1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
|
require 5;
package Pod::Simple::HTML;
use strict;
use Pod::Simple::PullParser ();
use vars qw(
@ISA %Tagmap $Computerese $LamePad $Linearization_Limit $VERSION
$Perldoc_URL_Prefix $Perldoc_URL_Postfix $Man_URL_Prefix $Man_URL_Postfix
$Title_Prefix $Title_Postfix $HTML_EXTENSION %ToIndex
$Doctype_decl $Content_decl
);
@ISA = ('Pod::Simple::PullParser');
$VERSION = '3.16';
BEGIN {
if(defined &DEBUG) { } # no-op
elsif( defined &Pod::Simple::DEBUG ) { *DEBUG = \&Pod::Simple::DEBUG }
else { *DEBUG = sub () {0}; }
}
$Doctype_decl ||= ''; # No. Just No. Don't even ask me for it.
# qq{<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
# "http://www.w3.org/TR/html4/loose.dtd">\n};
$Content_decl ||=
q{<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" >};
$HTML_EXTENSION = '.html' unless defined $HTML_EXTENSION;
$Computerese = "" unless defined $Computerese;
$LamePad = '' unless defined $LamePad;
$Linearization_Limit = 120 unless defined $Linearization_Limit;
# headings/items longer than that won't get an <a name="...">
$Perldoc_URL_Prefix = 'http://search.cpan.org/perldoc?'
unless defined $Perldoc_URL_Prefix;
$Perldoc_URL_Postfix = ''
unless defined $Perldoc_URL_Postfix;
$Man_URL_Prefix = 'http://man.he.net/man';
$Man_URL_Postfix = '';
$Title_Prefix = '' unless defined $Title_Prefix;
$Title_Postfix = '' unless defined $Title_Postfix;
%ToIndex = map {; $_ => 1 } qw(head1 head2 head3 head4 ); # item-text
# 'item-text' stuff in the index doesn't quite work, and may
# not be a good idea anyhow.
__PACKAGE__->_accessorize(
'perldoc_url_prefix',
# In turning L<Foo::Bar> into http://whatever/Foo%3a%3aBar, what
# to put before the "Foo%3a%3aBar".
# (for singleton mode only?)
'perldoc_url_postfix',
# what to put after "Foo%3a%3aBar" in the URL. Normally "".
'man_url_prefix',
# In turning L<crontab(5)> into http://whatever/man/1/crontab, what
# to put before the "1/crontab".
'man_url_postfix',
# what to put after the "1/crontab" in the URL. Normally "".
'batch_mode', # whether we're in batch mode
'batch_mode_current_level',
# When in batch mode, how deep the current module is: 1 for "LWP",
# 2 for "LWP::Procotol", 3 for "LWP::Protocol::GHTTP", etc
'title_prefix', 'title_postfix',
# What to put before and after the title in the head.
# Should already be &-escaped
'html_h_level',
'html_header_before_title',
'html_header_after_title',
'html_footer',
'index', # whether to add an index at the top of each page
# (actually it's a table-of-contents, but we'll call it an index,
# out of apparently longstanding habit)
'html_css', # URL of CSS file to point to
'html_javascript', # URL of Javascript file to point to
'force_title', # should already be &-escaped
'default_title', # should already be &-escaped
);
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
my @_to_accept;
%Tagmap = (
'Verbatim' => "\n<pre$Computerese>",
'/Verbatim' => "</pre>\n",
'VerbatimFormatted' => "\n<pre$Computerese>",
'/VerbatimFormatted' => "</pre>\n",
'VerbatimB' => "<b>",
'/VerbatimB' => "</b>",
'VerbatimI' => "<i>",
'/VerbatimI' => "</i>",
'VerbatimBI' => "<b><i>",
'/VerbatimBI' => "</i></b>",
'Data' => "\n",
'/Data' => "\n",
'head1' => "\n<h1>", # And also stick in an <a name="...">
'head2' => "\n<h2>", # ''
'head3' => "\n<h3>", # ''
'head4' => "\n<h4>", # ''
'/head1' => "</a></h1>\n",
'/head2' => "</a></h2>\n",
'/head3' => "</a></h3>\n",
'/head4' => "</a></h4>\n",
'X' => "<!--\n\tINDEX: ",
'/X' => "\n-->",
changes(qw(
Para=p
B=b I=i
over-bullet=ul
over-number=ol
over-text=dl
over-block=blockquote
item-bullet=li
item-number=li
item-text=dt
)),
changes2(
map {; m/^([-a-z]+)/s && push @_to_accept, $1; $_ }
qw[
sample=samp
definition=dfn
kbd=keyboard
variable=var
citation=cite
abbreviation=abbr
acronym=acronym
subscript=sub
superscript=sup
big=big
small=small
underline=u
strikethrough=s
] # no point in providing a way to get <q>...</q>, I think
),
'/item-bullet' => "</li>$LamePad\n",
'/item-number' => "</li>$LamePad\n",
'/item-text' => "</a></dt>$LamePad\n",
'item-body' => "\n<dd>",
'/item-body' => "</dd>\n",
'B' => "<b>", '/B' => "</b>",
'I' => "<i>", '/I' => "</i>",
'F' => "<em$Computerese>", '/F' => "</em>",
'C' => "<code$Computerese>", '/C' => "</code>",
'L' => "<a href='YOU_SHOULD_NEVER_SEE_THIS'>", # ideally never used!
'/L' => "</a>",
);
sub changes {
return map {; m/^([-_:0-9a-zA-Z]+)=([-_:0-9a-zA-Z]+)$/s
? ( $1, => "\n<$2>", "/$1", => "</$2>\n" ) : die "Funky $_"
} @_;
}
sub changes2 {
return map {; m/^([-_:0-9a-zA-Z]+)=([-_:0-9a-zA-Z]+)$/s
? ( $1, => "<$2>", "/$1", => "</$2>" ) : die "Funky $_"
} @_;
}
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sub go { Pod::Simple::HTML->parse_from_file(@ARGV); exit 0 }
# Just so we can run from the command line. No options.
# For that, use perldoc!
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sub new {
my $new = shift->SUPER::new(@_);
#$new->nix_X_codes(1);
$new->nbsp_for_S(1);
$new->accept_targets( 'html', 'HTML' );
$new->accept_codes('VerbatimFormatted');
$new->accept_codes(@_to_accept);
DEBUG > 2 and print "To accept: ", join(' ',@_to_accept), "\n";
$new->perldoc_url_prefix( $Perldoc_URL_Prefix );
$new->perldoc_url_postfix( $Perldoc_URL_Postfix );
$new->man_url_prefix( $Man_URL_Prefix );
$new->man_url_postfix( $Man_URL_Postfix );
$new->title_prefix( $Title_Prefix );
$new->title_postfix( $Title_Postfix );
$new->html_header_before_title(
qq[$Doctype_decl<html><head><title>]
);
$new->html_header_after_title( join "\n" =>
"</title>",
$Content_decl,
"</head>\n<body class='pod'>",
$new->version_tag_comment,
"<!-- start doc -->\n",
);
$new->html_footer( qq[\n<!-- end doc -->\n\n</body></html>\n] );
$new->{'Tagmap'} = {%Tagmap};
return $new;
}
sub __adjust_html_h_levels {
my ($self) = @_;
my $Tagmap = $self->{'Tagmap'};
my $add = $self->html_h_level;
return unless defined $add;
return if ($self->{'Adjusted_html_h_levels'}||0) == $add;
$add -= 1;
for (1 .. 4) {
$Tagmap->{"head$_"} =~ s/$_/$_ + $add/e;
$Tagmap->{"/head$_"} =~ s/$_/$_ + $add/e;
}
}
sub batch_mode_page_object_init {
my($self, $batchconvobj, $module, $infile, $outfile, $depth) = @_;
DEBUG and print "Initting $self\n for $module\n",
" in $infile\n out $outfile\n depth $depth\n";
$self->batch_mode(1);
$self->batch_mode_current_level($depth);
return $self;
}
sub run {
my $self = $_[0];
return $self->do_middle if $self->bare_output;
return
$self->do_beginning && $self->do_middle && $self->do_end;
}
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sub do_beginning {
my $self = $_[0];
my $title;
if(defined $self->force_title) {
$title = $self->force_title;
DEBUG and print "Forcing title to be $title\n";
} else {
# Actually try looking for the title in the document:
$title = $self->get_short_title();
unless($self->content_seen) {
DEBUG and print "No content seen in search for title.\n";
return;
}
$self->{'Title'} = $title;
if(defined $title and $title =~ m/\S/) {
$title = $self->title_prefix . esc($title) . $self->title_postfix;
} else {
$title = $self->default_title;
$title = '' unless defined $title;
DEBUG and print "Title defaults to $title\n";
}
}
my $after = $self->html_header_after_title || '';
if($self->html_css) {
my $link =
$self->html_css =~ m/</
? $self->html_css # It's a big blob of markup, let's drop it in
: sprintf( # It's just a URL, so let's wrap it up
qq[<link rel="stylesheet" type="text/css" title="pod_stylesheet" href="%s">\n],
$self->html_css,
);
$after =~ s{(</head>)}{$link\n$1}i; # otherwise nevermind
}
$self->_add_top_anchor(\$after);
if($self->html_javascript) {
my $link =
$self->html_javascript =~ m/</
? $self->html_javascript # It's a big blob of markup, let's drop it in
: sprintf( # It's just a URL, so let's wrap it up
qq[<script type="text/javascript" src="%s"></script>\n],
$self->html_javascript,
);
$after =~ s{(</head>)}{$link\n$1}i; # otherwise nevermind
}
print {$self->{'output_fh'}}
$self->html_header_before_title || '',
$title, # already escaped
$after,
;
DEBUG and print "Returning from do_beginning...\n";
return 1;
}
sub _add_top_anchor {
my($self, $text_r) = @_;
unless($$text_r and $$text_r =~ m/name=['"]___top['"]/) { # a hack
$$text_r .= "<a name='___top' class='dummyTopAnchor' ></a>\n";
}
return;
}
sub version_tag_comment {
my $self = shift;
return sprintf
"<!--\n generated by %s v%s,\n using %s v%s,\n under Perl v%s at %s GMT.\n\n %s\n\n-->\n",
esc(
ref($self), $self->VERSION(), $ISA[0], $ISA[0]->VERSION(),
$], scalar(gmtime),
), $self->_modnote(),
;
}
sub _modnote {
my $class = ref($_[0]) || $_[0];
return join "\n " => grep m/\S/, split "\n",
qq{
If you want to change this HTML document, you probably shouldn't do that
by changing it directly. Instead, see about changing the calling options
to $class, and/or subclassing $class,
then reconverting this document from the Pod source.
When in doubt, email the author of $class for advice.
See 'perldoc $class' for more info.
};
}
sub do_end {
my $self = $_[0];
print {$self->{'output_fh'}} $self->html_footer || '';
return 1;
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Normally this would just be a call to _do_middle_main_loop -- but we
# have to do some elaborate things to emit all the content and then
# summarize it and output it /before/ the content that it's a summary of.
sub do_middle {
my $self = $_[0];
return $self->_do_middle_main_loop unless $self->index;
if( $self->output_string ) {
# An efficiency hack
my $out = $self->output_string; #it's a reference to it
my $sneakytag = "\f\f\e\e\b\bIndex Here\e\e\b\b\f\f\n";
$$out .= $sneakytag;
$self->_do_middle_main_loop;
$sneakytag = quotemeta($sneakytag);
my $index = $self->index_as_html();
if( $$out =~ s/$sneakytag/$index/s ) {
# Expected case
DEBUG and print "Inserted ", length($index), " bytes of index HTML into $out.\n";
} else {
DEBUG and print "Odd, couldn't find where to insert the index in the output!\n";
# I don't think this should ever happen.
}
return 1;
}
unless( $self->output_fh ) {
require Carp;
Carp::confess("Parser object \$p doesn't seem to have any output object! I don't know how to deal with that.");
}
# If we get here, we're outputting to a FH. So we need to do some magic.
# Namely, divert all content to a string, which we output after the index.
my $fh = $self->output_fh;
my $content = '';
{
# Our horrible bait and switch:
$self->output_string( \$content );
$self->_do_middle_main_loop;
$self->abandon_output_string();
$self->output_fh($fh);
}
print $fh $self->index_as_html();
print $fh $content;
return 1;
}
###########################################################################
sub index_as_html {
my $self = $_[0];
# This is meant to be called AFTER the input document has been parsed!
my $points = $self->{'PSHTML_index_points'} || [];
@$points > 1 or return qq[<div class='indexgroupEmpty'></div>\n];
# There's no point in having a 0-item or 1-item index, I dare say.
my(@out) = qq{\n<div class='indexgroup'>};
my $level = 0;
my( $target_level, $previous_tagname, $tagname, $text, $anchorname, $indent);
foreach my $p (@$points, ['head0', '(end)']) {
($tagname, $text) = @$p;
$anchorname = $self->section_escape($text);
if( $tagname =~ m{^head(\d+)$} ) {
$target_level = 0 + $1;
} else { # must be some kinda list item
if($previous_tagname =~ m{^head\d+$} ) {
$target_level = $level + 1;
} else {
$target_level = $level; # no change needed
}
}
# Get to target_level by opening or closing ULs
while($level > $target_level)
{ --$level; push @out, (" " x $level) . "</ul>"; }
while($level < $target_level)
{ ++$level; push @out, (" " x ($level-1))
. "<ul class='indexList indexList$level'>"; }
$previous_tagname = $tagname;
next unless $level;
$indent = ' ' x $level;
push @out, sprintf
"%s<li class='indexItem indexItem%s'><a href='#%s'>%s</a>",
$indent, $level, esc($anchorname), esc($text)
;
}
push @out, "</div>\n";
return join "\n", @out;
}
###########################################################################
sub _do_middle_main_loop {
my $self = $_[0];
my $fh = $self->{'output_fh'};
my $tagmap = $self->{'Tagmap'};
$self->__adjust_html_h_levels;
my($token, $type, $tagname, $linkto, $linktype);
my @stack;
my $dont_wrap = 0;
while($token = $self->get_token) {
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
if( ($type = $token->type) eq 'start' ) {
if(($tagname = $token->tagname) eq 'L') {
$linktype = $token->attr('type') || 'insane';
$linkto = $self->do_link($token);
if(defined $linkto and length $linkto) {
esc($linkto);
# (Yes, SGML-escaping applies on top of %-escaping!
# But it's rarely noticeable in practice.)
print $fh qq{<a href="$linkto" class="podlink$linktype"\n>};
} else {
print $fh "<a>"; # Yes, an 'a' element with no attributes!
}
} elsif ($tagname eq 'item-text' or $tagname =~ m/^head\d$/s) {
print $fh $tagmap->{$tagname} || next;
my @to_unget;
while(1) {
push @to_unget, $self->get_token;
last if $to_unget[-1]->is_end
and $to_unget[-1]->tagname eq $tagname;
# TODO: support for X<...>'s found in here? (maybe hack into linearize_tokens)
}
my $name = $self->linearize_tokens(@to_unget);
$name = $self->do_section($name, $token) if defined $name;
print $fh "<a ";
print $fh "class='u' href='#___top' title='click to go to top of document'\n"
if $tagname =~ m/^head\d$/s;
if(defined $name) {
my $esc = esc( $self->section_name_tidy( $name ) );
print $fh qq[name="$esc"];
DEBUG and print "Linearized ", scalar(@to_unget),
" tokens as \"$name\".\n";
push @{ $self->{'PSHTML_index_points'} }, [$tagname, $name]
if $ToIndex{ $tagname };
# Obviously, this discards all formatting codes (saving
# just their content), but ahwell.
} else { # ludicrously long, so nevermind
DEBUG and print "Linearized ", scalar(@to_unget),
" tokens, but it was too long, so nevermind.\n";
}
print $fh "\n>";
$self->unget_token(@to_unget);
} elsif ($tagname eq 'Data') {
my $next = $self->get_token;
next unless defined $next;
unless( $next->type eq 'text' ) {
$self->unget_token($next);
next;
}
DEBUG and print " raw text ", $next->text, "\n";
print $fh "\n" . $next->text . "\n";
next;
} else {
if( $tagname =~ m/^over-/s ) {
push @stack, '';
} elsif( $tagname =~ m/^item-/s and @stack and $stack[-1] ) {
print $fh $stack[-1];
$stack[-1] = '';
}
print $fh $tagmap->{$tagname} || next;
++$dont_wrap if $tagname eq 'Verbatim' or $tagname eq "VerbatimFormatted"
or $tagname eq 'X';
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
} elsif( $type eq 'end' ) {
if( ($tagname = $token->tagname) =~ m/^over-/s ) {
if( my $end = pop @stack ) {
print $fh $end;
}
} elsif( $tagname =~ m/^item-/s and @stack) {
$stack[-1] = $tagmap->{"/$tagname"};
if( $tagname eq 'item-text' and defined(my $next = $self->get_token) ) {
$self->unget_token($next);
if( $next->type eq 'start' ) {
print $fh $tagmap->{"/item-text"},$tagmap->{"item-body"};
$stack[-1] = $tagmap->{"/item-body"};
}
}
next;
}
print $fh $tagmap->{"/$tagname"} || next;
--$dont_wrap if $tagname eq 'Verbatim' or $tagname eq 'X';
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
} elsif( $type eq 'text' ) {
esc($type = $token->text); # reuse $type, why not
$type =~ s/([\?\!\"\'\.\,]) /$1\n/g unless $dont_wrap;
print $fh $type;
}
}
return 1;
}
###########################################################################
#
sub do_section {
my($self, $name, $token) = @_;
return $name;
}
sub do_link {
my($self, $token) = @_;
my $type = $token->attr('type');
if(!defined $type) {
$self->whine("Typeless L!?", $token->attr('start_line'));
} elsif( $type eq 'pod') { return $self->do_pod_link($token);
} elsif( $type eq 'url') { return $self->do_url_link($token);
} elsif( $type eq 'man') { return $self->do_man_link($token);
} else {
$self->whine("L of unknown type $type!?", $token->attr('start_line'));
}
return 'FNORG'; # should never get called
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
sub do_url_link { return $_[1]->attr('to') }
sub do_man_link {
my ($self, $link) = @_;
my $to = $link->attr('to');
my $frag = $link->attr('section');
return undef unless defined $to and length $to; # should never happen
$frag = $self->section_escape($frag)
if defined $frag and length($frag .= ''); # (stringify)
DEBUG and print "Resolving \"$to/$frag\"\n\n";
return $self->resolve_man_page_link($to, $frag);
}
sub do_pod_link {
# And now things get really messy...
my($self, $link) = @_;
my $to = $link->attr('to');
my $section = $link->attr('section');
return undef unless( # should never happen
(defined $to and length $to) or
(defined $section and length $section)
);
$section = $self->section_escape($section)
if defined $section and length($section .= ''); # (stringify)
DEBUG and printf "Resolving \"%s\" \"%s\"...\n",
$to || "(nil)", $section || "(nil)";
{
# An early hack:
my $complete_url = $self->resolve_pod_link_by_table($to, $section);
if( $complete_url ) {
DEBUG > 1 and print "resolve_pod_link_by_table(T,S) gives ",
$complete_url, "\n (Returning that.)\n";
return $complete_url;
} else {
DEBUG > 4 and print " resolve_pod_link_by_table(T,S)",
" didn't return anything interesting.\n";
}
}
if(defined $to and length $to) {
# Give this routine first hack again
my $there = $self->resolve_pod_link_by_table($to);
if(defined $there and length $there) {
DEBUG > 1
and print "resolve_pod_link_by_table(T) gives $there\n";
} else {
$there =
$self->resolve_pod_page_link($to, $section);
# (I pass it the section value, but I don't see a
# particular reason it'd use it.)
DEBUG > 1 and print "resolve_pod_page_link gives ", $to || "(nil)", "\n";
unless( defined $there and length $there ) {
DEBUG and print "Can't resolve $to\n";
return undef;
}
# resolve_pod_page_link returning undef is how it
# can signal that it gives up on making a link
}
$to = $there;
}
#DEBUG and print "So far [", $to||'nil', "] [", $section||'nil', "]\n";
my $out = (defined $to and length $to) ? $to : '';
$out .= "#" . $section if defined $section and length $section;
unless(length $out) { # sanity check
DEBUG and printf "Oddly, couldn't resolve \"%s\" \"%s\"...\n",
$to || "(nil)", $section || "(nil)";
return undef;
}
DEBUG and print "Resolved to $out\n";
return $out;
}
# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
sub section_escape {
my($self, $section) = @_;
return $self->section_url_escape(
$self->section_name_tidy($section)
);
}
sub section_name_tidy {
my($self, $section) = @_;
$section =~ s/^\s+//;
$section =~ s/\s+$//;
$section =~ tr/ /_/;
$section =~ tr/\x00-\x1F\x80-\x9F//d if 'A' eq chr(65); # drop crazy characters
$section = $self->unicode_escape_url($section);
$section = '_' unless length $section;
return $section;
}
sub section_url_escape { shift->general_url_escape(@_) }
sub pagepath_url_escape { shift->general_url_escape(@_) }
sub manpage_url_escape { shift->general_url_escape(@_) }
sub general_url_escape {
my($self, $string) = @_;
$string =~ s/([^\x00-\xFF])/join '', map sprintf('%%%02X',$_), unpack 'C*', $1/eg;
# express Unicode things as urlencode(utf(orig)).
# A pretty conservative escaping, behoovey even for query components
# of a URL (see RFC 2396)
$string =~ s/([^-_\.!~*()abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789])/sprintf('%%%02X',ord($1))/eg;
# Yes, stipulate the list without a range, so that this can work right on
# all charsets that this module happens to run under.
# Altho, hmm, what about that ord? Presumably that won't work right
# under non-ASCII charsets. Something should be done
# about that, I guess?
return $string;
}
#--------------------------------------------------------------------------
#
# Oh look, a yawning portal to Hell! Let's play touch football right by it!
#
sub resolve_pod_page_link {
# resolve_pod_page_link must return a properly escaped URL
my $self = shift;
return $self->batch_mode()
? $self->resolve_pod_page_link_batch_mode(@_)
: $self->resolve_pod_page_link_singleton_mode(@_)
;
}
sub resolve_pod_page_link_singleton_mode {
my($self, $it) = @_;
return undef unless defined $it and length $it;
my $url = $self->pagepath_url_escape($it);
$url =~ s{::$}{}s; # probably never comes up anyway
$url =~ s{::}{/}g unless $self->perldoc_url_prefix =~ m/\?/s; # sane DWIM?
return undef unless length $url;
return $self->perldoc_url_prefix . $url . $self->perldoc_url_postfix;
}
sub resolve_pod_page_link_batch_mode {
my($self, $to) = @_;
DEBUG > 1 and print " During batch mode, resolving $to ...\n";
my @path = grep length($_), split m/::/s, $to, -1;
unless( @path ) { # sanity
DEBUG and print "Very odd! Splitting $to gives (nil)!\n";
return undef;
}
$self->batch_mode_rectify_path(\@path);
my $out = join('/', map $self->pagepath_url_escape($_), @path)
. $HTML_EXTENSION;
DEBUG > 1 and print " => $out\n";
return $out;
}
sub batch_mode_rectify_path {
my($self, $pathbits) = @_;
my $level = $self->batch_mode_current_level;
$level--; # how many levels up to go to get to the root
if($level < 1) {
unshift @$pathbits, '.'; # just to be pretty
} else {
unshift @$pathbits, ('..') x $level;
}
return;
}
sub resolve_man_page_link {
my ($self, $to, $frag) = @_;
my ($page, $section) = $to =~ /^([^(]+)(?:[(](\d+)[)])?$/;
return undef unless defined $page and length $page;
$section ||= 1;
return $self->man_url_prefix . "$section/"
. $self->manpage_url_escape($page)
. $self->man_url_postfix;
}
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sub resolve_pod_link_by_table {
# A crazy hack to allow specifying custom L<foo> => URL mappings
return unless $_[0]->{'podhtml_LOT'}; # An optimizy shortcut
my($self, $to, $section) = @_;
# TODO: add a method that actually populates podhtml_LOT from a file?
if(defined $section) {
$to = '' unless defined $to and length $to;
return $self->{'podhtml_LOT'}{"$to#$section"}; # quite possibly undef!
} else {
return $self->{'podhtml_LOT'}{$to}; # quite possibly undef!
}
return;
}
###########################################################################
sub linearize_tokens { # self, tokens
my $self = shift;
my $out = '';
my $t;
while($t = shift @_) {
if(!ref $t or !UNIVERSAL::can($t, 'is_text')) {
$out .= $t; # a string, or some insane thing
} elsif($t->is_text) {
$out .= $t->text;
} elsif($t->is_start and $t->tag eq 'X') {
# Ignore until the end of this X<...> sequence:
my $x_open = 1;
while($x_open) {
next if( ($t = shift @_)->is_text );
if( $t->is_start and $t->tag eq 'X') { ++$x_open }
elsif($t->is_end and $t->tag eq 'X') { --$x_open }
}
}
}
return undef if length $out > $Linearization_Limit;
return $out;
}
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sub unicode_escape_url {
my($self, $string) = @_;
$string =~ s/([^\x00-\xFF])/'('.ord($1).')'/eg;
# Turn char 1234 into "(1234)"
return $string;
}
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sub esc { # a function.
if(defined wantarray) {
if(wantarray) {
@_ = splice @_; # break aliasing
} else {
my $x = shift;
$x =~ s/([^-\n\t !\#\$\%\(\)\*\+,\.\~\/\:\;=\?\@\[\\\]\^_\`\{\|\}abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789])/'&#'.(ord($1)).';'/eg;
return $x;
}
}
foreach my $x (@_) {
# Escape things very cautiously:
$x =~ s/([^-\n\t !\#\$\%\(\)\*\+,\.\~\/\:\;=\?\@\[\\\]\^_\`\{\|\}abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789])/'&#'.(ord($1)).';'/eg
if defined $x;
# Leave out "- so that "--" won't make it thru in X-generated comments
# with text in them.
# Yes, stipulate the list without a range, so that this can work right on
# all charsets that this module happens to run under.
# Altho, hmm, what about that ord? Presumably that won't work right
# under non-ASCII charsets. Something should be done about that.
}
return @_;
}
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1;
__END__
=head1 NAME
Pod::Simple::HTML - convert Pod to HTML
=head1 SYNOPSIS
perl -MPod::Simple::HTML -e Pod::Simple::HTML::go thingy.pod
=head1 DESCRIPTION
This class is for making an HTML rendering of a Pod document.
This is a subclass of L<Pod::Simple::PullParser> and inherits all its
methods (and options).
Note that if you want to do a batch conversion of a lot of Pod
documents to HTML, you should see the module L<Pod::Simple::HTMLBatch>.
=head1 CALLING FROM THE COMMAND LINE
TODO
perl -MPod::Simple::HTML -e Pod::Simple::HTML::go Thing.pod Thing.html
=head1 CALLING FROM PERL
=head2 Minimal code
use Pod::Simple::HTML;
my $p = Pod::Simple::HTML->new;
$p->output_string(\my $html);
$p->parse_file('path/to/Module/Name.pm');
open my $out, '>', 'out.html' or die "Cannot open 'out.html': $!\n";
print $out $html;
=head2 More detailed example
use Pod::Simple::HTML;
Set the content type:
$Pod::Simple::HTML::Content_decl = q{<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" >};
my $p = Pod::Simple::HTML->new;
Include a single javascript source:
$p->html_javascript('http://abc.com/a.js');
Or insert multiple javascript source in the header
(or for that matter include anything, thought this is not recommended)
$p->html_javascript('
<script type="text/javascript" src="http://abc.com/b.js"></script>
<script type="text/javascript" src="http://abc.com/c.js"></script>');
Include a single css source in the header:
$p->html_css('/style.css');
or insert multiple css sources:
$p->html_css('
<link rel="stylesheet" type="text/css" title="pod_stylesheet" href="http://remote.server.com/jquery.css">
<link rel="stylesheet" type="text/css" title="pod_stylesheet" href="/style.css">');
Tell the parser where should the output go. In this case it will be placed in the $html variable:
my $html;
$p->output_string(\$html);
Parse and process a file with pod in it:
$p->parse_file('path/to/Module/Name.pm');
=head1 METHODS
TODO
all (most?) accessorized methods
The following variables need to be set B<before> the call to the ->new constructor.
Set the string that is included before the opening <html> tag:
$Pod::Simple::HTML::Doctype_decl = qq{<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">\n};
Set the content-type in the HTML head: (defaults to ISO-8859-1)
$Pod::Simple::HTML::Content_decl = q{<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" >};
Set the value that will be ebedded in the opening tags of F, C tags and verbatim text.
F maps to <em>, C maps to <code>, Verbatim text maps to <pre> (Computerese defaults to "")
$Pod::Simple::HTML::Computerese = ' class="some_class_name';
=head2 html_css
=head2 html_javascript
=head2 title_prefix
=head2 title_postfix
=head2 html_header_before_title
This includes everything before the <title> opening tag including the Document type
and including the opening <title> tag. The following call will set it to be a simple HTML
file:
$p->html_header_before_title('<html><head><title>');
=head2 html_h_level
Normally =head1 will become <h1>, =head2 will become <h2> etc.
Using the html_h_level method will change these levels setting the h level
of =head1 tags:
$p->html_h_level(3);
Will make sure that =head1 will become <h3> and =head2 will become <h4> etc...
=head2 index
Set it to some true value if you want to have an index (in reality a table of contents)
to be added at the top of the generated HTML.
$p->index(1);
=head2 html_header_after_title
Includes the closing tag of </title> and through the rest of the head
till the opening of the body
$p->html_header_after_title('</title>...</head><body id="my_id">');
=head2 html_footer
The very end of the document:
$p->html_footer( qq[\n<!-- end doc -->\n\n</body></html>\n] );
=head1 SUBCLASSING
Can use any of the methods described above but for further customization
one needs to override some of the methods:
package My::Pod;
use strict;
use warnings;
use base 'Pod::Simple::HTML';
# needs to return a URL string such
# http://some.other.com/page.html
# #anchor_in_the_same_file
# /internal/ref.html
sub do_pod_link {
# My::Pod object and Pod::Simple::PullParserStartToken object
my ($self, $link) = @_;
say $link->tagname; # will be L for links
say $link->attr('to'); #
say $link->attr('type'); # will be 'pod' always
say $link->attr('section');
# Links local to our web site
if ($link->tagname eq 'L' and $link->attr('type') eq 'pod') {
my $to = $link->attr('to');
if ($to =~ /^Padre::/) {
$to =~ s{::}{/}g;
return "/docs/Padre/$to.html";
}
}
# all other links are generated by the parent class
my $ret = $self->SUPER::do_pod_link($link);
return $ret;
}
1;
Meanwhile in script.pl:
use My::Pod;
my $p = My::Pod->new;
my $html;
$p->output_string(\$html);
$p->parse_file('path/to/Module/Name.pm');
open my $out, '>', 'out.html' or die;
print $out $html;
TODO
maybe override do_beginning do_end
=head1 SEE ALSO
L<Pod::Simple>, L<Pod::Simple::HTMLBatch>
TODO: a corpus of sample Pod input and HTML output? Or common
idioms?
=head1 SUPPORT
Questions or discussion about POD and Pod::Simple should be sent to the
pod-people@perl.org mail list. Send an empty email to
pod-people-subscribe@perl.org to subscribe.
This module is managed in an open GitHub repository,
L<http://github.com/theory/pod-simple/>. Feel free to fork and contribute, or
to clone L<git://github.com/theory/pod-simple.git> and send patches!
Patches against Pod::Simple are welcome. Please send bug reports to
<bug-pod-simple@rt.cpan.org>.
=head1 COPYRIGHT AND DISCLAIMERS
Copyright (c) 2002-2004 Sean M. Burke.
This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
This program is distributed in the hope that it will be useful, but
without any warranty; without even the implied warranty of
merchantability or fitness for a particular purpose.
=head1 ACKNOWLEDGEMENTS
Thanks to L<Hurricane Electric|http://he.net/> for permission to use its
L<Linux man pages online|http://man.he.net/> site for man page links.
Thanks to L<search.cpan.org|http://search.cpan.org/> for permission to use the
site for Perl module links.
=head1 AUTHOR
Pod::Simple was created by Sean M. Burke <sburke@cpan.org>.
But don't bother him, he's retired.
Pod::Simple is maintained by:
=over
=item * Allison Randal C<allison@perl.org>
=item * Hans Dieter Pearcey C<hdp@cpan.org>
=item * David E. Wheeler C<dwheeler@cpan.org>
=back
=cut
|
