File:
[LON-CAPA] /
loncom /
xml /
londefdef.pm
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1.172:
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Thu Sep 25 15:52:57 2003 UTC (20 years, 7 months ago) by
sakharuk
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MAIN
CVS tags:
HEAD
Bug 2230 (<dl><dt><center>hi</center></dt></dl>) is fixed. In addition you can omit </dt> tag which is optional in HTML. But this bug has originated a lot of other questions - we can have far more complicated situations with different combinations of HTML tags in definition list. Continue to work with this but close 2230.
1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
4: # $Id: londefdef.pm,v 1.172 2003/09/25 15:52:57 sakharuk Exp $
5: #
6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
20: #
21: # You should have received a copy of the GNU General Public License
22: # along with LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
26: #
27: # http://www.lon-capa.org/
28: ## Copyright for TtHfunc and TtMfunc by Ian Hutchinson.
29: # TtHfunc and TtMfunc (the "Code") may be compiled and linked into
30: # binary executable programs or libraries distributed by the
31: # Michigan State University (the "Licensee"), but any binaries so
32: # distributed are hereby licensed only for use in the context
33: # of a program or computational system for which the Licensee is the
34: # primary author or distributor, and which performs substantial
35: # additional tasks beyond the translation of (La)TeX into HTML.
36: # The C source of the Code may not be distributed by the Licensee
37: # to any other parties under any circumstances.
38: #
39: #
40: # last modified 06/26/00 by Alexander Sakharuk
41: # 11/6,11/30,02/01/01,5/4 Gerd Kortemeyer
42: # 01/18 Alex Sakharuk
43:
44: package Apache::londefdef;
45:
46: use Apache::lonnet();
47: use strict;
48: use Apache::lonxml;
49: use Apache::File();
50: use Image::Magick;
51: use Apache::lonmenu();
52: use Apache::lonmeta();
53:
54: $Apache::londefdef::TD_redirection=0;
55:
56: BEGIN {
57:
58: &Apache::lonxml::register('Apache::londefdef',('a','abbr','acronym','accessrule','address','allow','applet','area','b','base','basefont','bgo','bgsound','big','blink','blockquote','blankspace','body','br','button','caption','center','cite','code','col','colgroup','dd','del','dfn','dir','div','dl','dt','em','embed','externallink','fieldset','font','form','frame','frameset','h1','h2','h3','h4','h5','h6','head','hr','html','i','iframe','img','input','ins','insert','isindex','kbd','keygen','label','layer','legend','li','link','m','map','marquee','menu','meta','multicol','nobr','noembed','noframes','nolayer','noscript','object','ol','optgroup','option','output','p','param','pre','q','s','samp','select','server','small','spacer','span','strike','strong','sub','sup','table','tbody','td','textarea','tfoot','th','thead','title','tr','tt','tthoption','u','ul','var','wbr','hideweboutput'));
59:
60: }
61:
62: #======================= TAG SUBROUTINES =====================
63: #-- <output>
64: sub start_output {
65: my ($target) = @_;
66: if ($target eq 'meta') { $Apache::lonxml::metamode--; }
67: return '';
68: }
69: sub end_output {
70: my ($target) = @_;
71: if ($target eq 'meta') { $Apache::lonxml::metamode++; }
72: return '';
73: }
74: #-- <m> tag
75: sub start_m {
76: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
77: my $currentstring = '';
78: if ($target eq 'web') {
79: $Apache::lonxml::prevent_entity_encode++;
80: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
81: $inside ='\\documentstyle{article}'.$inside;
82: &Apache::lonxml::debug("M is starting with:$inside:");
83: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
84: if ($eval eq 'on') {
85: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
86: #&Apache::lonxml::debug("M is evaulated to:$inside:");
87: }
88: $currentstring = &Apache::lontexconvert::converted(\$inside);
89: if ($Apache::lontexconvert::errorstring) {
90: &Apache::lonxml::warning("tth error: ".
91: $Apache::lontexconvert::errorstring);
92: $Apache::lontexconvert::errorstring='';
93: }
94: #&Apache::lonxml::debug("M is ends with:$currentstring:");
95: } elsif ($target eq 'tex') {
96: $currentstring = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
97: if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
98: } else {
99: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
100: }
101: return $currentstring;
102: }
103:
104: sub end_m {
105: my ($target,$token) = @_;
106: my $currentstring = '';
107: if ($target eq 'web') {
108: $Apache::lonxml::prevent_entity_encode--;
109: } elsif ($target eq 'tex') {
110: $currentstring = "";
111: } elsif ($target eq 'meta') {
112: }
113: return $currentstring;
114: }
115:
116: sub start_tthoption {
117: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
118: my $result;
119: if ($target eq 'web') {
120: my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser);
121: $inside=~s/^\s*//;
122: if ($ENV{'browser.mathml'}) {
123: &tth::ttmoptions($inside);
124: } else {
125: &tth::tthoptions($inside);
126: }
127: }
128: return $result;
129: }
130:
131: sub end_tthoption {
132: my ($target,$token) = @_;
133: my $result;
134: return $result;
135: }
136:
137: #-- <html> tag
138: sub start_html {
139: my ($target,$token) = @_;
140: my $currentstring = '';
141: if ($ENV{'browser.mathml'}) {
142: &tth::ttminit();
143: if ($ENV{'browser.unicode'}) {
144: &tth::ttmoptions('-L -u1');
145: } else {
146: &tth::ttmoptions('-L -u0');
147: }
148: } else {
149: &tth::tthinit();
150: if ($ENV{'browser.unicode'}) {
151: &tth::tthoptions('-L -u1');
152: } else {
153: &tth::tthoptions('-L -u0');
154: }
155: }
156: if ($target eq 'web') {
157: $currentstring = &Apache::lonxml::xmlbegin().
158: &Apache::lonxml::fontsettings();
159: } elsif ($target eq 'tex') {
160: @Apache::londefdef::table = ();
161: $currentstring .= '\documentclass[letterpaper]{article}';
162: if ($ENV{'form.latex_type'}=~'batchmode') {$currentstring .='\batchmode';}
163: $currentstring .= '\newcommand{\keephidden}[1]{}
164: \renewcommand{\deg}{$^{\circ}$}
165: \usepackage{longtable}
166: \usepackage{textcomp}
167: \usepackage{makeidx}
168: \usepackage[dvips]{graphicx}
169: \usepackage{epsfig}\usepackage{calc}
170: \newenvironment{choicelist}{\begin{list}{}{\setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.05in}\setlength{\itemsep}{0.022in}\setlength{\parsep}{0in}\setlength{\belowdisplayskip}{0.04in}\setlength{\abovedisplayskip}{0.05in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.04in}}}{\end{list}}
171: \renewenvironment{theindex}{\begin{list}{}{{\vskip 1mm \noindent \large\textbf{Index}} \newline \setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.01in}\setlength{\itemsep}{0.1in}\setlength{\parsep}{-0.02in}\setlength{\belowdisplayskip}{0.01in}\setlength{\abovedisplayskip}{0.01in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.01in}}}{\end{list}}';
172: }
173: return $currentstring;
174: }
175:
176: sub end_html {
177: my ($target,$token) = @_;
178: my $currentstring = '';
179: if ($target eq 'web') {
180: $currentstring = &Apache::lonxml::xmlend();
181: }
182: return $currentstring;
183: }
184:
185: #-- <head> tag
186: sub start_head {
187: my ($target,$token) = @_;
188: my $currentstring = '';
189: if ($target eq 'web') {
190: $currentstring = $token->[4];
191: }
192: return $currentstring;
193: }
194:
195: sub end_head {
196: my ($target,$token) = @_;
197: my $currentstring = '';
198: if ($target eq 'web') {
199: $currentstring = &Apache::lonmenu::registerurl(undef,$target).
200: $token->[2];
201: }
202: return $currentstring;
203: }
204:
205: #-- <map> tag
206: sub start_map {
207: my ($target,$token) = @_;
208: my $currentstring = '';
209: if ($target eq 'web') {
210: $currentstring = $token->[4];
211: }
212: return $currentstring;
213: }
214:
215: sub end_map {
216: my ($target,$token) = @_;
217: my $currentstring = '';
218: if ($target eq 'web') {
219: $currentstring = $token->[2];
220: }
221: return $currentstring;
222: }
223:
224: #-- <select> tag
225: sub start_select {
226: my ($target,$token) = @_;
227: my $currentstring = '';
228: if ($target eq 'web') {
229: $currentstring = $token->[4];
230: }
231: return $currentstring;
232: }
233:
234: sub end_select {
235: my ($target,$token) = @_;
236: my $currentstring = '';
237: if ($target eq 'web') {
238: $currentstring = $token->[2];
239: }
240: return $currentstring;
241: }
242:
243: #-- <option> tag
244: sub start_option {
245: my ($target,$token) = @_;
246: my $currentstring = '';
247: if ($target eq 'web') {
248: $currentstring = $token->[4];
249: }
250: return $currentstring;
251: }
252:
253: sub end_option {
254: my ($target,$token) = @_;
255: my $currentstring = '';
256: if ($target eq 'web') {
257: $currentstring = $token->[2];
258: }
259: return $currentstring;
260: }
261:
262: #-- <input> tag
263: sub start_input {
264: my ($target,$token) = @_;
265: my $currentstring = '';
266: if ($target eq 'web') {
267: $currentstring = $token->[4];
268: }
269: return $currentstring;
270: }
271:
272: sub end_input {
273: my ($target,$token) = @_;
274: my $currentstring = '';
275: if ($target eq 'web') {
276: $currentstring = $token->[2];
277: }
278: return $currentstring;
279: }
280:
281: #-- <textarea> tag
282: sub start_textarea {
283: my ($target,$token) = @_;
284: my $currentstring = '';
285: if ($target eq 'web') {
286: $currentstring = $token->[4];
287: }
288: return $currentstring;
289: }
290:
291: sub end_textarea {
292: my ($target,$token) = @_;
293: my $currentstring = '';
294: if ($target eq 'web') {
295: $currentstring = $token->[2];
296: }
297: return $currentstring;
298: }
299:
300: #-- <form> tag
301: sub start_form {
302: my ($target,$token) = @_;
303: my $currentstring = '';
304: if ($target eq 'web') {
305: $currentstring = $token->[4];
306: }
307: return $currentstring;
308: }
309:
310: sub end_form {
311: my ($target,$token) = @_;
312: my $currentstring = '';
313: if ($target eq 'web') {
314: $currentstring = $token->[2];
315: }
316: return $currentstring;
317: }
318:
319: #-- <title> tag
320: sub start_title {
321: my ($target,$token) = @_;
322: my $currentstring = '';
323: if ($target eq 'web') {
324: $currentstring = $token->[4];
325: } elsif ($target eq 'tex') {
326: $currentstring .= '\keephidden{Title of the document: '
327: }
328: if ($target eq 'meta') {
329: $currentstring='<title>';
330: &start_output();
331: }
332: return $currentstring;
333: }
334:
335: sub end_title {
336: my ($target,$token) = @_;
337: my $currentstring = '';
338: if ($target eq 'web') {
339: $currentstring = $token->[2];
340: } elsif ($target eq 'tex') {
341: $currentstring .= '}';
342: }
343: if ($target eq 'meta') {
344: &end_output();
345: $currentstring='</title>';
346: }
347: return $currentstring;
348: }
349:
350: #-- <meta> tag
351: sub start_meta {
352: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
353: my $currentstring = '';
354: if ($target eq 'web') {
355: my $args='';
356: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
357: if ($args eq '') {
358: &Apache::lonxml::get_all_text("/meta",$parser);
359: } else {
360: $currentstring = $token->[4];
361: }
362: } elsif ($target eq 'meta') {
363: unless (&Apache::lonxml::get_param
364: ('http-equiv',$parstack,$safeeval,undef,1)) {
365: my $name=$token->[2]->{'name'};
366: $name=~tr/A-Z/a-z/;
367: $name=~s/\s/\_/gs;
368: $name=~s/\W//gs;
369: if ($name) {
370: $currentstring='<'.$name;
371: my $display=&Apache::lonxml::get_param
372: ('display',$parstack,$safeeval,undef,1);
373: if ($display) {
374: $display=~s/\"/\'/g;
375: $currentstring.=' display="'.$display.'"';
376: }
377: $currentstring.='>'.
378: &Apache::lonxml::get_param
379: ('content',$parstack,$safeeval,undef,1).
380: '</'.$name.'>';
381: }
382: my $display=&Apache::lonxml::get_param
383: ('display',$parstack,$safeeval,undef,1);
384: if ($display) {
385: $display=&HTML::Entities::encode($display);
386: $currentstring.='<'.$name.'.display>'.$display.
387: '</'.$name.'.display>';
388: }
389: }
390: } elsif ($target eq 'tex') {
391: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
392: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
393: if ((not defined $content) && (not defined $name)) {
394: &Apache::lonxml::startredirection();
395: }
396: }
397: return $currentstring;
398: }
399:
400: sub end_meta {
401: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
402: my $currentstring = '';
403: if ($target eq 'web') {
404: my $args='';
405: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
406: if ($args ne '') {
407: $currentstring = $token->[4];
408: }
409: } elsif ($target eq 'tex') {
410: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
411: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
412: if ((not defined $content) && (not defined $name)) {
413: &Apache::lonxml::endredirection();
414: }
415: }
416: return $currentstring;
417: }
418:
419: # accessrule
420: sub start_accessrule {
421: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
422: my $currentstring = '';
423: my $eff=&Apache::lonxml::get_param
424: ('effect',$parstack,$safeeval,undef,1);
425: my $realm=&Apache::lonxml::get_param
426: ('realm',$parstack,$safeeval,undef,1);
427: my $role=&Apache::lonxml::get_param
428: ('role',$parstack,$safeeval,undef,1);
429: $realm=~s/\s+//g;
430: $realm=~s/\//\_/g;
431: $realm=~s/^\_//;
432: $realm=~s/\W/\;/g;
433: $role=~s/\s+//g;
434: $role=~s/\//\_/g;
435: $role=~s/\W/\;/g;
436: if ($target eq 'web') {
437: my $args='';
438: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
439: if ($args eq '') {
440: &Apache::lonxml::get_all_text("/accessrule",$parser);
441: } else {
442: $currentstring = $token->[4];
443: }
444: }
445: if ($target eq 'meta') {
446: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.'</rule>';
447: }
448: return $currentstring;
449: }
450:
451: sub end_accessrule {
452: my ($target,$token,$tagstack,$parstack,$parser) = @_;
453: my $currentstring = '';
454: if ($target eq 'web') {
455: my $args='';
456: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
457: if ($args ne '') {
458: $currentstring = $token->[4];
459: }
460: }
461: return $currentstring;
462: }
463:
464: #-- <body> tag
465: sub start_body {
466: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
467: my $currentstring = '';
468: if ($target eq 'web') {
469: if ($Apache::lonhomework::parsing_a_problem) {
470: &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
471: return '';
472: }
473: if (!$Apache::lonxml::registered) {
474: $currentstring.='<head>'.
475: &Apache::lonmenu::registerurl(undef,$target).'</head>';
476: }
477: # Accessibility
478: if ($ENV{'browser.imagesuppress'} eq 'on') {
479: delete($token->[2]->{'background'});
480: }
481: if ($ENV{'browser.fontenhance'} eq 'on') {
482: my $style='';
483: foreach my $key (keys(%{$token->[2]})) {
484: if ($key =~ /^style$/i) {
485: $style.=$token->[2]->{$key}.';';
486: delete($token->[2]->{$key});
487: }
488: }
489: $token->[2]->{'style'}=$style.'; font-size: x-large;';
490: }
491: if ($ENV{'browser.blackwhite'} eq 'on') {
492: delete($token->[2]->{'font'});
493: delete($token->[2]->{'link'});
494: delete($token->[2]->{'alink'});
495: delete($token->[2]->{'vlink'});
496: delete($token->[2]->{'bgcolor'});
497: delete($token->[2]->{'background'});
498: }
499: # Overload loads
500: my $onLoad='';
501: foreach my $key (keys(%{$token->[2]})) {
502: if ($key =~ /^onload$/i) {
503: $onLoad.=$token->[2]->{$key}.';';
504: delete($token->[2]->{$key});
505: }
506: }
507: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
508: my $onUnload='';
509: foreach my $key (keys(%{$token->[2]})) {
510: if ($key =~ /^onunload$/i) {
511: $onUnload.=$token->[2]->{$key}.';';
512: delete($token->[2]->{$key});
513: }
514: }
515: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
516: ';'.$onUnload;
517:
518: $currentstring .= '<'.$token->[1];
519: foreach (keys %{$token->[2]}) {
520: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
521: }
522: $currentstring.='>';
523: if ($ENV{'request.state'} ne 'published') {
524: $currentstring.=(<<EDITBUTTON);
525: <form method="post">
526: <input type="submit" name="editmode" value="Edit" />
527: </form>
528: EDITBUTTON
529: } else {
530: $currentstring.=&Apache::lonmenu::menubuttons(undef,$target,1);
531: }
532: } elsif ($target eq 'tex') {
533: $currentstring = '\begin{document}';
534: }
535: return $currentstring;
536: }
537:
538: sub end_body {
539: my ($target,$token) = @_;
540: my $currentstring = '';
541: if ($target eq 'web') {
542: $currentstring = $token->[2];
543: } elsif ($target eq 'tex') {
544: $currentstring = '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';
545: }
546: return $currentstring;
547: }
548:
549: #-- <center> tag
550: sub start_center {
551: my ($target,$token) = @_;
552: my $currentstring = '';
553: if ($target eq 'web') {
554: $currentstring = $token->[4];
555: } elsif ($target eq 'tex') {
556: $currentstring = '\begin{center}';
557: }
558: return $currentstring;
559: }
560:
561: sub end_center {
562: my ($target,$token) = @_;
563: my $currentstring = '';
564: if ($target eq 'web') {
565: $currentstring = $token->[2];
566: } elsif ($target eq 'tex') {
567: $currentstring = '\end{center}';
568: }
569: return $currentstring;
570: }
571:
572: #-- <b> tag
573: sub start_b {
574: my ($target,$token) = @_;
575: my $currentstring = '';
576: if ($target eq 'web') {
577: $currentstring = $token->[4];
578: } elsif ($target eq 'tex') {
579: $currentstring = '\textbf{';
580: }
581: return $currentstring;
582: }
583:
584: sub end_b {
585: my ($target,$token) = @_;
586: my $currentstring = '';
587: if ($target eq 'web') {
588: $currentstring = $token->[2];
589: } elsif ($target eq 'tex') {
590: $currentstring = '}';
591: }
592: return $currentstring;
593: }
594:
595: #-- <strong> tag
596: sub start_strong {
597: my ($target,$token) = @_;
598: my $currentstring = '';
599: if ($target eq 'web') {
600: $currentstring = $token->[4];
601: } elsif ($target eq 'tex') {
602: $currentstring = '\textbf{';
603: }
604: return $currentstring;
605: }
606:
607: sub end_strong {
608: my ($target,$token) = @_;
609: my $currentstring = '';
610: if ($target eq 'web') {
611:
612: $currentstring = $token->[2];
613: } elsif ($target eq 'tex') {
614: $currentstring = '}';
615: }
616: return $currentstring;
617: }
618:
619: #-- <h1> tag
620: sub start_h1 {
621: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
622: my $currentstring = '';
623: if ($target eq 'web') {
624: $currentstring .= $token->[4];
625: } elsif ($target eq 'tex') {
626: my $pre;
627: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
628: if (($align eq 'center') || (not defined $align)) {
629: $pre='\begin{center}';
630: } elsif ($align eq 'left') {
631: $pre='\rlap{';
632: } elsif ($align eq 'right') {
633: $pre=' \hfill \llap{';
634: }
635: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
636: if (not defined $TeXsize) {$TeXsize="large";}
637: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
638: } elsif ($target eq 'meta') {
639: $currentstring='<subject>';
640: &start_output();
641: }
642: return $currentstring;
643: }
644:
645: sub end_h1 {
646: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
647: my $currentstring = '';
648: if ($target eq 'web') {
649: $currentstring .= $token->[2];
650: } elsif ($target eq 'tex') {
651: my $post;
652: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
653: if (($align eq 'center') || (not defined $align)) {
654: $post='\end{center}';
655: } elsif ($align eq 'left') {
656: $post='} \hfill'.'\vskip 0 mm ';
657: } elsif ($align eq 'right') {
658: $post='}'.'\vskip 0 mm ';
659: }
660: $currentstring .= '}}'.$post;
661: } elsif ($target eq 'meta') {
662: &end_output();
663: $currentstring='</subject>';
664: }
665: return $currentstring;
666: }
667:
668: #-- <h2> tag
669: sub start_h2 {
670: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
671: my $currentstring = '';
672: if ($target eq 'web') {
673: $currentstring .= $token->[4];
674: } elsif ($target eq 'tex') {
675: my $pre;
676: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
677: if (($align eq 'center') || (not defined $align)) {
678: $pre='\begin{center}';
679: } elsif ($align eq 'left') {
680: $pre='\rlap{';
681: } elsif ($align eq 'right') {
682: $pre=' \hfill \llap{';
683: }
684: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
685: if (not defined $TeXsize) {$TeXsize="large";}
686: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
687: }
688: return $currentstring;
689: }
690:
691: sub end_h2 {
692: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
693: my $currentstring = '';
694: if ($target eq 'web') {
695: $currentstring .= $token->[2];
696: } elsif ($target eq 'tex') {
697: my $post;
698: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
699: if (($align eq 'center') || (not defined $align)) {
700: $post='\end{center}';
701: } elsif ($align eq 'left') {
702: $post='} \hfill'.'\vskip 0 mm ';
703: } elsif ($align eq 'right') {
704: $post='}'.'\vskip 0 mm ';
705: }
706: $currentstring .= '}}'.$post;
707: }
708: return $currentstring;
709: }
710:
711: #-- <h3> tag
712: sub start_h3 {
713: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
714: my $currentstring = '';
715: if ($target eq 'web') {
716: $currentstring .= $token->[4];
717: } elsif ($target eq 'tex') {
718: my $pre;
719: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
720: if (($align eq 'center') || (not defined $align)) {
721: $pre='\begin{center}';
722: } elsif ($align eq 'left') {
723: $pre='\rlap{';
724: } elsif ($align eq 'right') {
725: $pre=' \hfill \llap{';
726: }
727: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
728: if (not defined $TeXsize) {$TeXsize="large";}
729: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
730: }
731: return $currentstring;
732: }
733:
734: sub end_h3 {
735: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
736: my $currentstring = '';
737: if ($target eq 'web') {
738: $currentstring .= $token->[2];
739: } elsif ($target eq 'tex') {
740: my $post;
741: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
742: if (($align eq 'center') || (not defined $align)) {
743: $post='\end{center}';
744: } elsif ($align eq 'left') {
745: $post='} \hfill'.'\vskip 0 mm ';
746: } elsif ($align eq 'right') {
747: $post='}'.'\vskip 0 mm ';
748: }
749: $currentstring .= '}}'.$post;
750: }
751: return $currentstring;
752: }
753:
754: #-- <h4> tag
755: sub start_h4 {
756: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
757: my $currentstring = '';
758: if ($target eq 'web') {
759: $currentstring .= $token->[4];
760: } elsif ($target eq 'tex') {
761: my $pre;
762: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
763: if (($align eq 'center') || (not defined $align)) {
764: $pre='\begin{center}';
765: } elsif ($align eq 'left') {
766: $pre='\rlap{';
767: } elsif ($align eq 'right') {
768: $pre=' \hfill \llap{';
769: }
770: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
771: if (not defined $TeXsize) {$TeXsize="large";}
772: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
773: }
774: return $currentstring;
775: }
776:
777: sub end_h4 {
778: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
779: my $currentstring = '';
780: if ($target eq 'web') {
781: $currentstring .= $token->[2];
782: } elsif ($target eq 'tex') {
783: my $post;
784: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
785: if (($align eq 'center') || (not defined $align)) {
786: $post='\end{center}';
787: } elsif ($align eq 'left') {
788: $post='} \hfill'.'\vskip 0 mm ';
789: } elsif ($align eq 'right') {
790: $post='}'.'\vskip 0 mm ';
791: }
792: $currentstring .= '}}'.$post;
793: }
794: return $currentstring;
795: }
796:
797: #-- <h5> tag
798: sub start_h5 {
799: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
800: my $currentstring = '';
801: if ($target eq 'web') {
802: $currentstring .= $token->[4];
803: } elsif ($target eq 'tex') {
804: my $pre;
805: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
806: if (($align eq 'center') || (not defined $align)) {
807: $pre='\begin{center}';
808: } elsif ($align eq 'left') {
809: $pre='\rlap{';
810: } elsif ($align eq 'right') {
811: $pre=' \hfill \llap{';
812: }
813: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
814: if (not defined $TeXsize) {$TeXsize="large";}
815: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
816: }
817: return $currentstring;
818: }
819:
820: sub end_h5 {
821: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
822: my $currentstring = '';
823: if ($target eq 'web') {
824: $currentstring .= $token->[2];
825: } elsif ($target eq 'tex') {
826: my $post;
827: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
828: if (($align eq 'center') || (not defined $align)) {
829: $post='\end{center}';
830: } elsif ($align eq 'left') {
831: $post='} \hfill'.'\vskip 0 mm ';
832: } elsif ($align eq 'right') {
833: $post='}'.'\vskip 0 mm ';
834: }
835: $currentstring .= '}}'.$post;
836: }
837: return $currentstring;
838: }
839:
840: #-- <h6> tag
841: sub start_h6 {
842: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
843: my $currentstring = '';
844: if ($target eq 'web') {
845: $currentstring .= $token->[4];
846: } elsif ($target eq 'tex') {
847: my $pre;
848: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
849: if (($align eq 'center') || (not defined $align)) {
850: $pre='\begin{center}';
851: } elsif ($align eq 'left') {
852: $pre='\rlap{';
853: } elsif ($align eq 'right') {
854: $pre=' \hfill \llap{';
855: }
856: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
857: if (not defined $TeXsize) {$TeXsize="large";}
858: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
859: }
860: return $currentstring;
861: }
862:
863: sub end_h6 {
864: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
865: my $currentstring = '';
866: if ($target eq 'web') {
867: $currentstring .= $token->[2];
868: } elsif ($target eq 'tex') {
869: my $post;
870: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
871: if (($align eq 'center') || (not defined $align)) {
872: $post='\end{center}';
873: } elsif ($align eq 'left') {
874: $post='} \hfill'.'\vskip 0 mm ';
875: } elsif ($align eq 'right') {
876: $post='}'.'\vskip 0 mm ';
877: }
878: $currentstring .= '}}'.$post;
879: }
880: return $currentstring;
881: }
882:
883: #--- <cite> tag
884: sub start_cite {
885: my ($target,$token) = @_;
886: my $currentstring = '';
887: if ($target eq 'web') {
888: $currentstring .= $token->[4];
889: } elsif ($target eq 'tex') {
890: $currentstring .= "\\textit{";
891: }
892: return $currentstring;
893: }
894:
895: sub end_cite {
896: my ($target,$token) = @_;
897: my $currentstring = '';
898: if ($target eq 'web') {
899: $currentstring .= $token->[2];
900: } elsif ($target eq 'tex') {
901: $currentstring .= "}";
902: }
903: return $currentstring;
904: }
905:
906: #-- <i> tag
907: sub start_i {
908: my ($target,$token) = @_;
909: my $currentstring = '';
910: if ($target eq 'web') {
911: $currentstring .= $token->[4];
912: } elsif ($target eq 'tex') {
913: $currentstring .= '\textit{';
914: }
915: return $currentstring;
916: }
917:
918: sub end_i {
919: my ($target,$token) = @_;
920: my $currentstring = '';
921: if ($target eq 'web') {
922: $currentstring .= $token->[2];
923: } elsif ($target eq 'tex') {
924: $currentstring .= '}';
925: }
926: return $currentstring;
927: }
928:
929: #-- <address> tag
930: sub start_address {
931: my ($target,$token) = @_;
932: my $currentstring = '';
933: if ($target eq 'web') {
934: $currentstring .= $token->[4];
935: } elsif ($target eq 'tex') {
936: $currentstring .= "\\textit{";
937: }
938: return $currentstring;
939: }
940:
941: sub end_address {
942: my ($target,$token) = @_;
943: my $currentstring = '';
944: if ($target eq 'web') {
945: $currentstring .= $token->[2];
946: } elsif ($target eq 'tex') {
947: $currentstring .= "}";
948: }
949: return $currentstring;
950: }
951:
952: #-- <dfn> tag
953: sub start_dfn {
954: my ($target,$token) = @_;
955: my $currentstring = '';
956: if ($target eq 'web') {
957: $currentstring .= $token->[4];
958: } elsif ($target eq 'tex') {
959: $currentstring .= "\\textit{";
960: }
961: return $currentstring;
962: }
963:
964: sub end_dfn {
965: my ($target,$token) = @_;
966: my $currentstring = '';
967: if ($target eq 'web') {
968: $currentstring .= $token->[2];
969: } elsif ($target eq 'tex') {
970: $currentstring .= "}";
971: }
972: return $currentstring;
973: }
974:
975: #-- <tt> tag
976: sub start_tt {
977: my ($target,$token) = @_;
978: my $currentstring = '';
979: if ($target eq 'web') {
980: $currentstring .= $token->[4];
981: } elsif ($target eq 'tex') {
982: $currentstring .= '\texttt{';
983: }
984: return $currentstring;
985: }
986:
987: sub end_tt {
988: my ($target,$token) = @_;
989: my $currentstring = '';
990: if ($target eq 'web') {
991: $currentstring .= $token->[2];
992: } elsif ($target eq 'tex') {
993: $currentstring .= '}';
994: }
995: return $currentstring;
996: }
997:
998: #-- <kbd> tag
999: sub start_kbd {
1000: my ($target,$token) = @_;
1001: my $currentstring = '';
1002: if ($target eq 'web') {
1003: $currentstring .= $token->[4];
1004: } elsif ($target eq 'tex') {
1005: $currentstring .= "\\texttt";
1006: }
1007: return $currentstring;
1008: }
1009:
1010: sub end_kbd {
1011: my ($target,$token) = @_;
1012: my $currentstring = '';
1013: if ($target eq 'web') {
1014: $currentstring .= $token->[2];
1015: } elsif ($target eq 'tex') {
1016: $currentstring .= "}";
1017: }
1018: return $currentstring;
1019: }
1020:
1021: #-- <code> tag
1022: sub start_code {
1023: my ($target,$token) = @_;
1024: my $currentstring = '';
1025: if ($target eq 'web') {
1026: $currentstring .= $token->[4];
1027: } elsif ($target eq 'tex') {
1028: $currentstring .= '\texttt{';
1029: }
1030: return $currentstring;
1031: }
1032:
1033: sub end_code {
1034: my ($target,$token) = @_;
1035: my $currentstring = '';
1036: if ($target eq 'web') {
1037: $currentstring .= $token->[2];
1038: } elsif ($target eq 'tex') {
1039: $currentstring .= '}';
1040: }
1041: return $currentstring;
1042: }
1043:
1044: #-- <em> tag
1045: sub start_em {
1046: my ($target,$token) = @_;
1047: my $currentstring = '';
1048: if ($target eq 'web') {
1049: $currentstring .= $token->[4];
1050: } elsif ($target eq 'tex') {
1051: $currentstring .= '\emph{';
1052: }
1053: return $currentstring;
1054: }
1055:
1056: sub end_em {
1057: my ($target,$token) = @_;
1058: my $currentstring = '';
1059: if ($target eq 'web') {
1060: $currentstring .= $token->[2];
1061: } elsif ($target eq 'tex') {
1062: $currentstring .= '}';
1063: }
1064: return $currentstring;
1065: }
1066:
1067: #-- <q> tag
1068: sub start_q {
1069: my ($target,$token) = @_;
1070: my $currentstring = '';
1071: if ($target eq 'web') {
1072: $currentstring .= $token->[4];
1073: } elsif ($target eq 'tex') {
1074: $currentstring .= "\\emph{";
1075: }
1076: return $currentstring;
1077: }
1078:
1079: sub end_q {
1080: my ($target,$token) = @_;
1081: my $currentstring = '';
1082: if ($target eq 'web') {
1083: $currentstring .= $token->[2];
1084: } elsif ($target eq 'tex') {
1085: $currentstring .= "}";
1086: }
1087: return $currentstring;
1088: }
1089:
1090: #-- <p> tag
1091: sub start_p {
1092: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1093: my $currentstring = '';
1094: if ($target eq 'web') {
1095: $currentstring .= $token->[4];
1096: } elsif ($target eq 'tex') {
1097: my $signal=1;
1098: foreach my $tag (@$tagstack) {if (lc($tag) eq 'b') {$signal=0;}}
1099: if ($signal) {$currentstring .= '\par ';}
1100: }
1101: return $currentstring;
1102: }
1103:
1104: sub end_p {
1105: my ($target,$token) = @_;
1106: my $currentstring = '';
1107: if ($target eq 'web') {
1108: $currentstring .= $token->[2];
1109: }
1110: return $currentstring;
1111: }
1112:
1113: #-- <br> tag
1114: sub start_br {
1115: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1116: my $currentstring = '';
1117: if ($target eq 'web') {
1118: $currentstring .= $token->[4];
1119: } elsif ($target eq 'tex') {
1120: if ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') {
1121: $currentstring .= '\vskip 0.2 mm ';
1122: }
1123: }
1124: return $currentstring;
1125: }
1126:
1127: sub end_br {
1128: my ($target,$token) = @_;
1129: my $currentstring = '';
1130: if ($target eq 'web') {
1131: $currentstring .= $token->[2];
1132: }
1133: return $currentstring;
1134: }
1135:
1136: #-- <big> tag
1137: sub start_big {
1138: my ($target,$token) = @_;
1139: my $currentstring = '';
1140: if ($target eq 'web') {
1141: $currentstring .= $token->[4];
1142: } elsif ($target eq 'tex') {
1143: $currentstring .= '{\large ';
1144: }
1145: return $currentstring;
1146: }
1147:
1148: sub end_big {
1149: my ($target,$token) = @_;
1150: my $currentstring = '';
1151: if ($target eq 'web') {
1152: $currentstring .= $token->[2];
1153: } elsif ($target eq 'tex') {
1154: $currentstring .= '}';
1155: }
1156: return $currentstring;
1157: }
1158:
1159: #-- <small> tag
1160: sub start_small {
1161: my ($target,$token) = @_;
1162: my $currentstring = '';
1163: if ($target eq 'web') {
1164: $currentstring .= $token->[4];
1165: } elsif ($target eq 'tex') {
1166: $currentstring .= '{\footnotesize ';
1167: }
1168: return $currentstring;
1169: }
1170:
1171: sub end_small {
1172: my ($target,$token) = @_;
1173: my $currentstring = '';
1174: if ($target eq 'web') {
1175: $currentstring .= $token->[2];
1176: } elsif ($target eq 'tex') {
1177: $currentstring .= '}';
1178: }
1179: return $currentstring;
1180: }
1181:
1182: #-- <basefont> tag
1183: sub start_basefont {
1184: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1185: my $currentstring = '';
1186: if ($target eq 'web') {
1187: $currentstring = $token->[4];
1188: } elsif ($target eq 'tex') {
1189: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1190: if (defined $basesize) {
1191: $currentstring = '{\\'.$basesize.' ';
1192: }
1193: }
1194: return $currentstring;
1195: }
1196:
1197: sub end_basefont {
1198: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1199: my $currentstring = '';
1200: if ($target eq 'web') {
1201: $currentstring = $token->[4];
1202: } elsif ($target eq 'tex') {
1203: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1204: if (defined $basesize) {
1205: $currentstring = '}';
1206: }
1207: }
1208: return $currentstring;
1209: }
1210:
1211: #-- <font> tag
1212: sub start_font {
1213: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1214: my $currentstring = '';
1215: if ($target eq 'web') {
1216: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1217: if ($face=~/symbol/i) {
1218: $Apache::lonxml::prevent_entity_encode++;
1219: } else {
1220: if (($ENV{'browser.fontenhance'} eq 'on') ||
1221: ($ENV{'browser.blackwhite'} eq 'on')) { return ''; }
1222: }
1223: $currentstring = $token->[4];
1224: } elsif ($target eq 'tex') {
1225: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1226: if (defined $fontsize) {
1227: $currentstring = '{\\'.$fontsize.' ';
1228: }
1229: }
1230: return $currentstring;
1231: }
1232:
1233: sub end_font {
1234: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1235: my $currentstring = '';
1236: if ($target eq 'web') {
1237: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1238: if ($face=~/symbol/i) {$Apache::lonxml::prevent_entity_encode--;}
1239: $currentstring = $token->[2];
1240: } elsif ($target eq 'tex') {
1241: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1242: if (defined $fontsize) {
1243: $currentstring = '}';
1244: }
1245: }
1246: return $currentstring;
1247: }
1248:
1249: #-- <strike> tag
1250: sub start_strike {
1251: my ($target,$token) = @_;
1252: my $currentstring = '';
1253: if ($target eq 'web') {
1254: $currentstring .= $token->[4];
1255: } elsif ($target eq 'tex') {
1256: &Apache::lonxml::startredirection();
1257: }
1258: return $currentstring;
1259: }
1260:
1261: sub end_strike {
1262: my ($target,$token) = @_;
1263: my $currentstring = '';
1264: if ($target eq 'web') {
1265: $currentstring .= $token->[2];
1266: } elsif ($target eq 'tex') {
1267: $currentstring=&Apache::lonxml::endredirection();
1268: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1269: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1270: $currentstring=~s/(\S)\s*$/$1\}/;
1271: }
1272: return $currentstring;
1273: }
1274:
1275: #-- <s> tag
1276: sub start_s {
1277: my ($target,$token) = @_;
1278: my $currentstring = '';
1279: if ($target eq 'web') {
1280: $currentstring .= $token->[4];
1281: } elsif ($target eq 'tex') {
1282: &Apache::lonxml::startredirection();
1283: }
1284: return $currentstring;
1285: }
1286:
1287: sub end_s {
1288: my ($target,$token) = @_;
1289: my $currentstring = '';
1290: if ($target eq 'web') {
1291: $currentstring .= $token->[2];
1292: } elsif ($target eq 'tex') {
1293: $currentstring=&Apache::lonxml::endredirection();
1294: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1295: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1296: $currentstring=~s/(\S)\s*$/$1\}/;
1297: }
1298: return $currentstring;
1299: }
1300:
1301: #-- <sub> tag
1302: sub start_sub {
1303: my ($target,$token) = @_;
1304: my $currentstring = '';
1305: if ($target eq 'web') {
1306: $currentstring .= $token->[4];
1307: } elsif ($target eq 'tex') {
1308: $currentstring .= "\$_{ ";
1309: }
1310: return $currentstring;
1311: }
1312:
1313: sub end_sub {
1314: my ($target,$token) = @_;
1315: my $currentstring = '';
1316: if ($target eq 'web') {
1317: $currentstring .= $token->[2];
1318: } elsif ($target eq 'tex') {
1319: $currentstring .= " }\$";
1320: }
1321: return $currentstring;
1322: }
1323:
1324: #-- <sup> tag
1325: sub start_sup {
1326: my ($target,$token) = @_;
1327: my $currentstring = '';
1328: if ($target eq 'web') {
1329: $currentstring .= $token->[4];
1330: } elsif ($target eq 'tex') {
1331: $currentstring .= "\$^{ ";
1332: }
1333: return $currentstring;
1334: }
1335:
1336: sub end_sup {
1337: my ($target,$token) = @_;
1338: my $currentstring = '';
1339: if ($target eq 'web') {
1340: $currentstring .= $token->[2];
1341: } elsif ($target eq 'tex') {
1342: $currentstring .= " }\$";
1343: }
1344: return $currentstring;
1345: }
1346:
1347: #-- <hr> tag
1348: sub start_hr {
1349: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1350: my $currentstring = '';
1351: if ($target eq 'web') {
1352: $currentstring .= $token->[4];
1353: } elsif ($target eq 'tex') {
1354: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1355: if (defined $LaTeXwidth) {
1356: if ($LaTeXwidth=~/^%/) {
1357: substr($LaTeXwidth,0,1)='';
1358: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1359: }
1360: } else {
1361: $LaTeXwidth ='0.9\textwidth';
1362: }
1363: my ($pre,$post);
1364: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1365: if (($align eq 'center') || (not defined $align)) {
1366: $pre=''; $post='';
1367: } elsif ($align eq 'left') {
1368: $pre='\rlap{'; $post='} \hfill';
1369: } elsif ($align eq 'right') {
1370: $pre=' \hfill \llap{'; $post='}';
1371: }
1372: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1373: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1374: }
1375: return $currentstring;
1376: }
1377:
1378: sub end_hr {
1379: my ($target,$token) = @_;
1380: my $currentstring = '';
1381: if ($target eq 'web') {
1382: $currentstring .= $token->[2];
1383: }
1384: return $currentstring;
1385: }
1386:
1387: #-- <div> tag
1388: sub start_div {
1389: my ($target,$token) = @_;
1390: my $currentstring = '';
1391: if ($target eq 'web') {
1392: $currentstring .= $token->[4];
1393: }
1394: return $currentstring;
1395: }
1396:
1397: sub end_div {
1398: my ($target,$token) = @_;
1399: my $currentstring = '';
1400: if ($target eq 'web') {
1401: $currentstring .= $token->[2];
1402: }
1403: return $currentstring;
1404: }
1405:
1406: #-- <a> tag
1407: sub start_a {
1408: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1409: my $currentstring = '';
1410: if ($target eq 'web') {
1411: $currentstring .= $token->[4];
1412: } elsif ($target eq 'tex') {
1413: my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1414: my $b=&Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1415: if ($a=~/\S/) {
1416: $a=~s/([^\\])%/$1\\\%/g;
1417: $currentstring .= '\ref{URI: '.$a.'}';
1418: } elsif ($b=~/\S/) {
1419: $currentstring .= '\ref{Anchor: '.$b.'}';
1420: } else {
1421: $currentstring.='';
1422: }
1423: }
1424: return $currentstring;
1425: }
1426:
1427: sub end_a {
1428: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1429: my $currentstring = '';
1430: if ($target eq 'web') {
1431: $currentstring .= $token->[2];
1432: }
1433: return $currentstring;
1434: }
1435:
1436: #-- <li> tag
1437: sub start_li {
1438: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1439: my $currentstring = '';
1440: if ($target eq 'web') {
1441: $currentstring = $token->[4];
1442: } elsif ($target eq 'tex') {
1443: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,1);
1444: if ($type=~/circle/) {
1445: $currentstring .= ' \item[o] ';
1446: } elsif ($type=~/square/) {
1447: $currentstring .= ' \item[$\Box$] ';
1448: } elsif ($type ne '') {
1449: $currentstring .= ' \item['.$type.'] ';
1450: } else {
1451: $currentstring .= ' \item ';
1452: }
1453: }
1454: return $currentstring;
1455: }
1456:
1457: sub end_li {
1458: my ($target,$token) = @_;
1459: my $currentstring = '';
1460: if ($target eq 'web') {
1461: $currentstring = $token->[2];
1462: }
1463: return $currentstring;
1464: }
1465:
1466: #-- <u> tag
1467: sub start_u {
1468: my ($target,$token) = @_;
1469: my $currentstring = '';
1470: if ($target eq 'web') {
1471: $currentstring .= $token->[4];
1472: } elsif ($target eq 'tex') {
1473: &Apache::lonxml::startredirection();
1474: }
1475: return $currentstring;
1476: }
1477:
1478: sub end_u {
1479: my ($target,$token) = @_;
1480: my $currentstring = '';
1481: if ($target eq 'web') {
1482: $currentstring .= $token->[2];
1483: } elsif ($target eq 'tex') {
1484: $currentstring=&Apache::lonxml::endredirection();
1485: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1486: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1487: $currentstring=~s/(\S)\s*$/$1\}/;
1488: }
1489: return $currentstring;
1490: }
1491:
1492: #-- <ul> tag
1493: sub start_ul {
1494: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1495: my $currentstring = '';
1496: if ($target eq 'web') {
1497: $currentstring = $token->[4];
1498: } elsif ($target eq 'tex') {
1499: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1500: if ($TeXtype eq 'disc') {
1501: $currentstring .= ' \renewcommand{\labelitemi}{$\bullet$}
1502: \renewcommand{\labelitemii}{$\bullet$}
1503: \renewcommand{\labelitemiii}{$\bullet$}
1504: \renewcommand{\labelitemiv}{$\bullet$}';
1505: } elsif ($TeXtype eq 'circle') {
1506: $currentstring .= ' \renewcommand{\labelitemi}{$\circ$}
1507: \renewcommand{\labelitemii}{$\circ$}
1508: \renewcommand{\labelitemiii}{$\circ$}
1509: \renewcommand{\labelitemiv}{$\circ$}';
1510: } elsif ($TeXtype eq 'square') {
1511: $currentstring .= ' \renewcommand{\labelitemi}{$\diamond$}
1512: \renewcommand{\labelitemii}{$\diamond$}
1513: \renewcommand{\labelitemiii}{$\diamond$}
1514: \renewcommand{\labelitemiv}{$\diamond$}';
1515: }
1516: $currentstring .= '\begin{itemize}';
1517: }
1518: return $currentstring;
1519: }
1520:
1521: sub end_ul {
1522: my ($target,$token) = @_;
1523: my $currentstring = '';
1524: if ($target eq 'web') {
1525: $currentstring = $token->[2];
1526: } elsif ($target eq 'tex') {
1527: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}
1528: \renewcommand{\labelitemii}{$\bullet$}
1529: \renewcommand{\labelitemiii}{$\bullet$}
1530: \renewcommand{\labelitemiv}{$\bullet$}';
1531: }
1532: return $currentstring;
1533: }
1534:
1535: #-- <menu> tag
1536: sub start_menu {
1537: my ($target,$token) = @_;
1538: my $currentstring = '';
1539: if ($target eq 'web') {
1540: $currentstring = $token->[4];
1541: } elsif ($target eq 'tex') {
1542: $currentstring = " \\begin{itemize} ";
1543: }
1544: return $currentstring;
1545: }
1546:
1547: sub end_menu {
1548: my ($target,$token) = @_;
1549: my $currentstring = '';
1550: if ($target eq 'web') {
1551: $currentstring = $token->[2];
1552: } elsif ($target eq 'tex') {
1553: $currentstring = " \\end{itemize}";
1554: }
1555: return $currentstring;
1556: }
1557:
1558: #-- <dir> tag
1559: sub start_dir {
1560: my ($target,$token) = @_;
1561: my $currentstring = '';
1562: if ($target eq 'web') {
1563: $currentstring = $token->[4];
1564: } elsif ($target eq 'tex') {
1565: $currentstring = " \\begin{itemize} ";
1566: }
1567: return $currentstring;
1568: }
1569:
1570: sub end_dir {
1571: my ($target,$token) = @_;
1572: my $currentstring = '';
1573: if ($target eq 'web') {
1574: $currentstring = $token->[2];
1575: } elsif ($target eq 'tex') {
1576: $currentstring = " \\end{itemize}";
1577: }
1578: return $currentstring;
1579: }
1580:
1581: #-- <ol> tag
1582: sub start_ol {
1583: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1584: my $currentstring = '';
1585: if ($target eq 'web') {
1586: $currentstring = $token->[4];
1587: } elsif ($target eq 'tex') {
1588: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1589: if ($type eq '1') {
1590: $currentstring .= ' \renewcommand{\labelenumi}{\arabic{enumi}.}
1591: \renewcommand{\labelenumii}{\arabic{enumii}.}
1592: \renewcommand{\labelenumiii}{\arabic{enumiii}.}
1593: \renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1594: } elsif ($type eq 'A') {
1595: $currentstring .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}
1596: \renewcommand{\labelenumii}{\Alph{enumii}.}
1597: \renewcommand{\labelenumiii}{\Alph{enumiii}.}
1598: \renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1599: } elsif ($type eq 'a') {
1600: $currentstring .= ' \renewcommand{\labelenumi}{\alph{enumi}.}
1601: \renewcommand{\labelenumii}{\alph{enumii}.}
1602: \renewcommand{\labelenumiii}{\alph{enumiii}.}
1603: \renewcommand{\labelenumiv}{\alph{enumiv}.} ';
1604: } elsif ($type eq 'i') {
1605: $currentstring .= ' \renewcommand{\labelenumi}{\roman{enumi}.}
1606: \renewcommand{\labelenumii}{\roman{enumii}.}
1607: \renewcommand{\labelenumiii}{\roman{enumiii}.}
1608: \renewcommand{\labelenumiv}{\roman{enumiv}.} ';
1609: } elsif ($type eq 'I') {
1610: $currentstring .= ' \renewcommand{\labelenumi}{\Roman{enumi}.}
1611: \renewcommand{\labelenumii}{\Roman{enumii}.}
1612: \renewcommand{\labelenumiii}{\Roman{enumiii}.}
1613: \renewcommand{\labelenumiv}{\Roman{enumiv}.} ';
1614: }
1615: $currentstring .= '\begin{enumerate}';
1616: }
1617: return $currentstring;
1618: }
1619:
1620: sub end_ol {
1621: my ($target,$token) = @_;
1622: my $currentstring = '';
1623: if ($target eq 'web') {
1624: $currentstring = $token->[2];
1625: } elsif ($target eq 'tex') {
1626: $currentstring = '\end{enumerate} \renewcommand{\labelenumi}{\arabic{enumi}.}
1627: \renewcommand{\labelenumii}{\arabic{enumii}.}
1628: \renewcommand{\labelenumiii}{\arabic{enumiii}.}
1629: \renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1630: }
1631: return $currentstring;
1632: }
1633:
1634: #-- <dl> tag
1635: sub start_dl {
1636: my ($target,$token) = @_;
1637: my $currentstring = '';
1638: if ($target eq 'web') {
1639: $currentstring = $token->[4];
1640: } elsif ($target eq 'tex') {
1641: $currentstring = '\begin{description}';
1642: }
1643: return $currentstring;
1644: }
1645:
1646: sub end_dl {
1647: my ($target,$token) = @_;
1648: my $currentstring = '';
1649: if ($target eq 'web') {
1650: $currentstring = $token->[2];
1651: } elsif ($target eq 'tex') {
1652: $currentstring = '\end{description}';
1653: }
1654: return $currentstring;
1655: }
1656:
1657: #-- <dt> tag (end tag optional)
1658: sub start_dt {
1659: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1660: my $currentstring='';
1661: if ($target eq 'web') {
1662: $currentstring = $token->[4];
1663: } elsif ($target eq 'tex') {
1664: &Apache::lonxml::startredirection();;
1665: }
1666: return $currentstring;
1667: }
1668:
1669: sub end_dt {
1670: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1671: my $currentstring = '';
1672: if ($target eq 'web') {
1673: $currentstring = $token->[2];
1674: } elsif ($target eq 'tex') {
1675: my $data=&Apache::lonxml::endredirection();
1676: $data=~s/\\begin{center}//g;
1677: $data=~s/\\end{center}//g;
1678: $currentstring.='\item['.$data.']';
1679: }
1680: return $currentstring;
1681: }
1682:
1683: #-- <dd> tag
1684: sub start_dd {
1685: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1686: my $currentstring = '';
1687: if ($target eq 'web') {
1688: $currentstring = $token->[4];
1689: } elsif ($target eq 'tex') {
1690: if ($$tagstack[-2] eq 'dt') {
1691: $currentstring.='\item['.&Apache::lonxml::endredirection().']';
1692: }
1693: }
1694: return $currentstring;
1695: }
1696:
1697: sub end_dd {
1698: my ($target,$token) = @_;
1699: my $currentstring = '';
1700: if ($target eq 'web') {
1701: $currentstring = $token->[2];
1702: }
1703: return $currentstring;
1704: }
1705:
1706: #-- <table> tag
1707: sub start_table {
1708: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1709: my $textwidth='';
1710: if (not defined @Apache::londefdef::table) {
1711: $textwidth=&recalc($ENV{'form.textwidth'});
1712: $textwidth=~/(\d+\.?\d*)/;
1713: $textwidth=0.95*$1;
1714: } else {
1715: $textwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1716: }
1717: my $currentstring = '';
1718: if ($target eq 'web') {
1719: $currentstring = $token->[4];
1720: } elsif ($target eq 'tex') {
1721: my $aa = {};
1722: push @Apache::londefdef::table, $aa;
1723: $Apache::londefdef::table[-1]{'row_number'} = -1;
1724: #table's width
1725: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1726: if (not defined $TeXwidth) {
1727: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,$safeeval,undef,1);
1728: if ($htmlwidth=~/%/) {
1729: $htmlwidth=~/(\d+)/;
1730: my $value=$1*$textwidth/100;
1731: $Apache::londefdef::table[-1]{'width'}=$value;
1732: } else {
1733: $Apache::londefdef::table[-1]{'width'}=$textwidth;
1734: }
1735: } elsif ($TeXwidth=~/%/) {
1736: $TeXwidth=~/(\d+)/;
1737: my $value=$1*$textwidth/100;
1738: $Apache::londefdef::table[-1]{'width'}=$value;
1739: } else {
1740: $Apache::londefdef::table[-1]{'width'}=$textwidth;
1741: }
1742: #table's border
1743: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval,undef,1);
1744: unless (defined $border) { $border = 0; }
1745: if ($border) {
1746: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
1747: $Apache::londefdef::table[-1]{'vinc'} = '&';
1748: $Apache::londefdef::table[-1]{'vvinc'} = '|';
1749: } else {
1750: $Apache::londefdef::table[-1]{'hinc'} = '';
1751: $Apache::londefdef::table[-1]{'vinc'} = '&';
1752: $Apache::londefdef::table[-1]{'vvinc'} = '';
1753: }
1754: $Apache::londefdef::table[-1]{'output'} = ' \noindent \begin{tabular} ';
1755: $currentstring = '\keephidden{NEW TABLE ENTRY}';
1756: }
1757: return $currentstring;
1758: }
1759:
1760: sub end_table {
1761: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1762: my $currentstring = '';
1763: if ($target eq 'web') {
1764: $currentstring = $token->[2];
1765: } elsif ($target eq 'tex') {
1766: my $inmemory = '';
1767: my $output = '';
1768: #construct header of the table
1769: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
1770: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'counter_columns'};$in++) {
1771: $header_of_table .= $Apache::londefdef::table[-1]{'columns'}[$in].$Apache::londefdef::table[-1]{'vvinc'};
1772: }
1773: $header_of_table .= '}';
1774: #define the length of the table cells
1775: #always starts with TeXwidth (if defined everything else is ignored)
1776: my @length_row_final = split(/,/,$Apache::londefdef::table[-1]{'TeXlengthrow'}[0]);
1777: for (my $in=1;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1778: my @length_row = split(/,/,$Apache::londefdef::table[-1]{'TeXlengthrow'}[$in]);
1779: for (my $jn=0;$jn<=$#length_row;$jn++) {
1780: if ($length_row_final[$jn]<$length_row[$jn]) {$length_row_final[$jn]=$length_row[$jn];}
1781: }
1782: }
1783: #continues trying estimate the width of raw data
1784: my @length_raw_row = split(/,/,$Apache::londefdef::table[-1]{'lengthrow'}[0]);
1785: for (my $in=1;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1786: my @length_row = split(/,/,$Apache::londefdef::table[-1]{'lengthrow'}[$in]);
1787: for (my $jn=0;$jn<=$#length_row;$jn++) {
1788: if ($length_raw_row[$jn]<$length_row[$jn]) {$length_raw_row[$jn]=$length_row[$jn];}
1789: }
1790: }
1791: #comparing of TeXwidth and raw data width
1792: my $available_length=$Apache::londefdef::table[-1]{'width'};
1793: my $needed=0;
1794: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1795: if ($length_row_final[$jn]!=0) {
1796: $available_length=$available_length-$length_row_final[$jn];
1797: $needed++;
1798: }
1799: }
1800: $needed=$#length_row_final-$needed+1;
1801: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1802: if ($length_row_final[$jn]==0) {
1803: if ($length_raw_row[$jn]<$available_length) {
1804: $length_row_final[$jn]=$length_raw_row[$jn];
1805: $available_length=$available_length-$length_raw_row[$jn];
1806: $needed--;
1807: }
1808: }
1809: }
1810: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1811: if ($length_row_final[$jn]==0) {
1812: $length_row_final[$jn]=0.9*$available_length/$needed;
1813: }
1814: }
1815: #fill the table
1816: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1817: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1818: my $substituted=$length_row_final[$jn];
1819: $Apache::londefdef::table[-1]{'rowdata'}[$in]=~s/TOBECHANGEDONNUMBER/$substituted mm/;
1820: }
1821: $output .= $Apache::londefdef::table[-1]{'rowdata'}[$in];
1822: chop $output;
1823: $output .= ' \\\\ ';
1824: }
1825: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$output.$Apache::londefdef::table[-1]{'hinc'}.'\end{tabular}\vskip 0 mm ';
1826: if ($#Apache::londefdef::table > 0) {
1827: my $inmemory = $Apache::londefdef::table[-1]{'output'};
1828: pop @Apache::londefdef::table;
1829: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1830: } else {
1831: $currentstring .= $Apache::londefdef::table[-1]{'output'};
1832: pop @Apache::londefdef::table;
1833: undef @Apache::londefdef::table;
1834: }
1835: }
1836: return $currentstring;
1837: }
1838:
1839: #-- <tr> tag (end tag optional)
1840: sub start_tr {
1841: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1842: my $currentstring = '';
1843: if ($target eq 'web') {
1844: $currentstring = $token->[4];
1845: } elsif ($target eq 'tex') {
1846: $Apache::londefdef::table[-1]{'row_number'}++;
1847: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
1848: if ($alignchar ne '') {
1849: push @ {$Apache::londefdef::table[-1]{'rows'} }, $alignchar;
1850: } else {
1851: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
1852: }
1853: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
1854: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1855: $Apache::londefdef::table[-1]{'TeXlength'} = '';
1856: $Apache::londefdef::table[-1]{'length'} = '';
1857: }
1858: return $currentstring;
1859: }
1860:
1861: sub end_tr {
1862: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1863: my $currentstring = '';
1864: if ($target eq 'web') {
1865: $currentstring = $token->[2];
1866: } elsif ($target eq 'tex') {
1867: if ($Apache::londefdef::TD_redirection) {
1868: &end_td_tex($parstack,$parser,$safeeval);
1869: }
1870: push @{ $Apache::londefdef::table[-1]{'TeXlengthrow'} },$Apache::londefdef::table[-1]{'TeXlength'};
1871: push @{ $Apache::londefdef::table[-1]{'lengthrow'} },$Apache::londefdef::table[-1]{'length'};
1872: }
1873: return $currentstring;
1874: }
1875:
1876: #-- <td> tag (end tag optional)
1877: sub start_td {
1878: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1879: my $currentstring = '';
1880: if ($target eq 'web') {
1881: $currentstring = $token->[4];
1882: } elsif ($target eq 'tex') {
1883: $Apache::londefdef::TD_redirection = 1;
1884: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1885: }
1886: return $currentstring;
1887: }
1888:
1889: sub tag_check {
1890: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1891: my @ar=@$parstack;
1892: for (my $i=$#ar-1;$i>=0;$i--) {
1893: if (lc($$tagstack[$i]) eq $good_tag) {
1894: &start_td_tex($parstack,$parser,$safeeval);
1895: last;
1896: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
1897: splice @ar, $i+1;
1898: &end_td_tex(\@ar,$parser,$safeeval);
1899: &start_td_tex($parstack,$parser,$safeeval);
1900: last;
1901: }
1902: }
1903: return '';
1904: }
1905:
1906: sub start_td_tex {
1907: my ($parstack,$parser,$safeeval) = @_;
1908: my $what_to_push = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
1909: if ($what_to_push eq '') {
1910: $what_to_push = substr($Apache::londefdef::table[-1]{'rows'}[0],0,1);;
1911: }
1912: push @{ $Apache::londefdef::table[-1]{'columns'} }, $what_to_push;
1913: $Apache::londefdef::table[-1]{'counter_columns'}++;
1914: &Apache::lonxml::startredirection();
1915: return '';
1916: }
1917:
1918: sub end_td_tex {
1919: my ($parstack,$parser,$safeeval) = @_;
1920: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
1921: my $data=&Apache::lonxml::endredirection();
1922: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1923: if (defined $TeXwidth) {
1924: my $current_length=&recalc($TeXwidth);
1925: $current_length=~/(\d+)/;
1926: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
1927: $Apache::londefdef::table[-1]{'length'} .= '0,';
1928: } else {
1929: if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
1930: my $current_length=&recalc($1);
1931: $current_length=~/(\d+\.?\d*)/;
1932: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
1933: $Apache::londefdef::table[-1]{'length'} .= '0,';
1934: } else {
1935: $data=~s/^\s+(\S.*)/$1/;
1936: $data=~s/(.*\S)\s+$/$1/;
1937: $data=~s/(\s)+/$1/;
1938: my $current_length=0;
1939: if ($data=~/\\vskip/) {
1940: my $newdata=$data;
1941: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
1942: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
1943: foreach my $elementdata (@newdata) {
1944: $elementdata=~s/^\s+(\S.*)/$1/;
1945: $elementdata=~s/(.*\S)\s+$/$1/;
1946: $elementdata=~s/(\s)+/$1/;
1947: my $lengthnewdata=1.8*length($elementdata);
1948: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1949: }
1950: } else {
1951: $current_length=1.8*length($data);
1952: }
1953: $Apache::londefdef::table[-1]{'length'} .= $current_length.',';
1954: $Apache::londefdef::table[-1]{'TeXlength'} .= '0,';
1955: }
1956: }
1957: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
1958: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
1959: }
1960: @{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{TOBECHANGEDONNUMBER}{'.$data.'} '.$Apache::londefdef::table[-1]{'vinc'};
1961: return'';
1962: }
1963:
1964: sub end_td {
1965: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1966: my $currentstring = '';
1967: if ($target eq 'web') {
1968: $currentstring = $token->[2];
1969: } elsif ($target eq 'tex') {
1970: $Apache::londefdef::TD_redirection =0;
1971: &end_td_tex($parstack,$parser,$safeeval);
1972: }
1973: return $currentstring;
1974: }
1975:
1976: #-- <th> tag (end tag optional)
1977: sub start_th {
1978: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1979: my $currentstring = '';
1980: if ($target eq 'web') {
1981: $currentstring = $token->[4];
1982: } elsif ($target eq 'tex') {
1983: my $what_to_push = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
1984: if ($what_to_push eq '') {
1985: $what_to_push = substr($Apache::londefdef::table[-1]{'rows'}[0],0,1);;
1986: }
1987: push @{ $Apache::londefdef::table[-1]{'columns'} }, $what_to_push;
1988: $Apache::londefdef::table[-1]{'counter_columns'}++;
1989: &Apache::lonxml::startredirection();
1990: }
1991: return $currentstring;
1992: }
1993:
1994: sub end_th {
1995: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1996: my $currentstring = '';
1997: if ($target eq 'web') {
1998: $currentstring = $token->[2];
1999: } elsif ($target eq 'tex') {
2000: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2001: my $data=&Apache::lonxml::endredirection();
2002: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2003: if (defined $TeXwidth) {
2004: my $current_length=&recalc($TeXwidth);
2005: $current_length=~/(\d+)/;
2006: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
2007: $Apache::londefdef::table[-1]{'length'} .= '0,';
2008: } else {
2009: if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2010: my $current_length=&recalc($1);
2011: $current_length=~/(\d+)/;
2012: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
2013: $Apache::londefdef::table[-1]{'length'} .= '0,';
2014: } else {
2015: $data=~/^\s*(\S.*)/;
2016: $data=$1;
2017: $data=~/(.*\S)\s*$/;
2018: $data=$1;
2019: my $current_length=2*length($data);
2020: $Apache::londefdef::table[-1]{'length'} .= $current_length.',';
2021: $Apache::londefdef::table[-1]{'TeXlength'} .= '0,';
2022: }
2023: }
2024: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2025: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2026: }
2027: $data='\textbf{'.$data.'}';
2028: @{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{TOBECHANGEDONNUMBER}{'.$data.'} '.$Apache::londefdef::table[-1]{'vinc'};
2029: }
2030: return $currentstring;
2031: }
2032: #-- <img> tag
2033: sub start_img {
2034: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2035: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2036: undef,1);
2037: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
2038: my $currentstring = '';
2039: my $width_param = '';
2040: my $height_param = '';
2041: my $scaling = .3;
2042: if ($target eq 'web') {
2043: if ($ENV{'browser.imagesuppress'} ne 'on') {
2044: $currentstring.= $token->[4];
2045: } else {
2046: my $alttag= &Apache::lonxml::get_param
2047: ('alt',$parstack,$safeeval,undef,1);
2048: unless ($alttag) {
2049: $alttag=&Apache::lonmeta::alttag
2050: ($Apache::lonxml::pwd[-1],$src);
2051: }
2052: $currentstring.='[IMAGE: '.$alttag.']';
2053: }
2054: } elsif ($target eq 'tex') {
2055: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
2056: &image_replication($src);
2057: #if original gif/jpg/png file exist do following:
2058: if (-e $src) {
2059: #defines the default size of image
2060: my $image = Image::Magick->new;
2061: my $current_figure = $image->Read($src);
2062: $width_param = $image->Get('width') * $scaling;;
2063: $height_param = $image->Get('height') * $scaling;;
2064: undef $image;
2065: #do we have any specified size of the picture?
2066: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval);
2067: my $TeXheight = &Apache::lonxml::get_param('TeXheight',$parstack,$safeeval);
2068: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
2069: undef,1);
2070: if ($TeXwidth ne '') {
2071: if ($TeXwidth=~/(\d+)\s*\%/) {
2072: $width_param = $1*$ENV{'form.textwidth'}/100;
2073: } else {
2074: $width_param = $TeXwidth;
2075: }
2076: } elsif ($TeXheight ne '') {
2077: $width_param = $TeXheight/$height_param*$width_param;
2078: } elsif ($width ne '') {
2079: $width_param = $width*$scaling;
2080: }
2081: if ($width_param > $ENV{'form.textwidth'}) {$width_param =0.95*$ENV{'form.textwidth'}}
2082: my $file;
2083: my $path;
2084: if ($src =~ m!(.*)/([^/]*)$!) {
2085: $file = $2;
2086: $path = $1.'/';
2087: }
2088: my $newsrc = $src;
2089: $newsrc =~ s/\.(gif|jpg|png)$/.eps/i;
2090: $file=~s/\.(gif|jpg|png)$/.eps/i;
2091: #where can we find the picture?
2092: if (-e $newsrc) {
2093: #eps counterpart for image exist
2094: if ($path) {
2095: $currentstring .= '\vskip 1 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
2096: }
2097: } else {
2098: #there is no eps counterpart for image - check for ps one
2099: $newsrc =~ s/\.eps$/\.ps/;
2100: if (-e $newsrc) {
2101: #ps counterpart for image exist
2102: $file =~ s/\.eps$/\.ps/;
2103: if ($path) {
2104: $currentstring .= '\vskip 1 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
2105: }
2106: } else {
2107: #there aren't eps or ps - so create eps
2108: my $temp_file;
2109: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.dat";
2110: $temp_file = Apache::File->new('>>'.$filename);
2111: print $temp_file "$src\n";
2112: $currentstring .= '\vskip 1 mm \graphicspath{{/home/httpd/prtspool/}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
2113: }
2114: }
2115: } else {
2116: #original image file doesn't exist so check the alt attribute
2117: my $alt =
2118: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2119: unless ($alt) {
2120: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2121: }
2122:
2123: if ($alt) {
2124: $currentstring .= ' '.$alt.' ';
2125: } else {
2126: #<allow> tag will care about replication
2127: }
2128: }
2129: }
2130: return $currentstring;
2131: }
2132:
2133: sub end_img {
2134: my ($target,$token) = @_;
2135: my $currentstring = '';
2136: if ($target eq 'web') {
2137: $currentstring = $token->[2];
2138: } elsif ($target eq 'tex') {
2139: $currentstring = '';
2140: }
2141: return $currentstring;
2142: }
2143:
2144: #-- <applet> tag
2145: sub start_applet {
2146: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2147:
2148: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
2149: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$code;
2150:
2151: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2152: undef,1);
2153: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$archive;
2154:
2155: my $currentstring = '';
2156: if ($target eq 'web') {
2157: if ($ENV{'browser.appletsuppress'} ne 'on') {
2158: $currentstring = $token->[4];
2159: } else {
2160: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2161: $safeeval,undef,1);
2162: unless ($alttag) {
2163: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2164: $code);
2165: }
2166: $currentstring='[APPLET: '.$alttag.']';
2167: }
2168: } elsif ($target eq 'tex') {
2169: $currentstring = " \\begin{figure} ";
2170: }
2171: return $currentstring;
2172: }
2173:
2174: sub end_applet {
2175: my ($target,$token) = @_;
2176: my $currentstring = '';
2177: if ($target eq 'web') {
2178: $currentstring = $token->[2];
2179: } elsif ($target eq 'tex') {
2180: $currentstring = " \\end{figure}";
2181: }
2182: return $currentstring;
2183: }
2184:
2185: #-- <embed> tag
2186: sub start_embed {
2187: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2188: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2189: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
2190: my $currentstring = '';
2191: if ($target eq 'web') {
2192: if ($ENV{'browser.embedsuppress'} ne 'on') {
2193: $currentstring = $token->[4];
2194: } else {
2195: my $alttag=&Apache::lonxml::get_param
2196: ('alt',$parstack,$safeeval,undef,1);
2197: unless ($alttag) {
2198: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2199: }
2200: $currentstring='[EMBED: '.$alttag.']';
2201: }
2202: } elsif ($target eq 'tex') {
2203: $currentstring = " \\begin{figure} ";
2204: }
2205: return $currentstring;
2206: }
2207:
2208: sub end_embed {
2209: my ($target,$token) = @_;
2210: my $currentstring = '';
2211: if ($target eq 'web') {
2212: $currentstring = $token->[2];
2213: } elsif ($target eq 'tex') {
2214: $currentstring = " \\end{figure}";
2215: }
2216: return $currentstring;
2217: }
2218:
2219: #-- <param> tag
2220: sub start_param {
2221: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2222: if (&Apache::lonxml::get_param
2223: ('name',$parstack,$safeeval,undef,1)=~/^cabbase$/i) {
2224: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2225: &Apache::lonxml::get_param('value',$parstack,$safeeval,undef,1);
2226: }
2227: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2228: &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2229: my $currentstring = '';
2230: if ($target eq 'web') {
2231: $currentstring = $token->[4];
2232: } elsif ($target eq 'tex') {
2233: $currentstring = " \\begin{figure} ";
2234: }
2235: return $currentstring;
2236: }
2237:
2238: sub end_param {
2239: my ($target,$token) = @_;
2240: my $currentstring = '';
2241: if ($target eq 'web') {
2242: $currentstring = $token->[2];
2243: } elsif ($target eq 'tex') {
2244: $currentstring = " \\end{figure}";
2245: }
2246: return $currentstring;
2247: }
2248:
2249: #-- <allow> tag
2250: sub start_allow {
2251: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2252: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2253: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
2254: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2255: &Apache::lonnet::clutter($src);
2256: &image_replication($src);
2257: my $result;
2258: if ($target eq 'edit') {
2259: $result .=&Apache::edit::tag_start($target,$token);
2260: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
2261: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
2262: } elsif ($target eq 'modified') {
2263: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2264: $safeeval,'src');
2265: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2266: }
2267: return $result;
2268: }
2269:
2270: sub end_allow {
2271: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2272: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
2273: return '';
2274: }
2275:
2276: #-- Frames
2277: sub start_frameset {
2278: my ($target,$token) = @_;
2279: my $currentstring = '';
2280: if ($target eq 'web') {
2281: if (!$Apache::lonxml::registered) {
2282: $currentstring.='<head>'.
2283: &Apache::lonmenu::registerurl(undef,$target).'</head>';
2284: }
2285: my $onLoad='';
2286: foreach my $key (keys(%{$token->[2]})) {
2287: if ($key =~ /^onload$/i) {
2288: $onLoad.=$token->[2]->{$key}.';';
2289: delete($token->[2]->{$key});
2290: }
2291: }
2292: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
2293: my $onUnload='';
2294: foreach my $key (keys(%{$token->[2]})) {
2295: if ($key =~ /^onunload$/i) {
2296: $onUnload.=$token->[2]->{$key}.';';
2297: delete($token->[2]->{$key});
2298: }
2299: }
2300: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
2301: ';'.$onUnload;
2302:
2303: $currentstring .= '<'.$token->[1];
2304: foreach (keys %{$token->[2]}) {
2305: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
2306: }
2307: $currentstring.='>';
2308: }
2309: return $currentstring;
2310: }
2311:
2312: sub end_frameset {
2313: my ($target,$token) = @_;
2314: my $currentstring = '';
2315: if ($target eq 'web') {
2316: $currentstring = $token->[2];
2317: }
2318: return $currentstring;
2319: }
2320:
2321: #-- <xmp>
2322: sub start_xmp {
2323: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2324: my $currentstring = '';
2325: if ($target eq 'web') {
2326: $currentstring .= $token->[4];
2327: } elsif ($target eq 'tex') {
2328: $currentstring .= '\begin{verbatim}';
2329: }
2330: return $currentstring;
2331: }
2332:
2333: sub end_xmp {
2334: my ($target,$token) = @_;
2335: my $currentstring = '';
2336: if ($target eq 'web') {
2337: $currentstring .= $token->[2];
2338: } elsif ($target eq 'tex') {
2339: $currentstring .= '\end{verbatim}';
2340: }
2341: return $currentstring;
2342: }
2343:
2344: #-- <pre>
2345: sub start_pre {
2346: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2347: my $currentstring = '';
2348: if ($target eq 'web') {
2349: $currentstring .= $token->[4];
2350: } elsif ($target eq 'tex') {
2351: $currentstring .= '\begin{verbatim}';
2352: }
2353: return $currentstring;
2354: }
2355:
2356: sub end_pre {
2357: my ($target,$token) = @_;
2358: my $currentstring = '';
2359: if ($target eq 'web') {
2360: $currentstring .= $token->[2];
2361: } elsif ($target eq 'tex') {
2362: $currentstring .= '\end{verbatim}';
2363: }
2364: return $currentstring;
2365: }
2366:
2367: #-- <insert>
2368: sub start_insert {
2369: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2370: my $currentstring = '';
2371: if ($target eq 'web') {
2372: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2373: $currentstring .= '<b>'.$display.'</b>';;
2374: }
2375: return $currentstring;
2376: }
2377:
2378: sub end_insert {
2379: my ($target,$token) = @_;
2380: my $currentstring = '';
2381: if ($target eq 'web') {
2382: $currentstring .= '';
2383: }
2384: return $currentstring;
2385: }
2386:
2387: #-- <externallink>
2388: sub start_externallink {
2389: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2390: my $currentstring = '';
2391: if ($target eq 'web') {
2392: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2393: $currentstring .= '<b>'.$display.'</b>';;
2394: }
2395: return $currentstring;
2396: }
2397:
2398: sub end_externallink {
2399: my ($target,$token) = @_;
2400: my $currentstring = '';
2401: if ($target eq 'web') {
2402: $currentstring .= '';
2403: }
2404: return $currentstring;
2405: }
2406:
2407: #-- <blankspace heigth="">
2408: sub start_blankspace {
2409: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2410: my $currentstring = '';
2411: if ($target eq 'tex') {
2412: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
2413: $currentstring .= '\vskip '.$howmuch.' ';
2414: }
2415: return $currentstring;
2416: }
2417:
2418: sub end_blankspace {
2419: my ($target,$token) = @_;
2420: my $currentstring = '';
2421: if ($target eq 'tex') {
2422: $currentstring .= '';
2423: }
2424: return $currentstring;
2425: }
2426:
2427: #-- <abbr> tag
2428: sub start_abbr {
2429: my ($target,$token) = @_;
2430: my $currentstring = '';
2431: if ($target eq 'web') {
2432: $currentstring = $token->[4];
2433: }
2434: return $currentstring;
2435: }
2436:
2437: sub end_abbr {
2438: my ($target,$token) = @_;
2439: my $currentstring = '';
2440: if ($target eq 'web') {
2441: $currentstring = $token->[2];
2442: }
2443: return $currentstring;
2444: }
2445:
2446: #-- <acronym> tag
2447: sub start_acronym {
2448: my ($target,$token) = @_;
2449: my $currentstring = '';
2450: if ($target eq 'web') {
2451: $currentstring = $token->[4];
2452: }
2453: return $currentstring;
2454: }
2455:
2456: sub end_acronym {
2457: my ($target,$token) = @_;
2458: my $currentstring = '';
2459: if ($target eq 'web') {
2460: $currentstring = $token->[2];
2461: }
2462: return $currentstring;
2463: }
2464:
2465: #-- <area> tag
2466: sub start_area {
2467: my ($target,$token) = @_;
2468: my $currentstring = '';
2469: if ($target eq 'web') {
2470: $currentstring = $token->[4];
2471: }
2472: return $currentstring;
2473: }
2474:
2475: sub end_area {
2476: my ($target,$token) = @_;
2477: my $currentstring = '';
2478: if ($target eq 'web') {
2479: $currentstring = $token->[2];
2480: }
2481: return $currentstring;
2482: }
2483:
2484: #-- <base> tag
2485: sub start_base {
2486: my ($target,$token) = @_;
2487: my $currentstring = '';
2488: if ($target eq 'web') {
2489: $currentstring = $token->[4];
2490: }
2491: return $currentstring;
2492: }
2493:
2494: sub end_base {
2495: my ($target,$token) = @_;
2496: my $currentstring = '';
2497: if ($target eq 'web') {
2498: $currentstring = $token->[2];
2499: }
2500: return $currentstring;
2501: }
2502:
2503: #-- <bdo> tag
2504: sub start_bdo {
2505: my ($target,$token) = @_;
2506: my $currentstring = '';
2507: if ($target eq 'web') {
2508: $currentstring = $token->[4];
2509: }
2510: return $currentstring;
2511: }
2512:
2513: sub end_bdo {
2514: my ($target,$token) = @_;
2515: my $currentstring = '';
2516: if ($target eq 'web') {
2517: $currentstring = $token->[2];
2518: }
2519: return $currentstring;
2520: }
2521:
2522: #-- <bgsound> tag
2523: sub start_bgsound {
2524: my ($target,$token) = @_;
2525: my $currentstring = '';
2526: if ($target eq 'web') {
2527: $currentstring = $token->[4];
2528: }
2529: return $currentstring;
2530: }
2531:
2532: sub end_bgsound {
2533: my ($target,$token) = @_;
2534: my $currentstring = '';
2535: if ($target eq 'web') {
2536: $currentstring = $token->[2];
2537: }
2538: return $currentstring;
2539: }
2540:
2541: #-- <blink> tag
2542: sub start_blink {
2543: my ($target,$token) = @_;
2544: my $currentstring = '';
2545: if ($target eq 'web') {
2546: $currentstring = $token->[4];
2547: }
2548: return $currentstring;
2549: }
2550:
2551: sub end_blink {
2552: my ($target,$token) = @_;
2553: my $currentstring = '';
2554: if ($target eq 'web') {
2555: $currentstring = $token->[2];
2556: }
2557: return $currentstring;
2558: }
2559:
2560: #-- <blockquote> tag
2561: sub start_blockquote {
2562: my ($target,$token) = @_;
2563: my $currentstring = '';
2564: if ($target eq 'web') {
2565: $currentstring = $token->[4];
2566: }
2567: return $currentstring;
2568: }
2569:
2570: sub end_blockquote {
2571: my ($target,$token) = @_;
2572: my $currentstring = '';
2573: if ($target eq 'web') {
2574: $currentstring = $token->[2];
2575: }
2576: return $currentstring;
2577: }
2578:
2579: #-- <button> tag
2580: sub start_button {
2581: my ($target,$token) = @_;
2582: my $currentstring = '';
2583: if ($target eq 'web') {
2584: $currentstring = $token->[4];
2585: }
2586: return $currentstring;
2587: }
2588:
2589: sub end_button {
2590: my ($target,$token) = @_;
2591: my $currentstring = '';
2592: if ($target eq 'web') {
2593: $currentstring = $token->[2];
2594: }
2595: return $currentstring;
2596: }
2597:
2598: #-- <caption> tag
2599: sub start_caption {
2600: my ($target,$token) = @_;
2601: my $currentstring = '';
2602: if ($target eq 'web') {
2603: $currentstring = $token->[4];
2604: }
2605: return $currentstring;
2606: }
2607:
2608: sub end_caption {
2609: my ($target,$token) = @_;
2610: my $currentstring = '';
2611: if ($target eq 'web') {
2612: $currentstring = $token->[2];
2613: }
2614: return $currentstring;
2615: }
2616:
2617: #-- <col> tag
2618: sub start_col {
2619: my ($target,$token) = @_;
2620: my $currentstring = '';
2621: if ($target eq 'web') {
2622: $currentstring = $token->[4];
2623: }
2624: return $currentstring;
2625: }
2626:
2627: sub end_col {
2628: my ($target,$token) = @_;
2629: my $currentstring = '';
2630: if ($target eq 'web') {
2631: $currentstring = $token->[2];
2632: }
2633: return $currentstring;
2634: }
2635:
2636: #-- <colgroup> tag
2637: sub start_colgroup {
2638: my ($target,$token) = @_;
2639: my $currentstring = '';
2640: if ($target eq 'web') {
2641: $currentstring = $token->[4];
2642: }
2643: return $currentstring;
2644: }
2645:
2646: sub end_colgroup {
2647: my ($target,$token) = @_;
2648: my $currentstring = '';
2649: if ($target eq 'web') {
2650: $currentstring = $token->[2];
2651: }
2652: return $currentstring;
2653: }
2654:
2655: #-- <del> tag
2656: sub start_del {
2657: my ($target,$token) = @_;
2658: my $currentstring = '';
2659: if ($target eq 'web') {
2660: $currentstring = $token->[4];
2661: }
2662: return $currentstring;
2663: }
2664:
2665: sub end_del {
2666: my ($target,$token) = @_;
2667: my $currentstring = '';
2668: if ($target eq 'web') {
2669: $currentstring = $token->[2];
2670: }
2671: return $currentstring;
2672: }
2673:
2674: #-- <fieldset> tag
2675: sub start_fieldset {
2676: my ($target,$token) = @_;
2677: my $currentstring = '';
2678: if ($target eq 'web') {
2679: $currentstring = $token->[4];
2680: }
2681: return $currentstring;
2682: }
2683:
2684: sub end_fieldset {
2685: my ($target,$token) = @_;
2686: my $currentstring = '';
2687: if ($target eq 'web') {
2688: $currentstring = $token->[2];
2689: }
2690: return $currentstring;
2691: }
2692:
2693: #-- <frame> tag
2694: sub start_frame {
2695: my ($target,$token) = @_;
2696: my $currentstring = '';
2697: if ($target eq 'web') {
2698: $currentstring = $token->[4];
2699: }
2700: return $currentstring;
2701: }
2702:
2703: sub end_frame {
2704: my ($target,$token) = @_;
2705: my $currentstring = '';
2706: if ($target eq 'web') {
2707: $currentstring = $token->[2];
2708: }
2709: return $currentstring;
2710: }
2711:
2712: #-- <iframe> tag
2713: sub start_iframe {
2714: my ($target,$token) = @_;
2715: my $currentstring = '';
2716: if ($target eq 'web') {
2717: $currentstring = $token->[4];
2718: }
2719: return $currentstring;
2720: }
2721:
2722: sub end_iframe {
2723: my ($target,$token) = @_;
2724: my $currentstring = '';
2725: if ($target eq 'web') {
2726: $currentstring = $token->[2];
2727: }
2728: return $currentstring;
2729: }
2730:
2731: #-- <ins> tag
2732: sub start_ins {
2733: my ($target,$token) = @_;
2734: my $currentstring = '';
2735: if ($target eq 'web') {
2736: $currentstring = $token->[4];
2737: }
2738: return $currentstring;
2739: }
2740:
2741: sub end_ins {
2742: my ($target,$token) = @_;
2743: my $currentstring = '';
2744: if ($target eq 'web') {
2745: $currentstring = $token->[2];
2746: }
2747: return $currentstring;
2748: }
2749:
2750: #-- <isindex> tag
2751: sub start_isindex {
2752: my ($target,$token) = @_;
2753: my $currentstring = '';
2754: if ($target eq 'web') {
2755: $currentstring = $token->[4];
2756: }
2757: return $currentstring;
2758: }
2759:
2760: sub end_isindex {
2761: my ($target,$token) = @_;
2762: my $currentstring = '';
2763: if ($target eq 'web') {
2764: $currentstring = $token->[2];
2765: }
2766: return $currentstring;
2767: }
2768:
2769: #-- <keygen> tag
2770: sub start_keygen {
2771: my ($target,$token) = @_;
2772: my $currentstring = '';
2773: if ($target eq 'web') {
2774: $currentstring = $token->[4];
2775: }
2776: return $currentstring;
2777: }
2778:
2779: sub end_keygen {
2780: my ($target,$token) = @_;
2781: my $currentstring = '';
2782: if ($target eq 'web') {
2783: $currentstring = $token->[2];
2784: }
2785: return $currentstring;
2786: }
2787:
2788: #-- <label> tag
2789: sub start_label {
2790: my ($target,$token) = @_;
2791: my $currentstring = '';
2792: if ($target eq 'web') {
2793: $currentstring = $token->[4];
2794: }
2795: return $currentstring;
2796: }
2797:
2798: sub end_label {
2799: my ($target,$token) = @_;
2800: my $currentstring = '';
2801: if ($target eq 'web') {
2802: $currentstring = $token->[2];
2803: }
2804: return $currentstring;
2805: }
2806:
2807: #-- <layer> tag
2808: sub start_layer {
2809: my ($target,$token) = @_;
2810: my $currentstring = '';
2811: if ($target eq 'web') {
2812: $currentstring = $token->[4];
2813: }
2814: return $currentstring;
2815: }
2816:
2817: sub end_layer {
2818: my ($target,$token) = @_;
2819: my $currentstring = '';
2820: if ($target eq 'web') {
2821: $currentstring = $token->[2];
2822: }
2823: return $currentstring;
2824: }
2825:
2826: #-- <legend> tag
2827: sub start_legend {
2828: my ($target,$token) = @_;
2829: my $currentstring = '';
2830: if ($target eq 'web') {
2831: $currentstring = $token->[4];
2832: }
2833: return $currentstring;
2834: }
2835:
2836: sub end_legend {
2837: my ($target,$token) = @_;
2838: my $currentstring = '';
2839: if ($target eq 'web') {
2840: $currentstring = $token->[2];
2841: }
2842: return $currentstring;
2843: }
2844:
2845: #-- <link> tag
2846: sub start_link {
2847: my ($target,$token) = @_;
2848: my $currentstring = '';
2849: if ($target eq 'web') {
2850: $currentstring = $token->[4];
2851: }
2852: return $currentstring;
2853: }
2854:
2855: sub end_link {
2856: my ($target,$token) = @_;
2857: my $currentstring = '';
2858: if ($target eq 'web') {
2859: $currentstring = $token->[2];
2860: }
2861: return $currentstring;
2862: }
2863:
2864: #-- <marquee> tag
2865: sub start_marquee {
2866: my ($target,$token) = @_;
2867: my $currentstring = '';
2868: if ($target eq 'web') {
2869: $currentstring = $token->[4];
2870: }
2871: return $currentstring;
2872: }
2873:
2874: sub end_marquee {
2875: my ($target,$token) = @_;
2876: my $currentstring = '';
2877: if ($target eq 'web') {
2878: $currentstring = $token->[2];
2879: }
2880: return $currentstring;
2881: }
2882:
2883: #-- <malticol> tag
2884: sub start_malticol {
2885: my ($target,$token) = @_;
2886: my $currentstring = '';
2887: if ($target eq 'web') {
2888: $currentstring = $token->[4];
2889: }
2890: return $currentstring;
2891: }
2892:
2893: sub end_malticol {
2894: my ($target,$token) = @_;
2895: my $currentstring = '';
2896: if ($target eq 'web') {
2897: $currentstring = $token->[2];
2898: }
2899: return $currentstring;
2900: }
2901:
2902: #-- <nobr> tag
2903: sub start_nobr {
2904: my ($target,$token) = @_;
2905: my $currentstring = '';
2906: if ($target eq 'web') {
2907: $currentstring = $token->[4];
2908: }
2909: return $currentstring;
2910: }
2911:
2912: sub end_nobr {
2913: my ($target,$token) = @_;
2914: my $currentstring = '';
2915: if ($target eq 'web') {
2916: $currentstring = $token->[2];
2917: }
2918: return $currentstring;
2919: }
2920:
2921: #-- <noembed> tag
2922: sub start_noembed {
2923: my ($target,$token) = @_;
2924: my $currentstring = '';
2925: if ($target eq 'web') {
2926: $currentstring = $token->[4];
2927: }
2928: return $currentstring;
2929: }
2930:
2931: sub end_noembed {
2932: my ($target,$token) = @_;
2933: my $currentstring = '';
2934: if ($target eq 'web') {
2935: $currentstring = $token->[2];
2936: }
2937: return $currentstring;
2938: }
2939:
2940: #-- <noframes> tag
2941: sub start_noframes {
2942: my ($target,$token) = @_;
2943: my $currentstring = '';
2944: if ($target eq 'web') {
2945: $currentstring = $token->[4];
2946: }
2947: return $currentstring;
2948: }
2949:
2950: sub end_noframes {
2951: my ($target,$token) = @_;
2952: my $currentstring = '';
2953: if ($target eq 'web') {
2954: $currentstring = $token->[2];
2955: }
2956: return $currentstring;
2957: }
2958:
2959: #-- <nolayer> tag
2960: sub start_nolayer {
2961: my ($target,$token) = @_;
2962: my $currentstring = '';
2963: if ($target eq 'web') {
2964: $currentstring = $token->[4];
2965: }
2966: return $currentstring;
2967: }
2968:
2969: sub end_nolayer {
2970: my ($target,$token) = @_;
2971: my $currentstring = '';
2972: if ($target eq 'web') {
2973: $currentstring = $token->[2];
2974: }
2975: return $currentstring;
2976: }
2977:
2978: #-- <noscript> tag
2979: sub start_noscript {
2980: my ($target,$token) = @_;
2981: my $currentstring = '';
2982: if ($target eq 'web') {
2983: $currentstring = $token->[4];
2984: }
2985: return $currentstring;
2986: }
2987:
2988: sub end_noscript {
2989: my ($target,$token) = @_;
2990: my $currentstring = '';
2991: if ($target eq 'web') {
2992: $currentstring = $token->[2];
2993: }
2994: return $currentstring;
2995: }
2996:
2997: #-- <object> tag
2998: sub start_object {
2999: my ($target,$token) = @_;
3000: my $currentstring = '';
3001: if ($target eq 'web') {
3002: $currentstring = $token->[4];
3003: }
3004: return $currentstring;
3005: }
3006:
3007: sub end_object {
3008: my ($target,$token) = @_;
3009: my $currentstring = '';
3010: if ($target eq 'web') {
3011: $currentstring = $token->[2];
3012: }
3013: return $currentstring;
3014: }
3015:
3016: #-- <optgroup> tag
3017: sub start_optgroup {
3018: my ($target,$token) = @_;
3019: my $currentstring = '';
3020: if ($target eq 'web') {
3021: $currentstring = $token->[4];
3022: }
3023: return $currentstring;
3024: }
3025:
3026: sub end_optgroup {
3027: my ($target,$token) = @_;
3028: my $currentstring = '';
3029: if ($target eq 'web') {
3030: $currentstring = $token->[2];
3031: }
3032: return $currentstring;
3033: }
3034:
3035: #-- <samp> tag
3036: sub start_samp {
3037: my ($target,$token) = @_;
3038: my $currentstring = '';
3039: if ($target eq 'web') {
3040: $currentstring = $token->[4];
3041: }
3042: return $currentstring;
3043: }
3044:
3045: sub end_samp {
3046: my ($target,$token) = @_;
3047: my $currentstring = '';
3048: if ($target eq 'web') {
3049: $currentstring = $token->[2];
3050: }
3051: return $currentstring;
3052: }
3053:
3054: #-- <server> tag
3055: sub start_server {
3056: my ($target,$token) = @_;
3057: my $currentstring = '';
3058: if ($target eq 'web') {
3059: $currentstring = $token->[4];
3060: }
3061: return $currentstring;
3062: }
3063:
3064: sub end_server {
3065: my ($target,$token) = @_;
3066: my $currentstring = '';
3067: if ($target eq 'web') {
3068: $currentstring = $token->[2];
3069: }
3070: return $currentstring;
3071: }
3072:
3073: #-- <spacer> tag
3074: sub start_spacer {
3075: my ($target,$token) = @_;
3076: my $currentstring = '';
3077: if ($target eq 'web') {
3078: $currentstring = $token->[4];
3079: }
3080: return $currentstring;
3081: }
3082:
3083: sub end_spacer {
3084: my ($target,$token) = @_;
3085: my $currentstring = '';
3086: if ($target eq 'web') {
3087: $currentstring = $token->[2];
3088: }
3089: return $currentstring;
3090: }
3091:
3092: #-- <span> tag
3093: sub start_span {
3094: my ($target,$token) = @_;
3095: my $currentstring = '';
3096: if ($target eq 'web') {
3097: $currentstring = $token->[4];
3098: }
3099: return $currentstring;
3100: }
3101:
3102: sub end_span {
3103: my ($target,$token) = @_;
3104: my $currentstring = '';
3105: if ($target eq 'web') {
3106: $currentstring = $token->[2];
3107: }
3108: return $currentstring;
3109: }
3110:
3111: #-- <tbody> tag
3112: sub start_tbody {
3113: my ($target,$token) = @_;
3114: my $currentstring = '';
3115: if ($target eq 'web') {
3116: $currentstring = $token->[4];
3117: }
3118: return $currentstring;
3119: }
3120:
3121: sub end_tbody {
3122: my ($target,$token) = @_;
3123: my $currentstring = '';
3124: if ($target eq 'web') {
3125: $currentstring = $token->[2];
3126: }
3127: return $currentstring;
3128: }
3129:
3130: #-- <tfoot> tag (end tag optional)
3131: sub start_tfoot {
3132: my ($target,$token) = @_;
3133: my $currentstring = '';
3134: if ($target eq 'web') {
3135: $currentstring = $token->[4];
3136: }
3137: return $currentstring;
3138: }
3139:
3140: sub end_tfoot {
3141: my ($target,$token) = @_;
3142: my $currentstring = '';
3143: if ($target eq 'web') {
3144: $currentstring = $token->[2];
3145: }
3146: return $currentstring;
3147: }
3148:
3149: #-- <thead> tag (end tag optional)
3150: sub start_thead {
3151: my ($target,$token) = @_;
3152: my $currentstring = '';
3153: if ($target eq 'web') {
3154: $currentstring = $token->[4];
3155: }
3156: return $currentstring;
3157: }
3158:
3159: sub end_thead {
3160: my ($target,$token) = @_;
3161: my $currentstring = '';
3162: if ($target eq 'web') {
3163: $currentstring = $token->[2];
3164: }
3165: return $currentstring;
3166: }
3167:
3168: #-- <var> tag
3169: sub start_var {
3170: my ($target,$token) = @_;
3171: my $currentstring = '';
3172: if ($target eq 'web') {
3173: $currentstring = $token->[4];
3174: } elsif ($target eq 'tex') {
3175: $currentstring = '\textit{';
3176: }
3177: return $currentstring;
3178: }
3179:
3180: sub end_var {
3181: my ($target,$token) = @_;
3182: my $currentstring = '';
3183: if ($target eq 'web') {
3184: $currentstring = $token->[2];
3185: } elsif ($target eq 'tex') {
3186: $currentstring = '}';
3187: }
3188: return $currentstring;
3189: }
3190:
3191: #-- <wbr> tag (end tag forbidden)
3192: sub start_wbr {
3193: my ($target,$token) = @_;
3194: my $currentstring = '';
3195: if ($target eq 'web') {
3196: $currentstring = $token->[4];
3197: }
3198: return $currentstring;
3199: }
3200:
3201: sub end_wbr {
3202: my ($target,$token) = @_;
3203: my $currentstring = '';
3204: if ($target eq 'web') {
3205: $currentstring = $token->[2];
3206: }
3207: return $currentstring;
3208: }
3209:
3210: #-- <hideweboutput> tag
3211: sub start_hideweboutput {
3212: my ($target,$token) = @_;
3213: if ($target eq 'web') {
3214: &Apache::lonxml::startredirection();
3215: }
3216: return '';
3217: }
3218:
3219: sub end_hideweboutput {
3220: my ($target,$token) = @_;
3221: my $currentstring = '';
3222: if ($target eq 'web') {
3223: $currentstring = &Apache::lonxml::endredirection();
3224: }
3225: return '';
3226: }
3227:
3228:
3229: sub image_replication {
3230: my $src = shift;
3231: if (not -e $src) {
3232: #replicates image itself
3233: &Apache::lonnet::repcopy($src);
3234: #replicates eps or ps
3235: my $newsrc = $src;
3236: $newsrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
3237: if (not -e $newsrc) {
3238: if (&Apache::lonnet::repcopy($newsrc) ne 'OK') {
3239: $newsrc =~ s/\.eps$/\.ps/;
3240: &Apache::lonnet::repcopy($newsrc);
3241: }
3242: }
3243: }
3244: return '';
3245: }
3246:
3247: sub recalc {
3248: my $argument = shift;
3249: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
3250: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
3251: my $value=$1;
3252: my $units=$2;
3253: if ($units eq 'cm') {
3254: $value*=10;
3255: } elsif ($units eq 'in') {
3256: $value*=25.4;
3257: } elsif ($units eq 'pc') {
3258: $value*=(25.4*12/72.27);
3259: } elsif ($units eq 'pt') {
3260: $value*=(25.4/72.27);
3261: }
3262: return $value.' mm';
3263: }
3264:
3265: 1;
3266: __END__
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