/[PLies]/burst.pl
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Revision 1.3 - (hide annotations)
Tue Apr 17 13:40:36 2001 UTC (18 years, 2 months ago) by dpavlin
Branch: MAIN
Changes since 1.2: +3 -4 lines
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cosmetic changes

1 dpavlin 1.1 #!/usr/local/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     ##############################################################################
47     ## default values of variables
48     ##
49    
50     ## default DOCTYPE added on the slides
51     $doctype = '<html xmlns="http://www.w3.org/TR/REC-html40">';
52    
53     ## name of raw HTML file containing the slides
54     $all = 'all.htm';
55    
56     ## table of content built from all.htm - also first page of the presentation
57     ## this is only the basename as we need to generate one toc for each style sheets
58     ## the main toc will not bear any more so the server can understand a request for '/'
59     ## the next ones will bear a number corresponding to the slide index
60     #$overview = 'Overview';
61     $overview = 'index';
62    
63     ## name of the file containing the parameters of the presentation
64     $infos = 'infos.txt';
65    
66     ## link to the logo printed on all the slides
67     $logoLink = '';
68    
69     ## default location of the logo - works when slidemaker is used as a package
70     $logoFile = '';
71    
72     ### localization
73     $loc_toc = "Table of contents";
74     $loc_by = "by";
75     $loc_amp = "&amp;"; # author separator
76     $loc_slide = "Slide";
77     $loc_of = "of"; # $loc_slide nr $loc_of total
78    
79     ## alternate representation of the logo
80     $logoAlt = '';
81    
82     ## default values set to none
83     $logoLink2 = ''; # link to a potential second reference
84     $logoFile2 = ''; # location of a second logo
85     $logoAlt2 = ''; # alternate representation of the second logo
86    
87     ## default accesskeys for navigation icons used in the slides
88     $prevKey = 'P'; # accesskey for previous slide
89     $nextKey = 'N'; # accesskey for next slide
90     $tocKey = 'C'; # accesskey for table of contents
91     $styleKey = 'S'; # accesskey for changing style sheets
92    
93     ## default author name
94     $author = 'Staff';
95    
96     ## default presentation title
97     $talkTitle = 'Talk';
98    
99     ## standard style sheets
100     $cssStandard = '../PLies/css/default.css';
101    
102     ## default charset use in meta tag http-equiv (undef to skip)
103     #$charset = 'ISO-8859-1';
104    
105     ## default <body> tag
106     $body = '<body>';
107    
108     ## number of entries on each TOC page
109     $toc_on_page = 10;
110    
111     ## use progress bar
112     $progress_bar = 1;
113    
114 dpavlin 1.2 ## content hight for each slide
115     $content_hight = "70%";
116    
117 dpavlin 1.1 ## end of default values for the presentation
118     ##############################################################################
119    
120     ## globals
121     my $logo_html;
122     my $date_html;
123     my $last_toc_title;
124    
125     ##############################################################################
126     ## reading user input from $infos
127     ##
128     @PARAM = @ARGV; # we keep this for backward compatibility with an old version
129     # of the slidemaker tool
130     #when the parameters were in Makefile or make.bat
131    
132     # read parameters from infos.txt and put them in @PARAM
133     if (open(INFOS, $infos)) {
134     print STDOUT "--- Reading parameters file $infos ---\n";
135     local(@file,$counter);
136     $counter = 0;
137     @file = <INFOS>;
138     @PARAM = ();
139     do {
140     if ($file[0] && $file[0] =~ /^[^#\n\r]/) {
141     $file[0] =~ s/\n//; # remove UNIX \n
142     $file[0] =~ s/\r//; # remove WINDOWS \r
143     $file[0] =~ s/ *= */=/;
144     $PARAM[$counter++] = $file[0];
145     print "$file[0]\n";
146     }
147     } while (shift(@file));
148     }
149     ## @PARAM is now a table with the user preferences for his presentation
150    
151     ## process arguments
152     ## each preset variable is now re-attributed using the user preferences
153     foreach (@PARAM) {
154     @_ = split(/ *= */,$_,2);
155     $cmd="\$$_[0] = \'$_[1]\';";
156     if (length $_[1] != 0) {
157     eval($cmd);
158     }
159     }
160    
161     ## use charset
162    
163     if ($charset) {
164     $http_equiv='<meta http-equiv="Content-type" content="text/html; charset='.$charset.'">';
165     } else {
166     $http_equiv='';
167     }
168    
169    
170     ## build an html string for the author variable
171     ## containing the presentation author name linked to
172     ## a location of his choice
173     if ($authorUrl) {
174     $author = "<a href=\"$authorUrl\">$author</a>";
175     }
176    
177     ## same string is built if there is a second author for the presentation
178     if ($author2Url) {
179 dpavlin 1.3 $author2 = "<a href=\"$author2Url\">$author2</a>";
180     }
181     if ($author2) {
182 dpavlin 1.1 $author2 = "<br>$author2";
183     }
184    
185     ##############################################################################
186     ## read the raw html presentation
187     ##
188    
189     ## copy file in memory
190     my $sep = $/;
191     $/ = undef;
192     if (!open(ALL, $all)) {
193     print "Error: Cannot open file: $all\n";
194     exit 0;
195     }
196     my $buf = <ALL>;
197     close(ALL);
198     $/ = $sep;
199    
200     ## Remove comments from the raw presentation
201     ## they do not need to show up on the slides
202     $buf =~ s/<!--.*?-->//sgo;
203    
204     ## the slidemaker tool assumes that each slide is self contained between 2 sets of h1 tags
205     ## if not it will generate a rather weird output
206     ## split using <h1...> and </h1...> as separator (ignores attributes!)
207     ## h1 or H1 can be used
208     @table = split(/<\/?[hH]1[^>]*>/, $buf);
209    
210     ## compute the total number of slides
211     $total = $#table / 2;
212     if ($#table % 2 != 0) {
213     $total = ($#table +1)/2;
214     }
215    
216     ##
217     ## raw presentation has been read successfully
218     ##############################################################################
219    
220     ##############################################################################
221     ## processing the slides
222    
223     print STDOUT "\n--- Processing $total slides ---\n";
224    
225     ## generate the header table of content of the presentation
226     ## which is also the first page of the talk
227     &openOverview($overview);
228    
229     ## start the slide count so we can number them
230     $slideCount = 1;
231    
232    
233     ## @table is the array containing each slide with its title
234     ## for each slide to be generated
235     ## we delete each slide and its title when generated
236     ## so that the current slide and its title are always at $table[0] (for the title)
237     ## and $table[1] (for the slide content)
238     do {
239    
240     ## get rid of the first element contained by the raw presentation array
241     shift(@table);
242     ## then $table[0] is the title of the slide to be generated
243     $table[0] =~ s/\n+/ /g; ## replace return character by a white space
244     $table[0] =~ s/\r+/ /g; ## replace lf character by a white space
245     $table[0] =~ s/ +/ /g; ## concatenate several white spaces to only one
246     $table[0] =~ s/^ //; ## remove all the starting white spaces in the title
247     $table[0] =~ s/ $//; ## remove all trailing white spaces in the title
248     ## $slideTitle preserves link(s) in the title
249     $slideTitle = $table[0];
250     ## need to check if the title contains any anchor
251     ## if so it needs to be removed
252     ## because the title is being used in the table of content to link to the corresponding slide
253     $table[0] =~ s/(.*)<A[^>]*>(.*)<\/A>(.*)/$1$2$3/i;
254    
255     ## grab next slide title $table[2] (if there's a next slide)
256     ## to be able to use in the 'next' navigation button
257     ## keep in mind that $table[1] contains the slide corresponding to the title $table[0]
258     $next_slide_title = $table[2] if $table[2];
259     ## remove any anchor from the next slide title
260     $next_slide_title =~ s/(.*)<A[^>]*>(.*)<\/A>(.*)/$1$2$3/i;
261    
262     ## the current slide content is stored $table[1]
263     ## there is an attempt to make sure it's clean HTML
264     ## Pierre Fillault's note: use same piece of as used in http://www.w3.org/Web/Tools/CvsCommitScripting
265     ## to make use of the validation service
266     $slideContent = &clean_html($table[1]) ;
267    
268     ## extract slide Sub Title <h2>
269     undef $slideSubTitle;
270     if ($slideContent =~ s/<[hH]2[^>]*>([^<]+)<\/[hH]2[^>]*>//) {
271     $slideSubTitle=$1;
272     }
273    
274     ## add the title of the current slide to the table of content
275     &addTitle($slideTitle,$slideSubTitle,$slideCount);
276    
277     ## generate the current slide
278     ## parameters are:
279     ## title of the slide, its content, the slide number, the title of the previous slide and the title of the next slide
280     &createSlide($slideTitle,$slideSubTitle,$slideContent ,$slideCount++,$previous_slide_title,$next_slide_title);
281    
282     ## save the title of the previous slide to be displayed in the 'previous' navigation button
283     $previous_slide_title="$table[0]";
284     }
285     ## process the next slide
286     while (shift(@table));
287    
288     ## close the table of content
289     &closeOverview;
290    
291     ## generate more toc with the all the style sheets
292     ## as there's no way of loading a style sheet
293     ## except dynamically, but that would be slow
294     ## and would not work on all platforms (ie would fail on Joe's laptop)
295     &generateTOC;
296    
297    
298     print STDOUT "--- Finished ---\n";
299     exit 0;
300     ##
301     ## end of the slidemaker main program
302     ##############################################################################
303    
304    
305     ##############################################################################
306     ## generate the header of the table of content
307    
308     sub openOverview
309     {
310     ## open the file to write to
311     open(FOO, ">$_[0].html") || die "can't open $_[0].html: $!";
312    
313     ## the style sheet used in the table of content is
314     $stylelink = "";
315     ## here is the standard style sheet
316     $stylelink .= "<link href=\"$cssStandard\" rel=\"stylesheet\" type=\"text/css\" title=\"Talk\" media=\"screen\">";
317    
318     if ($logoFile) {
319     $logo_html="<a href=\"$logoLink\"><img src=\"$logoFile\" alt=\"$logoAlt\" border=\"0\"></a>";
320     }
321    
322     if ($logoFile2) {
323     $logo_html.="<a href=\"$logoLink2\"><img src=\"$logoFile2\" alt=\"$logoAlt2\" border=\"0\"></a>";
324     }
325    
326     $title_html="<h1>$talkTitle</h1>";
327     if (length $talkSubTitle != 0) {
328     $title_html.="<h2>$talkSubTitle</h2>";
329     }
330    
331     if (length $date != 0) {
332     $date_html="($date)";
333     }
334    
335     print FOO <<END;
336     $doctype
337     <head>
338     <title>$talkTitle - $loc_toc</title>
339     $http_equiv
340     $stylelink
341     </head>
342     $body
343     <table height="100%" width="100%">
344     <tr>
345     <td class="header-first" valign="top">
346     <table width="100%" border="0">
347     <tr>
348     <td class="cell-logo">$logo_html</td>
349     <td class="cell-heading">$title_html</td>
350     </tr>
351     </table>
352     </td>
353     </tr>
354     <tr>
355 dpavlin 1.2 <td height="$content_hight" class="body" valign="top">
356 dpavlin 1.1 <div class="body">
357     <h3>$loc_toc</h3>
358     <ul>
359     END
360    
361     }
362     ##
363     ## the beginning of the table of content has been generated and saved
364     ##############################################################################
365    
366     ##############################################################################
367     ## generate the footer of the table of content
368    
369     sub closeOverview
370     {
371     my $slide_html=make_progress_bar(0,$total);
372     print FOO <<END;
373     </ul>
374     </div>
375     </td>
376     </tr>
377     <tr>
378     <td class="footer">
379     <table border="0" width="100%">
380     <tr>
381     <td width="33%" class="footer-info">
382     <p>
383     <i>$talkTitle</i>
384     <br>$author $date_html
385     </p>
386     </td><td width="33%" class="footer-nav">
387     <table border="0">
388     <tr>
389     <td>
390     [ <a href="slide1.html">On with the show</a> ]
391     </td>
392     </tr>
393     </table>
394     </td><td width="33%" class="footer-count">
395     $slide_html
396     $author2</td>
397     </tr>
398     </table>
399     </td>
400     </tr>
401     </table>
402     </body>
403     </html>
404     END
405    
406     close(FOO);
407     }
408     ##
409     ## the toc has been completed and saved
410     ##############################################################################
411    
412     ##############################################################################
413     ## add an item in the toc
414    
415     sub addTitle
416     {
417     my ($title,$subtitle,$nr) = @_;
418     $title =~ s/\r//ig; # remove the windows CR+LF
419     $title =~ s/<[^>]+>//g;
420    
421     if (! $title) {
422     return 1;
423     }
424    
425     # split TOC entries to multiple pages
426    
427     if ($nr % $toc_on_page == 0) {
428     my $toc_nr=int($nr/$toc_on_page);
429    
430     print FOO <<END;
431     <br><small><a accesskey=" " tabindex=" " href="index-toc$toc_nr.html">...</a></small></br>
432     END
433     &closeOverview;
434     &openOverview("$overview-toc$toc_nr");
435     $last_toc_title='';
436     }
437    
438     $ul1=$ul2='';
439     if ($last_toc_title eq $title) {
440     $title = $subtitle;
441     $ul1='<ul>';
442     $ul2='</ul>';
443     } else {
444     $last_toc_title=$title;
445     }
446    
447     # add accesskey for first 9 slides (`1' - `9') or just for first
448     # TOC page, and tabindex for all slides
449     if ($nr < 10 && $nr < $toc_on_page) {
450     print FOO <<END;
451     $ul1<li><a accesskey="$nr" tabindex="$nr" href="slide$nr.html">$title</a></li>$ul2
452     END
453     } else {
454     print FOO <<END;
455     $ul1<li><a tabindex="$nr" href="slide$nr.html">$title</a></li>$ul2
456     END
457     }
458     }
459     ##
460     ##############################################################################
461    
462     ##############################################################################
463     ## generate the current slide
464    
465     sub createSlide
466     {
467    
468     # parameters are respectively the slide title, its content,
469     # its number, the next slide title and the previous slide title
470    
471     my ($title,$subtitle,$content,$nr,$next_title,$prev_title) = @_;
472    
473     if (! $title) {
474     return 1;
475     }
476    
477     # work the slide title, the previous and next titles
478     chomp $title;
479     $title =~ s/\r//ig; # remove the windows CR+LF
480     $next_title =~ s/\r//ig;
481     $prev_title =~ s/\r//ig;
482    
483     # Remove any tags from the prev & next titles
484     $next_title =~ s/<[^>]+>//g;
485     $prev_title =~ s/<[^>]+>//g;
486     $title =~ s/<[^>]+>//g;
487    
488     # Replace double quotes
489     # $title =~ s/"/&#34;/g;
490     $next_title =~ s/"/&#34;/g;
491     $prev_title =~ s/"/&#34;/g;
492    
493     # work the slide content
494     $content =~ s/<\/body>//i; # remove if any
495     $content =~ s/<\/html>//i; # remove if any
496    
497     $status = sprintf "Slide %2d: %s %s\n", $nr, $title, $subtitle;
498     $status =~ s/<[^>]+>//g;
499     print STDOUT $status;
500    
501     &verify_html($content); # check the html
502    
503     ## write to the slide
504     open(SLIDE, ">slide$nr.html") || die "can't save slide$nr.html: $!";
505    
506     my $toclink = "[ <a href=\"$overview\.html\" title=\"Contents\">Contents</a> ]";
507    
508     ## initialization of the navigation links
509     my $nextlink = "";
510     my $prevlink = "";
511    
512     if ($nr>1) {
513     $prevlink = "<a href=\"slide".($nr-1).".html\" title=\"Previous\">&lt;&lt;</a>";
514     # } else {
515     # ## add a link back to the toc for the first slide --CMN 19991102
516     # $prevlink = "<a href=\"$overview\.html\" title=\"Previous\">&lt;&lt;</a>";
517     }
518    
519     if ($nr != $total) {
520     $nextlink = "<a href=\"slide".($nr+1).".html\" title=\"Next\">&gt;&gt;</a>";
521     }
522    
523     $stylelink = "";
524     # here is the standard style sheet
525     $stylelink .= "<link href=\"$cssStandard\" rel=\"stylesheet\" type=\"text/css\" title=\"Talk\">";
526    
527     $title_html="<h1>$title</h1>";
528     if ($subtitle) {
529     $title_html.="<h2>$subtitle</h2>";
530     }
531    
532     my $slide_html=make_progress_bar($nr,$total);
533    
534     print SLIDE <<END;
535     $doctype
536     <head>
537     <title>$talkTitle - $title</title>
538     $http_equiv
539     $stylelink
540     </head>
541     $body
542     <table height="100%" width="100%">
543     <tr>
544     <td class="header-first" valign="top">
545     <table width="100%" border="0">
546     <tr>
547     <td class="cell-logo">$logo_html</td>
548     <td class="cell-heading">$title_html</td>
549     </tr>
550     </table>
551     </td>
552     </tr>
553     <tr>
554 dpavlin 1.2 <td height="$content_hight" class="body" valign="top">
555 dpavlin 1.1 <div class="body">
556     $content
557     </div>
558     </td>
559     </tr>
560     <tr>
561     <td class="footer">
562     <table border="0" width="100%">
563     <tr>
564     <td width="33%" class="footer-info">
565     <p>
566     <i>$talkTitle</i>
567     <br>$author $date_html
568     </p>
569     </td><td width="33%" class="footer-nav">
570     <table border="0">
571     <tr>
572     <td>
573     $prevlink
574     $toclink
575     $nextlink
576     </td>
577     </tr>
578     </table>
579     </td><td width="33%" class="footer-count">
580     $slide_html
581     $author2</td>
582     </tr>
583     </table>
584     </td>
585     </tr>
586     </table>
587     </body>
588     </html>
589     END
590    
591     close(SLIDE);
592     return 0;
593     }
594    
595     ##############################################################################
596     ## generate all the toc of contents needed for each css choosen by the user
597     ## the default toc is not numbered so it can be served by a request to '/'
598     ## (ie it remains Overview.html whereas the other toc are called Overview_#.html)
599    
600     sub generateTOC {
601    
602     ## read the general toc
603     open(FOO, "<$overview.html");
604     @TOC = <FOO>;
605     close(FOO);
606     $toc = "@TOC";
607    
608     ## for each user CSS file
609     ## starting after the default css
610     for ($css=1;$css<$nbCssStandard;$css++) {
611    
612     ## create new TOC
613     $newTOC = $toc;
614    
615     ## the links on the toc need also to be modified
616     ## to link to the correct slides
617     $newTOC =~ s/<a accesskey=\"(\d)\" tabindex=\"(\d+)\" href=\"slide(\d+)-\d+\.html\">/<a accesskey=\"$1\" tabindex=\"$2\" href=\"slide$3-$css\.html">/ig;
618     $newTOC =~ s/<a tabindex=\"(\d+)\" href=\"slide(\d+)-\d+\.html\">/<a tabindex=\"$1\" href=\"slide$2-$css\.html">/ig;
619    
620     ## write to new TOC
621     $outfile = $overview."-".$css.".html";
622     open(OUT, ">$outfile");
623     print OUT $newTOC;
624     close(OUT)
625     }
626    
627    
628     }
629    
630     ##############################################################################
631     # check that the html of the slide
632     # is correct (ALT tags, ...)
633     # This procedure produces only warning
634     sub verify_html {
635    
636     if ($_[0] =~ /<img([^>]*)>/im) {
637     if (!($1 =~ /ALT=/im)) {
638     print STDOUT "WARNING: <IMG> without ALT\n";
639     print STDOUT " <IMG$1>\n" ;
640     }
641     }
642     }
643    
644     ##############################################################################
645     # clean the html of the slide
646     # remove all <div class="comment">blabla</div>
647     sub clean_html {
648     $_[0] =~ s/<div\s+class\s*=\s*(?:comment[\s>]|\"comment\").*?<\/div>//igs;
649     return $_[0];
650     }
651    
652     ##############################################################################
653     # make transparent 1x1 gif (for layout tricks)
654     sub make_dotgif {
655     @dot_gif=(71,73,70,56,57,97,1,0,1,0,128,0,0,192,192,192,0,0,0,33,
656     249,4,1,0,0,0,0,44,0,0,0,0,1,0,1,0,0,2,2,68,1,0,59);
657     open(GIF,"> $_[0]") || die "can't write gif $_[0]: $!";
658     my $dotgif;
659     foreach (@dot_gif) {
660     $dotgif.=chr($_);
661     }
662     print GIF $dotgif;
663     close(GIF);
664     }
665    
666     ##############################################################################
667     # make slide progress bar
668     sub make_progress_bar {
669     my ($nr,$total) = @_;
670    
671     my $pcnt_done=int($nr*100/$total);
672     my $pcnt_left=100-$pcnt_done;
673    
674     if ($progress_bar) {
675     my $l=$r="&nbsp;";
676     my $t="$nr of $total";
677     if ($pcnt_done > 50) {
678     $l=$t;
679     } else {
680     $r=$t;
681     }
682     $html='<table border="0" width="30%" cellpadding="0" cellspacing="0" align="right"><tr><td width="'.$pcnt_done.'%" class="pcnt-done">'.$l.'</td><td width="'.$pcnt_left.'%" class="pcnt-left">'.$r.'</td></tr></table>';
683     } else {
684     $html="$loc_slide $nr $loc_of $total";
685     }
686    
687     return $html;
688     }
689    

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