603 lines
18 KiB
Perl
Executable File
603 lines
18 KiB
Perl
Executable File
#!./perl -w
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# This file should really be a extracted from a .PL
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use lib 'lib'; # use source library if present
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use Config; # for config options in the makefile
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use Getopt::Long; # for command-line parsing
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use Cwd;
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use Pod::Html;
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=head1 NAME
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installhtml - converts a collection of POD pages to HTML format.
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=head1 SYNOPSIS
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installhtml [--help] [--podpath=<name>:...:<name>] [--podroot=<name>]
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[--htmldir=<name>] [--htmlroot=<name>] [--norecurse] [--recurse]
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[--splithead=<name>,...,<name>] [--splititem=<name>,...,<name>]
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[--libpods=<name>,...,<name>] [--verbose]
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=head1 DESCRIPTION
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I<installhtml> converts a collection of POD pages to a corresponding
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collection of HTML pages. This is primarily used to convert the pod
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pages found in the perl distribution.
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=head1 OPTIONS
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=over 4
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=item B<--help> help
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Displays the usage.
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=item B<--podroot> POD search path base directory
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The base directory to search for all .pod and .pm files to be converted.
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Default is current directory.
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=item B<--podpath> POD search path
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The list of directories to search for .pod and .pm files to be converted.
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Default is `podroot/.'.
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=item B<--recurse> recurse on subdirectories
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Whether or not to convert all .pm and .pod files found in subdirectories
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too. Default is to not recurse.
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=item B<--htmldir> HTML destination directory
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The base directory which all HTML files will be written to. This should
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be a path relative to the filesystem, not the resulting URL.
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=item B<--htmlroot> URL base directory
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The base directory which all resulting HTML files will be visible at in
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a URL. The default is `/'.
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=item B<--splithead> POD files to split on =head directive
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Comma-separated list of pod files to split by the =head directive. The
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.pod suffix is optional. These files should have names specified
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relative to podroot.
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=item B<--splititem> POD files to split on =item directive
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Comma-separated list of all pod files to split by the =item directive.
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The .pod suffix is optional. I<installhtml> does not do the actual
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split, rather it invokes I<splitpod> to do the dirty work. As with
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--splithead, these files should have names specified relative to podroot.
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=item B<--splitpod> Directory containing the splitpod program
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The directory containing the splitpod program. The default is `podroot/pod'.
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=item B<--libpods> library PODs for LE<lt>E<gt> links
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Comma-separated list of "library" pod files. This is the same list that
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will be passed to pod2html when any pod is converted.
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=item B<--verbose> verbose output
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Self-explanatory.
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=back
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=head1 EXAMPLE
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The following command-line is an example of the one we use to convert
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perl documentation:
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./installhtml --podpath=lib:ext:pod:vms \
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--podroot=/usr/src/perl \
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--htmldir=/perl/nmanual \
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--htmlroot=/perl/nmanual \
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--splithead=pod/perlipc \
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--splititem=pod/perlfunc \
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--libpods=perlfunc,perlguts,perlvar,perlrun,perlop \
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--recurse \
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--verbose
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=head1 AUTHOR
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Chris Hall E<lt>hallc@cs.colorado.eduE<gt>
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=head1 TODO
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=cut
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$usage =<<END_OF_USAGE;
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Usage: $0 --help --podpath=<name>:...:<name> --podroot=<name>
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--htmldir=<name> --htmlroot=<name> --norecurse --recurse
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--splithead=<name>,...,<name> --splititem=<name>,...,<name>
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--libpods=<name>,...,<name> --verbose
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--help - this message
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--podpath - colon-separated list of directories containing .pod and
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.pm files to be converted (. by default).
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--podroot - filesystem base directory from which all relative paths in
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podpath stem (default is .).
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--htmldir - directory to store resulting html files in relative
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to the filesystem (\$podroot/html by default).
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--htmlroot - http-server base directory from which all relative paths
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in podpath stem (default is /).
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--libpods - comma-separated list of files to search for =item pod
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directives in as targets of C<> and implicit links (empty
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by default).
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--norecurse - don't recurse on those subdirectories listed in podpath.
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(default behavior).
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--recurse - recurse on those subdirectories listed in podpath
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--splithead - comma-separated list of .pod or .pm files to split. will
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split each file into several smaller files at every occurrence
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of a pod =head[1-6] directive.
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--splititem - comma-separated list of .pod or .pm files to split using
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splitpod.
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--splitpod - directory where the program splitpod can be found
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(\$podroot/pod by default).
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--verbose - self-explanatory.
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END_OF_USAGE
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@libpods = ();
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@podpath = ( "." ); # colon-separated list of directories containing .pod
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# and .pm files to be converted.
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$podroot = "."; # assume the pods we want are here
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$htmldir = ""; # nothing for now...
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$htmlroot = "/"; # default value
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$recurse = 0; # default behavior
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@splithead = (); # don't split any files by default
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@splititem = (); # don't split any files by default
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$splitpod = ""; # nothing for now.
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$verbose = 0; # whether or not to print debugging info
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$pod2html = "pod/pod2html";
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usage("") unless @ARGV;
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# Overcome shell's p1,..,p8 limitation.
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# See vms/descrip_mms.template -> descrip.mms for invokation.
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if ( $^O eq 'VMS' ) { @ARGV = split(/\s+/,$ARGV[0]); }
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# parse the command-line
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$result = GetOptions( qw(
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help
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podpath=s
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podroot=s
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htmldir=s
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htmlroot=s
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libpods=s
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recurse!
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splithead=s
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splititem=s
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splitpod=s
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verbose
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));
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usage("invalid parameters") unless $result;
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parse_command_line();
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# set these variables to appropriate values if the user didn't specify
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# values for them.
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$htmldir = "$htmlroot/html" unless $htmldir;
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$splitpod = "$podroot/pod" unless $splitpod;
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# make sure that the destination directory exists
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(mkdir($htmldir, 0755) ||
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die "$0: cannot make directory $htmldir: $!\n") if ! -d $htmldir;
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# the following array will eventually contain files that are to be
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# ignored in the conversion process. these are files that have been
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# process by splititem or splithead and should not be converted as a
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# result.
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@ignore = ();
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# split pods. its important to do this before convert ANY pods because
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# it may effect some of the links
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@splitdirs = (); # files in these directories won't get an index
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split_on_head($podroot, $htmldir, \@splitdirs, \@ignore, @splithead);
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split_on_item($podroot, \@splitdirs, \@ignore, @splititem);
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# convert the pod pages found in @poddirs
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#warn "converting files\n" if $verbose;
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#warn "\@ignore\t= @ignore\n" if $verbose;
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foreach $dir (@podpath) {
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installdir($dir, $recurse, $podroot, \@splitdirs, \@ignore);
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}
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# now go through and create master indices for each pod we split
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foreach $dir (@splititem) {
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print "creating index $htmldir/$dir.html\n" if $verbose;
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create_index("$htmldir/$dir.html", "$htmldir/$dir");
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}
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foreach $dir (@splithead) {
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$dir .= ".pod" unless $dir =~ /(\.pod|\.pm)$/;
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# let pod2html create the file
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runpod2html($dir, 1);
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# now go through and truncate after the index
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$dir =~ /^(.*?)(\.pod|\.pm)?$/sm;
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$file = "$htmldir/$1";
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print "creating index $file.html\n" if $verbose;
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# read in everything until what would have been the first =head
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# directive, patching the index as we go.
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open(H, "<$file.html") ||
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die "$0: error opening $file.html for input: $!\n";
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$/ = "";
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@data = ();
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while (<H>) {
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last if /NAME=/;
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$_ =~ s{HREF="#(.*)">}{
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my $url = "$file/$1.html" ;
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$url = Pod::Html::relativize_url( $url, "$file.html" )
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if ( ! defined $opt_htmlroot || $opt_htmlroot eq '' ) ;
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"HREF=\"$url\">" ;
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}eg;
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push @data, $_;
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}
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close(H);
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# now rewrite the file
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open(H, ">$file.html") ||
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die "$0: error opening $file.html for output: $!\n";
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print H "@data\n";
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close(H);
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}
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##############################################################################
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sub usage {
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warn "$0: @_\n" if @_;
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die $usage;
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}
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sub parse_command_line {
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usage() if defined $opt_help;
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$opt_help = ""; # make -w shut up
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# list of directories
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@podpath = split(":", $opt_podpath) if defined $opt_podpath;
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# lists of files
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@splithead = split(",", $opt_splithead) if defined $opt_splithead;
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@splititem = split(",", $opt_splititem) if defined $opt_splititem;
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@libpods = split(",", $opt_libpods) if defined $opt_libpods;
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$htmldir = $opt_htmldir if defined $opt_htmldir;
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$htmlroot = $opt_htmlroot if defined $opt_htmlroot;
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$podroot = $opt_podroot if defined $opt_podroot;
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$splitpod = $opt_splitpod if defined $opt_splitpod;
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$recurse = $opt_recurse if defined $opt_recurse;
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$verbose = $opt_verbose if defined $opt_verbose;
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}
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sub absolute_path {
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my($cwd, $path) = @_;
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return "$cwd/$path" unless $path =~ m:/:;
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# add cwd if path is not already an absolute path
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$path = "$cwd/$path" if (substr($path,0,1) ne '/');
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return $path;
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}
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sub create_index {
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my($html, $dir) = @_;
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my(@files, @filedata, @index, $file);
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my($lcp1,$lcp2);
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# get the list of .html files in this directory
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opendir(DIR, $dir) ||
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die "$0: error opening directory $dir for reading: $!\n";
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@files = sort(grep(/\.html?$/, readdir(DIR)));
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closedir(DIR);
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open(HTML, ">$html") ||
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die "$0: error opening $html for output: $!\n";
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# for each .html file in the directory, extract the index
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# embedded in the file and throw it into the big index.
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print HTML "<DL COMPACT>\n";
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foreach $file (@files) {
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$/ = "";
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open(IN, "<$dir/$file") ||
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die "$0: error opening $dir/$file for input: $!\n";
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@filedata = <IN>;
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close(IN);
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# pull out the NAME section
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($name) = grep(/NAME=/, @filedata);
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($lcp1,$lcp2) = ($name =~ m,/H1>\s(\S+)\s[\s-]*(.*?)\s*$,sm);
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if (defined $lcp1 and $lcp1 eq '<P>') { # Uninteresting. Try again.
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($lcp1,$lcp2) = ($name =~ m,/H1>\s<P>\s(\S+)\s[\s-]*(.*?)\s*$,sm);
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}
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my $url= "$dir/$file" ;
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if ( ! defined $opt_htmlroot || $opt_htmlroot eq '' ) {
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$url = Pod::Html::relativize_url( "$dir/$file", $html ) ;
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}
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print HTML qq(<A HREF="$url">);
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print HTML "<DT>$lcp1</A><DD>$lcp2\n" if defined $lcp1;
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# print HTML qq(<A HREF="$url">$lcp1</A><BR>\n") if defined $lcp1;
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next;
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@index = grep(/<!-- INDEX BEGIN -->.*<!-- INDEX END -->/s,
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@filedata);
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for (@index) {
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s/<!-- INDEX BEGIN -->(\s*<!--)(.*)(-->\s*)<!-- INDEX END -->/$lcp2/s;
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s,#,$dir/$file#,g;
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# print HTML "$_\n";
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print HTML "$_\n<P><HR><P>\n";
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}
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}
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print HTML "</DL>\n";
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close(HTML);
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}
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sub split_on_head {
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my($podroot, $htmldir, $splitdirs, $ignore, @splithead) = @_;
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my($pod, $dirname, $filename);
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# split the files specified in @splithead on =head[1-6] pod directives
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print "splitting files by head.\n" if $verbose && $#splithead >= 0;
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foreach $pod (@splithead) {
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# figure out the directory name and filename
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$pod =~ s,^([^/]*)$,/$1,;
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$pod =~ m,(.*?)/(.*?)(\.pod)?$,;
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$dirname = $1;
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$filename = "$2.pod";
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# since we are splitting this file it shouldn't be converted.
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push(@$ignore, "$podroot/$dirname/$filename");
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# split the pod
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splitpod("$podroot/$dirname/$filename", "$podroot/$dirname", $htmldir,
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$splitdirs);
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}
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}
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sub split_on_item {
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my($podroot, $splitdirs, $ignore, @splititem) = @_;
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my($pwd, $dirname, $filename);
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print "splitting files by item.\n" if $verbose && $#splititem >= 0;
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$pwd = getcwd();
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my $splitter = absolute_path($pwd, "$splitpod/splitpod");
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foreach $pod (@splititem) {
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# figure out the directory to split into
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$pod =~ s,^([^/]*)$,/$1,;
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$pod =~ m,(.*?)/(.*?)(\.pod)?$,;
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$dirname = "$1/$2";
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$filename = "$2.pod";
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# since we are splitting this file it shouldn't be converted.
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push(@$ignore, "$podroot/$dirname.pod");
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# split the pod
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push(@$splitdirs, "$podroot/$dirname");
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if (! -d "$podroot/$dirname") {
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mkdir("$podroot/$dirname", 0755) ||
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die "$0: error creating directory $podroot/$dirname: $!\n";
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}
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chdir("$podroot/$dirname") ||
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die "$0: error changing to directory $podroot/$dirname: $!\n";
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die "$splitter not found. Use '-splitpod dir' option.\n"
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unless -f $splitter;
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system("perl", $splitter, "../$filename") &&
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warn "$0: error running '$splitter ../$filename'"
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." from $podroot/$dirname";
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}
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chdir($pwd);
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}
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#
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# splitpod - splits a .pod file into several smaller .pod files
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# where a new file is started each time a =head[1-6] pod directive
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# is encountered in the input file.
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#
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sub splitpod {
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my($pod, $poddir, $htmldir, $splitdirs) = @_;
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my(@poddata, @filedata, @heads);
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my($file, $i, $j, $prevsec, $section, $nextsec);
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print "splitting $pod\n" if $verbose;
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# read the file in paragraphs
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$/ = "";
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open(SPLITIN, "<$pod") ||
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die "$0: error opening $pod for input: $!\n";
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@filedata = <SPLITIN>;
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close(SPLITIN) ||
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die "$0: error closing $pod: $!\n";
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# restore the file internally by =head[1-6] sections
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@poddata = ();
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for ($i = 0, $j = -1; $i <= $#filedata; $i++) {
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$j++ if ($filedata[$i] =~ /^\s*=head[1-6]/);
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if ($j >= 0) {
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$poddata[$j] = "" unless defined $poddata[$j];
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$poddata[$j] .= "\n$filedata[$i]" if $j >= 0;
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}
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}
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# create list of =head[1-6] sections so that we can rewrite
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# L<> links as necessary.
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%heads = ();
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foreach $i (0..$#poddata) {
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$heads{htmlize($1)} = 1 if $poddata[$i] =~ /=head[1-6]\s+(.*)/;
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}
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# create a directory of a similar name and store all the
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# files in there
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$pod =~ s,.*/(.*),$1,; # get the last part of the name
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$dir = $pod;
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$dir =~ s/\.pod//g;
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push(@$splitdirs, "$poddir/$dir");
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mkdir("$poddir/$dir", 0755) ||
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die "$0: could not create directory $poddir/$dir: $!\n"
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unless -d "$poddir/$dir";
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$poddata[0] =~ /^\s*=head[1-6]\s+(.*)/;
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$section = "";
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$nextsec = $1;
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# for each section of the file create a separate pod file
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for ($i = 0; $i <= $#poddata; $i++) {
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# determine the "prev" and "next" links
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$prevsec = $section;
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$section = $nextsec;
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if ($i < $#poddata) {
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$poddata[$i+1] =~ /^\s*=head[1-6]\s+(.*)/;
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$nextsec = $1;
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} else {
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$nextsec = "";
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}
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# determine an appropriate filename (this must correspond with
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# what pod2html will try and guess)
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# $poddata[$i] =~ /^\s*=head[1-6]\s+(.*)/;
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$file = "$dir/" . htmlize($section) . ".pod";
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# create the new .pod file
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print "\tcreating $poddir/$file\n" if $verbose;
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open(SPLITOUT, ">$poddir/$file") ||
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die "$0: error opening $poddir/$file for output: $!\n";
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$poddata[$i] =~ s,L<([^<>]*)>,
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defined $heads{htmlize($1)} ? "L<$dir/$1>" : "L<$1>"
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,ge;
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print SPLITOUT $poddata[$i]."\n\n";
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print SPLITOUT "=over 4\n\n";
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print SPLITOUT "=item *\n\nBack to L<$dir/\"$prevsec\">\n\n" if $prevsec;
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print SPLITOUT "=item *\n\nForward to L<$dir/\"$nextsec\">\n\n" if $nextsec;
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print SPLITOUT "=item *\n\nUp to L<$dir>\n\n";
|
|
print SPLITOUT "=back\n\n";
|
|
close(SPLITOUT) ||
|
|
die "$0: error closing $poddir/$file: $!\n";
|
|
}
|
|
}
|
|
|
|
|
|
#
|
|
# installdir - takes care of converting the .pod and .pm files in the
|
|
# current directory to .html files and then installing those.
|
|
#
|
|
sub installdir {
|
|
my($dir, $recurse, $podroot, $splitdirs, $ignore) = @_;
|
|
my(@dirlist, @podlist, @pmlist, $doindex);
|
|
|
|
@dirlist = (); # directories to recurse on
|
|
@podlist = (); # .pod files to install
|
|
@pmlist = (); # .pm files to install
|
|
|
|
# should files in this directory get an index?
|
|
$doindex = (grep($_ eq "$podroot/$dir", @$splitdirs) ? 0 : 1);
|
|
|
|
opendir(DIR, "$podroot/$dir")
|
|
|| die "$0: error opening directory $podroot/$dir: $!\n";
|
|
|
|
# find the directories to recurse on
|
|
@dirlist = map { if ($^O eq 'VMS') {/^(.*)\.dir$/i; "$dir/$1";} else {"$dir/$_";}}
|
|
grep(-d "$podroot/$dir/$_" && !/^\.{1,2}/, readdir(DIR)) if $recurse;
|
|
rewinddir(DIR);
|
|
|
|
# find all the .pod files within the directory
|
|
@podlist = map { /^(.*)\.pod$/; "$dir/$1" }
|
|
grep(! -d "$podroot/$dir/$_" && /\.pod$/, readdir(DIR));
|
|
rewinddir(DIR);
|
|
|
|
# find all the .pm files within the directory
|
|
@pmlist = map { /^(.*)\.pm$/; "$dir/$1" }
|
|
grep(! -d "$podroot/$dir/$_" && /\.pm$/, readdir(DIR));
|
|
|
|
closedir(DIR);
|
|
|
|
# recurse on all subdirectories we kept track of
|
|
foreach $dir (@dirlist) {
|
|
installdir($dir, $recurse, $podroot, $splitdirs, $ignore);
|
|
}
|
|
|
|
# install all the pods we found
|
|
foreach $pod (@podlist) {
|
|
# check if we should ignore it.
|
|
next if grep($_ eq "$podroot/$pod.pod", @$ignore);
|
|
|
|
# check if a .pm files exists too
|
|
if (grep($_ eq "$pod.pm", @pmlist)) {
|
|
print "$0: Warning both `$podroot/$pod.pod' and "
|
|
. "`$podroot/$pod.pm' exist, using pod\n";
|
|
push(@ignore, "$pod.pm");
|
|
}
|
|
runpod2html("$pod.pod", $doindex);
|
|
}
|
|
|
|
# install all the .pm files we found
|
|
foreach $pm (@pmlist) {
|
|
# check if we should ignore it.
|
|
next if grep($_ eq "$pm.pm", @ignore);
|
|
|
|
runpod2html("$pm.pm", $doindex);
|
|
}
|
|
}
|
|
|
|
|
|
#
|
|
# runpod2html - invokes pod2html to convert a .pod or .pm file to a .html
|
|
# file.
|
|
#
|
|
sub runpod2html {
|
|
my($pod, $doindex) = @_;
|
|
my($html, $i, $dir, @dirs);
|
|
|
|
$html = $pod;
|
|
$html =~ s/\.(pod|pm)$/.html/g;
|
|
|
|
# make sure the destination directories exist
|
|
@dirs = split("/", $html);
|
|
$dir = "$htmldir/";
|
|
for ($i = 0; $i < $#dirs; $i++) {
|
|
if (! -d "$dir$dirs[$i]") {
|
|
mkdir("$dir$dirs[$i]", 0755) ||
|
|
die "$0: error creating directory $dir$dirs[$i]: $!\n";
|
|
}
|
|
$dir .= "$dirs[$i]/";
|
|
}
|
|
|
|
# invoke pod2html
|
|
print "$podroot/$pod => $htmldir/$html\n" if $verbose;
|
|
#system("./pod2html",
|
|
Pod::Html'pod2html(
|
|
#Pod::Html'pod2html($pod2html,
|
|
"--htmldir=$htmldir",
|
|
"--htmlroot=$htmlroot",
|
|
"--podpath=".join(":", @podpath),
|
|
"--podroot=$podroot", "--netscape",
|
|
($doindex ? "--index" : "--noindex"),
|
|
"--" . ($recurse ? "" : "no") . "recurse",
|
|
($#libpods >= 0) ? "--libpods=" . join(":", @libpods) : "",
|
|
"--infile=$podroot/$pod", "--outfile=$htmldir/$html");
|
|
die "$0: error running $pod2html: $!\n" if $?;
|
|
}
|
|
|
|
sub htmlize { htmlify(0, @_) }
|