/[PLies]/burst.pl
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Revision 1.7 - (show annotations)
Sat May 5 19:20:27 2001 UTC (18 years, 3 months ago) by dpavlin
Branch: MAIN
Changes since 1.6: +81 -44 lines
File MIME type: text/plain
fixed links, links now display slide titles (as they should),
relative anchors (#something) are resolved accross slides (so that
you can jump from one slide to another)

1 #!/usr/bin/perl
2 #
3 # SLies Copyright 2001 Dobrica Pavlinusic <dpavlin@rot13.org>
4 #
5 # this tool is based on SlideMaker and XLSies tool
6 # split a all.htm into slide*.htm
7 #
8 # For more information please see presentation about this tool on
9 # http://www.rot13.org/~dpavlin/presentations/XLSies_to_PLies/
10 #
11 # Copyright 1999 World Wide Web Consortium,
12 # (Massachusetts Institute of Technology, Institut
13 # National de Recherche en Informatique et en
14 # Automatique, Keio University). All Rights Reserved.
15 # This program is distributed under the W3C's
16 # Intellectual Property License. This program is
17 # distributed in the hope that it will be useful, but
18 # WITHOUT ANY WARRANTY; without even the implied
19 # warranty of MERCHANTABILITY or FITNESS FOR A
20 # PARTICULAR PURPOSE. See W3C License
21 # http://www.w3.org/Consortium/Legal/ for more details.
22 #
23 #
24 ##############################################################################
25 #
26 # slidemaker credits:
27 #
28 # Stephan Montigaud - stephan@w3.org
29 # created 970601
30 # modified by Pierre Fillault
31 # check the documentation at http://www.w3.org/Talks/YYMMsub/
32 #
33 # modified 19990505 Bert Bos: ALT text of prev/next arrows is now
34 # "prev"/"next" rather than the title of the prev/next slide; looks better
35 # in lynx.
36 #
37 # version: 4.14 - 19990719
38 # $Id: w3cburst.pl,v 1.41 1999/11/02 17:25:50 charles Exp $
39 #
40 #
41 # XLSies credits:
42 #
43 # Sami Lempinen - lempinen@iki.fi
44 # http://www.snowman.sgic.fi/ssl/xslies/
45 #
46 # Text::FastTemplate:
47 # Robert Lehr - bozzio@the-lehrs.com
48
49 use Text::FastTemplate;
50
51 ##############################################################################
52 ## default values of variables
53 ##
54
55 ## show debug output
56 my $debug=1;
57
58 ## default DOCTYPE added on the slides
59 $doctype = '<html xmlns="http://www.w3.org/TR/REC-html40">';
60
61 ## name of raw HTML file containing the slides
62 $all = 'all.htm';
63
64 ## table of content built from all.htm - also first page of the presentation
65 ## this is only the basename as we need to generate one toc for each style sheets
66 ## the main toc will not bear any more so the server can understand a request for '/'
67 ## the next ones will bear a number corresponding to the slide index
68 #$overview = 'Overview';
69 $overview = 'index';
70
71 ## name of the file containing the parameters of the presentation
72 $infos = 'infos.txt';
73
74 ## link to the logo printed on all the slides
75 $logoLink = '';
76
77 ## default location of the logo - works when slidemaker is used as a package
78 $logoFile = '';
79
80 ### localization
81 $loc_toc = "Table of contents";
82 $loc_by = "by";
83 $loc_amp = "&amp;"; # author separator
84 $loc_slide = "Slide";
85 $loc_of = "of"; # $loc_slide nr $loc_of total
86
87 ## alternate representation of the logo
88 $logoAlt = '';
89
90 ## default values set to none
91 $logoLink2 = ''; # link to a potential second reference
92 $logoFile2 = ''; # location of a second logo
93 $logoAlt2 = ''; # alternate representation of the second logo
94
95 ## default accesskeys for navigation icons used in the slides
96 $prevKey = 'P'; # accesskey for previous slide
97 $nextKey = 'N'; # accesskey for next slide
98 $tocKey = 'C'; # accesskey for table of contents
99 $styleKey = 'S'; # accesskey for changing style sheets
100
101 ## default author name
102 $author = 'Staff';
103
104 ## default presentation title
105 $talkTitle = 'Talk';
106
107 ## standard style sheets
108 $cssStandard = '../PLies/css/default.css';
109
110 ## template name
111 $template = '../PLies/default';
112
113 ## default charset use in meta tag http-equiv (undef to skip)
114 #$charset = 'ISO-8859-1';
115
116 ## default <body> tag
117 $body = '<body>';
118
119 ## number of entries on each TOC page
120 $toc_on_page = 10;
121
122 ## use progress bar
123 $progress_bar = 1;
124
125 ## content hight for each slide
126 $content_hight = "70%";
127
128 ## end of default values for the presentation
129 ##############################################################################
130
131 ## globals
132 my $last_toc_title;
133 my %page_data;
134 my %overview_data;
135
136 ##############################################################################
137 ## reading user input from $infos
138 ##
139 @PARAM = @ARGV; # we keep this for backward compatibility with an old version
140 # of the slidemaker tool
141 #when the parameters were in Makefile or make.bat
142
143 # read parameters from infos.txt and put them in @PARAM
144 if (open(INFOS, $infos)) {
145 print STDOUT "--- Reading parameters file $infos ---\n";
146 local(@file,$counter);
147 $counter = 0;
148 @file = <INFOS>;
149 @PARAM = ();
150 do {
151 if ($file[0] && $file[0] =~ /^[^#\n\r]/) {
152 $file[0] =~ s/\n//; # remove UNIX \n
153 $file[0] =~ s/\r//; # remove WINDOWS \r
154 $file[0] =~ s/ *= */=/;
155 $PARAM[$counter++] = $file[0];
156 print "$file[0]\n";
157 }
158 } while (shift(@file));
159 }
160 ## @PARAM is now a table with the user preferences for his presentation
161
162 ## process arguments
163 ## each preset variable is now re-attributed using the user preferences
164 foreach (@PARAM) {
165 my ($var,$value) = split(/ *= */,$_,2);
166 $value=~s/'/\\'/g;
167 $cmd="\$$var = \'$value\';";
168 if ($value) {
169 eval($cmd) || die "problem with eval of: $cmd";
170 } else {
171 die "no value defined for $var";
172 }
173 }
174
175 ## use charset
176
177 if ($charset) {
178 $http_equiv='<meta http-equiv="Content-type" content="text/html; charset='.$charset.'">';
179 } else {
180 $http_equiv='';
181 }
182
183 ##############################################################################
184 ## read the raw html presentation
185 ##
186
187 ## copy file in memory
188 my $sep = $/;
189 $/ = undef;
190 open(ALL, $all) || die "Error: Cannot open file: $all";
191 my $buf = <ALL>;
192 close(ALL);
193 $/ = $sep;
194
195 ## Remove comments from the raw presentation
196 ## they do not need to show up on the slides
197 $buf =~ s/<!--.*?-->//sgo;
198
199 ## the slidemaker tool assumes that each slide is self contained between 2 sets of h1 tags
200 ## if not it will generate a rather weird output
201 ## split using <h1...> and </h1...> as separator (ignores attributes!)
202 ## h1 or H1 can be used
203 @table = split(/<\/?[hH]1[^>]*>/, $buf);
204
205 ## compute the total number of slides
206 $total = $#table / 2;
207 if ($#table % 2 != 0) {
208 $total = ($#table +1)/2;
209 }
210
211 ##
212 ## raw presentation has been read successfully
213 ##############################################################################
214
215 ##############################################################################
216 ## processing the slides
217
218 print STDOUT "\n--- Processing $total slides ---\n";
219
220 ## generate the header table of content of the presentation
221 ## which is also the first page of the talk
222 &openOverview($overview);
223
224 ## start the slide count so we can number them
225 $slideCount = 1;
226
227 ## pre-load template slides using $template dir
228 Text::FastTemplate->defaults(
229 path => [ $template ]
230 );
231
232 Text::FastTemplate->preload( [
233 { file => 'slide.html', key => 'slide' },
234 { file => 'overview.html', key => 'overview' },
235 ]);
236
237 ## unroll relative anchors (#something) into links with slides
238
239 my %anchor_on_slide;
240
241 ## step 1: record anchors
242 for($i=0; $i<$total; $i++) {
243 my $tmp = $table[($i*2)];
244 while ($tmp =~ s,<a +name="*([^>"]+)"*>,,i) {
245 $anchor_on_slide{$1}=($i+1);
246 print "\tslide ",($i+1)," anchor: $1\n" if ($debug);
247 }
248 }
249
250 ## step 2: fix links
251 for($i=0; $i<$total; $i++) {
252 foreach (keys %anchor_on_slide) {
253 $table[($i*2)] =~ s,href="*#$_"*>,href="slide$anchor_on_slide{$_}\.html#$_">,gi;
254 }
255 }
256
257 ## @table is the array containing each slide with its title
258 ## for each slide to be generated
259 ## we delete each slide and its title when generated
260 ## so that the current slide and its title are always at $table[0] (for the title)
261 ## and $table[1] (for the slide content)
262
263 undef $prev_title;
264 undef $next_title;
265
266 do {
267
268 ## get rid of the first element contained by the raw presentation array
269 shift(@table);
270 ## then $table[0] is the title of the slide to be generated
271 $table[0] =~ s/\n+/ /g; ## replace return character by a white space
272 $table[0] =~ s/\r+/ /g; ## replace lf character by a white space
273 $table[0] =~ s/ +/ /g; ## concatenate several white spaces to only one
274 $table[0] =~ s/^ //; ## remove all the starting white spaces in the title
275 $table[0] =~ s/ $//; ## remove all trailing white spaces in the title
276 ## $slideTitle preserves link(s) in the title
277 $slideTitle = $table[0];
278 ## need to check if the title contains any anchor
279 ## if so it needs to be removed
280 ## because the title is being used in the table of content to link to the corresponding slide
281 $table[0] =~ s/(.*)<A[^>]*>(.*)<\/A>(.*)/$1$2$3/i;
282
283 ## grab next slide title $table[2] (if there's a next slide)
284 ## to be able to use in the 'next' navigation button
285 ## keep in mind that $table[1] contains the slide corresponding to the title $table[0]
286 if ($table[2]) {
287 $next_title= $table[2];
288 ## remove any anchor from the next slide title
289 $next_title =~ s/(.*)<A[^>]*>(.*)<\/A>(.*)/$1$2$3/i;
290 }
291
292 ## the current slide content is stored $table[1]
293 ## there is an attempt to make sure it's clean HTML
294 ## Pierre Fillault's note: use same piece of as used in http://www.w3.org/Web/Tools/CvsCommitScripting
295 ## to make use of the validation service
296 $slideContent = &clean_html($table[1]) ;
297
298 ## extract slide Sub Title <h2>
299 undef $slideSubTitle;
300 if ($slideContent =~ s/<[hH]2[^>]*>([^<]+)<\/[hH]2[^>]*>//) {
301 $slideSubTitle=$1;
302 }
303
304 ## add the title of the current slide to the table of content
305 &addTitle($slideTitle,$slideSubTitle,$slideCount);
306
307 ## generate the current slide
308 ## parameters are:
309 ## title of the slide, its content, the slide number, the title of the previous slide and the title of the next slide
310 &createSlide($slideTitle,$slideSubTitle,$slideContent ,$slideCount++,$prev_title,$next_title);
311
312 ## save the title of the previous slide to be displayed in the 'previous' navigation button
313 $prev_title="$table[0]";
314 }
315 ## process the next slide
316 while (shift(@table));
317
318 ## close the table of content
319 &closeOverview;
320
321 ## generate more toc with the all the style sheets
322 ## as there's no way of loading a style sheet
323 ## except dynamically, but that would be slow
324 ## and would not work on all platforms (ie would fail on Joe's laptop)
325 &generateTOC;
326
327
328 print STDOUT "--- Finished ---\n";
329 exit 0;
330 ##
331 ## end of the slidemaker main program
332 ##############################################################################
333
334
335 ##############################################################################
336 ## generate the header of the table of content
337
338 sub openOverview
339 {
340 ## open the file to write to
341 open(FOO, ">$_[0].html") || die "can't open $_[0].html: $!";
342
343 ## the style sheet used in the table of content is
344 $stylelink = "";
345 ## here is the standard style sheet
346 $stylelink .= "<link href=\"$cssStandard\" rel=\"stylesheet\" type=\"text/css\" title=\"Talk\" media=\"screen\">";
347
348 %overview_data = (
349 doctype => $doctype,
350 title => $title,
351 http_equiv => $http_equiv,
352 stylelink => $stylelink,
353 body => $body,
354
355 logoLink => $logoLink,
356 logoFile => $logoFile,
357 logoAlt => $logoAlt,
358 logoLink2 => $logoLink2,
359 logoFile2 => $logoFile2,
360 logoAlt2 => $logoAlt2,
361
362 talkTitle => $talkTitle,
363 talkSubTitle => $talkSubTitle,
364
365 content_hight => $content_hight,
366
367 author => $author,
368 authorUrl => $authorUrl,
369 author2 => $author2,
370 authorUrl2 => $authorUrl2,
371
372 date => $date,
373
374 toc => $loc_toc,
375 );
376
377 }
378 ##
379 ## the beginning of the table of content has been generated and saved
380 ##############################################################################
381
382 ##############################################################################
383 ## generate the footer of the table of content
384
385 sub closeOverview
386 {
387 $overview_data{slide_html} = make_progress_bar(0,$total);
388 $overview_data{toc_entries} = [ @toc_entries ];
389
390 my $page= new Text::FastTemplate key => 'overview';
391 print FOO $page->output( \%overview_data );
392
393 close(FOO);
394 }
395 ##
396 ## the toc has been completed and saved
397 ##############################################################################
398
399 ##############################################################################
400 ## add an item in the toc
401
402 sub addTitle
403 {
404 my ($title,$subtitle,$nr) = @_;
405 $title =~ s/\r//ig; # remove the windows CR+LF
406 $title =~ s/<[^>]+>//g;
407
408 if (! $title) {
409 return 1;
410 }
411
412 # split TOC entries to multiple pages
413
414 if ($nr % $toc_on_page == 0) {
415 my $toc_nr=int($nr/$toc_on_page);
416
417 %item = (
418 pre_html => $pre_ul,
419 accesskey => " ", # space
420 href => "index-toc$toc_nr.html",
421 title => "...",
422 post_html => $post_ul,
423 more => 1, # use style for more pages link (...)
424 )
425 # push @toc_entries, %item;
426
427 &closeOverview;
428 &openOverview("$overview-toc$toc_nr");
429 $last_toc_title='';
430 }
431
432 $pre_ul=$post_ul='';
433 if ($last_toc_title eq $title) {
434 $title = $subtitle;
435 $pre_ul='<ul>';
436 $post_ul='</ul>';
437 } else {
438 $last_toc_title=$title;
439 }
440
441 # add accesskey for first 9 slides (`1' - `9') or just for first
442 # TOC page, and tabindex for all slides
443 if ($nr < 10 && $nr < $toc_on_page) {
444 $item = {
445 pre_html => $pre_ul,
446 accesskey => "$nr",
447 tabindex => "$nr",
448 href => "slide$nr.html",
449 title => $title,
450 post_html => $post_ul,
451 more => 0,
452 };
453 push @toc_entries,$item;
454 } else {
455 %item = (
456 pre_html => $pre_ul,
457 tabindex => "$nr",
458 href => "slide$nr.html",
459 title => $title,
460 post_html => $post_ul,
461 )
462 # push @toc_entries,\%item;
463 }
464 }
465 ##
466 ##############################################################################
467
468 ##############################################################################
469 ## generate the current slide
470
471 sub createSlide
472 {
473
474 # parameters are respectively the slide title, its content,
475 # its number, the next slide title and the previous slide title
476
477 my ($title,$subtitle,$content,$nr,$prev_title,$next_title) = @_;
478
479 if (! $title) {
480 return 1;
481 }
482
483 # work the slide title, the previous and next titles
484 chomp $title;
485 $title =~ s/\r//ig; # remove the windows CR+LF
486 $next_title =~ s/\r//ig;
487 $prev_title =~ s/\r//ig;
488
489 # Remove any tags from the prev & next titles
490 $next_title =~ s/<[^>]+>//g;
491 $prev_title =~ s/<[^>]+>//g;
492 $title =~ s/<[^>]+>//g;
493
494 # Replace double quotes
495 # $title =~ s/"/&#34;/g;
496 $next_title =~ s/"/&#34;/g;
497 $prev_title =~ s/"/&#34;/g;
498
499 # work the slide content
500 $content =~ s/<\/body>//i; # remove if any
501 $content =~ s/<\/html>//i; # remove if any
502
503 $status = sprintf "Slide %2d: %s %s\n", $nr, $title, $subtitle;
504 $status =~ s/<[^>]+>//g;
505 print STDOUT $status;
506
507 &verify_html($content); # check the html
508
509 ## write to the slide
510 open(SLIDE, ">slide$nr.html") || die "can't save slide$nr.html: $!";
511
512 my $toc_link = "$overview\.html";
513
514 ## initialization of the navigation links
515 my $next_link = "";
516 my $prev_link = "";
517
518 if ($nr>1) {
519 $prev_link = "slide".($nr-1).".html";
520 # } else {
521 # ## add a link back to the toc for the first slide --CMN 19991102
522 # $prev_link = "$overview\.html";
523 }
524
525 if ($nr != $total) {
526 $next_link = "slide".($nr+1).".html";
527 }
528
529 $stylelink = "";
530 # here is the standard style sheet
531 $stylelink .= "<link href=\"$cssStandard\" rel=\"stylesheet\" type=\"text/css\" title=\"Talk\">";
532
533 my $slide_html=make_progress_bar($nr,$total);
534
535 %page_data = (
536 doctype => $doctype,
537 talkTitle => $talkTitle,
538 title => $title,
539 subtitle => $subtitle,
540 http_equiv => $http_equiv,
541 stylelink => $stylelink,
542 body => $body,
543
544 logoLink => $logoLink,
545 logoFile => $logoFile,
546 logoAlt => $logoAlt,
547 logoLink2 => $logoLink2,
548 logoFile2 => $logoFile2,
549 logoAlt2 => $logoAlt2,
550
551
552 content_hight => $content_hight,
553 content => $content,
554
555 prev_link => $prev_link,
556 toc_link => $toc_link,
557 next_link => $next_link,
558 prev_title => $prev_title,
559 next_title => $next_title,
560
561 author => $author,
562 authorUrl => $authorUrl,
563 author2 => $author2,
564 authorUrl2 => $authorUrl2,
565
566 date => $date,
567
568 slide_html => $slide_html,
569
570 );
571
572 my $page= new Text::FastTemplate key => 'slide';
573 print SLIDE $page->output( \%page_data );
574
575 close(SLIDE);
576 return 0;
577 }
578
579 ##############################################################################
580 ## generate all the toc of contents needed for each css choosen by the user
581 ## the default toc is not numbered so it can be served by a request to '/'
582 ## (ie it remains Overview.html whereas the other toc are called Overview_#.html)
583
584 sub generateTOC {
585
586 ## read the general toc
587 open(FOO, "<$overview.html");
588 @TOC = <FOO>;
589 close(FOO);
590 $toc = "@TOC";
591
592 ## for each user CSS file
593 ## starting after the default css
594 for ($css=1;$css<$nbCssStandard;$css++) {
595
596 ## create new TOC
597 $newTOC = $toc;
598
599 ## the links on the toc need also to be modified
600 ## to link to the correct slides
601 $newTOC =~ s/<a accesskey=\"(\d)\" tabindex=\"(\d+)\" href=\"slide(\d+)-\d+\.html\">/<a accesskey=\"$1\" tabindex=\"$2\" href=\"slide$3-$css\.html">/ig;
602 $newTOC =~ s/<a tabindex=\"(\d+)\" href=\"slide(\d+)-\d+\.html\">/<a tabindex=\"$1\" href=\"slide$2-$css\.html">/ig;
603
604 ## write to new TOC
605 $outfile = $overview."-".$css.".html";
606 open(OUT, ">$outfile");
607 print OUT $newTOC;
608 close(OUT)
609 }
610
611
612 }
613
614 ##############################################################################
615 # check that the html of the slide
616 # is correct (ALT tags, ...)
617 # This procedure produces only warning
618 sub verify_html {
619
620 if ($_[0] =~ /<img([^>]*)>/im) {
621 if (!($1 =~ /ALT=/im)) {
622 print STDOUT "WARNING: <IMG> without ALT\n";
623 print STDOUT " <IMG$1>\n" ;
624 }
625 }
626 }
627
628 ##############################################################################
629 # clean the html of the slide
630 # remove all <div class="comment">blabla</div>
631 sub clean_html {
632 $_[0] =~ s/<div\s+class\s*=\s*(?:comment[\s>]|\"comment\").*?<\/div>//igs;
633 return $_[0];
634 }
635
636 ##############################################################################
637 # make transparent 1x1 gif (for layout tricks)
638 sub make_dotgif {
639 @dot_gif=(71,73,70,56,57,97,1,0,1,0,128,0,0,192,192,192,0,0,0,33,
640 249,4,1,0,0,0,0,44,0,0,0,0,1,0,1,0,0,2,2,68,1,0,59);
641 open(GIF,"> $_[0]") || die "can't write gif $_[0]: $!";
642 my $dotgif;
643 foreach (@dot_gif) {
644 $dotgif.=chr($_);
645 }
646 print GIF $dotgif;
647 close(GIF);
648 }
649
650 ##############################################################################
651 # make slide progress bar
652 sub make_progress_bar {
653 my ($nr,$total) = @_;
654
655 my $pcnt_done=int($nr*100/$total);
656 my $pcnt_left=100-$pcnt_done;
657
658 if ($progress_bar) {
659 my $l=$r="&nbsp;";
660 my $t="$nr of $total";
661 if ($pcnt_done > 50) {
662 $l=$t;
663 } else {
664 $r=$t;
665 }
666 $html='<table border="0" width="50%" cellpadding="0" cellspacing="0" align="right"><tr><td width="'.$pcnt_done.'%" class="pcnt-done">'.$l.'</td><td width="'.$pcnt_left.'%" class="pcnt-left">'.$r.'</td></tr></table>';
667 } else {
668 $html="$loc_slide $nr $loc_of $total";
669 }
670
671 return $html;
672 }
673

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