1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
4: # $Id: londefdef.pm,v 1.171 2003/09/05 19:35:40 sakharuk 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: $Apache::londefdef::TD_redirection=0;
55:
56: BEGIN {
57:
58: &Apache::lonxml::register('Apache::londefdef',('a','abbr','acronym','accessrule','address','allow','applet','area','b','base','basefont','bgo','bgsound','big','blink','blockquote','blankspace','body','br','button','caption','center','cite','code','col','colgroup','dd','del','dfn','dir','div','dl','dt','em','embed','externallink','fieldset','font','form','frame','frameset','h1','h2','h3','h4','h5','h6','head','hr','html','i','iframe','img','input','ins','insert','isindex','kbd','keygen','label','layer','legend','li','link','m','map','marquee','menu','meta','multicol','nobr','noembed','noframes','nolayer','noscript','object','ol','optgroup','option','output','p','param','pre','q','s','samp','select','server','small','spacer','span','strike','strong','sub','sup','table','tbody','td','textarea','tfoot','th','thead','title','tr','tt','tthoption','u','ul','var','wbr','hideweboutput'));
59:
60: }
61:
62: #======================= TAG SUBROUTINES =====================
63: #-- <output>
64: sub start_output {
65: my ($target) = @_;
66: if ($target eq 'meta') { $Apache::lonxml::metamode--; }
67: return '';
68: }
69: sub end_output {
70: my ($target) = @_;
71: if ($target eq 'meta') { $Apache::lonxml::metamode++; }
72: return '';
73: }
74: #-- <m> tag
75: sub start_m {
76: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
77: my $currentstring = '';
78: if ($target eq 'web') {
79: $Apache::lonxml::prevent_entity_encode++;
80: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
81: $inside ='\\documentstyle{article}'.$inside;
82: &Apache::lonxml::debug("M is starting with:$inside:");
83: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
84: if ($eval eq 'on') {
85: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
86: #&Apache::lonxml::debug("M is evaulated to:$inside:");
87: }
88: $currentstring = &Apache::lontexconvert::converted(\$inside);
89: if ($Apache::lontexconvert::errorstring) {
90: &Apache::lonxml::warning("tth error: ".
91: $Apache::lontexconvert::errorstring);
92: $Apache::lontexconvert::errorstring='';
93: }
94: #&Apache::lonxml::debug("M is ends with:$currentstring:");
95: } elsif ($target eq 'tex') {
96: $currentstring = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
97: if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
98: } else {
99: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
100: }
101: return $currentstring;
102: }
103:
104: sub end_m {
105: my ($target,$token) = @_;
106: my $currentstring = '';
107: if ($target eq 'web') {
108: $Apache::lonxml::prevent_entity_encode--;
109: } elsif ($target eq 'tex') {
110: $currentstring = "";
111: } elsif ($target eq 'meta') {
112: }
113: return $currentstring;
114: }
115:
116: sub start_tthoption {
117: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
118: my $result;
119: if ($target eq 'web') {
120: my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser);
121: $inside=~s/^\s*//;
122: if ($ENV{'browser.mathml'}) {
123: &tth::ttmoptions($inside);
124: } else {
125: &tth::tthoptions($inside);
126: }
127: }
128: return $result;
129: }
130:
131: sub end_tthoption {
132: my ($target,$token) = @_;
133: my $result;
134: return $result;
135: }
136:
137: #-- <html> tag
138: sub start_html {
139: my ($target,$token) = @_;
140: my $currentstring = '';
141: if ($ENV{'browser.mathml'}) {
142: &tth::ttminit();
143: if ($ENV{'browser.unicode'}) {
144: &tth::ttmoptions('-L -u1');
145: } else {
146: &tth::ttmoptions('-L -u0');
147: }
148: } else {
149: &tth::tthinit();
150: if ($ENV{'browser.unicode'}) {
151: &tth::tthoptions('-L -u1');
152: } else {
153: &tth::tthoptions('-L -u0');
154: }
155: }
156: if ($target eq 'web') {
157: $currentstring = &Apache::lonxml::xmlbegin().
158: &Apache::lonxml::fontsettings();
159: } elsif ($target eq 'tex') {
160: @Apache::londefdef::table = ();
161: $currentstring .= '\documentclass[letterpaper]{article}';
162: if ($ENV{'form.latex_type'}=~'batchmode') {$currentstring .='\batchmode';}
163: $currentstring .= '\newcommand{\keephidden}[1]{}
164: \renewcommand{\deg}{$^{\circ}$}
165: \usepackage{longtable}
166: \usepackage{textcomp}
167: \usepackage{makeidx}
168: \usepackage[dvips]{graphicx}
169: \usepackage{epsfig}\usepackage{calc}
170: \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}}
171: \renewenvironment{theindex}{\begin{list}{}{{\vskip 1mm \noindent \large\textbf{Index}} \newline \setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.01in}\setlength{\itemsep}{0.1in}\setlength{\parsep}{-0.02in}\setlength{\belowdisplayskip}{0.01in}\setlength{\abovedisplayskip}{0.01in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.01in}}}{\end{list}}';
172: }
173: return $currentstring;
174: }
175:
176: sub end_html {
177: my ($target,$token) = @_;
178: my $currentstring = '';
179: if ($target eq 'web') {
180: $currentstring = &Apache::lonxml::xmlend();
181: }
182: return $currentstring;
183: }
184:
185: #-- <head> tag
186: sub start_head {
187: my ($target,$token) = @_;
188: my $currentstring = '';
189: if ($target eq 'web') {
190: $currentstring = $token->[4];
191: }
192: return $currentstring;
193: }
194:
195: sub end_head {
196: my ($target,$token) = @_;
197: my $currentstring = '';
198: if ($target eq 'web') {
199: $currentstring = &Apache::lonmenu::registerurl(undef,$target).
200: $token->[2];
201: }
202: return $currentstring;
203: }
204:
205: #-- <map> tag
206: sub start_map {
207: my ($target,$token) = @_;
208: my $currentstring = '';
209: if ($target eq 'web') {
210: $currentstring = $token->[4];
211: }
212: return $currentstring;
213: }
214:
215: sub end_map {
216: my ($target,$token) = @_;
217: my $currentstring = '';
218: if ($target eq 'web') {
219: $currentstring = $token->[2];
220: }
221: return $currentstring;
222: }
223:
224: #-- <select> tag
225: sub start_select {
226: my ($target,$token) = @_;
227: my $currentstring = '';
228: if ($target eq 'web') {
229: $currentstring = $token->[4];
230: }
231: return $currentstring;
232: }
233:
234: sub end_select {
235: my ($target,$token) = @_;
236: my $currentstring = '';
237: if ($target eq 'web') {
238: $currentstring = $token->[2];
239: }
240: return $currentstring;
241: }
242:
243: #-- <option> tag
244: sub start_option {
245: my ($target,$token) = @_;
246: my $currentstring = '';
247: if ($target eq 'web') {
248: $currentstring = $token->[4];
249: }
250: return $currentstring;
251: }
252:
253: sub end_option {
254: my ($target,$token) = @_;
255: my $currentstring = '';
256: if ($target eq 'web') {
257: $currentstring = $token->[2];
258: }
259: return $currentstring;
260: }
261:
262: #-- <input> tag
263: sub start_input {
264: my ($target,$token) = @_;
265: my $currentstring = '';
266: if ($target eq 'web') {
267: $currentstring = $token->[4];
268: }
269: return $currentstring;
270: }
271:
272: sub end_input {
273: my ($target,$token) = @_;
274: my $currentstring = '';
275: if ($target eq 'web') {
276: $currentstring = $token->[2];
277: }
278: return $currentstring;
279: }
280:
281: #-- <textarea> tag
282: sub start_textarea {
283: my ($target,$token) = @_;
284: my $currentstring = '';
285: if ($target eq 'web') {
286: $currentstring = $token->[4];
287: }
288: return $currentstring;
289: }
290:
291: sub end_textarea {
292: my ($target,$token) = @_;
293: my $currentstring = '';
294: if ($target eq 'web') {
295: $currentstring = $token->[2];
296: }
297: return $currentstring;
298: }
299:
300: #-- <form> tag
301: sub start_form {
302: my ($target,$token) = @_;
303: my $currentstring = '';
304: if ($target eq 'web') {
305: $currentstring = $token->[4];
306: }
307: return $currentstring;
308: }
309:
310: sub end_form {
311: my ($target,$token) = @_;
312: my $currentstring = '';
313: if ($target eq 'web') {
314: $currentstring = $token->[2];
315: }
316: return $currentstring;
317: }
318:
319: #-- <title> tag
320: sub start_title {
321: my ($target,$token) = @_;
322: my $currentstring = '';
323: if ($target eq 'web') {
324: $currentstring = $token->[4];
325: } elsif ($target eq 'tex') {
326: $currentstring .= '\keephidden{Title of the document: '
327: }
328: if ($target eq 'meta') {
329: $currentstring='<title>';
330: &start_output();
331: }
332: return $currentstring;
333: }
334:
335: sub end_title {
336: my ($target,$token) = @_;
337: my $currentstring = '';
338: if ($target eq 'web') {
339: $currentstring = $token->[2];
340: } elsif ($target eq 'tex') {
341: $currentstring .= '}';
342: }
343: if ($target eq 'meta') {
344: &end_output();
345: $currentstring='</title>';
346: }
347: return $currentstring;
348: }
349:
350: #-- <meta> tag
351: sub start_meta {
352: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
353: my $currentstring = '';
354: if ($target eq 'web') {
355: my $args='';
356: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
357: if ($args eq '') {
358: &Apache::lonxml::get_all_text("/meta",$parser);
359: } else {
360: $currentstring = $token->[4];
361: }
362: } elsif ($target eq 'meta') {
363: unless (&Apache::lonxml::get_param
364: ('http-equiv',$parstack,$safeeval,undef,1)) {
365: my $name=$token->[2]->{'name'};
366: $name=~tr/A-Z/a-z/;
367: $name=~s/\s/\_/gs;
368: $name=~s/\W//gs;
369: if ($name) {
370: $currentstring='<'.$name;
371: my $display=&Apache::lonxml::get_param
372: ('display',$parstack,$safeeval,undef,1);
373: if ($display) {
374: $display=~s/\"/\'/g;
375: $currentstring.=' display="'.$display.'"';
376: }
377: $currentstring.='>'.
378: &Apache::lonxml::get_param
379: ('content',$parstack,$safeeval,undef,1).
380: '</'.$name.'>';
381: }
382: my $display=&Apache::lonxml::get_param
383: ('display',$parstack,$safeeval,undef,1);
384: if ($display) {
385: $display=&HTML::Entities::encode($display);
386: $currentstring.='<'.$name.'.display>'.$display.
387: '</'.$name.'.display>';
388: }
389: }
390: } elsif ($target eq 'tex') {
391: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
392: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
393: if ((not defined $content) && (not defined $name)) {
394: &Apache::lonxml::startredirection();
395: }
396: }
397: return $currentstring;
398: }
399:
400: sub end_meta {
401: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
402: my $currentstring = '';
403: if ($target eq 'web') {
404: my $args='';
405: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
406: if ($args ne '') {
407: $currentstring = $token->[4];
408: }
409: } elsif ($target eq 'tex') {
410: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
411: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
412: if ((not defined $content) && (not defined $name)) {
413: &Apache::lonxml::endredirection();
414: }
415: }
416: return $currentstring;
417: }
418:
419: # accessrule
420: sub start_accessrule {
421: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
422: my $currentstring = '';
423: my $eff=&Apache::lonxml::get_param
424: ('effect',$parstack,$safeeval,undef,1);
425: my $realm=&Apache::lonxml::get_param
426: ('realm',$parstack,$safeeval,undef,1);
427: my $role=&Apache::lonxml::get_param
428: ('role',$parstack,$safeeval,undef,1);
429: $realm=~s/\s+//g;
430: $realm=~s/\//\_/g;
431: $realm=~s/^\_//;
432: $realm=~s/\W/\;/g;
433: $role=~s/\s+//g;
434: $role=~s/\//\_/g;
435: $role=~s/\W/\;/g;
436: if ($target eq 'web') {
437: my $args='';
438: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
439: if ($args eq '') {
440: &Apache::lonxml::get_all_text("/accessrule",$parser);
441: } else {
442: $currentstring = $token->[4];
443: }
444: }
445: if ($target eq 'meta') {
446: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.'</rule>';
447: }
448: return $currentstring;
449: }
450:
451: sub end_accessrule {
452: my ($target,$token,$tagstack,$parstack,$parser) = @_;
453: my $currentstring = '';
454: if ($target eq 'web') {
455: my $args='';
456: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
457: if ($args ne '') {
458: $currentstring = $token->[4];
459: }
460: }
461: return $currentstring;
462: }
463:
464: #-- <body> tag
465: sub start_body {
466: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
467: my $currentstring = '';
468: if ($target eq 'web') {
469: if ($Apache::lonhomework::parsing_a_problem) {
470: &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
471: return '';
472: }
473: if (!$Apache::lonxml::registered) {
474: $currentstring.='<head>'.
475: &Apache::lonmenu::registerurl(undef,$target).'</head>';
476: }
477: # Accessibility
478: if ($ENV{'browser.imagesuppress'} eq 'on') {
479: delete($token->[2]->{'background'});
480: }
481: if ($ENV{'browser.fontenhance'} eq 'on') {
482: my $style='';
483: foreach my $key (keys(%{$token->[2]})) {
484: if ($key =~ /^style$/i) {
485: $style.=$token->[2]->{$key}.';';
486: delete($token->[2]->{$key});
487: }
488: }
489: $token->[2]->{'style'}=$style.'; font-size: x-large;';
490: }
491: if ($ENV{'browser.blackwhite'} eq 'on') {
492: delete($token->[2]->{'font'});
493: delete($token->[2]->{'link'});
494: delete($token->[2]->{'alink'});
495: delete($token->[2]->{'vlink'});
496: delete($token->[2]->{'bgcolor'});
497: delete($token->[2]->{'background'});
498: }
499: # Overload loads
500: my $onLoad='';
501: foreach my $key (keys(%{$token->[2]})) {
502: if ($key =~ /^onload$/i) {
503: $onLoad.=$token->[2]->{$key}.';';
504: delete($token->[2]->{$key});
505: }
506: }
507: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
508: my $onUnload='';
509: foreach my $key (keys(%{$token->[2]})) {
510: if ($key =~ /^onunload$/i) {
511: $onUnload.=$token->[2]->{$key}.';';
512: delete($token->[2]->{$key});
513: }
514: }
515: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
516: ';'.$onUnload;
517:
518: $currentstring .= '<'.$token->[1];
519: foreach (keys %{$token->[2]}) {
520: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
521: }
522: $currentstring.='>';
523: if ($ENV{'request.state'} ne 'published') {
524: $currentstring.=(<<EDITBUTTON);
525: <form method="post">
526: <input type="submit" name="editmode" value="Edit" />
527: </form>
528: EDITBUTTON
529: } else {
530: $currentstring.=&Apache::lonmenu::menubuttons(undef,$target,1);
531: }
532: } elsif ($target eq 'tex') {
533: $currentstring = '\begin{document}';
534: }
535: return $currentstring;
536: }
537:
538: sub end_body {
539: my ($target,$token) = @_;
540: my $currentstring = '';
541: if ($target eq 'web') {
542: $currentstring = $token->[2];
543: } elsif ($target eq 'tex') {
544: $currentstring = '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';
545: }
546: return $currentstring;
547: }
548:
549: #-- <center> tag
550: sub start_center {
551: my ($target,$token) = @_;
552: my $currentstring = '';
553: if ($target eq 'web') {
554: $currentstring = $token->[4];
555: } elsif ($target eq 'tex') {
556: $currentstring = '\begin{center}';
557: }
558: return $currentstring;
559: }
560:
561: sub end_center {
562: my ($target,$token) = @_;
563: my $currentstring = '';
564: if ($target eq 'web') {
565: $currentstring = $token->[2];
566: } elsif ($target eq 'tex') {
567: $currentstring = '\end{center}';
568: }
569: return $currentstring;
570: }
571:
572: #-- <b> tag
573: sub start_b {
574: my ($target,$token) = @_;
575: my $currentstring = '';
576: if ($target eq 'web') {
577: $currentstring = $token->[4];
578: } elsif ($target eq 'tex') {
579: $currentstring = '\textbf{';
580: }
581: return $currentstring;
582: }
583:
584: sub end_b {
585: my ($target,$token) = @_;
586: my $currentstring = '';
587: if ($target eq 'web') {
588: $currentstring = $token->[2];
589: } elsif ($target eq 'tex') {
590: $currentstring = '}';
591: }
592: return $currentstring;
593: }
594:
595: #-- <strong> tag
596: sub start_strong {
597: my ($target,$token) = @_;
598: my $currentstring = '';
599: if ($target eq 'web') {
600: $currentstring = $token->[4];
601: } elsif ($target eq 'tex') {
602: $currentstring = '\textbf{';
603: }
604: return $currentstring;
605: }
606:
607: sub end_strong {
608: my ($target,$token) = @_;
609: my $currentstring = '';
610: if ($target eq 'web') {
611:
612: $currentstring = $token->[2];
613: } elsif ($target eq 'tex') {
614: $currentstring = '}';
615: }
616: return $currentstring;
617: }
618:
619: #-- <h1> tag
620: sub start_h1 {
621: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
622: my $currentstring = '';
623: if ($target eq 'web') {
624: $currentstring .= $token->[4];
625: } elsif ($target eq 'tex') {
626: my $pre;
627: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
628: if (($align eq 'center') || (not defined $align)) {
629: $pre='\begin{center}';
630: } elsif ($align eq 'left') {
631: $pre='\rlap{';
632: } elsif ($align eq 'right') {
633: $pre=' \hfill \llap{';
634: }
635: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
636: if (not defined $TeXsize) {$TeXsize="large";}
637: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
638: } elsif ($target eq 'meta') {
639: $currentstring='<subject>';
640: &start_output();
641: }
642: return $currentstring;
643: }
644:
645: sub end_h1 {
646: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
647: my $currentstring = '';
648: if ($target eq 'web') {
649: $currentstring .= $token->[2];
650: } elsif ($target eq 'tex') {
651: my $post;
652: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
653: if (($align eq 'center') || (not defined $align)) {
654: $post='\end{center}';
655: } elsif ($align eq 'left') {
656: $post='} \hfill'.'\vskip 0 mm ';
657: } elsif ($align eq 'right') {
658: $post='}'.'\vskip 0 mm ';
659: }
660: $currentstring .= '}}'.$post;
661: } elsif ($target eq 'meta') {
662: &end_output();
663: $currentstring='</subject>';
664: }
665: return $currentstring;
666: }
667:
668: #-- <h2> tag
669: sub start_h2 {
670: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
671: my $currentstring = '';
672: if ($target eq 'web') {
673: $currentstring .= $token->[4];
674: } elsif ($target eq 'tex') {
675: my $pre;
676: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
677: if (($align eq 'center') || (not defined $align)) {
678: $pre='\begin{center}';
679: } elsif ($align eq 'left') {
680: $pre='\rlap{';
681: } elsif ($align eq 'right') {
682: $pre=' \hfill \llap{';
683: }
684: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
685: if (not defined $TeXsize) {$TeXsize="large";}
686: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
687: }
688: return $currentstring;
689: }
690:
691: sub end_h2 {
692: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
693: my $currentstring = '';
694: if ($target eq 'web') {
695: $currentstring .= $token->[2];
696: } elsif ($target eq 'tex') {
697: my $post;
698: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
699: if (($align eq 'center') || (not defined $align)) {
700: $post='\end{center}';
701: } elsif ($align eq 'left') {
702: $post='} \hfill'.'\vskip 0 mm ';
703: } elsif ($align eq 'right') {
704: $post='}'.'\vskip 0 mm ';
705: }
706: $currentstring .= '}}'.$post;
707: }
708: return $currentstring;
709: }
710:
711: #-- <h3> tag
712: sub start_h3 {
713: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
714: my $currentstring = '';
715: if ($target eq 'web') {
716: $currentstring .= $token->[4];
717: } elsif ($target eq 'tex') {
718: my $pre;
719: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
720: if (($align eq 'center') || (not defined $align)) {
721: $pre='\begin{center}';
722: } elsif ($align eq 'left') {
723: $pre='\rlap{';
724: } elsif ($align eq 'right') {
725: $pre=' \hfill \llap{';
726: }
727: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
728: if (not defined $TeXsize) {$TeXsize="large";}
729: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
730: }
731: return $currentstring;
732: }
733:
734: sub end_h3 {
735: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
736: my $currentstring = '';
737: if ($target eq 'web') {
738: $currentstring .= $token->[2];
739: } elsif ($target eq 'tex') {
740: my $post;
741: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
742: if (($align eq 'center') || (not defined $align)) {
743: $post='\end{center}';
744: } elsif ($align eq 'left') {
745: $post='} \hfill'.'\vskip 0 mm ';
746: } elsif ($align eq 'right') {
747: $post='}'.'\vskip 0 mm ';
748: }
749: $currentstring .= '}}'.$post;
750: }
751: return $currentstring;
752: }
753:
754: #-- <h4> tag
755: sub start_h4 {
756: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
757: my $currentstring = '';
758: if ($target eq 'web') {
759: $currentstring .= $token->[4];
760: } elsif ($target eq 'tex') {
761: my $pre;
762: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
763: if (($align eq 'center') || (not defined $align)) {
764: $pre='\begin{center}';
765: } elsif ($align eq 'left') {
766: $pre='\rlap{';
767: } elsif ($align eq 'right') {
768: $pre=' \hfill \llap{';
769: }
770: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
771: if (not defined $TeXsize) {$TeXsize="large";}
772: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
773: }
774: return $currentstring;
775: }
776:
777: sub end_h4 {
778: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
779: my $currentstring = '';
780: if ($target eq 'web') {
781: $currentstring .= $token->[2];
782: } elsif ($target eq 'tex') {
783: my $post;
784: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
785: if (($align eq 'center') || (not defined $align)) {
786: $post='\end{center}';
787: } elsif ($align eq 'left') {
788: $post='} \hfill'.'\vskip 0 mm ';
789: } elsif ($align eq 'right') {
790: $post='}'.'\vskip 0 mm ';
791: }
792: $currentstring .= '}}'.$post;
793: }
794: return $currentstring;
795: }
796:
797: #-- <h5> tag
798: sub start_h5 {
799: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
800: my $currentstring = '';
801: if ($target eq 'web') {
802: $currentstring .= $token->[4];
803: } elsif ($target eq 'tex') {
804: my $pre;
805: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
806: if (($align eq 'center') || (not defined $align)) {
807: $pre='\begin{center}';
808: } elsif ($align eq 'left') {
809: $pre='\rlap{';
810: } elsif ($align eq 'right') {
811: $pre=' \hfill \llap{';
812: }
813: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
814: if (not defined $TeXsize) {$TeXsize="large";}
815: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
816: }
817: return $currentstring;
818: }
819:
820: sub end_h5 {
821: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
822: my $currentstring = '';
823: if ($target eq 'web') {
824: $currentstring .= $token->[2];
825: } elsif ($target eq 'tex') {
826: my $post;
827: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
828: if (($align eq 'center') || (not defined $align)) {
829: $post='\end{center}';
830: } elsif ($align eq 'left') {
831: $post='} \hfill'.'\vskip 0 mm ';
832: } elsif ($align eq 'right') {
833: $post='}'.'\vskip 0 mm ';
834: }
835: $currentstring .= '}}'.$post;
836: }
837: return $currentstring;
838: }
839:
840: #-- <h6> tag
841: sub start_h6 {
842: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
843: my $currentstring = '';
844: if ($target eq 'web') {
845: $currentstring .= $token->[4];
846: } elsif ($target eq 'tex') {
847: my $pre;
848: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
849: if (($align eq 'center') || (not defined $align)) {
850: $pre='\begin{center}';
851: } elsif ($align eq 'left') {
852: $pre='\rlap{';
853: } elsif ($align eq 'right') {
854: $pre=' \hfill \llap{';
855: }
856: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
857: if (not defined $TeXsize) {$TeXsize="large";}
858: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
859: }
860: return $currentstring;
861: }
862:
863: sub end_h6 {
864: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
865: my $currentstring = '';
866: if ($target eq 'web') {
867: $currentstring .= $token->[2];
868: } elsif ($target eq 'tex') {
869: my $post;
870: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
871: if (($align eq 'center') || (not defined $align)) {
872: $post='\end{center}';
873: } elsif ($align eq 'left') {
874: $post='} \hfill'.'\vskip 0 mm ';
875: } elsif ($align eq 'right') {
876: $post='}'.'\vskip 0 mm ';
877: }
878: $currentstring .= '}}'.$post;
879: }
880: return $currentstring;
881: }
882:
883: #--- <cite> tag
884: sub start_cite {
885: my ($target,$token) = @_;
886: my $currentstring = '';
887: if ($target eq 'web') {
888: $currentstring .= $token->[4];
889: } elsif ($target eq 'tex') {
890: $currentstring .= "\\textit{";
891: }
892: return $currentstring;
893: }
894:
895: sub end_cite {
896: my ($target,$token) = @_;
897: my $currentstring = '';
898: if ($target eq 'web') {
899: $currentstring .= $token->[2];
900: } elsif ($target eq 'tex') {
901: $currentstring .= "}";
902: }
903: return $currentstring;
904: }
905:
906: #-- <i> tag
907: sub start_i {
908: my ($target,$token) = @_;
909: my $currentstring = '';
910: if ($target eq 'web') {
911: $currentstring .= $token->[4];
912: } elsif ($target eq 'tex') {
913: $currentstring .= '\textit{';
914: }
915: return $currentstring;
916: }
917:
918: sub end_i {
919: my ($target,$token) = @_;
920: my $currentstring = '';
921: if ($target eq 'web') {
922: $currentstring .= $token->[2];
923: } elsif ($target eq 'tex') {
924: $currentstring .= '}';
925: }
926: return $currentstring;
927: }
928:
929: #-- <address> tag
930: sub start_address {
931: my ($target,$token) = @_;
932: my $currentstring = '';
933: if ($target eq 'web') {
934: $currentstring .= $token->[4];
935: } elsif ($target eq 'tex') {
936: $currentstring .= "\\textit{";
937: }
938: return $currentstring;
939: }
940:
941: sub end_address {
942: my ($target,$token) = @_;
943: my $currentstring = '';
944: if ($target eq 'web') {
945: $currentstring .= $token->[2];
946: } elsif ($target eq 'tex') {
947: $currentstring .= "}";
948: }
949: return $currentstring;
950: }
951:
952: #-- <dfn> tag
953: sub start_dfn {
954: my ($target,$token) = @_;
955: my $currentstring = '';
956: if ($target eq 'web') {
957: $currentstring .= $token->[4];
958: } elsif ($target eq 'tex') {
959: $currentstring .= "\\textit{";
960: }
961: return $currentstring;
962: }
963:
964: sub end_dfn {
965: my ($target,$token) = @_;
966: my $currentstring = '';
967: if ($target eq 'web') {
968: $currentstring .= $token->[2];
969: } elsif ($target eq 'tex') {
970: $currentstring .= "}";
971: }
972: return $currentstring;
973: }
974:
975: #-- <tt> tag
976: sub start_tt {
977: my ($target,$token) = @_;
978: my $currentstring = '';
979: if ($target eq 'web') {
980: $currentstring .= $token->[4];
981: } elsif ($target eq 'tex') {
982: $currentstring .= '\texttt{';
983: }
984: return $currentstring;
985: }
986:
987: sub end_tt {
988: my ($target,$token) = @_;
989: my $currentstring = '';
990: if ($target eq 'web') {
991: $currentstring .= $token->[2];
992: } elsif ($target eq 'tex') {
993: $currentstring .= '}';
994: }
995: return $currentstring;
996: }
997:
998: #-- <kbd> tag
999: sub start_kbd {
1000: my ($target,$token) = @_;
1001: my $currentstring = '';
1002: if ($target eq 'web') {
1003: $currentstring .= $token->[4];
1004: } elsif ($target eq 'tex') {
1005: $currentstring .= "\\texttt";
1006: }
1007: return $currentstring;
1008: }
1009:
1010: sub end_kbd {
1011: my ($target,$token) = @_;
1012: my $currentstring = '';
1013: if ($target eq 'web') {
1014: $currentstring .= $token->[2];
1015: } elsif ($target eq 'tex') {
1016: $currentstring .= "}";
1017: }
1018: return $currentstring;
1019: }
1020:
1021: #-- <code> tag
1022: sub start_code {
1023: my ($target,$token) = @_;
1024: my $currentstring = '';
1025: if ($target eq 'web') {
1026: $currentstring .= $token->[4];
1027: } elsif ($target eq 'tex') {
1028: $currentstring .= '\texttt{';
1029: }
1030: return $currentstring;
1031: }
1032:
1033: sub end_code {
1034: my ($target,$token) = @_;
1035: my $currentstring = '';
1036: if ($target eq 'web') {
1037: $currentstring .= $token->[2];
1038: } elsif ($target eq 'tex') {
1039: $currentstring .= '}';
1040: }
1041: return $currentstring;
1042: }
1043:
1044: #-- <em> tag
1045: sub start_em {
1046: my ($target,$token) = @_;
1047: my $currentstring = '';
1048: if ($target eq 'web') {
1049: $currentstring .= $token->[4];
1050: } elsif ($target eq 'tex') {
1051: $currentstring .= '\emph{';
1052: }
1053: return $currentstring;
1054: }
1055:
1056: sub end_em {
1057: my ($target,$token) = @_;
1058: my $currentstring = '';
1059: if ($target eq 'web') {
1060: $currentstring .= $token->[2];
1061: } elsif ($target eq 'tex') {
1062: $currentstring .= '}';
1063: }
1064: return $currentstring;
1065: }
1066:
1067: #-- <q> tag
1068: sub start_q {
1069: my ($target,$token) = @_;
1070: my $currentstring = '';
1071: if ($target eq 'web') {
1072: $currentstring .= $token->[4];
1073: } elsif ($target eq 'tex') {
1074: $currentstring .= "\\emph{";
1075: }
1076: return $currentstring;
1077: }
1078:
1079: sub end_q {
1080: my ($target,$token) = @_;
1081: my $currentstring = '';
1082: if ($target eq 'web') {
1083: $currentstring .= $token->[2];
1084: } elsif ($target eq 'tex') {
1085: $currentstring .= "}";
1086: }
1087: return $currentstring;
1088: }
1089:
1090: #-- <p> tag
1091: sub start_p {
1092: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1093: my $currentstring = '';
1094: if ($target eq 'web') {
1095: $currentstring .= $token->[4];
1096: } elsif ($target eq 'tex') {
1097: my $signal=1;
1098: foreach my $tag (@$tagstack) {if (lc($tag) eq 'b') {$signal=0;}}
1099: if ($signal) {$currentstring .= '\par ';}
1100: }
1101: return $currentstring;
1102: }
1103:
1104: sub end_p {
1105: my ($target,$token) = @_;
1106: my $currentstring = '';
1107: if ($target eq 'web') {
1108: $currentstring .= $token->[2];
1109: }
1110: return $currentstring;
1111: }
1112:
1113: #-- <br> tag
1114: sub start_br {
1115: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1116: my $currentstring = '';
1117: if ($target eq 'web') {
1118: $currentstring .= $token->[4];
1119: } elsif ($target eq 'tex') {
1120: if ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') {
1121: $currentstring .= '\vskip 0.2 mm ';
1122: }
1123: }
1124: return $currentstring;
1125: }
1126:
1127: sub end_br {
1128: my ($target,$token) = @_;
1129: my $currentstring = '';
1130: if ($target eq 'web') {
1131: $currentstring .= $token->[2];
1132: }
1133: return $currentstring;
1134: }
1135:
1136: #-- <big> tag
1137: sub start_big {
1138: my ($target,$token) = @_;
1139: my $currentstring = '';
1140: if ($target eq 'web') {
1141: $currentstring .= $token->[4];
1142: } elsif ($target eq 'tex') {
1143: $currentstring .= '{\large ';
1144: }
1145: return $currentstring;
1146: }
1147:
1148: sub end_big {
1149: my ($target,$token) = @_;
1150: my $currentstring = '';
1151: if ($target eq 'web') {
1152: $currentstring .= $token->[2];
1153: } elsif ($target eq 'tex') {
1154: $currentstring .= '}';
1155: }
1156: return $currentstring;
1157: }
1158:
1159: #-- <small> tag
1160: sub start_small {
1161: my ($target,$token) = @_;
1162: my $currentstring = '';
1163: if ($target eq 'web') {
1164: $currentstring .= $token->[4];
1165: } elsif ($target eq 'tex') {
1166: $currentstring .= '{\footnotesize ';
1167: }
1168: return $currentstring;
1169: }
1170:
1171: sub end_small {
1172: my ($target,$token) = @_;
1173: my $currentstring = '';
1174: if ($target eq 'web') {
1175: $currentstring .= $token->[2];
1176: } elsif ($target eq 'tex') {
1177: $currentstring .= '}';
1178: }
1179: return $currentstring;
1180: }
1181:
1182: #-- <basefont> tag
1183: sub start_basefont {
1184: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1185: my $currentstring = '';
1186: if ($target eq 'web') {
1187: $currentstring = $token->[4];
1188: } elsif ($target eq 'tex') {
1189: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1190: if (defined $basesize) {
1191: $currentstring = '{\\'.$basesize.' ';
1192: }
1193: }
1194: return $currentstring;
1195: }
1196:
1197: sub end_basefont {
1198: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1199: my $currentstring = '';
1200: if ($target eq 'web') {
1201: $currentstring = $token->[4];
1202: } elsif ($target eq 'tex') {
1203: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1204: if (defined $basesize) {
1205: $currentstring = '}';
1206: }
1207: }
1208: return $currentstring;
1209: }
1210:
1211: #-- <font> tag
1212: sub start_font {
1213: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1214: my $currentstring = '';
1215: if ($target eq 'web') {
1216: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1217: if ($face=~/symbol/i) {
1218: $Apache::lonxml::prevent_entity_encode++;
1219: } else {
1220: if (($ENV{'browser.fontenhance'} eq 'on') ||
1221: ($ENV{'browser.blackwhite'} eq 'on')) { return ''; }
1222: }
1223: $currentstring = $token->[4];
1224: } elsif ($target eq 'tex') {
1225: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1226: if (defined $fontsize) {
1227: $currentstring = '{\\'.$fontsize.' ';
1228: }
1229: }
1230: return $currentstring;
1231: }
1232:
1233: sub end_font {
1234: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1235: my $currentstring = '';
1236: if ($target eq 'web') {
1237: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1238: if ($face=~/symbol/i) {$Apache::lonxml::prevent_entity_encode--;}
1239: $currentstring = $token->[2];
1240: } elsif ($target eq 'tex') {
1241: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1242: if (defined $fontsize) {
1243: $currentstring = '}';
1244: }
1245: }
1246: return $currentstring;
1247: }
1248:
1249: #-- <strike> tag
1250: sub start_strike {
1251: my ($target,$token) = @_;
1252: my $currentstring = '';
1253: if ($target eq 'web') {
1254: $currentstring .= $token->[4];
1255: } elsif ($target eq 'tex') {
1256: &Apache::lonxml::startredirection();
1257: }
1258: return $currentstring;
1259: }
1260:
1261: sub end_strike {
1262: my ($target,$token) = @_;
1263: my $currentstring = '';
1264: if ($target eq 'web') {
1265: $currentstring .= $token->[2];
1266: } elsif ($target eq 'tex') {
1267: $currentstring=&Apache::lonxml::endredirection();
1268: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1269: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1270: $currentstring=~s/(\S)\s*$/$1\}/;
1271: }
1272: return $currentstring;
1273: }
1274:
1275: #-- <s> tag
1276: sub start_s {
1277: my ($target,$token) = @_;
1278: my $currentstring = '';
1279: if ($target eq 'web') {
1280: $currentstring .= $token->[4];
1281: } elsif ($target eq 'tex') {
1282: &Apache::lonxml::startredirection();
1283: }
1284: return $currentstring;
1285: }
1286:
1287: sub end_s {
1288: my ($target,$token) = @_;
1289: my $currentstring = '';
1290: if ($target eq 'web') {
1291: $currentstring .= $token->[2];
1292: } elsif ($target eq 'tex') {
1293: $currentstring=&Apache::lonxml::endredirection();
1294: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1295: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1296: $currentstring=~s/(\S)\s*$/$1\}/;
1297: }
1298: return $currentstring;
1299: }
1300:
1301: #-- <sub> tag
1302: sub start_sub {
1303: my ($target,$token) = @_;
1304: my $currentstring = '';
1305: if ($target eq 'web') {
1306: $currentstring .= $token->[4];
1307: } elsif ($target eq 'tex') {
1308: $currentstring .= "\$_{ ";
1309: }
1310: return $currentstring;
1311: }
1312:
1313: sub end_sub {
1314: my ($target,$token) = @_;
1315: my $currentstring = '';
1316: if ($target eq 'web') {
1317: $currentstring .= $token->[2];
1318: } elsif ($target eq 'tex') {
1319: $currentstring .= " }\$";
1320: }
1321: return $currentstring;
1322: }
1323:
1324: #-- <sup> tag
1325: sub start_sup {
1326: my ($target,$token) = @_;
1327: my $currentstring = '';
1328: if ($target eq 'web') {
1329: $currentstring .= $token->[4];
1330: } elsif ($target eq 'tex') {
1331: $currentstring .= "\$^{ ";
1332: }
1333: return $currentstring;
1334: }
1335:
1336: sub end_sup {
1337: my ($target,$token) = @_;
1338: my $currentstring = '';
1339: if ($target eq 'web') {
1340: $currentstring .= $token->[2];
1341: } elsif ($target eq 'tex') {
1342: $currentstring .= " }\$";
1343: }
1344: return $currentstring;
1345: }
1346:
1347: #-- <hr> tag
1348: sub start_hr {
1349: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1350: my $currentstring = '';
1351: if ($target eq 'web') {
1352: $currentstring .= $token->[4];
1353: } elsif ($target eq 'tex') {
1354: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1355: if (defined $LaTeXwidth) {
1356: if ($LaTeXwidth=~/^%/) {
1357: substr($LaTeXwidth,0,1)='';
1358: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1359: }
1360: } else {
1361: $LaTeXwidth ='0.9\textwidth';
1362: }
1363: my ($pre,$post);
1364: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1365: if (($align eq 'center') || (not defined $align)) {
1366: $pre=''; $post='';
1367: } elsif ($align eq 'left') {
1368: $pre='\rlap{'; $post='} \hfill';
1369: } elsif ($align eq 'right') {
1370: $pre=' \hfill \llap{'; $post='}';
1371: }
1372: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1373: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1374: }
1375: return $currentstring;
1376: }
1377:
1378: sub end_hr {
1379: my ($target,$token) = @_;
1380: my $currentstring = '';
1381: if ($target eq 'web') {
1382: $currentstring .= $token->[2];
1383: }
1384: return $currentstring;
1385: }
1386:
1387: #-- <div> tag
1388: sub start_div {
1389: my ($target,$token) = @_;
1390: my $currentstring = '';
1391: if ($target eq 'web') {
1392: $currentstring .= $token->[4];
1393: }
1394: return $currentstring;
1395: }
1396:
1397: sub end_div {
1398: my ($target,$token) = @_;
1399: my $currentstring = '';
1400: if ($target eq 'web') {
1401: $currentstring .= $token->[2];
1402: }
1403: return $currentstring;
1404: }
1405:
1406: #-- <a> tag
1407: sub start_a {
1408: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1409: my $currentstring = '';
1410: if ($target eq 'web') {
1411: $currentstring .= $token->[4];
1412: } elsif ($target eq 'tex') {
1413: my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1414: my $b=&Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1415: if ($a=~/\S/) {
1416: $a=~s/([^\\])%/$1\\\%/g;
1417: $currentstring .= '\ref{URI: '.$a.'}';
1418: } elsif ($b=~/\S/) {
1419: $currentstring .= '\ref{Anchor: '.$b.'}';
1420: } else {
1421: $currentstring.='';
1422: }
1423: }
1424: return $currentstring;
1425: }
1426:
1427: sub end_a {
1428: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1429: my $currentstring = '';
1430: if ($target eq 'web') {
1431: $currentstring .= $token->[2];
1432: }
1433: return $currentstring;
1434: }
1435:
1436: #-- <li> tag
1437: sub start_li {
1438: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1439: my $currentstring = '';
1440: if ($target eq 'web') {
1441: $currentstring = $token->[4];
1442: } elsif ($target eq 'tex') {
1443: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,1);
1444: if ($type=~/circle/) {
1445: $currentstring .= ' \item[o] ';
1446: } elsif ($type=~/square/) {
1447: $currentstring .= ' \item[$\Box$] ';
1448: } elsif ($type ne '') {
1449: $currentstring .= ' \item['.$type.'] ';
1450: } else {
1451: $currentstring .= ' \item ';
1452: }
1453: }
1454: return $currentstring;
1455: }
1456:
1457: sub end_li {
1458: my ($target,$token) = @_;
1459: my $currentstring = '';
1460: if ($target eq 'web') {
1461: $currentstring = $token->[2];
1462: }
1463: return $currentstring;
1464: }
1465:
1466: #-- <u> tag
1467: sub start_u {
1468: my ($target,$token) = @_;
1469: my $currentstring = '';
1470: if ($target eq 'web') {
1471: $currentstring .= $token->[4];
1472: } elsif ($target eq 'tex') {
1473: &Apache::lonxml::startredirection();
1474: }
1475: return $currentstring;
1476: }
1477:
1478: sub end_u {
1479: my ($target,$token) = @_;
1480: my $currentstring = '';
1481: if ($target eq 'web') {
1482: $currentstring .= $token->[2];
1483: } elsif ($target eq 'tex') {
1484: $currentstring=&Apache::lonxml::endredirection();
1485: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1486: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1487: $currentstring=~s/(\S)\s*$/$1\}/;
1488: }
1489: return $currentstring;
1490: }
1491:
1492: #-- <ul> tag
1493: sub start_ul {
1494: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1495: my $currentstring = '';
1496: if ($target eq 'web') {
1497: $currentstring = $token->[4];
1498: } elsif ($target eq 'tex') {
1499: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1500: if ($TeXtype eq 'disc') {
1501: $currentstring .= ' \renewcommand{\labelitemi}{$\bullet$}
1502: \renewcommand{\labelitemii}{$\bullet$}
1503: \renewcommand{\labelitemiii}{$\bullet$}
1504: \renewcommand{\labelitemiv}{$\bullet$}';
1505: } elsif ($TeXtype eq 'circle') {
1506: $currentstring .= ' \renewcommand{\labelitemi}{$\circ$}
1507: \renewcommand{\labelitemii}{$\circ$}
1508: \renewcommand{\labelitemiii}{$\circ$}
1509: \renewcommand{\labelitemiv}{$\circ$}';
1510: } elsif ($TeXtype eq 'square') {
1511: $currentstring .= ' \renewcommand{\labelitemi}{$\diamond$}
1512: \renewcommand{\labelitemii}{$\diamond$}
1513: \renewcommand{\labelitemiii}{$\diamond$}
1514: \renewcommand{\labelitemiv}{$\diamond$}';
1515: }
1516: $currentstring .= '\begin{itemize}';
1517: }
1518: return $currentstring;
1519: }
1520:
1521: sub end_ul {
1522: my ($target,$token) = @_;
1523: my $currentstring = '';
1524: if ($target eq 'web') {
1525: $currentstring = $token->[2];
1526: } elsif ($target eq 'tex') {
1527: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}
1528: \renewcommand{\labelitemii}{$\bullet$}
1529: \renewcommand{\labelitemiii}{$\bullet$}
1530: \renewcommand{\labelitemiv}{$\bullet$}';
1531: }
1532: return $currentstring;
1533: }
1534:
1535: #-- <menu> tag
1536: sub start_menu {
1537: my ($target,$token) = @_;
1538: my $currentstring = '';
1539: if ($target eq 'web') {
1540: $currentstring = $token->[4];
1541: } elsif ($target eq 'tex') {
1542: $currentstring = " \\begin{itemize} ";
1543: }
1544: return $currentstring;
1545: }
1546:
1547: sub end_menu {
1548: my ($target,$token) = @_;
1549: my $currentstring = '';
1550: if ($target eq 'web') {
1551: $currentstring = $token->[2];
1552: } elsif ($target eq 'tex') {
1553: $currentstring = " \\end{itemize}";
1554: }
1555: return $currentstring;
1556: }
1557:
1558: #-- <dir> tag
1559: sub start_dir {
1560: my ($target,$token) = @_;
1561: my $currentstring = '';
1562: if ($target eq 'web') {
1563: $currentstring = $token->[4];
1564: } elsif ($target eq 'tex') {
1565: $currentstring = " \\begin{itemize} ";
1566: }
1567: return $currentstring;
1568: }
1569:
1570: sub end_dir {
1571: my ($target,$token) = @_;
1572: my $currentstring = '';
1573: if ($target eq 'web') {
1574: $currentstring = $token->[2];
1575: } elsif ($target eq 'tex') {
1576: $currentstring = " \\end{itemize}";
1577: }
1578: return $currentstring;
1579: }
1580:
1581: #-- <ol> tag
1582: sub start_ol {
1583: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1584: my $currentstring = '';
1585: if ($target eq 'web') {
1586: $currentstring = $token->[4];
1587: } elsif ($target eq 'tex') {
1588: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1589: if ($type eq '1') {
1590: $currentstring .= ' \renewcommand{\labelenumi}{\arabic{enumi}.}
1591: \renewcommand{\labelenumii}{\arabic{enumii}.}
1592: \renewcommand{\labelenumiii}{\arabic{enumiii}.}
1593: \renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1594: } elsif ($type eq 'A') {
1595: $currentstring .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}
1596: \renewcommand{\labelenumii}{\Alph{enumii}.}
1597: \renewcommand{\labelenumiii}{\Alph{enumiii}.}
1598: \renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1599: } elsif ($type eq 'a') {
1600: $currentstring .= ' \renewcommand{\labelenumi}{\alph{enumi}.}
1601: \renewcommand{\labelenumii}{\alph{enumii}.}
1602: \renewcommand{\labelenumiii}{\alph{enumiii}.}
1603: \renewcommand{\labelenumiv}{\alph{enumiv}.} ';
1604: } elsif ($type eq 'i') {
1605: $currentstring .= ' \renewcommand{\labelenumi}{\roman{enumi}.}
1606: \renewcommand{\labelenumii}{\roman{enumii}.}
1607: \renewcommand{\labelenumiii}{\roman{enumiii}.}
1608: \renewcommand{\labelenumiv}{\roman{enumiv}.} ';
1609: } elsif ($type eq 'I') {
1610: $currentstring .= ' \renewcommand{\labelenumi}{\Roman{enumi}.}
1611: \renewcommand{\labelenumii}{\Roman{enumii}.}
1612: \renewcommand{\labelenumiii}{\Roman{enumiii}.}
1613: \renewcommand{\labelenumiv}{\Roman{enumiv}.} ';
1614: }
1615: $currentstring .= '\begin{enumerate}';
1616: }
1617: return $currentstring;
1618: }
1619:
1620: sub end_ol {
1621: my ($target,$token) = @_;
1622: my $currentstring = '';
1623: if ($target eq 'web') {
1624: $currentstring = $token->[2];
1625: } elsif ($target eq 'tex') {
1626: $currentstring = '\end{enumerate} \renewcommand{\labelenumi}{\arabic{enumi}.}
1627: \renewcommand{\labelenumii}{\arabic{enumii}.}
1628: \renewcommand{\labelenumiii}{\arabic{enumiii}.}
1629: \renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1630: }
1631: return $currentstring;
1632: }
1633:
1634: #-- <dl> tag
1635: sub start_dl {
1636: my ($target,$token) = @_;
1637: my $currentstring = '';
1638: if ($target eq 'web') {
1639: $currentstring = $token->[4];
1640: } elsif ($target eq 'tex') {
1641: $currentstring = '\begin{description}';
1642: }
1643: return $currentstring;
1644: }
1645:
1646: sub end_dl {
1647: my ($target,$token) = @_;
1648: my $currentstring = '';
1649: if ($target eq 'web') {
1650: $currentstring = $token->[2];
1651: } elsif ($target eq 'tex') {
1652: $currentstring = '\end{description}';
1653: }
1654: return $currentstring;
1655: }
1656:
1657: #-- <dt> tag
1658: sub start_dt {
1659: my ($target,$token) = @_;
1660: my $currentstring = '';
1661: if ($target eq 'web') {
1662: $currentstring = $token->[4];
1663: } elsif ($target eq 'tex') {
1664: $currentstring = '\item[';
1665: }
1666: return $currentstring;
1667: }
1668:
1669: sub end_dt {
1670: my ($target,$token) = @_;
1671: my $currentstring = '';
1672: if ($target eq 'web') {
1673: $currentstring = $token->[2];
1674: } elsif ($target eq 'tex') {
1675: $currentstring = ']';
1676: }
1677: return $currentstring;
1678: }
1679:
1680: #-- <dd> tag
1681: sub start_dd {
1682: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1683: my $currentstring = '';
1684: if ($target eq 'web') {
1685: $currentstring = $token->[4];
1686: } elsif ($target eq 'tex') {
1687: if ($$tagstack[-2] eq 'dl') {
1688: $currentstring = ' \item [] ';
1689: } elsif ($$tagstack[-2] eq 'dt') {
1690: $currentstring = ']';
1691: }
1692: }
1693: return $currentstring;
1694: }
1695:
1696: sub end_dd {
1697: my ($target,$token) = @_;
1698: my $currentstring = '';
1699: if ($target eq 'web') {
1700: $currentstring = $token->[2];
1701: }
1702: return $currentstring;
1703: }
1704:
1705: #-- <table> tag
1706: sub start_table {
1707: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1708: my $textwidth='';
1709: if (not defined @Apache::londefdef::table) {
1710: $textwidth=&recalc($ENV{'form.textwidth'});
1711: $textwidth=~/(\d+\.?\d*)/;
1712: $textwidth=0.95*$1;
1713: } else {
1714: $textwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1715: }
1716: my $currentstring = '';
1717: if ($target eq 'web') {
1718: $currentstring = $token->[4];
1719: } elsif ($target eq 'tex') {
1720: my $aa = {};
1721: push @Apache::londefdef::table, $aa;
1722: $Apache::londefdef::table[-1]{'row_number'} = -1;
1723: #table's width
1724: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1725: if (not defined $TeXwidth) {
1726: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,$safeeval,undef,1);
1727: if ($htmlwidth=~/%/) {
1728: $htmlwidth=~/(\d+)/;
1729: my $value=$1*$textwidth/100;
1730: $Apache::londefdef::table[-1]{'width'}=$value;
1731: } else {
1732: $Apache::londefdef::table[-1]{'width'}=$textwidth;
1733: }
1734: } elsif ($TeXwidth=~/%/) {
1735: $TeXwidth=~/(\d+)/;
1736: my $value=$1*$textwidth/100;
1737: $Apache::londefdef::table[-1]{'width'}=$value;
1738: } else {
1739: $Apache::londefdef::table[-1]{'width'}=$textwidth;
1740: }
1741: #table's border
1742: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval,undef,1);
1743: unless (defined $border) { $border = 0; }
1744: if ($border) {
1745: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
1746: $Apache::londefdef::table[-1]{'vinc'} = '&';
1747: $Apache::londefdef::table[-1]{'vvinc'} = '|';
1748: } else {
1749: $Apache::londefdef::table[-1]{'hinc'} = '';
1750: $Apache::londefdef::table[-1]{'vinc'} = '&';
1751: $Apache::londefdef::table[-1]{'vvinc'} = '';
1752: }
1753: $Apache::londefdef::table[-1]{'output'} = ' \noindent \begin{tabular} ';
1754: $currentstring = '\keephidden{NEW TABLE ENTRY}';
1755: }
1756: return $currentstring;
1757: }
1758:
1759: sub end_table {
1760: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1761: my $currentstring = '';
1762: if ($target eq 'web') {
1763: $currentstring = $token->[2];
1764: } elsif ($target eq 'tex') {
1765: my $inmemory = '';
1766: my $output = '';
1767: #construct header of the table
1768: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
1769: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'counter_columns'};$in++) {
1770: $header_of_table .= $Apache::londefdef::table[-1]{'columns'}[$in].$Apache::londefdef::table[-1]{'vvinc'};
1771: }
1772: $header_of_table .= '}';
1773: #define the length of the table cells
1774: #always starts with TeXwidth (if defined everything else is ignored)
1775: my @length_row_final = split(/,/,$Apache::londefdef::table[-1]{'TeXlengthrow'}[0]);
1776: for (my $in=1;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1777: my @length_row = split(/,/,$Apache::londefdef::table[-1]{'TeXlengthrow'}[$in]);
1778: for (my $jn=0;$jn<=$#length_row;$jn++) {
1779: if ($length_row_final[$jn]<$length_row[$jn]) {$length_row_final[$jn]=$length_row[$jn];}
1780: }
1781: }
1782: #continues trying estimate the width of raw data
1783: my @length_raw_row = split(/,/,$Apache::londefdef::table[-1]{'lengthrow'}[0]);
1784: for (my $in=1;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1785: my @length_row = split(/,/,$Apache::londefdef::table[-1]{'lengthrow'}[$in]);
1786: for (my $jn=0;$jn<=$#length_row;$jn++) {
1787: if ($length_raw_row[$jn]<$length_row[$jn]) {$length_raw_row[$jn]=$length_row[$jn];}
1788: }
1789: }
1790: #comparing of TeXwidth and raw data width
1791: my $available_length=$Apache::londefdef::table[-1]{'width'};
1792: my $needed=0;
1793: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1794: if ($length_row_final[$jn]!=0) {
1795: $available_length=$available_length-$length_row_final[$jn];
1796: $needed++;
1797: }
1798: }
1799: $needed=$#length_row_final-$needed+1;
1800: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1801: if ($length_row_final[$jn]==0) {
1802: if ($length_raw_row[$jn]<$available_length) {
1803: $length_row_final[$jn]=$length_raw_row[$jn];
1804: $available_length=$available_length-$length_raw_row[$jn];
1805: $needed--;
1806: }
1807: }
1808: }
1809: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1810: if ($length_row_final[$jn]==0) {
1811: $length_row_final[$jn]=0.9*$available_length/$needed;
1812: }
1813: }
1814: #fill the table
1815: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1816: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1817: my $substituted=$length_row_final[$jn];
1818: $Apache::londefdef::table[-1]{'rowdata'}[$in]=~s/TOBECHANGEDONNUMBER/$substituted mm/;
1819: }
1820: $output .= $Apache::londefdef::table[-1]{'rowdata'}[$in];
1821: chop $output;
1822: $output .= ' \\\\ ';
1823: }
1824: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$output.$Apache::londefdef::table[-1]{'hinc'}.'\end{tabular}\vskip 0 mm ';
1825: if ($#Apache::londefdef::table > 0) {
1826: my $inmemory = $Apache::londefdef::table[-1]{'output'};
1827: pop @Apache::londefdef::table;
1828: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1829: } else {
1830: $currentstring .= $Apache::londefdef::table[-1]{'output'};
1831: pop @Apache::londefdef::table;
1832: undef @Apache::londefdef::table;
1833: }
1834: }
1835: return $currentstring;
1836: }
1837:
1838: #-- <tr> tag (end tag optional)
1839: sub start_tr {
1840: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1841: my $currentstring = '';
1842: if ($target eq 'web') {
1843: $currentstring = $token->[4];
1844: } elsif ($target eq 'tex') {
1845: $Apache::londefdef::table[-1]{'row_number'}++;
1846: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
1847: if ($alignchar ne '') {
1848: push @ {$Apache::londefdef::table[-1]{'rows'} }, $alignchar;
1849: } else {
1850: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
1851: }
1852: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
1853: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1854: $Apache::londefdef::table[-1]{'TeXlength'} = '';
1855: $Apache::londefdef::table[-1]{'length'} = '';
1856: }
1857: return $currentstring;
1858: }
1859:
1860: sub end_tr {
1861: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1862: my $currentstring = '';
1863: if ($target eq 'web') {
1864: $currentstring = $token->[2];
1865: } elsif ($target eq 'tex') {
1866: if ($Apache::londefdef::TD_redirection) {
1867: &end_td_tex($parstack,$parser,$safeeval);
1868: }
1869: push @{ $Apache::londefdef::table[-1]{'TeXlengthrow'} },$Apache::londefdef::table[-1]{'TeXlength'};
1870: push @{ $Apache::londefdef::table[-1]{'lengthrow'} },$Apache::londefdef::table[-1]{'length'};
1871: }
1872: return $currentstring;
1873: }
1874:
1875: #-- <td> tag (end tag optional)
1876: sub start_td {
1877: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1878: my $currentstring = '';
1879: if ($target eq 'web') {
1880: $currentstring = $token->[4];
1881: } elsif ($target eq 'tex') {
1882: $Apache::londefdef::TD_redirection = 1;
1883: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1884: }
1885: return $currentstring;
1886: }
1887:
1888: sub tag_check {
1889: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1890: my @ar=@$parstack;
1891: for (my $i=$#ar-1;$i>=0;$i--) {
1892: if (lc($$tagstack[$i]) eq $good_tag) {
1893: &start_td_tex($parstack,$parser,$safeeval);
1894: last;
1895: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
1896: splice @ar, $i+1;
1897: &end_td_tex(\@ar,$parser,$safeeval);
1898: &start_td_tex($parstack,$parser,$safeeval);
1899: last;
1900: }
1901: }
1902: return '';
1903: }
1904:
1905: sub start_td_tex {
1906: my ($parstack,$parser,$safeeval) = @_;
1907: my $what_to_push = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
1908: if ($what_to_push eq '') {
1909: $what_to_push = substr($Apache::londefdef::table[-1]{'rows'}[0],0,1);;
1910: }
1911: push @{ $Apache::londefdef::table[-1]{'columns'} }, $what_to_push;
1912: $Apache::londefdef::table[-1]{'counter_columns'}++;
1913: &Apache::lonxml::startredirection();
1914: return '';
1915: }
1916:
1917: sub end_td_tex {
1918: my ($parstack,$parser,$safeeval) = @_;
1919: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
1920: my $data=&Apache::lonxml::endredirection();
1921: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1922: if (defined $TeXwidth) {
1923: my $current_length=&recalc($TeXwidth);
1924: $current_length=~/(\d+)/;
1925: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
1926: $Apache::londefdef::table[-1]{'length'} .= '0,';
1927: } else {
1928: if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
1929: my $current_length=&recalc($1);
1930: $current_length=~/(\d+\.?\d*)/;
1931: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
1932: $Apache::londefdef::table[-1]{'length'} .= '0,';
1933: } else {
1934: $data=~s/^\s+(\S.*)/$1/;
1935: $data=~s/(.*\S)\s+$/$1/;
1936: $data=~s/(\s)+/$1/;
1937: my $current_length=0;
1938: if ($data=~/\\vskip/) {
1939: my $newdata=$data;
1940: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
1941: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
1942: foreach my $elementdata (@newdata) {
1943: $elementdata=~s/^\s+(\S.*)/$1/;
1944: $elementdata=~s/(.*\S)\s+$/$1/;
1945: $elementdata=~s/(\s)+/$1/;
1946: my $lengthnewdata=1.8*length($elementdata);
1947: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1948: }
1949: } else {
1950: $current_length=1.8*length($data);
1951: }
1952: $Apache::londefdef::table[-1]{'length'} .= $current_length.',';
1953: $Apache::londefdef::table[-1]{'TeXlength'} .= '0,';
1954: }
1955: }
1956: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
1957: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
1958: }
1959: @{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{TOBECHANGEDONNUMBER}{'.$data.'} '.$Apache::londefdef::table[-1]{'vinc'};
1960: return'';
1961: }
1962:
1963: sub end_td {
1964: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1965: my $currentstring = '';
1966: if ($target eq 'web') {
1967: $currentstring = $token->[2];
1968: } elsif ($target eq 'tex') {
1969: $Apache::londefdef::TD_redirection =0;
1970: &end_td_tex($parstack,$parser,$safeeval);
1971: }
1972: return $currentstring;
1973: }
1974:
1975: #-- <th> tag (end tag optional)
1976: sub start_th {
1977: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1978: my $currentstring = '';
1979: if ($target eq 'web') {
1980: $currentstring = $token->[4];
1981: } elsif ($target eq 'tex') {
1982: my $what_to_push = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
1983: if ($what_to_push eq '') {
1984: $what_to_push = substr($Apache::londefdef::table[-1]{'rows'}[0],0,1);;
1985: }
1986: push @{ $Apache::londefdef::table[-1]{'columns'} }, $what_to_push;
1987: $Apache::londefdef::table[-1]{'counter_columns'}++;
1988: &Apache::lonxml::startredirection();
1989: }
1990: return $currentstring;
1991: }
1992:
1993: sub end_th {
1994: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1995: my $currentstring = '';
1996: if ($target eq 'web') {
1997: $currentstring = $token->[2];
1998: } elsif ($target eq 'tex') {
1999: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2000: my $data=&Apache::lonxml::endredirection();
2001: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2002: if (defined $TeXwidth) {
2003: my $current_length=&recalc($TeXwidth);
2004: $current_length=~/(\d+)/;
2005: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
2006: $Apache::londefdef::table[-1]{'length'} .= '0,';
2007: } else {
2008: if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2009: my $current_length=&recalc($1);
2010: $current_length=~/(\d+)/;
2011: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
2012: $Apache::londefdef::table[-1]{'length'} .= '0,';
2013: } else {
2014: $data=~/^\s*(\S.*)/;
2015: $data=$1;
2016: $data=~/(.*\S)\s*$/;
2017: $data=$1;
2018: my $current_length=2*length($data);
2019: $Apache::londefdef::table[-1]{'length'} .= $current_length.',';
2020: $Apache::londefdef::table[-1]{'TeXlength'} .= '0,';
2021: }
2022: }
2023: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2024: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2025: }
2026: $data='\textbf{'.$data.'}';
2027: @{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{TOBECHANGEDONNUMBER}{'.$data.'} '.$Apache::londefdef::table[-1]{'vinc'};
2028: }
2029: return $currentstring;
2030: }
2031: #-- <img> tag
2032: sub start_img {
2033: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2034: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2035: undef,1);
2036: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
2037: my $currentstring = '';
2038: my $width_param = '';
2039: my $height_param = '';
2040: my $scaling = .3;
2041: if ($target eq 'web') {
2042: if ($ENV{'browser.imagesuppress'} ne 'on') {
2043: $currentstring.= $token->[4];
2044: } else {
2045: my $alttag= &Apache::lonxml::get_param
2046: ('alt',$parstack,$safeeval,undef,1);
2047: unless ($alttag) {
2048: $alttag=&Apache::lonmeta::alttag
2049: ($Apache::lonxml::pwd[-1],$src);
2050: }
2051: $currentstring.='[IMAGE: '.$alttag.']';
2052: }
2053: } elsif ($target eq 'tex') {
2054: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
2055: &image_replication($src);
2056: #if original gif/jpg/png file exist do following:
2057: if (-e $src) {
2058: #defines the default size of image
2059: my $image = Image::Magick->new;
2060: my $current_figure = $image->Read($src);
2061: $width_param = $image->Get('width') * $scaling;;
2062: $height_param = $image->Get('height') * $scaling;;
2063: undef $image;
2064: #do we have any specified size of the picture?
2065: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval);
2066: my $TeXheight = &Apache::lonxml::get_param('TeXheight',$parstack,$safeeval);
2067: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
2068: undef,1);
2069: if ($TeXwidth ne '') {
2070: if ($TeXwidth=~/(\d+)\s*\%/) {
2071: $width_param = $1*$ENV{'form.textwidth'}/100;
2072: } else {
2073: $width_param = $TeXwidth;
2074: }
2075: } elsif ($TeXheight ne '') {
2076: $width_param = $TeXheight/$height_param*$width_param;
2077: } elsif ($width ne '') {
2078: $width_param = $width*$scaling;
2079: }
2080: if ($width_param > $ENV{'form.textwidth'}) {$width_param =0.95*$ENV{'form.textwidth'}}
2081: my $file;
2082: my $path;
2083: if ($src =~ m!(.*)/([^/]*)$!) {
2084: $file = $2;
2085: $path = $1.'/';
2086: }
2087: my $newsrc = $src;
2088: $newsrc =~ s/\.(gif|jpg|png)$/.eps/i;
2089: $file=~s/\.(gif|jpg|png)$/.eps/i;
2090: #where can we find the picture?
2091: if (-e $newsrc) {
2092: #eps counterpart for image exist
2093: if ($path) {
2094: $currentstring .= '\vskip 1 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
2095: }
2096: } else {
2097: #there is no eps counterpart for image - check for ps one
2098: $newsrc =~ s/\.eps$/\.ps/;
2099: if (-e $newsrc) {
2100: #ps counterpart for image exist
2101: $file =~ s/\.eps$/\.ps/;
2102: if ($path) {
2103: $currentstring .= '\vskip 1 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
2104: }
2105: } else {
2106: #there aren't eps or ps - so create eps
2107: my $temp_file;
2108: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.dat";
2109: $temp_file = Apache::File->new('>>'.$filename);
2110: print $temp_file "$src\n";
2111: $currentstring .= '\vskip 1 mm \graphicspath{{/home/httpd/prtspool/}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
2112: }
2113: }
2114: } else {
2115: #original image file doesn't exist so check the alt attribute
2116: my $alt =
2117: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2118: unless ($alt) {
2119: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2120: }
2121:
2122: if ($alt) {
2123: $currentstring .= ' '.$alt.' ';
2124: } else {
2125: #<allow> tag will care about replication
2126: }
2127: }
2128: }
2129: return $currentstring;
2130: }
2131:
2132: sub end_img {
2133: my ($target,$token) = @_;
2134: my $currentstring = '';
2135: if ($target eq 'web') {
2136: $currentstring = $token->[2];
2137: } elsif ($target eq 'tex') {
2138: $currentstring = '';
2139: }
2140: return $currentstring;
2141: }
2142:
2143: #-- <applet> tag
2144: sub start_applet {
2145: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2146:
2147: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
2148: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$code;
2149:
2150: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2151: undef,1);
2152: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$archive;
2153:
2154: my $currentstring = '';
2155: if ($target eq 'web') {
2156: if ($ENV{'browser.appletsuppress'} ne 'on') {
2157: $currentstring = $token->[4];
2158: } else {
2159: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2160: $safeeval,undef,1);
2161: unless ($alttag) {
2162: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2163: $code);
2164: }
2165: $currentstring='[APPLET: '.$alttag.']';
2166: }
2167: } elsif ($target eq 'tex') {
2168: $currentstring = " \\begin{figure} ";
2169: }
2170: return $currentstring;
2171: }
2172:
2173: sub end_applet {
2174: my ($target,$token) = @_;
2175: my $currentstring = '';
2176: if ($target eq 'web') {
2177: $currentstring = $token->[2];
2178: } elsif ($target eq 'tex') {
2179: $currentstring = " \\end{figure}";
2180: }
2181: return $currentstring;
2182: }
2183:
2184: #-- <embed> tag
2185: sub start_embed {
2186: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2187: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2188: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
2189: my $currentstring = '';
2190: if ($target eq 'web') {
2191: if ($ENV{'browser.embedsuppress'} ne 'on') {
2192: $currentstring = $token->[4];
2193: } else {
2194: my $alttag=&Apache::lonxml::get_param
2195: ('alt',$parstack,$safeeval,undef,1);
2196: unless ($alttag) {
2197: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2198: }
2199: $currentstring='[EMBED: '.$alttag.']';
2200: }
2201: } elsif ($target eq 'tex') {
2202: $currentstring = " \\begin{figure} ";
2203: }
2204: return $currentstring;
2205: }
2206:
2207: sub end_embed {
2208: my ($target,$token) = @_;
2209: my $currentstring = '';
2210: if ($target eq 'web') {
2211: $currentstring = $token->[2];
2212: } elsif ($target eq 'tex') {
2213: $currentstring = " \\end{figure}";
2214: }
2215: return $currentstring;
2216: }
2217:
2218: #-- <param> tag
2219: sub start_param {
2220: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2221: if (&Apache::lonxml::get_param
2222: ('name',$parstack,$safeeval,undef,1)=~/^cabbase$/i) {
2223: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2224: &Apache::lonxml::get_param('value',$parstack,$safeeval,undef,1);
2225: }
2226: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2227: &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2228: my $currentstring = '';
2229: if ($target eq 'web') {
2230: $currentstring = $token->[4];
2231: } elsif ($target eq 'tex') {
2232: $currentstring = " \\begin{figure} ";
2233: }
2234: return $currentstring;
2235: }
2236:
2237: sub end_param {
2238: my ($target,$token) = @_;
2239: my $currentstring = '';
2240: if ($target eq 'web') {
2241: $currentstring = $token->[2];
2242: } elsif ($target eq 'tex') {
2243: $currentstring = " \\end{figure}";
2244: }
2245: return $currentstring;
2246: }
2247:
2248: #-- <allow> tag
2249: sub start_allow {
2250: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2251: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2252: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
2253: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2254: &Apache::lonnet::clutter($src);
2255: &image_replication($src);
2256: my $result;
2257: if ($target eq 'edit') {
2258: $result .=&Apache::edit::tag_start($target,$token);
2259: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
2260: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
2261: } elsif ($target eq 'modified') {
2262: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2263: $safeeval,'src');
2264: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2265: }
2266: return $result;
2267: }
2268:
2269: sub end_allow {
2270: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2271: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
2272: return '';
2273: }
2274:
2275: #-- Frames
2276: sub start_frameset {
2277: my ($target,$token) = @_;
2278: my $currentstring = '';
2279: if ($target eq 'web') {
2280: if (!$Apache::lonxml::registered) {
2281: $currentstring.='<head>'.
2282: &Apache::lonmenu::registerurl(undef,$target).'</head>';
2283: }
2284: my $onLoad='';
2285: foreach my $key (keys(%{$token->[2]})) {
2286: if ($key =~ /^onload$/i) {
2287: $onLoad.=$token->[2]->{$key}.';';
2288: delete($token->[2]->{$key});
2289: }
2290: }
2291: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
2292: my $onUnload='';
2293: foreach my $key (keys(%{$token->[2]})) {
2294: if ($key =~ /^onunload$/i) {
2295: $onUnload.=$token->[2]->{$key}.';';
2296: delete($token->[2]->{$key});
2297: }
2298: }
2299: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
2300: ';'.$onUnload;
2301:
2302: $currentstring .= '<'.$token->[1];
2303: foreach (keys %{$token->[2]}) {
2304: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
2305: }
2306: $currentstring.='>';
2307: }
2308: return $currentstring;
2309: }
2310:
2311: sub end_frameset {
2312: my ($target,$token) = @_;
2313: my $currentstring = '';
2314: if ($target eq 'web') {
2315: $currentstring = $token->[2];
2316: }
2317: return $currentstring;
2318: }
2319:
2320: #-- <xmp>
2321: sub start_xmp {
2322: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2323: my $currentstring = '';
2324: if ($target eq 'web') {
2325: $currentstring .= $token->[4];
2326: } elsif ($target eq 'tex') {
2327: $currentstring .= '\begin{verbatim}';
2328: }
2329: return $currentstring;
2330: }
2331:
2332: sub end_xmp {
2333: my ($target,$token) = @_;
2334: my $currentstring = '';
2335: if ($target eq 'web') {
2336: $currentstring .= $token->[2];
2337: } elsif ($target eq 'tex') {
2338: $currentstring .= '\end{verbatim}';
2339: }
2340: return $currentstring;
2341: }
2342:
2343: #-- <pre>
2344: sub start_pre {
2345: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2346: my $currentstring = '';
2347: if ($target eq 'web') {
2348: $currentstring .= $token->[4];
2349: } elsif ($target eq 'tex') {
2350: $currentstring .= '\begin{verbatim}';
2351: }
2352: return $currentstring;
2353: }
2354:
2355: sub end_pre {
2356: my ($target,$token) = @_;
2357: my $currentstring = '';
2358: if ($target eq 'web') {
2359: $currentstring .= $token->[2];
2360: } elsif ($target eq 'tex') {
2361: $currentstring .= '\end{verbatim}';
2362: }
2363: return $currentstring;
2364: }
2365:
2366: #-- <insert>
2367: sub start_insert {
2368: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2369: my $currentstring = '';
2370: if ($target eq 'web') {
2371: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2372: $currentstring .= '<b>'.$display.'</b>';;
2373: }
2374: return $currentstring;
2375: }
2376:
2377: sub end_insert {
2378: my ($target,$token) = @_;
2379: my $currentstring = '';
2380: if ($target eq 'web') {
2381: $currentstring .= '';
2382: }
2383: return $currentstring;
2384: }
2385:
2386: #-- <externallink>
2387: sub start_externallink {
2388: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2389: my $currentstring = '';
2390: if ($target eq 'web') {
2391: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2392: $currentstring .= '<b>'.$display.'</b>';;
2393: }
2394: return $currentstring;
2395: }
2396:
2397: sub end_externallink {
2398: my ($target,$token) = @_;
2399: my $currentstring = '';
2400: if ($target eq 'web') {
2401: $currentstring .= '';
2402: }
2403: return $currentstring;
2404: }
2405:
2406: #-- <blankspace heigth="">
2407: sub start_blankspace {
2408: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2409: my $currentstring = '';
2410: if ($target eq 'tex') {
2411: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
2412: $currentstring .= '\vskip '.$howmuch.' ';
2413: }
2414: return $currentstring;
2415: }
2416:
2417: sub end_blankspace {
2418: my ($target,$token) = @_;
2419: my $currentstring = '';
2420: if ($target eq 'tex') {
2421: $currentstring .= '';
2422: }
2423: return $currentstring;
2424: }
2425:
2426: #-- <abbr> tag
2427: sub start_abbr {
2428: my ($target,$token) = @_;
2429: my $currentstring = '';
2430: if ($target eq 'web') {
2431: $currentstring = $token->[4];
2432: }
2433: return $currentstring;
2434: }
2435:
2436: sub end_abbr {
2437: my ($target,$token) = @_;
2438: my $currentstring = '';
2439: if ($target eq 'web') {
2440: $currentstring = $token->[2];
2441: }
2442: return $currentstring;
2443: }
2444:
2445: #-- <acronym> tag
2446: sub start_acronym {
2447: my ($target,$token) = @_;
2448: my $currentstring = '';
2449: if ($target eq 'web') {
2450: $currentstring = $token->[4];
2451: }
2452: return $currentstring;
2453: }
2454:
2455: sub end_acronym {
2456: my ($target,$token) = @_;
2457: my $currentstring = '';
2458: if ($target eq 'web') {
2459: $currentstring = $token->[2];
2460: }
2461: return $currentstring;
2462: }
2463:
2464: #-- <area> tag
2465: sub start_area {
2466: my ($target,$token) = @_;
2467: my $currentstring = '';
2468: if ($target eq 'web') {
2469: $currentstring = $token->[4];
2470: }
2471: return $currentstring;
2472: }
2473:
2474: sub end_area {
2475: my ($target,$token) = @_;
2476: my $currentstring = '';
2477: if ($target eq 'web') {
2478: $currentstring = $token->[2];
2479: }
2480: return $currentstring;
2481: }
2482:
2483: #-- <base> tag
2484: sub start_base {
2485: my ($target,$token) = @_;
2486: my $currentstring = '';
2487: if ($target eq 'web') {
2488: $currentstring = $token->[4];
2489: }
2490: return $currentstring;
2491: }
2492:
2493: sub end_base {
2494: my ($target,$token) = @_;
2495: my $currentstring = '';
2496: if ($target eq 'web') {
2497: $currentstring = $token->[2];
2498: }
2499: return $currentstring;
2500: }
2501:
2502: #-- <bdo> tag
2503: sub start_bdo {
2504: my ($target,$token) = @_;
2505: my $currentstring = '';
2506: if ($target eq 'web') {
2507: $currentstring = $token->[4];
2508: }
2509: return $currentstring;
2510: }
2511:
2512: sub end_bdo {
2513: my ($target,$token) = @_;
2514: my $currentstring = '';
2515: if ($target eq 'web') {
2516: $currentstring = $token->[2];
2517: }
2518: return $currentstring;
2519: }
2520:
2521: #-- <bgsound> tag
2522: sub start_bgsound {
2523: my ($target,$token) = @_;
2524: my $currentstring = '';
2525: if ($target eq 'web') {
2526: $currentstring = $token->[4];
2527: }
2528: return $currentstring;
2529: }
2530:
2531: sub end_bgsound {
2532: my ($target,$token) = @_;
2533: my $currentstring = '';
2534: if ($target eq 'web') {
2535: $currentstring = $token->[2];
2536: }
2537: return $currentstring;
2538: }
2539:
2540: #-- <blink> tag
2541: sub start_blink {
2542: my ($target,$token) = @_;
2543: my $currentstring = '';
2544: if ($target eq 'web') {
2545: $currentstring = $token->[4];
2546: }
2547: return $currentstring;
2548: }
2549:
2550: sub end_blink {
2551: my ($target,$token) = @_;
2552: my $currentstring = '';
2553: if ($target eq 'web') {
2554: $currentstring = $token->[2];
2555: }
2556: return $currentstring;
2557: }
2558:
2559: #-- <blockquote> tag
2560: sub start_blockquote {
2561: my ($target,$token) = @_;
2562: my $currentstring = '';
2563: if ($target eq 'web') {
2564: $currentstring = $token->[4];
2565: }
2566: return $currentstring;
2567: }
2568:
2569: sub end_blockquote {
2570: my ($target,$token) = @_;
2571: my $currentstring = '';
2572: if ($target eq 'web') {
2573: $currentstring = $token->[2];
2574: }
2575: return $currentstring;
2576: }
2577:
2578: #-- <button> tag
2579: sub start_button {
2580: my ($target,$token) = @_;
2581: my $currentstring = '';
2582: if ($target eq 'web') {
2583: $currentstring = $token->[4];
2584: }
2585: return $currentstring;
2586: }
2587:
2588: sub end_button {
2589: my ($target,$token) = @_;
2590: my $currentstring = '';
2591: if ($target eq 'web') {
2592: $currentstring = $token->[2];
2593: }
2594: return $currentstring;
2595: }
2596:
2597: #-- <caption> tag
2598: sub start_caption {
2599: my ($target,$token) = @_;
2600: my $currentstring = '';
2601: if ($target eq 'web') {
2602: $currentstring = $token->[4];
2603: }
2604: return $currentstring;
2605: }
2606:
2607: sub end_caption {
2608: my ($target,$token) = @_;
2609: my $currentstring = '';
2610: if ($target eq 'web') {
2611: $currentstring = $token->[2];
2612: }
2613: return $currentstring;
2614: }
2615:
2616: #-- <col> tag
2617: sub start_col {
2618: my ($target,$token) = @_;
2619: my $currentstring = '';
2620: if ($target eq 'web') {
2621: $currentstring = $token->[4];
2622: }
2623: return $currentstring;
2624: }
2625:
2626: sub end_col {
2627: my ($target,$token) = @_;
2628: my $currentstring = '';
2629: if ($target eq 'web') {
2630: $currentstring = $token->[2];
2631: }
2632: return $currentstring;
2633: }
2634:
2635: #-- <colgroup> tag
2636: sub start_colgroup {
2637: my ($target,$token) = @_;
2638: my $currentstring = '';
2639: if ($target eq 'web') {
2640: $currentstring = $token->[4];
2641: }
2642: return $currentstring;
2643: }
2644:
2645: sub end_colgroup {
2646: my ($target,$token) = @_;
2647: my $currentstring = '';
2648: if ($target eq 'web') {
2649: $currentstring = $token->[2];
2650: }
2651: return $currentstring;
2652: }
2653:
2654: #-- <del> tag
2655: sub start_del {
2656: my ($target,$token) = @_;
2657: my $currentstring = '';
2658: if ($target eq 'web') {
2659: $currentstring = $token->[4];
2660: }
2661: return $currentstring;
2662: }
2663:
2664: sub end_del {
2665: my ($target,$token) = @_;
2666: my $currentstring = '';
2667: if ($target eq 'web') {
2668: $currentstring = $token->[2];
2669: }
2670: return $currentstring;
2671: }
2672:
2673: #-- <fieldset> tag
2674: sub start_fieldset {
2675: my ($target,$token) = @_;
2676: my $currentstring = '';
2677: if ($target eq 'web') {
2678: $currentstring = $token->[4];
2679: }
2680: return $currentstring;
2681: }
2682:
2683: sub end_fieldset {
2684: my ($target,$token) = @_;
2685: my $currentstring = '';
2686: if ($target eq 'web') {
2687: $currentstring = $token->[2];
2688: }
2689: return $currentstring;
2690: }
2691:
2692: #-- <frame> tag
2693: sub start_frame {
2694: my ($target,$token) = @_;
2695: my $currentstring = '';
2696: if ($target eq 'web') {
2697: $currentstring = $token->[4];
2698: }
2699: return $currentstring;
2700: }
2701:
2702: sub end_frame {
2703: my ($target,$token) = @_;
2704: my $currentstring = '';
2705: if ($target eq 'web') {
2706: $currentstring = $token->[2];
2707: }
2708: return $currentstring;
2709: }
2710:
2711: #-- <iframe> tag
2712: sub start_iframe {
2713: my ($target,$token) = @_;
2714: my $currentstring = '';
2715: if ($target eq 'web') {
2716: $currentstring = $token->[4];
2717: }
2718: return $currentstring;
2719: }
2720:
2721: sub end_iframe {
2722: my ($target,$token) = @_;
2723: my $currentstring = '';
2724: if ($target eq 'web') {
2725: $currentstring = $token->[2];
2726: }
2727: return $currentstring;
2728: }
2729:
2730: #-- <ins> tag
2731: sub start_ins {
2732: my ($target,$token) = @_;
2733: my $currentstring = '';
2734: if ($target eq 'web') {
2735: $currentstring = $token->[4];
2736: }
2737: return $currentstring;
2738: }
2739:
2740: sub end_ins {
2741: my ($target,$token) = @_;
2742: my $currentstring = '';
2743: if ($target eq 'web') {
2744: $currentstring = $token->[2];
2745: }
2746: return $currentstring;
2747: }
2748:
2749: #-- <isindex> tag
2750: sub start_isindex {
2751: my ($target,$token) = @_;
2752: my $currentstring = '';
2753: if ($target eq 'web') {
2754: $currentstring = $token->[4];
2755: }
2756: return $currentstring;
2757: }
2758:
2759: sub end_isindex {
2760: my ($target,$token) = @_;
2761: my $currentstring = '';
2762: if ($target eq 'web') {
2763: $currentstring = $token->[2];
2764: }
2765: return $currentstring;
2766: }
2767:
2768: #-- <keygen> tag
2769: sub start_keygen {
2770: my ($target,$token) = @_;
2771: my $currentstring = '';
2772: if ($target eq 'web') {
2773: $currentstring = $token->[4];
2774: }
2775: return $currentstring;
2776: }
2777:
2778: sub end_keygen {
2779: my ($target,$token) = @_;
2780: my $currentstring = '';
2781: if ($target eq 'web') {
2782: $currentstring = $token->[2];
2783: }
2784: return $currentstring;
2785: }
2786:
2787: #-- <label> tag
2788: sub start_label {
2789: my ($target,$token) = @_;
2790: my $currentstring = '';
2791: if ($target eq 'web') {
2792: $currentstring = $token->[4];
2793: }
2794: return $currentstring;
2795: }
2796:
2797: sub end_label {
2798: my ($target,$token) = @_;
2799: my $currentstring = '';
2800: if ($target eq 'web') {
2801: $currentstring = $token->[2];
2802: }
2803: return $currentstring;
2804: }
2805:
2806: #-- <layer> tag
2807: sub start_layer {
2808: my ($target,$token) = @_;
2809: my $currentstring = '';
2810: if ($target eq 'web') {
2811: $currentstring = $token->[4];
2812: }
2813: return $currentstring;
2814: }
2815:
2816: sub end_layer {
2817: my ($target,$token) = @_;
2818: my $currentstring = '';
2819: if ($target eq 'web') {
2820: $currentstring = $token->[2];
2821: }
2822: return $currentstring;
2823: }
2824:
2825: #-- <legend> tag
2826: sub start_legend {
2827: my ($target,$token) = @_;
2828: my $currentstring = '';
2829: if ($target eq 'web') {
2830: $currentstring = $token->[4];
2831: }
2832: return $currentstring;
2833: }
2834:
2835: sub end_legend {
2836: my ($target,$token) = @_;
2837: my $currentstring = '';
2838: if ($target eq 'web') {
2839: $currentstring = $token->[2];
2840: }
2841: return $currentstring;
2842: }
2843:
2844: #-- <link> tag
2845: sub start_link {
2846: my ($target,$token) = @_;
2847: my $currentstring = '';
2848: if ($target eq 'web') {
2849: $currentstring = $token->[4];
2850: }
2851: return $currentstring;
2852: }
2853:
2854: sub end_link {
2855: my ($target,$token) = @_;
2856: my $currentstring = '';
2857: if ($target eq 'web') {
2858: $currentstring = $token->[2];
2859: }
2860: return $currentstring;
2861: }
2862:
2863: #-- <marquee> tag
2864: sub start_marquee {
2865: my ($target,$token) = @_;
2866: my $currentstring = '';
2867: if ($target eq 'web') {
2868: $currentstring = $token->[4];
2869: }
2870: return $currentstring;
2871: }
2872:
2873: sub end_marquee {
2874: my ($target,$token) = @_;
2875: my $currentstring = '';
2876: if ($target eq 'web') {
2877: $currentstring = $token->[2];
2878: }
2879: return $currentstring;
2880: }
2881:
2882: #-- <malticol> tag
2883: sub start_malticol {
2884: my ($target,$token) = @_;
2885: my $currentstring = '';
2886: if ($target eq 'web') {
2887: $currentstring = $token->[4];
2888: }
2889: return $currentstring;
2890: }
2891:
2892: sub end_malticol {
2893: my ($target,$token) = @_;
2894: my $currentstring = '';
2895: if ($target eq 'web') {
2896: $currentstring = $token->[2];
2897: }
2898: return $currentstring;
2899: }
2900:
2901: #-- <nobr> tag
2902: sub start_nobr {
2903: my ($target,$token) = @_;
2904: my $currentstring = '';
2905: if ($target eq 'web') {
2906: $currentstring = $token->[4];
2907: }
2908: return $currentstring;
2909: }
2910:
2911: sub end_nobr {
2912: my ($target,$token) = @_;
2913: my $currentstring = '';
2914: if ($target eq 'web') {
2915: $currentstring = $token->[2];
2916: }
2917: return $currentstring;
2918: }
2919:
2920: #-- <noembed> tag
2921: sub start_noembed {
2922: my ($target,$token) = @_;
2923: my $currentstring = '';
2924: if ($target eq 'web') {
2925: $currentstring = $token->[4];
2926: }
2927: return $currentstring;
2928: }
2929:
2930: sub end_noembed {
2931: my ($target,$token) = @_;
2932: my $currentstring = '';
2933: if ($target eq 'web') {
2934: $currentstring = $token->[2];
2935: }
2936: return $currentstring;
2937: }
2938:
2939: #-- <noframes> tag
2940: sub start_noframes {
2941: my ($target,$token) = @_;
2942: my $currentstring = '';
2943: if ($target eq 'web') {
2944: $currentstring = $token->[4];
2945: }
2946: return $currentstring;
2947: }
2948:
2949: sub end_noframes {
2950: my ($target,$token) = @_;
2951: my $currentstring = '';
2952: if ($target eq 'web') {
2953: $currentstring = $token->[2];
2954: }
2955: return $currentstring;
2956: }
2957:
2958: #-- <nolayer> tag
2959: sub start_nolayer {
2960: my ($target,$token) = @_;
2961: my $currentstring = '';
2962: if ($target eq 'web') {
2963: $currentstring = $token->[4];
2964: }
2965: return $currentstring;
2966: }
2967:
2968: sub end_nolayer {
2969: my ($target,$token) = @_;
2970: my $currentstring = '';
2971: if ($target eq 'web') {
2972: $currentstring = $token->[2];
2973: }
2974: return $currentstring;
2975: }
2976:
2977: #-- <noscript> tag
2978: sub start_noscript {
2979: my ($target,$token) = @_;
2980: my $currentstring = '';
2981: if ($target eq 'web') {
2982: $currentstring = $token->[4];
2983: }
2984: return $currentstring;
2985: }
2986:
2987: sub end_noscript {
2988: my ($target,$token) = @_;
2989: my $currentstring = '';
2990: if ($target eq 'web') {
2991: $currentstring = $token->[2];
2992: }
2993: return $currentstring;
2994: }
2995:
2996: #-- <object> tag
2997: sub start_object {
2998: my ($target,$token) = @_;
2999: my $currentstring = '';
3000: if ($target eq 'web') {
3001: $currentstring = $token->[4];
3002: }
3003: return $currentstring;
3004: }
3005:
3006: sub end_object {
3007: my ($target,$token) = @_;
3008: my $currentstring = '';
3009: if ($target eq 'web') {
3010: $currentstring = $token->[2];
3011: }
3012: return $currentstring;
3013: }
3014:
3015: #-- <optgroup> tag
3016: sub start_optgroup {
3017: my ($target,$token) = @_;
3018: my $currentstring = '';
3019: if ($target eq 'web') {
3020: $currentstring = $token->[4];
3021: }
3022: return $currentstring;
3023: }
3024:
3025: sub end_optgroup {
3026: my ($target,$token) = @_;
3027: my $currentstring = '';
3028: if ($target eq 'web') {
3029: $currentstring = $token->[2];
3030: }
3031: return $currentstring;
3032: }
3033:
3034: #-- <samp> tag
3035: sub start_samp {
3036: my ($target,$token) = @_;
3037: my $currentstring = '';
3038: if ($target eq 'web') {
3039: $currentstring = $token->[4];
3040: }
3041: return $currentstring;
3042: }
3043:
3044: sub end_samp {
3045: my ($target,$token) = @_;
3046: my $currentstring = '';
3047: if ($target eq 'web') {
3048: $currentstring = $token->[2];
3049: }
3050: return $currentstring;
3051: }
3052:
3053: #-- <server> tag
3054: sub start_server {
3055: my ($target,$token) = @_;
3056: my $currentstring = '';
3057: if ($target eq 'web') {
3058: $currentstring = $token->[4];
3059: }
3060: return $currentstring;
3061: }
3062:
3063: sub end_server {
3064: my ($target,$token) = @_;
3065: my $currentstring = '';
3066: if ($target eq 'web') {
3067: $currentstring = $token->[2];
3068: }
3069: return $currentstring;
3070: }
3071:
3072: #-- <spacer> tag
3073: sub start_spacer {
3074: my ($target,$token) = @_;
3075: my $currentstring = '';
3076: if ($target eq 'web') {
3077: $currentstring = $token->[4];
3078: }
3079: return $currentstring;
3080: }
3081:
3082: sub end_spacer {
3083: my ($target,$token) = @_;
3084: my $currentstring = '';
3085: if ($target eq 'web') {
3086: $currentstring = $token->[2];
3087: }
3088: return $currentstring;
3089: }
3090:
3091: #-- <span> tag
3092: sub start_span {
3093: my ($target,$token) = @_;
3094: my $currentstring = '';
3095: if ($target eq 'web') {
3096: $currentstring = $token->[4];
3097: }
3098: return $currentstring;
3099: }
3100:
3101: sub end_span {
3102: my ($target,$token) = @_;
3103: my $currentstring = '';
3104: if ($target eq 'web') {
3105: $currentstring = $token->[2];
3106: }
3107: return $currentstring;
3108: }
3109:
3110: #-- <tbody> tag
3111: sub start_tbody {
3112: my ($target,$token) = @_;
3113: my $currentstring = '';
3114: if ($target eq 'web') {
3115: $currentstring = $token->[4];
3116: }
3117: return $currentstring;
3118: }
3119:
3120: sub end_tbody {
3121: my ($target,$token) = @_;
3122: my $currentstring = '';
3123: if ($target eq 'web') {
3124: $currentstring = $token->[2];
3125: }
3126: return $currentstring;
3127: }
3128:
3129: #-- <tfoot> tag (end tag optional)
3130: sub start_tfoot {
3131: my ($target,$token) = @_;
3132: my $currentstring = '';
3133: if ($target eq 'web') {
3134: $currentstring = $token->[4];
3135: }
3136: return $currentstring;
3137: }
3138:
3139: sub end_tfoot {
3140: my ($target,$token) = @_;
3141: my $currentstring = '';
3142: if ($target eq 'web') {
3143: $currentstring = $token->[2];
3144: }
3145: return $currentstring;
3146: }
3147:
3148: #-- <thead> tag (end tag optional)
3149: sub start_thead {
3150: my ($target,$token) = @_;
3151: my $currentstring = '';
3152: if ($target eq 'web') {
3153: $currentstring = $token->[4];
3154: }
3155: return $currentstring;
3156: }
3157:
3158: sub end_thead {
3159: my ($target,$token) = @_;
3160: my $currentstring = '';
3161: if ($target eq 'web') {
3162: $currentstring = $token->[2];
3163: }
3164: return $currentstring;
3165: }
3166:
3167: #-- <var> tag
3168: sub start_var {
3169: my ($target,$token) = @_;
3170: my $currentstring = '';
3171: if ($target eq 'web') {
3172: $currentstring = $token->[4];
3173: } elsif ($target eq 'tex') {
3174: $currentstring = '\textit{';
3175: }
3176: return $currentstring;
3177: }
3178:
3179: sub end_var {
3180: my ($target,$token) = @_;
3181: my $currentstring = '';
3182: if ($target eq 'web') {
3183: $currentstring = $token->[2];
3184: } elsif ($target eq 'tex') {
3185: $currentstring = '}';
3186: }
3187: return $currentstring;
3188: }
3189:
3190: #-- <wbr> tag (end tag forbidden)
3191: sub start_wbr {
3192: my ($target,$token) = @_;
3193: my $currentstring = '';
3194: if ($target eq 'web') {
3195: $currentstring = $token->[4];
3196: }
3197: return $currentstring;
3198: }
3199:
3200: sub end_wbr {
3201: my ($target,$token) = @_;
3202: my $currentstring = '';
3203: if ($target eq 'web') {
3204: $currentstring = $token->[2];
3205: }
3206: return $currentstring;
3207: }
3208:
3209: #-- <hideweboutput> tag
3210: sub start_hideweboutput {
3211: my ($target,$token) = @_;
3212: if ($target eq 'web') {
3213: &Apache::lonxml::startredirection();
3214: }
3215: return '';
3216: }
3217:
3218: sub end_hideweboutput {
3219: my ($target,$token) = @_;
3220: my $currentstring = '';
3221: if ($target eq 'web') {
3222: $currentstring = &Apache::lonxml::endredirection();
3223: }
3224: return '';
3225: }
3226:
3227:
3228: sub image_replication {
3229: my $src = shift;
3230: if (not -e $src) {
3231: #replicates image itself
3232: &Apache::lonnet::repcopy($src);
3233: #replicates eps or ps
3234: my $newsrc = $src;
3235: $newsrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
3236: if (not -e $newsrc) {
3237: if (&Apache::lonnet::repcopy($newsrc) ne 'OK') {
3238: $newsrc =~ s/\.eps$/\.ps/;
3239: &Apache::lonnet::repcopy($newsrc);
3240: }
3241: }
3242: }
3243: return '';
3244: }
3245:
3246: sub recalc {
3247: my $argument = shift;
3248: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
3249: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
3250: my $value=$1;
3251: my $units=$2;
3252: if ($units eq 'cm') {
3253: $value*=10;
3254: } elsif ($units eq 'in') {
3255: $value*=25.4;
3256: } elsif ($units eq 'pc') {
3257: $value*=(25.4*12/72.27);
3258: } elsif ($units eq 'pt') {
3259: $value*=(25.4/72.27);
3260: }
3261: return $value.' mm';
3262: }
3263:
3264: 1;
3265: __END__
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