1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
4: # $Id: londefdef.pm,v 1.181 2003/10/14 14:40:33 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,$$parstack[-1]);
86: #&Apache::lonxml::debug("M is evaulated to:$inside:");
87: }
88: $currentstring = &Apache::lontexconvert::converted(\$inside);
89: if ($Apache::lontexconvert::errorstring) {
90: &Apache::lonxml::warning("tth error: ".
91: $Apache::lontexconvert::errorstring);
92: $Apache::lontexconvert::errorstring='';
93: }
94: #&Apache::lonxml::debug("M is ends with:$currentstring:");
95: $Apache::lonxml::post_evaluate=0;
96: } elsif ($target eq 'tex') {
97: $currentstring = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
98: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
99: if ($eval eq 'on') {
100: $currentstring=&Apache::run::evaluate($currentstring,$safeeval,$$parstack[-1]);
101: }
102: if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
103: $Apache::lonxml::post_evaluate=0;
104: } else {
105: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
106: }
107: return $currentstring;
108: }
109:
110: sub end_m {
111: my ($target,$token) = @_;
112: my $currentstring = '';
113: if ($target eq 'web') {
114: $Apache::lonxml::prevent_entity_encode--;
115: } elsif ($target eq 'tex') {
116: $currentstring = "";
117: } elsif ($target eq 'meta') {
118: }
119: return $currentstring;
120: }
121:
122: sub start_tthoption {
123: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
124: my $result;
125: if ($target eq 'web') {
126: my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser);
127: $inside=~s/^\s*//;
128: if ($ENV{'browser.mathml'}) {
129: &tth::ttmoptions($inside);
130: } else {
131: &tth::tthoptions($inside);
132: }
133: }
134: return $result;
135: }
136:
137: sub end_tthoption {
138: my ($target,$token) = @_;
139: my $result;
140: return $result;
141: }
142:
143: #-- <html> tag (end tag optional)
144: sub start_html {
145: my ($target,$token) = @_;
146: my $currentstring = '';
147: if ($ENV{'browser.mathml'}) {
148: &tth::ttminit();
149: if ($ENV{'browser.unicode'}) {
150: &tth::ttmoptions('-L -u1');
151: } else {
152: &tth::ttmoptions('-L -u0');
153: }
154: } else {
155: &tth::tthinit();
156: if ($ENV{'browser.unicode'}) {
157: &tth::tthoptions('-L -u1');
158: } else {
159: &tth::tthoptions('-L -u0');
160: }
161: }
162: if ($target eq 'web') {
163: $currentstring = &Apache::lonxml::xmlbegin().
164: &Apache::lonxml::fontsettings();
165: } elsif ($target eq 'tex') {
166: @Apache::londefdef::table = ();
167: $currentstring .= '\documentclass[letterpaper]{article}';
168: if ($ENV{'form.latex_type'}=~'batchmode') {$currentstring .='\batchmode';}
169: $currentstring .= '\newcommand{\keephidden}[1]{}
170: \renewcommand{\deg}{$^{\circ}$}
171: \usepackage{longtable}
172: \usepackage{textcomp}
173: \usepackage{makeidx}
174: \usepackage[dvips]{graphicx}
175: \usepackage{epsfig}\usepackage{calc}
176: \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}}
177: \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}}';
178: }
179: return $currentstring;
180: }
181:
182: sub end_html {
183: my ($target,$token) = @_;
184: my $currentstring = '';
185: if ($target eq 'web') {
186: $currentstring = &Apache::lonxml::xmlend();
187: }
188: return $currentstring;
189: }
190:
191: #-- <head> tag (end tag optional)
192: sub start_head {
193: my ($target,$token) = @_;
194: my $currentstring = '';
195: if ($target eq 'web') {
196: $currentstring = $token->[4];
197: }
198: return $currentstring;
199: }
200:
201: sub end_head {
202: my ($target,$token) = @_;
203: my $currentstring = '';
204: if ($target eq 'web' && $ENV{'request.state'} eq 'published') {
205: $currentstring = &Apache::lonmenu::registerurl(undef,$target).
206: $token->[2];
207: }
208: return $currentstring;
209: }
210:
211: #-- <map> tag (end tag required)
212: sub start_map {
213: my ($target,$token) = @_;
214: my $currentstring = '';
215: if ($target eq 'web') {
216: $currentstring = $token->[4];
217: }
218: return $currentstring;
219: }
220:
221: sub end_map {
222: my ($target,$token) = @_;
223: my $currentstring = '';
224: if ($target eq 'web') {
225: $currentstring = $token->[2];
226: }
227: return $currentstring;
228: }
229:
230: #-- <select> tag (end tag required)
231: sub start_select {
232: my ($target,$token) = @_;
233: my $currentstring = '';
234: if ($target eq 'web') {
235: $currentstring = $token->[4];
236: } elsif ($target eq 'tex') {
237: $Apache::londefdef::select=0;
238: }
239: return $currentstring;
240: }
241:
242: sub end_select {
243: my ($target,$token) = @_;
244: my $currentstring = '';
245: if ($target eq 'web') {
246: $currentstring = $token->[2];
247: }
248: return $currentstring;
249: }
250:
251: #-- <option> tag (end tag optional)
252: sub start_option {
253: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
254: my $currentstring = '';
255: if ($target eq 'web') {
256: $currentstring = $token->[4];
257: } elsif ($target eq 'tex') {
258: $Apache::londefdef::select++;
259: if ($Apache::londefdef::select == 1) {
260: $currentstring='\noindent\fbox{'.&Apache::lonxml::get_param('value',$parstack,$safeeval).'}\keephidden{';
261: } else {
262: $currentstring='\keephidden{';
263: }
264: }
265: return $currentstring;
266: }
267:
268: sub end_option {
269: my ($target,$token) = @_;
270: my $currentstring = '';
271: if ($target eq 'web') {
272: $currentstring = $token->[2];
273: } elsif ($target eq 'tex') {
274: $currentstring='}';
275: }
276: return $currentstring;
277: }
278:
279: #-- <input> tag (end tag forbidden)
280: sub start_input {
281: my ($target,$token) = @_;
282: my $currentstring = '';
283: if ($target eq 'web') {
284: $currentstring = $token->[4];
285: }
286: return $currentstring;
287: }
288:
289: sub end_input {
290: my ($target,$token) = @_;
291: my $currentstring = '';
292: if ($target eq 'web') {
293: $currentstring = $token->[2];
294: }
295: return $currentstring;
296: }
297:
298: #-- <textarea> tag (end tag required)
299: sub start_textarea {
300: my ($target,$token) = @_;
301: my $currentstring = '';
302: if ($target eq 'web') {
303: $currentstring = $token->[4];
304: }
305: return $currentstring;
306: }
307:
308: sub end_textarea {
309: my ($target,$token) = @_;
310: my $currentstring = '';
311: if ($target eq 'web') {
312: $currentstring = $token->[2];
313: }
314: return $currentstring;
315: }
316:
317: #-- <form> tag (end tag required)
318: sub start_form {
319: my ($target,$token) = @_;
320: my $currentstring = '';
321: if ($target eq 'web') {
322: $currentstring = $token->[4];
323: }
324: return $currentstring;
325: }
326:
327: sub end_form {
328: my ($target,$token) = @_;
329: my $currentstring = '';
330: if ($target eq 'web') {
331: $currentstring = $token->[2];
332: }
333: return $currentstring;
334: }
335:
336: #-- <title> tag (end tag required)
337: sub start_title {
338: my ($target,$token) = @_;
339: my $currentstring = '';
340: if ($target eq 'web') {
341: $currentstring = $token->[4];
342: } elsif ($target eq 'tex') {
343: $currentstring .= '\keephidden{Title of the document: '
344: }
345: if ($target eq 'meta') {
346: $currentstring='<title>';
347: &start_output();
348: }
349: return $currentstring;
350: }
351:
352: sub end_title {
353: my ($target,$token) = @_;
354: my $currentstring = '';
355: if ($target eq 'web') {
356: $currentstring = $token->[2];
357: } elsif ($target eq 'tex') {
358: $currentstring .= '}';
359: }
360: if ($target eq 'meta') {
361: &end_output();
362: $currentstring='</title>';
363: }
364: return $currentstring;
365: }
366:
367: #-- <meta> tag (end tag forbidden)
368: sub start_meta {
369: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
370: my $currentstring = '';
371: if ($target eq 'web') {
372: my $args='';
373: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
374: if ($args eq '') {
375: &Apache::lonxml::get_all_text("/meta",$parser);
376: } else {
377: $currentstring = $token->[4];
378: }
379: } elsif ($target eq 'meta') {
380: unless (&Apache::lonxml::get_param
381: ('http-equiv',$parstack,$safeeval,undef,1)) {
382: my $name=$token->[2]->{'name'};
383: $name=~tr/A-Z/a-z/;
384: $name=~s/\s/\_/gs;
385: $name=~s/\W//gs;
386: if ($name) {
387: $currentstring='<'.$name;
388: my $display=&Apache::lonxml::get_param
389: ('display',$parstack,$safeeval,undef,1);
390: if ($display) {
391: $display=~s/\"/\'/g;
392: $currentstring.=' display="'.$display.'"';
393: }
394: $currentstring.='>'.
395: &Apache::lonxml::get_param
396: ('content',$parstack,$safeeval,undef,1).
397: '</'.$name.'>';
398: }
399: my $display=&Apache::lonxml::get_param
400: ('display',$parstack,$safeeval,undef,1);
401: if ($display) {
402: $display=&HTML::Entities::encode($display);
403: $currentstring.='<'.$name.'.display>'.$display.
404: '</'.$name.'.display>';
405: }
406: }
407: } elsif ($target eq 'tex') {
408: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
409: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
410: if ((not defined $content) && (not defined $name)) {
411: &Apache::lonxml::startredirection();
412: }
413: }
414: return $currentstring;
415: }
416:
417: sub end_meta {
418: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
419: my $currentstring = '';
420: if ($target eq 'web') {
421: my $args='';
422: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
423: if ($args ne '') {
424: $currentstring = $token->[4];
425: }
426: } elsif ($target eq 'tex') {
427: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
428: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
429: if ((not defined $content) && (not defined $name)) {
430: &Apache::lonxml::endredirection();
431: }
432: }
433: return $currentstring;
434: }
435:
436: # accessrule
437: sub start_accessrule {
438: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
439: my $currentstring = '';
440: my $eff=&Apache::lonxml::get_param
441: ('effect',$parstack,$safeeval,undef,1);
442: my $realm=&Apache::lonxml::get_param
443: ('realm',$parstack,$safeeval,undef,1);
444: my $role=&Apache::lonxml::get_param
445: ('role',$parstack,$safeeval,undef,1);
446: $realm=~s/\s+//g;
447: $realm=~s/\//\_/g;
448: $realm=~s/^\_//;
449: $realm=~s/\W/\;/g;
450: $role=~s/\s+//g;
451: $role=~s/\//\_/g;
452: $role=~s/\W/\;/g;
453: if ($target eq 'web') {
454: my $args='';
455: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
456: if ($args eq '') {
457: &Apache::lonxml::get_all_text("/accessrule",$parser);
458: } else {
459: $currentstring = $token->[4];
460: }
461: }
462: if ($target eq 'meta') {
463: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.'</rule>';
464: }
465: return $currentstring;
466: }
467:
468: sub end_accessrule {
469: my ($target,$token,$tagstack,$parstack,$parser) = @_;
470: my $currentstring = '';
471: if ($target eq 'web') {
472: my $args='';
473: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
474: if ($args ne '') {
475: $currentstring = $token->[4];
476: }
477: }
478: return $currentstring;
479: }
480:
481: #-- <body> tag (end tag required)
482: sub start_body {
483: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
484: my $currentstring = '';
485: if ($target eq 'web') {
486: if ($Apache::lonhomework::parsing_a_problem) {
487: &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
488: return '';
489: }
490: if (!$Apache::lonxml::registered &&
491: $ENV{'request.state'} eq 'published') {
492: $currentstring.='<head>'.
493: &Apache::lonmenu::registerurl(undef,$target).'</head>';
494: }
495: # Accessibility
496: if ($ENV{'browser.imagesuppress'} eq 'on') {
497: delete($token->[2]->{'background'});
498: }
499: if ($ENV{'browser.fontenhance'} eq 'on') {
500: my $style='';
501: foreach my $key (keys(%{$token->[2]})) {
502: if ($key =~ /^style$/i) {
503: $style.=$token->[2]->{$key}.';';
504: delete($token->[2]->{$key});
505: }
506: }
507: $token->[2]->{'style'}=$style.'; font-size: x-large;';
508: }
509: if ($ENV{'browser.blackwhite'} eq 'on') {
510: delete($token->[2]->{'font'});
511: delete($token->[2]->{'link'});
512: delete($token->[2]->{'alink'});
513: delete($token->[2]->{'vlink'});
514: delete($token->[2]->{'bgcolor'});
515: delete($token->[2]->{'background'});
516: }
517: # Overload loads
518: my $onLoad='';
519: foreach my $key (keys(%{$token->[2]})) {
520: if ($key =~ /^onload$/i) {
521: $onLoad.=$token->[2]->{$key}.';';
522: delete($token->[2]->{$key});
523: }
524: }
525: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
526: my $onUnload='';
527: foreach my $key (keys(%{$token->[2]})) {
528: if ($key =~ /^onunload$/i) {
529: $onUnload.=$token->[2]->{$key}.';';
530: delete($token->[2]->{$key});
531: }
532: }
533: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
534: ';'.$onUnload;
535:
536: $currentstring .= '<'.$token->[1];
537: foreach (keys %{$token->[2]}) {
538: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
539: }
540: $currentstring.='>';
541: if ($ENV{'request.state'} ne 'published') {
542: $currentstring.=(<<EDITBUTTON);
543: <form method="post">
544: <input type="submit" name="editmode" value="Edit" />
545: </form>
546: EDITBUTTON
547: } else {
548: $currentstring.=&Apache::lonmenu::menubuttons(undef,$target,1);
549: }
550: } elsif ($target eq 'tex') {
551: $currentstring = '\begin{document}';
552: }
553: return $currentstring;
554: }
555:
556: sub end_body {
557: my ($target,$token) = @_;
558: my $currentstring = '';
559: if ($target eq 'web') {
560: $currentstring = $token->[2];
561: } elsif ($target eq 'tex') {
562: $currentstring = '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';
563: }
564: return $currentstring;
565: }
566:
567: #-- <center> tag (end tag required)
568: sub start_center {
569: my ($target,$token) = @_;
570: my $currentstring = '';
571: if ($target eq 'web') {
572: $currentstring = $token->[4];
573: } elsif ($target eq 'tex') {
574: $currentstring = '\begin{center}';
575: }
576: return $currentstring;
577: }
578:
579: sub end_center {
580: my ($target,$token) = @_;
581: my $currentstring = '';
582: if ($target eq 'web') {
583: $currentstring = $token->[2];
584: } elsif ($target eq 'tex') {
585: $currentstring = '\end{center}';
586: }
587: return $currentstring;
588: }
589:
590: #-- <b> tag (end tag required)
591: sub start_b {
592: my ($target,$token) = @_;
593: my $currentstring = '';
594: if ($target eq 'web') {
595: $currentstring = $token->[4];
596: } elsif ($target eq 'tex') {
597: $currentstring = '\textbf{';
598: }
599: return $currentstring;
600: }
601:
602: sub end_b {
603: my ($target,$token) = @_;
604: my $currentstring = '';
605: if ($target eq 'web') {
606: $currentstring = $token->[2];
607: } elsif ($target eq 'tex') {
608: $currentstring = '}';
609: }
610: return $currentstring;
611: }
612:
613: #-- <strong> tag (end tag required)
614: sub start_strong {
615: my ($target,$token) = @_;
616: my $currentstring = '';
617: if ($target eq 'web') {
618: $currentstring = $token->[4];
619: } elsif ($target eq 'tex') {
620: $currentstring = '\textbf{';
621: }
622: return $currentstring;
623: }
624:
625: sub end_strong {
626: my ($target,$token) = @_;
627: my $currentstring = '';
628: if ($target eq 'web') {
629:
630: $currentstring = $token->[2];
631: } elsif ($target eq 'tex') {
632: $currentstring = '}';
633: }
634: return $currentstring;
635: }
636:
637: #-- <h1> tag (end tag required)
638: sub start_h1 {
639: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
640: my $currentstring = '';
641: if ($target eq 'web') {
642: $currentstring .= $token->[4];
643: } elsif ($target eq 'tex') {
644: my $pre;
645: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
646: if (($align eq 'center') || (not defined $align)) {
647: $pre='\begin{center}';
648: } elsif ($align eq 'left') {
649: $pre='\rlap{';
650: } elsif ($align eq 'right') {
651: $pre=' \hfill \llap{';
652: }
653: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
654: if (not defined $TeXsize) {$TeXsize="large";}
655: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
656: } elsif ($target eq 'meta') {
657: $currentstring='<subject>';
658: &start_output();
659: }
660: return $currentstring;
661: }
662:
663: sub end_h1 {
664: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
665: my $currentstring = '';
666: if ($target eq 'web') {
667: $currentstring .= $token->[2];
668: } elsif ($target eq 'tex') {
669: my $post;
670: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
671: if (($align eq 'center') || (not defined $align)) {
672: $post='\end{center}';
673: } elsif ($align eq 'left') {
674: $post='} \hfill'.'\vskip 0 mm ';
675: } elsif ($align eq 'right') {
676: $post='}'.'\vskip 0 mm ';
677: }
678: $currentstring .= '}}'.$post;
679: } elsif ($target eq 'meta') {
680: &end_output();
681: $currentstring='</subject>';
682: }
683: return $currentstring;
684: }
685:
686: #-- <h2> tag
687: sub start_h2 {
688: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
689: my $currentstring = '';
690: if ($target eq 'web') {
691: $currentstring .= $token->[4];
692: } elsif ($target eq 'tex') {
693: my $pre;
694: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
695: if (($align eq 'center') || (not defined $align)) {
696: $pre='\begin{center}';
697: } elsif ($align eq 'left') {
698: $pre='\rlap{';
699: } elsif ($align eq 'right') {
700: $pre=' \hfill \llap{';
701: }
702: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
703: if (not defined $TeXsize) {$TeXsize="large";}
704: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
705: }
706: return $currentstring;
707: }
708:
709: sub end_h2 {
710: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
711: my $currentstring = '';
712: if ($target eq 'web') {
713: $currentstring .= $token->[2];
714: } elsif ($target eq 'tex') {
715: my $post;
716: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
717: if (($align eq 'center') || (not defined $align)) {
718: $post='\end{center}';
719: } elsif ($align eq 'left') {
720: $post='} \hfill'.'\vskip 0 mm ';
721: } elsif ($align eq 'right') {
722: $post='}'.'\vskip 0 mm ';
723: }
724: $currentstring .= '}}'.$post;
725: }
726: return $currentstring;
727: }
728:
729: #-- <h3> tag
730: sub start_h3 {
731: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
732: my $currentstring = '';
733: if ($target eq 'web') {
734: $currentstring .= $token->[4];
735: } elsif ($target eq 'tex') {
736: my $pre;
737: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
738: if (($align eq 'center') || (not defined $align)) {
739: $pre='\begin{center}';
740: } elsif ($align eq 'left') {
741: $pre='\rlap{';
742: } elsif ($align eq 'right') {
743: $pre=' \hfill \llap{';
744: }
745: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
746: if (not defined $TeXsize) {$TeXsize="large";}
747: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
748: }
749: return $currentstring;
750: }
751:
752: sub end_h3 {
753: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
754: my $currentstring = '';
755: if ($target eq 'web') {
756: $currentstring .= $token->[2];
757: } elsif ($target eq 'tex') {
758: my $post;
759: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
760: if (($align eq 'center') || (not defined $align)) {
761: $post='\end{center}';
762: } elsif ($align eq 'left') {
763: $post='} \hfill'.'\vskip 0 mm ';
764: } elsif ($align eq 'right') {
765: $post='}'.'\vskip 0 mm ';
766: }
767: $currentstring .= '}}'.$post;
768: }
769: return $currentstring;
770: }
771:
772: #-- <h4> tag
773: sub start_h4 {
774: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
775: my $currentstring = '';
776: if ($target eq 'web') {
777: $currentstring .= $token->[4];
778: } elsif ($target eq 'tex') {
779: my $pre;
780: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
781: if (($align eq 'center') || (not defined $align)) {
782: $pre='\begin{center}';
783: } elsif ($align eq 'left') {
784: $pre='\rlap{';
785: } elsif ($align eq 'right') {
786: $pre=' \hfill \llap{';
787: }
788: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
789: if (not defined $TeXsize) {$TeXsize="large";}
790: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
791: }
792: return $currentstring;
793: }
794:
795: sub end_h4 {
796: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
797: my $currentstring = '';
798: if ($target eq 'web') {
799: $currentstring .= $token->[2];
800: } elsif ($target eq 'tex') {
801: my $post;
802: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
803: if (($align eq 'center') || (not defined $align)) {
804: $post='\end{center}';
805: } elsif ($align eq 'left') {
806: $post='} \hfill'.'\vskip 0 mm ';
807: } elsif ($align eq 'right') {
808: $post='}'.'\vskip 0 mm ';
809: }
810: $currentstring .= '}}'.$post;
811: }
812: return $currentstring;
813: }
814:
815: #-- <h5> tag
816: sub start_h5 {
817: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
818: my $currentstring = '';
819: if ($target eq 'web') {
820: $currentstring .= $token->[4];
821: } elsif ($target eq 'tex') {
822: my $pre;
823: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
824: if (($align eq 'center') || (not defined $align)) {
825: $pre='\begin{center}';
826: } elsif ($align eq 'left') {
827: $pre='\rlap{';
828: } elsif ($align eq 'right') {
829: $pre=' \hfill \llap{';
830: }
831: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
832: if (not defined $TeXsize) {$TeXsize="large";}
833: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
834: }
835: return $currentstring;
836: }
837:
838: sub end_h5 {
839: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
840: my $currentstring = '';
841: if ($target eq 'web') {
842: $currentstring .= $token->[2];
843: } elsif ($target eq 'tex') {
844: my $post;
845: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
846: if (($align eq 'center') || (not defined $align)) {
847: $post='\end{center}';
848: } elsif ($align eq 'left') {
849: $post='} \hfill'.'\vskip 0 mm ';
850: } elsif ($align eq 'right') {
851: $post='}'.'\vskip 0 mm ';
852: }
853: $currentstring .= '}}'.$post;
854: }
855: return $currentstring;
856: }
857:
858: #-- <h6> tag
859: sub start_h6 {
860: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
861: my $currentstring = '';
862: if ($target eq 'web') {
863: $currentstring .= $token->[4];
864: } elsif ($target eq 'tex') {
865: my $pre;
866: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
867: if (($align eq 'center') || (not defined $align)) {
868: $pre='\begin{center}';
869: } elsif ($align eq 'left') {
870: $pre='\rlap{';
871: } elsif ($align eq 'right') {
872: $pre=' \hfill \llap{';
873: }
874: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
875: if (not defined $TeXsize) {$TeXsize="large";}
876: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
877: }
878: return $currentstring;
879: }
880:
881: sub end_h6 {
882: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
883: my $currentstring = '';
884: if ($target eq 'web') {
885: $currentstring .= $token->[2];
886: } elsif ($target eq 'tex') {
887: my $post;
888: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
889: if (($align eq 'center') || (not defined $align)) {
890: $post='\end{center}';
891: } elsif ($align eq 'left') {
892: $post='} \hfill'.'\vskip 0 mm ';
893: } elsif ($align eq 'right') {
894: $post='}'.'\vskip 0 mm ';
895: }
896: $currentstring .= '}}'.$post;
897: }
898: return $currentstring;
899: }
900:
901: #--- <cite> tag (end tag required)
902: sub start_cite {
903: my ($target,$token) = @_;
904: my $currentstring = '';
905: if ($target eq 'web') {
906: $currentstring .= $token->[4];
907: } elsif ($target eq 'tex') {
908: $currentstring .= '\textit{';
909: }
910: return $currentstring;
911: }
912:
913: sub end_cite {
914: my ($target,$token) = @_;
915: my $currentstring = '';
916: if ($target eq 'web') {
917: $currentstring .= $token->[2];
918: } elsif ($target eq 'tex') {
919: $currentstring .= '}';
920: }
921: return $currentstring;
922: }
923:
924: #-- <i> tag (end tag required)
925: sub start_i {
926: my ($target,$token) = @_;
927: my $currentstring = '';
928: if ($target eq 'web') {
929: $currentstring .= $token->[4];
930: } elsif ($target eq 'tex') {
931: $currentstring .= '\textit{';
932: }
933: return $currentstring;
934: }
935:
936: sub end_i {
937: my ($target,$token) = @_;
938: my $currentstring = '';
939: if ($target eq 'web') {
940: $currentstring .= $token->[2];
941: } elsif ($target eq 'tex') {
942: $currentstring .= '}';
943: }
944: return $currentstring;
945: }
946:
947: #-- <address> tag (end tag required)
948: sub start_address {
949: my ($target,$token) = @_;
950: my $currentstring = '';
951: if ($target eq 'web') {
952: $currentstring .= $token->[4];
953: } elsif ($target eq 'tex') {
954: $currentstring .= '\textit{';
955: }
956: return $currentstring;
957: }
958:
959: sub end_address {
960: my ($target,$token) = @_;
961: my $currentstring = '';
962: if ($target eq 'web') {
963: $currentstring .= $token->[2];
964: } elsif ($target eq 'tex') {
965: $currentstring .= '}';
966: }
967: return $currentstring;
968: }
969:
970: #-- <dfn> tag (end tag required)
971: sub start_dfn {
972: my ($target,$token) = @_;
973: my $currentstring = '';
974: if ($target eq 'web') {
975: $currentstring .= $token->[4];
976: } elsif ($target eq 'tex') {
977: $currentstring .= '\textit{';
978: }
979: return $currentstring;
980: }
981:
982: sub end_dfn {
983: my ($target,$token) = @_;
984: my $currentstring = '';
985: if ($target eq 'web') {
986: $currentstring .= $token->[2];
987: } elsif ($target eq 'tex') {
988: $currentstring .= '}';
989: }
990: return $currentstring;
991: }
992:
993: #-- <tt> tag (end tag required)
994: sub start_tt {
995: my ($target,$token) = @_;
996: my $currentstring = '';
997: if ($target eq 'web') {
998: $currentstring .= $token->[4];
999: } elsif ($target eq 'tex') {
1000: $currentstring .= '\texttt{';
1001: }
1002: return $currentstring;
1003: }
1004:
1005: sub end_tt {
1006: my ($target,$token) = @_;
1007: my $currentstring = '';
1008: if ($target eq 'web') {
1009: $currentstring .= $token->[2];
1010: } elsif ($target eq 'tex') {
1011: $currentstring .= '}';
1012: }
1013: return $currentstring;
1014: }
1015:
1016: #-- <kbd> tag (end tag required)
1017: sub start_kbd {
1018: my ($target,$token) = @_;
1019: my $currentstring = '';
1020: if ($target eq 'web') {
1021: $currentstring .= $token->[4];
1022: } elsif ($target eq 'tex') {
1023: $currentstring .= '\texttt{';
1024: }
1025: return $currentstring;
1026: }
1027:
1028: sub end_kbd {
1029: my ($target,$token) = @_;
1030: my $currentstring = '';
1031: if ($target eq 'web') {
1032: $currentstring .= $token->[2];
1033: } elsif ($target eq 'tex') {
1034: $currentstring .= '}';
1035: }
1036: return $currentstring;
1037: }
1038:
1039: #-- <code> tag (end tag required)
1040: sub start_code {
1041: my ($target,$token) = @_;
1042: my $currentstring = '';
1043: if ($target eq 'web') {
1044: $currentstring .= $token->[4];
1045: } elsif ($target eq 'tex') {
1046: $currentstring .= '\texttt{';
1047: }
1048: return $currentstring;
1049: }
1050:
1051: sub end_code {
1052: my ($target,$token) = @_;
1053: my $currentstring = '';
1054: if ($target eq 'web') {
1055: $currentstring .= $token->[2];
1056: } elsif ($target eq 'tex') {
1057: $currentstring .= '}';
1058: }
1059: return $currentstring;
1060: }
1061:
1062: #-- <em> tag (end tag required)
1063: sub start_em {
1064: my ($target,$token) = @_;
1065: my $currentstring = '';
1066: if ($target eq 'web') {
1067: $currentstring .= $token->[4];
1068: } elsif ($target eq 'tex') {
1069: $currentstring .= '\emph{';
1070: }
1071: return $currentstring;
1072: }
1073:
1074: sub end_em {
1075: my ($target,$token) = @_;
1076: my $currentstring = '';
1077: if ($target eq 'web') {
1078: $currentstring .= $token->[2];
1079: } elsif ($target eq 'tex') {
1080: $currentstring .= '}';
1081: }
1082: return $currentstring;
1083: }
1084:
1085: #-- <q> tag (end tag required)
1086: sub start_q {
1087: my ($target,$token) = @_;
1088: my $currentstring = '';
1089: if ($target eq 'web') {
1090: $currentstring .= $token->[4];
1091: } elsif ($target eq 'tex') {
1092: $currentstring .= '\emph{';
1093: }
1094: return $currentstring;
1095: }
1096:
1097: sub end_q {
1098: my ($target,$token) = @_;
1099: my $currentstring = '';
1100: if ($target eq 'web') {
1101: $currentstring .= $token->[2];
1102: } elsif ($target eq 'tex') {
1103: $currentstring .= '}';
1104: }
1105: return $currentstring;
1106: }
1107:
1108: #-- <p> tag (end tag optional)
1109: sub start_p {
1110: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1111: my $currentstring = '';
1112: if ($target eq 'web') {
1113: $currentstring .= $token->[4];
1114: } elsif ($target eq 'tex') {
1115: my $signal=1;
1116: foreach my $tag (@$tagstack) {if (lc($tag) eq 'b') {$signal=0;}}
1117: if ($signal) {$currentstring .= '\par ';}
1118: }
1119: return $currentstring;
1120: }
1121:
1122: sub end_p {
1123: my ($target,$token) = @_;
1124: my $currentstring = '';
1125: if ($target eq 'web') {
1126: $currentstring .= $token->[2];
1127: }
1128: return $currentstring;
1129: }
1130:
1131: #-- <br> tag (end tag forbidden)
1132: sub start_br {
1133: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1134: my $currentstring = '';
1135: if ($target eq 'web') {
1136: $currentstring .= $token->[4];
1137: } elsif ($target eq 'tex') {
1138: if ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') {
1139: $currentstring .= '\vskip 0.2 mm ';
1140: }
1141: }
1142: return $currentstring;
1143: }
1144:
1145: sub end_br {
1146: my ($target,$token) = @_;
1147: my $currentstring = '';
1148: if ($target eq 'web') {
1149: $currentstring .= $token->[2];
1150: }
1151: return $currentstring;
1152: }
1153:
1154: #-- <big> tag (end tag required)
1155: sub start_big {
1156: my ($target,$token) = @_;
1157: my $currentstring = '';
1158: if ($target eq 'web') {
1159: $currentstring .= $token->[4];
1160: } elsif ($target eq 'tex') {
1161: $currentstring .= '{\large ';
1162: }
1163: return $currentstring;
1164: }
1165:
1166: sub end_big {
1167: my ($target,$token) = @_;
1168: my $currentstring = '';
1169: if ($target eq 'web') {
1170: $currentstring .= $token->[2];
1171: } elsif ($target eq 'tex') {
1172: $currentstring .= '}';
1173: }
1174: return $currentstring;
1175: }
1176:
1177: #-- <small> tag (end tag required)
1178: sub start_small {
1179: my ($target,$token) = @_;
1180: my $currentstring = '';
1181: if ($target eq 'web') {
1182: $currentstring .= $token->[4];
1183: } elsif ($target eq 'tex') {
1184: $currentstring .= '{\footnotesize ';
1185: }
1186: return $currentstring;
1187: }
1188:
1189: sub end_small {
1190: my ($target,$token) = @_;
1191: my $currentstring = '';
1192: if ($target eq 'web') {
1193: $currentstring .= $token->[2];
1194: } elsif ($target eq 'tex') {
1195: $currentstring .= '}';
1196: }
1197: return $currentstring;
1198: }
1199:
1200: #-- <basefont> tag (end tag forbidden)
1201: sub start_basefont {
1202: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1203: my $currentstring = '';
1204: if ($target eq 'web') {
1205: $currentstring = $token->[4];
1206: } elsif ($target eq 'tex') {
1207: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1208: if (defined $basesize) {
1209: $currentstring = '{\\'.$basesize.' ';
1210: }
1211: }
1212: return $currentstring;
1213: }
1214:
1215: sub end_basefont {
1216: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1217: my $currentstring = '';
1218: if ($target eq 'web') {
1219: $currentstring = $token->[4];
1220: } elsif ($target eq 'tex') {
1221: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1222: if (defined $basesize) {
1223: $currentstring = '}';
1224: }
1225: }
1226: return $currentstring;
1227: }
1228:
1229: #-- <font> tag (end tag required)
1230: sub start_font {
1231: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1232: my $currentstring = '';
1233: if ($target eq 'web') {
1234: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1235: if ($face=~/symbol/i) {
1236: $Apache::lonxml::prevent_entity_encode++;
1237: } else {
1238: if (($ENV{'browser.fontenhance'} eq 'on') ||
1239: ($ENV{'browser.blackwhite'} eq 'on')) { return ''; }
1240: }
1241: $currentstring = $token->[4];
1242: } elsif ($target eq 'tex') {
1243: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1244: if (defined $fontsize) {
1245: $currentstring = '{\\'.$fontsize.' ';
1246: }
1247: }
1248: return $currentstring;
1249: }
1250:
1251: sub end_font {
1252: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1253: my $currentstring = '';
1254: if ($target eq 'web') {
1255: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1256: if ($face=~/symbol/i) {$Apache::lonxml::prevent_entity_encode--;}
1257: $currentstring = $token->[2];
1258: } elsif ($target eq 'tex') {
1259: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1260: if (defined $fontsize) {
1261: $currentstring = '}';
1262: }
1263: }
1264: return $currentstring;
1265: }
1266:
1267: #-- <strike> tag (end tag required)
1268: sub start_strike {
1269: my ($target,$token) = @_;
1270: my $currentstring = '';
1271: if ($target eq 'web') {
1272: $currentstring .= $token->[4];
1273: } elsif ($target eq 'tex') {
1274: &Apache::lonxml::startredirection();
1275: }
1276: return $currentstring;
1277: }
1278:
1279: sub end_strike {
1280: my ($target,$token) = @_;
1281: my $currentstring = '';
1282: if ($target eq 'web') {
1283: $currentstring .= $token->[2];
1284: } elsif ($target eq 'tex') {
1285: $currentstring=&Apache::lonxml::endredirection();
1286: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1287: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1288: $currentstring=~s/(\S)\s*$/$1\}/;
1289: }
1290: return $currentstring;
1291: }
1292:
1293: #-- <s> tag (end tag required)
1294: sub start_s {
1295: my ($target,$token) = @_;
1296: my $currentstring = '';
1297: if ($target eq 'web') {
1298: $currentstring .= $token->[4];
1299: } elsif ($target eq 'tex') {
1300: &Apache::lonxml::startredirection();
1301: }
1302: return $currentstring;
1303: }
1304:
1305: sub end_s {
1306: my ($target,$token) = @_;
1307: my $currentstring = '';
1308: if ($target eq 'web') {
1309: $currentstring .= $token->[2];
1310: } elsif ($target eq 'tex') {
1311: $currentstring=&Apache::lonxml::endredirection();
1312: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1313: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1314: $currentstring=~s/(\S)\s*$/$1\}/;
1315: }
1316: return $currentstring;
1317: }
1318:
1319: #-- <sub> tag (end tag required)
1320: sub start_sub {
1321: my ($target,$token) = @_;
1322: my $currentstring = '';
1323: if ($target eq 'web') {
1324: $currentstring .= $token->[4];
1325: } elsif ($target eq 'tex') {
1326: $currentstring .= "\$_{ ";
1327: }
1328: return $currentstring;
1329: }
1330:
1331: sub end_sub {
1332: my ($target,$token) = @_;
1333: my $currentstring = '';
1334: if ($target eq 'web') {
1335: $currentstring .= $token->[2];
1336: } elsif ($target eq 'tex') {
1337: $currentstring .= " }\$";
1338: }
1339: return $currentstring;
1340: }
1341:
1342: #-- <sup> tag (end tag required)
1343: sub start_sup {
1344: my ($target,$token) = @_;
1345: my $currentstring = '';
1346: if ($target eq 'web') {
1347: $currentstring .= $token->[4];
1348: } elsif ($target eq 'tex') {
1349: $currentstring .= "\$^{ ";
1350: }
1351: return $currentstring;
1352: }
1353:
1354: sub end_sup {
1355: my ($target,$token) = @_;
1356: my $currentstring = '';
1357: if ($target eq 'web') {
1358: $currentstring .= $token->[2];
1359: } elsif ($target eq 'tex') {
1360: $currentstring .= " }\$";
1361: }
1362: return $currentstring;
1363: }
1364:
1365: #-- <hr> tag (end tag forbidden)
1366: sub start_hr {
1367: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1368: my $currentstring = '';
1369: if ($target eq 'web') {
1370: $currentstring .= $token->[4];
1371: } elsif ($target eq 'tex') {
1372: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1373: if (defined $LaTeXwidth) {
1374: if ($LaTeXwidth=~/^%/) {
1375: substr($LaTeXwidth,0,1)='';
1376: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1377: }
1378: } else {
1379: $LaTeXwidth ='0.9\textwidth';
1380: }
1381: my ($pre,$post);
1382: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1383: if (($align eq 'center') || (not defined $align)) {
1384: $pre=''; $post='';
1385: } elsif ($align eq 'left') {
1386: $pre='\rlap{'; $post='} \hfill';
1387: } elsif ($align eq 'right') {
1388: $pre=' \hfill \llap{'; $post='}';
1389: }
1390: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1391: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1392: }
1393: return $currentstring;
1394: }
1395:
1396: sub end_hr {
1397: my ($target,$token) = @_;
1398: my $currentstring = '';
1399: if ($target eq 'web') {
1400: $currentstring .= $token->[2];
1401: }
1402: return $currentstring;
1403: }
1404:
1405: #-- <div> tag (end tag required)
1406: sub start_div {
1407: my ($target,$token) = @_;
1408: my $currentstring = '';
1409: if ($target eq 'web') {
1410: $currentstring .= $token->[4];
1411: }
1412: return $currentstring;
1413: }
1414:
1415: sub end_div {
1416: my ($target,$token) = @_;
1417: my $currentstring = '';
1418: if ($target eq 'web') {
1419: $currentstring .= $token->[2];
1420: }
1421: return $currentstring;
1422: }
1423:
1424: #-- <a> tag (end tag required)
1425: sub start_a {
1426: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1427: my $currentstring = '';
1428: if ($target eq 'web') {
1429: $currentstring .= $token->[4];
1430: } elsif ($target eq 'tex') {
1431: my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1432: my $b=&Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1433: if ($a=~/\S/) {
1434: $a=~s/([^\\])%/$1\\\%/g;
1435: $currentstring .= '\ref{URI: '.$a.'}';
1436: } elsif ($b=~/\S/) {
1437: $currentstring .= '\ref{Anchor: '.$b.'}';
1438: } else {
1439: $currentstring.='';
1440: }
1441: }
1442: return $currentstring;
1443: }
1444:
1445: sub end_a {
1446: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1447: my $currentstring = '';
1448: if ($target eq 'web') {
1449: $currentstring .= $token->[2];
1450: }
1451: return $currentstring;
1452: }
1453:
1454: #-- <li> tag (end tag optional)
1455: sub start_li {
1456: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1457: my $currentstring = '';
1458: if ($target eq 'web') {
1459: $currentstring = $token->[4];
1460: } elsif ($target eq 'tex') {
1461: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,1);
1462: if ($type=~/circle/) {
1463: $currentstring .= ' \item[o] ';
1464: } elsif ($type=~/square/) {
1465: $currentstring .= ' \item[$\Box$] ';
1466: } elsif ($type ne '') {
1467: $currentstring .= ' \item['.$type.'] ';
1468: } else {
1469: $currentstring .= ' \item ';
1470: }
1471: }
1472: return $currentstring;
1473: }
1474:
1475: sub end_li {
1476: my ($target,$token) = @_;
1477: my $currentstring = '';
1478: if ($target eq 'web') {
1479: $currentstring = $token->[2];
1480: }
1481: return $currentstring;
1482: }
1483:
1484: #-- <u> tag (end tag required)
1485: sub start_u {
1486: my ($target,$token) = @_;
1487: my $currentstring = '';
1488: if ($target eq 'web') {
1489: $currentstring .= $token->[4];
1490: } elsif ($target eq 'tex') {
1491: &Apache::lonxml::startredirection();
1492: }
1493: return $currentstring;
1494: }
1495:
1496: sub end_u {
1497: my ($target,$token) = @_;
1498: my $currentstring = '';
1499: if ($target eq 'web') {
1500: $currentstring .= $token->[2];
1501: } elsif ($target eq 'tex') {
1502: $currentstring=&Apache::lonxml::endredirection();
1503: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1504: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1505: $currentstring=~s/(\S)\s*$/$1\}/;
1506: }
1507: return $currentstring;
1508: }
1509:
1510: #-- <ul> tag (end tag required)
1511: sub start_ul {
1512: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1513: my $currentstring = '';
1514: if ($target eq 'web') {
1515: $currentstring = $token->[4];
1516: } elsif ($target eq 'tex') {
1517: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1518: if ($TeXtype eq 'disc') {
1519: $currentstring .= ' \renewcommand{\labelitemi}{$\bullet$}
1520: \renewcommand{\labelitemii}{$\bullet$}
1521: \renewcommand{\labelitemiii}{$\bullet$}
1522: \renewcommand{\labelitemiv}{$\bullet$}';
1523: } elsif ($TeXtype eq 'circle') {
1524: $currentstring .= ' \renewcommand{\labelitemi}{$\circ$}
1525: \renewcommand{\labelitemii}{$\circ$}
1526: \renewcommand{\labelitemiii}{$\circ$}
1527: \renewcommand{\labelitemiv}{$\circ$}';
1528: } elsif ($TeXtype eq 'square') {
1529: $currentstring .= ' \renewcommand{\labelitemi}{$\diamond$}
1530: \renewcommand{\labelitemii}{$\diamond$}
1531: \renewcommand{\labelitemiii}{$\diamond$}
1532: \renewcommand{\labelitemiv}{$\diamond$}';
1533: }
1534: $currentstring .= '\begin{itemize}';
1535: }
1536: return $currentstring;
1537: }
1538:
1539: sub end_ul {
1540: my ($target,$token) = @_;
1541: my $currentstring = '';
1542: if ($target eq 'web') {
1543: $currentstring = $token->[2];
1544: } elsif ($target eq 'tex') {
1545: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}
1546: \renewcommand{\labelitemii}{$\bullet$}
1547: \renewcommand{\labelitemiii}{$\bullet$}
1548: \renewcommand{\labelitemiv}{$\bullet$}';
1549: }
1550: return $currentstring;
1551: }
1552:
1553: #-- <menu> tag (end tag required)
1554: sub start_menu {
1555: my ($target,$token) = @_;
1556: my $currentstring = '';
1557: if ($target eq 'web') {
1558: $currentstring = $token->[4];
1559: } elsif ($target eq 'tex') {
1560: $currentstring = " \\begin{itemize} ";
1561: }
1562: return $currentstring;
1563: }
1564:
1565: sub end_menu {
1566: my ($target,$token) = @_;
1567: my $currentstring = '';
1568: if ($target eq 'web') {
1569: $currentstring = $token->[2];
1570: } elsif ($target eq 'tex') {
1571: $currentstring = " \\end{itemize}";
1572: }
1573: return $currentstring;
1574: }
1575:
1576: #-- <dir> tag (end tag required)
1577: sub start_dir {
1578: my ($target,$token) = @_;
1579: my $currentstring = '';
1580: if ($target eq 'web') {
1581: $currentstring = $token->[4];
1582: } elsif ($target eq 'tex') {
1583: $currentstring = " \\begin{itemize} ";
1584: }
1585: return $currentstring;
1586: }
1587:
1588: sub end_dir {
1589: my ($target,$token) = @_;
1590: my $currentstring = '';
1591: if ($target eq 'web') {
1592: $currentstring = $token->[2];
1593: } elsif ($target eq 'tex') {
1594: $currentstring = " \\end{itemize}";
1595: }
1596: return $currentstring;
1597: }
1598:
1599: #-- <ol> tag (end tag required)
1600: sub start_ol {
1601: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1602: my $currentstring = '';
1603: if ($target eq 'web') {
1604: $currentstring = $token->[4];
1605: } elsif ($target eq 'tex') {
1606: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1607: if ($type eq '1') {
1608: $currentstring .= ' \renewcommand{\labelenumi}{\arabic{enumi}.}
1609: \renewcommand{\labelenumii}{\arabic{enumii}.}
1610: \renewcommand{\labelenumiii}{\arabic{enumiii}.}
1611: \renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1612: } elsif ($type eq 'A') {
1613: $currentstring .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}
1614: \renewcommand{\labelenumii}{\Alph{enumii}.}
1615: \renewcommand{\labelenumiii}{\Alph{enumiii}.}
1616: \renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1617: } elsif ($type eq 'a') {
1618: $currentstring .= ' \renewcommand{\labelenumi}{\alph{enumi}.}
1619: \renewcommand{\labelenumii}{\alph{enumii}.}
1620: \renewcommand{\labelenumiii}{\alph{enumiii}.}
1621: \renewcommand{\labelenumiv}{\alph{enumiv}.} ';
1622: } elsif ($type eq 'i') {
1623: $currentstring .= ' \renewcommand{\labelenumi}{\roman{enumi}.}
1624: \renewcommand{\labelenumii}{\roman{enumii}.}
1625: \renewcommand{\labelenumiii}{\roman{enumiii}.}
1626: \renewcommand{\labelenumiv}{\roman{enumiv}.} ';
1627: } elsif ($type eq 'I') {
1628: $currentstring .= ' \renewcommand{\labelenumi}{\Roman{enumi}.}
1629: \renewcommand{\labelenumii}{\Roman{enumii}.}
1630: \renewcommand{\labelenumiii}{\Roman{enumiii}.}
1631: \renewcommand{\labelenumiv}{\Roman{enumiv}.} ';
1632: }
1633: $currentstring .= '\begin{enumerate}';
1634: }
1635: return $currentstring;
1636: }
1637:
1638: sub end_ol {
1639: my ($target,$token) = @_;
1640: my $currentstring = '';
1641: if ($target eq 'web') {
1642: $currentstring = $token->[2];
1643: } elsif ($target eq 'tex') {
1644: $currentstring = '\end{enumerate} \renewcommand{\labelenumi}{\arabic{enumi}.}
1645: \renewcommand{\labelenumii}{\arabic{enumii}.}
1646: \renewcommand{\labelenumiii}{\arabic{enumiii}.}
1647: \renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1648: }
1649: return $currentstring;
1650: }
1651:
1652: #-- <dl> tag (end tag required)
1653: sub start_dl {
1654: my ($target,$token) = @_;
1655: my $currentstring = '';
1656: if ($target eq 'web') {
1657: $currentstring = $token->[4];
1658: } elsif ($target eq 'tex') {
1659: $currentstring = '\begin{description}';
1660: @Apache::londefdef::description=();
1661: $Apache::londefdef::DD_redirection=0;
1662: $Apache::londefdef::DT_redirection=0;
1663: }
1664: return $currentstring;
1665: }
1666:
1667: sub end_dl {
1668: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1669: my $currentstring = '';
1670: if ($target eq 'web') {
1671: $currentstring = $token->[2];
1672: } elsif ($target eq 'tex') {
1673: if ($Apache::londefdef::DT_redirection) {
1674: my $data=&item_cleanup;
1675: push @Apache::londefdef::description,'\item['.$data.']';
1676: $Apache::londefdef::DT_redirection=0;
1677: } elsif ($Apache::londefdef::DD_redirection) {
1678: $Apache::londefdef::description[-1].=&Apache::lonxml::endredirection();
1679: }
1680: foreach my $element (@Apache::londefdef::description) {
1681: $currentstring.=' '.$element.' ';
1682: }
1683: @Apache::londefdef::description=();
1684: $currentstring.='\end{description}';
1685: }
1686: return $currentstring;
1687: }
1688:
1689: #-- <dt> tag (end tag optional)
1690: sub start_dt {
1691: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1692: my $currentstring='';
1693: if ($target eq 'web') {
1694: $currentstring = $token->[4];
1695: } elsif ($target eq 'tex') {
1696: if ($Apache::londefdef::DT_redirection) {
1697: my $data=&item_cleanup;
1698: push @Apache::londefdef::description,'\item['.$data.']';
1699: $Apache::londefdef::DT_redirection=0;
1700: } elsif ($Apache::londefdef::DD_redirection) {
1701: $Apache::londefdef::description[-1].=&Apache::lonxml::endredirection();
1702: $Apache::londefdef::DD_redirection=0;
1703: }
1704: &Apache::lonxml::startredirection();
1705: $Apache::londefdef::DT_redirection=1;
1706: }
1707: return $currentstring;
1708: }
1709:
1710: sub end_dt {
1711: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1712: my $currentstring = '';
1713: if ($target eq 'web') {
1714: $currentstring = $token->[2];
1715: } elsif ($target eq 'tex') {
1716: my $data=&item_cleanup;
1717: push @Apache::londefdef::description,'\item['.$data.']';
1718: $Apache::londefdef::DT_redirection=0;
1719: }
1720: return $currentstring;
1721: }
1722:
1723: sub item_cleanup {
1724: my $item=&Apache::lonxml::endredirection();
1725: $item=~s/\\begin{center}//g;
1726: $item=~s/\\end{center}//g;
1727: return $item;
1728: }
1729:
1730: #-- <dd> tag (end tag optional)
1731: sub start_dd {
1732: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1733: my $currentstring = '';
1734: if ($target eq 'web') {
1735: $currentstring = $token->[4];
1736: } elsif ($target eq 'tex') {
1737: if ($Apache::londefdef::DT_redirection) {
1738: my $data=&item_cleanup;
1739: push @Apache::londefdef::description,'\item['.$data.']';
1740: $Apache::londefdef::DT_redirection=0;
1741: }
1742: $Apache::londefdef::DD_redirection=1;
1743: &Apache::lonxml::startredirection();
1744: }
1745: return $currentstring;
1746: }
1747:
1748: sub end_dd {
1749: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1750: my $currentstring = '';
1751: if ($target eq 'web') {
1752: $currentstring = $token->[2];
1753: } elsif ($target eq 'tex') {
1754: $Apache::londefdef::description[-1].=&Apache::lonxml::endredirection();
1755: $Apache::londefdef::DD_redirection=0;
1756: }
1757: return $currentstring;
1758: }
1759:
1760: #-- <table> tag (end tag required)
1761: sub start_table {
1762: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1763: my $textwidth='';
1764: if (not defined @Apache::londefdef::table) {
1765: $textwidth=&recalc($ENV{'form.textwidth'});
1766: $textwidth=~/(\d+\.?\d*)/;
1767: $textwidth=0.95*$1;
1768: } else {
1769: $textwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1770: }
1771: my $currentstring = '';
1772: if ($target eq 'web') {
1773: $currentstring = $token->[4];
1774: } elsif ($target eq 'tex') {
1775: my $aa = {};
1776: push @Apache::londefdef::table, $aa;
1777: $Apache::londefdef::table[-1]{'row_number'} = -1;
1778: #table's width
1779: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1780: if (not defined $TeXwidth) {
1781: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,$safeeval,undef,1);
1782: if ($htmlwidth=~/%/) {
1783: $htmlwidth=~/(\d+)/;
1784: my $value=$1*$textwidth/100;
1785: $Apache::londefdef::table[-1]{'width'}=$value;
1786: } else {
1787: $Apache::londefdef::table[-1]{'width'}=$textwidth;
1788: }
1789: } elsif ($TeXwidth=~/%/) {
1790: $TeXwidth=~/(\d+)/;
1791: my $value=$1*$textwidth/100;
1792: $Apache::londefdef::table[-1]{'width'}=$value;
1793: } else {
1794: $Apache::londefdef::table[-1]{'width'}=$textwidth;
1795: }
1796: #table's border
1797: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval,undef,1);
1798: unless (defined $border) { $border = 0; }
1799: if ($border) {
1800: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
1801: $Apache::londefdef::table[-1]{'vinc'} = '&';
1802: $Apache::londefdef::table[-1]{'vvinc'} = '|';
1803: } else {
1804: $Apache::londefdef::table[-1]{'hinc'} = '';
1805: $Apache::londefdef::table[-1]{'vinc'} = '&';
1806: $Apache::londefdef::table[-1]{'vvinc'} = '';
1807: }
1808: $Apache::londefdef::table[-1]{'output'} = ' \noindent \begin{tabular} ';
1809: $currentstring = '\keephidden{NEW TABLE ENTRY}';
1810: }
1811: return $currentstring;
1812: }
1813:
1814: sub end_table {
1815: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1816: my $currentstring = '';
1817: if ($target eq 'web') {
1818: $currentstring = $token->[2];
1819: } elsif ($target eq 'tex') {
1820: my $inmemory = '';
1821: my $output = '';
1822: #construct header of the table
1823: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
1824: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'counter_columns'};$in++) {
1825: $header_of_table .= $Apache::londefdef::table[-1]{'columns'}[$in].$Apache::londefdef::table[-1]{'vvinc'};
1826: }
1827: $header_of_table .= '}';
1828: #define the length of the table cells
1829: #always starts with TeXwidth (if defined everything else is ignored)
1830: my @length_row_final = split(/,/,$Apache::londefdef::table[-1]{'TeXlengthrow'}[0]);
1831: for (my $in=1;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1832: my @length_row = split(/,/,$Apache::londefdef::table[-1]{'TeXlengthrow'}[$in]);
1833: for (my $jn=0;$jn<=$#length_row;$jn++) {
1834: if ($length_row_final[$jn]<$length_row[$jn]) {$length_row_final[$jn]=$length_row[$jn];}
1835: }
1836: }
1837: #continues trying estimate the width of raw data
1838: my @length_raw_row = split(/,/,$Apache::londefdef::table[-1]{'lengthrow'}[0]);
1839: for (my $in=1;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1840: my @length_row = split(/,/,$Apache::londefdef::table[-1]{'lengthrow'}[$in]);
1841: for (my $jn=0;$jn<=$#length_row;$jn++) {
1842: if ($length_raw_row[$jn]<$length_row[$jn]) {$length_raw_row[$jn]=$length_row[$jn];}
1843: }
1844: }
1845: #comparing of TeXwidth and raw data width
1846: my $available_length=$Apache::londefdef::table[-1]{'width'};
1847: my $needed=0;
1848: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1849: if ($length_row_final[$jn]!=0) {
1850: $available_length=$available_length-$length_row_final[$jn];
1851: $needed++;
1852: }
1853: }
1854: $needed=$#length_row_final-$needed+1;
1855: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1856: if ($length_row_final[$jn]==0) {
1857: if ($length_raw_row[$jn]<$available_length) {
1858: $length_row_final[$jn]=$length_raw_row[$jn];
1859: $available_length=$available_length-$length_raw_row[$jn];
1860: $needed--;
1861: }
1862: }
1863: }
1864: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1865: if ($length_row_final[$jn]==0) {
1866: $length_row_final[$jn]=0.9*$available_length/$needed;
1867: }
1868: }
1869: #fill the table
1870: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1871: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1872: my $substituted=$length_row_final[$jn];
1873: $Apache::londefdef::table[-1]{'rowdata'}[$in]=~s/TOBECHANGEDONNUMBER/$substituted mm/;
1874: }
1875: $output .= $Apache::londefdef::table[-1]{'rowdata'}[$in];
1876: chop $output;
1877: $output .= ' \\\\ ';
1878: }
1879: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$output.$Apache::londefdef::table[-1]{'hinc'}.'\end{tabular}\vskip 0 mm ';
1880: if ($#Apache::londefdef::table > 0) {
1881: my $inmemory = $Apache::londefdef::table[-1]{'output'};
1882: pop @Apache::londefdef::table;
1883: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1884: } else {
1885: $currentstring .= $Apache::londefdef::table[-1]{'output'};
1886: pop @Apache::londefdef::table;
1887: undef @Apache::londefdef::table;
1888: }
1889: }
1890: return $currentstring;
1891: }
1892:
1893: #-- <tr> tag (end tag optional)
1894: sub start_tr {
1895: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1896: my $currentstring = '';
1897: if ($target eq 'web') {
1898: $currentstring = $token->[4];
1899: } elsif ($target eq 'tex') {
1900: $Apache::londefdef::table[-1]{'row_number'}++;
1901: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
1902: if ($alignchar ne '') {
1903: push @ {$Apache::londefdef::table[-1]{'rows'} }, $alignchar;
1904: } else {
1905: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
1906: }
1907: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
1908: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1909: $Apache::londefdef::table[-1]{'TeXlength'} = '';
1910: $Apache::londefdef::table[-1]{'length'} = '';
1911: }
1912: return $currentstring;
1913: }
1914:
1915: sub end_tr {
1916: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1917: my $currentstring = '';
1918: if ($target eq 'web') {
1919: $currentstring = $token->[2];
1920: } elsif ($target eq 'tex') {
1921: if ($Apache::londefdef::TD_redirection) {
1922: &end_td_tex($parstack,$parser,$safeeval);
1923: }
1924: push @{ $Apache::londefdef::table[-1]{'TeXlengthrow'} },$Apache::londefdef::table[-1]{'TeXlength'};
1925: push @{ $Apache::londefdef::table[-1]{'lengthrow'} },$Apache::londefdef::table[-1]{'length'};
1926: }
1927: return $currentstring;
1928: }
1929:
1930: #-- <td> tag (end tag optional)
1931: sub start_td {
1932: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1933: my $currentstring = '';
1934: if ($target eq 'web') {
1935: $currentstring = $token->[4];
1936: } elsif ($target eq 'tex') {
1937: $Apache::londefdef::TD_redirection = 1;
1938: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1939: }
1940: return $currentstring;
1941: }
1942:
1943: sub tag_check {
1944: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1945: my @ar=@$parstack;
1946: for (my $i=$#ar-1;$i>=0;$i--) {
1947: if (lc($$tagstack[$i]) eq $good_tag) {
1948: &start_td_tex($parstack,$parser,$safeeval);
1949: last;
1950: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
1951: splice @ar, $i+1;
1952: &end_td_tex(\@ar,$parser,$safeeval);
1953: &start_td_tex($parstack,$parser,$safeeval);
1954: last;
1955: }
1956: }
1957: return '';
1958: }
1959:
1960: sub start_td_tex {
1961: my ($parstack,$parser,$safeeval) = @_;
1962: my $what_to_push = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
1963: if ($what_to_push eq '') {
1964: $what_to_push = substr($Apache::londefdef::table[-1]{'rows'}[0],0,1);;
1965: }
1966: push @{ $Apache::londefdef::table[-1]{'columns'} }, $what_to_push;
1967: $Apache::londefdef::table[-1]{'counter_columns'}++;
1968: &Apache::lonxml::startredirection();
1969: return '';
1970: }
1971:
1972: sub end_td_tex {
1973: my ($parstack,$parser,$safeeval) = @_;
1974: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
1975: my $data=&Apache::lonxml::endredirection();
1976: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1977: if (defined $TeXwidth) {
1978: my $current_length=&recalc($TeXwidth);
1979: $current_length=~/(\d+)/;
1980: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
1981: $Apache::londefdef::table[-1]{'length'} .= '0,';
1982: } else {
1983: if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
1984: my $current_length=&recalc($1);
1985: $current_length=~/(\d+\.?\d*)/;
1986: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
1987: $Apache::londefdef::table[-1]{'length'} .= '0,';
1988: } else {
1989: $data=~s/^\s+(\S.*)/$1/;
1990: $data=~s/(.*\S)\s+$/$1/;
1991: $data=~s/(\s)+/$1/;
1992: my $current_length=0;
1993: if ($data=~/\\vskip/) {
1994: my $newdata=$data;
1995: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
1996: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
1997: foreach my $elementdata (@newdata) {
1998: $elementdata=~s/^\s+(\S.*)/$1/;
1999: $elementdata=~s/(.*\S)\s+$/$1/;
2000: $elementdata=~s/(\s)+/$1/;
2001: my $lengthnewdata=1.8*length($elementdata);
2002: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
2003: }
2004: } else {
2005: $current_length=1.8*length($data);
2006: }
2007: $Apache::londefdef::table[-1]{'length'} .= $current_length.',';
2008: $Apache::londefdef::table[-1]{'TeXlength'} .= '0,';
2009: }
2010: }
2011: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2012: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2013: }
2014: @{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{TOBECHANGEDONNUMBER}{'.$data.'} '.$Apache::londefdef::table[-1]{'vinc'};
2015: return'';
2016: }
2017:
2018: sub end_td {
2019: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2020: my $currentstring = '';
2021: if ($target eq 'web') {
2022: $currentstring = $token->[2];
2023: } elsif ($target eq 'tex') {
2024: $Apache::londefdef::TD_redirection =0;
2025: &end_td_tex($parstack,$parser,$safeeval);
2026: }
2027: return $currentstring;
2028: }
2029:
2030: #-- <th> tag (end tag optional)
2031: sub start_th {
2032: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2033: my $currentstring = '';
2034: if ($target eq 'web') {
2035: $currentstring = $token->[4];
2036: } elsif ($target eq 'tex') {
2037: my $what_to_push = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2038: if ($what_to_push eq '') {
2039: $what_to_push = substr($Apache::londefdef::table[-1]{'rows'}[0],0,1);;
2040: }
2041: push @{ $Apache::londefdef::table[-1]{'columns'} }, $what_to_push;
2042: $Apache::londefdef::table[-1]{'counter_columns'}++;
2043: &Apache::lonxml::startredirection();
2044: }
2045: return $currentstring;
2046: }
2047:
2048: sub end_th {
2049: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2050: my $currentstring = '';
2051: if ($target eq 'web') {
2052: $currentstring = $token->[2];
2053: } elsif ($target eq 'tex') {
2054: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2055: my $data=&Apache::lonxml::endredirection();
2056: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2057: if (defined $TeXwidth) {
2058: my $current_length=&recalc($TeXwidth);
2059: $current_length=~/(\d+)/;
2060: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
2061: $Apache::londefdef::table[-1]{'length'} .= '0,';
2062: } else {
2063: if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2064: my $current_length=&recalc($1);
2065: $current_length=~/(\d+)/;
2066: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
2067: $Apache::londefdef::table[-1]{'length'} .= '0,';
2068: } else {
2069: $data=~/^\s*(\S.*)/;
2070: $data=$1;
2071: $data=~/(.*\S)\s*$/;
2072: $data=$1;
2073: my $current_length=2*length($data);
2074: $Apache::londefdef::table[-1]{'length'} .= $current_length.',';
2075: $Apache::londefdef::table[-1]{'TeXlength'} .= '0,';
2076: }
2077: }
2078: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2079: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2080: }
2081: $data='\textbf{'.$data.'}';
2082: @{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{TOBECHANGEDONNUMBER}{'.$data.'} '.$Apache::londefdef::table[-1]{'vinc'};
2083: }
2084: return $currentstring;
2085: }
2086: #-- <img> tag (end tag forbidden)
2087: sub start_img {
2088: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2089: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2090: undef,1);
2091: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
2092: my $currentstring = '';
2093: my $width_param = '';
2094: my $height_param = '';
2095: my $scaling = .3;
2096: if ($target eq 'web') {
2097: if ($ENV{'browser.imagesuppress'} ne 'on') {
2098: $currentstring.= $token->[4];
2099: } else {
2100: my $alttag= &Apache::lonxml::get_param
2101: ('alt',$parstack,$safeeval,undef,1);
2102: unless ($alttag) {
2103: $alttag=&Apache::lonmeta::alttag
2104: ($Apache::lonxml::pwd[-1],$src);
2105: }
2106: $currentstring.='[IMAGE: '.$alttag.']';
2107: }
2108: } elsif ($target eq 'tex') {
2109: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
2110: &image_replication($src);
2111: #if original gif/jpg/png file exist do following:
2112: if (-e $src) {
2113: #defines the default size of image
2114: my $image = Image::Magick->new;
2115: my $current_figure = $image->Read($src);
2116: $width_param = $image->Get('width') * $scaling;;
2117: $height_param = $image->Get('height') * $scaling;;
2118: undef $image;
2119: #do we have any specified size of the picture?
2120: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval);
2121: my $TeXheight = &Apache::lonxml::get_param('TeXheight',$parstack,$safeeval);
2122: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
2123: undef,1);
2124: if ($TeXwidth ne '') {
2125: if ($TeXwidth=~/(\d+)\s*\%/) {
2126: $width_param = $1*$ENV{'form.textwidth'}/100;
2127: } else {
2128: $width_param = $TeXwidth;
2129: }
2130: } elsif ($TeXheight ne '') {
2131: $width_param = $TeXheight/$height_param*$width_param;
2132: } elsif ($width ne '') {
2133: $width_param = $width*$scaling;
2134: }
2135: if ($width_param > $ENV{'form.textwidth'}) {$width_param =0.95*$ENV{'form.textwidth'}}
2136: my $file;
2137: my $path;
2138: if ($src =~ m!(.*)/([^/]*)$!) {
2139: $file = $2;
2140: $path = $1.'/';
2141: }
2142: my $newsrc = $src;
2143: $newsrc =~ s/\.(gif|jpg|png)$/.eps/i;
2144: $file=~s/\.(gif|jpg|png)$/.eps/i;
2145: #where can we find the picture?
2146: if (-e $newsrc) {
2147: #eps counterpart for image exist
2148: if ($path) {
2149: $currentstring .= '\vskip 1 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
2150: }
2151: } else {
2152: #there is no eps counterpart for image - check for ps one
2153: $newsrc =~ s/\.eps$/\.ps/;
2154: if (-e $newsrc) {
2155: #ps counterpart for image exist
2156: $file =~ s/\.eps$/\.ps/;
2157: if ($path) {
2158: $currentstring .= '\vskip 1 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
2159: }
2160: } else {
2161: #there aren't eps or ps - so create eps
2162: my $temp_file;
2163: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.dat";
2164: $temp_file = Apache::File->new('>>'.$filename);
2165: print $temp_file "$src\n";
2166: $currentstring .= '\vskip 1 mm \graphicspath{{/home/httpd/prtspool/}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
2167: }
2168: }
2169: } else {
2170: #original image file doesn't exist so check the alt attribute
2171: my $alt =
2172: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2173: unless ($alt) {
2174: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2175: }
2176:
2177: if ($alt) {
2178: $currentstring .= ' '.$alt.' ';
2179: } else {
2180: #<allow> tag will care about replication
2181: }
2182: }
2183: }
2184: return $currentstring;
2185: }
2186:
2187: sub end_img {
2188: my ($target,$token) = @_;
2189: my $currentstring = '';
2190: if ($target eq 'web') {
2191: $currentstring = $token->[2];
2192: } elsif ($target eq 'tex') {
2193: $currentstring = '';
2194: }
2195: return $currentstring;
2196: }
2197:
2198: #-- <applet> tag (end tag required)
2199: sub start_applet {
2200: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2201:
2202: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
2203: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$code;
2204:
2205: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2206: undef,1);
2207: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$archive;
2208:
2209: my $currentstring = '';
2210: if ($target eq 'web') {
2211: if ($ENV{'browser.appletsuppress'} ne 'on') {
2212: $currentstring = $token->[4];
2213: } else {
2214: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2215: $safeeval,undef,1);
2216: unless ($alttag) {
2217: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2218: $code);
2219: }
2220: $currentstring='[APPLET: '.$alttag.']';
2221: }
2222: } elsif ($target eq 'tex') {
2223: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2224: $safeeval,undef,1);
2225: unless ($alttag) {
2226: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
2227: undef,1);
2228: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2229: $code);
2230: }
2231: $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
2232: '.}\end{center}';
2233: }
2234: return $currentstring;
2235: }
2236:
2237: sub end_applet {
2238: my ($target,$token) = @_;
2239: my $currentstring = '';
2240: if ($target eq 'web') {
2241: $currentstring = $token->[2];
2242: } elsif ($target eq 'tex') {
2243: }
2244: return $currentstring;
2245: }
2246:
2247: #-- <embed> tag (end tag optional/required)
2248: sub start_embed {
2249: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2250: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2251: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
2252: my $currentstring = '';
2253: if ($target eq 'web') {
2254: if ($ENV{'browser.embedsuppress'} ne 'on') {
2255: $currentstring = $token->[4];
2256: } else {
2257: my $alttag=&Apache::lonxml::get_param
2258: ('alt',$parstack,$safeeval,undef,1);
2259: unless ($alttag) {
2260: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2261: }
2262: $currentstring='[EMBED: '.$alttag.']';
2263: }
2264: } elsif ($target eq 'tex') {
2265: }
2266: return $currentstring;
2267: }
2268:
2269: sub end_embed {
2270: my ($target,$token) = @_;
2271: my $currentstring = '';
2272: if ($target eq 'web') {
2273: $currentstring = $token->[2];
2274: } elsif ($target eq 'tex') {
2275: }
2276: return $currentstring;
2277: }
2278:
2279: #-- <param> tag (end tag forbidden)
2280: sub start_param {
2281: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2282: if (&Apache::lonxml::get_param
2283: ('name',$parstack,$safeeval,undef,1)=~/^cabbase$/i) {
2284: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2285: &Apache::lonxml::get_param('value',$parstack,$safeeval,undef,1);
2286: }
2287: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2288: &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2289: my $currentstring = '';
2290: if ($target eq 'web') {
2291: $currentstring = $token->[4];
2292: } elsif ($target eq 'tex') {
2293: }
2294: return $currentstring;
2295: }
2296:
2297: sub end_param {
2298: my ($target,$token) = @_;
2299: my $currentstring = '';
2300: if ($target eq 'web') {
2301: $currentstring = $token->[2];
2302: } elsif ($target eq 'tex') {
2303: }
2304: return $currentstring;
2305: }
2306:
2307: #-- <allow> tag
2308: sub start_allow {
2309: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2310: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2311: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
2312: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2313: &Apache::lonnet::clutter($src);
2314: &image_replication($src);
2315: my $result;
2316: if ($target eq 'edit') {
2317: $result .=&Apache::edit::tag_start($target,$token);
2318: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
2319: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
2320: } elsif ($target eq 'modified') {
2321: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2322: $safeeval,'src');
2323: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2324: }
2325: return $result;
2326: }
2327:
2328: sub end_allow {
2329: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2330: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
2331: return '';
2332: }
2333:
2334: #-- Frames (end tag required)
2335: #-- <frameset>
2336: sub start_frameset {
2337: my ($target,$token) = @_;
2338: my $currentstring = '';
2339: if ($target eq 'web') {
2340: if (!$Apache::lonxml::registered &&
2341: $ENV{'request.state'} eq 'published') {
2342: $currentstring.='<head>'.
2343: &Apache::lonmenu::registerurl(undef,$target).'</head>';
2344: }
2345: my $onLoad='';
2346: foreach my $key (keys(%{$token->[2]})) {
2347: if ($key =~ /^onload$/i) {
2348: $onLoad.=$token->[2]->{$key}.';';
2349: delete($token->[2]->{$key});
2350: }
2351: }
2352: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
2353: my $onUnload='';
2354: foreach my $key (keys(%{$token->[2]})) {
2355: if ($key =~ /^onunload$/i) {
2356: $onUnload.=$token->[2]->{$key}.';';
2357: delete($token->[2]->{$key});
2358: }
2359: }
2360: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
2361: ';'.$onUnload;
2362:
2363: $currentstring .= '<'.$token->[1];
2364: foreach (keys %{$token->[2]}) {
2365: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
2366: }
2367: $currentstring.='>';
2368: }
2369: return $currentstring;
2370: }
2371:
2372: sub end_frameset {
2373: my ($target,$token) = @_;
2374: my $currentstring = '';
2375: if ($target eq 'web') {
2376: $currentstring = $token->[2];
2377: }
2378: return $currentstring;
2379: }
2380:
2381: #-- <xmp> (end tag required)
2382: sub start_xmp {
2383: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2384: my $currentstring = '';
2385: if ($target eq 'web') {
2386: $currentstring .= $token->[4];
2387: } elsif ($target eq 'tex') {
2388: $currentstring .= '\begin{verbatim}';
2389: }
2390: return $currentstring;
2391: }
2392:
2393: sub end_xmp {
2394: my ($target,$token) = @_;
2395: my $currentstring = '';
2396: if ($target eq 'web') {
2397: $currentstring .= $token->[2];
2398: } elsif ($target eq 'tex') {
2399: $currentstring .= '\end{verbatim}';
2400: }
2401: return $currentstring;
2402: }
2403:
2404: #-- <pre> (end tag required)
2405: sub start_pre {
2406: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2407: my $currentstring = '';
2408: if ($target eq 'web') {
2409: $currentstring .= $token->[4];
2410: } elsif ($target eq 'tex') {
2411: $currentstring .= '\begin{verbatim}';
2412: }
2413: return $currentstring;
2414: }
2415:
2416: sub end_pre {
2417: my ($target,$token) = @_;
2418: my $currentstring = '';
2419: if ($target eq 'web') {
2420: $currentstring .= $token->[2];
2421: } elsif ($target eq 'tex') {
2422: $currentstring .= '\end{verbatim}';
2423: }
2424: return $currentstring;
2425: }
2426:
2427: #-- <insert>
2428: sub start_insert {
2429: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2430: my $currentstring = '';
2431: if ($target eq 'web') {
2432: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2433: $currentstring .= '<b>'.$display.'</b>';;
2434: }
2435: return $currentstring;
2436: }
2437:
2438: sub end_insert {
2439: my ($target,$token) = @_;
2440: my $currentstring = '';
2441: if ($target eq 'web') {
2442: $currentstring .= '';
2443: }
2444: return $currentstring;
2445: }
2446:
2447: #-- <externallink>
2448: sub start_externallink {
2449: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2450: my $currentstring = '';
2451: if ($target eq 'web') {
2452: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2453: $currentstring .= '<b>'.$display.'</b>';;
2454: }
2455: return $currentstring;
2456: }
2457:
2458: sub end_externallink {
2459: my ($target,$token) = @_;
2460: my $currentstring = '';
2461: if ($target eq 'web') {
2462: $currentstring .= '';
2463: }
2464: return $currentstring;
2465: }
2466:
2467: #-- <blankspace heigth="">
2468: sub start_blankspace {
2469: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2470: my $currentstring = '';
2471: if ($target eq 'tex') {
2472: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
2473: $currentstring .= '\vskip '.$howmuch.' ';
2474: }
2475: return $currentstring;
2476: }
2477:
2478: sub end_blankspace {
2479: my ($target,$token) = @_;
2480: my $currentstring = '';
2481: if ($target eq 'tex') {
2482: $currentstring .= '';
2483: }
2484: return $currentstring;
2485: }
2486:
2487: #-- <abbr> tag (end tag required)
2488: sub start_abbr {
2489: my ($target,$token) = @_;
2490: my $currentstring = '';
2491: if ($target eq 'web') {
2492: $currentstring = $token->[4];
2493: }
2494: return $currentstring;
2495: }
2496:
2497: sub end_abbr {
2498: my ($target,$token) = @_;
2499: my $currentstring = '';
2500: if ($target eq 'web') {
2501: $currentstring = $token->[2];
2502: }
2503: return $currentstring;
2504: }
2505:
2506: #-- <acronym> tag (end tag required)
2507: sub start_acronym {
2508: my ($target,$token) = @_;
2509: my $currentstring = '';
2510: if ($target eq 'web') {
2511: $currentstring = $token->[4];
2512: }
2513: return $currentstring;
2514: }
2515:
2516: sub end_acronym {
2517: my ($target,$token) = @_;
2518: my $currentstring = '';
2519: if ($target eq 'web') {
2520: $currentstring = $token->[2];
2521: }
2522: return $currentstring;
2523: }
2524:
2525: #-- <area> tag (end tag forbidden)
2526: sub start_area {
2527: my ($target,$token) = @_;
2528: my $currentstring = '';
2529: if ($target eq 'web') {
2530: $currentstring = $token->[4];
2531: }
2532: return $currentstring;
2533: }
2534:
2535: sub end_area {
2536: my ($target,$token) = @_;
2537: my $currentstring = '';
2538: if ($target eq 'web') {
2539: $currentstring = $token->[2];
2540: }
2541: return $currentstring;
2542: }
2543:
2544: #-- <base> tag (end tag forbidden)
2545: sub start_base {
2546: my ($target,$token) = @_;
2547: my $currentstring = '';
2548: if ($target eq 'web') {
2549: $currentstring = $token->[4];
2550: }
2551: return $currentstring;
2552: }
2553:
2554: sub end_base {
2555: my ($target,$token) = @_;
2556: my $currentstring = '';
2557: if ($target eq 'web') {
2558: $currentstring = $token->[2];
2559: }
2560: return $currentstring;
2561: }
2562:
2563: #-- <bdo> tag (end tag required)
2564: sub start_bdo {
2565: my ($target,$token) = @_;
2566: my $currentstring = '';
2567: if ($target eq 'web') {
2568: $currentstring = $token->[4];
2569: }
2570: return $currentstring;
2571: }
2572:
2573: sub end_bdo {
2574: my ($target,$token) = @_;
2575: my $currentstring = '';
2576: if ($target eq 'web') {
2577: $currentstring = $token->[2];
2578: }
2579: return $currentstring;
2580: }
2581:
2582: #-- <bgsound> tag (end tag optional)
2583: sub start_bgsound {
2584: my ($target,$token) = @_;
2585: my $currentstring = '';
2586: if ($target eq 'web') {
2587: $currentstring = $token->[4];
2588: }
2589: return $currentstring;
2590: }
2591:
2592: sub end_bgsound {
2593: my ($target,$token) = @_;
2594: my $currentstring = '';
2595: if ($target eq 'web') {
2596: $currentstring = $token->[2];
2597: }
2598: return $currentstring;
2599: }
2600:
2601: #-- <blink> tag (end tag required)
2602: sub start_blink {
2603: my ($target,$token) = @_;
2604: my $currentstring = '';
2605: if ($target eq 'web') {
2606: $currentstring = $token->[4];
2607: }
2608: return $currentstring;
2609: }
2610:
2611: sub end_blink {
2612: my ($target,$token) = @_;
2613: my $currentstring = '';
2614: if ($target eq 'web') {
2615: $currentstring = $token->[2];
2616: }
2617: return $currentstring;
2618: }
2619:
2620: #-- <blockquote> tag (end tag required)
2621: sub start_blockquote {
2622: my ($target,$token) = @_;
2623: my $currentstring = '';
2624: if ($target eq 'web') {
2625: $currentstring = $token->[4];
2626: }
2627: return $currentstring;
2628: }
2629:
2630: sub end_blockquote {
2631: my ($target,$token) = @_;
2632: my $currentstring = '';
2633: if ($target eq 'web') {
2634: $currentstring = $token->[2];
2635: }
2636: return $currentstring;
2637: }
2638:
2639: #-- <button> tag (end tag required)
2640: sub start_button {
2641: my ($target,$token) = @_;
2642: my $currentstring = '';
2643: if ($target eq 'web') {
2644: $currentstring = $token->[4];
2645: }
2646: return $currentstring;
2647: }
2648:
2649: sub end_button {
2650: my ($target,$token) = @_;
2651: my $currentstring = '';
2652: if ($target eq 'web') {
2653: $currentstring = $token->[2];
2654: }
2655: return $currentstring;
2656: }
2657:
2658: #-- <caption> tag (end tag required)
2659: sub start_caption {
2660: my ($target,$token) = @_;
2661: my $currentstring = '';
2662: if ($target eq 'web') {
2663: $currentstring = $token->[4];
2664: }
2665: return $currentstring;
2666: }
2667:
2668: sub end_caption {
2669: my ($target,$token) = @_;
2670: my $currentstring = '';
2671: if ($target eq 'web') {
2672: $currentstring = $token->[2];
2673: }
2674: return $currentstring;
2675: }
2676:
2677: #-- <col> tag (end tag forbdden)
2678: sub start_col {
2679: my ($target,$token) = @_;
2680: my $currentstring = '';
2681: if ($target eq 'web') {
2682: $currentstring = $token->[4];
2683: }
2684: return $currentstring;
2685: }
2686:
2687: sub end_col {
2688: my ($target,$token) = @_;
2689: my $currentstring = '';
2690: if ($target eq 'web') {
2691: $currentstring = $token->[2];
2692: }
2693: return $currentstring;
2694: }
2695:
2696: #-- <colgroup> tag (end tag optional)
2697: sub start_colgroup {
2698: my ($target,$token) = @_;
2699: my $currentstring = '';
2700: if ($target eq 'web') {
2701: $currentstring = $token->[4];
2702: }
2703: return $currentstring;
2704: }
2705:
2706: sub end_colgroup {
2707: my ($target,$token) = @_;
2708: my $currentstring = '';
2709: if ($target eq 'web') {
2710: $currentstring = $token->[2];
2711: }
2712: return $currentstring;
2713: }
2714:
2715: #-- <del> tag (end tag required)
2716: sub start_del {
2717: my ($target,$token) = @_;
2718: my $currentstring = '';
2719: if ($target eq 'web') {
2720: $currentstring = $token->[4];
2721: }
2722: return $currentstring;
2723: }
2724:
2725: sub end_del {
2726: my ($target,$token) = @_;
2727: my $currentstring = '';
2728: if ($target eq 'web') {
2729: $currentstring = $token->[2];
2730: }
2731: return $currentstring;
2732: }
2733:
2734: #-- <fieldset> tag (end tag required)
2735: sub start_fieldset {
2736: my ($target,$token) = @_;
2737: my $currentstring = '';
2738: if ($target eq 'web') {
2739: $currentstring = $token->[4];
2740: }
2741: return $currentstring;
2742: }
2743:
2744: sub end_fieldset {
2745: my ($target,$token) = @_;
2746: my $currentstring = '';
2747: if ($target eq 'web') {
2748: $currentstring = $token->[2];
2749: }
2750: return $currentstring;
2751: }
2752:
2753: #-- <frame> tag (end tag forbidden)
2754: sub start_frame {
2755: my ($target,$token) = @_;
2756: my $currentstring = '';
2757: if ($target eq 'web') {
2758: $currentstring = $token->[4];
2759: }
2760: return $currentstring;
2761: }
2762:
2763: sub end_frame {
2764: my ($target,$token) = @_;
2765: my $currentstring = '';
2766: if ($target eq 'web') {
2767: $currentstring = $token->[2];
2768: }
2769: return $currentstring;
2770: }
2771:
2772: #-- <iframe> tag (end tag required)
2773: sub start_iframe {
2774: my ($target,$token) = @_;
2775: my $currentstring = '';
2776: if ($target eq 'web') {
2777: $currentstring = $token->[4];
2778: }
2779: return $currentstring;
2780: }
2781:
2782: sub end_iframe {
2783: my ($target,$token) = @_;
2784: my $currentstring = '';
2785: if ($target eq 'web') {
2786: $currentstring = $token->[2];
2787: }
2788: return $currentstring;
2789: }
2790:
2791: #-- <ins> tag (end tag required)
2792: sub start_ins {
2793: my ($target,$token) = @_;
2794: my $currentstring = '';
2795: if ($target eq 'web') {
2796: $currentstring = $token->[4];
2797: }
2798: return $currentstring;
2799: }
2800:
2801: sub end_ins {
2802: my ($target,$token) = @_;
2803: my $currentstring = '';
2804: if ($target eq 'web') {
2805: $currentstring = $token->[2];
2806: }
2807: return $currentstring;
2808: }
2809:
2810: #-- <isindex> tag (end tag forbidden)
2811: sub start_isindex {
2812: my ($target,$token) = @_;
2813: my $currentstring = '';
2814: if ($target eq 'web') {
2815: $currentstring = $token->[4];
2816: }
2817: return $currentstring;
2818: }
2819:
2820: sub end_isindex {
2821: my ($target,$token) = @_;
2822: my $currentstring = '';
2823: if ($target eq 'web') {
2824: $currentstring = $token->[2];
2825: }
2826: return $currentstring;
2827: }
2828:
2829: #-- <keygen> tag (end tag forbidden)
2830: sub start_keygen {
2831: my ($target,$token) = @_;
2832: my $currentstring = '';
2833: if ($target eq 'web') {
2834: $currentstring = $token->[4];
2835: }
2836: return $currentstring;
2837: }
2838:
2839: sub end_keygen {
2840: my ($target,$token) = @_;
2841: my $currentstring = '';
2842: if ($target eq 'web') {
2843: $currentstring = $token->[2];
2844: }
2845: return $currentstring;
2846: }
2847:
2848: #-- <label> tag
2849: sub start_label {
2850: my ($target,$token) = @_;
2851: my $currentstring = '';
2852: if ($target eq 'web') {
2853: $currentstring = $token->[4];
2854: }
2855: return $currentstring;
2856: }
2857:
2858: sub end_label {
2859: my ($target,$token) = @_;
2860: my $currentstring = '';
2861: if ($target eq 'web') {
2862: $currentstring = $token->[2];
2863: }
2864: return $currentstring;
2865: }
2866:
2867: #-- <layer> tag (end tag required)
2868: sub start_layer {
2869: my ($target,$token) = @_;
2870: my $currentstring = '';
2871: if ($target eq 'web') {
2872: $currentstring = $token->[4];
2873: }
2874: return $currentstring;
2875: }
2876:
2877: sub end_layer {
2878: my ($target,$token) = @_;
2879: my $currentstring = '';
2880: if ($target eq 'web') {
2881: $currentstring = $token->[2];
2882: }
2883: return $currentstring;
2884: }
2885:
2886: #-- <legend> tag (end tag required)
2887: sub start_legend {
2888: my ($target,$token) = @_;
2889: my $currentstring = '';
2890: if ($target eq 'web') {
2891: $currentstring = $token->[4];
2892: }
2893: return $currentstring;
2894: }
2895:
2896: sub end_legend {
2897: my ($target,$token) = @_;
2898: my $currentstring = '';
2899: if ($target eq 'web') {
2900: $currentstring = $token->[2];
2901: }
2902: return $currentstring;
2903: }
2904:
2905: #-- <link> tag (end tag forbidden)
2906: sub start_link {
2907: my ($target,$token) = @_;
2908: my $currentstring = '';
2909: if ($target eq 'web') {
2910: $currentstring = $token->[4];
2911: }
2912: return $currentstring;
2913: }
2914:
2915: sub end_link {
2916: my ($target,$token) = @_;
2917: my $currentstring = '';
2918: if ($target eq 'web') {
2919: $currentstring = $token->[2];
2920: }
2921: return $currentstring;
2922: }
2923:
2924: #-- <marquee> tag (end tag optional)
2925: sub start_marquee {
2926: my ($target,$token) = @_;
2927: my $currentstring = '';
2928: if ($target eq 'web') {
2929: $currentstring = $token->[4];
2930: }
2931: return $currentstring;
2932: }
2933:
2934: sub end_marquee {
2935: my ($target,$token) = @_;
2936: my $currentstring = '';
2937: if ($target eq 'web') {
2938: $currentstring = $token->[2];
2939: }
2940: return $currentstring;
2941: }
2942:
2943: #-- <multicol> tag (end tag required)
2944: sub start_multicol {
2945: my ($target,$token) = @_;
2946: my $currentstring = '';
2947: if ($target eq 'web') {
2948: $currentstring = $token->[4];
2949: }
2950: return $currentstring;
2951: }
2952:
2953: sub end_multicol {
2954: my ($target,$token) = @_;
2955: my $currentstring = '';
2956: if ($target eq 'web') {
2957: $currentstring = $token->[2];
2958: }
2959: return $currentstring;
2960: }
2961:
2962: #-- <nobr> tag (end tag required)
2963: sub start_nobr {
2964: my ($target,$token) = @_;
2965: my $currentstring = '';
2966: if ($target eq 'web') {
2967: $currentstring = $token->[4];
2968: } elsif ($target eq 'tex') {
2969: $currentstring='\mbox{';
2970: }
2971: return $currentstring;
2972: }
2973:
2974: sub end_nobr {
2975: my ($target,$token) = @_;
2976: my $currentstring = '';
2977: if ($target eq 'web') {
2978: $currentstring = $token->[2];
2979: } elsif ($target eq 'tex') {
2980: $currentstring='}';
2981: }
2982: return $currentstring;
2983: }
2984:
2985: #-- <noembed> tag (end tag required)
2986: sub start_noembed {
2987: my ($target,$token) = @_;
2988: my $currentstring = '';
2989: if ($target eq 'web') {
2990: $currentstring = $token->[4];
2991: }
2992: return $currentstring;
2993: }
2994:
2995: sub end_noembed {
2996: my ($target,$token) = @_;
2997: my $currentstring = '';
2998: if ($target eq 'web') {
2999: $currentstring = $token->[2];
3000: }
3001: return $currentstring;
3002: }
3003:
3004: #-- <noframes> tag (end tag required)
3005: sub start_noframes {
3006: my ($target,$token) = @_;
3007: my $currentstring = '';
3008: if ($target eq 'web') {
3009: $currentstring = $token->[4];
3010: }
3011: return $currentstring;
3012: }
3013:
3014: sub end_noframes {
3015: my ($target,$token) = @_;
3016: my $currentstring = '';
3017: if ($target eq 'web') {
3018: $currentstring = $token->[2];
3019: }
3020: return $currentstring;
3021: }
3022:
3023: #-- <nolayer> tag (end tag required)
3024: sub start_nolayer {
3025: my ($target,$token) = @_;
3026: my $currentstring = '';
3027: if ($target eq 'web') {
3028: $currentstring = $token->[4];
3029: }
3030: return $currentstring;
3031: }
3032:
3033: sub end_nolayer {
3034: my ($target,$token) = @_;
3035: my $currentstring = '';
3036: if ($target eq 'web') {
3037: $currentstring = $token->[2];
3038: }
3039: return $currentstring;
3040: }
3041:
3042: #-- <noscript> tag (end tag required)
3043: sub start_noscript {
3044: my ($target,$token) = @_;
3045: my $currentstring = '';
3046: if ($target eq 'web') {
3047: $currentstring = $token->[4];
3048: }
3049: return $currentstring;
3050: }
3051:
3052: sub end_noscript {
3053: my ($target,$token) = @_;
3054: my $currentstring = '';
3055: if ($target eq 'web') {
3056: $currentstring = $token->[2];
3057: }
3058: return $currentstring;
3059: }
3060:
3061: #-- <object> tag (end tag required)
3062: sub start_object {
3063: my ($target,$token) = @_;
3064: my $currentstring = '';
3065: if ($target eq 'web') {
3066: $currentstring = $token->[4];
3067: }
3068: return $currentstring;
3069: }
3070:
3071: sub end_object {
3072: my ($target,$token) = @_;
3073: my $currentstring = '';
3074: if ($target eq 'web') {
3075: $currentstring = $token->[2];
3076: }
3077: return $currentstring;
3078: }
3079:
3080: #-- <optgroup> tag (end tag required)
3081: sub start_optgroup {
3082: my ($target,$token) = @_;
3083: my $currentstring = '';
3084: if ($target eq 'web') {
3085: $currentstring = $token->[4];
3086: }
3087: return $currentstring;
3088: }
3089:
3090: sub end_optgroup {
3091: my ($target,$token) = @_;
3092: my $currentstring = '';
3093: if ($target eq 'web') {
3094: $currentstring = $token->[2];
3095: }
3096: return $currentstring;
3097: }
3098:
3099: #-- <samp> tag (end tag required)
3100: sub start_samp {
3101: my ($target,$token) = @_;
3102: my $currentstring = '';
3103: if ($target eq 'web') {
3104: $currentstring = $token->[4];
3105: } elsif ($target eq 'tex') {
3106: $currentstring='\texttt{';
3107: }
3108: return $currentstring;
3109: }
3110:
3111: sub end_samp {
3112: my ($target,$token) = @_;
3113: my $currentstring = '';
3114: if ($target eq 'web') {
3115: $currentstring = $token->[2];
3116: } elsif ($target eq 'tex') {
3117: $currentstring='}';
3118: }
3119: return $currentstring;
3120: }
3121:
3122: #-- <server> tag
3123: sub start_server {
3124: my ($target,$token) = @_;
3125: my $currentstring = '';
3126: if ($target eq 'web') {
3127: $currentstring = $token->[4];
3128: }
3129: return $currentstring;
3130: }
3131:
3132: sub end_server {
3133: my ($target,$token) = @_;
3134: my $currentstring = '';
3135: if ($target eq 'web') {
3136: $currentstring = $token->[2];
3137: }
3138: return $currentstring;
3139: }
3140:
3141: #-- <spacer> tag (end tag forbidden)
3142: sub start_spacer {
3143: my ($target,$token) = @_;
3144: my $currentstring = '';
3145: if ($target eq 'web') {
3146: $currentstring = $token->[4];
3147: }
3148: return $currentstring;
3149: }
3150:
3151: sub end_spacer {
3152: my ($target,$token) = @_;
3153: my $currentstring = '';
3154: if ($target eq 'web') {
3155: $currentstring = $token->[2];
3156: }
3157: return $currentstring;
3158: }
3159:
3160: #-- <span> tag (end tag required)
3161: sub start_span {
3162: my ($target,$token) = @_;
3163: my $currentstring = '';
3164: if ($target eq 'web') {
3165: $currentstring = $token->[4];
3166: }
3167: return $currentstring;
3168: }
3169:
3170: sub end_span {
3171: my ($target,$token) = @_;
3172: my $currentstring = '';
3173: if ($target eq 'web') {
3174: $currentstring = $token->[2];
3175: }
3176: return $currentstring;
3177: }
3178:
3179: #-- <tbody> tag (end tag optional)
3180: sub start_tbody {
3181: my ($target,$token) = @_;
3182: my $currentstring = '';
3183: if ($target eq 'web') {
3184: $currentstring = $token->[4];
3185: }
3186: return $currentstring;
3187: }
3188:
3189: sub end_tbody {
3190: my ($target,$token) = @_;
3191: my $currentstring = '';
3192: if ($target eq 'web') {
3193: $currentstring = $token->[2];
3194: }
3195: return $currentstring;
3196: }
3197:
3198: #-- <tfoot> tag (end tag optional)
3199: sub start_tfoot {
3200: my ($target,$token) = @_;
3201: my $currentstring = '';
3202: if ($target eq 'web') {
3203: $currentstring = $token->[4];
3204: }
3205: return $currentstring;
3206: }
3207:
3208: sub end_tfoot {
3209: my ($target,$token) = @_;
3210: my $currentstring = '';
3211: if ($target eq 'web') {
3212: $currentstring = $token->[2];
3213: }
3214: return $currentstring;
3215: }
3216:
3217: #-- <thead> tag (end tag optional)
3218: sub start_thead {
3219: my ($target,$token) = @_;
3220: my $currentstring = '';
3221: if ($target eq 'web') {
3222: $currentstring = $token->[4];
3223: }
3224: return $currentstring;
3225: }
3226:
3227: sub end_thead {
3228: my ($target,$token) = @_;
3229: my $currentstring = '';
3230: if ($target eq 'web') {
3231: $currentstring = $token->[2];
3232: }
3233: return $currentstring;
3234: }
3235:
3236: #-- <var> tag
3237: sub start_var {
3238: my ($target,$token) = @_;
3239: my $currentstring = '';
3240: if ($target eq 'web') {
3241: $currentstring = $token->[4];
3242: } elsif ($target eq 'tex') {
3243: $currentstring = '\textit{';
3244: }
3245: return $currentstring;
3246: }
3247:
3248: sub end_var {
3249: my ($target,$token) = @_;
3250: my $currentstring = '';
3251: if ($target eq 'web') {
3252: $currentstring = $token->[2];
3253: } elsif ($target eq 'tex') {
3254: $currentstring = '}';
3255: }
3256: return $currentstring;
3257: }
3258:
3259: #-- <wbr> tag (end tag forbidden)
3260: sub start_wbr {
3261: my ($target,$token) = @_;
3262: my $currentstring = '';
3263: if ($target eq 'web') {
3264: $currentstring = $token->[4];
3265: }
3266: return $currentstring;
3267: }
3268:
3269: sub end_wbr {
3270: my ($target,$token) = @_;
3271: my $currentstring = '';
3272: if ($target eq 'web') {
3273: $currentstring = $token->[2];
3274: }
3275: return $currentstring;
3276: }
3277:
3278: #-- <hideweboutput> tag
3279: sub start_hideweboutput {
3280: my ($target,$token) = @_;
3281: if ($target eq 'web') {
3282: &Apache::lonxml::startredirection();
3283: }
3284: return '';
3285: }
3286:
3287: sub end_hideweboutput {
3288: my ($target,$token) = @_;
3289: my $currentstring = '';
3290: if ($target eq 'web') {
3291: $currentstring = &Apache::lonxml::endredirection();
3292: }
3293: return '';
3294: }
3295:
3296:
3297: sub image_replication {
3298: my $src = shift;
3299: if (not -e $src) {
3300: #replicates image itself
3301: &Apache::lonnet::repcopy($src);
3302: #replicates eps or ps
3303: my $newsrc = $src;
3304: $newsrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
3305: if (not -e $newsrc) {
3306: if (&Apache::lonnet::repcopy($newsrc) ne 'OK') {
3307: $newsrc =~ s/\.eps$/\.ps/;
3308: &Apache::lonnet::repcopy($newsrc);
3309: }
3310: }
3311: }
3312: return '';
3313: }
3314:
3315: sub recalc {
3316: my $argument = shift;
3317: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
3318: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
3319: my $value=$1;
3320: my $units=$2;
3321: if ($units eq 'cm') {
3322: $value*=10;
3323: } elsif ($units eq 'in') {
3324: $value*=25.4;
3325: } elsif ($units eq 'pc') {
3326: $value*=(25.4*12/72.27);
3327: } elsif ($units eq 'pt') {
3328: $value*=(25.4/72.27);
3329: }
3330: return $value.' mm';
3331: }
3332:
3333: 1;
3334: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to londefdef.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / xml