3 # This file should really be a extracted from a .PL
5 use lib 'lib'; # use source library if present
7 use Config; # for config options in the makefile
8 use Getopt::Long; # for command-line parsing
16 installhtml - converts a collection of POD pages to HTML format.
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]
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.
39 =item B<--podroot> POD search path base directory
41 The base directory to search for all .pod and .pm files to be converted.
42 Default is current directory.
44 =item B<--podpath> POD search path
46 The list of directories to search for .pod and .pm files to be converted.
47 Default is `podroot/.'.
49 =item B<--recurse> recurse on subdirectories
51 Whether or not to convert all .pm and .pod files found in subdirectories
52 too. Default is to not recurse.
54 =item B<--htmldir> HTML destination directory
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.
59 =item B<--htmlroot> URL base directory
61 The base directory which all resulting HTML files will be visible at in
62 a URL. The default is `/'.
64 =item B<--splithead> POD files to split on =head directive
66 Colon-separated list of pod files to split by the =head directive. The
67 .pod suffix is optional. These files should have names specified
70 =item B<--splititem> POD files to split on =item directive
72 Colon-separated list of all pod files to split by the =item directive.
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.
77 =item B<--splitpod> Directory containing the splitpod program
79 The directory containing the splitpod program. The default is `podroot/pod'.
81 =item B<--libpods> library PODs for LE<lt>E<gt> links
83 Colon-separated list of "library" pod files. This is the same list that
84 will be passed to pod2html when any pod is converted.
86 =item B<--verbose> verbose output
94 The following command-line is an example of the one we use to convert
97 ./installhtml --podpath=lib:ext:pod:vms \
98 --podroot=/usr/src/perl \
99 --htmldir=/perl/nmanual \
100 --htmlroot=/perl/nmanual \
101 --splithead=pod/perlipc \
102 --splititem=pod/perlfunc \
103 --libpods=perlfunc:perlguts:perlvar:perlrun:perlop \
109 Chris Hall E<lt>hallc@cs.colorado.eduE<gt>
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
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
133 --norecurse - don't recurse on those subdirectories listed in podpath.
135 --recurse - recurse on those subdirectories listed in podpath
136 --splithead - comma-separated list of .pod or .pm files to split. will
137 split each file into several smaller files at every occurrence
138 of a pod =head[1-6] directive.
139 --splititem - comma-separated list of .pod or .pm files to split using
141 --splitpod - directory where the program splitpod can be found
142 (\$podroot/pod by default).
143 --verbose - self-explanatory.
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.
158 $verbose = 0; # whether or not to print debugging info
160 $pod2html = "pod/pod2html";
162 usage("") unless @ARGV;
164 # parse the command-line
165 $result = GetOptions( qw(
178 usage("invalid parameters") unless $result;
179 parse_command_line();
182 # set these variables to appropriate values if the user didn't specify
184 $htmldir = "$htmlroot/html" unless $htmldir;
185 $splitpod = "$podroot/pod" unless $splitpod;
188 # make sure that the destination directory exists
189 (mkdir($htmldir, 0755) ||
190 die "$0: cannot make directory $htmldir: $!\n") if ! -d $htmldir;
193 # the following array will eventually contain files that are to be
194 # ignored in the conversion process. these are files that have been
195 # process by splititem or splithead and should not be converted as a
200 # split pods. its important to do this before convert ANY pods because
201 # it may effect some of the links
202 @splitdirs = (); # files in these directories won't get an index
203 split_on_head($podroot, $htmldir, \@splitdirs, \@ignore, @splithead);
204 split_on_item($podroot, \@splitdirs, \@ignore, @splititem);
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);
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");
221 foreach $dir (@splithead) {
222 $dir .= ".pod" unless $dir =~ /(\.pod|\.pm)$/;
223 # let pod2html create the file
224 runpod2html($dir, 1);
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 $verbose;
231 # read in everything until what would have been the first =head
232 # directive, patching the index as we go.
233 open(H, "<$file.html") ||
234 die "$0: error opening $file.html for input: $!\n";
239 s,HREF="#(.*)">,HREF="$file/$1.html">,g;
244 # now rewrite the file
245 open(H, ">$file.html") ||
246 die "$0: error opening $file.html for output: $!\n";
251 ##############################################################################
255 warn "$0: @_\n" if @_;
260 sub parse_command_line {
261 usage() if defined $opt_help;
262 $opt_help = ""; # make -w shut up
264 # list of directories
265 @podpath = split(":", $opt_podpath) if defined $opt_podpath;
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;
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;
277 $recurse = $opt_recurse if defined $opt_recurse;
278 $verbose = $opt_verbose if defined $opt_verbose;
283 my($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 '/');
292 my($html, $dir) = @_;
293 my(@files, @filedata, @index, $file);
295 # get the list of .html files in this directory
296 opendir(DIR, $dir) ||
297 die "$0: error opening directory $dir for reading: $!\n";
298 @files = sort(grep(/\.html?$/, readdir(DIR)));
301 open(HTML, ">$html") ||
302 die "$0: error opening $html for output: $!\n";
304 # for each .html file in the directory, extract the index
305 # embedded in the file and throw it into the big index.
306 print HTML "<DL COMPACT>\n";
307 foreach $file (@files) {
310 open(IN, "<$dir/$file") ||
311 die "$0: error opening $dir/$file for input: $!\n";
315 # pull out the NAME section
316 ($name) = grep(/NAME=/, @filedata);
317 $name =~ m,/H1>\s(\S+)\s[\s-]*(.*?)\s*$,sm;
318 print HTML qq(<A HREF="$dir/$file">);
319 print HTML "<DT>$1</A><DD>$2\n" if defined $1;
320 # print HTML qq(<A HREF="$dir/$file">$1</A><BR>\n") if defined $1;
324 @index = grep(/<!-- INDEX BEGIN -->.*<!-- INDEX END -->/s,
327 s/<!-- INDEX BEGIN -->(\s*<!--)(.*)(-->\s*)<!-- INDEX END -->/$2/s;
330 print HTML "$_\n<P><HR><P>\n";
333 print HTML "</DL>\n";
340 my($podroot, $htmldir, $splitdirs, $ignore, @splithead) = @_;
341 my($pod, $dirname, $filename);
343 # split the files specified in @splithead on =head[1-6] pod directives
344 print "splitting files by head.\n" if $verbose && $#splithead >= 0;
345 foreach $pod (@splithead) {
346 # figure out the directory name and filename
347 $pod =~ s,^([^/]*)$,/$1,;
348 $pod =~ m,(.*?)/(.*?)(\.pod)?$,;
350 $filename = "$2.pod";
352 # since we are splitting this file it shouldn't be converted.
353 push(@$ignore, "$podroot/$dirname/$filename");
356 splitpod("$podroot/$dirname/$filename", "$podroot/$dirname", $htmldir,
363 my($podroot, $splitdirs, $ignore, @splititem) = @_;
364 my($pwd, $dirname, $filename);
366 print "splitting files by item.\n" if $verbose && $#splititem >= 0;
368 my $splitter = absolute_path($pwd, "$splitpod/splitpod");
369 foreach $pod (@splititem) {
370 # figure out the directory to split into
371 $pod =~ s,^([^/]*)$,/$1,;
372 $pod =~ m,(.*?)/(.*?)(\.pod)?$,;
374 $filename = "$2.pod";
376 # since we are splitting this file it shouldn't be converted.
377 push(@$ignore, "$podroot/$dirname.pod");
380 push(@$splitdirs, "$podroot/$dirname");
381 if (! -d "$podroot/$dirname") {
382 mkdir("$podroot/$dirname", 0755) ||
383 die "$0: error creating directory $podroot/$dirname: $!\n";
385 chdir("$podroot/$dirname") ||
386 die "$0: error changing to directory $podroot/$dirname: $!\n";
387 die "$splitter not found. Use '-splitpod dir' option.\n"
389 system("perl", $splitter, "../$filename") &&
390 warn "$0: error running '$splitter ../$filename'"
391 ." from $podroot/$dirname";
398 # splitpod - splits a .pod file into several smaller .pod files
399 # where a new file is started each time a =head[1-6] pod directive
400 # is encountered in the input file.
403 my($pod, $poddir, $htmldir, $splitdirs) = @_;
404 my(@poddata, @filedata, @heads);
405 my($file, $i, $j, $prevsec, $section, $nextsec);
407 print "splitting $pod\n" if $verbose;
409 # read the file in paragraphs
411 open(SPLITIN, "<$pod") ||
412 die "$0: error opening $pod for input: $!\n";
413 @filedata = <SPLITIN>;
415 die "$0: error closing $pod: $!\n";
417 # restore the file internally by =head[1-6] sections
419 for ($i = 0, $j = -1; $i <= $#filedata; $i++) {
420 $j++ if ($filedata[$i] =~ /^\s*=head[1-6]/);
422 $poddata[$j] = "" unless defined $poddata[$j];
423 $poddata[$j] .= "\n$filedata[$i]" if $j >= 0;
427 # create list of =head[1-6] sections so that we can rewrite
428 # L<> links as necessary.
430 foreach $i (0..$#poddata) {
431 $heads{htmlize($1)} = 1 if $poddata[$i] =~ /=head[1-6]\s+(.*)/;
434 # create a directory of a similar name and store all the
436 $pod =~ s,.*/(.*),$1,; # get the last part of the name
439 push(@$splitdirs, "$poddir/$dir");
440 mkdir("$poddir/$dir", 0755) ||
441 die "$0: could not create directory $poddir/$dir: $!\n"
442 unless -d "$poddir/$dir";
444 $poddata[0] =~ /^\s*=head[1-6]\s+(.*)/;
448 # for each section of the file create a separate pod file
449 for ($i = 0; $i <= $#poddata; $i++) {
450 # determine the "prev" and "next" links
453 if ($i < $#poddata) {
454 $poddata[$i+1] =~ /^\s*=head[1-6]\s+(.*)/;
460 # determine an appropriate filename (this must correspond with
461 # what pod2html will try and guess)
462 # $poddata[$i] =~ /^\s*=head[1-6]\s+(.*)/;
463 $file = "$dir/" . htmlize($section) . ".pod";
465 # create the new .pod file
466 print "\tcreating $poddir/$file\n" if $verbose;
467 open(SPLITOUT, ">$poddir/$file") ||
468 die "$0: error opening $poddir/$file for output: $!\n";
469 $poddata[$i] =~ s,L<([^<>]*)>,
470 defined $heads{htmlize($1)} ? "L<$dir/$1>" : "L<$1>"
472 print SPLITOUT $poddata[$i]."\n\n";
473 print SPLITOUT "=over 4\n\n";
474 print SPLITOUT "=item *\n\nBack to L<$dir/\"$prevsec\">\n\n" if $prevsec;
475 print SPLITOUT "=item *\n\nForward to L<$dir/\"$nextsec\">\n\n" if $nextsec;
476 print SPLITOUT "=item *\n\nUp to L<$dir>\n\n";
477 print SPLITOUT "=back\n\n";
479 die "$0: error closing $poddir/$file: $!\n";
485 # installdir - takes care of converting the .pod and .pm files in the
486 # current directory to .html files and then installing those.
489 my($dir, $recurse, $podroot, $splitdirs, $ignore) = @_;
490 my(@dirlist, @podlist, @pmlist, $doindex);
492 @dirlist = (); # directories to recurse on
493 @podlist = (); # .pod files to install
494 @pmlist = (); # .pm files to install
496 # should files in this directory get an index?
497 $doindex = (grep($_ eq "$podroot/$dir", @$splitdirs) ? 0 : 1);
499 opendir(DIR, "$podroot/$dir")
500 || die "$0: error opening directory $podroot/$dir: $!\n";
502 # find the directories to recurse on
503 @dirlist = map { "$dir/$_" }
504 grep(-d "$podroot/$dir/$_" && !/^\.{1,2}/, readdir(DIR)) if $recurse;
507 # find all the .pod files within the directory
508 @podlist = map { /^(.*)\.pod$/; "$dir/$1" }
509 grep(! -d "$podroot/$dir/$_" && /\.pod$/, readdir(DIR));
512 # find all the .pm files within the directory
513 @pmlist = map { /^(.*)\.pm$/; "$dir/$1" }
514 grep(! -d "$podroot/$dir/$_" && /\.pm$/, readdir(DIR));
518 # recurse on all subdirectories we kept track of
519 foreach $dir (@dirlist) {
520 installdir($dir, $recurse, $podroot, $splitdirs, $ignore);
523 # install all the pods we found
524 foreach $pod (@podlist) {
525 # check if we should ignore it.
526 next if grep($_ eq "$podroot/$pod.pod", @$ignore);
528 # check if a .pm files exists too
529 if (grep($_ eq "$pod.pm", @pmlist)) {
530 print "$0: Warning both `$podroot/$pod.pod' and "
531 . "`$podroot/$pod.pm' exist, using pod\n";
532 push(@ignore, "$pod.pm");
534 runpod2html("$pod.pod", $doindex);
537 # install all the .pm files we found
538 foreach $pm (@pmlist) {
539 # check if we should ignore it.
540 next if grep($_ eq "$pm.pm", @ignore);
542 runpod2html("$pm.pm", $doindex);
548 # runpod2html - invokes pod2html to convert a .pod or .pm file to a .html
552 my($pod, $doindex) = @_;
553 my($html, $i, $dir, @dirs);
556 $html =~ s/\.(pod|pm)$/.html/g;
558 # make sure the destination directories exist
559 @dirs = split("/", $html);
561 for ($i = 0; $i < $#dirs; $i++) {
562 if (! -d "$dir$dirs[$i]") {
563 mkdir("$dir$dirs[$i]", 0755) ||
564 die "$0: error creating directory $dir$dirs[$i]: $!\n";
566 $dir .= "$dirs[$i]/";
570 print "$podroot/$pod => $htmldir/$html\n" if $verbose;
571 #system("./pod2html",
573 #Pod::Html'pod2html($pod2html,
574 "--htmlroot=$htmlroot",
575 "--podpath=".join(":", @podpath),
576 "--podroot=$podroot", "--netscape",
577 ($doindex ? "--index" : "--noindex"),
578 "--" . ($recurse ? "" : "no") . "recurse",
579 ($#libpods >= 0) ? "--libpods=" . join(":", @libpods) : "",
580 "--infile=$podroot/$pod", "--outfile=$htmldir/$html");
581 die "$0: error running $pod2html: $!\n" if $?;
584 sub htmlize { htmlify(0, @_) }