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3d8876fc 1#!./perl -Ilib -w
90248788 2
53542a37 3# This file should really be extracted from a .PL file
54310121 4
3d8876fc 5use strict;
54310121 6use Config; # for config options in the makefile
cac3fadd 7use File::Spec;
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8use Getopt::Long; # for command-line parsing
9use Cwd;
776d31fe 10use Pod::Html 'anchorify';
54310121 11
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12=head1 NAME
13
14installhtml - converts a collection of POD pages to HTML format.
15
16=head1 SYNOPSIS
17
18 installhtml [--help] [--podpath=<name>:...:<name>] [--podroot=<name>]
19 [--htmldir=<name>] [--htmlroot=<name>] [--norecurse] [--recurse]
20 [--splithead=<name>,...,<name>] [--splititem=<name>,...,<name>]
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21 [--libpods=<name>,...,<name>] [--ignore=<name>,...,<name>]
22 [--verbose]
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23
24=head1 DESCRIPTION
25
26I<installhtml> converts a collection of POD pages to a corresponding
27collection of HTML pages. This is primarily used to convert the pod
28pages found in the perl distribution.
29
30=head1 OPTIONS
31
32=over 4
33
34=item B<--help> help
35
36Displays the usage.
37
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38=item B<--podroot> POD search path base directory
39
40The base directory to search for all .pod and .pm files to be converted.
41Default is current directory.
42
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43=item B<--podpath> POD search path
44
e05c04ea 45The list of directories to search for .pod and .pm files to be converted.
e1b7525f 46Default is 'podroot/.'.
54310121 47
3e3baf6d 48=item B<--recurse> recurse on subdirectories
54310121 49
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50Whether or not to convert all .pm and .pod files found in subdirectories
51too. Default is to not recurse.
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52
53=item B<--htmldir> HTML destination directory
54
55The base directory which all HTML files will be written to. This should
56be a path relative to the filesystem, not the resulting URL.
57
58=item B<--htmlroot> URL base directory
59
60The base directory which all resulting HTML files will be visible at in
e1b7525f 61a URL. The default is '/'.
54310121 62
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63=item B<--splithead> POD files to split on =head directive
64
af19f77d 65Comma-separated list of pod files to split by the =head directive. The
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66.pod suffix is optional. These files should have names specified
67relative to podroot.
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68
69=item B<--splititem> POD files to split on =item directive
70
af19f77d 71Comma-separated list of all pod files to split by the =item directive.
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72The .pod suffix is optional. I<installhtml> does not do the actual
73split, rather it invokes I<splitpod> to do the dirty work. As with
74--splithead, these files should have names specified relative to podroot.
75
76=item B<--splitpod> Directory containing the splitpod program
77
e1b7525f 78The directory containing the splitpod program. The default is 'podroot/pod'.
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79
80=item B<--libpods> library PODs for LE<lt>E<gt> links
81
af19f77d 82Comma-separated list of "library" pod files. This is the same list that
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83will be passed to pod2html when any pod is converted.
84
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85=item B<--ignore> files to be ignored
86
87Comma-separated of files that shouldn't be installed, given relative
88to podroot.
89
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90=item B<--verbose> verbose output
91
92Self-explanatory.
93
94=back
95
96=head1 EXAMPLE
97
98The following command-line is an example of the one we use to convert
99perl documentation:
100
101 ./installhtml --podpath=lib:ext:pod:vms \
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102 --podroot=/usr/src/perl \
103 --htmldir=/perl/nmanual \
104 --htmlroot=/perl/nmanual \
105 --splithead=pod/perlipc \
106 --splititem=pod/perlfunc \
af19f77d 107 --libpods=perlfunc,perlguts,perlvar,perlrun,perlop \
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108 --recurse \
109 --verbose
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110
111=head1 AUTHOR
112
113Chris Hall E<lt>hallc@cs.colorado.eduE<gt>
114
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115=cut
116
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117my $usage;
118
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119$usage =<<END_OF_USAGE;
120Usage: $0 --help --podpath=<name>:...:<name> --podroot=<name>
121 --htmldir=<name> --htmlroot=<name> --norecurse --recurse
122 --splithead=<name>,...,<name> --splititem=<name>,...,<name>
47ec63d0 123 --libpods=<name>,...,<name> --ignore=<name>,...,<name> --verbose
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124
125 --help - this message
126 --podpath - colon-separated list of directories containing .pod and
127 .pm files to be converted (. by default).
128 --podroot - filesystem base directory from which all relative paths in
129 podpath stem (default is .).
130 --htmldir - directory to store resulting html files in relative
47ec63d0 131 to the filesystem (\$podroot/html by default).
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132 --htmlroot - http-server base directory from which all relative paths
133 in podpath stem (default is /).
134 --libpods - comma-separated list of files to search for =item pod
135 directives in as targets of C<> and implicit links (empty
136 by default).
137 --norecurse - don't recurse on those subdirectories listed in podpath.
138 (default behavior).
139 --recurse - recurse on those subdirectories listed in podpath
140 --splithead - comma-separated list of .pod or .pm files to split. will
e05c04ea 141 split each file into several smaller files at every occurrence
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142 of a pod =head[1-6] directive.
143 --splititem - comma-separated list of .pod or .pm files to split using
144 splitpod.
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145 --splitpod - directory where the program splitpod can be found
146 (\$podroot/pod by default).
47ec63d0 147 --ignore - comma-separated list of files that shouldn't be installed.
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148 --verbose - self-explanatory.
149
150END_OF_USAGE
151
3d8876fc 152my (@libpods, @podpath, $podroot, $htmldir, $htmlroot, $recurse, @splithead,
47ec63d0 153 @splititem, $splitpod, $verbose, $pod2html, @ignore);
3d8876fc 154
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155@libpods = ();
156@podpath = ( "." ); # colon-separated list of directories containing .pod
157 # and .pm files to be converted.
158$podroot = "."; # assume the pods we want are here
159$htmldir = ""; # nothing for now...
160$htmlroot = "/"; # default value
161$recurse = 0; # default behavior
162@splithead = (); # don't split any files by default
163@splititem = (); # don't split any files by default
164$splitpod = ""; # nothing for now.
165
47ec63d0 166$verbose = 0; # whether or not to print debugging info
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167
168$pod2html = "pod/pod2html";
169
3e3baf6d 170usage("") unless @ARGV;
54310121 171
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172# Overcome shell's p1,..,p8 limitation.
173# See vms/descrip_mms.template -> descrip.mms for invokation.
174if ( $^O eq 'VMS' ) { @ARGV = split(/\s+/,$ARGV[0]); }
175
65b03822 176use vars qw( %Options );
3d8876fc 177
54310121 178# parse the command-line
65b03822 179my $result = GetOptions( \%Options, qw(
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180 help
181 podpath=s
182 podroot=s
183 htmldir=s
184 htmlroot=s
185 libpods=s
47ec63d0 186 ignore=s
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187 recurse!
188 splithead=s
189 splititem=s
190 splitpod=s
191 verbose
192));
193usage("invalid parameters") unless $result;
194parse_command_line();
195
196
197# set these variables to appropriate values if the user didn't specify
198# values for them.
199$htmldir = "$htmlroot/html" unless $htmldir;
200$splitpod = "$podroot/pod" unless $splitpod;
201
202
203# make sure that the destination directory exists
204(mkdir($htmldir, 0755) ||
205 die "$0: cannot make directory $htmldir: $!\n") if ! -d $htmldir;
206
207
208# the following array will eventually contain files that are to be
209# ignored in the conversion process. these are files that have been
210# process by splititem or splithead and should not be converted as a
211# result.
3d8876fc 212my @splitdirs;
54310121 213
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214# split pods. It's important to do this before convert ANY pods because
215# it may affect some of the links
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216@splitdirs = (); # files in these directories won't get an index
217split_on_head($podroot, $htmldir, \@splitdirs, \@ignore, @splithead);
3e3baf6d 218split_on_item($podroot, \@splitdirs, \@ignore, @splititem);
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219
220
221# convert the pod pages found in @poddirs
222#warn "converting files\n" if $verbose;
223#warn "\@ignore\t= @ignore\n" if $verbose;
3d8876fc 224foreach my $dir (@podpath) {
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225 installdir($dir, $recurse, $podroot, \@splitdirs, \@ignore);
226}
227
228
229# now go through and create master indices for each pod we split
3d8876fc 230foreach my $dir (@splititem) {
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231 print "creating index $htmldir/$dir.html\n" if $verbose;
232 create_index("$htmldir/$dir.html", "$htmldir/$dir");
233}
234
3d8876fc 235foreach my $dir (@splithead) {
776d31fe 236 (my $pod = $dir) =~ s,^.*/,,;
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237 $dir .= ".pod" unless $dir =~ /(\.pod|\.pm)$/;
238 # let pod2html create the file
239 runpod2html($dir, 1);
240
241 # now go through and truncate after the index
242 $dir =~ /^(.*?)(\.pod|\.pm)?$/sm;
3d8876fc 243 my $file = "$htmldir/$1";
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244 print "creating index $file.html\n" if $verbose;
245
246 # read in everything until what would have been the first =head
247 # directive, patching the index as we go.
248 open(H, "<$file.html") ||
249 die "$0: error opening $file.html for input: $!\n";
250 $/ = "";
3d8876fc 251 my @data = ();
54310121 252 while (<H>) {
776d31fe
SH
253 last if /name="name"/i;
254 $_ =~ s{href="#(.*)">}{
255 my $url = "$pod/$1.html" ;
256 $url = Pod::Html::relativize_url( $url, "$file.html" )
257 if ( ! defined $Options{htmlroot} || $Options{htmlroot} eq '' );
258 "href=\"$url\">" ;
259 }egi;
54310121 260 push @data, $_;
776d31fe 261 }
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262 close(H);
263
47ec63d0 264 # now rewrite the file
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265 open(H, ">$file.html") ||
266 die "$0: error opening $file.html for output: $!\n";
3d8876fc 267 print H "@data", "\n";
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268 close(H);
269}
270
271##############################################################################
272
273
274sub usage {
275 warn "$0: @_\n" if @_;
276 die $usage;
277}
278
279
280sub parse_command_line {
65b03822 281 usage() if defined $Options{help};
282 $Options{help} = ""; # make -w shut up
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283
284 # list of directories
65b03822 285 @podpath = split(":", $Options{podpath}) if defined $Options{podpath};
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286
287 # lists of files
65b03822 288 @splithead = split(",", $Options{splithead}) if defined $Options{splithead};
289 @splititem = split(",", $Options{splititem}) if defined $Options{splititem};
290 @libpods = split(",", $Options{libpods}) if defined $Options{libpods};
54310121 291
65b03822 292 $htmldir = $Options{htmldir} if defined $Options{htmldir};
293 $htmlroot = $Options{htmlroot} if defined $Options{htmlroot};
294 $podroot = $Options{podroot} if defined $Options{podroot};
295 $splitpod = $Options{splitpod} if defined $Options{splitpod};
54310121 296
65b03822 297 $recurse = $Options{recurse} if defined $Options{recurse};
298 $verbose = $Options{verbose} if defined $Options{verbose};
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299
300 @ignore = map "$podroot/$_", split(",", $Options{ignore}) if defined $Options{ignore};
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301}
302
303
304sub create_index {
305 my($html, $dir) = @_;
df00c672 306 (my $pod = $dir) =~ s,^.*/,,;
54310121 307 my(@files, @filedata, @index, $file);
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LP
308 my($lcp1,$lcp2);
309
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310
311 # get the list of .html files in this directory
312 opendir(DIR, $dir) ||
313 die "$0: error opening directory $dir for reading: $!\n";
39e571d4 314 @files = sort(grep(/\.html?$/, readdir(DIR)));
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315 closedir(DIR);
316
317 open(HTML, ">$html") ||
318 die "$0: error opening $html for output: $!\n";
319
320 # for each .html file in the directory, extract the index
321 # embedded in the file and throw it into the big index.
322 print HTML "<DL COMPACT>\n";
323 foreach $file (@files) {
324 $/ = "";
325
326 open(IN, "<$dir/$file") ||
327 die "$0: error opening $dir/$file for input: $!\n";
328 @filedata = <IN>;
329 close(IN);
330
331 # pull out the NAME section
df00c672
SH
332 my $name;
333 ($name) = grep(/name="name"/i, @filedata);
334 ($lcp1,$lcp2) = ($name =~ m,/H1>\s(\S+)\s[\s-]*(.*?)\s*$,smi);
335 if (defined $lcp1 and $lcp1 =~ m,^<P>$,i) { # Uninteresting. Try again.
336 ($lcp1,$lcp2) = ($name =~ m,/H1>\s<P>\s*(\S+)\s[\s-]*(.*?)\s*$,smi);
af19f77d 337 }
df00c672 338 my $url= "$pod/$file" ;
65b03822 339 if ( ! defined $Options{htmlroot} || $Options{htmlroot} eq '' ) {
df00c672 340 $url = Pod::Html::relativize_url( "$pod/$file", $html ) ;
29f227c9
BS
341 }
342
df00c672
SH
343 if (defined $lcp1) {
344 print HTML qq(<DT><A HREF="$url">);
345 print HTML "$lcp1</A></DT><DD>$lcp2</DD>\n";
346 }
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347
348 next;
349
350 @index = grep(/<!-- INDEX BEGIN -->.*<!-- INDEX END -->/s,
351 @filedata);
352 for (@index) {
af19f77d 353 s/<!-- INDEX BEGIN -->(\s*<!--)(.*)(-->\s*)<!-- INDEX END -->/$lcp2/s;
54310121 354 s,#,$dir/$file#,g;
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355 print HTML "$_\n<P><HR><P>\n";
356 }
357 }
358 print HTML "</DL>\n";
359
360 close(HTML);
361}
362
363
364sub split_on_head {
365 my($podroot, $htmldir, $splitdirs, $ignore, @splithead) = @_;
366 my($pod, $dirname, $filename);
367
368 # split the files specified in @splithead on =head[1-6] pod directives
369 print "splitting files by head.\n" if $verbose && $#splithead >= 0;
370 foreach $pod (@splithead) {
371 # figure out the directory name and filename
372 $pod =~ s,^([^/]*)$,/$1,;
df00c672 373 $pod =~ m,(.*)/(.*?)(\.pod)?$,;
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374 $dirname = $1;
375 $filename = "$2.pod";
376
377 # since we are splitting this file it shouldn't be converted.
378 push(@$ignore, "$podroot/$dirname/$filename");
379
380 # split the pod
381 splitpod("$podroot/$dirname/$filename", "$podroot/$dirname", $htmldir,
382 $splitdirs);
383 }
384}
385
386
387sub split_on_item {
388 my($podroot, $splitdirs, $ignore, @splititem) = @_;
389 my($pwd, $dirname, $filename);
390
391 print "splitting files by item.\n" if $verbose && $#splititem >= 0;
392 $pwd = getcwd();
cac3fadd
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393 my $splitter = File::Spec->rel2abs("$splitpod/splitpod", $pwd);
394 my $perl = File::Spec->rel2abs($^X, $pwd);
3d8876fc 395 foreach my $pod (@splititem) {
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396 # figure out the directory to split into
397 $pod =~ s,^([^/]*)$,/$1,;
df00c672 398 $pod =~ m,(.*)/(.*?)(\.pod)?$,;
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399 $dirname = "$1/$2";
400 $filename = "$2.pod";
401
402 # since we are splitting this file it shouldn't be converted.
403 push(@$ignore, "$podroot/$dirname.pod");
404
405 # split the pod
406 push(@$splitdirs, "$podroot/$dirname");
407 if (! -d "$podroot/$dirname") {
408 mkdir("$podroot/$dirname", 0755) ||
409 die "$0: error creating directory $podroot/$dirname: $!\n";
410 }
411 chdir("$podroot/$dirname") ||
412 die "$0: error changing to directory $podroot/$dirname: $!\n";
3e3baf6d
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413 die "$splitter not found. Use '-splitpod dir' option.\n"
414 unless -f $splitter;
ab9905e6 415 system($perl, $splitter, "../$filename") &&
3e3baf6d 416 warn "$0: error running '$splitter ../$filename'"
e05c04ea 417 ." from $podroot/$dirname";
54310121
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418 }
419 chdir($pwd);
420}
421
422
423#
424# splitpod - splits a .pod file into several smaller .pod files
425# where a new file is started each time a =head[1-6] pod directive
426# is encountered in the input file.
427#
428sub splitpod {
429 my($pod, $poddir, $htmldir, $splitdirs) = @_;
430 my(@poddata, @filedata, @heads);
431 my($file, $i, $j, $prevsec, $section, $nextsec);
432
433 print "splitting $pod\n" if $verbose;
434
435 # read the file in paragraphs
436 $/ = "";
437 open(SPLITIN, "<$pod") ||
438 die "$0: error opening $pod for input: $!\n";
439 @filedata = <SPLITIN>;
440 close(SPLITIN) ||
441 die "$0: error closing $pod: $!\n";
442
443 # restore the file internally by =head[1-6] sections
444 @poddata = ();
445 for ($i = 0, $j = -1; $i <= $#filedata; $i++) {
446 $j++ if ($filedata[$i] =~ /^\s*=head[1-6]/);
447 if ($j >= 0) {
448 $poddata[$j] = "" unless defined $poddata[$j];
449 $poddata[$j] .= "\n$filedata[$i]" if $j >= 0;
450 }
451 }
452
453 # create list of =head[1-6] sections so that we can rewrite
454 # L<> links as necessary.
3d8876fc 455 my %heads = ();
54310121 456 foreach $i (0..$#poddata) {
776d31fe 457 $heads{anchorify($1)} = 1 if $poddata[$i] =~ /=head[1-6]\s+(.*)/;
54310121
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458 }
459
460 # create a directory of a similar name and store all the
461 # files in there
462 $pod =~ s,.*/(.*),$1,; # get the last part of the name
3d8876fc 463 my $dir = $pod;
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464 $dir =~ s/\.pod//g;
465 push(@$splitdirs, "$poddir/$dir");
466 mkdir("$poddir/$dir", 0755) ||
467 die "$0: could not create directory $poddir/$dir: $!\n"
468 unless -d "$poddir/$dir";
469
470 $poddata[0] =~ /^\s*=head[1-6]\s+(.*)/;
471 $section = "";
472 $nextsec = $1;
473
474 # for each section of the file create a separate pod file
475 for ($i = 0; $i <= $#poddata; $i++) {
476 # determine the "prev" and "next" links
477 $prevsec = $section;
478 $section = $nextsec;
479 if ($i < $#poddata) {
480 $poddata[$i+1] =~ /^\s*=head[1-6]\s+(.*)/;
481 $nextsec = $1;
482 } else {
483 $nextsec = "";
484 }
485
486 # determine an appropriate filename (this must correspond with
487 # what pod2html will try and guess)
488 # $poddata[$i] =~ /^\s*=head[1-6]\s+(.*)/;
776d31fe 489 $file = "$dir/" . anchorify($section) . ".pod";
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490
491 # create the new .pod file
492 print "\tcreating $poddir/$file\n" if $verbose;
493 open(SPLITOUT, ">$poddir/$file") ||
494 die "$0: error opening $poddir/$file for output: $!\n";
495 $poddata[$i] =~ s,L<([^<>]*)>,
776d31fe
SH
496 defined $heads{anchorify($1)} ? "L<$dir/$1>" : "L<$1>"
497 ,ge;
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498 print SPLITOUT $poddata[$i]."\n\n";
499 print SPLITOUT "=over 4\n\n";
500 print SPLITOUT "=item *\n\nBack to L<$dir/\"$prevsec\">\n\n" if $prevsec;
501 print SPLITOUT "=item *\n\nForward to L<$dir/\"$nextsec\">\n\n" if $nextsec;
502 print SPLITOUT "=item *\n\nUp to L<$dir>\n\n";
503 print SPLITOUT "=back\n\n";
504 close(SPLITOUT) ||
505 die "$0: error closing $poddir/$file: $!\n";
506 }
507}
508
509
510#
511# installdir - takes care of converting the .pod and .pm files in the
512# current directory to .html files and then installing those.
513#
514sub installdir {
515 my($dir, $recurse, $podroot, $splitdirs, $ignore) = @_;
516 my(@dirlist, @podlist, @pmlist, $doindex);
517
518 @dirlist = (); # directories to recurse on
519 @podlist = (); # .pod files to install
520 @pmlist = (); # .pm files to install
521
522 # should files in this directory get an index?
523 $doindex = (grep($_ eq "$podroot/$dir", @$splitdirs) ? 0 : 1);
524
525 opendir(DIR, "$podroot/$dir")
526 || die "$0: error opening directory $podroot/$dir: $!\n";
527
528 # find the directories to recurse on
fe4c6be1 529 @dirlist = map { if ($^O eq 'VMS') {/^(.*)\.dir$/i; "$dir/$1";} else {"$dir/$_";}}
54310121
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530 grep(-d "$podroot/$dir/$_" && !/^\.{1,2}/, readdir(DIR)) if $recurse;
531 rewinddir(DIR);
532
533 # find all the .pod files within the directory
534 @podlist = map { /^(.*)\.pod$/; "$dir/$1" }
535 grep(! -d "$podroot/$dir/$_" && /\.pod$/, readdir(DIR));
536 rewinddir(DIR);
537
538 # find all the .pm files within the directory
539 @pmlist = map { /^(.*)\.pm$/; "$dir/$1" }
540 grep(! -d "$podroot/$dir/$_" && /\.pm$/, readdir(DIR));
541
542 closedir(DIR);
543
544 # recurse on all subdirectories we kept track of
545 foreach $dir (@dirlist) {
546 installdir($dir, $recurse, $podroot, $splitdirs, $ignore);
547 }
548
549 # install all the pods we found
3d8876fc 550 foreach my $pod (@podlist) {
54310121 551 # check if we should ignore it.
47ec63d0
RGS
552 next if $pod =~ m(/t/); # comes from a test file
553 next if grep($_ eq "$pod.pod", @$ignore);
54310121
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554
555 # check if a .pm files exists too
df00c672 556 if (grep($_ eq $pod, @pmlist)) {
e1b7525f
YO
557 print "$0: Warning both '$podroot/$pod.pod' and "
558 . "'$podroot/$pod.pm' exist, using pod\n";
54310121
PP
559 push(@ignore, "$pod.pm");
560 }
561 runpod2html("$pod.pod", $doindex);
562 }
563
564 # install all the .pm files we found
3d8876fc 565 foreach my $pm (@pmlist) {
54310121 566 # check if we should ignore it.
47ec63d0 567 next if $pm =~ m(/t/); # comes from a test file
54310121
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568 next if grep($_ eq "$pm.pm", @ignore);
569
570 runpod2html("$pm.pm", $doindex);
571 }
572}
573
574
575#
576# runpod2html - invokes pod2html to convert a .pod or .pm file to a .html
577# file.
578#
579sub runpod2html {
580 my($pod, $doindex) = @_;
581 my($html, $i, $dir, @dirs);
582
583 $html = $pod;
584 $html =~ s/\.(pod|pm)$/.html/g;
585
586 # make sure the destination directories exist
587 @dirs = split("/", $html);
588 $dir = "$htmldir/";
589 for ($i = 0; $i < $#dirs; $i++) {
590 if (! -d "$dir$dirs[$i]") {
591 mkdir("$dir$dirs[$i]", 0755) ||
592 die "$0: error creating directory $dir$dirs[$i]: $!\n";
593 }
594 $dir .= "$dirs[$i]/";
595 }
596
597 # invoke pod2html
598 print "$podroot/$pod => $htmldir/$html\n" if $verbose;
df00c672 599 Pod::Html::pod2html(
5a039dd3 600 "--htmldir=$htmldir",
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601 "--htmlroot=$htmlroot",
602 "--podpath=".join(":", @podpath),
603 "--podroot=$podroot", "--netscape",
7c82de66 604 "--header",
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605 ($doindex ? "--index" : "--noindex"),
606 "--" . ($recurse ? "" : "no") . "recurse",
607 ($#libpods >= 0) ? "--libpods=" . join(":", @libpods) : "",
608 "--infile=$podroot/$pod", "--outfile=$htmldir/$html");
609 die "$0: error running $pod2html: $!\n" if $?;
610}