/[PLies]/burst.pl
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Revision 1.1 - (hide annotations)
Tue Apr 17 08:35:10 2001 UTC (18 years, 4 months ago) by dpavlin
Branch: MAIN
Branch point for: DbP
File MIME type: text/plain
Initial revision

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

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