybe hack into linearize_tokens) } my $name = $self->linearize_tokens(@to_unget); $name = $self->do_section($name, $token) if defined $name; print $fh "<a "; if ($tagname =~ m/^head\d$/s) { print $fh "class='u'", $self->index ? " href='#___top' title='click to go to top of document'\n" : "\n"; } if(defined $name) { my $esc = esc( $self->section_name_tidy( $name ) ); print $fh qq[name="$esc"]; DEBUG and print STDERR "Linearized ", scalar(@to_unget), " tokens as \"$name\".\n"; push @{ $self->{'PSHTML_index_points'} }, [$tagname, $name] if $ToIndex{ $tagname }; # Obviously, this discards all formatting codes (saving # just their content), but ahwell. } else { # ludicrously long, so nevermind DEBUG and print STDERR "Linearized ", scalar(@to_unget), " tokens, but it was too long, so nevermind.\n"; } print $fh "\n>"; $self->unget_token(@to_unget); } elsif ($tagname eq 'Data') { my $next = $self->get_token; next unless defined $next; unless( $next->type eq 'text' ) { $self->unget_token($next); next; } DEBUG and print STDERR " raw text ", $next->text, "\n"; # The parser sometimes preserves newlines and sometimes doesn't! (my $text = $next->text) =~ s/\n\z//; print $fh $text, "\n"; next; } else { if( $tagname =~ m/^over-/s ) { push @stack, ''; } elsif( $tagname =~ m/^item-/s and @stack and $stack[-1] ) { print $fh $stack[-1]; $stack[-1] = ''; } print $fh $tagmap->{$tagname} || next; ++$dont_wrap if $tagname eq 'Verbatim' or $tagname eq "VerbatimFormatted" or $tagname eq 'X'; } # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - } elsif( $type eq 'end' ) { if( ($tagname = $token->tagname) =~ m/^over-/s ) { if( my $end = pop @stack ) { print $fh $end; } } elsif( $tagname =~ m/^item-/s and @stack) { $stack[-1] = $tagmap->{"/$tagname"}; if( $tagname eq 'item-text' and defined(my $next = $self->get_token) ) { $self->unget_token($next); if( $next->type eq 'start' ) { print $fh $tagmap->{"/item-text"},$tagmap->{"item-body"}; $stack[-1] = $tagmap->{"/item-body"}; } } next; } print $fh $tagmap->{"/$tagname"} || next; --$dont_wrap if $tagname eq 'Verbatim' or $tagname eq 'X'; # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - } elsif( $type eq 'text' ) { esc($type = $token->text); # reuse $type, why not $type =~ s/([\?\!\"\'\.\,]) /$1\n/g unless $dont_wrap; print $fh $type; } } return 1; } ########################################################################### # sub do_section { my($self, $name, $token) = @_; return $name; } sub do_link { my($self, $token) = @_; my $type = $token->attr('type'); if(!defined $type) { $self->whine("Typeless L!?", $token->attr('start_line')); } elsif( $type eq 'pod') { return $self->do_pod_link($token); } elsif( $type eq 'url') { return $self->do_url_link($token); } elsif( $type eq 'man') { return $self->do_man_link($token); } else { $self->whine("L of unknown type $type!?", $token->attr('start_line')); } return 'FNORG'; # should never get called } # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - sub do_url_link { return $_[1]->attr('to') } sub do_man_link { my ($self, $link) = @_; my $to = $link->attr('to'); my $frag = $link->attr('section'); return undef unless defined $to and length $to; # should never happen $frag = $self->section_escape($frag) if defined $frag and length($frag .= ''); # (stringify) DEBUG and print STDERR "Resolving \"$to/$frag\"\n\n"; return $self->resolve_man_page_link($to, $frag); } sub do_pod_link { # And now things get really messy... my($self, $link) = @_; my $to = $link->attr('to'); my $section = $link->attr('section'); return undef unless( # should never happen (defined $to and length $to) or (defined $section and length $section) ); $section = $self->section_escape($section) if defined $section and length($section .= ''); # (stringify) DEBUG and printf STDERR "Resolving \"%s\" \"%s\"...\n", $to || "(nil)", $section || "(nil)"; { # An early hack: my $complete_url = $self->resolve_pod_link_by_table($to, $section); if( $complete_url ) { DEBUG > 1 and print STDERR "resolve_pod_link_by_table(T,S) gives ", $complete_url, "\n (Returning that.)\n"; return $complete_url; } else { DEBUG > 4 and print STDERR " resolve_pod_link_by_table(T,S)", " didn't return anything interesting.\n"; } } if(defined $to and length $to) { # Give this routine first hack again my $there = $self->resolve_pod_link_by_table($to); if(defined $there and length $there) { DEBUG > 1 and print STDERR "resolve_pod_link_by_table(T) gives $there\n"; } else { $there = $self->resolve_pod_page_link($to, $section); # (I pass it the section value, but I don't see a # particular reason it'd use it.) DEBUG > 1 and print STDERR "resolve_pod_page_link gives ", $there || "(nil)", "\n"; unless( defined $there and length $there ) { DEBUG and print STDERR "Can't resolve $to\n"; return undef; } # resolve_pod_page_link returning undef is how it # can signal that it gives up on making a link } $to = $there; } #DEBUG and print STDERR "So far [", $to||'nil', "] [", $section||'nil', "]\n"; my $out = (defined $to and length $to) ? $to : ''; $out .= "#" . $section if defined $section and length $section; unless(length $out) { # sanity check DEBUG and printf STDERR "Oddly, couldn't resolve \"%s\" \"%s\"...\n", $to || "(nil)", $section || "(nil)"; return undef; } DEBUG and print STDERR "Resolved to $out\n"; return $out; } # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . sub section_escape { my($self, $section) = @_; return $self->section_url_escape( $self->section_name_tidy($section) ); } sub section_name_tidy { my($self, $section) = @_; $section =~ s/^\s+//; $section =~ s/\s+$//; $section =~ tr/ /_/; if ($] ge 5.006) { $section =~ s/[[:cntrl:][:^ascii:]]//g; # drop crazy characters } elsif ('A' eq chr(65)) { # But not on early EBCDIC $section =~ tr/\x00-\x1F\x80-\x9F//d; } $section = $self->unicode_escape_url($section); $section = '_' unless length $section; return $section; } sub section_url_escape { shift->general_url_escape(@_) } sub pagepath_url_escape { shift->general_url_escape(@_) } sub manpage_url_escape { shift->general_url_escape(@_) } sub general_url_escape { my($self, $string) = @_; $string =~ s/([^\x00-\xFF])/join '', map sprintf('%%%02X',$_), unpack 'C*', $1/eg; # express Unicode things as urlencode(utf(orig)). # A pretty conservative escaping, behoovey even for query components # of a URL (see RFC 2396) if ($] ge 5.007_003) { $string =~ s/([^-_\.!~*()abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789])/sprintf('%%%02X',utf8::native_to_unicode(ord($1)))/eg; } else { # Is broken for non-ASCII platforms on early perls $string =~ s/([^-_\.!~*()abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789])/sprintf('%%%02X',ord($1))/eg; } # Yes, stipulate the list without a range, so that this can work right on # all charsets that this module happens to run under. return $string; } #-------------------------------------------------------------------------- # # Oh look, a yawning portal to Hell! Let's play touch football right by it! # sub resolve_pod_page_link { # resolve_pod_page_link must return a properly escaped URL my $self = shift; return $self->batch_mode() ? $self->resolve_pod_page_link_batch_mode(@_) : $self->resolve_pod_page_link_singleton_mode(@_) ; } sub resolve_pod_page_link_singleton_mode { my($self, $it) = @_; return undef unless defined $it and length $it; my $url = $self->pagepath_url_escape($it); $url =~ s{::$}{}s; # probably never comes up anyway $url =~ s{::}{/}g unless $self->perldoc_url_prefix =~ m/\?/s; # sane DWIM? return undef unless length $url; return $self->perldoc_url_prefix . $url . $self->perldoc_url_postfix; } sub resolve_pod_page_link_batch_mode { my($self, $to) = @_; DEBUG > 1 and print STDERR " During batch mode, resolving $to ...\n"; my @path = grep length($_), split m/::/s, $to, -1; unless( @path ) { # sanity DEBUG and print STDERR "Very odd! Splitting $to gives (nil)!\n"; return undef; } $self->batch_mode_rectify_path(\@path); my $out = join('/', map $self->pagepath_url_escape($_), @path) . $HTML_EXTENSION; DEBUG > 1 and print STDERR " => $out\n"; return $out; } sub batch_mode_rectify_path { my($self, $pathbits) = @_; my $level = $self->batch_mode_current_level; $level--; # how many levels up to go to get to the root if($level < 1) { unshift @$pathbits, '.'; # just to be pretty } else { unshift @$pathbits, ('..') x $level; } return; } sub resolve_man_page_link { my ($self, $to, $frag) = @_; my ($page, $section) = $to =~ /^([^(]+)(?:[(](\d+)[)])?$/; return undef unless defined $page and length $page; $section ||= 1; return $self->man_url_prefix . "$section/" . $self->manpage_url_escape($page) . $self->man_url_postfix; } #~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ sub resolve_pod_link_by_table { # A crazy hack to allow specifying custom L<foo> => URL mappings return unless $_[0]->{'podhtml_LOT'}; # An optimizy shortcut my($self, $to, $section) = @_; # TODO: add a method that actually populates podhtml_LOT from a file? if(defined $section) { $to = '' unless defined $to and length $to; return $self->{'podhtml_LOT'}{"$to#$section"}; # quite possibly undef! } else { return $self->{'podhtml_LOT'}{$to}; # quite possibly undef! } return; } ########################################################################### sub linearize_tokens { # self, tokens my $self = shift; my $out = ''; my $t; while($t = shift @_) { if(!ref $t or !UNIVERSAL::can($t, 'is_text')) { $out .= $t; # a string, or some insane thing } elsif($t->is_text) { $out .= $t->text; } elsif($t->is_start and $t->tag eq 'X') { # Ignore until the end of this X<...> sequence: my $x_open = 1; while($x_open) { next if( ($t = shift @_)->is_text ); if( $t->is_start and $t->tag eq 'X') { ++$x_open } elsif($t->is_end and $t->tag eq 'X') { --$x_open } } } } return undef if length $out > $Linearization_Limit; return $out; } #~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ sub unicode_escape_url { my($self, $string) = @_; $string =~ s/([^\x00-\xFF])/'('.ord($1).')'/eg; # Turn char 1234 into "(1234)" return $string; } #~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ sub esc { # a function. if(defined wantarray) { if(wantarray) { @_ = splice @_; # break aliasing } else { my $x = shift; if ($] ge 5.007_003) { $x =~ s/([^-\n\t !\#\$\%\*\+,\.\~\/\:\;=\?\@\[\\\]\^_\`\{\|\}abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789])/'&#'.(utf8::native_to_unicode(ord($1))).';'/eg; } else { # Is broken for non-ASCII platforms on early perls $x =~ s/([^-\n\t !\#\$\%\*\+,\.\~\/\:\;=\?\@\[\\\]\^_\`\{\|\}abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789])/'&#'.(ord($1)).';'/eg; } return $x; } } foreach my $x (@_) { # Escape things very cautiously: if (defined $x) { if ($] ge 5.007_003) { $x =~ s/([^-\n\t !\#\$\%\*\+,\.\~\/\:\;=\?\@\[\\\]\^_\`\{\|\}abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789])/'&#'.(utf8::native_to_unicode(ord($1))).';'/eg } else { # Is broken for non-ASCII platforms on early perls $x =~ s/([^-\n\t !\#\$\%\*\+,\.\~\/\:\;=\?\@\[\\\]\^_\`\{\|\}abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789])/'&#'.(ord($1)).';'/eg } } # Leave out "- so that "--" won't make it thru in X-generated comments # with text in them. # Yes, stipulate the list without a range, so that this can work right on # all charsets that this module happens to run under. } return @_; } #~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1; __END__ =head1 NAME Pod::Simple::HTML - convert Pod to HTML =head1 SYNOPSIS perl -MPod::Simple::HTML -e Pod::Simple::HTML::go thingy.pod =head1 DESCRIPTION This class is for making an HTML rendering of a Pod document. This is a subclass of L<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 L<Pod::Simple::HTMLBatch>. =head1 CALLING FROM THE COMMAND LINE TODO perl -MPod::Simple::HTML -e Pod::Simple::HTML::go Thing.pod Thing.html =head1 CALLING FROM PERL =head2 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; =head2 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'); =head1 METHODS TODO all (most?) accessorized methods The following variables need to be set B<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 embedded 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'; =head2 html_css =head2 html_javascript =head2 title_prefix =head2 title_postfix =head2 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>'); =head2 top_anchor By default Pod::Simple::HTML adds a dummy anchor at the top of the HTML. You can change it by calling $p->top_anchor('<a name="zz" >'); =head2 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... =head2 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); =head2 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">'); =head2 html_footer The very end of the document: $p->html_footer( qq[\n\n\n</body></html>\n] ); =head1 SUBCLASSING Can use any of the methods described above but for further customization one needs to override some of the methods: package My::Pod; use strict; use warnings; use base 'Pod::Simple::HTML'; # needs to return a URL string such # http://some.other.com/page.html # #anchor_in_the_same_file # /internal/ref.html sub do_pod_link { # My::Pod object and Pod::Simple::PullParserStartToken object my ($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 =head1 SEE ALSO L<Pod::Simple>, L<Pod::Simple::HTMLBatch> TODO: a corpus of sample Pod input and HTML output? Or common idioms? =head1 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, L<https://github.com/perl-pod/pod-simple/>. Feel free to fork and contribute, or to clone L<git://github.com/perl-pod/pod-simple.git> and send patches! Patches against Pod::Simple are welcome. Please send bug reports to <bug-pod-simple@rt.cpan.org>. =head1 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. =head1 ACKNOWLEDGEMENTS Thanks to L<Hurricane Electric|http://he.net/> for permission to use its L<Linux man pages online|http://man.he.net/> site for man page links. Thanks to L<search.cpan.org|http://search.cpan.org/> for permission to use the site for Perl module links. =head1 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: =over =item * Allison Randal C<allison@perl.org> =item * Hans Dieter Pearcey C<hdp@cpan.org> =item * David E. Wheeler C<dwheeler@cpan.org> =back =cut