[p5sagit/p5-mst-13.2.git] / installhtml

#!./perl -w

# This file should really be a extracted from a .PL

use lib 'lib';		# use source library if present

use Config;		# for config options in the makefile
use Getopt::Long;	# for command-line parsing
use Cwd;
use Pod::Html;

umask 022;

=head1 NAME

installhtml - converts a collection of POD pages to HTML format.

=head1 SYNOPSIS

    installhtml  [--help] [--podpath=<name>:...:<name>] [--podroot=<name>]
         [--htmldir=<name>] [--htmlroot=<name>]  [--norecurse] [--recurse]
         [--splithead=<name>,...,<name>]   [--splititem=<name>,...,<name>]
	 [--libpods=<name>,...,<name>]  [--verbose]

=head1 DESCRIPTION

I<installhtml> converts a collection of POD pages to a corresponding
collection of HTML pages.  This is primarily used to convert the pod
pages found in the perl distribution.

=head1 OPTIONS

=over 4

=item B<--help> help

Displays the usage.

=item B<--podroot> POD search path base directory

The base directory to search for all .pod and .pm files to be converted.
Default is current directory.

=item B<--podpath> POD search path

The list of directories to search for .pod and .pm files to be converted.
Default is `podroot/.'.

=item B<--recurse> recurse on subdirectories

Whether or not to convert all .pm and .pod files found in subdirectories
too.  Default is to not recurse.

=item B<--htmldir> HTML destination directory

The base directory which all HTML files will be written to.  This should
be a path relative to the filesystem, not the resulting URL.

=item B<--htmlroot> URL base directory

The base directory which all resulting HTML files will be visible at in
a URL.  The default is `/'.

=item B<--splithead> POD files to split on =head directive

Comma-separated list of pod files to split by the =head directive.  The
.pod suffix is optional. These files should have names specified
relative to podroot.

=item B<--splititem> POD files to split on =item directive

Comma-separated list of all pod files to split by the =item directive.
The .pod suffix is optional.  I<installhtml> does not do the actual
split, rather it invokes I<splitpod> to do the dirty work.  As with
--splithead, these files should have names specified relative to podroot.

=item B<--splitpod> Directory containing the splitpod program

The directory containing the splitpod program. The default is `podroot/pod'.

=item B<--libpods> library PODs for LE<lt>E<gt> links

Comma-separated list of "library" pod files.  This is the same list that
will be passed to pod2html when any pod is converted.

=item B<--verbose> verbose output

Self-explanatory.

=back

=head1 EXAMPLE

The following command-line is an example of the one we use to convert
perl documentation:

    ./installhtml --podpath=lib:ext:pod:vms   \
			--podroot=/usr/src/perl     \
			--htmldir=/perl/nmanual     \
			--htmlroot=/perl/nmanual    \
			--splithead=pod/perlipc     \
			--splititem=pod/perlfunc    \
			--libpods=perlfunc,perlguts,perlvar,perlrun,perlop \
			--recurse \
			--verbose

=head1 AUTHOR

Chris Hall E<lt>hallc@cs.colorado.eduE<gt>

=head1 TODO

=cut

$usage =<<END_OF_USAGE;
Usage: $0 --help --podpath=<name>:...:<name> --podroot=<name>
         --htmldir=<name> --htmlroot=<name> --norecurse --recurse
         --splithead=<name>,...,<name> --splititem=<name>,...,<name>
	 --libpods=<name>,...,<name> --verbose

    --help      - this message
    --podpath   - colon-separated list of directories containing .pod and
                  .pm files to be converted (. by default).
    --podroot   - filesystem base directory from which all relative paths in
                  podpath stem (default is .).
    --htmldir   - directory to store resulting html files in relative
                  to the filesystem (\$podroot/html by default). 
    --htmlroot  - http-server base directory from which all relative paths
                  in podpath stem (default is /).
    --libpods   - comma-separated list of files to search for =item pod
                  directives in as targets of C<> and implicit links (empty
                  by default).
    --norecurse - don't recurse on those subdirectories listed in podpath.
                  (default behavior).
    --recurse   - recurse on those subdirectories listed in podpath
    --splithead - comma-separated list of .pod or .pm files to split.  will
                  split each file into several smaller files at every occurrence
                  of a pod =head[1-6] directive.
    --splititem - comma-separated list of .pod or .pm files to split using
                  splitpod.
    --splitpod  - directory where the program splitpod can be found
                  (\$podroot/pod by default).
    --verbose   - self-explanatory.

END_OF_USAGE

@libpods = ();
@podpath = ( "." );	# colon-separated list of directories containing .pod
			# and .pm files to be converted.
$podroot = ".";		# assume the pods we want are here
$htmldir = "";		# nothing for now...
$htmlroot = "/";	# default value
$recurse = 0;		# default behavior
@splithead = ();	# don't split any files by default
@splititem = ();	# don't split any files by default
$splitpod = "";		# nothing for now.

$verbose = 0; 	    	# whether or not to print debugging info

$pod2html = "pod/pod2html";

usage("") unless @ARGV;

# parse the command-line
$result = GetOptions( qw(
	help
	podpath=s
	podroot=s
	htmldir=s
	htmlroot=s
	libpods=s
	recurse!
	splithead=s
	splititem=s
	splitpod=s
	verbose
));
usage("invalid parameters") unless $result;
parse_command_line();


# set these variables to appropriate values if the user didn't specify
#  values for them.
$htmldir = "$htmlroot/html" unless $htmldir;
$splitpod = "$podroot/pod" unless $splitpod;


# make sure that the destination directory exists
(mkdir($htmldir, 0755) ||
	die "$0: cannot make directory $htmldir: $!\n") if ! -d $htmldir;


# the following array will eventually contain files that are to be
# ignored in the conversion process.  these are files that have been
# process by splititem or splithead and should not be converted as a
# result.
@ignore = ();


# split pods.  its important to do this before convert ANY pods because
#  it may effect some of the links
@splitdirs = ();    # files in these directories won't get an index
split_on_head($podroot, $htmldir, \@splitdirs, \@ignore, @splithead);
split_on_item($podroot,           \@splitdirs, \@ignore, @splititem);


# convert the pod pages found in @poddirs
#warn "converting files\n" if $verbose;
#warn "\@ignore\t= @ignore\n" if $verbose;
foreach $dir (@podpath) {
    installdir($dir, $recurse, $podroot, \@splitdirs, \@ignore);
}


# now go through and create master indices for each pod we split
foreach $dir (@splititem) {
    print "creating index $htmldir/$dir.html\n" if $verbose;
    create_index("$htmldir/$dir.html", "$htmldir/$dir");
}

foreach $dir (@splithead) {
    $dir .= ".pod" unless $dir =~ /(\.pod|\.pm)$/;
    # let pod2html create the file
    runpod2html($dir, 1);

    # now go through and truncate after the index
    $dir =~ /^(.*?)(\.pod|\.pm)?$/sm;
    $file = "$htmldir/$1";
    print "creating index $file.html\n" if $verbose;

    # read in everything until what would have been the first =head
    # directive, patching the index as we go.
    open(H, "<$file.html") ||
	die "$0: error opening $file.html for input: $!\n";
    $/ = "";
    @data = ();
    while (<H>) {
	last if /NAME=/;
	s,HREF="#(.*)">,HREF="$file/$1.html">,g;
	push @data, $_;
    } 
    close(H);

    # now rewrite the file 
    open(H, ">$file.html") ||
	die "$0: error opening $file.html for output: $!\n";
    print H "@data\n";
    close(H);
}

##############################################################################


sub usage {
    warn "$0: @_\n" if @_;
    die $usage;
}


sub parse_command_line {
    usage() if defined $opt_help;
    $opt_help = ""; 	    	    # make -w shut up

    # list of directories
    @podpath   = split(":", $opt_podpath) if defined $opt_podpath;

    # lists of files
    @splithead = split(",", $opt_splithead) if defined $opt_splithead;
    @splititem = split(",", $opt_splititem) if defined $opt_splititem;
    @libpods   = split(",", $opt_libpods) if defined $opt_libpods;

    $htmldir  = $opt_htmldir	    if defined $opt_htmldir;
    $htmlroot = $opt_htmlroot	    if defined $opt_htmlroot;
    $podroot  = $opt_podroot	    if defined $opt_podroot;
    $splitpod = $opt_splitpod	    if defined $opt_splitpod;

    $recurse  = $opt_recurse	    if defined $opt_recurse;
    $verbose  = $opt_verbose	    if defined $opt_verbose;
}


sub absolute_path {
    my($cwd, $path) = @_;
	return "$cwd/$path" unless $path =~ m:/:;
    # add cwd if path is not already an absolute path
    $path = "$cwd/$path" if (substr($path,0,1) ne '/');
    return $path;
}


sub create_index {
    my($html, $dir) = @_;
    my(@files, @filedata, @index, $file);
    my($lcp1,$lcp2);


    # get the list of .html files in this directory
    opendir(DIR, $dir) ||
	die "$0: error opening directory $dir for reading: $!\n";
    @files = sort(grep(/\.html?$/, readdir(DIR)));
    closedir(DIR);

    open(HTML, ">$html") ||
	die "$0: error opening $html for output: $!\n";

    # for each .html file in the directory, extract the index
    #	embedded in the file and throw it into the big index.
    print HTML "<DL COMPACT>\n";
    foreach $file (@files) {
	$/ = "";

	open(IN, "<$dir/$file") ||
	    die "$0: error opening $dir/$file for input: $!\n";
	@filedata = <IN>;
	close(IN);

	# pull out the NAME section
	($name) = grep(/NAME=/, @filedata);
	($lcp1,$lcp2) = ($name =~ m,/H1>\s(\S+)\s[\s-]*(.*?)\s*$,sm);
	if (defined $lcp1 and $lcp1 eq '<P>') { # Uninteresting.  Try again.
	   ($lcp1,$lcp2) = ($name =~ m,/H1>\s<P>\s(\S+)\s[\s-]*(.*?)\s*$,sm);
	}
	print HTML qq(<A HREF="$dir/$file">);
	print HTML "<DT>$lcp1</A><DD>$lcp2\n" if defined $lcp1;
#	print HTML qq(<A HREF="$dir/$file">$lcp1</A><BR>\n") if defined $lcp1;

	next;

	@index = grep(/<!-- INDEX BEGIN -->.*<!-- INDEX END -->/s,
		    @filedata);
	for (@index) {
	    s/<!-- INDEX BEGIN -->(\s*<!--)(.*)(-->\s*)<!-- INDEX END -->/$lcp2/s;
	    s,#,$dir/$file#,g;
	    # print HTML "$_\n";
	    print HTML "$_\n<P><HR><P>\n";
	}
    }
    print HTML "</DL>\n";

    close(HTML);
}


sub split_on_head {
    my($podroot, $htmldir, $splitdirs, $ignore, @splithead) = @_;
    my($pod, $dirname, $filename);

    # split the files specified in @splithead on =head[1-6] pod directives
    print "splitting files by head.\n" if $verbose && $#splithead >= 0;
    foreach $pod (@splithead) {
	# figure out the directory name and filename
	$pod      =~ s,^([^/]*)$,/$1,;
	$pod      =~ m,(.*?)/(.*?)(\.pod)?$,;
	$dirname  = $1;
	$filename = "$2.pod";

	# since we are splitting this file it shouldn't be converted.
	push(@$ignore, "$podroot/$dirname/$filename");

	# split the pod
	splitpod("$podroot/$dirname/$filename", "$podroot/$dirname", $htmldir,
	    $splitdirs);
    }
}


sub split_on_item {
    my($podroot, $splitdirs, $ignore, @splititem) = @_;
    my($pwd, $dirname, $filename);

    print "splitting files by item.\n" if $verbose && $#splititem >= 0;
    $pwd = getcwd();
	my $splitter = absolute_path($pwd, "$splitpod/splitpod");
    foreach $pod (@splititem) {
	# figure out the directory to split into
	$pod      =~ s,^([^/]*)$,/$1,;
	$pod      =~ m,(.*?)/(.*?)(\.pod)?$,;
	$dirname  = "$1/$2";
	$filename = "$2.pod";

	# since we are splitting this file it shouldn't be converted.
	push(@$ignore, "$podroot/$dirname.pod");

	# split the pod
	push(@$splitdirs, "$podroot/$dirname");
	if (! -d "$podroot/$dirname") {
	    mkdir("$podroot/$dirname", 0755) ||
		    die "$0: error creating directory $podroot/$dirname: $!\n";
	}
	chdir("$podroot/$dirname") ||
	    die "$0: error changing to directory $podroot/$dirname: $!\n";
	die "$splitter not found. Use '-splitpod dir' option.\n"
	    unless -f $splitter;
	system("perl", $splitter, "../$filename") &&
	    warn "$0: error running '$splitter ../$filename'"
		 ." from $podroot/$dirname";
    }
    chdir($pwd);
}


#
# splitpod - splits a .pod file into several smaller .pod files
#  where a new file is started each time a =head[1-6] pod directive
#  is encountered in the input file.
#
sub splitpod {
    my($pod, $poddir, $htmldir, $splitdirs) = @_;
    my(@poddata, @filedata, @heads);
    my($file, $i, $j, $prevsec, $section, $nextsec);

    print "splitting $pod\n" if $verbose;

    # read the file in paragraphs
    $/ = "";
    open(SPLITIN, "<$pod") ||
	die "$0: error opening $pod for input: $!\n";
    @filedata = <SPLITIN>;
    close(SPLITIN) ||
	die "$0: error closing $pod: $!\n";

    # restore the file internally by =head[1-6] sections
    @poddata = ();
    for ($i = 0, $j = -1; $i <= $#filedata; $i++) {
	$j++ if ($filedata[$i] =~ /^\s*=head[1-6]/);
	if ($j >= 0) { 
	    $poddata[$j]  = "" unless defined $poddata[$j];
	    $poddata[$j] .= "\n$filedata[$i]" if $j >= 0;
	}
    }

    # create list of =head[1-6] sections so that we can rewrite
    #  L<> links as necessary.
    %heads = ();
    foreach $i (0..$#poddata) {
	$heads{htmlize($1)} = 1 if $poddata[$i] =~ /=head[1-6]\s+(.*)/;
    }

    # create a directory of a similar name and store all the
    #  files in there
    $pod =~ s,.*/(.*),$1,;	# get the last part of the name
    $dir = $pod;
    $dir =~ s/\.pod//g;
    push(@$splitdirs, "$poddir/$dir");
    mkdir("$poddir/$dir", 0755) ||
	die "$0: could not create directory $poddir/$dir: $!\n"
	unless -d "$poddir/$dir";

    $poddata[0] =~ /^\s*=head[1-6]\s+(.*)/;
    $section    = "";
    $nextsec    = $1;

    # for each section of the file create a separate pod file
    for ($i = 0; $i <= $#poddata; $i++) {
	# determine the "prev" and "next" links
	$prevsec = $section;
	$section = $nextsec;
	if ($i < $#poddata) {
	    $poddata[$i+1] =~ /^\s*=head[1-6]\s+(.*)/;
	    $nextsec       = $1;
	} else {
	    $nextsec = "";
	}

	# determine an appropriate filename (this must correspond with
	#  what pod2html will try and guess)
	# $poddata[$i] =~ /^\s*=head[1-6]\s+(.*)/;
	$file = "$dir/" . htmlize($section) . ".pod";

	# create the new .pod file
	print "\tcreating $poddir/$file\n" if $verbose;
	open(SPLITOUT, ">$poddir/$file") ||
	    die "$0: error opening $poddir/$file for output: $!\n";
	$poddata[$i] =~ s,L<([^<>]*)>,
			    defined $heads{htmlize($1)} ? "L<$dir/$1>" : "L<$1>"
			 ,ge;
	print SPLITOUT $poddata[$i]."\n\n";
	print SPLITOUT "=over 4\n\n";
	print SPLITOUT "=item *\n\nBack to L<$dir/\"$prevsec\">\n\n" if $prevsec;
	print SPLITOUT "=item *\n\nForward to L<$dir/\"$nextsec\">\n\n" if $nextsec;
	print SPLITOUT "=item *\n\nUp to L<$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 { "$dir/$_" }
	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,
	"--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, @_) }
Commit	Line	Data
90248788	1	#!./perl -w
	2
	3	# This file should really be a extracted from a .PL
54310121	4
3e3baf6d	5	use lib 'lib'; # use source library if present
3e3baf6d	6
54310121	7	use Config; # for config options in the makefile
	8	use Getopt::Long; # for command-line parsing
	9	use Cwd;
	10	use Pod::Html;
	11
	12	umask 022;
	13
	14	=head1 NAME
	15
	16	installhtml - converts a collection of POD pages to HTML format.
	17
	18	=head1 SYNOPSIS
	19
	20	installhtml [--help] [--podpath=<name>:...:<name>] [--podroot=<name>]
	21	[--htmldir=<name>] [--htmlroot=<name>] [--norecurse] [--recurse]
	22	[--splithead=<name>,...,<name>] [--splititem=<name>,...,<name>]
	23	[--libpods=<name>,...,<name>] [--verbose]
	24
	25	=head1 DESCRIPTION
	26
	27	I<installhtml> converts a collection of POD pages to a corresponding
	28	collection of HTML pages. This is primarily used to convert the pod
	29	pages found in the perl distribution.
	30
	31	=head1 OPTIONS
	32
	33	=over 4
	34
	35	=item B<--help> help
	36
	37	Displays the usage.
	38
3e3baf6d	39	=item B<--podroot> POD search path base directory
	40
	41	The base directory to search for all .pod and .pm files to be converted.
	42	Default is current directory.
	43
54310121	44	=item B<--podpath> POD search path
54310121	45
e05c04ea	46	The list of directories to search for .pod and .pm files to be converted.
54310121	47	Default is `podroot/.'.
54310121	48
3e3baf6d	49	=item B<--recurse> recurse on subdirectories
54310121	50
3e3baf6d	51	Whether or not to convert all .pm and .pod files found in subdirectories
3e3baf6d	52	too. Default is to not recurse.
54310121	53
	54	=item B<--htmldir> HTML destination directory
	55
	56	The base directory which all HTML files will be written to. This should
	57	be a path relative to the filesystem, not the resulting URL.
	58
	59	=item B<--htmlroot> URL base directory
	60
	61	The base directory which all resulting HTML files will be visible at in
	62	a URL. The default is `/'.
	63
54310121	64	=item B<--splithead> POD files to split on =head directive
54310121	65
af19f77d	66	Comma-separated list of pod files to split by the =head directive. The
3e3baf6d	67	.pod suffix is optional. These files should have names specified
3e3baf6d	68	relative to podroot.
54310121	69
	70	=item B<--splititem> POD files to split on =item directive
	71
af19f77d	72	Comma-separated list of all pod files to split by the =item directive.
3e3baf6d	73	The .pod suffix is optional. I<installhtml> does not do the actual
	74	split, rather it invokes I<splitpod> to do the dirty work. As with
	75	--splithead, these files should have names specified relative to podroot.
	76
	77	=item B<--splitpod> Directory containing the splitpod program
	78
	79	The directory containing the splitpod program. The default is `podroot/pod'.
54310121	80
	81	=item B<--libpods> library PODs for LE<lt>E<gt> links
	82
af19f77d	83	Comma-separated list of "library" pod files. This is the same list that
54310121	84	will be passed to pod2html when any pod is converted.
	85
	86	=item B<--verbose> verbose output
	87
	88	Self-explanatory.
	89
	90	=back
	91
	92	=head1 EXAMPLE
	93
	94	The following command-line is an example of the one we use to convert
	95	perl documentation:
	96
	97	./installhtml --podpath=lib:ext:pod:vms \
84902520	98	--podroot=/usr/src/perl \
	99	--htmldir=/perl/nmanual \
	100	--htmlroot=/perl/nmanual \
	101	--splithead=pod/perlipc \
	102	--splititem=pod/perlfunc \
af19f77d	103	--libpods=perlfunc,perlguts,perlvar,perlrun,perlop \
84902520	104	--recurse \
84902520	105	--verbose
54310121	106
	107	=head1 AUTHOR
	108
	109	Chris Hall E<lt>hallc@cs.colorado.eduE<gt>
	110
	111	=head1 TODO
	112
	113	=cut
	114
	115	$usage =<<END_OF_USAGE;
	116	Usage: $0 --help --podpath=<name>:...:<name> --podroot=<name>
	117	--htmldir=<name> --htmlroot=<name> --norecurse --recurse
	118	--splithead=<name>,...,<name> --splititem=<name>,...,<name>
	119	--libpods=<name>,...,<name> --verbose
	120
	121	--help - this message
	122	--podpath - colon-separated list of directories containing .pod and
	123	.pm files to be converted (. by default).
	124	--podroot - filesystem base directory from which all relative paths in
	125	podpath stem (default is .).
	126	--htmldir - directory to store resulting html files in relative
	127	to the filesystem (\$podroot/html by default).
	128	--htmlroot - http-server base directory from which all relative paths
	129	in podpath stem (default is /).
	130	--libpods - comma-separated list of files to search for =item pod
	131	directives in as targets of C<> and implicit links (empty
	132	by default).
	133	--norecurse - don't recurse on those subdirectories listed in podpath.
	134	(default behavior).
	135	--recurse - recurse on those subdirectories listed in podpath
	136	--splithead - comma-separated list of .pod or .pm files to split. will
e05c04ea	137	split each file into several smaller files at every occurrence
54310121	138	of a pod =head[1-6] directive.
	139	--splititem - comma-separated list of .pod or .pm files to split using
	140	splitpod.
3e3baf6d	141	--splitpod - directory where the program splitpod can be found
3e3baf6d	142	(\$podroot/pod by default).
54310121	143	--verbose - self-explanatory.
	144
	145	END_OF_USAGE
	146
	147	@libpods = ();
	148	@podpath = ( "." ); # colon-separated list of directories containing .pod
	149	# and .pm files to be converted.
	150	$podroot = "."; # assume the pods we want are here
	151	$htmldir = ""; # nothing for now...
	152	$htmlroot = "/"; # default value
	153	$recurse = 0; # default behavior
	154	@splithead = (); # don't split any files by default
	155	@splititem = (); # don't split any files by default
	156	$splitpod = ""; # nothing for now.
	157
	158	$verbose = 0; # whether or not to print debugging info
	159
	160	$pod2html = "pod/pod2html";
	161
3e3baf6d	162	usage("") unless @ARGV;
54310121	163
	164	# parse the command-line
	165	$result = GetOptions( qw(
	166	help
	167	podpath=s
	168	podroot=s
	169	htmldir=s
	170	htmlroot=s
	171	libpods=s
	172	recurse!
	173	splithead=s
	174	splititem=s
	175	splitpod=s
	176	verbose
	177	));
	178	usage("invalid parameters") unless $result;
	179	parse_command_line();
	180
	181
	182	# set these variables to appropriate values if the user didn't specify
	183	# values for them.
	184	$htmldir = "$htmlroot/html" unless $htmldir;
	185	$splitpod = "$podroot/pod" unless $splitpod;
	186
	187
	188	# make sure that the destination directory exists
	189	(mkdir($htmldir, 0755) \|\|
	190	die "$0: cannot make directory $htmldir: $!\n") if ! -d $htmldir;
	191
	192
	193	# the following array will eventually contain files that are to be
	194	# ignored in the conversion process. these are files that have been
	195	# process by splititem or splithead and should not be converted as a
	196	# result.
	197	@ignore = ();
	198
	199
	200	# split pods. its important to do this before convert ANY pods because
	201	# it may effect some of the links
	202	@splitdirs = (); # files in these directories won't get an index
	203	split_on_head($podroot, $htmldir, \@splitdirs, \@ignore, @splithead);
3e3baf6d	204	split_on_item($podroot, \@splitdirs, \@ignore, @splititem);
54310121	205
	206
	207	# convert the pod pages found in @poddirs
	208	#warn "converting files\n" if $verbose;
	209	#warn "\@ignore\t= @ignore\n" if $verbose;
	210	foreach $dir (@podpath) {
	211	installdir($dir, $recurse, $podroot, \@splitdirs, \@ignore);
	212	}
	213
	214
	215	# now go through and create master indices for each pod we split
	216	foreach $dir (@splititem) {
	217	print "creating index $htmldir/$dir.html\n" if $verbose;
	218	create_index("$htmldir/$dir.html", "$htmldir/$dir");
	219	}
	220
	221	foreach $dir (@splithead) {
	222	$dir .= ".pod" unless $dir =~ /(\.pod\|\.pm)$/;
	223	# let pod2html create the file
	224	runpod2html($dir, 1);
	225
	226	# now go through and truncate after the index
	227	$dir =~ /^(.*?)(\.pod\|\.pm)?$/sm;
	228	$file = "$htmldir/$1";
	229	print "creating index $file.html\n" if $verbose;
	230
	231	# read in everything until what would have been the first =head
	232	# directive, patching the index as we go.
	233	open(H, "<$file.html") \|\|
	234	die "$0: error opening $file.html for input: $!\n";
	235	$/ = "";
	236	@data = ();
	237	while (<H>) {
	238	last if /NAME=/;
	239	s,HREF="#(.*)">,HREF="$file/$1.html">,g;
	240	push @data, $_;
	241	}
	242	close(H);
	243
	244	# now rewrite the file
	245	open(H, ">$file.html") \|\|
	246	die "$0: error opening $file.html for output: $!\n";
	247	print H "@data\n";
	248	close(H);
	249	}
	250
	251	##############################################################################
	252
	253
	254	sub usage {
	255	warn "$0: @_\n" if @_;
	256	die $usage;
	257	}
	258
	259
	260	sub parse_command_line {
	261	usage() if defined $opt_help;
	262	$opt_help = ""; # make -w shut up
	263
	264	# list of directories
	265	@podpath = split(":", $opt_podpath) if defined $opt_podpath;
	266
	267	# lists of files
	268	@splithead = split(",", $opt_splithead) if defined $opt_splithead;
269	@splititem = split(",", $opt_splititem) if defined $opt_splititem;
270	@libpods = split(",", $opt_libpods) if defined $opt_libpods;
271
272	$htmldir = $opt_htmldir if defined $opt_htmldir;
273	$htmlroot = $opt_htmlroot if defined $opt_htmlroot;
274	$podroot = $opt_podroot if defined $opt_podroot;
275	$splitpod = $opt_splitpod if defined $opt_splitpod;
276
277	$recurse = $opt_recurse if defined $opt_recurse;
278	$verbose = $opt_verbose if defined $opt_verbose;
279	}
280
281
3e3baf6d	282	sub absolute_path {
	283	my($cwd, $path) = @_;
	284	return "$cwd/$path" unless $path =~ m:/:;
	285	# add cwd if path is not already an absolute path
	286	$path = "$cwd/$path" if (substr($path,0,1) ne '/');
	287	return $path;
	288	}
	289
	290
54310121	291	sub create_index {
	292	my($html, $dir) = @_;
	293	my(@files, @filedata, @index, $file);
af19f77d	294	my($lcp1,$lcp2);
af19f77d	295
54310121	296
	297	# get the list of .html files in this directory
	298	opendir(DIR, $dir) \|\|
	299	die "$0: error opening directory $dir for reading: $!\n";
39e571d4	300	@files = sort(grep(/\.html?$/, readdir(DIR)));
54310121	301	closedir(DIR);
	302
	303	open(HTML, ">$html") \|\|
	304	die "$0: error opening $html for output: $!\n";
	305
	306	# for each .html file in the directory, extract the index
	307	# embedded in the file and throw it into the big index.
	308	print HTML "<DL COMPACT>\n";
	309	foreach $file (@files) {
	310	$/ = "";
	311
	312	open(IN, "<$dir/$file") \|\|
	313	die "$0: error opening $dir/$file for input: $!\n";
	314	@filedata = <IN>;
	315	close(IN);
	316
	317	# pull out the NAME section
	318	($name) = grep(/NAME=/, @filedata);
af19f77d	319	($lcp1,$lcp2) = ($name =~ m,/H1>\s(\S+)\s[\s-](.?)\s*$,sm);
	320	if (defined $lcp1 and $lcp1 eq '<P>') { # Uninteresting. Try again.
	321	($lcp1,$lcp2) = ($name =~ m,/H1>\s<P>\s(\S+)\s[\s-](.?)\s*$,sm);
	322	}
54310121	323	print HTML qq(<A HREF="$dir/$file">);
af19f77d	324	print HTML "<DT>$lcp1</A><DD>$lcp2\n" if defined $lcp1;
af19f77d	325	# print HTML qq(<A HREF="$dir/$file">$lcp1</A><BR>\n") if defined $lcp1;
54310121	326
	327	next;
	328
	329	@index = grep(/<!-- INDEX BEGIN -->.*<!-- INDEX END -->/s,
	330	@filedata);
	331	for (@index) {
af19f77d	332	s/<!-- INDEX BEGIN -->(\s<!--)(.)(-->\s*)<!-- INDEX END -->/$lcp2/s;
54310121	333	s,#,$dir/$file#,g;
	334	# print HTML "$_\n";
	335	print HTML "$_\n<P><HR><P>\n";
	336	}
	337	}
	338	print HTML "</DL>\n";
	339
	340	close(HTML);
	341	}
	342
	343
	344	sub split_on_head {
	345	my($podroot, $htmldir, $splitdirs, $ignore, @splithead) = @_;
	346	my($pod, $dirname, $filename);
	347
	348	# split the files specified in @splithead on =head[1-6] pod directives
	349	print "splitting files by head.\n" if $verbose && $#splithead >= 0;
	350	foreach $pod (@splithead) {
	351	# figure out the directory name and filename
	352	$pod =~ s,^([^/]*)$,/$1,;
	353	$pod =~ m,(.?)/(.?)(\.pod)?$,;
	354	$dirname = $1;
	355	$filename = "$2.pod";
	356
	357	# since we are splitting this file it shouldn't be converted.
	358	push(@$ignore, "$podroot/$dirname/$filename");
	359
	360	# split the pod
	361	splitpod("$podroot/$dirname/$filename", "$podroot/$dirname", $htmldir,
	362	$splitdirs);
	363	}
	364	}
	365
	366
	367	sub split_on_item {
	368	my($podroot, $splitdirs, $ignore, @splititem) = @_;
	369	my($pwd, $dirname, $filename);
	370
	371	print "splitting files by item.\n" if $verbose && $#splititem >= 0;
	372	$pwd = getcwd();
3e3baf6d	373	my $splitter = absolute_path($pwd, "$splitpod/splitpod");
54310121	374	foreach $pod (@splititem) {
	375	# figure out the directory to split into
	376	$pod =~ s,^([^/]*)$,/$1,;
	377	$pod =~ m,(.?)/(.?)(\.pod)?$,;
	378	$dirname = "$1/$2";
	379	$filename = "$2.pod";
	380
	381	# since we are splitting this file it shouldn't be converted.
	382	push(@$ignore, "$podroot/$dirname.pod");
	383
	384	# split the pod
	385	push(@$splitdirs, "$podroot/$dirname");
	386	if (! -d "$podroot/$dirname") {
	387	mkdir("$podroot/$dirname", 0755) \|\|
	388	die "$0: error creating directory $podroot/$dirname: $!\n";
	389	}
	390	chdir("$podroot/$dirname") \|\|
	391	die "$0: error changing to directory $podroot/$dirname: $!\n";
3e3baf6d	392	die "$splitter not found. Use '-splitpod dir' option.\n"
	393	unless -f $splitter;
	394	system("perl", $splitter, "../$filename") &&
	395	warn "$0: error running '$splitter ../$filename'"
e05c04ea	396	." from $podroot/$dirname";
54310121	397	}
	398	chdir($pwd);
	399	}
	400
	401
	402	#
	403	# splitpod - splits a .pod file into several smaller .pod files
	404	# where a new file is started each time a =head[1-6] pod directive
	405	# is encountered in the input file.
	406	#
	407	sub splitpod {
	408	my($pod, $poddir, $htmldir, $splitdirs) = @_;
	409	my(@poddata, @filedata, @heads);
	410	my($file, $i, $j, $prevsec, $section, $nextsec);
	411
	412	print "splitting $pod\n" if $verbose;
	413
	414	# read the file in paragraphs
	415	$/ = "";
	416	open(SPLITIN, "<$pod") \|\|
	417	die "$0: error opening $pod for input: $!\n";
	418	@filedata = <SPLITIN>;
	419	close(SPLITIN) \|\|
	420	die "$0: error closing $pod: $!\n";
	421
	422	# restore the file internally by =head[1-6] sections
	423	@poddata = ();
	424	for ($i = 0, $j = -1; $i <= $#filedata; $i++) {
	425	$j++ if ($filedata[$i] =~ /^\s*=head[1-6]/);
	426	if ($j >= 0) {
	427	$poddata[$j] = "" unless defined $poddata[$j];
	428	$poddata[$j] .= "\n$filedata[$i]" if $j >= 0;
	429	}
	430	}
	431
	432	# create list of =head[1-6] sections so that we can rewrite
	433	# L<> links as necessary.
	434	%heads = ();
	435	foreach $i (0..$#poddata) {
	436	$heads{htmlize($1)} = 1 if $poddata[$i] =~ /=head[1-6]\s+(.*)/;
	437	}
	438
	439	# create a directory of a similar name and store all the
	440	# files in there
	441	$pod =~ s,./(.),$1,; # get the last part of the name
	442	$dir = $pod;
	443	$dir =~ s/\.pod//g;
	444	push(@$splitdirs, "$poddir/$dir");
	445	mkdir("$poddir/$dir", 0755) \|\|
	446	die "$0: could not create directory $poddir/$dir: $!\n"
	447	unless -d "$poddir/$dir";
	448
	449	$poddata[0] =~ /^\s=head[1-6]\s+(.)/;
	450	$section = "";
	451	$nextsec = $1;
	452
	453	# for each section of the file create a separate pod file
	454	for ($i = 0; $i <= $#poddata; $i++) {
	455	# determine the "prev" and "next" links
	456	$prevsec = $section;
	457	$section = $nextsec;
	458	if ($i < $#poddata) {
	459	$poddata[$i+1] =~ /^\s=head[1-6]\s+(.)/;
	460	$nextsec = $1;
461	} else {
462	$nextsec = "";
463	}
464
465	# determine an appropriate filename (this must correspond with
466	# what pod2html will try and guess)
467	# $poddata[$i] =~ /^\s=head[1-6]\s+(.)/;
468	$file = "$dir/" . htmlize($section) . ".pod";
469
470	# create the new .pod file
471	print "\tcreating $poddir/$file\n" if $verbose;
472	open(SPLITOUT, ">$poddir/$file") \|\|
473	die "$0: error opening $poddir/$file for output: $!\n";
474	$poddata[$i] =~ s,L<([^<>]*)>,
475	defined $heads{htmlize($1)} ? "L<$dir/$1>" : "L<$1>"
476	,ge;
477	print SPLITOUT $poddata[$i]."\n\n";
478	print SPLITOUT "=over 4\n\n";
479	print SPLITOUT "=item *\n\nBack to L<$dir/\"$prevsec\">\n\n" if $prevsec;
480	print SPLITOUT "=item *\n\nForward to L<$dir/\"$nextsec\">\n\n" if $nextsec;
481	print SPLITOUT "=item *\n\nUp to L<$dir>\n\n";
482	print SPLITOUT "=back\n\n";
483	close(SPLITOUT) \|\|
484	die "$0: error closing $poddir/$file: $!\n";
485	}
486	}
487
488
489	#
490	# installdir - takes care of converting the .pod and .pm files in the
491	# current directory to .html files and then installing those.
492	#
493	sub installdir {
494	my($dir, $recurse, $podroot, $splitdirs, $ignore) = @_;
495	my(@dirlist, @podlist, @pmlist, $doindex);
496
497	@dirlist = (); # directories to recurse on
498	@podlist = (); # .pod files to install
499	@pmlist = (); # .pm files to install
500
501	# should files in this directory get an index?
502	$doindex = (grep($_ eq "$podroot/$dir", @$splitdirs) ? 0 : 1);
503
504	opendir(DIR, "$podroot/$dir")
505	\|\| die "$0: error opening directory $podroot/$dir: $!\n";
506
507	# find the directories to recurse on
508	@dirlist = map { "$dir/$_" }
509	grep(-d "$podroot/$dir/$_" && !/^\.{1,2}/, readdir(DIR)) if $recurse;
510	rewinddir(DIR);
511
512	# find all the .pod files within the directory
513	@podlist = map { /^(.*)\.pod$/; "$dir/$1" }
514	grep(! -d "$podroot/$dir/$_" && /\.pod$/, readdir(DIR));
515	rewinddir(DIR);
516
517	# find all the .pm files within the directory
518	@pmlist = map { /^(.*)\.pm$/; "$dir/$1" }
519	grep(! -d "$podroot/$dir/$_" && /\.pm$/, readdir(DIR));
520
521	closedir(DIR);
522
523	# recurse on all subdirectories we kept track of
524	foreach $dir (@dirlist) {
525	installdir($dir, $recurse, $podroot, $splitdirs, $ignore);
526	}
527
528	# install all the pods we found
529	foreach $pod (@podlist) {
530	# check if we should ignore it.
531	next if grep($_ eq "$podroot/$pod.pod", @$ignore);
532
533	# check if a .pm files exists too
534	if (grep($_ eq "$pod.pm", @pmlist)) {
535	print "$0: Warning both `$podroot/$pod.pod' and "
536	. "`$podroot/$pod.pm' exist, using pod\n";
537	push(@ignore, "$pod.pm");
538	}
539	runpod2html("$pod.pod", $doindex);
540	}
541
542	# install all the .pm files we found
543	foreach $pm (@pmlist) {
544	# check if we should ignore it.
545	next if grep($_ eq "$pm.pm", @ignore);
546
547	runpod2html("$pm.pm", $doindex);
548	}
549	}
550
551
552	#
553	# runpod2html - invokes pod2html to convert a .pod or .pm file to a .html
554	# file.
555	#
556	sub runpod2html {
557	my($pod, $doindex) = @_;
558	my($html, $i, $dir, @dirs);
559
560	$html = $pod;
561	$html =~ s/\.(pod\|pm)$/.html/g;
562
563	# make sure the destination directories exist
564	@dirs = split("/", $html);
565	$dir = "$htmldir/";
566	for ($i = 0; $i < $#dirs; $i++) {
567	if (! -d "$dir$dirs[$i]") {
568	mkdir("$dir$dirs[$i]", 0755) \|\|
569	die "$0: error creating directory $dir$dirs[$i]: $!\n";
570	}
571	$dir .= "$dirs[$i]/";
572	}
573
574	# invoke pod2html
575	print "$podroot/$pod => $htmldir/$html\n" if $verbose;
576	#system("./pod2html",
577	Pod::Html'pod2html(
578	#Pod::Html'pod2html($pod2html,
579	"--htmlroot=$htmlroot",
580	"--podpath=".join(":", @podpath),
581	"--podroot=$podroot", "--netscape",
582	($doindex ? "--index" : "--noindex"),
583	"--" . ($recurse ? "" : "no") . "recurse",
584	($#libpods >= 0) ? "--libpods=" . join(":", @libpods) : "",
585	"--infile=$podroot/$pod", "--outfile=$htmldir/$html");
586	die "$0: error running $pod2html: $!\n" if $?;
587	}
588
589	sub htmlize { htmlify(0, @_) }