1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
4: # $Id: londefdef.pm,v 1.158.4.4 2003/08/30 02:41:26 albertel Exp $
5: #
6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
20: #
21: # You should have received a copy of the GNU General Public License
22: # along with LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
26: #
27: # http://www.lon-capa.org/
28: ## Copyright for TtHfunc and TtMfunc by Ian Hutchinson.
29: # TtHfunc and TtMfunc (the "Code") may be compiled and linked into
30: # binary executable programs or libraries distributed by the
31: # Michigan State University (the "Licensee"), but any binaries so
32: # distributed are hereby licensed only for use in the context
33: # of a program or computational system for which the Licensee is the
34: # primary author or distributor, and which performs substantial
35: # additional tasks beyond the translation of (La)TeX into HTML.
36: # The C source of the Code may not be distributed by the Licensee
37: # to any other parties under any circumstances.
38: #
39: #
40: # last modified 06/26/00 by Alexander Sakharuk
41: # 11/6,11/30,02/01/01,5/4 Gerd Kortemeyer
42: # 01/18 Alex Sakharuk
43:
44: package Apache::londefdef;
45:
46: use Apache::lonnet();
47: use strict;
48: use Apache::lonxml;
49: use Apache::File();
50: use Image::Magick;
51: use Apache::lonmenu();
52: use Apache::lonmeta();
53:
54: BEGIN {
55:
56: &Apache::lonxml::register('Apache::londefdef',('a','abbr','acronym','accessrule','address','allow','applet','area','b','base','basefont','bgo','bgsound','big','blink','blockquote','blankspace','body','br','button','caption','center','cite','code','col','colgroup','dd','del','dfn','dir','div','dl','dt','em','embed','externallink','fieldset','font','form','frame','frameset','h1','h2','h3','h4','h5','h6','head','hr','html','i','iframe','img','input','ins','insert','isindex','kbd','keygen','label','layer','legend','li','link','m','map','marquee','menu','meta','multicol','nobr','noembed','noframes','nolayer','noscript','object','ol','optgroup','option','output','p','param','pre','q','s','samp','select','server','small','spacer','span','strike','strong','sub','sup','table','tbody','td','textarea','tfoot','th','thead','title','tr','tt','tthoption','u','ul','var','wbr','hideweboutput'));
57:
58: }
59:
60: #======================= TAG SUBROUTINES =====================
61: #-- <output>
62: sub start_output {
63: my ($target) = @_;
64: if ($target eq 'meta') { $Apache::lonxml::metamode--; }
65: return '';
66: }
67: sub end_output {
68: my ($target) = @_;
69: if ($target eq 'meta') { $Apache::lonxml::metamode++; }
70: return '';
71: }
72: #-- <m> tag
73: sub start_m {
74: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
75: my $currentstring = '';
76: if ($target eq 'web') {
77: $Apache::lonxml::prevent_entity_encode++;
78: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
79: $inside ='\\documentstyle{article}'.$inside;
80: &Apache::lonxml::debug("M is starting with:$inside:");
81: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
82: if ($eval eq 'on') {
83: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
84: #&Apache::lonxml::debug("M is evaulated to:$inside:");
85: }
86: $currentstring = &Apache::lontexconvert::converted(\$inside);
87: if ($Apache::lontexconvert::errorstring) {
88: &Apache::lonxml::warning("tth error: ".
89: $Apache::lontexconvert::errorstring);
90: $Apache::lontexconvert::errorstring='';
91: }
92: #&Apache::lonxml::debug("M is ends with:$currentstring:");
93: } elsif ($target eq 'tex') {
94: $currentstring = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
95: if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
96: } else {
97: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
98: }
99: return $currentstring;
100: }
101:
102: sub end_m {
103: my ($target,$token) = @_;
104: my $currentstring = '';
105: if ($target eq 'web') {
106: $Apache::lonxml::prevent_entity_encode--;
107: } elsif ($target eq 'tex') {
108: $currentstring = "";
109: } elsif ($target eq 'meta') {
110: }
111: return $currentstring;
112: }
113:
114: sub start_tthoption {
115: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
116: my $result;
117: if ($target eq 'web') {
118: my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser);
119: $inside=~s/^\s*//;
120: if ($ENV{'browser.mathml'}) {
121: &tth::ttmoptions($inside);
122: } else {
123: &tth::tthoptions($inside);
124: }
125: }
126: return $result;
127: }
128:
129: sub end_tthoption {
130: my ($target,$token) = @_;
131: my $result;
132: return $result;
133: }
134:
135: #-- <html> tag
136: sub start_html {
137: my ($target,$token) = @_;
138: my $currentstring = '';
139: if ($ENV{'browser.mathml'}) {
140: &tth::ttminit();
141: if ($ENV{'browser.unicode'}) {
142: &tth::ttmoptions('-L -u1');
143: } else {
144: &tth::ttmoptions('-L -u0');
145: }
146: } else {
147: &tth::tthinit();
148: if ($ENV{'browser.unicode'}) {
149: &tth::tthoptions('-L -u1');
150: } else {
151: &tth::tthoptions('-L -u0');
152: }
153: }
154: if ($target eq 'web') {
155: $currentstring = &Apache::lonxml::xmlbegin().
156: &Apache::lonxml::fontsettings();
157: } elsif ($target eq 'tex') {
158: @Apache::londefdef::table = ();
159: $currentstring .= '\documentclass[letterpaper]{article}';
160: if ($ENV{'form.latex_type'}=~'batchmode') {$currentstring .='\batchmode';}
161: $currentstring .= '\newcommand{\keephidden}[1]{}
162: \renewcommand{\deg}{$^{\circ}$}
163: \usepackage{longtable}
164: \usepackage{textcomp}
165: \usepackage[dvips]{graphicx}
166: \usepackage{epsfig}\usepackage{calc}
167: \newenvironment{choicelist}{\begin{list}{}{\setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.05in}\setlength{\itemsep}{0.022in}\setlength{\parsep}{0in}\setlength{\belowdisplayskip}{0.04in}\setlength{\abovedisplayskip}{0.05in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.04in}}}{\end{list}}';
168: }
169: return $currentstring;
170: }
171:
172: sub end_html {
173: my ($target,$token) = @_;
174: my $currentstring = '';
175: if ($target eq 'web') {
176: $currentstring = &Apache::lonxml::xmlend();
177: }
178: return $currentstring;
179: }
180:
181: #-- <head> tag
182: sub start_head {
183: my ($target,$token) = @_;
184: my $currentstring = '';
185: if ($target eq 'web') {
186: $currentstring = $token->[4];
187: }
188: return $currentstring;
189: }
190:
191: sub end_head {
192: my ($target,$token) = @_;
193: my $currentstring = '';
194: if ($target eq 'web') {
195: $currentstring = &Apache::lonmenu::registerurl(undef,$target).
196: $token->[2];
197: }
198: return $currentstring;
199: }
200:
201: #-- <map> tag
202: sub start_map {
203: my ($target,$token) = @_;
204: my $currentstring = '';
205: if ($target eq 'web') {
206: $currentstring = $token->[4];
207: }
208: return $currentstring;
209: }
210:
211: sub end_map {
212: my ($target,$token) = @_;
213: my $currentstring = '';
214: if ($target eq 'web') {
215: $currentstring = $token->[2];
216: }
217: return $currentstring;
218: }
219:
220: #-- <select> tag
221: sub start_select {
222: my ($target,$token) = @_;
223: my $currentstring = '';
224: if ($target eq 'web') {
225: $currentstring = $token->[4];
226: }
227: return $currentstring;
228: }
229:
230: sub end_select {
231: my ($target,$token) = @_;
232: my $currentstring = '';
233: if ($target eq 'web') {
234: $currentstring = $token->[2];
235: }
236: return $currentstring;
237: }
238:
239: #-- <option> tag
240: sub start_option {
241: my ($target,$token) = @_;
242: my $currentstring = '';
243: if ($target eq 'web') {
244: $currentstring = $token->[4];
245: }
246: return $currentstring;
247: }
248:
249: sub end_option {
250: my ($target,$token) = @_;
251: my $currentstring = '';
252: if ($target eq 'web') {
253: $currentstring = $token->[2];
254: }
255: return $currentstring;
256: }
257:
258: #-- <input> tag
259: sub start_input {
260: my ($target,$token) = @_;
261: my $currentstring = '';
262: if ($target eq 'web') {
263: $currentstring = $token->[4];
264: }
265: return $currentstring;
266: }
267:
268: sub end_input {
269: my ($target,$token) = @_;
270: my $currentstring = '';
271: if ($target eq 'web') {
272: $currentstring = $token->[2];
273: }
274: return $currentstring;
275: }
276:
277: #-- <textarea> tag
278: sub start_textarea {
279: my ($target,$token) = @_;
280: my $currentstring = '';
281: if ($target eq 'web') {
282: $currentstring = $token->[4];
283: }
284: return $currentstring;
285: }
286:
287: sub end_textarea {
288: my ($target,$token) = @_;
289: my $currentstring = '';
290: if ($target eq 'web') {
291: $currentstring = $token->[2];
292: }
293: return $currentstring;
294: }
295:
296: #-- <form> tag
297: sub start_form {
298: my ($target,$token) = @_;
299: my $currentstring = '';
300: if ($target eq 'web') {
301: $currentstring = $token->[4];
302: }
303: return $currentstring;
304: }
305:
306: sub end_form {
307: my ($target,$token) = @_;
308: my $currentstring = '';
309: if ($target eq 'web') {
310: $currentstring = $token->[2];
311: }
312: return $currentstring;
313: }
314:
315: #-- <title> tag
316: sub start_title {
317: my ($target,$token) = @_;
318: my $currentstring = '';
319: if ($target eq 'web') {
320: $currentstring = $token->[4];
321: } elsif ($target eq 'tex') {
322: $currentstring .= '\keephidden{'
323: }
324: if ($target eq 'meta') {
325: $currentstring='<title>';
326: &start_output();
327: }
328: return $currentstring;
329: }
330:
331: sub end_title {
332: my ($target,$token) = @_;
333: my $currentstring = '';
334: if ($target eq 'web') {
335: $currentstring = $token->[2];
336: } elsif ($target eq 'tex') {
337: $currentstring .= '}';
338: }
339: if ($target eq 'meta') {
340: &end_output();
341: $currentstring='</title>';
342: }
343: return $currentstring;
344: }
345:
346: #-- <meta> tag
347: sub start_meta {
348: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
349: my $currentstring = '';
350: if ($target eq 'web') {
351: my $args='';
352: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
353: if ($args eq '') {
354: &Apache::lonxml::get_all_text("/meta",$parser);
355: } else {
356: $currentstring = $token->[4];
357: }
358: } elsif ($target eq 'meta') {
359: unless (&Apache::lonxml::get_param
360: ('http-equiv',$parstack,$safeeval,undef,1)) {
361: my $name=$token->[2]->{'name'};
362: $name=~tr/A-Z/a-z/;
363: $name=~s/\s/\_/gs;
364: $name=~s/\W//gs;
365: if ($name) {
366: $currentstring='<'.$name;
367: my $display=&Apache::lonxml::get_param
368: ('display',$parstack,$safeeval,undef,1);
369: if ($display) {
370: $display=~s/\"/\'/g;
371: $currentstring.=' display="'.$display.'"';
372: }
373: $currentstring.='>'.
374: &Apache::lonxml::get_param
375: ('content',$parstack,$safeeval,undef,1).
376: '</'.$name.'>';
377: }
378: my $display=&Apache::lonxml::get_param
379: ('display',$parstack,$safeeval,undef,1);
380: if ($display) {
381: $display=&HTML::Entities::encode($display);
382: $currentstring.='<'.$name.'.display>'.$display.
383: '</'.$name.'.display>';
384: }
385: }
386: } elsif ($target eq 'tex') {
387: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
388: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
389: if ((not defined $content) && (not defined $name)) {
390: &Apache::lonxml::startredirection();
391: }
392: }
393: return $currentstring;
394: }
395:
396: sub end_meta {
397: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
398: my $currentstring = '';
399: if ($target eq 'web') {
400: my $args='';
401: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
402: if ($args ne '') {
403: $currentstring = $token->[4];
404: }
405: } elsif ($target eq 'tex') {
406: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
407: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
408: if ((not defined $content) && (not defined $name)) {
409: &Apache::lonxml::endredirection();
410: }
411: }
412: return $currentstring;
413: }
414:
415: # accessrule
416: sub start_accessrule {
417: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
418: my $currentstring = '';
419: my $eff=&Apache::lonxml::get_param
420: ('effect',$parstack,$safeeval,undef,1);
421: my $realm=&Apache::lonxml::get_param
422: ('realm',$parstack,$safeeval,undef,1);
423: my $role=&Apache::lonxml::get_param
424: ('role',$parstack,$safeeval,undef,1);
425: $realm=~s/\s+//g;
426: $realm=~s/\//\_/g;
427: $realm=~s/^\_//;
428: $realm=~s/\W/\;/g;
429: $role=~s/\s+//g;
430: $role=~s/\//\_/g;
431: $role=~s/\W/\;/g;
432: if ($target eq 'web') {
433: my $args='';
434: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
435: if ($args eq '') {
436: &Apache::lonxml::get_all_text("/accessrule",$parser);
437: } else {
438: $currentstring = $token->[4];
439: }
440: }
441: if ($target eq 'meta') {
442: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.'</rule>';
443: }
444: return $currentstring;
445: }
446:
447: sub end_accessrule {
448: my ($target,$token,$tagstack,$parstack,$parser) = @_;
449: my $currentstring = '';
450: if ($target eq 'web') {
451: my $args='';
452: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
453: if ($args ne '') {
454: $currentstring = $token->[4];
455: }
456: }
457: return $currentstring;
458: }
459:
460: #-- <body> tag
461: sub start_body {
462: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
463: my $currentstring = '';
464: if ($target eq 'web') {
465: if ($Apache::lonhomework::parsing_a_problem) {
466: &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
467: return '';
468: }
469: if (!$Apache::lonxml::registered) {
470: $currentstring.='<head>'.
471: &Apache::lonmenu::registerurl(undef,$target).'</head>';
472: }
473: # Accessibility
474: if ($ENV{'browser.imagesuppress'} eq 'on') {
475: delete($token->[2]->{'background'});
476: }
477: if ($ENV{'browser.fontenhance'} eq 'on') {
478: my $style='';
479: foreach my $key (keys(%{$token->[2]})) {
480: if ($key =~ /^style$/i) {
481: $style.=$token->[2]->{$key}.';';
482: delete($token->[2]->{$key});
483: }
484: }
485: $token->[2]->{'style'}=$style.'; font-size: x-large;';
486: }
487: if ($ENV{'browser.blackwhite'} eq 'on') {
488: delete($token->[2]->{'font'});
489: delete($token->[2]->{'link'});
490: delete($token->[2]->{'alink'});
491: delete($token->[2]->{'vlink'});
492: delete($token->[2]->{'bgcolor'});
493: delete($token->[2]->{'background'});
494: }
495: # Overload loads
496: my $onLoad='';
497: foreach my $key (keys(%{$token->[2]})) {
498: if ($key =~ /^onload$/i) {
499: $onLoad.=$token->[2]->{$key}.';';
500: delete($token->[2]->{$key});
501: }
502: }
503: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
504: my $onUnload='';
505: foreach my $key (keys(%{$token->[2]})) {
506: if ($key =~ /^onunload$/i) {
507: $onUnload.=$token->[2]->{$key}.';';
508: delete($token->[2]->{$key});
509: }
510: }
511: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
512: ';'.$onUnload;
513:
514: $currentstring .= '<'.$token->[1];
515: foreach (keys %{$token->[2]}) {
516: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
517: }
518: $currentstring.='>';
519: if ($ENV{'request.state'} ne 'published') {
520: $currentstring.=(<<EDITBUTTON);
521: <form method="post">
522: <input type="submit" name="editmode" value="Edit" />
523: </form>
524: EDITBUTTON
525: } else {
526: $currentstring.=&Apache::lonmenu::menubuttons(undef,$target,1);
527: }
528: } elsif ($target eq 'tex') {
529: $currentstring = '\begin{document}';
530: }
531: return $currentstring;
532: }
533:
534: sub end_body {
535: my ($target,$token) = @_;
536: my $currentstring = '';
537: if ($target eq 'web') {
538: $currentstring = $token->[2];
539: } elsif ($target eq 'tex') {
540: $currentstring = '\end{document}';
541: }
542: return $currentstring;
543: }
544:
545: #-- <center> tag
546: sub start_center {
547: my ($target,$token) = @_;
548: my $currentstring = '';
549: if ($target eq 'web') {
550: $currentstring = $token->[4];
551: } elsif ($target eq 'tex') {
552: $currentstring = '\begin{center}';
553: }
554: return $currentstring;
555: }
556:
557: sub end_center {
558: my ($target,$token) = @_;
559: my $currentstring = '';
560: if ($target eq 'web') {
561: $currentstring = $token->[2];
562: } elsif ($target eq 'tex') {
563: $currentstring = '\end{center}';
564: }
565: return $currentstring;
566: }
567:
568: #-- <b> tag
569: sub start_b {
570: my ($target,$token) = @_;
571: my $currentstring = '';
572: if ($target eq 'web') {
573: $currentstring = $token->[4];
574: } elsif ($target eq 'tex') {
575: $currentstring = '\textbf{';
576: }
577: return $currentstring;
578: }
579:
580: sub end_b {
581: my ($target,$token) = @_;
582: my $currentstring = '';
583: if ($target eq 'web') {
584: $currentstring = $token->[2];
585: } elsif ($target eq 'tex') {
586: $currentstring = '}';
587: }
588: return $currentstring;
589: }
590:
591: #-- <strong> tag
592: sub start_strong {
593: my ($target,$token) = @_;
594: my $currentstring = '';
595: if ($target eq 'web') {
596: $currentstring = $token->[4];
597: } elsif ($target eq 'tex') {
598: $currentstring = '\textbf{';
599: }
600: return $currentstring;
601: }
602:
603: sub end_strong {
604: my ($target,$token) = @_;
605: my $currentstring = '';
606: if ($target eq 'web') {
607:
608: $currentstring = $token->[2];
609: } elsif ($target eq 'tex') {
610: $currentstring = '}';
611: }
612: return $currentstring;
613: }
614:
615: #-- <h1> tag
616: sub start_h1 {
617: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
618: my $currentstring = '';
619: if ($target eq 'web') {
620: $currentstring .= $token->[4];
621: } elsif ($target eq 'tex') {
622: my $pre;
623: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
624: if (($align eq 'center') || (not defined $align)) {
625: $pre='\begin{center}';
626: } elsif ($align eq 'left') {
627: $pre='\rlap{';
628: } elsif ($align eq 'right') {
629: $pre=' \hfill \llap{';
630: }
631: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
632: if (not defined $TeXsize) {$TeXsize="large";}
633: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
634: } elsif ($target eq 'meta') {
635: $currentstring='<subject>';
636: &start_output();
637: }
638: return $currentstring;
639: }
640:
641: sub end_h1 {
642: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
643: my $currentstring = '';
644: if ($target eq 'web') {
645: $currentstring .= $token->[2];
646: } elsif ($target eq 'tex') {
647: my $post;
648: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
649: if (($align eq 'center') || (not defined $align)) {
650: $post='\end{center}';
651: } elsif ($align eq 'left') {
652: $post='} \hfill'.'\vskip 0 mm ';
653: } elsif ($align eq 'right') {
654: $post='}'.'\vskip 0 mm ';
655: }
656: $currentstring .= '}}'.$post;
657: } elsif ($target eq 'meta') {
658: &end_output();
659: $currentstring='</subject>';
660: }
661: return $currentstring;
662: }
663:
664: #-- <h2> tag
665: sub start_h2 {
666: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
667: my $currentstring = '';
668: if ($target eq 'web') {
669: $currentstring .= $token->[4];
670: } elsif ($target eq 'tex') {
671: my $pre;
672: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
673: if (($align eq 'center') || (not defined $align)) {
674: $pre='\begin{center}';
675: } elsif ($align eq 'left') {
676: $pre='\rlap{';
677: } elsif ($align eq 'right') {
678: $pre=' \hfill \llap{';
679: }
680: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
681: if (not defined $TeXsize) {$TeXsize="large";}
682: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
683: }
684: return $currentstring;
685: }
686:
687: sub end_h2 {
688: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
689: my $currentstring = '';
690: if ($target eq 'web') {
691: $currentstring .= $token->[2];
692: } elsif ($target eq 'tex') {
693: my $post;
694: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
695: if (($align eq 'center') || (not defined $align)) {
696: $post='\end{center}';
697: } elsif ($align eq 'left') {
698: $post='} \hfill'.'\vskip 0 mm ';
699: } elsif ($align eq 'right') {
700: $post='}'.'\vskip 0 mm ';
701: }
702: $currentstring .= '}}'.$post;
703: }
704: return $currentstring;
705: }
706:
707: #-- <h3> tag
708: sub start_h3 {
709: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
710: my $currentstring = '';
711: if ($target eq 'web') {
712: $currentstring .= $token->[4];
713: } elsif ($target eq 'tex') {
714: my $pre;
715: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
716: if (($align eq 'center') || (not defined $align)) {
717: $pre='\begin{center}';
718: } elsif ($align eq 'left') {
719: $pre='\rlap{';
720: } elsif ($align eq 'right') {
721: $pre=' \hfill \llap{';
722: }
723: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
724: if (not defined $TeXsize) {$TeXsize="large";}
725: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
726: }
727: return $currentstring;
728: }
729:
730: sub end_h3 {
731: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
732: my $currentstring = '';
733: if ($target eq 'web') {
734: $currentstring .= $token->[2];
735: } elsif ($target eq 'tex') {
736: my $post;
737: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
738: if (($align eq 'center') || (not defined $align)) {
739: $post='\end{center}';
740: } elsif ($align eq 'left') {
741: $post='} \hfill'.'\vskip 0 mm ';
742: } elsif ($align eq 'right') {
743: $post='}'.'\vskip 0 mm ';
744: }
745: $currentstring .= '}}'.$post;
746: }
747: return $currentstring;
748: }
749:
750: #-- <h4> tag
751: sub start_h4 {
752: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
753: my $currentstring = '';
754: if ($target eq 'web') {
755: $currentstring .= $token->[4];
756: } elsif ($target eq 'tex') {
757: my $pre;
758: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
759: if (($align eq 'center') || (not defined $align)) {
760: $pre='\begin{center}';
761: } elsif ($align eq 'left') {
762: $pre='\rlap{';
763: } elsif ($align eq 'right') {
764: $pre=' \hfill \llap{';
765: }
766: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
767: if (not defined $TeXsize) {$TeXsize="large";}
768: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
769: }
770: return $currentstring;
771: }
772:
773: sub end_h4 {
774: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
775: my $currentstring = '';
776: if ($target eq 'web') {
777: $currentstring .= $token->[2];
778: } elsif ($target eq 'tex') {
779: my $post;
780: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
781: if (($align eq 'center') || (not defined $align)) {
782: $post='\end{center}';
783: } elsif ($align eq 'left') {
784: $post='} \hfill'.'\vskip 0 mm ';
785: } elsif ($align eq 'right') {
786: $post='}'.'\vskip 0 mm ';
787: }
788: $currentstring .= '}}'.$post;
789: }
790: return $currentstring;
791: }
792:
793: #-- <h5> tag
794: sub start_h5 {
795: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
796: my $currentstring = '';
797: if ($target eq 'web') {
798: $currentstring .= $token->[4];
799: } elsif ($target eq 'tex') {
800: my $pre;
801: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
802: if (($align eq 'center') || (not defined $align)) {
803: $pre='\begin{center}';
804: } elsif ($align eq 'left') {
805: $pre='\rlap{';
806: } elsif ($align eq 'right') {
807: $pre=' \hfill \llap{';
808: }
809: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
810: if (not defined $TeXsize) {$TeXsize="large";}
811: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
812: }
813: return $currentstring;
814: }
815:
816: sub end_h5 {
817: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
818: my $currentstring = '';
819: if ($target eq 'web') {
820: $currentstring .= $token->[2];
821: } elsif ($target eq 'tex') {
822: my $post;
823: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
824: if (($align eq 'center') || (not defined $align)) {
825: $post='\end{center}';
826: } elsif ($align eq 'left') {
827: $post='} \hfill'.'\vskip 0 mm ';
828: } elsif ($align eq 'right') {
829: $post='}'.'\vskip 0 mm ';
830: }
831: $currentstring .= '}}'.$post;
832: }
833: return $currentstring;
834: }
835:
836: #-- <h6> tag
837: sub start_h6 {
838: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
839: my $currentstring = '';
840: if ($target eq 'web') {
841: $currentstring .= $token->[4];
842: } elsif ($target eq 'tex') {
843: my $pre;
844: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
845: if (($align eq 'center') || (not defined $align)) {
846: $pre='\begin{center}';
847: } elsif ($align eq 'left') {
848: $pre='\rlap{';
849: } elsif ($align eq 'right') {
850: $pre=' \hfill \llap{';
851: }
852: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
853: if (not defined $TeXsize) {$TeXsize="large";}
854: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
855: }
856: return $currentstring;
857: }
858:
859: sub end_h6 {
860: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
861: my $currentstring = '';
862: if ($target eq 'web') {
863: $currentstring .= $token->[2];
864: } elsif ($target eq 'tex') {
865: my $post;
866: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
867: if (($align eq 'center') || (not defined $align)) {
868: $post='\end{center}';
869: } elsif ($align eq 'left') {
870: $post='} \hfill'.'\vskip 0 mm ';
871: } elsif ($align eq 'right') {
872: $post='}'.'\vskip 0 mm ';
873: }
874: $currentstring .= '}}'.$post;
875: }
876: return $currentstring;
877: }
878:
879: #--- <cite> tag
880: sub start_cite {
881: my ($target,$token) = @_;
882: my $currentstring = '';
883: if ($target eq 'web') {
884: $currentstring .= $token->[4];
885: } elsif ($target eq 'tex') {
886: $currentstring .= "\\textit{";
887: }
888: return $currentstring;
889: }
890:
891: sub end_cite {
892: my ($target,$token) = @_;
893: my $currentstring = '';
894: if ($target eq 'web') {
895: $currentstring .= $token->[2];
896: } elsif ($target eq 'tex') {
897: $currentstring .= "}";
898: }
899: return $currentstring;
900: }
901:
902: #-- <i> tag
903: sub start_i {
904: my ($target,$token) = @_;
905: my $currentstring = '';
906: if ($target eq 'web') {
907: $currentstring .= $token->[4];
908: } elsif ($target eq 'tex') {
909: $currentstring .= '\textit{';
910: }
911: return $currentstring;
912: }
913:
914: sub end_i {
915: my ($target,$token) = @_;
916: my $currentstring = '';
917: if ($target eq 'web') {
918: $currentstring .= $token->[2];
919: } elsif ($target eq 'tex') {
920: $currentstring .= '}';
921: }
922: return $currentstring;
923: }
924:
925: #-- <address> tag
926: sub start_address {
927: my ($target,$token) = @_;
928: my $currentstring = '';
929: if ($target eq 'web') {
930: $currentstring .= $token->[4];
931: } elsif ($target eq 'tex') {
932: $currentstring .= "\\textit{";
933: }
934: return $currentstring;
935: }
936:
937: sub end_address {
938: my ($target,$token) = @_;
939: my $currentstring = '';
940: if ($target eq 'web') {
941: $currentstring .= $token->[2];
942: } elsif ($target eq 'tex') {
943: $currentstring .= "}";
944: }
945: return $currentstring;
946: }
947:
948: #-- <dfn> tag
949: sub start_dfn {
950: my ($target,$token) = @_;
951: my $currentstring = '';
952: if ($target eq 'web') {
953: $currentstring .= $token->[4];
954: } elsif ($target eq 'tex') {
955: $currentstring .= "\\textit{";
956: }
957: return $currentstring;
958: }
959:
960: sub end_dfn {
961: my ($target,$token) = @_;
962: my $currentstring = '';
963: if ($target eq 'web') {
964: $currentstring .= $token->[2];
965: } elsif ($target eq 'tex') {
966: $currentstring .= "}";
967: }
968: return $currentstring;
969: }
970:
971: #-- <tt> tag
972: sub start_tt {
973: my ($target,$token) = @_;
974: my $currentstring = '';
975: if ($target eq 'web') {
976: $currentstring .= $token->[4];
977: } elsif ($target eq 'tex') {
978: $currentstring .= '\texttt{';
979: }
980: return $currentstring;
981: }
982:
983: sub end_tt {
984: my ($target,$token) = @_;
985: my $currentstring = '';
986: if ($target eq 'web') {
987: $currentstring .= $token->[2];
988: } elsif ($target eq 'tex') {
989: $currentstring .= '}';
990: }
991: return $currentstring;
992: }
993:
994: #-- <kbd> tag
995: sub start_kbd {
996: my ($target,$token) = @_;
997: my $currentstring = '';
998: if ($target eq 'web') {
999: $currentstring .= $token->[4];
1000: } elsif ($target eq 'tex') {
1001: $currentstring .= "\\texttt";
1002: }
1003: return $currentstring;
1004: }
1005:
1006: sub end_kbd {
1007: my ($target,$token) = @_;
1008: my $currentstring = '';
1009: if ($target eq 'web') {
1010: $currentstring .= $token->[2];
1011: } elsif ($target eq 'tex') {
1012: $currentstring .= "}";
1013: }
1014: return $currentstring;
1015: }
1016:
1017: #-- <code> tag
1018: sub start_code {
1019: my ($target,$token) = @_;
1020: my $currentstring = '';
1021: if ($target eq 'web') {
1022: $currentstring .= $token->[4];
1023: } elsif ($target eq 'tex') {
1024: $currentstring .= '\texttt{';
1025: }
1026: return $currentstring;
1027: }
1028:
1029: sub end_code {
1030: my ($target,$token) = @_;
1031: my $currentstring = '';
1032: if ($target eq 'web') {
1033: $currentstring .= $token->[2];
1034: } elsif ($target eq 'tex') {
1035: $currentstring .= '}';
1036: }
1037: return $currentstring;
1038: }
1039:
1040: #-- <em> tag
1041: sub start_em {
1042: my ($target,$token) = @_;
1043: my $currentstring = '';
1044: if ($target eq 'web') {
1045: $currentstring .= $token->[4];
1046: } elsif ($target eq 'tex') {
1047: $currentstring .= '\emph{';
1048: }
1049: return $currentstring;
1050: }
1051:
1052: sub end_em {
1053: my ($target,$token) = @_;
1054: my $currentstring = '';
1055: if ($target eq 'web') {
1056: $currentstring .= $token->[2];
1057: } elsif ($target eq 'tex') {
1058: $currentstring .= '}';
1059: }
1060: return $currentstring;
1061: }
1062:
1063: #-- <q> tag
1064: sub start_q {
1065: my ($target,$token) = @_;
1066: my $currentstring = '';
1067: if ($target eq 'web') {
1068: $currentstring .= $token->[4];
1069: } elsif ($target eq 'tex') {
1070: $currentstring .= "\\emph{";
1071: }
1072: return $currentstring;
1073: }
1074:
1075: sub end_q {
1076: my ($target,$token) = @_;
1077: my $currentstring = '';
1078: if ($target eq 'web') {
1079: $currentstring .= $token->[2];
1080: } elsif ($target eq 'tex') {
1081: $currentstring .= "}";
1082: }
1083: return $currentstring;
1084: }
1085:
1086: #-- <p> tag
1087: sub start_p {
1088: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1089: my $currentstring = '';
1090: if ($target eq 'web') {
1091: $currentstring .= $token->[4];
1092: } elsif ($target eq 'tex') {
1093: my $signal=1;
1094: foreach my $tag (@$tagstack) {if (lc($tag) eq 'b') {$signal=0;}}
1095: if ($signal) {$currentstring .= '\par ';}
1096: }
1097: return $currentstring;
1098: }
1099:
1100: sub end_p {
1101: my ($target,$token) = @_;
1102: my $currentstring = '';
1103: if ($target eq 'web') {
1104: $currentstring .= $token->[2];
1105: }
1106: return $currentstring;
1107: }
1108:
1109: #-- <br> tag
1110: sub start_br {
1111: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1112: my $currentstring = '';
1113: if ($target eq 'web') {
1114: $currentstring .= $token->[4];
1115: } elsif ($target eq 'tex') {
1116: if ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') {
1117: $currentstring .= '\vskip 0.2 mm ';
1118: }
1119: }
1120: return $currentstring;
1121: }
1122:
1123: sub end_br {
1124: my ($target,$token) = @_;
1125: my $currentstring = '';
1126: if ($target eq 'web') {
1127: $currentstring .= $token->[2];
1128: }
1129: return $currentstring;
1130: }
1131:
1132: #-- <big> tag
1133: sub start_big {
1134: my ($target,$token) = @_;
1135: my $currentstring = '';
1136: if ($target eq 'web') {
1137: $currentstring .= $token->[4];
1138: } elsif ($target eq 'tex') {
1139: $currentstring .= '{\large ';
1140: }
1141: return $currentstring;
1142: }
1143:
1144: sub end_big {
1145: my ($target,$token) = @_;
1146: my $currentstring = '';
1147: if ($target eq 'web') {
1148: $currentstring .= $token->[2];
1149: } elsif ($target eq 'tex') {
1150: $currentstring .= '}';
1151: }
1152: return $currentstring;
1153: }
1154:
1155: #-- <small> tag
1156: sub start_small {
1157: my ($target,$token) = @_;
1158: my $currentstring = '';
1159: if ($target eq 'web') {
1160: $currentstring .= $token->[4];
1161: } elsif ($target eq 'tex') {
1162: $currentstring .= '{\footnotesize ';
1163: }
1164: return $currentstring;
1165: }
1166:
1167: sub end_small {
1168: my ($target,$token) = @_;
1169: my $currentstring = '';
1170: if ($target eq 'web') {
1171: $currentstring .= $token->[2];
1172: } elsif ($target eq 'tex') {
1173: $currentstring .= '}';
1174: }
1175: return $currentstring;
1176: }
1177:
1178: #-- <basefont> tag
1179: sub start_basefont {
1180: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1181: my $currentstring = '';
1182: if ($target eq 'web') {
1183: $currentstring = $token->[4];
1184: } elsif ($target eq 'tex') {
1185: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1186: if (defined $basesize) {
1187: $currentstring = '{\\'.$basesize.' ';
1188: }
1189: }
1190: return $currentstring;
1191: }
1192:
1193: sub end_basefont {
1194: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1195: my $currentstring = '';
1196: if ($target eq 'web') {
1197: $currentstring = $token->[4];
1198: } elsif ($target eq 'tex') {
1199: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1200: if (defined $basesize) {
1201: $currentstring = '}';
1202: }
1203: }
1204: return $currentstring;
1205: }
1206:
1207: #-- <font> tag
1208: sub start_font {
1209: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1210: my $currentstring = '';
1211: if ($target eq 'web') {
1212: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1213: if ($face=~/symbol/i) {
1214: $Apache::lonxml::prevent_entity_encode++;
1215: } else {
1216: if (($ENV{'browser.fontenhance'} eq 'on') ||
1217: ($ENV{'browser.blackwhite'} eq 'on')) { return ''; }
1218: }
1219: $currentstring = $token->[4];
1220: } elsif ($target eq 'tex') {
1221: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1222: if (defined $fontsize) {
1223: $currentstring = '{\\'.$fontsize.' ';
1224: }
1225: }
1226: return $currentstring;
1227: }
1228:
1229: sub end_font {
1230: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1231: my $currentstring = '';
1232: if ($target eq 'web') {
1233: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1234: if ($face=~/symbol/i) {$Apache::lonxml::prevent_entity_encode--;}
1235: $currentstring = $token->[2];
1236: } elsif ($target eq 'tex') {
1237: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1238: if (defined $fontsize) {
1239: $currentstring = '}';
1240: }
1241: }
1242: return $currentstring;
1243: }
1244:
1245: #-- <strike> tag
1246: sub start_strike {
1247: my ($target,$token) = @_;
1248: my $currentstring = '';
1249: if ($target eq 'web') {
1250: $currentstring .= $token->[4];
1251: } elsif ($target eq 'tex') {
1252: &Apache::lonxml::startredirection();
1253: }
1254: return $currentstring;
1255: }
1256:
1257: sub end_strike {
1258: my ($target,$token) = @_;
1259: my $currentstring = '';
1260: if ($target eq 'web') {
1261: $currentstring .= $token->[2];
1262: } elsif ($target eq 'tex') {
1263: $currentstring=&Apache::lonxml::endredirection();
1264: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1265: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1266: $currentstring=~s/(\S)\s*$/$1\}/;
1267: }
1268: return $currentstring;
1269: }
1270:
1271: #-- <s> tag
1272: sub start_s {
1273: my ($target,$token) = @_;
1274: my $currentstring = '';
1275: if ($target eq 'web') {
1276: $currentstring .= $token->[4];
1277: } elsif ($target eq 'tex') {
1278: &Apache::lonxml::startredirection();
1279: }
1280: return $currentstring;
1281: }
1282:
1283: sub end_s {
1284: my ($target,$token) = @_;
1285: my $currentstring = '';
1286: if ($target eq 'web') {
1287: $currentstring .= $token->[2];
1288: } elsif ($target eq 'tex') {
1289: $currentstring=&Apache::lonxml::endredirection();
1290: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1291: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1292: $currentstring=~s/(\S)\s*$/$1\}/;
1293: }
1294: return $currentstring;
1295: }
1296:
1297: #-- <sub> tag
1298: sub start_sub {
1299: my ($target,$token) = @_;
1300: my $currentstring = '';
1301: if ($target eq 'web') {
1302: $currentstring .= $token->[4];
1303: } elsif ($target eq 'tex') {
1304: $currentstring .= "\$_{ ";
1305: }
1306: return $currentstring;
1307: }
1308:
1309: sub end_sub {
1310: my ($target,$token) = @_;
1311: my $currentstring = '';
1312: if ($target eq 'web') {
1313: $currentstring .= $token->[2];
1314: } elsif ($target eq 'tex') {
1315: $currentstring .= " }\$";
1316: }
1317: return $currentstring;
1318: }
1319:
1320: #-- <sup> tag
1321: sub start_sup {
1322: my ($target,$token) = @_;
1323: my $currentstring = '';
1324: if ($target eq 'web') {
1325: $currentstring .= $token->[4];
1326: } elsif ($target eq 'tex') {
1327: $currentstring .= "\$^{ ";
1328: }
1329: return $currentstring;
1330: }
1331:
1332: sub end_sup {
1333: my ($target,$token) = @_;
1334: my $currentstring = '';
1335: if ($target eq 'web') {
1336: $currentstring .= $token->[2];
1337: } elsif ($target eq 'tex') {
1338: $currentstring .= " }\$";
1339: }
1340: return $currentstring;
1341: }
1342:
1343: #-- <hr> tag
1344: sub start_hr {
1345: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1346: my $currentstring = '';
1347: if ($target eq 'web') {
1348: $currentstring .= $token->[4];
1349: } elsif ($target eq 'tex') {
1350: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1351: if (defined $LaTeXwidth) {
1352: if ($LaTeXwidth=~/^%/) {
1353: substr($LaTeXwidth,0,1)='';
1354: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1355: }
1356: } else {
1357: $LaTeXwidth ='0.9\textwidth';
1358: }
1359: my ($pre,$post);
1360: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1361: if (($align eq 'center') || (not defined $align)) {
1362: $pre=''; $post='';
1363: } elsif ($align eq 'left') {
1364: $pre='\rlap{'; $post='} \hfill';
1365: } elsif ($align eq 'right') {
1366: $pre=' \hfill \llap{'; $post='}';
1367: }
1368: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1369: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1370: }
1371: return $currentstring;
1372: }
1373:
1374: sub end_hr {
1375: my ($target,$token) = @_;
1376: my $currentstring = '';
1377: if ($target eq 'web') {
1378: $currentstring .= $token->[2];
1379: }
1380: return $currentstring;
1381: }
1382:
1383: #-- <div> tag
1384: sub start_div {
1385: my ($target,$token) = @_;
1386: my $currentstring = '';
1387: if ($target eq 'web') {
1388: $currentstring .= $token->[4];
1389: }
1390: return $currentstring;
1391: }
1392:
1393: sub end_div {
1394: my ($target,$token) = @_;
1395: my $currentstring = '';
1396: if ($target eq 'web') {
1397: $currentstring .= $token->[2];
1398: }
1399: return $currentstring;
1400: }
1401:
1402: #-- <a> tag
1403: sub start_a {
1404: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1405: my $currentstring = '';
1406: if ($target eq 'web') {
1407: $currentstring .= $token->[4];
1408: } elsif ($target eq 'tex') {
1409: my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1410: $a=~s/([^\\])%/$1\\\%/g;
1411: $currentstring .= '\ref{'.$a.'}';
1412: }
1413: return $currentstring;
1414: }
1415:
1416: sub end_a {
1417: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1418: my $currentstring = '';
1419: if ($target eq 'web') {
1420: $currentstring .= $token->[2];
1421: }
1422: return $currentstring;
1423: }
1424:
1425: #-- <li> tag
1426: sub start_li {
1427: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1428: my $currentstring = '';
1429: if ($target eq 'web') {
1430: $currentstring = $token->[4];
1431: } elsif ($target eq 'tex') {
1432: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,1);
1433: if ($type=~/circle/) {
1434: $currentstring .= ' \item[o] ';
1435: } elsif ($type=~/square/) {
1436: $currentstring .= ' \item[$\Box$] ';
1437: } elsif ($type ne '') {
1438: $currentstring .= ' \item['.$type.'] ';
1439: } else {
1440: $currentstring .= ' \item ';
1441: }
1442: }
1443: return $currentstring;
1444: }
1445:
1446: sub end_li {
1447: my ($target,$token) = @_;
1448: my $currentstring = '';
1449: if ($target eq 'web') {
1450: $currentstring = $token->[2];
1451: }
1452: return $currentstring;
1453: }
1454:
1455: #-- <u> tag
1456: sub start_u {
1457: my ($target,$token) = @_;
1458: my $currentstring = '';
1459: if ($target eq 'web') {
1460: $currentstring .= $token->[4];
1461: } elsif ($target eq 'tex') {
1462: &Apache::lonxml::startredirection();
1463: }
1464: return $currentstring;
1465: }
1466:
1467: sub end_u {
1468: my ($target,$token) = @_;
1469: my $currentstring = '';
1470: if ($target eq 'web') {
1471: $currentstring .= $token->[2];
1472: } elsif ($target eq 'tex') {
1473: $currentstring=&Apache::lonxml::endredirection();
1474: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1475: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1476: $currentstring=~s/(\S)\s*$/$1\}/;
1477: }
1478: return $currentstring;
1479: }
1480:
1481: #-- <ul> tag
1482: sub start_ul {
1483: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1484: my $currentstring = '';
1485: if ($target eq 'web') {
1486: $currentstring = $token->[4];
1487: } elsif ($target eq 'tex') {
1488: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1489: if ($TeXtype eq 'disc') {
1490: $currentstring .= ' \renewcommand{\labelitemi}{$\bullet$}
1491: \renewcommand{\labelitemii}{$\bullet$}
1492: \renewcommand{\labelitemiii}{$\bullet$}
1493: \renewcommand{\labelitemiv}{$\bullet$}';
1494: } elsif ($TeXtype eq 'circle') {
1495: $currentstring .= ' \renewcommand{\labelitemi}{$\circ$}
1496: \renewcommand{\labelitemii}{$\circ$}
1497: \renewcommand{\labelitemiii}{$\circ$}
1498: \renewcommand{\labelitemiv}{$\circ$}';
1499: } elsif ($TeXtype eq 'square') {
1500: $currentstring .= ' \renewcommand{\labelitemi}{$\diamond$}
1501: \renewcommand{\labelitemii}{$\diamond$}
1502: \renewcommand{\labelitemiii}{$\diamond$}
1503: \renewcommand{\labelitemiv}{$\diamond$}';
1504: }
1505: $currentstring .= '\begin{itemize}';
1506: }
1507: return $currentstring;
1508: }
1509:
1510: sub end_ul {
1511: my ($target,$token) = @_;
1512: my $currentstring = '';
1513: if ($target eq 'web') {
1514: $currentstring = $token->[2];
1515: } elsif ($target eq 'tex') {
1516: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}
1517: \renewcommand{\labelitemii}{$\bullet$}
1518: \renewcommand{\labelitemiii}{$\bullet$}
1519: \renewcommand{\labelitemiv}{$\bullet$}';
1520: }
1521: return $currentstring;
1522: }
1523:
1524: #-- <menu> tag
1525: sub start_menu {
1526: my ($target,$token) = @_;
1527: my $currentstring = '';
1528: if ($target eq 'web') {
1529: $currentstring = $token->[4];
1530: } elsif ($target eq 'tex') {
1531: $currentstring = " \\begin{itemize} ";
1532: }
1533: return $currentstring;
1534: }
1535:
1536: sub end_menu {
1537: my ($target,$token) = @_;
1538: my $currentstring = '';
1539: if ($target eq 'web') {
1540: $currentstring = $token->[2];
1541: } elsif ($target eq 'tex') {
1542: $currentstring = " \\end{itemize}";
1543: }
1544: return $currentstring;
1545: }
1546:
1547: #-- <dir> tag
1548: sub start_dir {
1549: my ($target,$token) = @_;
1550: my $currentstring = '';
1551: if ($target eq 'web') {
1552: $currentstring = $token->[4];
1553: } elsif ($target eq 'tex') {
1554: $currentstring = " \\begin{itemize} ";
1555: }
1556: return $currentstring;
1557: }
1558:
1559: sub end_dir {
1560: my ($target,$token) = @_;
1561: my $currentstring = '';
1562: if ($target eq 'web') {
1563: $currentstring = $token->[2];
1564: } elsif ($target eq 'tex') {
1565: $currentstring = " \\end{itemize}";
1566: }
1567: return $currentstring;
1568: }
1569:
1570: #-- <ol> tag
1571: sub start_ol {
1572: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1573: my $currentstring = '';
1574: if ($target eq 'web') {
1575: $currentstring = $token->[4];
1576: } elsif ($target eq 'tex') {
1577: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1578: if ($type eq '1') {
1579: $currentstring .= ' \renewcommand{\labelenumi}{\arabic{enumi}.}
1580: \renewcommand{\labelenumii}{\arabic{enumii}.}
1581: \renewcommand{\labelenumiii}{\arabic{enumiii}.}
1582: \renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1583: } elsif ($type eq 'A') {
1584: $currentstring .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}
1585: \renewcommand{\labelenumii}{\Alph{enumii}.}
1586: \renewcommand{\labelenumiii}{\Alph{enumiii}.}
1587: \renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1588: } elsif ($type eq 'a') {
1589: $currentstring .= ' \renewcommand{\labelenumi}{\alph{enumi}.}
1590: \renewcommand{\labelenumii}{\alph{enumii}.}
1591: \renewcommand{\labelenumiii}{\alph{enumiii}.}
1592: \renewcommand{\labelenumiv}{\alph{enumiv}.} ';
1593: } elsif ($type eq 'i') {
1594: $currentstring .= ' \renewcommand{\labelenumi}{\roman{enumi}.}
1595: \renewcommand{\labelenumii}{\roman{enumii}.}
1596: \renewcommand{\labelenumiii}{\roman{enumiii}.}
1597: \renewcommand{\labelenumiv}{\roman{enumiv}.} ';
1598: } elsif ($type eq 'I') {
1599: $currentstring .= ' \renewcommand{\labelenumi}{\Roman{enumi}.}
1600: \renewcommand{\labelenumii}{\Roman{enumii}.}
1601: \renewcommand{\labelenumiii}{\Roman{enumiii}.}
1602: \renewcommand{\labelenumiv}{\Roman{enumiv}.} ';
1603: }
1604: $currentstring .= '\begin{enumerate}';
1605: }
1606: return $currentstring;
1607: }
1608:
1609: sub end_ol {
1610: my ($target,$token) = @_;
1611: my $currentstring = '';
1612: if ($target eq 'web') {
1613: $currentstring = $token->[2];
1614: } elsif ($target eq 'tex') {
1615: $currentstring = '\end{enumerate} \renewcommand{\labelenumi}{\arabic{enumi}.}
1616: \renewcommand{\labelenumii}{\arabic{enumii}.}
1617: \renewcommand{\labelenumiii}{\arabic{enumiii}.}
1618: \renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1619: }
1620: return $currentstring;
1621: }
1622:
1623: #-- <dl> tag
1624: sub start_dl {
1625: my ($target,$token) = @_;
1626: my $currentstring = '';
1627: if ($target eq 'web') {
1628: $currentstring = $token->[4];
1629: } elsif ($target eq 'tex') {
1630: $currentstring = '\begin{description}';
1631: }
1632: return $currentstring;
1633: }
1634:
1635: sub end_dl {
1636: my ($target,$token) = @_;
1637: my $currentstring = '';
1638: if ($target eq 'web') {
1639: $currentstring = $token->[2];
1640: } elsif ($target eq 'tex') {
1641: $currentstring = '\end{description}';
1642: }
1643: return $currentstring;
1644: }
1645:
1646: #-- <dt> tag
1647: sub start_dt {
1648: my ($target,$token) = @_;
1649: my $currentstring = '';
1650: if ($target eq 'web') {
1651: $currentstring = $token->[4];
1652: } elsif ($target eq 'tex') {
1653: $currentstring = '\item[';
1654: }
1655: return $currentstring;
1656: }
1657:
1658: sub end_dt {
1659: my ($target,$token) = @_;
1660: my $currentstring = '';
1661: if ($target eq 'web') {
1662: $currentstring = $token->[2];
1663: } elsif ($target eq 'tex') {
1664: $currentstring = ']';
1665: }
1666: return $currentstring;
1667: }
1668:
1669: #-- <dd> tag
1670: sub start_dd {
1671: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1672: my $currentstring = '';
1673: if ($target eq 'web') {
1674: $currentstring = $token->[4];
1675: } elsif ($target eq 'tex') {
1676: if ($$tagstack[-2] eq 'dl') {
1677: $currentstring = ' \item [] ';
1678: } elsif ($$tagstack[-2] eq 'dt') {
1679: $currentstring = ']';
1680: }
1681: }
1682: return $currentstring;
1683: }
1684:
1685: sub end_dd {
1686: my ($target,$token) = @_;
1687: my $currentstring = '';
1688: if ($target eq 'web') {
1689: $currentstring = $token->[2];
1690: }
1691: return $currentstring;
1692: }
1693:
1694: #-- <table> tag
1695: sub start_table {
1696: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1697: my $textwidth='';
1698: if (not defined @Apache::londefdef::table) {
1699: $textwidth=&recalc($ENV{'form.textwidth'});
1700: $textwidth=~/(\d+\.?\d*)/;
1701: $textwidth=0.95*$1;
1702: } else {
1703: $textwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1704: }
1705: my $currentstring = '';
1706: if ($target eq 'web') {
1707: $currentstring = $token->[4];
1708: } elsif ($target eq 'tex') {
1709: my $aa = {};
1710: push @Apache::londefdef::table, $aa;
1711: $Apache::londefdef::table[-1]{'row_number'} = -1;
1712: #table's width
1713: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1714: if (not defined $TeXwidth) {
1715: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,$safeeval,undef,1);
1716: if ($htmlwidth=~/%/) {
1717: $htmlwidth=~/(\d+)/;
1718: my $value=$1*$textwidth/100;
1719: $Apache::londefdef::table[-1]{'width'}=$value;
1720: } else {
1721: $Apache::londefdef::table[-1]{'width'}=$textwidth;
1722: }
1723: } elsif ($TeXwidth=~/%/) {
1724: $TeXwidth=~/(\d+)/;
1725: my $value=$1*$textwidth/100;
1726: $Apache::londefdef::table[-1]{'width'}=$value;
1727: } else {
1728: $Apache::londefdef::table[-1]{'width'}=$textwidth;
1729: }
1730: #table's border
1731: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval,undef,1);
1732: unless (defined $border) { $border = 0; }
1733: if ($border) {
1734: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
1735: $Apache::londefdef::table[-1]{'vinc'} = '&';
1736: $Apache::londefdef::table[-1]{'vvinc'} = '|';
1737: } else {
1738: $Apache::londefdef::table[-1]{'hinc'} = '';
1739: $Apache::londefdef::table[-1]{'vinc'} = '&';
1740: $Apache::londefdef::table[-1]{'vvinc'} = '';
1741: }
1742: $Apache::londefdef::table[-1]{'output'} = ' \noindent \begin{tabular} ';
1743: $currentstring = '\keephidden{NEW TABLE ENTRY}';
1744: }
1745: return $currentstring;
1746: }
1747:
1748: sub end_table {
1749: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1750: my $currentstring = '';
1751: if ($target eq 'web') {
1752: $currentstring = $token->[2];
1753: } elsif ($target eq 'tex') {
1754: my $inmemory = '';
1755: my $output = '';
1756: #construct header of the table
1757: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
1758: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'counter_columns'};$in++) {
1759: $header_of_table .= $Apache::londefdef::table[-1]{'columns'}[$in].$Apache::londefdef::table[-1]{'vvinc'};
1760: }
1761: $header_of_table .= '}';
1762: #define the length of the table cells
1763: #always starts with TeXwidth (if defined everything else is ignored)
1764: my @length_row_final = split(/,/,$Apache::londefdef::table[-1]{'TeXlengthrow'}[0]);
1765: for (my $in=1;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1766: my @length_row = split(/,/,$Apache::londefdef::table[-1]{'TeXlengthrow'}[$in]);
1767: for (my $jn=0;$jn<=$#length_row;$jn++) {
1768: if ($length_row_final[$jn]<$length_row[$jn]) {$length_row_final[$jn]=$length_row[$jn];}
1769: }
1770: }
1771: #continues trying estimate the width of raw data
1772: my @length_raw_row = split(/,/,$Apache::londefdef::table[-1]{'lengthrow'}[0]);
1773: for (my $in=1;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1774: my @length_row = split(/,/,$Apache::londefdef::table[-1]{'lengthrow'}[$in]);
1775: for (my $jn=0;$jn<=$#length_row;$jn++) {
1776: if ($length_raw_row[$jn]<$length_row[$jn]) {$length_raw_row[$jn]=$length_row[$jn];}
1777: }
1778: }
1779: #comparing of TeXwidth and raw data width
1780: my $available_length=$Apache::londefdef::table[-1]{'width'};
1781: my $needed=0;
1782: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1783: if ($length_row_final[$jn]!=0) {
1784: $available_length=$available_length-$length_row_final[$jn];
1785: $needed++;
1786: }
1787: }
1788: $needed=$#length_row_final-$needed+1;
1789: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1790: if ($length_row_final[$jn]==0) {
1791: if ($length_raw_row[$jn]<$available_length/3) {
1792: $length_row_final[$jn]=$length_raw_row[$jn];
1793: $available_length=$available_length-$length_raw_row[$jn];
1794: $needed--;
1795: }
1796: }
1797: }
1798: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1799: if ($length_row_final[$jn]==0) {
1800: $length_row_final[$jn]=0.9*$available_length/$needed;
1801: }
1802: }
1803: #fill the table
1804: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1805: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1806: my $substituted=$length_row_final[$jn];
1807: $Apache::londefdef::table[-1]{'rowdata'}[$in]=~s/TOBECHANGEDONNUMBER/$substituted mm/;
1808: }
1809: $output .= $Apache::londefdef::table[-1]{'rowdata'}[$in];
1810: chop $output;
1811: $output .= ' \\\\ ';
1812: }
1813: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$output.$Apache::londefdef::table[-1]{'hinc'}.'\end{tabular}\vskip 0 mm ';
1814: if ($#Apache::londefdef::table > 0) {
1815: my $inmemory = $Apache::londefdef::table[-1]{'output'};
1816: pop @Apache::londefdef::table;
1817: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1818: } else {
1819: $currentstring .= $Apache::londefdef::table[-1]{'output'};
1820: pop @Apache::londefdef::table;
1821: undef @Apache::londefdef::table;
1822: }
1823: }
1824: return $currentstring;
1825: }
1826:
1827: #-- <tr> tag
1828: sub start_tr {
1829: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1830: my $currentstring = '';
1831: if ($target eq 'web') {
1832: $currentstring = $token->[4];
1833: } elsif ($target eq 'tex') {
1834: $Apache::londefdef::table[-1]{'row_number'}++;
1835: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
1836: if ($alignchar ne '') {
1837: push @ {$Apache::londefdef::table[-1]{'rows'} }, $alignchar;
1838: } else {
1839: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
1840: }
1841: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
1842: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1843: $Apache::londefdef::table[-1]{'TeXlength'} = '';
1844: $Apache::londefdef::table[-1]{'length'} = '';
1845: }
1846: return $currentstring;
1847: }
1848:
1849: sub end_tr {
1850: my ($target,$token) = @_;
1851: my $currentstring = '';
1852: if ($target eq 'web') {
1853: $currentstring = $token->[2];
1854: } elsif ($target eq 'tex') {
1855: push @{ $Apache::londefdef::table[-1]{'TeXlengthrow'} },$Apache::londefdef::table[-1]{'TeXlength'};
1856: push @{ $Apache::londefdef::table[-1]{'lengthrow'} },$Apache::londefdef::table[-1]{'length'};
1857: }
1858: return $currentstring;
1859: }
1860:
1861: #-- <td> tag
1862: sub start_td {
1863: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1864: my $currentstring = '';
1865: if ($target eq 'web') {
1866: $currentstring = $token->[4];
1867: } elsif ($target eq 'tex') {
1868: my $what_to_push = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
1869: if ($what_to_push eq '') {
1870: $what_to_push = substr($Apache::londefdef::table[-1]{'rows'}[0],0,1);;
1871: }
1872: push @{ $Apache::londefdef::table[-1]{'columns'} }, $what_to_push;
1873: $Apache::londefdef::table[-1]{'counter_columns'}++;
1874: &Apache::lonxml::startredirection();
1875: }
1876: return $currentstring;
1877: }
1878:
1879: sub end_td {
1880: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1881: my $currentstring = '';
1882: if ($target eq 'web') {
1883: $currentstring = $token->[2];
1884: } elsif ($target eq 'tex') {
1885: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
1886: my $data=&Apache::lonxml::endredirection();
1887: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1888: if (defined $TeXwidth) {
1889: my $current_length=&recalc($TeXwidth);
1890: $current_length=~/(\d+)/;
1891: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
1892: $Apache::londefdef::table[-1]{'length'} .= '0,';
1893: } else {
1894: if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
1895: my $current_length=&recalc($1);
1896: $current_length=~/(\d+\.?\d*)/;
1897: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
1898: $Apache::londefdef::table[-1]{'length'} .= '0,';
1899: } else {
1900: $data=~s/^\s+(\S.*)/$1/;
1901: $data=~s/(.*\S)\s+$/$1/;
1902: my $current_length=2*length($data);
1903: $Apache::londefdef::table[-1]{'length'} .= $current_length.',';
1904: $Apache::londefdef::table[-1]{'TeXlength'} .= '0,';
1905: }
1906: }
1907: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
1908: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
1909: }
1910: @{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{TOBECHANGEDONNUMBER}{'.$data.'} '.$Apache::londefdef::table[-1]{'vinc'};
1911: }
1912: return $currentstring;
1913: }
1914:
1915: #-- <th> tag
1916: sub start_th {
1917: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1918: my $currentstring = '';
1919: if ($target eq 'web') {
1920: $currentstring = $token->[4];
1921: } elsif ($target eq 'tex') {
1922: my $what_to_push = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
1923: if ($what_to_push eq '') {
1924: $what_to_push = substr($Apache::londefdef::table[-1]{'rows'}[0],0,1);;
1925: }
1926: push @{ $Apache::londefdef::table[-1]{'columns'} }, $what_to_push;
1927: $Apache::londefdef::table[-1]{'counter_columns'}++;
1928: &Apache::lonxml::startredirection();
1929: }
1930: return $currentstring;
1931: }
1932:
1933: sub end_th {
1934: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1935: my $currentstring = '';
1936: if ($target eq 'web') {
1937: $currentstring = $token->[2];
1938: } elsif ($target eq 'tex') {
1939: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
1940: my $data=&Apache::lonxml::endredirection();
1941: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1942: if (defined $TeXwidth) {
1943: my $current_length=&recalc($TeXwidth);
1944: $current_length=~/(\d+)/;
1945: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
1946: $Apache::londefdef::table[-1]{'length'} .= '0,';
1947: } else {
1948: if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
1949: my $current_length=&recalc($1);
1950: $current_length=~/(\d+)/;
1951: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
1952: $Apache::londefdef::table[-1]{'length'} .= '0,';
1953: } else {
1954: $data=~/^\s*(\S.*)/;
1955: $data=$1;
1956: $data=~/(.*\S)\s*$/;
1957: $data=$1;
1958: my $current_length=2*length($data);
1959: $Apache::londefdef::table[-1]{'length'} .= $current_length.',';
1960: $Apache::londefdef::table[-1]{'TeXlength'} .= '0,';
1961: }
1962: }
1963: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
1964: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
1965: }
1966: $data='\textbf{'.$data.'}';
1967: @{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{TOBECHANGEDONNUMBER}{'.$data.'} '.$Apache::londefdef::table[-1]{'vinc'};
1968: }
1969: return $currentstring;
1970: }
1971: #-- <img> tag
1972: sub start_img {
1973: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1974: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
1975: undef,1);
1976: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
1977: my $currentstring = '';
1978: my $width_param = '';
1979: my $height_param = '';
1980: my $scaling = .3;
1981: if ($target eq 'web') {
1982: if ($ENV{'browser.imagesuppress'} ne 'on') {
1983: $currentstring.= $token->[4];
1984: } else {
1985: my $alttag= &Apache::lonxml::get_param
1986: ('alt',$parstack,$safeeval,undef,1);
1987: unless ($alttag) {
1988: $alttag=&Apache::lonmeta::alttag
1989: ($Apache::lonxml::pwd[-1],$src);
1990: }
1991: $currentstring.='[IMAGE: '.$alttag.']';
1992: }
1993: } elsif ($target eq 'tex') {
1994: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1995: &image_replication($src);
1996: #if original gif/jpg/png file exist do following:
1997: if (-e $src) {
1998: #defines the default size of image
1999: my $image = Image::Magick->new;
2000: my $current_figure = $image->Read($src);
2001: $width_param = $image->Get('width') * $scaling;;
2002: $height_param = $image->Get('height') * $scaling;;
2003: undef $image;
2004: #do we have any specified size of the picture?
2005: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval);
2006: my $TeXheight = &Apache::lonxml::get_param('TeXheight',$parstack,$safeeval);
2007: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
2008: undef,1);
2009: if ($TeXwidth ne '') {
2010: if ($TeXwidth=~/(\d+)\s*\%/) {
2011: $width_param = $1*$ENV{'form.textwidth'}/100;
2012: } else {
2013: $width_param = $TeXwidth;
2014: }
2015: } elsif ($TeXheight ne '') {
2016: $width_param = $TeXheight/$height_param*$width_param;
2017: } elsif ($width ne '') {
2018: $width_param = $width*$scaling;
2019: }
2020: if ($width_param > $ENV{'form.textwidth'}) {$width_param =0.95*$ENV{'form.textwidth'}}
2021: my $file;
2022: my $path;
2023: if ($src =~ m!(.*)/([^/]*)$!) {
2024: $file = $2;
2025: $path = $1.'/';
2026: }
2027: my $newsrc = $src;
2028: $newsrc =~ s/\.(gif|jpg|png)$/.eps/i;
2029: $file=~s/\.(gif|jpg|png)$/.eps/i;
2030: #where can we find the picture?
2031: if (-e $newsrc) {
2032: #eps counterpart for image exist
2033: if ($path) {
2034: $currentstring .= '\vskip 1 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
2035: }
2036: } else {
2037: #there is no eps counterpart for image - check for ps one
2038: $newsrc =~ s/\.eps$/\.ps/;
2039: if (-e $newsrc) {
2040: #ps counterpart for image exist
2041: $file =~ s/\.eps$/\.ps/;
2042: if ($path) {
2043: $currentstring .= '\vskip 1 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
2044: }
2045: } else {
2046: #there aren't eps or ps - so create eps
2047: my $temp_file;
2048: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.dat";
2049: $temp_file = Apache::File->new('>>'.$filename);
2050: print $temp_file "$src\n";
2051: $currentstring .= '\vskip 1 mm \graphicspath{{/home/httpd/prtspool/}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
2052: }
2053: }
2054: } else {
2055: #original image file doesn't exist so check the alt attribute
2056: my $alt =
2057: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2058: unless ($alt) {
2059: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2060: }
2061:
2062: if ($alt) {
2063: $currentstring .= ' '.$alt.' ';
2064: } else {
2065: #<allow> tag will care about replication
2066: }
2067: }
2068: }
2069: return $currentstring;
2070: }
2071:
2072: sub end_img {
2073: my ($target,$token) = @_;
2074: my $currentstring = '';
2075: if ($target eq 'web') {
2076: $currentstring = $token->[2];
2077: } elsif ($target eq 'tex') {
2078: $currentstring = '';
2079: }
2080: return $currentstring;
2081: }
2082:
2083: #-- <applet> tag
2084: sub start_applet {
2085: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2086:
2087: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
2088: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$code;
2089:
2090: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2091: undef,1);
2092: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$archive;
2093:
2094: my $currentstring = '';
2095: if ($target eq 'web') {
2096: if ($ENV{'browser.appletsuppress'} ne 'on') {
2097: $currentstring = $token->[4];
2098: } else {
2099: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2100: $safeeval,undef,1);
2101: unless ($alttag) {
2102: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2103: $code);
2104: }
2105: $currentstring='[APPLET: '.$alttag.']';
2106: }
2107: } elsif ($target eq 'tex') {
2108: $currentstring = " \\begin{figure} ";
2109: }
2110: return $currentstring;
2111: }
2112:
2113: sub end_applet {
2114: my ($target,$token) = @_;
2115: my $currentstring = '';
2116: if ($target eq 'web') {
2117: $currentstring = $token->[2];
2118: } elsif ($target eq 'tex') {
2119: $currentstring = " \\end{figure}";
2120: }
2121: return $currentstring;
2122: }
2123:
2124: #-- <embed> tag
2125: sub start_embed {
2126: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2127: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2128: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
2129: my $currentstring = '';
2130: if ($target eq 'web') {
2131: if ($ENV{'browser.embedsuppress'} ne 'on') {
2132: $currentstring = $token->[4];
2133: } else {
2134: my $alttag=&Apache::lonxml::get_param
2135: ('alt',$parstack,$safeeval,undef,1);
2136: unless ($alttag) {
2137: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2138: }
2139: $currentstring='[EMBED: '.$alttag.']';
2140: }
2141: } elsif ($target eq 'tex') {
2142: $currentstring = " \\begin{figure} ";
2143: }
2144: return $currentstring;
2145: }
2146:
2147: sub end_embed {
2148: my ($target,$token) = @_;
2149: my $currentstring = '';
2150: if ($target eq 'web') {
2151: $currentstring = $token->[2];
2152: } elsif ($target eq 'tex') {
2153: $currentstring = " \\end{figure}";
2154: }
2155: return $currentstring;
2156: }
2157:
2158: #-- <param> tag
2159: sub start_param {
2160: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2161: if (&Apache::lonxml::get_param
2162: ('name',$parstack,$safeeval,undef,1)=~/^cabbase$/i) {
2163: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2164: &Apache::lonxml::get_param('value',$parstack,$safeeval,undef,1);
2165: }
2166: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2167: &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2168: my $currentstring = '';
2169: if ($target eq 'web') {
2170: $currentstring = $token->[4];
2171: } elsif ($target eq 'tex') {
2172: $currentstring = " \\begin{figure} ";
2173: }
2174: return $currentstring;
2175: }
2176:
2177: sub end_param {
2178: my ($target,$token) = @_;
2179: my $currentstring = '';
2180: if ($target eq 'web') {
2181: $currentstring = $token->[2];
2182: } elsif ($target eq 'tex') {
2183: $currentstring = " \\end{figure}";
2184: }
2185: return $currentstring;
2186: }
2187:
2188: #-- <allow> tag
2189: sub start_allow {
2190: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2191: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2192: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
2193: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2194: &Apache::lonnet::clutter($src);
2195: &image_replication($src);
2196: my $result;
2197: if ($target eq 'edit') {
2198: $result .=&Apache::edit::tag_start($target,$token);
2199: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
2200: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
2201: } elsif ($target eq 'modified') {
2202: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2203: $safeeval,'src');
2204: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2205: }
2206: return $result;
2207: }
2208:
2209: sub end_allow {
2210: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2211: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
2212: return '';
2213: }
2214:
2215: #-- Frames
2216: sub start_frameset {
2217: my ($target,$token) = @_;
2218: my $currentstring = '';
2219: if ($target eq 'web') {
2220: if (!$Apache::lonxml::registered) {
2221: $currentstring.='<head>'.
2222: &Apache::lonmenu::registerurl(undef,$target).'</head>';
2223: }
2224: my $onLoad='';
2225: foreach my $key (keys(%{$token->[2]})) {
2226: if ($key =~ /^onload$/i) {
2227: $onLoad.=$token->[2]->{$key}.';';
2228: delete($token->[2]->{$key});
2229: }
2230: }
2231: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
2232: my $onUnload='';
2233: foreach my $key (keys(%{$token->[2]})) {
2234: if ($key =~ /^onunload$/i) {
2235: $onUnload.=$token->[2]->{$key}.';';
2236: delete($token->[2]->{$key});
2237: }
2238: }
2239: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
2240: ';'.$onUnload;
2241:
2242: $currentstring .= '<'.$token->[1];
2243: foreach (keys %{$token->[2]}) {
2244: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
2245: }
2246: $currentstring.='>';
2247: }
2248: return $currentstring;
2249: }
2250:
2251: sub end_frameset {
2252: my ($target,$token) = @_;
2253: my $currentstring = '';
2254: if ($target eq 'web') {
2255: $currentstring = $token->[2];
2256: }
2257: return $currentstring;
2258: }
2259:
2260: #-- <pre>
2261: sub start_pre {
2262: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2263: my $currentstring = '';
2264: if ($target eq 'web') {
2265: $currentstring .= $token->[4];
2266: } elsif ($target eq 'tex') {
2267: $currentstring .= '\begin{verbatim}';
2268: }
2269: return $currentstring;
2270: }
2271:
2272: sub end_pre {
2273: my ($target,$token) = @_;
2274: my $currentstring = '';
2275: if ($target eq 'web') {
2276: $currentstring .= $token->[2];
2277: } elsif ($target eq 'tex') {
2278: $currentstring .= '\end{verbatim}';
2279: }
2280: return $currentstring;
2281: }
2282:
2283: #-- <insert>
2284: sub start_insert {
2285: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2286: my $currentstring = '';
2287: if ($target eq 'web') {
2288: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2289: $currentstring .= '<b>'.$display.'</b>';;
2290: }
2291: return $currentstring;
2292: }
2293:
2294: sub end_insert {
2295: my ($target,$token) = @_;
2296: my $currentstring = '';
2297: if ($target eq 'web') {
2298: $currentstring .= '';
2299: }
2300: return $currentstring;
2301: }
2302:
2303: #-- <externallink>
2304: sub start_externallink {
2305: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2306: my $currentstring = '';
2307: if ($target eq 'web') {
2308: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2309: $currentstring .= '<b>'.$display.'</b>';;
2310: }
2311: return $currentstring;
2312: }
2313:
2314: sub end_externallink {
2315: my ($target,$token) = @_;
2316: my $currentstring = '';
2317: if ($target eq 'web') {
2318: $currentstring .= '';
2319: }
2320: return $currentstring;
2321: }
2322:
2323: #-- <blankspace heigth="">
2324: sub start_blankspace {
2325: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2326: my $currentstring = '';
2327: if ($target eq 'tex') {
2328: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
2329: $currentstring .= '\vskip '.$howmuch.' ';
2330: }
2331: return $currentstring;
2332: }
2333:
2334: sub end_blankspace {
2335: my ($target,$token) = @_;
2336: my $currentstring = '';
2337: if ($target eq 'tex') {
2338: $currentstring .= '';
2339: }
2340: return $currentstring;
2341: }
2342:
2343: #-- <abbr> tag
2344: sub start_abbr {
2345: my ($target,$token) = @_;
2346: my $currentstring = '';
2347: if ($target eq 'web') {
2348: $currentstring = $token->[4];
2349: }
2350: return $currentstring;
2351: }
2352:
2353: sub end_abbr {
2354: my ($target,$token) = @_;
2355: my $currentstring = '';
2356: if ($target eq 'web') {
2357: $currentstring = $token->[2];
2358: }
2359: return $currentstring;
2360: }
2361:
2362: #-- <acronym> tag
2363: sub start_acronym {
2364: my ($target,$token) = @_;
2365: my $currentstring = '';
2366: if ($target eq 'web') {
2367: $currentstring = $token->[4];
2368: }
2369: return $currentstring;
2370: }
2371:
2372: sub end_acronym {
2373: my ($target,$token) = @_;
2374: my $currentstring = '';
2375: if ($target eq 'web') {
2376: $currentstring = $token->[2];
2377: }
2378: return $currentstring;
2379: }
2380:
2381: #-- <area> tag
2382: sub start_area {
2383: my ($target,$token) = @_;
2384: my $currentstring = '';
2385: if ($target eq 'web') {
2386: $currentstring = $token->[4];
2387: }
2388: return $currentstring;
2389: }
2390:
2391: sub end_area {
2392: my ($target,$token) = @_;
2393: my $currentstring = '';
2394: if ($target eq 'web') {
2395: $currentstring = $token->[2];
2396: }
2397: return $currentstring;
2398: }
2399:
2400: #-- <base> tag
2401: sub start_base {
2402: my ($target,$token) = @_;
2403: my $currentstring = '';
2404: if ($target eq 'web') {
2405: $currentstring = $token->[4];
2406: }
2407: return $currentstring;
2408: }
2409:
2410: sub end_base {
2411: my ($target,$token) = @_;
2412: my $currentstring = '';
2413: if ($target eq 'web') {
2414: $currentstring = $token->[2];
2415: }
2416: return $currentstring;
2417: }
2418:
2419: #-- <bdo> tag
2420: sub start_bdo {
2421: my ($target,$token) = @_;
2422: my $currentstring = '';
2423: if ($target eq 'web') {
2424: $currentstring = $token->[4];
2425: }
2426: return $currentstring;
2427: }
2428:
2429: sub end_bdo {
2430: my ($target,$token) = @_;
2431: my $currentstring = '';
2432: if ($target eq 'web') {
2433: $currentstring = $token->[2];
2434: }
2435: return $currentstring;
2436: }
2437:
2438: #-- <bgsound> tag
2439: sub start_bgsound {
2440: my ($target,$token) = @_;
2441: my $currentstring = '';
2442: if ($target eq 'web') {
2443: $currentstring = $token->[4];
2444: }
2445: return $currentstring;
2446: }
2447:
2448: sub end_bgsound {
2449: my ($target,$token) = @_;
2450: my $currentstring = '';
2451: if ($target eq 'web') {
2452: $currentstring = $token->[2];
2453: }
2454: return $currentstring;
2455: }
2456:
2457: #-- <blink> tag
2458: sub start_blink {
2459: my ($target,$token) = @_;
2460: my $currentstring = '';
2461: if ($target eq 'web') {
2462: $currentstring = $token->[4];
2463: }
2464: return $currentstring;
2465: }
2466:
2467: sub end_blink {
2468: my ($target,$token) = @_;
2469: my $currentstring = '';
2470: if ($target eq 'web') {
2471: $currentstring = $token->[2];
2472: }
2473: return $currentstring;
2474: }
2475:
2476: #-- <blockquote> tag
2477: sub start_blockquote {
2478: my ($target,$token) = @_;
2479: my $currentstring = '';
2480: if ($target eq 'web') {
2481: $currentstring = $token->[4];
2482: }
2483: return $currentstring;
2484: }
2485:
2486: sub end_blockquote {
2487: my ($target,$token) = @_;
2488: my $currentstring = '';
2489: if ($target eq 'web') {
2490: $currentstring = $token->[2];
2491: }
2492: return $currentstring;
2493: }
2494:
2495: #-- <button> tag
2496: sub start_button {
2497: my ($target,$token) = @_;
2498: my $currentstring = '';
2499: if ($target eq 'web') {
2500: $currentstring = $token->[4];
2501: }
2502: return $currentstring;
2503: }
2504:
2505: sub end_button {
2506: my ($target,$token) = @_;
2507: my $currentstring = '';
2508: if ($target eq 'web') {
2509: $currentstring = $token->[2];
2510: }
2511: return $currentstring;
2512: }
2513:
2514: #-- <caption> tag
2515: sub start_caption {
2516: my ($target,$token) = @_;
2517: my $currentstring = '';
2518: if ($target eq 'web') {
2519: $currentstring = $token->[4];
2520: }
2521: return $currentstring;
2522: }
2523:
2524: sub end_caption {
2525: my ($target,$token) = @_;
2526: my $currentstring = '';
2527: if ($target eq 'web') {
2528: $currentstring = $token->[2];
2529: }
2530: return $currentstring;
2531: }
2532:
2533: #-- <col> tag
2534: sub start_col {
2535: my ($target,$token) = @_;
2536: my $currentstring = '';
2537: if ($target eq 'web') {
2538: $currentstring = $token->[4];
2539: }
2540: return $currentstring;
2541: }
2542:
2543: sub end_col {
2544: my ($target,$token) = @_;
2545: my $currentstring = '';
2546: if ($target eq 'web') {
2547: $currentstring = $token->[2];
2548: }
2549: return $currentstring;
2550: }
2551:
2552: #-- <colgroup> tag
2553: sub start_colgroup {
2554: my ($target,$token) = @_;
2555: my $currentstring = '';
2556: if ($target eq 'web') {
2557: $currentstring = $token->[4];
2558: }
2559: return $currentstring;
2560: }
2561:
2562: sub end_colgroup {
2563: my ($target,$token) = @_;
2564: my $currentstring = '';
2565: if ($target eq 'web') {
2566: $currentstring = $token->[2];
2567: }
2568: return $currentstring;
2569: }
2570:
2571: #-- <del> tag
2572: sub start_del {
2573: my ($target,$token) = @_;
2574: my $currentstring = '';
2575: if ($target eq 'web') {
2576: $currentstring = $token->[4];
2577: }
2578: return $currentstring;
2579: }
2580:
2581: sub end_del {
2582: my ($target,$token) = @_;
2583: my $currentstring = '';
2584: if ($target eq 'web') {
2585: $currentstring = $token->[2];
2586: }
2587: return $currentstring;
2588: }
2589:
2590: #-- <fieldset> tag
2591: sub start_fieldset {
2592: my ($target,$token) = @_;
2593: my $currentstring = '';
2594: if ($target eq 'web') {
2595: $currentstring = $token->[4];
2596: }
2597: return $currentstring;
2598: }
2599:
2600: sub end_fieldset {
2601: my ($target,$token) = @_;
2602: my $currentstring = '';
2603: if ($target eq 'web') {
2604: $currentstring = $token->[2];
2605: }
2606: return $currentstring;
2607: }
2608:
2609: #-- <frame> tag
2610: sub start_frame {
2611: my ($target,$token) = @_;
2612: my $currentstring = '';
2613: if ($target eq 'web') {
2614: $currentstring = $token->[4];
2615: }
2616: return $currentstring;
2617: }
2618:
2619: sub end_frame {
2620: my ($target,$token) = @_;
2621: my $currentstring = '';
2622: if ($target eq 'web') {
2623: $currentstring = $token->[2];
2624: }
2625: return $currentstring;
2626: }
2627:
2628: #-- <iframe> tag
2629: sub start_iframe {
2630: my ($target,$token) = @_;
2631: my $currentstring = '';
2632: if ($target eq 'web') {
2633: $currentstring = $token->[4];
2634: }
2635: return $currentstring;
2636: }
2637:
2638: sub end_iframe {
2639: my ($target,$token) = @_;
2640: my $currentstring = '';
2641: if ($target eq 'web') {
2642: $currentstring = $token->[2];
2643: }
2644: return $currentstring;
2645: }
2646:
2647: #-- <ins> tag
2648: sub start_ins {
2649: my ($target,$token) = @_;
2650: my $currentstring = '';
2651: if ($target eq 'web') {
2652: $currentstring = $token->[4];
2653: }
2654: return $currentstring;
2655: }
2656:
2657: sub end_ins {
2658: my ($target,$token) = @_;
2659: my $currentstring = '';
2660: if ($target eq 'web') {
2661: $currentstring = $token->[2];
2662: }
2663: return $currentstring;
2664: }
2665:
2666: #-- <isindex> tag
2667: sub start_isindex {
2668: my ($target,$token) = @_;
2669: my $currentstring = '';
2670: if ($target eq 'web') {
2671: $currentstring = $token->[4];
2672: }
2673: return $currentstring;
2674: }
2675:
2676: sub end_isindex {
2677: my ($target,$token) = @_;
2678: my $currentstring = '';
2679: if ($target eq 'web') {
2680: $currentstring = $token->[2];
2681: }
2682: return $currentstring;
2683: }
2684:
2685: #-- <keygen> tag
2686: sub start_keygen {
2687: my ($target,$token) = @_;
2688: my $currentstring = '';
2689: if ($target eq 'web') {
2690: $currentstring = $token->[4];
2691: }
2692: return $currentstring;
2693: }
2694:
2695: sub end_keygen {
2696: my ($target,$token) = @_;
2697: my $currentstring = '';
2698: if ($target eq 'web') {
2699: $currentstring = $token->[2];
2700: }
2701: return $currentstring;
2702: }
2703:
2704: #-- <label> tag
2705: sub start_label {
2706: my ($target,$token) = @_;
2707: my $currentstring = '';
2708: if ($target eq 'web') {
2709: $currentstring = $token->[4];
2710: }
2711: return $currentstring;
2712: }
2713:
2714: sub end_label {
2715: my ($target,$token) = @_;
2716: my $currentstring = '';
2717: if ($target eq 'web') {
2718: $currentstring = $token->[2];
2719: }
2720: return $currentstring;
2721: }
2722:
2723: #-- <layer> tag
2724: sub start_layer {
2725: my ($target,$token) = @_;
2726: my $currentstring = '';
2727: if ($target eq 'web') {
2728: $currentstring = $token->[4];
2729: }
2730: return $currentstring;
2731: }
2732:
2733: sub end_layer {
2734: my ($target,$token) = @_;
2735: my $currentstring = '';
2736: if ($target eq 'web') {
2737: $currentstring = $token->[2];
2738: }
2739: return $currentstring;
2740: }
2741:
2742: #-- <legend> tag
2743: sub start_legend {
2744: my ($target,$token) = @_;
2745: my $currentstring = '';
2746: if ($target eq 'web') {
2747: $currentstring = $token->[4];
2748: }
2749: return $currentstring;
2750: }
2751:
2752: sub end_legend {
2753: my ($target,$token) = @_;
2754: my $currentstring = '';
2755: if ($target eq 'web') {
2756: $currentstring = $token->[2];
2757: }
2758: return $currentstring;
2759: }
2760:
2761: #-- <link> tag
2762: sub start_link {
2763: my ($target,$token) = @_;
2764: my $currentstring = '';
2765: if ($target eq 'web') {
2766: $currentstring = $token->[4];
2767: }
2768: return $currentstring;
2769: }
2770:
2771: sub end_link {
2772: my ($target,$token) = @_;
2773: my $currentstring = '';
2774: if ($target eq 'web') {
2775: $currentstring = $token->[2];
2776: }
2777: return $currentstring;
2778: }
2779:
2780: #-- <marquee> tag
2781: sub start_marquee {
2782: my ($target,$token) = @_;
2783: my $currentstring = '';
2784: if ($target eq 'web') {
2785: $currentstring = $token->[4];
2786: }
2787: return $currentstring;
2788: }
2789:
2790: sub end_marquee {
2791: my ($target,$token) = @_;
2792: my $currentstring = '';
2793: if ($target eq 'web') {
2794: $currentstring = $token->[2];
2795: }
2796: return $currentstring;
2797: }
2798:
2799: #-- <malticol> tag
2800: sub start_malticol {
2801: my ($target,$token) = @_;
2802: my $currentstring = '';
2803: if ($target eq 'web') {
2804: $currentstring = $token->[4];
2805: }
2806: return $currentstring;
2807: }
2808:
2809: sub end_malticol {
2810: my ($target,$token) = @_;
2811: my $currentstring = '';
2812: if ($target eq 'web') {
2813: $currentstring = $token->[2];
2814: }
2815: return $currentstring;
2816: }
2817:
2818: #-- <nobr> tag
2819: sub start_nobr {
2820: my ($target,$token) = @_;
2821: my $currentstring = '';
2822: if ($target eq 'web') {
2823: $currentstring = $token->[4];
2824: }
2825: return $currentstring;
2826: }
2827:
2828: sub end_nobr {
2829: my ($target,$token) = @_;
2830: my $currentstring = '';
2831: if ($target eq 'web') {
2832: $currentstring = $token->[2];
2833: }
2834: return $currentstring;
2835: }
2836:
2837: #-- <noembed> tag
2838: sub start_noembed {
2839: my ($target,$token) = @_;
2840: my $currentstring = '';
2841: if ($target eq 'web') {
2842: $currentstring = $token->[4];
2843: }
2844: return $currentstring;
2845: }
2846:
2847: sub end_noembed {
2848: my ($target,$token) = @_;
2849: my $currentstring = '';
2850: if ($target eq 'web') {
2851: $currentstring = $token->[2];
2852: }
2853: return $currentstring;
2854: }
2855:
2856: #-- <noframes> tag
2857: sub start_noframes {
2858: my ($target,$token) = @_;
2859: my $currentstring = '';
2860: if ($target eq 'web') {
2861: $currentstring = $token->[4];
2862: }
2863: return $currentstring;
2864: }
2865:
2866: sub end_noframes {
2867: my ($target,$token) = @_;
2868: my $currentstring = '';
2869: if ($target eq 'web') {
2870: $currentstring = $token->[2];
2871: }
2872: return $currentstring;
2873: }
2874:
2875: #-- <nolayer> tag
2876: sub start_nolayer {
2877: my ($target,$token) = @_;
2878: my $currentstring = '';
2879: if ($target eq 'web') {
2880: $currentstring = $token->[4];
2881: }
2882: return $currentstring;
2883: }
2884:
2885: sub end_nolayer {
2886: my ($target,$token) = @_;
2887: my $currentstring = '';
2888: if ($target eq 'web') {
2889: $currentstring = $token->[2];
2890: }
2891: return $currentstring;
2892: }
2893:
2894: #-- <noscript> tag
2895: sub start_noscript {
2896: my ($target,$token) = @_;
2897: my $currentstring = '';
2898: if ($target eq 'web') {
2899: $currentstring = $token->[4];
2900: }
2901: return $currentstring;
2902: }
2903:
2904: sub end_noscript {
2905: my ($target,$token) = @_;
2906: my $currentstring = '';
2907: if ($target eq 'web') {
2908: $currentstring = $token->[2];
2909: }
2910: return $currentstring;
2911: }
2912:
2913: #-- <object> tag
2914: sub start_object {
2915: my ($target,$token) = @_;
2916: my $currentstring = '';
2917: if ($target eq 'web') {
2918: $currentstring = $token->[4];
2919: }
2920: return $currentstring;
2921: }
2922:
2923: sub end_object {
2924: my ($target,$token) = @_;
2925: my $currentstring = '';
2926: if ($target eq 'web') {
2927: $currentstring = $token->[2];
2928: }
2929: return $currentstring;
2930: }
2931:
2932: #-- <optgroup> tag
2933: sub start_optgroup {
2934: my ($target,$token) = @_;
2935: my $currentstring = '';
2936: if ($target eq 'web') {
2937: $currentstring = $token->[4];
2938: }
2939: return $currentstring;
2940: }
2941:
2942: sub end_optgroup {
2943: my ($target,$token) = @_;
2944: my $currentstring = '';
2945: if ($target eq 'web') {
2946: $currentstring = $token->[2];
2947: }
2948: return $currentstring;
2949: }
2950:
2951: #-- <samp> tag
2952: sub start_samp {
2953: my ($target,$token) = @_;
2954: my $currentstring = '';
2955: if ($target eq 'web') {
2956: $currentstring = $token->[4];
2957: }
2958: return $currentstring;
2959: }
2960:
2961: sub end_samp {
2962: my ($target,$token) = @_;
2963: my $currentstring = '';
2964: if ($target eq 'web') {
2965: $currentstring = $token->[2];
2966: }
2967: return $currentstring;
2968: }
2969:
2970: #-- <server> tag
2971: sub start_server {
2972: my ($target,$token) = @_;
2973: my $currentstring = '';
2974: if ($target eq 'web') {
2975: $currentstring = $token->[4];
2976: }
2977: return $currentstring;
2978: }
2979:
2980: sub end_server {
2981: my ($target,$token) = @_;
2982: my $currentstring = '';
2983: if ($target eq 'web') {
2984: $currentstring = $token->[2];
2985: }
2986: return $currentstring;
2987: }
2988:
2989: #-- <spacer> tag
2990: sub start_spacer {
2991: my ($target,$token) = @_;
2992: my $currentstring = '';
2993: if ($target eq 'web') {
2994: $currentstring = $token->[4];
2995: }
2996: return $currentstring;
2997: }
2998:
2999: sub end_spacer {
3000: my ($target,$token) = @_;
3001: my $currentstring = '';
3002: if ($target eq 'web') {
3003: $currentstring = $token->[2];
3004: }
3005: return $currentstring;
3006: }
3007:
3008: #-- <span> tag
3009: sub start_span {
3010: my ($target,$token) = @_;
3011: my $currentstring = '';
3012: if ($target eq 'web') {
3013: $currentstring = $token->[4];
3014: }
3015: return $currentstring;
3016: }
3017:
3018: sub end_span {
3019: my ($target,$token) = @_;
3020: my $currentstring = '';
3021: if ($target eq 'web') {
3022: $currentstring = $token->[2];
3023: }
3024: return $currentstring;
3025: }
3026:
3027: #-- <tbody> tag
3028: sub start_tbody {
3029: my ($target,$token) = @_;
3030: my $currentstring = '';
3031: if ($target eq 'web') {
3032: $currentstring = $token->[4];
3033: }
3034: return $currentstring;
3035: }
3036:
3037: sub end_tbody {
3038: my ($target,$token) = @_;
3039: my $currentstring = '';
3040: if ($target eq 'web') {
3041: $currentstring = $token->[2];
3042: }
3043: return $currentstring;
3044: }
3045:
3046: #-- <tfoot> tag
3047: sub start_tfoot {
3048: my ($target,$token) = @_;
3049: my $currentstring = '';
3050: if ($target eq 'web') {
3051: $currentstring = $token->[4];
3052: }
3053: return $currentstring;
3054: }
3055:
3056: sub end_tfoot {
3057: my ($target,$token) = @_;
3058: my $currentstring = '';
3059: if ($target eq 'web') {
3060: $currentstring = $token->[2];
3061: }
3062: return $currentstring;
3063: }
3064:
3065: #-- <thead> tag
3066: sub start_thead {
3067: my ($target,$token) = @_;
3068: my $currentstring = '';
3069: if ($target eq 'web') {
3070: $currentstring = $token->[4];
3071: }
3072: return $currentstring;
3073: }
3074:
3075: sub end_thead {
3076: my ($target,$token) = @_;
3077: my $currentstring = '';
3078: if ($target eq 'web') {
3079: $currentstring = $token->[2];
3080: }
3081: return $currentstring;
3082: }
3083:
3084: #-- <var> tag
3085: sub start_var {
3086: my ($target,$token) = @_;
3087: my $currentstring = '';
3088: if ($target eq 'web') {
3089: $currentstring = $token->[4];
3090: }
3091: return $currentstring;
3092: }
3093:
3094: sub end_var {
3095: my ($target,$token) = @_;
3096: my $currentstring = '';
3097: if ($target eq 'web') {
3098: $currentstring = $token->[2];
3099: }
3100: return $currentstring;
3101: }
3102:
3103: #-- <wbr> tag
3104: sub start_wbr {
3105: my ($target,$token) = @_;
3106: my $currentstring = '';
3107: if ($target eq 'web') {
3108: $currentstring = $token->[4];
3109: }
3110: return $currentstring;
3111: }
3112:
3113: sub end_wbr {
3114: my ($target,$token) = @_;
3115: my $currentstring = '';
3116: if ($target eq 'web') {
3117: $currentstring = $token->[2];
3118: }
3119: return $currentstring;
3120: }
3121:
3122:
3123: #-- <hideweboutput> tag
3124: sub start_hideweboutput {
3125: my ($target,$token) = @_;
3126: if ($target eq 'web') {
3127: &Apache::lonxml::startredirection();
3128: }
3129: return '';
3130: }
3131:
3132: sub end_hideweboutput {
3133: my ($target,$token) = @_;
3134: my $currentstring = '';
3135: if ($target eq 'web') {
3136: $currentstring = &Apache::lonxml::endredirection();
3137: }
3138: return '';
3139: }
3140:
3141:
3142: sub image_replication {
3143: my $src = shift;
3144: if (not -e $src) {
3145: #replicates image itself
3146: &Apache::lonnet::repcopy($src);
3147: #replicates eps or ps
3148: my $newsrc = $src;
3149: $newsrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
3150: if (not -e $newsrc) {
3151: if (&Apache::lonnet::repcopy($newsrc) ne 'OK') {
3152: $newsrc =~ s/\.eps$/\.ps/;
3153: &Apache::lonnet::repcopy($newsrc);
3154: }
3155: }
3156: }
3157: return '';
3158: }
3159:
3160: sub recalc {
3161: my $argument = shift;
3162: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
3163: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
3164: my $value=$1;
3165: my $units=$2;
3166: if ($units eq 'cm') {
3167: $value*=10;
3168: } elsif ($units eq 'in') {
3169: $value*=25.4;
3170: } elsif ($units eq 'pc') {
3171: $value*=(25.4*12/72.27);
3172: } elsif ($units eq 'pt') {
3173: $value*=(25.4/72.27);
3174: }
3175: return $value.' mm';
3176: }
3177:
3178: 1;
3179: __END__
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