1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
4: # $Id: londefdef.pm,v 1.176 2003/09/30 19:51:44 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: @Apache::londefdef::description=();
1643: $Apache::londefdef::DD_redirection=0;
1644: $Apache::londefdef::DT_redirection=0;
1645: }
1646: return $currentstring;
1647: }
1648:
1649: sub end_dl {
1650: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1651: my $currentstring = '';
1652: if ($target eq 'web') {
1653: $currentstring = $token->[2];
1654: } elsif ($target eq 'tex') {
1655: if ($Apache::londefdef::DT_redirection) {
1656: my $data=&item_cleanup;
1657: push @Apache::londefdef::description,'\item['.$data.']';
1658: $Apache::londefdef::DT_redirection=0;
1659: } elsif ($Apache::londefdef::DD_redirection) {
1660: $Apache::londefdef::description[-1].=&Apache::lonxml::endredirection();
1661: }
1662: foreach my $element (@Apache::londefdef::description) {
1663: $currentstring.=' '.$element.' ';
1664: }
1665: @Apache::londefdef::description=();
1666: $currentstring.='\end{description}';
1667: }
1668: return $currentstring;
1669: }
1670:
1671: #-- <dt> tag (end tag optional)
1672: sub start_dt {
1673: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1674: my $currentstring='';
1675: if ($target eq 'web') {
1676: $currentstring = $token->[4];
1677: } elsif ($target eq 'tex') {
1678: if ($Apache::londefdef::DT_redirection) {
1679: my $data=&item_cleanup;
1680: push @Apache::londefdef::description,'\item['.$data.']';
1681: $Apache::londefdef::DT_redirection=0;
1682: } elsif ($Apache::londefdef::DD_redirection) {
1683: $Apache::londefdef::description[-1].=&Apache::lonxml::endredirection();
1684: $Apache::londefdef::DD_redirection=0;
1685: }
1686: &Apache::lonxml::startredirection();
1687: $Apache::londefdef::DT_redirection=1;
1688: }
1689: return $currentstring;
1690: }
1691:
1692: sub end_dt {
1693: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1694: my $currentstring = '';
1695: if ($target eq 'web') {
1696: $currentstring = $token->[2];
1697: } elsif ($target eq 'tex') {
1698: my $data=&item_cleanup;
1699: push @Apache::londefdef::description,'\item['.$data.']';
1700: $Apache::londefdef::DT_redirection=0;
1701: }
1702: return $currentstring;
1703: }
1704:
1705: sub item_cleanup {
1706: my $item=&Apache::lonxml::endredirection();
1707: $item=~s/\\begin{center}//g;
1708: $item=~s/\\end{center}//g;
1709: return $item;
1710: }
1711:
1712: #-- <dd> tag
1713: sub start_dd {
1714: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1715: my $currentstring = '';
1716: if ($target eq 'web') {
1717: $currentstring = $token->[4];
1718: } elsif ($target eq 'tex') {
1719: if ($Apache::londefdef::DT_redirection) {
1720: my $data=&item_cleanup;
1721: push @Apache::londefdef::description,'\item['.$data.']';
1722: $Apache::londefdef::DT_redirection=0;
1723: }
1724: $Apache::londefdef::DD_redirection=1;
1725: &Apache::lonxml::startredirection();
1726: }
1727: return $currentstring;
1728: }
1729:
1730: sub end_dd {
1731: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1732: my $currentstring = '';
1733: if ($target eq 'web') {
1734: $currentstring = $token->[2];
1735: } elsif ($target eq 'tex') {
1736: $Apache::londefdef::description[-1].=&Apache::lonxml::endredirection();
1737: $Apache::londefdef::DD_redirection=0;
1738: }
1739: return $currentstring;
1740: }
1741:
1742: #-- <table> tag
1743: sub start_table {
1744: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1745: my $textwidth='';
1746: if (not defined @Apache::londefdef::table) {
1747: $textwidth=&recalc($ENV{'form.textwidth'});
1748: $textwidth=~/(\d+\.?\d*)/;
1749: $textwidth=0.95*$1;
1750: } else {
1751: $textwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1752: }
1753: my $currentstring = '';
1754: if ($target eq 'web') {
1755: $currentstring = $token->[4];
1756: } elsif ($target eq 'tex') {
1757: my $aa = {};
1758: push @Apache::londefdef::table, $aa;
1759: $Apache::londefdef::table[-1]{'row_number'} = -1;
1760: #table's width
1761: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1762: if (not defined $TeXwidth) {
1763: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,$safeeval,undef,1);
1764: if ($htmlwidth=~/%/) {
1765: $htmlwidth=~/(\d+)/;
1766: my $value=$1*$textwidth/100;
1767: $Apache::londefdef::table[-1]{'width'}=$value;
1768: } else {
1769: $Apache::londefdef::table[-1]{'width'}=$textwidth;
1770: }
1771: } elsif ($TeXwidth=~/%/) {
1772: $TeXwidth=~/(\d+)/;
1773: my $value=$1*$textwidth/100;
1774: $Apache::londefdef::table[-1]{'width'}=$value;
1775: } else {
1776: $Apache::londefdef::table[-1]{'width'}=$textwidth;
1777: }
1778: #table's border
1779: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval,undef,1);
1780: unless (defined $border) { $border = 0; }
1781: if ($border) {
1782: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
1783: $Apache::londefdef::table[-1]{'vinc'} = '&';
1784: $Apache::londefdef::table[-1]{'vvinc'} = '|';
1785: } else {
1786: $Apache::londefdef::table[-1]{'hinc'} = '';
1787: $Apache::londefdef::table[-1]{'vinc'} = '&';
1788: $Apache::londefdef::table[-1]{'vvinc'} = '';
1789: }
1790: $Apache::londefdef::table[-1]{'output'} = ' \noindent \begin{tabular} ';
1791: $currentstring = '\keephidden{NEW TABLE ENTRY}';
1792: }
1793: return $currentstring;
1794: }
1795:
1796: sub end_table {
1797: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1798: my $currentstring = '';
1799: if ($target eq 'web') {
1800: $currentstring = $token->[2];
1801: } elsif ($target eq 'tex') {
1802: my $inmemory = '';
1803: my $output = '';
1804: #construct header of the table
1805: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
1806: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'counter_columns'};$in++) {
1807: $header_of_table .= $Apache::londefdef::table[-1]{'columns'}[$in].$Apache::londefdef::table[-1]{'vvinc'};
1808: }
1809: $header_of_table .= '}';
1810: #define the length of the table cells
1811: #always starts with TeXwidth (if defined everything else is ignored)
1812: my @length_row_final = split(/,/,$Apache::londefdef::table[-1]{'TeXlengthrow'}[0]);
1813: for (my $in=1;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1814: my @length_row = split(/,/,$Apache::londefdef::table[-1]{'TeXlengthrow'}[$in]);
1815: for (my $jn=0;$jn<=$#length_row;$jn++) {
1816: if ($length_row_final[$jn]<$length_row[$jn]) {$length_row_final[$jn]=$length_row[$jn];}
1817: }
1818: }
1819: #continues trying estimate the width of raw data
1820: my @length_raw_row = split(/,/,$Apache::londefdef::table[-1]{'lengthrow'}[0]);
1821: for (my $in=1;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1822: my @length_row = split(/,/,$Apache::londefdef::table[-1]{'lengthrow'}[$in]);
1823: for (my $jn=0;$jn<=$#length_row;$jn++) {
1824: if ($length_raw_row[$jn]<$length_row[$jn]) {$length_raw_row[$jn]=$length_row[$jn];}
1825: }
1826: }
1827: #comparing of TeXwidth and raw data width
1828: my $available_length=$Apache::londefdef::table[-1]{'width'};
1829: my $needed=0;
1830: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1831: if ($length_row_final[$jn]!=0) {
1832: $available_length=$available_length-$length_row_final[$jn];
1833: $needed++;
1834: }
1835: }
1836: $needed=$#length_row_final-$needed+1;
1837: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1838: if ($length_row_final[$jn]==0) {
1839: if ($length_raw_row[$jn]<$available_length) {
1840: $length_row_final[$jn]=$length_raw_row[$jn];
1841: $available_length=$available_length-$length_raw_row[$jn];
1842: $needed--;
1843: }
1844: }
1845: }
1846: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1847: if ($length_row_final[$jn]==0) {
1848: $length_row_final[$jn]=0.9*$available_length/$needed;
1849: }
1850: }
1851: #fill the table
1852: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1853: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1854: my $substituted=$length_row_final[$jn];
1855: $Apache::londefdef::table[-1]{'rowdata'}[$in]=~s/TOBECHANGEDONNUMBER/$substituted mm/;
1856: }
1857: $output .= $Apache::londefdef::table[-1]{'rowdata'}[$in];
1858: chop $output;
1859: $output .= ' \\\\ ';
1860: }
1861: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$output.$Apache::londefdef::table[-1]{'hinc'}.'\end{tabular}\vskip 0 mm ';
1862: if ($#Apache::londefdef::table > 0) {
1863: my $inmemory = $Apache::londefdef::table[-1]{'output'};
1864: pop @Apache::londefdef::table;
1865: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1866: } else {
1867: $currentstring .= $Apache::londefdef::table[-1]{'output'};
1868: pop @Apache::londefdef::table;
1869: undef @Apache::londefdef::table;
1870: }
1871: }
1872: return $currentstring;
1873: }
1874:
1875: #-- <tr> tag (end tag optional)
1876: sub start_tr {
1877: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1878: my $currentstring = '';
1879: if ($target eq 'web') {
1880: $currentstring = $token->[4];
1881: } elsif ($target eq 'tex') {
1882: $Apache::londefdef::table[-1]{'row_number'}++;
1883: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
1884: if ($alignchar ne '') {
1885: push @ {$Apache::londefdef::table[-1]{'rows'} }, $alignchar;
1886: } else {
1887: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
1888: }
1889: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
1890: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1891: $Apache::londefdef::table[-1]{'TeXlength'} = '';
1892: $Apache::londefdef::table[-1]{'length'} = '';
1893: }
1894: return $currentstring;
1895: }
1896:
1897: sub end_tr {
1898: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1899: my $currentstring = '';
1900: if ($target eq 'web') {
1901: $currentstring = $token->[2];
1902: } elsif ($target eq 'tex') {
1903: if ($Apache::londefdef::TD_redirection) {
1904: &end_td_tex($parstack,$parser,$safeeval);
1905: }
1906: push @{ $Apache::londefdef::table[-1]{'TeXlengthrow'} },$Apache::londefdef::table[-1]{'TeXlength'};
1907: push @{ $Apache::londefdef::table[-1]{'lengthrow'} },$Apache::londefdef::table[-1]{'length'};
1908: }
1909: return $currentstring;
1910: }
1911:
1912: #-- <td> tag (end tag optional)
1913: sub start_td {
1914: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1915: my $currentstring = '';
1916: if ($target eq 'web') {
1917: $currentstring = $token->[4];
1918: } elsif ($target eq 'tex') {
1919: $Apache::londefdef::TD_redirection = 1;
1920: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1921: }
1922: return $currentstring;
1923: }
1924:
1925: sub tag_check {
1926: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1927: my @ar=@$parstack;
1928: for (my $i=$#ar-1;$i>=0;$i--) {
1929: if (lc($$tagstack[$i]) eq $good_tag) {
1930: &start_td_tex($parstack,$parser,$safeeval);
1931: last;
1932: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
1933: splice @ar, $i+1;
1934: &end_td_tex(\@ar,$parser,$safeeval);
1935: &start_td_tex($parstack,$parser,$safeeval);
1936: last;
1937: }
1938: }
1939: return '';
1940: }
1941:
1942: sub start_td_tex {
1943: my ($parstack,$parser,$safeeval) = @_;
1944: my $what_to_push = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
1945: if ($what_to_push eq '') {
1946: $what_to_push = substr($Apache::londefdef::table[-1]{'rows'}[0],0,1);;
1947: }
1948: push @{ $Apache::londefdef::table[-1]{'columns'} }, $what_to_push;
1949: $Apache::londefdef::table[-1]{'counter_columns'}++;
1950: &Apache::lonxml::startredirection();
1951: return '';
1952: }
1953:
1954: sub end_td_tex {
1955: my ($parstack,$parser,$safeeval) = @_;
1956: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
1957: my $data=&Apache::lonxml::endredirection();
1958: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1959: if (defined $TeXwidth) {
1960: my $current_length=&recalc($TeXwidth);
1961: $current_length=~/(\d+)/;
1962: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
1963: $Apache::londefdef::table[-1]{'length'} .= '0,';
1964: } else {
1965: if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
1966: my $current_length=&recalc($1);
1967: $current_length=~/(\d+\.?\d*)/;
1968: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
1969: $Apache::londefdef::table[-1]{'length'} .= '0,';
1970: } else {
1971: $data=~s/^\s+(\S.*)/$1/;
1972: $data=~s/(.*\S)\s+$/$1/;
1973: $data=~s/(\s)+/$1/;
1974: my $current_length=0;
1975: if ($data=~/\\vskip/) {
1976: my $newdata=$data;
1977: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
1978: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
1979: foreach my $elementdata (@newdata) {
1980: $elementdata=~s/^\s+(\S.*)/$1/;
1981: $elementdata=~s/(.*\S)\s+$/$1/;
1982: $elementdata=~s/(\s)+/$1/;
1983: my $lengthnewdata=1.8*length($elementdata);
1984: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1985: }
1986: } else {
1987: $current_length=1.8*length($data);
1988: }
1989: $Apache::londefdef::table[-1]{'length'} .= $current_length.',';
1990: $Apache::londefdef::table[-1]{'TeXlength'} .= '0,';
1991: }
1992: }
1993: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
1994: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
1995: }
1996: @{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{TOBECHANGEDONNUMBER}{'.$data.'} '.$Apache::londefdef::table[-1]{'vinc'};
1997: return'';
1998: }
1999:
2000: sub end_td {
2001: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2002: my $currentstring = '';
2003: if ($target eq 'web') {
2004: $currentstring = $token->[2];
2005: } elsif ($target eq 'tex') {
2006: $Apache::londefdef::TD_redirection =0;
2007: &end_td_tex($parstack,$parser,$safeeval);
2008: }
2009: return $currentstring;
2010: }
2011:
2012: #-- <th> tag (end tag optional)
2013: sub start_th {
2014: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2015: my $currentstring = '';
2016: if ($target eq 'web') {
2017: $currentstring = $token->[4];
2018: } elsif ($target eq 'tex') {
2019: my $what_to_push = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
2020: if ($what_to_push eq '') {
2021: $what_to_push = substr($Apache::londefdef::table[-1]{'rows'}[0],0,1);;
2022: }
2023: push @{ $Apache::londefdef::table[-1]{'columns'} }, $what_to_push;
2024: $Apache::londefdef::table[-1]{'counter_columns'}++;
2025: &Apache::lonxml::startredirection();
2026: }
2027: return $currentstring;
2028: }
2029:
2030: sub end_th {
2031: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2032: my $currentstring = '';
2033: if ($target eq 'web') {
2034: $currentstring = $token->[2];
2035: } elsif ($target eq 'tex') {
2036: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
2037: my $data=&Apache::lonxml::endredirection();
2038: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
2039: if (defined $TeXwidth) {
2040: my $current_length=&recalc($TeXwidth);
2041: $current_length=~/(\d+)/;
2042: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
2043: $Apache::londefdef::table[-1]{'length'} .= '0,';
2044: } else {
2045: if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2046: my $current_length=&recalc($1);
2047: $current_length=~/(\d+)/;
2048: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
2049: $Apache::londefdef::table[-1]{'length'} .= '0,';
2050: } else {
2051: $data=~/^\s*(\S.*)/;
2052: $data=$1;
2053: $data=~/(.*\S)\s*$/;
2054: $data=$1;
2055: my $current_length=2*length($data);
2056: $Apache::londefdef::table[-1]{'length'} .= $current_length.',';
2057: $Apache::londefdef::table[-1]{'TeXlength'} .= '0,';
2058: }
2059: }
2060: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2061: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2062: }
2063: $data='\textbf{'.$data.'}';
2064: @{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{TOBECHANGEDONNUMBER}{'.$data.'} '.$Apache::londefdef::table[-1]{'vinc'};
2065: }
2066: return $currentstring;
2067: }
2068: #-- <img> tag
2069: sub start_img {
2070: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2071: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2072: undef,1);
2073: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
2074: my $currentstring = '';
2075: my $width_param = '';
2076: my $height_param = '';
2077: my $scaling = .3;
2078: if ($target eq 'web') {
2079: if ($ENV{'browser.imagesuppress'} ne 'on') {
2080: $currentstring.= $token->[4];
2081: } else {
2082: my $alttag= &Apache::lonxml::get_param
2083: ('alt',$parstack,$safeeval,undef,1);
2084: unless ($alttag) {
2085: $alttag=&Apache::lonmeta::alttag
2086: ($Apache::lonxml::pwd[-1],$src);
2087: }
2088: $currentstring.='[IMAGE: '.$alttag.']';
2089: }
2090: } elsif ($target eq 'tex') {
2091: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
2092: &image_replication($src);
2093: #if original gif/jpg/png file exist do following:
2094: if (-e $src) {
2095: #defines the default size of image
2096: my $image = Image::Magick->new;
2097: my $current_figure = $image->Read($src);
2098: $width_param = $image->Get('width') * $scaling;;
2099: $height_param = $image->Get('height') * $scaling;;
2100: undef $image;
2101: #do we have any specified size of the picture?
2102: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval);
2103: my $TeXheight = &Apache::lonxml::get_param('TeXheight',$parstack,$safeeval);
2104: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
2105: undef,1);
2106: if ($TeXwidth ne '') {
2107: if ($TeXwidth=~/(\d+)\s*\%/) {
2108: $width_param = $1*$ENV{'form.textwidth'}/100;
2109: } else {
2110: $width_param = $TeXwidth;
2111: }
2112: } elsif ($TeXheight ne '') {
2113: $width_param = $TeXheight/$height_param*$width_param;
2114: } elsif ($width ne '') {
2115: $width_param = $width*$scaling;
2116: }
2117: if ($width_param > $ENV{'form.textwidth'}) {$width_param =0.95*$ENV{'form.textwidth'}}
2118: my $file;
2119: my $path;
2120: if ($src =~ m!(.*)/([^/]*)$!) {
2121: $file = $2;
2122: $path = $1.'/';
2123: }
2124: my $newsrc = $src;
2125: $newsrc =~ s/\.(gif|jpg|png)$/.eps/i;
2126: $file=~s/\.(gif|jpg|png)$/.eps/i;
2127: #where can we find the picture?
2128: if (-e $newsrc) {
2129: #eps counterpart for image exist
2130: if ($path) {
2131: $currentstring .= '\vskip 1 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
2132: }
2133: } else {
2134: #there is no eps counterpart for image - check for ps one
2135: $newsrc =~ s/\.eps$/\.ps/;
2136: if (-e $newsrc) {
2137: #ps counterpart for image exist
2138: $file =~ s/\.eps$/\.ps/;
2139: if ($path) {
2140: $currentstring .= '\vskip 1 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
2141: }
2142: } else {
2143: #there aren't eps or ps - so create eps
2144: my $temp_file;
2145: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.dat";
2146: $temp_file = Apache::File->new('>>'.$filename);
2147: print $temp_file "$src\n";
2148: $currentstring .= '\vskip 1 mm \graphicspath{{/home/httpd/prtspool/}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
2149: }
2150: }
2151: } else {
2152: #original image file doesn't exist so check the alt attribute
2153: my $alt =
2154: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2155: unless ($alt) {
2156: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2157: }
2158:
2159: if ($alt) {
2160: $currentstring .= ' '.$alt.' ';
2161: } else {
2162: #<allow> tag will care about replication
2163: }
2164: }
2165: }
2166: return $currentstring;
2167: }
2168:
2169: sub end_img {
2170: my ($target,$token) = @_;
2171: my $currentstring = '';
2172: if ($target eq 'web') {
2173: $currentstring = $token->[2];
2174: } elsif ($target eq 'tex') {
2175: $currentstring = '';
2176: }
2177: return $currentstring;
2178: }
2179:
2180: #-- <applet> tag
2181: sub start_applet {
2182: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2183:
2184: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
2185: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$code;
2186:
2187: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2188: undef,1);
2189: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$archive;
2190:
2191: my $currentstring = '';
2192: if ($target eq 'web') {
2193: if ($ENV{'browser.appletsuppress'} ne 'on') {
2194: $currentstring = $token->[4];
2195: } else {
2196: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2197: $safeeval,undef,1);
2198: unless ($alttag) {
2199: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2200: $code);
2201: }
2202: $currentstring='[APPLET: '.$alttag.']';
2203: }
2204: } elsif ($target eq 'tex') {
2205: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
2206: undef,1);
2207: if ($code=~/TrueFalse\.class/) {
2208: $currentstring.='\begin{center} \fbox{There is JAVA applet here.}\end{center}';
2209: }
2210: }
2211: return $currentstring;
2212: }
2213:
2214: sub end_applet {
2215: my ($target,$token) = @_;
2216: my $currentstring = '';
2217: if ($target eq 'web') {
2218: $currentstring = $token->[2];
2219: } elsif ($target eq 'tex') {
2220: }
2221: return $currentstring;
2222: }
2223:
2224: #-- <embed> tag
2225: sub start_embed {
2226: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2227: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2228: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
2229: my $currentstring = '';
2230: if ($target eq 'web') {
2231: if ($ENV{'browser.embedsuppress'} ne 'on') {
2232: $currentstring = $token->[4];
2233: } else {
2234: my $alttag=&Apache::lonxml::get_param
2235: ('alt',$parstack,$safeeval,undef,1);
2236: unless ($alttag) {
2237: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2238: }
2239: $currentstring='[EMBED: '.$alttag.']';
2240: }
2241: } elsif ($target eq 'tex') {
2242: }
2243: return $currentstring;
2244: }
2245:
2246: sub end_embed {
2247: my ($target,$token) = @_;
2248: my $currentstring = '';
2249: if ($target eq 'web') {
2250: $currentstring = $token->[2];
2251: } elsif ($target eq 'tex') {
2252: }
2253: return $currentstring;
2254: }
2255:
2256: #-- <param> tag
2257: sub start_param {
2258: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2259: if (&Apache::lonxml::get_param
2260: ('name',$parstack,$safeeval,undef,1)=~/^cabbase$/i) {
2261: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2262: &Apache::lonxml::get_param('value',$parstack,$safeeval,undef,1);
2263: }
2264: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2265: &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2266: my $currentstring = '';
2267: if ($target eq 'web') {
2268: $currentstring = $token->[4];
2269: } elsif ($target eq 'tex') {
2270: }
2271: return $currentstring;
2272: }
2273:
2274: sub end_param {
2275: my ($target,$token) = @_;
2276: my $currentstring = '';
2277: if ($target eq 'web') {
2278: $currentstring = $token->[2];
2279: } elsif ($target eq 'tex') {
2280: }
2281: return $currentstring;
2282: }
2283:
2284: #-- <allow> tag
2285: sub start_allow {
2286: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2287: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2288: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
2289: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2290: &Apache::lonnet::clutter($src);
2291: &image_replication($src);
2292: my $result;
2293: if ($target eq 'edit') {
2294: $result .=&Apache::edit::tag_start($target,$token);
2295: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
2296: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
2297: } elsif ($target eq 'modified') {
2298: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2299: $safeeval,'src');
2300: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2301: }
2302: return $result;
2303: }
2304:
2305: sub end_allow {
2306: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2307: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
2308: return '';
2309: }
2310:
2311: #-- Frames
2312: sub start_frameset {
2313: my ($target,$token) = @_;
2314: my $currentstring = '';
2315: if ($target eq 'web') {
2316: if (!$Apache::lonxml::registered) {
2317: $currentstring.='<head>'.
2318: &Apache::lonmenu::registerurl(undef,$target).'</head>';
2319: }
2320: my $onLoad='';
2321: foreach my $key (keys(%{$token->[2]})) {
2322: if ($key =~ /^onload$/i) {
2323: $onLoad.=$token->[2]->{$key}.';';
2324: delete($token->[2]->{$key});
2325: }
2326: }
2327: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
2328: my $onUnload='';
2329: foreach my $key (keys(%{$token->[2]})) {
2330: if ($key =~ /^onunload$/i) {
2331: $onUnload.=$token->[2]->{$key}.';';
2332: delete($token->[2]->{$key});
2333: }
2334: }
2335: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
2336: ';'.$onUnload;
2337:
2338: $currentstring .= '<'.$token->[1];
2339: foreach (keys %{$token->[2]}) {
2340: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
2341: }
2342: $currentstring.='>';
2343: }
2344: return $currentstring;
2345: }
2346:
2347: sub end_frameset {
2348: my ($target,$token) = @_;
2349: my $currentstring = '';
2350: if ($target eq 'web') {
2351: $currentstring = $token->[2];
2352: }
2353: return $currentstring;
2354: }
2355:
2356: #-- <xmp>
2357: sub start_xmp {
2358: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2359: my $currentstring = '';
2360: if ($target eq 'web') {
2361: $currentstring .= $token->[4];
2362: } elsif ($target eq 'tex') {
2363: $currentstring .= '\begin{verbatim}';
2364: }
2365: return $currentstring;
2366: }
2367:
2368: sub end_xmp {
2369: my ($target,$token) = @_;
2370: my $currentstring = '';
2371: if ($target eq 'web') {
2372: $currentstring .= $token->[2];
2373: } elsif ($target eq 'tex') {
2374: $currentstring .= '\end{verbatim}';
2375: }
2376: return $currentstring;
2377: }
2378:
2379: #-- <pre>
2380: sub start_pre {
2381: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2382: my $currentstring = '';
2383: if ($target eq 'web') {
2384: $currentstring .= $token->[4];
2385: } elsif ($target eq 'tex') {
2386: $currentstring .= '\begin{verbatim}';
2387: }
2388: return $currentstring;
2389: }
2390:
2391: sub end_pre {
2392: my ($target,$token) = @_;
2393: my $currentstring = '';
2394: if ($target eq 'web') {
2395: $currentstring .= $token->[2];
2396: } elsif ($target eq 'tex') {
2397: $currentstring .= '\end{verbatim}';
2398: }
2399: return $currentstring;
2400: }
2401:
2402: #-- <insert>
2403: sub start_insert {
2404: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2405: my $currentstring = '';
2406: if ($target eq 'web') {
2407: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2408: $currentstring .= '<b>'.$display.'</b>';;
2409: }
2410: return $currentstring;
2411: }
2412:
2413: sub end_insert {
2414: my ($target,$token) = @_;
2415: my $currentstring = '';
2416: if ($target eq 'web') {
2417: $currentstring .= '';
2418: }
2419: return $currentstring;
2420: }
2421:
2422: #-- <externallink>
2423: sub start_externallink {
2424: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2425: my $currentstring = '';
2426: if ($target eq 'web') {
2427: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2428: $currentstring .= '<b>'.$display.'</b>';;
2429: }
2430: return $currentstring;
2431: }
2432:
2433: sub end_externallink {
2434: my ($target,$token) = @_;
2435: my $currentstring = '';
2436: if ($target eq 'web') {
2437: $currentstring .= '';
2438: }
2439: return $currentstring;
2440: }
2441:
2442: #-- <blankspace heigth="">
2443: sub start_blankspace {
2444: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2445: my $currentstring = '';
2446: if ($target eq 'tex') {
2447: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
2448: $currentstring .= '\vskip '.$howmuch.' ';
2449: }
2450: return $currentstring;
2451: }
2452:
2453: sub end_blankspace {
2454: my ($target,$token) = @_;
2455: my $currentstring = '';
2456: if ($target eq 'tex') {
2457: $currentstring .= '';
2458: }
2459: return $currentstring;
2460: }
2461:
2462: #-- <abbr> tag
2463: sub start_abbr {
2464: my ($target,$token) = @_;
2465: my $currentstring = '';
2466: if ($target eq 'web') {
2467: $currentstring = $token->[4];
2468: }
2469: return $currentstring;
2470: }
2471:
2472: sub end_abbr {
2473: my ($target,$token) = @_;
2474: my $currentstring = '';
2475: if ($target eq 'web') {
2476: $currentstring = $token->[2];
2477: }
2478: return $currentstring;
2479: }
2480:
2481: #-- <acronym> tag
2482: sub start_acronym {
2483: my ($target,$token) = @_;
2484: my $currentstring = '';
2485: if ($target eq 'web') {
2486: $currentstring = $token->[4];
2487: }
2488: return $currentstring;
2489: }
2490:
2491: sub end_acronym {
2492: my ($target,$token) = @_;
2493: my $currentstring = '';
2494: if ($target eq 'web') {
2495: $currentstring = $token->[2];
2496: }
2497: return $currentstring;
2498: }
2499:
2500: #-- <area> tag
2501: sub start_area {
2502: my ($target,$token) = @_;
2503: my $currentstring = '';
2504: if ($target eq 'web') {
2505: $currentstring = $token->[4];
2506: }
2507: return $currentstring;
2508: }
2509:
2510: sub end_area {
2511: my ($target,$token) = @_;
2512: my $currentstring = '';
2513: if ($target eq 'web') {
2514: $currentstring = $token->[2];
2515: }
2516: return $currentstring;
2517: }
2518:
2519: #-- <base> tag
2520: sub start_base {
2521: my ($target,$token) = @_;
2522: my $currentstring = '';
2523: if ($target eq 'web') {
2524: $currentstring = $token->[4];
2525: }
2526: return $currentstring;
2527: }
2528:
2529: sub end_base {
2530: my ($target,$token) = @_;
2531: my $currentstring = '';
2532: if ($target eq 'web') {
2533: $currentstring = $token->[2];
2534: }
2535: return $currentstring;
2536: }
2537:
2538: #-- <bdo> tag
2539: sub start_bdo {
2540: my ($target,$token) = @_;
2541: my $currentstring = '';
2542: if ($target eq 'web') {
2543: $currentstring = $token->[4];
2544: }
2545: return $currentstring;
2546: }
2547:
2548: sub end_bdo {
2549: my ($target,$token) = @_;
2550: my $currentstring = '';
2551: if ($target eq 'web') {
2552: $currentstring = $token->[2];
2553: }
2554: return $currentstring;
2555: }
2556:
2557: #-- <bgsound> tag
2558: sub start_bgsound {
2559: my ($target,$token) = @_;
2560: my $currentstring = '';
2561: if ($target eq 'web') {
2562: $currentstring = $token->[4];
2563: }
2564: return $currentstring;
2565: }
2566:
2567: sub end_bgsound {
2568: my ($target,$token) = @_;
2569: my $currentstring = '';
2570: if ($target eq 'web') {
2571: $currentstring = $token->[2];
2572: }
2573: return $currentstring;
2574: }
2575:
2576: #-- <blink> tag
2577: sub start_blink {
2578: my ($target,$token) = @_;
2579: my $currentstring = '';
2580: if ($target eq 'web') {
2581: $currentstring = $token->[4];
2582: }
2583: return $currentstring;
2584: }
2585:
2586: sub end_blink {
2587: my ($target,$token) = @_;
2588: my $currentstring = '';
2589: if ($target eq 'web') {
2590: $currentstring = $token->[2];
2591: }
2592: return $currentstring;
2593: }
2594:
2595: #-- <blockquote> tag
2596: sub start_blockquote {
2597: my ($target,$token) = @_;
2598: my $currentstring = '';
2599: if ($target eq 'web') {
2600: $currentstring = $token->[4];
2601: }
2602: return $currentstring;
2603: }
2604:
2605: sub end_blockquote {
2606: my ($target,$token) = @_;
2607: my $currentstring = '';
2608: if ($target eq 'web') {
2609: $currentstring = $token->[2];
2610: }
2611: return $currentstring;
2612: }
2613:
2614: #-- <button> tag
2615: sub start_button {
2616: my ($target,$token) = @_;
2617: my $currentstring = '';
2618: if ($target eq 'web') {
2619: $currentstring = $token->[4];
2620: }
2621: return $currentstring;
2622: }
2623:
2624: sub end_button {
2625: my ($target,$token) = @_;
2626: my $currentstring = '';
2627: if ($target eq 'web') {
2628: $currentstring = $token->[2];
2629: }
2630: return $currentstring;
2631: }
2632:
2633: #-- <caption> tag
2634: sub start_caption {
2635: my ($target,$token) = @_;
2636: my $currentstring = '';
2637: if ($target eq 'web') {
2638: $currentstring = $token->[4];
2639: }
2640: return $currentstring;
2641: }
2642:
2643: sub end_caption {
2644: my ($target,$token) = @_;
2645: my $currentstring = '';
2646: if ($target eq 'web') {
2647: $currentstring = $token->[2];
2648: }
2649: return $currentstring;
2650: }
2651:
2652: #-- <col> tag
2653: sub start_col {
2654: my ($target,$token) = @_;
2655: my $currentstring = '';
2656: if ($target eq 'web') {
2657: $currentstring = $token->[4];
2658: }
2659: return $currentstring;
2660: }
2661:
2662: sub end_col {
2663: my ($target,$token) = @_;
2664: my $currentstring = '';
2665: if ($target eq 'web') {
2666: $currentstring = $token->[2];
2667: }
2668: return $currentstring;
2669: }
2670:
2671: #-- <colgroup> tag
2672: sub start_colgroup {
2673: my ($target,$token) = @_;
2674: my $currentstring = '';
2675: if ($target eq 'web') {
2676: $currentstring = $token->[4];
2677: }
2678: return $currentstring;
2679: }
2680:
2681: sub end_colgroup {
2682: my ($target,$token) = @_;
2683: my $currentstring = '';
2684: if ($target eq 'web') {
2685: $currentstring = $token->[2];
2686: }
2687: return $currentstring;
2688: }
2689:
2690: #-- <del> tag
2691: sub start_del {
2692: my ($target,$token) = @_;
2693: my $currentstring = '';
2694: if ($target eq 'web') {
2695: $currentstring = $token->[4];
2696: }
2697: return $currentstring;
2698: }
2699:
2700: sub end_del {
2701: my ($target,$token) = @_;
2702: my $currentstring = '';
2703: if ($target eq 'web') {
2704: $currentstring = $token->[2];
2705: }
2706: return $currentstring;
2707: }
2708:
2709: #-- <fieldset> tag
2710: sub start_fieldset {
2711: my ($target,$token) = @_;
2712: my $currentstring = '';
2713: if ($target eq 'web') {
2714: $currentstring = $token->[4];
2715: }
2716: return $currentstring;
2717: }
2718:
2719: sub end_fieldset {
2720: my ($target,$token) = @_;
2721: my $currentstring = '';
2722: if ($target eq 'web') {
2723: $currentstring = $token->[2];
2724: }
2725: return $currentstring;
2726: }
2727:
2728: #-- <frame> tag
2729: sub start_frame {
2730: my ($target,$token) = @_;
2731: my $currentstring = '';
2732: if ($target eq 'web') {
2733: $currentstring = $token->[4];
2734: }
2735: return $currentstring;
2736: }
2737:
2738: sub end_frame {
2739: my ($target,$token) = @_;
2740: my $currentstring = '';
2741: if ($target eq 'web') {
2742: $currentstring = $token->[2];
2743: }
2744: return $currentstring;
2745: }
2746:
2747: #-- <iframe> tag
2748: sub start_iframe {
2749: my ($target,$token) = @_;
2750: my $currentstring = '';
2751: if ($target eq 'web') {
2752: $currentstring = $token->[4];
2753: }
2754: return $currentstring;
2755: }
2756:
2757: sub end_iframe {
2758: my ($target,$token) = @_;
2759: my $currentstring = '';
2760: if ($target eq 'web') {
2761: $currentstring = $token->[2];
2762: }
2763: return $currentstring;
2764: }
2765:
2766: #-- <ins> tag
2767: sub start_ins {
2768: my ($target,$token) = @_;
2769: my $currentstring = '';
2770: if ($target eq 'web') {
2771: $currentstring = $token->[4];
2772: }
2773: return $currentstring;
2774: }
2775:
2776: sub end_ins {
2777: my ($target,$token) = @_;
2778: my $currentstring = '';
2779: if ($target eq 'web') {
2780: $currentstring = $token->[2];
2781: }
2782: return $currentstring;
2783: }
2784:
2785: #-- <isindex> tag
2786: sub start_isindex {
2787: my ($target,$token) = @_;
2788: my $currentstring = '';
2789: if ($target eq 'web') {
2790: $currentstring = $token->[4];
2791: }
2792: return $currentstring;
2793: }
2794:
2795: sub end_isindex {
2796: my ($target,$token) = @_;
2797: my $currentstring = '';
2798: if ($target eq 'web') {
2799: $currentstring = $token->[2];
2800: }
2801: return $currentstring;
2802: }
2803:
2804: #-- <keygen> tag
2805: sub start_keygen {
2806: my ($target,$token) = @_;
2807: my $currentstring = '';
2808: if ($target eq 'web') {
2809: $currentstring = $token->[4];
2810: }
2811: return $currentstring;
2812: }
2813:
2814: sub end_keygen {
2815: my ($target,$token) = @_;
2816: my $currentstring = '';
2817: if ($target eq 'web') {
2818: $currentstring = $token->[2];
2819: }
2820: return $currentstring;
2821: }
2822:
2823: #-- <label> tag
2824: sub start_label {
2825: my ($target,$token) = @_;
2826: my $currentstring = '';
2827: if ($target eq 'web') {
2828: $currentstring = $token->[4];
2829: }
2830: return $currentstring;
2831: }
2832:
2833: sub end_label {
2834: my ($target,$token) = @_;
2835: my $currentstring = '';
2836: if ($target eq 'web') {
2837: $currentstring = $token->[2];
2838: }
2839: return $currentstring;
2840: }
2841:
2842: #-- <layer> tag
2843: sub start_layer {
2844: my ($target,$token) = @_;
2845: my $currentstring = '';
2846: if ($target eq 'web') {
2847: $currentstring = $token->[4];
2848: }
2849: return $currentstring;
2850: }
2851:
2852: sub end_layer {
2853: my ($target,$token) = @_;
2854: my $currentstring = '';
2855: if ($target eq 'web') {
2856: $currentstring = $token->[2];
2857: }
2858: return $currentstring;
2859: }
2860:
2861: #-- <legend> tag
2862: sub start_legend {
2863: my ($target,$token) = @_;
2864: my $currentstring = '';
2865: if ($target eq 'web') {
2866: $currentstring = $token->[4];
2867: }
2868: return $currentstring;
2869: }
2870:
2871: sub end_legend {
2872: my ($target,$token) = @_;
2873: my $currentstring = '';
2874: if ($target eq 'web') {
2875: $currentstring = $token->[2];
2876: }
2877: return $currentstring;
2878: }
2879:
2880: #-- <link> tag
2881: sub start_link {
2882: my ($target,$token) = @_;
2883: my $currentstring = '';
2884: if ($target eq 'web') {
2885: $currentstring = $token->[4];
2886: }
2887: return $currentstring;
2888: }
2889:
2890: sub end_link {
2891: my ($target,$token) = @_;
2892: my $currentstring = '';
2893: if ($target eq 'web') {
2894: $currentstring = $token->[2];
2895: }
2896: return $currentstring;
2897: }
2898:
2899: #-- <marquee> tag
2900: sub start_marquee {
2901: my ($target,$token) = @_;
2902: my $currentstring = '';
2903: if ($target eq 'web') {
2904: $currentstring = $token->[4];
2905: }
2906: return $currentstring;
2907: }
2908:
2909: sub end_marquee {
2910: my ($target,$token) = @_;
2911: my $currentstring = '';
2912: if ($target eq 'web') {
2913: $currentstring = $token->[2];
2914: }
2915: return $currentstring;
2916: }
2917:
2918: #-- <malticol> tag
2919: sub start_malticol {
2920: my ($target,$token) = @_;
2921: my $currentstring = '';
2922: if ($target eq 'web') {
2923: $currentstring = $token->[4];
2924: }
2925: return $currentstring;
2926: }
2927:
2928: sub end_malticol {
2929: my ($target,$token) = @_;
2930: my $currentstring = '';
2931: if ($target eq 'web') {
2932: $currentstring = $token->[2];
2933: }
2934: return $currentstring;
2935: }
2936:
2937: #-- <nobr> tag
2938: sub start_nobr {
2939: my ($target,$token) = @_;
2940: my $currentstring = '';
2941: if ($target eq 'web') {
2942: $currentstring = $token->[4];
2943: }
2944: return $currentstring;
2945: }
2946:
2947: sub end_nobr {
2948: my ($target,$token) = @_;
2949: my $currentstring = '';
2950: if ($target eq 'web') {
2951: $currentstring = $token->[2];
2952: }
2953: return $currentstring;
2954: }
2955:
2956: #-- <noembed> tag
2957: sub start_noembed {
2958: my ($target,$token) = @_;
2959: my $currentstring = '';
2960: if ($target eq 'web') {
2961: $currentstring = $token->[4];
2962: }
2963: return $currentstring;
2964: }
2965:
2966: sub end_noembed {
2967: my ($target,$token) = @_;
2968: my $currentstring = '';
2969: if ($target eq 'web') {
2970: $currentstring = $token->[2];
2971: }
2972: return $currentstring;
2973: }
2974:
2975: #-- <noframes> tag
2976: sub start_noframes {
2977: my ($target,$token) = @_;
2978: my $currentstring = '';
2979: if ($target eq 'web') {
2980: $currentstring = $token->[4];
2981: }
2982: return $currentstring;
2983: }
2984:
2985: sub end_noframes {
2986: my ($target,$token) = @_;
2987: my $currentstring = '';
2988: if ($target eq 'web') {
2989: $currentstring = $token->[2];
2990: }
2991: return $currentstring;
2992: }
2993:
2994: #-- <nolayer> tag
2995: sub start_nolayer {
2996: my ($target,$token) = @_;
2997: my $currentstring = '';
2998: if ($target eq 'web') {
2999: $currentstring = $token->[4];
3000: }
3001: return $currentstring;
3002: }
3003:
3004: sub end_nolayer {
3005: my ($target,$token) = @_;
3006: my $currentstring = '';
3007: if ($target eq 'web') {
3008: $currentstring = $token->[2];
3009: }
3010: return $currentstring;
3011: }
3012:
3013: #-- <noscript> tag
3014: sub start_noscript {
3015: my ($target,$token) = @_;
3016: my $currentstring = '';
3017: if ($target eq 'web') {
3018: $currentstring = $token->[4];
3019: }
3020: return $currentstring;
3021: }
3022:
3023: sub end_noscript {
3024: my ($target,$token) = @_;
3025: my $currentstring = '';
3026: if ($target eq 'web') {
3027: $currentstring = $token->[2];
3028: }
3029: return $currentstring;
3030: }
3031:
3032: #-- <object> tag
3033: sub start_object {
3034: my ($target,$token) = @_;
3035: my $currentstring = '';
3036: if ($target eq 'web') {
3037: $currentstring = $token->[4];
3038: }
3039: return $currentstring;
3040: }
3041:
3042: sub end_object {
3043: my ($target,$token) = @_;
3044: my $currentstring = '';
3045: if ($target eq 'web') {
3046: $currentstring = $token->[2];
3047: }
3048: return $currentstring;
3049: }
3050:
3051: #-- <optgroup> tag
3052: sub start_optgroup {
3053: my ($target,$token) = @_;
3054: my $currentstring = '';
3055: if ($target eq 'web') {
3056: $currentstring = $token->[4];
3057: }
3058: return $currentstring;
3059: }
3060:
3061: sub end_optgroup {
3062: my ($target,$token) = @_;
3063: my $currentstring = '';
3064: if ($target eq 'web') {
3065: $currentstring = $token->[2];
3066: }
3067: return $currentstring;
3068: }
3069:
3070: #-- <samp> tag
3071: sub start_samp {
3072: my ($target,$token) = @_;
3073: my $currentstring = '';
3074: if ($target eq 'web') {
3075: $currentstring = $token->[4];
3076: }
3077: return $currentstring;
3078: }
3079:
3080: sub end_samp {
3081: my ($target,$token) = @_;
3082: my $currentstring = '';
3083: if ($target eq 'web') {
3084: $currentstring = $token->[2];
3085: }
3086: return $currentstring;
3087: }
3088:
3089: #-- <server> tag
3090: sub start_server {
3091: my ($target,$token) = @_;
3092: my $currentstring = '';
3093: if ($target eq 'web') {
3094: $currentstring = $token->[4];
3095: }
3096: return $currentstring;
3097: }
3098:
3099: sub end_server {
3100: my ($target,$token) = @_;
3101: my $currentstring = '';
3102: if ($target eq 'web') {
3103: $currentstring = $token->[2];
3104: }
3105: return $currentstring;
3106: }
3107:
3108: #-- <spacer> tag
3109: sub start_spacer {
3110: my ($target,$token) = @_;
3111: my $currentstring = '';
3112: if ($target eq 'web') {
3113: $currentstring = $token->[4];
3114: }
3115: return $currentstring;
3116: }
3117:
3118: sub end_spacer {
3119: my ($target,$token) = @_;
3120: my $currentstring = '';
3121: if ($target eq 'web') {
3122: $currentstring = $token->[2];
3123: }
3124: return $currentstring;
3125: }
3126:
3127: #-- <span> tag
3128: sub start_span {
3129: my ($target,$token) = @_;
3130: my $currentstring = '';
3131: if ($target eq 'web') {
3132: $currentstring = $token->[4];
3133: }
3134: return $currentstring;
3135: }
3136:
3137: sub end_span {
3138: my ($target,$token) = @_;
3139: my $currentstring = '';
3140: if ($target eq 'web') {
3141: $currentstring = $token->[2];
3142: }
3143: return $currentstring;
3144: }
3145:
3146: #-- <tbody> tag
3147: sub start_tbody {
3148: my ($target,$token) = @_;
3149: my $currentstring = '';
3150: if ($target eq 'web') {
3151: $currentstring = $token->[4];
3152: }
3153: return $currentstring;
3154: }
3155:
3156: sub end_tbody {
3157: my ($target,$token) = @_;
3158: my $currentstring = '';
3159: if ($target eq 'web') {
3160: $currentstring = $token->[2];
3161: }
3162: return $currentstring;
3163: }
3164:
3165: #-- <tfoot> tag (end tag optional)
3166: sub start_tfoot {
3167: my ($target,$token) = @_;
3168: my $currentstring = '';
3169: if ($target eq 'web') {
3170: $currentstring = $token->[4];
3171: }
3172: return $currentstring;
3173: }
3174:
3175: sub end_tfoot {
3176: my ($target,$token) = @_;
3177: my $currentstring = '';
3178: if ($target eq 'web') {
3179: $currentstring = $token->[2];
3180: }
3181: return $currentstring;
3182: }
3183:
3184: #-- <thead> tag (end tag optional)
3185: sub start_thead {
3186: my ($target,$token) = @_;
3187: my $currentstring = '';
3188: if ($target eq 'web') {
3189: $currentstring = $token->[4];
3190: }
3191: return $currentstring;
3192: }
3193:
3194: sub end_thead {
3195: my ($target,$token) = @_;
3196: my $currentstring = '';
3197: if ($target eq 'web') {
3198: $currentstring = $token->[2];
3199: }
3200: return $currentstring;
3201: }
3202:
3203: #-- <var> tag
3204: sub start_var {
3205: my ($target,$token) = @_;
3206: my $currentstring = '';
3207: if ($target eq 'web') {
3208: $currentstring = $token->[4];
3209: } elsif ($target eq 'tex') {
3210: $currentstring = '\textit{';
3211: }
3212: return $currentstring;
3213: }
3214:
3215: sub end_var {
3216: my ($target,$token) = @_;
3217: my $currentstring = '';
3218: if ($target eq 'web') {
3219: $currentstring = $token->[2];
3220: } elsif ($target eq 'tex') {
3221: $currentstring = '}';
3222: }
3223: return $currentstring;
3224: }
3225:
3226: #-- <wbr> tag (end tag forbidden)
3227: sub start_wbr {
3228: my ($target,$token) = @_;
3229: my $currentstring = '';
3230: if ($target eq 'web') {
3231: $currentstring = $token->[4];
3232: }
3233: return $currentstring;
3234: }
3235:
3236: sub end_wbr {
3237: my ($target,$token) = @_;
3238: my $currentstring = '';
3239: if ($target eq 'web') {
3240: $currentstring = $token->[2];
3241: }
3242: return $currentstring;
3243: }
3244:
3245: #-- <hideweboutput> tag
3246: sub start_hideweboutput {
3247: my ($target,$token) = @_;
3248: if ($target eq 'web') {
3249: &Apache::lonxml::startredirection();
3250: }
3251: return '';
3252: }
3253:
3254: sub end_hideweboutput {
3255: my ($target,$token) = @_;
3256: my $currentstring = '';
3257: if ($target eq 'web') {
3258: $currentstring = &Apache::lonxml::endredirection();
3259: }
3260: return '';
3261: }
3262:
3263:
3264: sub image_replication {
3265: my $src = shift;
3266: if (not -e $src) {
3267: #replicates image itself
3268: &Apache::lonnet::repcopy($src);
3269: #replicates eps or ps
3270: my $newsrc = $src;
3271: $newsrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
3272: if (not -e $newsrc) {
3273: if (&Apache::lonnet::repcopy($newsrc) ne 'OK') {
3274: $newsrc =~ s/\.eps$/\.ps/;
3275: &Apache::lonnet::repcopy($newsrc);
3276: }
3277: }
3278: }
3279: return '';
3280: }
3281:
3282: sub recalc {
3283: my $argument = shift;
3284: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
3285: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
3286: my $value=$1;
3287: my $units=$2;
3288: if ($units eq 'cm') {
3289: $value*=10;
3290: } elsif ($units eq 'in') {
3291: $value*=25.4;
3292: } elsif ($units eq 'pc') {
3293: $value*=(25.4*12/72.27);
3294: } elsif ($units eq 'pt') {
3295: $value*=(25.4/72.27);
3296: }
3297: return $value.' mm';
3298: }
3299:
3300: 1;
3301: __END__
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