/[PLies]/burst.pl
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Revision 1.2 - (hide annotations)
Tue Apr 17 09:47:30 2001 UTC (18 years, 2 months ago) by dpavlin
Branch: MAIN
Changes since 1.1: +5 -2 lines
File MIME type: text/plain
make content hight in slide selectable

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 dpavlin 1.2 ## content hight for each slide
117     $content_hight = "70%";
118    
119 dpavlin 1.1 ## end of default values for the presentation
120     ##############################################################################
121    
122     ## globals
123     my $logo_html;
124     my $date_html;
125     my $last_toc_title;
126    
127     ##############################################################################
128     ## reading user input from $infos
129     ##
130     @PARAM = @ARGV; # we keep this for backward compatibility with an old version
131     # of the slidemaker tool
132     #when the parameters were in Makefile or make.bat
133    
134     # read parameters from infos.txt and put them in @PARAM
135     if (open(INFOS, $infos)) {
136     print STDOUT "--- Reading parameters file $infos ---\n";
137     local(@file,$counter);
138     $counter = 0;
139     @file = <INFOS>;
140     @PARAM = ();
141     do {
142     if ($file[0] && $file[0] =~ /^[^#\n\r]/) {
143     $file[0] =~ s/\n//; # remove UNIX \n
144     $file[0] =~ s/\r//; # remove WINDOWS \r
145     $file[0] =~ s/ *= */=/;
146     $PARAM[$counter++] = $file[0];
147     print "$file[0]\n";
148     }
149     } while (shift(@file));
150     }
151     ## @PARAM is now a table with the user preferences for his presentation
152    
153     ## process arguments
154     ## each preset variable is now re-attributed using the user preferences
155     foreach (@PARAM) {
156     @_ = split(/ *= */,$_,2);
157     $cmd="\$$_[0] = \'$_[1]\';";
158     if (length $_[1] != 0) {
159     eval($cmd);
160     }
161     }
162    
163     ## use charset
164    
165     if ($charset) {
166     $http_equiv='<meta http-equiv="Content-type" content="text/html; charset='.$charset.'">';
167     } else {
168     $http_equiv='';
169     }
170    
171    
172     ## build an html string for the author variable
173     ## containing the presentation author name linked to
174     ## a location of his choice
175     if ($authorUrl) {
176     $author = "<a href=\"$authorUrl\">$author</a>";
177     }
178    
179     ## same string is built if there is a second author for the presentation
180     if ($author2Url) {
181     $author2 = "<br><a href=\"$author2Url\">$author2</a>";
182     } elsif ($author2) {
183     $author2 = "<br>$author2";
184     }
185    
186     ##############################################################################
187     ## read the raw html presentation
188     ##
189    
190     ## copy file in memory
191     my $sep = $/;
192     $/ = undef;
193     if (!open(ALL, $all)) {
194     print "Error: Cannot open file: $all\n";
195     exit 0;
196     }
197     my $buf = <ALL>;
198     close(ALL);
199     $/ = $sep;
200    
201     ## Remove comments from the raw presentation
202     ## they do not need to show up on the slides
203     $buf =~ s/<!--.*?-->//sgo;
204    
205     ## the slidemaker tool assumes that each slide is self contained between 2 sets of h1 tags
206     ## if not it will generate a rather weird output
207     ## split using <h1...> and </h1...> as separator (ignores attributes!)
208     ## h1 or H1 can be used
209     @table = split(/<\/?[hH]1[^>]*>/, $buf);
210    
211     ## compute the total number of slides
212     $total = $#table / 2;
213     if ($#table % 2 != 0) {
214     $total = ($#table +1)/2;
215     }
216    
217     ##
218     ## raw presentation has been read successfully
219     ##############################################################################
220    
221     ##############################################################################
222     ## processing the slides
223    
224     print STDOUT "\n--- Processing $total slides ---\n";
225    
226     ## generate the header table of content of the presentation
227     ## which is also the first page of the talk
228     &openOverview($overview);
229    
230     ## start the slide count so we can number them
231     $slideCount = 1;
232    
233    
234     ## @table is the array containing each slide with its title
235     ## for each slide to be generated
236     ## we delete each slide and its title when generated
237     ## so that the current slide and its title are always at $table[0] (for the title)
238     ## and $table[1] (for the slide content)
239     do {
240    
241     ## get rid of the first element contained by the raw presentation array
242     shift(@table);
243     ## then $table[0] is the title of the slide to be generated
244     $table[0] =~ s/\n+/ /g; ## replace return character by a white space
245     $table[0] =~ s/\r+/ /g; ## replace lf character by a white space
246     $table[0] =~ s/ +/ /g; ## concatenate several white spaces to only one
247     $table[0] =~ s/^ //; ## remove all the starting white spaces in the title
248     $table[0] =~ s/ $//; ## remove all trailing white spaces in the title
249     ## $slideTitle preserves link(s) in the title
250     $slideTitle = $table[0];
251     ## need to check if the title contains any anchor
252     ## if so it needs to be removed
253     ## because the title is being used in the table of content to link to the corresponding slide
254     $table[0] =~ s/(.*)<A[^>]*>(.*)<\/A>(.*)/$1$2$3/i;
255    
256     ## grab next slide title $table[2] (if there's a next slide)
257     ## to be able to use in the 'next' navigation button
258     ## keep in mind that $table[1] contains the slide corresponding to the title $table[0]
259     $next_slide_title = $table[2] if $table[2];
260     ## remove any anchor from the next slide title
261     $next_slide_title =~ s/(.*)<A[^>]*>(.*)<\/A>(.*)/$1$2$3/i;
262    
263     ## the current slide content is stored $table[1]
264     ## there is an attempt to make sure it's clean HTML
265     ## Pierre Fillault's note: use same piece of as used in http://www.w3.org/Web/Tools/CvsCommitScripting
266     ## to make use of the validation service
267     $slideContent = &clean_html($table[1]) ;
268    
269     ## extract slide Sub Title <h2>
270     undef $slideSubTitle;
271     if ($slideContent =~ s/<[hH]2[^>]*>([^<]+)<\/[hH]2[^>]*>//) {
272     $slideSubTitle=$1;
273     }
274    
275     ## add the title of the current slide to the table of content
276     &addTitle($slideTitle,$slideSubTitle,$slideCount);
277    
278     ## generate the current slide
279     ## parameters are:
280     ## title of the slide, its content, the slide number, the title of the previous slide and the title of the next slide
281     &createSlide($slideTitle,$slideSubTitle,$slideContent ,$slideCount++,$previous_slide_title,$next_slide_title);
282    
283     ## save the title of the previous slide to be displayed in the 'previous' navigation button
284     $previous_slide_title="$table[0]";
285     }
286     ## process the next slide
287     while (shift(@table));
288    
289     ## close the table of content
290     &closeOverview;
291    
292     ## generate more toc with the all the style sheets
293     ## as there's no way of loading a style sheet
294     ## except dynamically, but that would be slow
295     ## and would not work on all platforms (ie would fail on Joe's laptop)
296     &generateTOC;
297    
298    
299     print STDOUT "--- Finished ---\n";
300     exit 0;
301     ##
302     ## end of the slidemaker main program
303     ##############################################################################
304    
305    
306     ##############################################################################
307     ## generate the header of the table of content
308    
309     sub openOverview
310     {
311     ## open the file to write to
312     open(FOO, ">$_[0].html") || die "can't open $_[0].html: $!";
313    
314     ## the style sheet used in the table of content is
315     $stylelink = "";
316     ## here is the standard style sheet
317     $stylelink .= "<link href=\"$cssStandard\" rel=\"stylesheet\" type=\"text/css\" title=\"Talk\" media=\"screen\">";
318    
319     if ($logoFile) {
320     $logo_html="<a href=\"$logoLink\"><img src=\"$logoFile\" alt=\"$logoAlt\" border=\"0\"></a>";
321     }
322    
323     if ($logoFile2) {
324     $logo_html.="<a href=\"$logoLink2\"><img src=\"$logoFile2\" alt=\"$logoAlt2\" border=\"0\"></a>";
325     }
326    
327     $title_html="<h1>$talkTitle</h1>";
328     if (length $talkSubTitle != 0) {
329     $title_html.="<h2>$talkSubTitle</h2>";
330     }
331    
332     if (length $date != 0) {
333     $date_html="($date)";
334     }
335    
336     print FOO <<END;
337     $doctype
338     <head>
339     <title>$talkTitle - $loc_toc</title>
340     $http_equiv
341     $stylelink
342     </head>
343     $body
344     <table height="100%" width="100%">
345     <tr>
346     <td class="header-first" valign="top">
347     <table width="100%" border="0">
348     <tr>
349     <td class="cell-logo">$logo_html</td>
350     <td class="cell-heading">$title_html</td>
351     </tr>
352     </table>
353     </td>
354     </tr>
355     <tr>
356 dpavlin 1.2 <td height="$content_hight" class="body" valign="top">
357 dpavlin 1.1 <div class="body">
358     <h3>$loc_toc</h3>
359     <ul>
360     END
361    
362     }
363     ##
364     ## the beginning of the table of content has been generated and saved
365     ##############################################################################
366    
367     ##############################################################################
368     ## generate the footer of the table of content
369    
370     sub closeOverview
371     {
372     my $slide_html=make_progress_bar(0,$total);
373     print FOO <<END;
374     </ul>
375     </div>
376     </td>
377     </tr>
378     <tr>
379     <td class="footer">
380     <table border="0" width="100%">
381     <tr>
382     <td width="33%" class="footer-info">
383     <p>
384     <i>$talkTitle</i>
385     <br>$author $date_html
386     </p>
387     </td><td width="33%" class="footer-nav">
388     <table border="0">
389     <tr>
390     <td>
391     [ <a href="slide1.html">On with the show</a> ]
392     </td>
393     </tr>
394     </table>
395     </td><td width="33%" class="footer-count">
396     $slide_html
397     $author2</td>
398     </tr>
399     </table>
400     </td>
401     </tr>
402     </table>
403     </body>
404     </html>
405     END
406    
407     close(FOO);
408     }
409     ##
410     ## the toc has been completed and saved
411     ##############################################################################
412    
413     ##############################################################################
414     ## add an item in the toc
415    
416     sub addTitle
417     {
418     my ($title,$subtitle,$nr) = @_;
419     $title =~ s/\r//ig; # remove the windows CR+LF
420     $title =~ s/<[^>]+>//g;
421    
422     if (! $title) {
423     return 1;
424     }
425    
426     # split TOC entries to multiple pages
427    
428     if ($nr % $toc_on_page == 0) {
429     my $toc_nr=int($nr/$toc_on_page);
430    
431     print FOO <<END;
432     <br><small><a accesskey=" " tabindex=" " href="index-toc$toc_nr.html">...</a></small></br>
433     END
434     &closeOverview;
435     &openOverview("$overview-toc$toc_nr");
436     $last_toc_title='';
437     }
438    
439     $ul1=$ul2='';
440     if ($last_toc_title eq $title) {
441     $title = $subtitle;
442     $ul1='<ul>';
443     $ul2='</ul>';
444     } else {
445     $last_toc_title=$title;
446     }
447    
448     # add accesskey for first 9 slides (`1' - `9') or just for first
449     # TOC page, and tabindex for all slides
450     if ($nr < 10 && $nr < $toc_on_page) {
451     print FOO <<END;
452     $ul1<li><a accesskey="$nr" tabindex="$nr" href="slide$nr.html">$title</a></li>$ul2
453     END
454     } else {
455     print FOO <<END;
456     $ul1<li><a tabindex="$nr" href="slide$nr.html">$title</a></li>$ul2
457     END
458     }
459     }
460     ##
461     ##############################################################################
462    
463     ##############################################################################
464     ## generate the current slide
465    
466     sub createSlide
467     {
468    
469     # parameters are respectively the slide title, its content,
470     # its number, the next slide title and the previous slide title
471    
472     my ($title,$subtitle,$content,$nr,$next_title,$prev_title) = @_;
473    
474     if (! $title) {
475     return 1;
476     }
477    
478     # work the slide title, the previous and next titles
479     chomp $title;
480     $title =~ s/\r//ig; # remove the windows CR+LF
481     $next_title =~ s/\r//ig;
482     $prev_title =~ s/\r//ig;
483    
484     # Remove any tags from the prev & next titles
485     $next_title =~ s/<[^>]+>//g;
486     $prev_title =~ s/<[^>]+>//g;
487     $title =~ s/<[^>]+>//g;
488    
489     # Replace double quotes
490     # $title =~ s/"/&#34;/g;
491     $next_title =~ s/"/&#34;/g;
492     $prev_title =~ s/"/&#34;/g;
493    
494     # work the slide content
495     $content =~ s/<\/body>//i; # remove if any
496     $content =~ s/<\/html>//i; # remove if any
497    
498     $status = sprintf "Slide %2d: %s %s\n", $nr, $title, $subtitle;
499     $status =~ s/<[^>]+>//g;
500     print STDOUT $status;
501    
502     &verify_html($content); # check the html
503    
504     ## write to the slide
505     open(SLIDE, ">slide$nr.html") || die "can't save slide$nr.html: $!";
506    
507     my $toclink = "[ <a href=\"$overview\.html\" title=\"Contents\">Contents</a> ]";
508    
509     ## initialization of the navigation links
510     my $nextlink = "";
511     my $prevlink = "";
512    
513     if ($nr>1) {
514     $prevlink = "<a href=\"slide".($nr-1).".html\" title=\"Previous\">&lt;&lt;</a>";
515     # } else {
516     # ## add a link back to the toc for the first slide --CMN 19991102
517     # $prevlink = "<a href=\"$overview\.html\" title=\"Previous\">&lt;&lt;</a>";
518     }
519    
520     if ($nr != $total) {
521     $nextlink = "<a href=\"slide".($nr+1).".html\" title=\"Next\">&gt;&gt;</a>";
522     }
523    
524     $stylelink = "";
525     # here is the standard style sheet
526     $stylelink .= "<link href=\"$cssStandard\" rel=\"stylesheet\" type=\"text/css\" title=\"Talk\">";
527    
528     $title_html="<h1>$title</h1>";
529     if ($subtitle) {
530     $title_html.="<h2>$subtitle</h2>";
531     }
532    
533     my $slide_html=make_progress_bar($nr,$total);
534    
535     print SLIDE <<END;
536     $doctype
537     <head>
538     <title>$talkTitle - $title</title>
539     $http_equiv
540     $stylelink
541     </head>
542     $body
543     <table height="100%" width="100%">
544     <tr>
545     <td class="header-first" valign="top">
546     <table width="100%" border="0">
547     <tr>
548     <td class="cell-logo">$logo_html</td>
549     <td class="cell-heading">$title_html</td>
550     </tr>
551     </table>
552     </td>
553     </tr>
554     <tr>
555 dpavlin 1.2 <td height="$content_hight" class="body" valign="top">
556 dpavlin 1.1 <div class="body">
557     $content
558     </div>
559     </td>
560     </tr>
561     <tr>
562     <td class="footer">
563     <table border="0" width="100%">
564     <tr>
565     <td width="33%" class="footer-info">
566     <p>
567     <i>$talkTitle</i>
568     <br>$author $date_html
569     </p>
570     </td><td width="33%" class="footer-nav">
571     <table border="0">
572     <tr>
573     <td>
574     $prevlink
575     $toclink
576     $nextlink
577     </td>
578     </tr>
579     </table>
580     </td><td width="33%" class="footer-count">
581     $slide_html
582     $author2</td>
583     </tr>
584     </table>
585     </td>
586     </tr>
587     </table>
588     </body>
589     </html>
590     END
591    
592     close(SLIDE);
593     return 0;
594     }
595    
596     ##############################################################################
597     ## generate all the toc of contents needed for each css choosen by the user
598     ## the default toc is not numbered so it can be served by a request to '/'
599     ## (ie it remains Overview.html whereas the other toc are called Overview_#.html)
600    
601     sub generateTOC {
602    
603     ## read the general toc
604     open(FOO, "<$overview.html");
605     @TOC = <FOO>;
606     close(FOO);
607     $toc = "@TOC";
608    
609     ## for each user CSS file
610     ## starting after the default css
611     for ($css=1;$css<$nbCssStandard;$css++) {
612    
613     ## create new TOC
614     $newTOC = $toc;
615    
616     ## the links on the toc need also to be modified
617     ## to link to the correct slides
618     $newTOC =~ s/<a accesskey=\"(\d)\" tabindex=\"(\d+)\" href=\"slide(\d+)-\d+\.html\">/<a accesskey=\"$1\" tabindex=\"$2\" href=\"slide$3-$css\.html">/ig;
619     $newTOC =~ s/<a tabindex=\"(\d+)\" href=\"slide(\d+)-\d+\.html\">/<a tabindex=\"$1\" href=\"slide$2-$css\.html">/ig;
620    
621     ## write to new TOC
622     $outfile = $overview."-".$css.".html";
623     open(OUT, ">$outfile");
624     print OUT $newTOC;
625     close(OUT)
626     }
627    
628    
629     }
630    
631     ##############################################################################
632     # check that the html of the slide
633     # is correct (ALT tags, ...)
634     # This procedure produces only warning
635     sub verify_html {
636    
637     if ($_[0] =~ /<img([^>]*)>/im) {
638     if (!($1 =~ /ALT=/im)) {
639     print STDOUT "WARNING: <IMG> without ALT\n";
640     print STDOUT " <IMG$1>\n" ;
641     }
642     }
643     }
644    
645     ##############################################################################
646     # clean the html of the slide
647     # remove all <div class="comment">blabla</div>
648     sub clean_html {
649     $_[0] =~ s/<div\s+class\s*=\s*(?:comment[\s>]|\"comment\").*?<\/div>//igs;
650     return $_[0];
651     }
652    
653     ##############################################################################
654     # make transparent 1x1 gif (for layout tricks)
655     sub make_dotgif {
656     @dot_gif=(71,73,70,56,57,97,1,0,1,0,128,0,0,192,192,192,0,0,0,33,
657     249,4,1,0,0,0,0,44,0,0,0,0,1,0,1,0,0,2,2,68,1,0,59);
658     open(GIF,"> $_[0]") || die "can't write gif $_[0]: $!";
659     my $dotgif;
660     foreach (@dot_gif) {
661     $dotgif.=chr($_);
662     }
663     print GIF $dotgif;
664     close(GIF);
665     }
666    
667     ##############################################################################
668     # make slide progress bar
669     sub make_progress_bar {
670     my ($nr,$total) = @_;
671    
672     my $pcnt_done=int($nr*100/$total);
673     my $pcnt_left=100-$pcnt_done;
674    
675     if ($progress_bar) {
676     my $l=$r="&nbsp;";
677     my $t="$nr of $total";
678     if ($pcnt_done > 50) {
679     $l=$t;
680     } else {
681     $r=$t;
682     }
683     $html='<table border="0" width="30%" cellpadding="0" cellspacing="0" align="right"><tr><td width="'.$pcnt_done.'%" class="pcnt-done">'.$l.'</td><td width="'.$pcnt_left.'%" class="pcnt-left">'.$r.'</td></tr></table>';
684     } else {
685     $html="$loc_slide $nr $loc_of $total";
686     }
687    
688     return $html;
689     }
690    

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