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-package Pod::Html;
-use strict;
-require Exporter;
-
-use vars qw($VERSION @ISA @EXPORT @EXPORT_OK);
-$VERSION = 1.0504;
-@ISA = qw(Exporter);
-@EXPORT = qw(pod2html htmlify);
-@EXPORT_OK = qw(anchorify);
-
-use Carp;
-use Config;
-use Cwd;
-use File::Spec;
-use File::Spec::Unix;
-use Getopt::Long;
-
-use locale; # make \w work right in non-ASCII lands
-
-=head1 NAME
-
-Pod::Html - module to convert pod files to HTML
-
-=head1 SYNOPSIS
-
- use Pod::Html;
- pod2html([options]);
-
-=head1 DESCRIPTION
-
-Converts files from pod format (see L<perlpod>) to HTML format. It
-can automatically generate indexes and cross-references, and it keeps
-a cache of things it knows how to cross-reference.
-
-=head1 ARGUMENTS
-
-Pod::Html takes the following arguments:
-
-=over 4
-
-=item backlink
-
- --backlink="Back to Top"
-
-Adds "Back to Top" links in front of every C<head1> heading (except for
-the first). By default, no backlinks are generated.
-
-=item cachedir
-
- --cachedir=name
-
-Creates the item and directory caches in the given directory.
-
-=item css
-
- --css=stylesheet
-
-Specify the URL of a cascading style sheet. Also disables all HTML/CSS
-C<style> attributes that are output by default (to avoid conflicts).
-
-=item flush
-
- --flush
-
-Flushes the item and directory caches.
-
-=item header
-
- --header
- --noheader
-
-Creates header and footer blocks containing the text of the C<NAME>
-section. By default, no headers are generated.
-
-=item help
-
- --help
-
-Displays the usage message.
-
-=item hiddendirs
-
- --hiddendirs
- --nohiddendirs
-
-Include hidden directories in the search for POD's in podpath if recurse
-is set.
-The default is not to traverse any directory whose name begins with C<.>.
-See L</"podpath"> and L</"recurse">.
-
-[This option is for backward compatibility only.
-It's hard to imagine that one would usefully create a module with a
-name component beginning with C<.>.]
-
-=item htmldir
-
- --htmldir=name
-
-Sets the directory in which the resulting HTML file is placed. This
-is used to generate relative links to other files. Not passing this
-causes all links to be absolute, since this is the value that tells
-Pod::Html the root of the documentation tree.
-
-=item htmlroot
-
- --htmlroot=name
-
-Sets the base URL for the HTML files. When cross-references are made,
-the HTML root is prepended to the URL.
-
-=item index
-
- --index
- --noindex
-
-Generate an index at the top of the HTML file. This is the default
-behaviour.
-
-=item infile
-
- --infile=name
-
-Specify the pod file to convert. Input is taken from STDIN if no
-infile is specified.
-
-=item libpods
-
- --libpods=name:...:name
-
-List of page names (eg, "perlfunc") which contain linkable C<=item>s.
-
-=item netscape
-
- --netscape
- --nonetscape
-
-B<Deprecated>, has no effect. For backwards compatibility only.
-
-=item outfile
-
- --outfile=name
-
-Specify the HTML file to create. Output goes to STDOUT if no outfile
-is specified.
-
-=item podpath
-
- --podpath=name:...:name
-
-Specify which subdirectories of the podroot contain pod files whose
-HTML converted forms can be linked to in cross references.
-
-=item podroot
-
- --podroot=name
-
-Specify the base directory for finding library pods.
-
-=item quiet
-
- --quiet
- --noquiet
-
-Don't display I<mostly harmless> warning messages. These messages
-will be displayed by default. But this is not the same as C<verbose>
-mode.
-
-=item recurse
-
- --recurse
- --norecurse
-
-Recurse into subdirectories specified in podpath (default behaviour).
-
-=item title
-
- --title=title
-
-Specify the title of the resulting HTML file.
-
-=item verbose
-
- --verbose
- --noverbose
-
-Display progress messages. By default, they won't be displayed.
-
-=back
-
-=head1 EXAMPLE
-
- pod2html("pod2html",
- "--podpath=lib:ext:pod:vms",
- "--podroot=/usr/src/perl",
- "--htmlroot=/perl/nmanual",
- "--libpods=perlfunc:perlguts:perlvar:perlrun:perlop",
- "--recurse",
- "--infile=foo.pod",
- "--outfile=/perl/nmanual/foo.html");
-
-=head1 ENVIRONMENT
-
-Uses C<$Config{pod2html}> to setup default options.
-
-=head1 AUTHOR
-
-Tom Christiansen, E<lt>tchrist@perl.comE<gt>.
-
-=head1 SEE ALSO
-
-L<perlpod>
-
-=head1 COPYRIGHT
-
-This program is distributed under the Artistic License.
-
-=cut
-
-
-my($Cachedir);
-my($Dircache, $Itemcache);
-my @Begin_Stack;
-my @Libpods;
-my($Htmlroot, $Htmldir, $Htmlfile, $Htmlfileurl);
-my($Podfile, @Podpath, $Podroot);
-my $Css;
-
-my $Recurse;
-my $Quiet;
-my $HiddenDirs;
-my $Verbose;
-my $Doindex;
-
-my $Backlink;
-my($Listlevel, @Listtype);
-my $ListNewTerm;
-use vars qw($Ignore); # need to localize it later.
-
-my(%Items_Named, @Items_Seen);
-my($Title, $Header);
-
-my $Top;
-my $Paragraph;
-
-my %Sections;
-
-# Caches
-my %Pages = (); # associative array used to find the location
- # of pages referenced by L<> links.
-my %Items = (); # associative array used to find the location
- # of =item directives referenced by C<> links
-
-my %Local_Items;
-my $Is83;
-my $PTQuote;
-
-my $Curdir = File::Spec->curdir;
-
-init_globals();
-
-sub init_globals {
- $Cachedir = "."; # The directory to which item and directory
- # caches will be written.
-
- $Dircache = "pod2htmd.tmp";
- $Itemcache = "pod2htmi.tmp";
-
- @Begin_Stack = (); # begin/end stack
-
- @Libpods = (); # files to search for links from C<> directives
- $Htmlroot = "/"; # http-server base directory from which all
- # relative paths in $podpath stem.
- $Htmldir = ""; # The directory to which the html pages
- # will (eventually) be written.
- $Htmlfile = ""; # write to stdout by default
- $Htmlfileurl = ""; # The url that other files would use to
- # refer to this file. This is only used
- # to make relative urls that point to
- # other files.
-
- $Podfile = ""; # read from stdin by default
- @Podpath = (); # list of directories containing library pods.
- $Podroot = $Curdir; # filesystem base directory from which all
- # relative paths in $podpath stem.
- $Css = ''; # Cascading style sheet
- $Recurse = 1; # recurse on subdirectories in $podpath.
- $Quiet = 0; # not quiet by default
- $Verbose = 0; # not verbose by default
- $Doindex = 1; # non-zero if we should generate an index
- $Backlink = ''; # text for "back to top" links
- $Listlevel = 0; # current list depth
- @Listtype = (); # list types for open lists
- $ListNewTerm = 0; # indicates new term in definition list; used
- # to correctly open/close <dd> tags
- $Ignore = 1; # whether or not to format text. we don't
- # format text until we hit our first pod
- # directive.
-
- @Items_Seen = (); # for multiples of the same item in perlfunc
- %Items_Named = ();
- $Header = 0; # produce block header/footer
- $Title = ''; # title to give the pod(s)
- $Top = 1; # true if we are at the top of the doc. used
- # to prevent the first <hr /> directive.
- $Paragraph = ''; # which paragraph we're processing (used
- # for error messages)
- $PTQuote = 0; # status of double-quote conversion
- %Sections = (); # sections within this page
-
- %Local_Items = ();
- $Is83 = $^O eq 'dos'; # Is it an 8.3 filesystem?
-}
-
-#
-# clean_data: global clean-up of pod data
-#
-sub clean_data($){
- my( $dataref ) = @_;
- for my $i ( 0..$#{$dataref} ) {
- ${$dataref}[$i] =~ s/\s+\Z//;
-
- # have a look for all-space lines
- if( ${$dataref}[$i] =~ /^\s+$/m and $dataref->[$i] !~ /^\s/ ){
- my @chunks = split( /^\s+$/m, ${$dataref}[$i] );
- splice( @$dataref, $i, 1, @chunks );
- }
- }
-}
-
-
-sub pod2html {
- local(@ARGV) = @_;
- local($/);
- local $_;
-
- init_globals();
-
- $Is83 = 0 if (defined (&Dos::UseLFN) && Dos::UseLFN());
-
- # cache of %Pages and %Items from last time we ran pod2html
-
- #undef $opt_help if defined $opt_help;
-
- # parse the command-line parameters
- parse_command_line();
-
- # escape the backlink argument (same goes for title but is done later...)
- $Backlink = html_escape($Backlink) if defined $Backlink;
-
- # set some variables to their default values if necessary
- local *POD;
- unless (@ARGV && $ARGV[0]) {
- $Podfile = "-" unless $Podfile; # stdin
- open(POD, "<$Podfile")
- || die "$0: cannot open $Podfile file for input: $!\n";
- } else {
- $Podfile = $ARGV[0]; # XXX: might be more filenames
- *POD = *ARGV;
- }
- $Htmlfile = "-" unless $Htmlfile; # stdout
- $Htmlroot = "" if $Htmlroot eq "/"; # so we don't get a //
- $Htmldir =~ s#/\z## ; # so we don't get a //
- if ( $Htmlroot eq ''
- && defined( $Htmldir )
- && $Htmldir ne ''
- && substr( $Htmlfile, 0, length( $Htmldir ) ) eq $Htmldir
- )
- {
- # Set the 'base' url for this file, so that we can use it
- # as the location from which to calculate relative links
- # to other files. If this is '', then absolute links will
- # be used throughout.
- $Htmlfileurl= "$Htmldir/" . substr( $Htmlfile, length( $Htmldir ) + 1);
- }
-
- # read the pod a paragraph at a time
- warn "Scanning for sections in input file(s)\n" if $Verbose;
- $/ = "";
- my @poddata = <POD>;
- close(POD);
-
- # be eol agnostic
- for (@poddata) {
- if (/\r/) {
- if (/\r\n/) {
- @poddata = map { s/\r\n/\n/g;
- /\n\n/ ?
- map { "$_\n\n" } split /\n\n/ :
- $_ } @poddata;
- } else {
- @poddata = map { s/\r/\n/g;
- /\n\n/ ?
- map { "$_\n\n" } split /\n\n/ :
- $_ } @poddata;
- }
- last;
- }
- }
-
- clean_data( \@poddata );
-
- # scan the pod for =head[1-6] directives and build an index
- my $index = scan_headings(\%Sections, @poddata);
-
- unless($index) {
- warn "No headings in $Podfile\n" if $Verbose;
- }
-
- # open the output file
- open(HTML, ">$Htmlfile")
- || die "$0: cannot open $Htmlfile file for output: $!\n";
-
- # put a title in the HTML file if one wasn't specified
- if ($Title eq '') {
- TITLE_SEARCH: {
- for (my $i = 0; $i < @poddata; $i++) {
- if ($poddata[$i] =~ /^=head1\s*NAME\b/m) {
- for my $para ( @poddata[$i, $i+1] ) {
- last TITLE_SEARCH
- if ($Title) = $para =~ /(\S+\s+-+.*\S)/s;
- }
- }
-
- }
- }
- }
- if (!$Title and $Podfile =~ /\.pod\z/) {
- # probably a split pod so take first =head[12] as title
- for (my $i = 0; $i < @poddata; $i++) {
- last if ($Title) = $poddata[$i] =~ /^=head[12]\s*(.*)/;
- }
- warn "adopted '$Title' as title for $Podfile\n"
- if $Verbose and $Title;
- }
- if ($Title) {
- $Title =~ s/\s*\(.*\)//;
- } else {
- warn "$0: no title for $Podfile.\n" unless $Quiet;
- $Podfile =~ /^(.*)(\.[^.\/]+)?\z/s;
- $Title = ($Podfile eq "-" ? 'No Title' : $1);
- warn "using $Title" if $Verbose;
- }
- $Title = html_escape($Title);
-
- my $csslink = '';
- my $bodystyle = ' style="background-color: white"';
- my $tdstyle = ' style="background-color: #cccccc"';
-
- if ($Css) {
- $csslink = qq(\n<link rel="stylesheet" href="$Css" type="text/css" />);
- $csslink =~ s,\\,/,g;
- $csslink =~ s,(/.):,$1|,;
- $bodystyle = '';
- $tdstyle = '';
- }
-
- my $block = $Header ? <<END_OF_BLOCK : '';
-<table border="0" width="100%" cellspacing="0" cellpadding="3">
-<tr><td class="block"$tdstyle valign="middle">
-<big><strong><span class="block">&nbsp;$Title</span></strong></big>
-</td></tr>
-</table>
-END_OF_BLOCK
-
- print HTML <<END_OF_HEAD;
-<?xml version="1.0" ?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml">
-<head>
-<title>$Title</title>$csslink
-<meta http-equiv="content-type" content="text/html; charset=utf-8" />
-<link rev="made" href="mailto:$Config{perladmin}" />
-</head>
-
-<body$bodystyle>
-$block
-END_OF_HEAD
-
- # load/reload/validate/cache %Pages and %Items
- get_cache($Dircache, $Itemcache, \@Podpath, $Podroot, $Recurse);
-
- # scan the pod for =item directives
- scan_items( \%Local_Items, "", @poddata);
-
- # put an index at the top of the file. note, if $Doindex is 0 we
- # still generate an index, but surround it with an html comment.
- # that way some other program can extract it if desired.
- $index =~ s/--+/-/g;
- print HTML "<p><a name=\"__index__\"></a></p>\n";
- print HTML "<!-- INDEX BEGIN -->\n";
- print HTML "<!--\n" unless $Doindex;
- print HTML $index;
- print HTML "-->\n" unless $Doindex;
- print HTML "<!-- INDEX END -->\n\n";
- print HTML "<hr />\n" if $Doindex and $index;
-
- # now convert this file
- my $after_item; # set to true after an =item
- warn "Converting input file $Podfile\n" if $Verbose;
- foreach my $i (0..$#poddata){
- $PTQuote = 0; # status of quote conversion
-
- $_ = $poddata[$i];
- $Paragraph = $i+1;
- if (/^(=.*)/s) { # is it a pod directive?
- $Ignore = 0;
- $after_item = 0;
- $_ = $1;
- if (/^=begin\s+(\S+)\s*(.*)/si) {# =begin
- process_begin($1, $2);
- } elsif (/^=end\s+(\S+)\s*(.*)/si) {# =end
- process_end($1, $2);
- } elsif (/^=cut/) { # =cut
- process_cut();
- } elsif (/^=pod/) { # =pod
- process_pod();
- } else {
- next if @Begin_Stack && $Begin_Stack[-1] ne 'html';
-
- if (/^=(head[1-6])\s+(.*\S)/s) { # =head[1-6] heading
- process_head( $1, $2, $Doindex && $index );
- } elsif (/^=item\s*(.*\S)?/sm) { # =item text
- process_item( $1 );
- $after_item = 1;
- } elsif (/^=over\s*(.*)/) { # =over N
- process_over();
- } elsif (/^=back/) { # =back
- process_back();
- } elsif (/^=for\s+(\S+)\s*(.*)/si) {# =for
- process_for($1,$2);
- } else {
- /^=(\S*)\s*/;
- warn "$0: $Podfile: unknown pod directive '$1' in "
- . "paragraph $Paragraph. ignoring.\n" unless $Quiet;
- }
- }
- $Top = 0;
- }
- else {
- next if $Ignore;
- next if @Begin_Stack && $Begin_Stack[-1] ne 'html';
- print HTML and next if @Begin_Stack && $Begin_Stack[-1] eq 'html';
- my $text = $_;
-
- # Open tag for definition list as we have something to put in it
- if( $ListNewTerm ){
- print HTML "<dd>\n";
- $ListNewTerm = 0;
- }
-
- if( $text =~ /\A\s+/ ){
- process_pre( \$text );
- print HTML "<pre>\n$text</pre>\n";
-
- } else {
- process_text( \$text );
-
- # experimental: check for a paragraph where all lines
- # have some ...\t...\t...\n pattern
- if( $text =~ /\t/ ){
- my @lines = split( "\n", $text );
- if( @lines > 1 ){
- my $all = 2;
- foreach my $line ( @lines ){
- if( $line =~ /\S/ && $line !~ /\t/ ){
- $all--;
- last if $all == 0;
- }
- }
- if( $all > 0 ){
- $text =~ s/\t+/<td>/g;
- $text =~ s/^/<tr><td>/gm;
- $text = '<table cellspacing="0" cellpadding="0">' .
- $text . '</table>';
- }
- }
- }
- ## end of experimental
-
- print HTML "<p>$text</p>\n";
- }
- $after_item = 0;
- }
- }
-
- # finish off any pending directives
- finish_list();
-
- # link to page index
- print HTML "<p><a href=\"#__index__\"><small>$Backlink</small></a></p>\n"
- if $Doindex and $index and $Backlink;
-
- print HTML <<END_OF_TAIL;
-$block
-</body>
-
-</html>
-END_OF_TAIL
-
- # close the html file
- close(HTML);
-
- warn "Finished\n" if $Verbose;
-}
-
-##############################################################################
-
-sub usage {
- my $podfile = shift;
- warn "$0: $podfile: @_\n" if @_;
- die <<END_OF_USAGE;
-Usage: $0 --help --htmlroot=<name> --infile=<name> --outfile=<name>
- --podpath=<name>:...:<name> --podroot=<name>
- --libpods=<name>:...:<name> --recurse --verbose --index
- --netscape --norecurse --noindex --cachedir=<name>
-
- --backlink - set text for "back to top" links (default: none).
- --cachedir - directory for the item and directory cache files.
- --css - stylesheet URL
- --flush - flushes the item and directory caches.
- --[no]header - produce block header/footer (default is no headers).
- --help - prints this message.
- --hiddendirs - search hidden directories in podpath
- --htmldir - directory for resulting HTML files.
- --htmlroot - http-server base directory from which all relative paths
- in podpath stem (default is /).
- --[no]index - generate an index at the top of the resulting html
- (default behaviour).
- --infile - filename for the pod to convert (input taken from stdin
- by default).
- --libpods - colon-separated list of pages to search for =item pod
- directives in as targets of C<> and implicit links (empty
- by default). note, these are not filenames, but rather
- page names like those that appear in L<> links.
- --outfile - filename for the resulting html file (output sent to
- stdout by default).
- --podpath - colon-separated list of directories containing library
- pods (empty by default).
- --podroot - filesystem base directory from which all relative paths
- in podpath stem (default is .).
- --[no]quiet - suppress some benign warning messages (default is off).
- --[no]recurse - recurse on those subdirectories listed in podpath
- (default behaviour).
- --title - title that will appear in resulting html file.
- --[no]verbose - self-explanatory (off by default).
- --[no]netscape - deprecated, has no effect. for backwards compatibility only.
-
-END_OF_USAGE
-
-}
-
-sub parse_command_line {
- my ($opt_backlink,$opt_cachedir,$opt_css,$opt_flush,$opt_header,$opt_help,
- $opt_htmldir,$opt_htmlroot,$opt_index,$opt_infile,$opt_libpods,
- $opt_netscape,$opt_outfile,$opt_podpath,$opt_podroot,$opt_quiet,
- $opt_recurse,$opt_title,$opt_verbose,$opt_hiddendirs);
-
- unshift @ARGV, split ' ', $Config{pod2html} if $Config{pod2html};
- my $result = GetOptions(
- 'backlink=s' => \$opt_backlink,
- 'cachedir=s' => \$opt_cachedir,
- 'css=s' => \$opt_css,
- 'flush' => \$opt_flush,
- 'header!' => \$opt_header,
- 'help' => \$opt_help,
- 'hiddendirs!'=> \$opt_hiddendirs,
- 'htmldir=s' => \$opt_htmldir,
- 'htmlroot=s' => \$opt_htmlroot,
- 'index!' => \$opt_index,
- 'infile=s' => \$opt_infile,
- 'libpods=s' => \$opt_libpods,
- 'netscape!' => \$opt_netscape,
- 'outfile=s' => \$opt_outfile,
- 'podpath=s' => \$opt_podpath,
- 'podroot=s' => \$opt_podroot,
- 'quiet!' => \$opt_quiet,
- 'recurse!' => \$opt_recurse,
- 'title=s' => \$opt_title,
- 'verbose!' => \$opt_verbose,
- );
- usage("-", "invalid parameters") if not $result;
-
- usage("-") if defined $opt_help; # see if the user asked for help
- $opt_help = ""; # just to make -w shut-up.
-
- @Podpath = split(":", $opt_podpath) if defined $opt_podpath;
- @Libpods = split(":", $opt_libpods) if defined $opt_libpods;
-
- $Backlink = $opt_backlink if defined $opt_backlink;
- $Cachedir = $opt_cachedir if defined $opt_cachedir;
- $Css = $opt_css if defined $opt_css;
- $Header = $opt_header if defined $opt_header;
- $Htmldir = $opt_htmldir if defined $opt_htmldir;
- $Htmlroot = $opt_htmlroot if defined $opt_htmlroot;
- $Doindex = $opt_index if defined $opt_index;
- $Podfile = $opt_infile if defined $opt_infile;
- $HiddenDirs = $opt_hiddendirs if defined $opt_hiddendirs;
- $Htmlfile = $opt_outfile if defined $opt_outfile;
- $Podroot = $opt_podroot if defined $opt_podroot;
- $Quiet = $opt_quiet if defined $opt_quiet;
- $Recurse = $opt_recurse if defined $opt_recurse;
- $Title = $opt_title if defined $opt_title;
- $Verbose = $opt_verbose if defined $opt_verbose;
-
- warn "Flushing item and directory caches\n"
- if $opt_verbose && defined $opt_flush;
- $Dircache = "$Cachedir/pod2htmd.tmp";
- $Itemcache = "$Cachedir/pod2htmi.tmp";
- if (defined $opt_flush) {
- 1 while unlink($Dircache, $Itemcache);
- }
-}
-
-
-my $Saved_Cache_Key;
-
-sub get_cache {
- my($dircache, $itemcache, $podpath, $podroot, $recurse) = @_;
- my @cache_key_args = @_;
-
- # A first-level cache:
- # Don't bother reading the cache files if they still apply
- # and haven't changed since we last read them.
-
- my $this_cache_key = cache_key(@cache_key_args);
-
- return if $Saved_Cache_Key and $this_cache_key eq $Saved_Cache_Key;
-
- # load the cache of %Pages and %Items if possible. $tests will be
- # non-zero if successful.
- my $tests = 0;
- if (-f $dircache && -f $itemcache) {
- warn "scanning for item cache\n" if $Verbose;
- $tests = load_cache($dircache, $itemcache, $podpath, $podroot);
- }
-
- # if we didn't succeed in loading the cache then we must (re)build
- # %Pages and %Items.
- if (!$tests) {
- warn "scanning directories in pod-path\n" if $Verbose;
- scan_podpath($podroot, $recurse, 0);
- }
- $Saved_Cache_Key = cache_key(@cache_key_args);
-}
-
-sub cache_key {
- my($dircache, $itemcache, $podpath, $podroot, $recurse) = @_;
- return join('!', $dircache, $itemcache, $recurse,
- @$podpath, $podroot, stat($dircache), stat($itemcache));
-}
-
-#
-# load_cache - tries to find if the caches stored in $dircache and $itemcache
-# are valid caches of %Pages and %Items. if they are valid then it loads
-# them and returns a non-zero value.
-#
-sub load_cache {
- my($dircache, $itemcache, $podpath, $podroot) = @_;
- my($tests);
- local $_;
-
- $tests = 0;
-
- open(CACHE, "<$itemcache") ||
- die "$0: error opening $itemcache for reading: $!\n";
- $/ = "\n";
-
- # is it the same podpath?
- $_ = <CACHE>;
- chomp($_);
- $tests++ if (join(":", @$podpath) eq $_);
-
- # is it the same podroot?
- $_ = <CACHE>;
- chomp($_);
- $tests++ if ($podroot eq $_);
-
- # load the cache if its good
- if ($tests != 2) {
- close(CACHE);
- return 0;
- }
-
- warn "loading item cache\n" if $Verbose;
- while (<CACHE>) {
- /(.*?) (.*)$/;
- $Items{$1} = $2;
- }
- close(CACHE);
-
- warn "scanning for directory cache\n" if $Verbose;
- open(CACHE, "<$dircache") ||
- die "$0: error opening $dircache for reading: $!\n";
- $/ = "\n";
- $tests = 0;
-
- # is it the same podpath?
- $_ = <CACHE>;
- chomp($_);
- $tests++ if (join(":", @$podpath) eq $_);
-
- # is it the same podroot?
- $_ = <CACHE>;
- chomp($_);
- $tests++ if ($podroot eq $_);
-
- # load the cache if its good
- if ($tests != 2) {
- close(CACHE);
- return 0;
- }
-
- warn "loading directory cache\n" if $Verbose;
- while (<CACHE>) {
- /(.*?) (.*)$/;
- $Pages{$1} = $2;
- }
-
- close(CACHE);
-
- return 1;
-}
-
-#
-# scan_podpath - scans the directories specified in @podpath for directories,
-# .pod files, and .pm files. it also scans the pod files specified in
-# @Libpods for =item directives.
-#
-sub scan_podpath {
- my($podroot, $recurse, $append) = @_;
- my($pwd, $dir);
- my($libpod, $dirname, $pod, @files, @poddata);
-
- unless($append) {
- %Items = ();
- %Pages = ();
- }
-
- # scan each directory listed in @Podpath
- $pwd = getcwd();
- chdir($podroot)
- || die "$0: error changing to directory $podroot: $!\n";
- foreach $dir (@Podpath) {
- scan_dir($dir, $recurse);
- }
-
- # scan the pods listed in @Libpods for =item directives
- foreach $libpod (@Libpods) {
- # if the page isn't defined then we won't know where to find it
- # on the system.
- next unless defined $Pages{$libpod} && $Pages{$libpod};
-
- # if there is a directory then use the .pod and .pm files within it.
- # NOTE: Only finds the first so-named directory in the tree.
-# if ($Pages{$libpod} =~ /([^:]*[^(\.pod|\.pm)]):/) {
- if ($Pages{$libpod} =~ /([^:]*(?<!\.pod)(?<!\.pm)):/) {
- # find all the .pod and .pm files within the directory
- $dirname = $1;
- opendir(DIR, $dirname) ||
- die "$0: error opening directory $dirname: $!\n";
- @files = grep(/(\.pod|\.pm)\z/ && ! -d $_, readdir(DIR));
- closedir(DIR);
-
- # scan each .pod and .pm file for =item directives
- foreach $pod (@files) {
- open(POD, "<$dirname/$pod") ||
- die "$0: error opening $dirname/$pod for input: $!\n";
- @poddata = <POD>;
- close(POD);
- clean_data( \@poddata );
-
- scan_items( \%Items, "$dirname/$pod", @poddata);
- }
-
- # use the names of files as =item directives too.
-### Don't think this should be done this way - confuses issues.(WL)
-### foreach $pod (@files) {
-### $pod =~ /^(.*)(\.pod|\.pm)$/;
-### $Items{$1} = "$dirname/$1.html" if $1;
-### }
- } elsif ($Pages{$libpod} =~ /([^:]*\.pod):/ ||
- $Pages{$libpod} =~ /([^:]*\.pm):/) {
- # scan the .pod or .pm file for =item directives
- $pod = $1;
- open(POD, "<$pod") ||
- die "$0: error opening $pod for input: $!\n";
- @poddata = <POD>;
- close(POD);
- clean_data( \@poddata );
-
- scan_items( \%Items, "$pod", @poddata);
- } else {
- warn "$0: shouldn't be here (line ".__LINE__."\n" unless $Quiet;
- }
- }
- @poddata = (); # clean-up a bit
-
- chdir($pwd)
- || die "$0: error changing to directory $pwd: $!\n";
-
- # cache the item list for later use
- warn "caching items for later use\n" if $Verbose;
- open(CACHE, ">$Itemcache") ||
- die "$0: error open $Itemcache for writing: $!\n";
-
- print CACHE join(":", @Podpath) . "\n$podroot\n";
- foreach my $key (keys %Items) {
- print CACHE "$key $Items{$key}\n";
- }
-
- close(CACHE);
-
- # cache the directory list for later use
- warn "caching directories for later use\n" if $Verbose;
- open(CACHE, ">$Dircache") ||
- die "$0: error open $Dircache for writing: $!\n";
-
- print CACHE join(":", @Podpath) . "\n$podroot\n";
- foreach my $key (keys %Pages) {
- print CACHE "$key $Pages{$key}\n";
- }
-
- close(CACHE);
-}
-
-#
-# scan_dir - scans the directory specified in $dir for subdirectories, .pod
-# files, and .pm files. notes those that it finds. this information will
-# be used later in order to figure out where the pages specified in L<>
-# links are on the filesystem.
-#
-sub scan_dir {
- my($dir, $recurse) = @_;
- my($t, @subdirs, @pods, $pod, $dirname, @dirs);
- local $_;
-
- @subdirs = ();
- @pods = ();
-
- opendir(DIR, $dir) ||
- die "$0: error opening directory $dir: $!\n";
- while (defined($_ = readdir(DIR))) {
- if (-d "$dir/$_" && $_ ne "." && $_ ne ".."
- && ($HiddenDirs || !/^\./)
- ) { # directory
- $Pages{$_} = "" unless defined $Pages{$_};
- $Pages{$_} .= "$dir/$_:";
- push(@subdirs, $_);
- } elsif (/\.pod\z/) { # .pod
- s/\.pod\z//;
- $Pages{$_} = "" unless defined $Pages{$_};
- $Pages{$_} .= "$dir/$_.pod:";
- push(@pods, "$dir/$_.pod");
- } elsif (/\.html\z/) { # .html
- s/\.html\z//;
- $Pages{$_} = "" unless defined $Pages{$_};
- $Pages{$_} .= "$dir/$_.pod:";
- } elsif (/\.pm\z/) { # .pm
- s/\.pm\z//;
- $Pages{$_} = "" unless defined $Pages{$_};
- $Pages{$_} .= "$dir/$_.pm:";
- push(@pods, "$dir/$_.pm");
- } elsif (-T "$dir/$_") { # script(?)
- local *F;
- if (open(F, "$dir/$_")) {
- my $line;
- while (defined($line = <F>)) {
- if ($line =~ /^=(?:pod|head1)/) {
- $Pages{$_} = "" unless defined $Pages{$_};
- $Pages{$_} .= "$dir/$_.pod:";
- last;
- }
- }
- close(F);
- }
- }
- }
- closedir(DIR);
-
- # recurse on the subdirectories if necessary
- if ($recurse) {
- foreach my $subdir (@subdirs) {
- scan_dir("$dir/$subdir", $recurse);
- }
- }
-}
-
-#
-# scan_headings - scan a pod file for head[1-6] tags, note the tags, and
-# build an index.
-#
-sub scan_headings {
- my($sections, @data) = @_;
- my($tag, $which_head, $otitle, $listdepth, $index);
-
- local $Ignore = 0;
-
- $listdepth = 0;
- $index = "";
-
- # scan for =head directives, note their name, and build an index
- # pointing to each of them.
- foreach my $line (@data) {
- if ($line =~ /^=(head)([1-6])\s+(.*)/) {
- ($tag, $which_head, $otitle) = ($1,$2,$3);
-
- my $title = depod( $otitle );
- my $name = anchorify( $title );
- $$sections{$name} = 1;
- $title = process_text( \$otitle );
-
- while ($which_head != $listdepth) {
- if ($which_head > $listdepth) {
- $index .= "\n" . ("\t" x $listdepth) . "<ul>\n";
- $listdepth++;
- } elsif ($which_head < $listdepth) {
- $listdepth--;
- $index .= "\n" . ("\t" x $listdepth) . "</ul>\n";
- }
- }
-
- $index .= "\n" . ("\t" x $listdepth) . "<li>" .
- "<a href=\"#" . $name . "\">" .
- $title . "</a></li>";
- }
- }
-
- # finish off the lists
- while ($listdepth--) {
- $index .= "\n" . ("\t" x $listdepth) . "</ul>\n";
- }
-
- # get rid of bogus lists
- $index =~ s,\t*<ul>\s*</ul>\n,,g;
-
- return $index;
-}
-
-#
-# scan_items - scans the pod specified by $pod for =item directives. we
-# will use this information later on in resolving C<> links.
-#
-sub scan_items {
- my( $itemref, $pod, @poddata ) = @_;
- my($i, $item);
- local $_;
-
- $pod =~ s/\.pod\z//;
- $pod .= ".html" if $pod;
-
- foreach $i (0..$#poddata) {
- my $txt = depod( $poddata[$i] );
-
- # figure out what kind of item it is.
- # Build string for referencing this item.
- if ( $txt =~ /\A=item\s+\*\s*(.*)\Z/s ) { # bulleted list
- next unless $1;
- $item = $1;
- } elsif( $txt =~ /\A=item\s+(?>\d+\.?)\s*(.*)\Z/s ) { # numbered list
- $item = $1;
- } elsif( $txt =~ /\A=item\s+(.*)\Z/s ) { # definition list
- $item = $1;
- } else {
- next;
- }
- my $fid = fragment_id( $item );
- $$itemref{$fid} = "$pod" if $fid;
- }
-}
-
-#
-# process_head - convert a pod head[1-6] tag and convert it to HTML format.
-#
-sub process_head {
- my($tag, $heading, $hasindex) = @_;
-
- # figure out the level of the =head
- $tag =~ /head([1-6])/;
- my $level = $1;
-
- finish_list();
-
- print HTML "<p>\n";
- if( $level == 1 && ! $Top ){
- print HTML "<a href=\"#__index__\"><small>$Backlink</small></a>\n"
- if $hasindex and $Backlink;
- print HTML "</p>\n<hr />\n"
- } else {
- print HTML "</p>\n";
- }
-
- my $name = anchorify( depod( $heading ) );
- my $convert = process_text( \$heading );
- print HTML "<h$level><a name=\"$name\">$convert</a></h$level>\n";
-}
-
-
-#
-# emit_item_tag - print an =item's text
-# Note: The global $EmittedItem is used for inhibiting self-references.
-#
-my $EmittedItem;
-
-sub emit_item_tag($$$){
- my( $otext, $text, $compact ) = @_;
- my $item = fragment_id( $text );
-
- $EmittedItem = $item;
- ### print STDERR "emit_item_tag=$item ($text)\n";
-
- print HTML '<strong>';
- if ($Items_Named{$item}++) {
- print HTML process_text( \$otext );
- } else {
- my $name = 'item_' . $item;
- $name = anchorify($name);
- print HTML qq{<a name="$name">}, process_text( \$otext ), '</a>';
- }
- print HTML "</strong>";
- undef( $EmittedItem );
-}
-
-sub new_listitem {
- my( $tag ) = @_;
- # Open tag for definition list as we have something to put in it
- if( ($tag ne 'dl') && ($ListNewTerm) ){
- print HTML "<dd>\n";
- $ListNewTerm = 0;
- }
-
- if( $Items_Seen[$Listlevel]++ == 0 ){
- # start of new list
- push( @Listtype, "$tag" );
- print HTML "<$tag>\n";
- } else {
- # if this is not the first item, close the previous one
- if ( $tag eq 'dl' ){
- print HTML "</dd>\n" unless $ListNewTerm;
- } else {
- print HTML "</li>\n";
- }
- }
- my $opentag = $tag eq 'dl' ? 'dt' : 'li';
- print HTML "<$opentag>";
-}
-
-#
-# process_item - convert a pod item tag and convert it to HTML format.
-#
-sub process_item {
- my( $otext ) = @_;
-
- # lots of documents start a list without doing an =over. this is
- # bad! but, the proper thing to do seems to be to just assume
- # they did do an =over. so warn them once and then continue.
- if( $Listlevel == 0 ){
- warn "$0: $Podfile: unexpected =item directive in paragraph $Paragraph. ignoring.\n" unless $Quiet;
- process_over();
- }
-
- # remove formatting instructions from the text
- my $text = depod( $otext );
-
- # all the list variants:
- if( $text =~ /\A\*/ ){ # bullet
- new_listitem( 'ul' );
- if ($text =~ /\A\*\s+(.+)\Z/s ) { # with additional text
- my $tag = $1;
- $otext =~ s/\A\*\s+//;
- emit_item_tag( $otext, $tag, 1 );
- print HTML "\n";
- }
-
- } elsif( $text =~ /\A\d+/ ){ # numbered list
- new_listitem( 'ol' );
- if ($text =~ /\A(?>\d+\.?)\s*(.+)\Z/s ) { # with additional text
- my $tag = $1;
- $otext =~ s/\A\d+\.?\s*//;
- emit_item_tag( $otext, $tag, 1 );
- print HTML "\n";
- }
-
- } else { # definition list
- # new_listitem takes care of opening the <dt> tag
- new_listitem( 'dl' );
- if( $text =~ /\A(.+)\Z/s ){ # should have text
- emit_item_tag( $otext, $text, 1 );
- } else {
- warn "$0: $Podfile: no term text provided for definition list in paragraph $Paragraph. ignoring.\n" unless $Quiet;
- }
- # write the definition term and close <dt> tag
- print HTML "</dt>\n";
- # trigger opening a <dd> tag for the actual definition; will not
- # happen if next paragraph is also a definition term (=item)
- $ListNewTerm = 1;
- }
- print HTML "\n";
-}
-
-#
-# process_over - process a pod over tag and start a corresponding HTML list.
-#
-sub process_over {
- # start a new list
- $Listlevel++;
- push( @Items_Seen, 0 );
-}
-
-#
-# process_back - process a pod back tag and convert it to HTML format.
-#
-sub process_back {
- if( $Listlevel == 0 ){
- warn "$0: $Podfile: unexpected =back directive in paragraph $Paragraph. ignoring.\n" unless $Quiet;
- return;
- }
-
- # close off the list. note, I check to see if $Listtype[$Listlevel] is
- # defined because an =item directive may have never appeared and thus
- # $Listtype[$Listlevel] may have never been initialized.
- $Listlevel--;
- if( defined $Listtype[$Listlevel] ){
- if ( $Listtype[$Listlevel] eq 'dl' ){
- print HTML "</dd>\n" unless $ListNewTerm;
- } else {
- print HTML "</li>\n";
- }
- print HTML "</$Listtype[$Listlevel]>\n";
- pop( @Listtype );
- $ListNewTerm = 0;
- }
-
- # clean up item count
- pop( @Items_Seen );
-}
-
-#
-# process_cut - process a pod cut tag, thus start ignoring pod directives.
-#
-sub process_cut {
- $Ignore = 1;
-}
-
-#
-# process_pod - process a pod tag, thus stop ignoring pod directives
-# until we see a corresponding cut.
-#
-sub process_pod {
- # no need to set $Ignore to 0 cause the main loop did it
-}
-
-#
-# process_for - process a =for pod tag. if it's for html, spit
-# it out verbatim, if illustration, center it, otherwise ignore it.
-#
-sub process_for {
- my($whom, $text) = @_;
- if ( $whom =~ /^(pod2)?html$/i) {
- print HTML $text;
- } elsif ($whom =~ /^illustration$/i) {
- 1 while chomp $text;
- for my $ext (qw[.png .gif .jpeg .jpg .tga .pcl .bmp]) {
- $text .= $ext, last if -r "$text$ext";
- }
- print HTML qq{<p align="center"><img src="$text" alt="$text illustration" /></p>};
- }
-}
-
-#
-# process_begin - process a =begin pod tag. this pushes
-# whom we're beginning on the begin stack. if there's a
-# begin stack, we only print if it us.
-#
-sub process_begin {
- my($whom, $text) = @_;
- $whom = lc($whom);
- push (@Begin_Stack, $whom);
- if ( $whom =~ /^(pod2)?html$/) {
- print HTML $text if $text;
- }
-}
-
-#
-# process_end - process a =end pod tag. pop the
-# begin stack. die if we're mismatched.
-#
-sub process_end {
- my($whom, $text) = @_;
- $whom = lc($whom);
- if ($Begin_Stack[-1] ne $whom ) {
- die "Unmatched begin/end at chunk $Paragraph\n"
- }
- pop( @Begin_Stack );
-}
-
-#
-# process_pre - indented paragraph, made into <pre></pre>
-#
-sub process_pre {
- my( $text ) = @_;
- my( $rest );
- return if $Ignore;
-
- $rest = $$text;
-
- # insert spaces in place of tabs
- $rest =~ s#(.+)#
- my $line = $1;
- 1 while $line =~ s/(\t+)/' ' x ((length($1) * 8) - $-[0] % 8)/e;
- $line;
- #eg;
-
- # convert some special chars to HTML escapes
- $rest = html_escape($rest);
-
- # try and create links for all occurrences of perl.* within
- # the preformatted text.
- $rest =~ s{
- (\s*)(perl\w+)
- }{
- if ( defined $Pages{$2} ){ # is a link
- qq($1<a href="$Htmlroot/$Pages{$2}">$2</a>);
- } elsif (defined $Pages{dosify($2)}) { # is a link
- qq($1<a href="$Htmlroot/$Pages{dosify($2)}">$2</a>);
- } else {
- "$1$2";
- }
- }xeg;
- $rest =~ s{
- (<a\ href="?) ([^>:]*:)? ([^>:]*) \.pod: ([^>:]*:)?
- }{
- my $url ;
- if ( $Htmlfileurl ne '' ){
- # Here, we take advantage of the knowledge
- # that $Htmlfileurl ne '' implies $Htmlroot eq ''.
- # Since $Htmlroot eq '', we need to prepend $Htmldir
- # on the fron of the link to get the absolute path
- # of the link's target. We check for a leading '/'
- # to avoid corrupting links that are #, file:, etc.
- my $old_url = $3 ;
- $old_url = "$Htmldir$old_url" if $old_url =~ m{^\/};
- $url = relativize_url( "$old_url.html", $Htmlfileurl );
- } else {
- $url = "$3.html" ;
- }
- "$1$url" ;
- }xeg;
-
- # Look for embedded URLs and make them into links. We don't
- # relativize them since they are best left as the author intended.
-
- my $urls = '(' . join ('|', qw{
- http
- telnet
- mailto
- news
- gopher
- file
- wais
- ftp
- } )
- . ')';
-
- my $ltrs = '\w';
- my $gunk = '/#~:.?+=&%@!\-';
- my $punc = '.:!?\-;';
- my $any = "${ltrs}${gunk}${punc}";
-
- $rest =~ s{
- \b # start at word boundary
- ( # begin $1 {
- $urls : # need resource and a colon
- (?!:) # Ignore File::, among others.
- [$any] +? # followed by one or more of any valid
- # character, but be conservative and
- # take only what you need to....
- ) # end $1 }
- (?=
- &quot; &gt; # maybe pre-quoted '<a href="...">'
- | # or:
- [$punc]* # 0 or more punctuation
- (?: # followed
- [^$any] # by a non-url char
- | # or
- $ # end of the string
- ) #
- | # or else
- $ # then end of the string
- )
- }{<a href="$1">$1</a>}igox;
-
- # text should be as it is (verbatim)
- $$text = $rest;
-}
-
-
-#
-# pure text processing
-#
-# pure_text/inIS_text: differ with respect to automatic C<> recognition.
-# we don't want this to happen within IS
-#
-sub pure_text($){
- my $text = shift();
- process_puretext( $text, \$PTQuote, 1 );
-}
-
-sub inIS_text($){
- my $text = shift();
- process_puretext( $text, \$PTQuote, 0 );
-}
-
-#
-# process_puretext - process pure text (without pod-escapes) converting
-# double-quotes and handling implicit C<> links.
-#
-sub process_puretext {
- my($text, $quote, $notinIS) = @_;
-
- ## Guessing at func() or [\$\@%&]*var references in plain text is destined
- ## to produce some strange looking ref's. uncomment to disable:
- ## $notinIS = 0;
-
- my(@words, $lead, $trail);
-
- # convert double-quotes to single-quotes
- if( $$quote && $text =~ s/"/''/s ){
- $$quote = 0;
- }
- while ($text =~ s/"([^"]*)"/``$1''/sg) {};
- $$quote = 1 if $text =~ s/"/``/s;
-
- # keep track of leading and trailing white-space
- $lead = ($text =~ s/\A(\s+)//s ? $1 : "");
- $trail = ($text =~ s/(\s+)\Z//s ? $1 : "");
-
- # split at space/non-space boundaries
- @words = split( /(?<=\s)(?=\S)|(?<=\S)(?=\s)/, $text );
-
- # process each word individually
- foreach my $word (@words) {
- # skip space runs
- next if $word =~ /^\s*$/;
- # see if we can infer a link
- if( $notinIS && $word =~ /^(\w+)\((.*)\)$/ ) {
- # has parenthesis so should have been a C<> ref
- ## try for a pagename (perlXXX(1))?
- my( $func, $args ) = ( $1, $2 );
- if( $args =~ /^\d+$/ ){
- my $url = page_sect( $word, '' );
- if( defined $url ){
- $word = "<a href=\"$url\">the $word manpage</a>";
- next;
- }
- }
- ## try function name for a link, append tt'ed argument list
- $word = emit_C( $func, '', "($args)");
-
-#### disabled. either all (including $\W, $\w+{.*} etc.) or nothing.
-## } elsif( $notinIS && $word =~ /^[\$\@%&*]+\w+$/) {
-## # perl variables, should be a C<> ref
-## $word = emit_C( $word );
-
- } elsif ($word =~ m,^\w+://\w,) {
- # looks like a URL
- # Don't relativize it: leave it as the author intended
- $word = qq(<a href="$word">$word</a>);
- } elsif ($word =~ /[\w.-]+\@[\w-]+\.\w/) {
- # looks like an e-mail address
- my ($w1, $w2, $w3) = ("", $word, "");
- ($w1, $w2, $w3) = ("(", $1, ")$2") if $word =~ /^\((.*?)\)(,?)/;
- ($w1, $w2, $w3) = ("&lt;", $1, "&gt;$2") if $word =~ /^<(.*?)>(,?)/;
- $word = qq($w1<a href="mailto:$w2">$w2</a>$w3);
- } else {
- $word = html_escape($word) if $word =~ /["&<>]/;
- }
- }
-
- # put everything back together
- return $lead . join( '', @words ) . $trail;
-}
-
-
-#
-# process_text - handles plaintext that appears in the input pod file.
-# there may be pod commands embedded within the text so those must be
-# converted to html commands.
-#
-
-sub process_text1($$;$$);
-sub pattern ($) { $_[0] ? '[^\S\n]+'.('>' x ($_[0] + 1)) : '>' }
-sub closing ($) { local($_) = shift; (defined && s/\s+$//) ? length : 0 }
-
-sub process_text {
- return if $Ignore;
- my( $tref ) = @_;
- my $res = process_text1( 0, $tref );
- $$tref = $res;
-}
-
-sub process_text1($$;$$){
- my( $lev, $rstr, $func, $closing ) = @_;
- my $res = '';
-
- unless (defined $func) {
- $func = '';
- $lev++;
- }
-
- if( $func eq 'B' ){
- # B<text> - boldface
- $res = '<strong>' . process_text1( $lev, $rstr ) . '</strong>';
-
- } elsif( $func eq 'C' ){
- # C<code> - can be a ref or <code></code>
- # need to extract text
- my $par = go_ahead( $rstr, 'C', $closing );
-
- ## clean-up of the link target
- my $text = depod( $par );
-
- ### my $x = $par =~ /[BI]</ ? 'yes' : 'no' ;
- ### print STDERR "-->call emit_C($par) lev=$lev, par with BI=$x\n";
-
- $res = emit_C( $text, $lev > 1 || ($par =~ /[BI]</) );
-
- } elsif( $func eq 'E' ){
- # E<x> - convert to character
- $$rstr =~ s/^([^>]*)>//;
- my $escape = $1;
- $escape =~ s/^(\d+|X[\dA-F]+)$/#$1/i;
- $res = "&$escape;";
-
- } elsif( $func eq 'F' ){
- # F<filename> - italizice
- $res = '<em>' . process_text1( $lev, $rstr ) . '</em>';
-
- } elsif( $func eq 'I' ){
- # I<text> - italizice
- $res = '<em>' . process_text1( $lev, $rstr ) . '</em>';
-
- } elsif( $func eq 'L' ){
- # L<link> - link
- ## L<text|cross-ref> => produce text, use cross-ref for linking
- ## L<cross-ref> => make text from cross-ref
- ## need to extract text
- my $par = go_ahead( $rstr, 'L', $closing );
-
- # some L<>'s that shouldn't be:
- # a) full-blown URL's are emitted as-is
- if( $par =~ m{^\w+://}s ){
- return make_URL_href( $par );
- }
- # b) C<...> is stripped and treated as C<>
- if( $par =~ /^C<(.*)>$/ ){
- my $text = depod( $1 );
- return emit_C( $text, $lev > 1 || ($par =~ /[BI]</) );
- }
-
- # analyze the contents
- $par =~ s/\n/ /g; # undo word-wrapped tags
- my $opar = $par;
- my $linktext;
- if( $par =~ s{^([^|]+)\|}{} ){
- $linktext = $1;
- }
-
- # make sure sections start with a /
- $par =~ s{^"}{/"};
-
- my( $page, $section, $ident );
-
- # check for link patterns
- if( $par =~ m{^([^/]+?)/(?!")(.*?)$} ){ # name/ident
- # we've got a name/ident (no quotes)
- ( $page, $ident ) = ( $1, $2 );
- ### print STDERR "--> L<$par> to page $page, ident $ident\n";
-
- } elsif( $par =~ m{^(.*?)/"?(.*?)"?$} ){ # [name]/"section"
- # even though this should be a "section", we go for ident first
- ( $page, $ident ) = ( $1, $2 );
- ### print STDERR "--> L<$par> to page $page, section $section\n";
-
- } elsif( $par =~ /\s/ ){ # this must be a section with missing quotes
- ( $page, $section ) = ( '', $par );
- ### print STDERR "--> L<$par> to void page, section $section\n";
-
- } else {
- ( $page, $section ) = ( $par, '' );
- ### print STDERR "--> L<$par> to page $par, void section\n";
- }
-
- # now, either $section or $ident is defined. the convoluted logic
- # below tries to resolve L<> according to what the user specified.
- # failing this, we try to find the next best thing...
- my( $url, $ltext, $fid );
-
- RESOLVE: {
- if( defined $ident ){
- ## try to resolve $ident as an item
- ( $url, $fid ) = coderef( $page, $ident );
- if( $url ){
- if( ! defined( $linktext ) ){
- $linktext = $ident;
- $linktext .= " in " if $ident && $page;
- $linktext .= "the $page manpage" if $page;
- }
- ### print STDERR "got coderef url=$url\n";
- last RESOLVE;
- }
- ## no luck: go for a section (auto-quoting!)
- $section = $ident;
- }
- ## now go for a section
- my $htmlsection = htmlify( $section );
- $url = page_sect( $page, $htmlsection );
- if( $url ){
- if( ! defined( $linktext ) ){
- $linktext = $section;
- $linktext .= " in " if $section && $page;
- $linktext .= "the $page manpage" if $page;
- }
- ### print STDERR "got page/section url=$url\n";
- last RESOLVE;
- }
- ## no luck: go for an ident
- if( $section ){
- $ident = $section;
- } else {
- $ident = $page;
- $page = undef();
- }
- ( $url, $fid ) = coderef( $page, $ident );
- if( $url ){
- if( ! defined( $linktext ) ){
- $linktext = $ident;
- $linktext .= " in " if $ident && $page;
- $linktext .= "the $page manpage" if $page;
- }
- ### print STDERR "got section=>coderef url=$url\n";
- last RESOLVE;
- }
-
- # warning; show some text.
- $linktext = $opar unless defined $linktext;
- warn "$0: $Podfile: cannot resolve L<$opar> in paragraph $Paragraph.\n" unless $Quiet;
- }
-
- # now we have a URL or just plain code
- $$rstr = $linktext . '>' . $$rstr;
- if( defined( $url ) ){
- $res = "<a href=\"$url\">" . process_text1( $lev, $rstr ) . '</a>';
- } else {
- $res = '<em>' . process_text1( $lev, $rstr ) . '</em>';
- }
-
- } elsif( $func eq 'S' ){
- # S<text> - non-breaking spaces
- $res = process_text1( $lev, $rstr );
- $res =~ s/ /&nbsp;/g;
-
- } elsif( $func eq 'X' ){
- # X<> - ignore
- $$rstr =~ s/^[^>]*>//;
-
- } elsif( $func eq 'Z' ){
- # Z<> - empty
- warn "$0: $Podfile: invalid X<> in paragraph $Paragraph.\n"
- unless $$rstr =~ s/^>// or $Quiet;
-
- } else {
- my $term = pattern $closing;
- while( $$rstr =~ s/\A(.*?)(([BCEFILSXZ])<(<+[^\S\n]+)?|$term)//s ){
- # all others: either recurse into new function or
- # terminate at closing angle bracket(s)
- my $pt = $1;
- $pt .= $2 if !$3 && $lev == 1;
- $res .= $lev == 1 ? pure_text( $pt ) : inIS_text( $pt );
- return $res if !$3 && $lev > 1;
- if( $3 ){
- $res .= process_text1( $lev, $rstr, $3, closing $4 );
- }
- }
- if( $lev == 1 ){
- $res .= pure_text( $$rstr );
- } else {
- warn "$0: $Podfile: undelimited $func<> in paragraph $Paragraph.\n" unless $Quiet;
- }
- }
- return $res;
-}
-
-#
-# go_ahead: extract text of an IS (can be nested)
-#
-sub go_ahead($$$){
- my( $rstr, $func, $closing ) = @_;
- my $res = '';
- my @closing = ($closing);
- while( $$rstr =~
- s/\A(.*?)(([BCEFILSXZ])<(<+[^\S\n]+)?|@{[pattern $closing[0]]})//s ){
- $res .= $1;
- unless( $3 ){
- shift @closing;
- return $res unless @closing;
- } else {
- unshift @closing, closing $4;
- }
- $res .= $2;
- }
- warn "$0: $Podfile: undelimited $func<> in paragraph $Paragraph.\n" unless $Quiet;
- return $res;
-}
-
-#
-# emit_C - output result of C<text>
-# $text is the depod-ed text
-#
-sub emit_C($;$$){
- my( $text, $nocode, $args ) = @_;
- $args = '' unless defined $args;
- my $res;
- my( $url, $fid ) = coderef( undef(), $text );
-
- # need HTML-safe text
- my $linktext = html_escape( "$text$args" );
-
- if( defined( $url ) &&
- (!defined( $EmittedItem ) || $EmittedItem ne $fid ) ){
- $res = "<a href=\"$url\"><code>$linktext</code></a>";
- } elsif( 0 && $nocode ){
- $res = $linktext;
- } else {
- $res = "<code>$linktext</code>";
- }
- return $res;
-}
-
-#
-# html_escape: make text safe for HTML
-#
-sub html_escape {
- my $rest = $_[0];
- $rest =~ s/&/&amp;/g;
- $rest =~ s/</&lt;/g;
- $rest =~ s/>/&gt;/g;
- $rest =~ s/"/&quot;/g;
- # &apos; is only in XHTML, not HTML4. Be conservative
- #$rest =~ s/'/&apos;/g;
- return $rest;
-}
-
-
-#
-# dosify - convert filenames to 8.3
-#
-sub dosify {
- my($str) = @_;
- return lc($str) if $^O eq 'VMS'; # VMS just needs casing
- if ($Is83) {
- $str = lc $str;
- $str =~ s/(\.\w+)/substr ($1,0,4)/ge;
- $str =~ s/(\w+)/substr ($1,0,8)/ge;
- }
- return $str;
-}
-
-#
-# page_sect - make a URL from the text of a L<>
-#
-sub page_sect($$) {
- my( $page, $section ) = @_;
- my( $linktext, $page83, $link); # work strings
-
- # check if we know that this is a section in this page
- if (!defined $Pages{$page} && defined $Sections{$page}) {
- $section = $page;
- $page = "";
- ### print STDERR "reset page='', section=$section\n";
- }
-
- $page83=dosify($page);
- $page=$page83 if (defined $Pages{$page83});
- if ($page eq "") {
- $link = "#" . anchorify( $section );
- } elsif ( $page =~ /::/ ) {
- $page =~ s,::,/,g;
- # Search page cache for an entry keyed under the html page name,
- # then look to see what directory that page might be in. NOTE:
- # this will only find one page. A better solution might be to produce
- # an intermediate page that is an index to all such pages.
- my $page_name = $page ;
- $page_name =~ s,^.*/,,s ;
- if ( defined( $Pages{ $page_name } ) &&
- $Pages{ $page_name } =~ /([^:]*$page)\.(?:pod|pm):/
- ) {
- $page = $1 ;
- }
- else {
- # NOTE: This branch assumes that all A::B pages are located in
- # $Htmlroot/A/B.html . This is often incorrect, since they are
- # often in $Htmlroot/lib/A/B.html or such like. Perhaps we could
- # analyze the contents of %Pages and figure out where any
- # cousins of A::B are, then assume that. So, if A::B isn't found,
- # but A::C is found in lib/A/C.pm, then A::B is assumed to be in
- # lib/A/B.pm. This is also limited, but it's an improvement.
- # Maybe a hints file so that the links point to the correct places
- # nonetheless?
-
- }
- $link = "$Htmlroot/$page.html";
- $link .= "#" . anchorify( $section ) if ($section);
- } elsif (!defined $Pages{$page}) {
- $link = "";
- } else {
- $section = anchorify( $section ) if $section ne "";
- ### print STDERR "...section=$section\n";
-
- # if there is a directory by the name of the page, then assume that an
- # appropriate section will exist in the subdirectory
-# if ($section ne "" && $Pages{$page} =~ /([^:]*[^(\.pod|\.pm)]):/) {
- if ($section ne "" && $Pages{$page} =~ /([^:]*(?<!\.pod)(?<!\.pm)):/) {
- $link = "$Htmlroot/$1/$section.html";
- ### print STDERR "...link=$link\n";
-
- # since there is no directory by the name of the page, the section will
- # have to exist within a .html of the same name. thus, make sure there
- # is a .pod or .pm that might become that .html
- } else {
- $section = "#$section" if $section;
- ### print STDERR "...section=$section\n";
-
- # check if there is a .pod with the page name
- if ($Pages{$page} =~ /([^:]*)\.pod:/) {
- $link = "$Htmlroot/$1.html$section";
- } elsif ($Pages{$page} =~ /([^:]*)\.pm:/) {
- $link = "$Htmlroot/$1.html$section";
- } else {
- $link = "";
- }
- }
- }
-
- if ($link) {
- # Here, we take advantage of the knowledge that $Htmlfileurl ne ''
- # implies $Htmlroot eq ''. This means that the link in question
- # needs a prefix of $Htmldir if it begins with '/'. The test for
- # the initial '/' is done to avoid '#'-only links, and to allow
- # for other kinds of links, like file:, ftp:, etc.
- my $url ;
- if ( $Htmlfileurl ne '' ) {
- $link = "$Htmldir$link" if $link =~ m{^/}s;
- $url = relativize_url( $link, $Htmlfileurl );
-# print( " b: [$link,$Htmlfileurl,$url]\n" );
- }
- else {
- $url = $link ;
- }
- return $url;
-
- } else {
- return undef();
- }
-}
-
-#
-# relativize_url - convert an absolute URL to one relative to a base URL.
-# Assumes both end in a filename.
-#
-sub relativize_url {
- my ($dest,$source) = @_ ;
-
- my ($dest_volume,$dest_directory,$dest_file) =
- File::Spec::Unix->splitpath( $dest ) ;
- $dest = File::Spec::Unix->catpath( $dest_volume, $dest_directory, '' ) ;
-
- my ($source_volume,$source_directory,$source_file) =
- File::Spec::Unix->splitpath( $source ) ;
- $source = File::Spec::Unix->catpath( $source_volume, $source_directory, '' ) ;
-
- my $rel_path = '' ;
- if ( $dest ne '' ) {
- $rel_path = File::Spec::Unix->abs2rel( $dest, $source ) ;
- }
-
- if ( $rel_path ne '' &&
- substr( $rel_path, -1 ) ne '/' &&
- substr( $dest_file, 0, 1 ) ne '#'
- ) {
- $rel_path .= "/$dest_file" ;
- }
- else {
- $rel_path .= "$dest_file" ;
- }
-
- return $rel_path ;
-}
-
-
-#
-# coderef - make URL from the text of a C<>
-#
-sub coderef($$){
- my( $page, $item ) = @_;
- my( $url );
-
- my $fid = fragment_id( $item );
- if( defined( $page ) && $page ne "" ){
- # we have been given a $page...
- $page =~ s{::}{/}g;
-
- # Do we take it? Item could be a section!
- my $base = $Items{$fid} || "";
- $base =~ s{[^/]*/}{};
- if( $base ne "$page.html" ){
- ### print STDERR "coderef( $page, $item ): items{$fid} = $Items{$fid} = $base => discard page!\n";
- $page = undef();
- }
-
- } else {
- # no page - local items precede cached items
- if( defined( $fid ) ){
- if( exists $Local_Items{$fid} ){
- $page = $Local_Items{$fid};
- } else {
- $page = $Items{$fid};
- }
- }
- }
-
- # if there was a pod file that we found earlier with an appropriate
- # =item directive, then create a link to that page.
- if( defined $page ){
- if( $page ){
- if( exists $Pages{$page} and $Pages{$page} =~ /([^:.]*)\.[^:]*:/){
- $page = $1 . '.html';
- }
- my $link = "$Htmlroot/$page#item_" . anchorify($fid);
-
- # Here, we take advantage of the knowledge that $Htmlfileurl
- # ne '' implies $Htmlroot eq ''.
- if ( $Htmlfileurl ne '' ) {
- $link = "$Htmldir$link" ;
- $url = relativize_url( $link, $Htmlfileurl ) ;
- } else {
- $url = $link ;
- }
- } else {
- $url = "#item_" . anchorify($fid);
- }
-
- confess "url has space: $url" if $url =~ /"[^"]*\s[^"]*"/;
- }
- return( $url, $fid );
-}
-
-
-
-#
-# Adapted from Nick Ing-Simmons' PodToHtml package.
-sub relative_url {
- my $source_file = shift ;
- my $destination_file = shift;
-
- my $source = URI::file->new_abs($source_file);
- my $uo = URI::file->new($destination_file,$source)->abs;
- return $uo->rel->as_string;
-}
-
-
-#
-# finish_list - finish off any pending HTML lists. this should be called
-# after the entire pod file has been read and converted.
-#
-sub finish_list {
- if( $Listlevel ){
- warn "$0: $Podfile: unterminated list(s) at =head in paragraph $Paragraph. ignoring.\n" unless $Quiet;
- while( $Listlevel ){
- process_back();
- }
- }
-}
-
-#
-# htmlify - converts a pod section specification to a suitable section
-# specification for HTML. Note that we keep spaces and special characters
-# except ", ? (Netscape problem) and the hyphen (writer's problem...).
-#
-sub htmlify {
- my( $heading) = @_;
- $heading =~ s/(\s+)/ /g;
- $heading =~ s/\s+\Z//;
- $heading =~ s/\A\s+//;
- # The hyphen is a disgrace to the English language.
- $heading =~ s/[-"?]//g;
- $heading = lc( $heading );
- return $heading;
-}
-
-#
-# similar to htmlify, but turns non-alphanumerics into underscores
-#
-sub anchorify {
- my ($anchor) = @_;
- $anchor = htmlify($anchor);
- $anchor =~ s/\W/_/g;
- return $anchor;
-}
-
-#
-# depod - convert text by eliminating all interior sequences
-# Note: can be called with copy or modify semantics
-#
-my %E2c;
-$E2c{lt} = '<';
-$E2c{gt} = '>';
-$E2c{sol} = '/';
-$E2c{verbar} = '|';
-$E2c{amp} = '&'; # in Tk's pods
-
-sub depod1($;$$);
-
-sub depod($){
- my $string;
- if( ref( $_[0] ) ){
- $string = ${$_[0]};
- ${$_[0]} = depod1( \$string );
- } else {
- $string = $_[0];
- depod1( \$string );
- }
-}
-
-sub depod1($;$$){
- my( $rstr, $func, $closing ) = @_;
- my $res = '';
- return $res unless defined $$rstr;
- if( ! defined( $func ) ){
- # skip to next begin of an interior sequence
- while( $$rstr =~ s/\A(.*?)([BCEFILSXZ])<(<+[^\S\n]+)?// ){
- # recurse into its text
- $res .= $1 . depod1( $rstr, $2, closing $3);
- }
- $res .= $$rstr;
- } elsif( $func eq 'E' ){
- # E<x> - convert to character
- $$rstr =~ s/^([^>]*)>//;
- $res .= $E2c{$1} || "";
- } elsif( $func eq 'X' ){
- # X<> - ignore
- $$rstr =~ s/^[^>]*>//;
- } elsif( $func eq 'Z' ){
- # Z<> - empty
- $$rstr =~ s/^>//;
- } else {
- # all others: either recurse into new function or
- # terminate at closing angle bracket
- my $term = pattern $closing;
- while( $$rstr =~ s/\A(.*?)(([BCEFILSXZ])<(<+[^\S\n]+)?|$term)// ){
- $res .= $1;
- last unless $3;
- $res .= depod1( $rstr, $3, closing $4 );
- }
- ## If we're here and $2 ne '>': undelimited interior sequence.
- ## Ignored, as this is called without proper indication of where we are.
- ## Rely on process_text to produce diagnostics.
- }
- return $res;
-}
-
-#
-# fragment_id - construct a fragment identifier from:
-# a) =item text
-# b) contents of C<...>
-#
-my @HC;
-sub fragment_id {
- my $text = shift();
- $text =~ s/\s+\Z//s;
- if( $text ){
- # a method or function?
- return $1 if $text =~ /(\w+)\s*\(/;
- return $1 if $text =~ /->\s*(\w+)\s*\(?/;
-
- # a variable name?
- return $1 if $text =~ /^([\$\@%*]\S+)/;
-
- # some pattern matching operator?
- return $1 if $text =~ m|^(\w+/).*/\w*$|;
-
- # fancy stuff... like "do { }"
- return $1 if $text =~ m|^(\w+)\s*{.*}$|;
-
- # honour the perlfunc manpage: func [PAR[,[ ]PAR]...]
- # and some funnies with ... Module ...
- return $1 if $text =~ m{^([a-z\d_]+)(\s+[A-Z\d,/& ]+)?$};
- return $1 if $text =~ m{^([a-z\d]+)\s+Module(\s+[A-Z\d,/& ]+)?$};
-
- # text? normalize!
- $text =~ s/\s+/_/sg;
- $text =~ s{(\W)}{
- defined( $HC[ord($1)] ) ? $HC[ord($1)]
- : ( $HC[ord($1)] = sprintf( "%%%02X", ord($1) ) ) }gxe;
- $text = substr( $text, 0, 50 );
- } else {
- return undef();
- }
-}
-
-#
-# make_URL_href - generate HTML href from URL
-# Special treatment for CGI queries.
-#
-sub make_URL_href($){
- my( $url ) = @_;
- if( $url !~
- s{^(http:[-\w/#~:.+=&%@!]+)(\?.*)$}{<a href="$1$2">$1</a>}i ){
- $url = "<a href=\"$url\">$url</a>";
- }
- return $url;
-}
-
-1;