1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
4: # $Id: londefdef.pm,v 1.168 2003/08/26 21:31:19 albertel Exp $
5: #
6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
20: #
21: # You should have received a copy of the GNU General Public License
22: # along with LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
26: #
27: # http://www.lon-capa.org/
28: ## Copyright for TtHfunc and TtMfunc by Ian Hutchinson.
29: # TtHfunc and TtMfunc (the "Code") may be compiled and linked into
30: # binary executable programs or libraries distributed by the
31: # Michigan State University (the "Licensee"), but any binaries so
32: # distributed are hereby licensed only for use in the context
33: # of a program or computational system for which the Licensee is the
34: # primary author or distributor, and which performs substantial
35: # additional tasks beyond the translation of (La)TeX into HTML.
36: # The C source of the Code may not be distributed by the Licensee
37: # to any other parties under any circumstances.
38: #
39: #
40: # last modified 06/26/00 by Alexander Sakharuk
41: # 11/6,11/30,02/01/01,5/4 Gerd Kortemeyer
42: # 01/18 Alex Sakharuk
43:
44: package Apache::londefdef;
45:
46: use Apache::lonnet();
47: use strict;
48: use Apache::lonxml;
49: use Apache::File();
50: use Image::Magick;
51: use Apache::lonmenu();
52: use Apache::lonmeta();
53:
54: $Apache::londefdef::TD_redirection=0;
55:
56: BEGIN {
57:
58: &Apache::lonxml::register('Apache::londefdef',('a','abbr','acronym','accessrule','address','allow','applet','area','b','base','basefont','bgo','bgsound','big','blink','blockquote','blankspace','body','br','button','caption','center','cite','code','col','colgroup','dd','del','dfn','dir','div','dl','dt','em','embed','externallink','fieldset','font','form','frame','frameset','h1','h2','h3','h4','h5','h6','head','hr','html','i','iframe','img','input','ins','insert','isindex','kbd','keygen','label','layer','legend','li','link','m','map','marquee','menu','meta','multicol','nobr','noembed','noframes','nolayer','noscript','object','ol','optgroup','option','output','p','param','pre','q','s','samp','select','server','small','spacer','span','strike','strong','sub','sup','table','tbody','td','textarea','tfoot','th','thead','title','tr','tt','tthoption','u','ul','var','wbr','hideweboutput'));
59:
60: }
61:
62: #======================= TAG SUBROUTINES =====================
63: #-- <output>
64: sub start_output {
65: my ($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=$$parstack[$#$parstack]; }
406: if ($args ne '') {
407: $currentstring = $token->[4];
408: }
409: } elsif ($target eq 'tex') {
410: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
411: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
412: if ((not defined $content) && (not defined $name)) {
413: &Apache::lonxml::startredirection();
414: }
415: }
416: return $currentstring;
417: }
418:
419: # accessrule
420: sub start_accessrule {
421: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
422: my $currentstring = '';
423: my $eff=&Apache::lonxml::get_param
424: ('effect',$parstack,$safeeval,undef,1);
425: my $realm=&Apache::lonxml::get_param
426: ('realm',$parstack,$safeeval,undef,1);
427: my $role=&Apache::lonxml::get_param
428: ('role',$parstack,$safeeval,undef,1);
429: $realm=~s/\s+//g;
430: $realm=~s/\//\_/g;
431: $realm=~s/^\_//;
432: $realm=~s/\W/\;/g;
433: $role=~s/\s+//g;
434: $role=~s/\//\_/g;
435: $role=~s/\W/\;/g;
436: if ($target eq 'web') {
437: my $args='';
438: if ( $#$parstack > -1 ) { $args=$$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::lonxml::registered) {
470: $currentstring.='<head>'.
471: &Apache::lonmenu::registerurl(undef,$target).'</head>';
472: }
473: # Accessibility
474: if ($ENV{'browser.imagesuppress'} eq 'on') {
475: delete($token->[2]->{'background'});
476: }
477: if ($ENV{'browser.fontenhance'} eq 'on') {
478: my $style='';
479: foreach my $key (keys(%{$token->[2]})) {
480: if ($key =~ /^style$/i) {
481: $style.=$token->[2]->{$key}.';';
482: delete($token->[2]->{$key});
483: }
484: }
485: $token->[2]->{'style'}=$style.'; font-size: x-large;';
486: }
487: if ($ENV{'browser.blackwhite'} eq 'on') {
488: delete($token->[2]->{'font'});
489: delete($token->[2]->{'link'});
490: delete($token->[2]->{'alink'});
491: delete($token->[2]->{'vlink'});
492: delete($token->[2]->{'bgcolor'});
493: delete($token->[2]->{'background'});
494: }
495: # Overload loads
496: my $onLoad='';
497: foreach my $key (keys(%{$token->[2]})) {
498: if ($key =~ /^onload$/i) {
499: $onLoad.=$token->[2]->{$key}.';';
500: delete($token->[2]->{$key});
501: }
502: }
503: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
504: my $onUnload='';
505: foreach my $key (keys(%{$token->[2]})) {
506: if ($key =~ /^onunload$/i) {
507: $onUnload.=$token->[2]->{$key}.';';
508: delete($token->[2]->{$key});
509: }
510: }
511: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
512: ';'.$onUnload;
513:
514: $currentstring .= '<'.$token->[1];
515: foreach (keys %{$token->[2]}) {
516: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
517: }
518: $currentstring.='>';
519: if ($ENV{'request.state'} ne 'published') {
520: $currentstring.=(<<EDITBUTTON);
521: <form method="post">
522: <input type="submit" name="editmode" value="Edit" />
523: </form>
524: EDITBUTTON
525: } else {
526: $currentstring.=&Apache::lonmenu::menubuttons(undef,$target,1);
527: }
528: } elsif ($target eq 'tex') {
529: $currentstring = '\begin{document}';
530: }
531: return $currentstring;
532: }
533:
534: sub end_body {
535: my ($target,$token) = @_;
536: my $currentstring = '';
537: if ($target eq 'web') {
538: $currentstring = $token->[2];
539: } elsif ($target eq 'tex') {
540: $currentstring = '\end{document}';
541: }
542: return $currentstring;
543: }
544:
545: #-- <center> tag
546: sub start_center {
547: my ($target,$token) = @_;
548: my $currentstring = '';
549: if ($target eq 'web') {
550: $currentstring = $token->[4];
551: } elsif ($target eq 'tex') {
552: $currentstring = '\begin{center}';
553: }
554: return $currentstring;
555: }
556:
557: sub end_center {
558: my ($target,$token) = @_;
559: my $currentstring = '';
560: if ($target eq 'web') {
561: $currentstring = $token->[2];
562: } elsif ($target eq 'tex') {
563: $currentstring = '\end{center}';
564: }
565: return $currentstring;
566: }
567:
568: #-- <b> tag
569: sub start_b {
570: my ($target,$token) = @_;
571: my $currentstring = '';
572: if ($target eq 'web') {
573: $currentstring = $token->[4];
574: } elsif ($target eq 'tex') {
575: $currentstring = '\textbf{';
576: }
577: return $currentstring;
578: }
579:
580: sub end_b {
581: my ($target,$token) = @_;
582: my $currentstring = '';
583: if ($target eq 'web') {
584: $currentstring = $token->[2];
585: } elsif ($target eq 'tex') {
586: $currentstring = '}';
587: }
588: return $currentstring;
589: }
590:
591: #-- <strong> tag
592: sub start_strong {
593: my ($target,$token) = @_;
594: my $currentstring = '';
595: if ($target eq 'web') {
596: $currentstring = $token->[4];
597: } elsif ($target eq 'tex') {
598: $currentstring = '\textbf{';
599: }
600: return $currentstring;
601: }
602:
603: sub end_strong {
604: my ($target,$token) = @_;
605: my $currentstring = '';
606: if ($target eq 'web') {
607:
608: $currentstring = $token->[2];
609: } elsif ($target eq 'tex') {
610: $currentstring = '}';
611: }
612: return $currentstring;
613: }
614:
615: #-- <h1> tag
616: sub start_h1 {
617: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
618: my $currentstring = '';
619: if ($target eq 'web') {
620: $currentstring .= $token->[4];
621: } elsif ($target eq 'tex') {
622: my $pre;
623: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
624: if (($align eq 'center') || (not defined $align)) {
625: $pre='\begin{center}';
626: } elsif ($align eq 'left') {
627: $pre='\rlap{';
628: } elsif ($align eq 'right') {
629: $pre=' \hfill \llap{';
630: }
631: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
632: if (not defined $TeXsize) {$TeXsize="large";}
633: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
634: } elsif ($target eq 'meta') {
635: $currentstring='<subject>';
636: &start_output();
637: }
638: return $currentstring;
639: }
640:
641: sub end_h1 {
642: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
643: my $currentstring = '';
644: if ($target eq 'web') {
645: $currentstring .= $token->[2];
646: } elsif ($target eq 'tex') {
647: my $post;
648: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
649: if (($align eq 'center') || (not defined $align)) {
650: $post='\end{center}';
651: } elsif ($align eq 'left') {
652: $post='} \hfill'.'\vskip 0 mm ';
653: } elsif ($align eq 'right') {
654: $post='}'.'\vskip 0 mm ';
655: }
656: $currentstring .= '}}'.$post;
657: } elsif ($target eq 'meta') {
658: &end_output();
659: $currentstring='</subject>';
660: }
661: return $currentstring;
662: }
663:
664: #-- <h2> tag
665: sub start_h2 {
666: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
667: my $currentstring = '';
668: if ($target eq 'web') {
669: $currentstring .= $token->[4];
670: } elsif ($target eq 'tex') {
671: my $pre;
672: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
673: if (($align eq 'center') || (not defined $align)) {
674: $pre='\begin{center}';
675: } elsif ($align eq 'left') {
676: $pre='\rlap{';
677: } elsif ($align eq 'right') {
678: $pre=' \hfill \llap{';
679: }
680: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
681: if (not defined $TeXsize) {$TeXsize="large";}
682: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
683: }
684: return $currentstring;
685: }
686:
687: sub end_h2 {
688: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
689: my $currentstring = '';
690: if ($target eq 'web') {
691: $currentstring .= $token->[2];
692: } elsif ($target eq 'tex') {
693: my $post;
694: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
695: if (($align eq 'center') || (not defined $align)) {
696: $post='\end{center}';
697: } elsif ($align eq 'left') {
698: $post='} \hfill'.'\vskip 0 mm ';
699: } elsif ($align eq 'right') {
700: $post='}'.'\vskip 0 mm ';
701: }
702: $currentstring .= '}}'.$post;
703: }
704: return $currentstring;
705: }
706:
707: #-- <h3> tag
708: sub start_h3 {
709: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
710: my $currentstring = '';
711: if ($target eq 'web') {
712: $currentstring .= $token->[4];
713: } elsif ($target eq 'tex') {
714: my $pre;
715: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
716: if (($align eq 'center') || (not defined $align)) {
717: $pre='\begin{center}';
718: } elsif ($align eq 'left') {
719: $pre='\rlap{';
720: } elsif ($align eq 'right') {
721: $pre=' \hfill \llap{';
722: }
723: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
724: if (not defined $TeXsize) {$TeXsize="large";}
725: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
726: }
727: return $currentstring;
728: }
729:
730: sub end_h3 {
731: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
732: my $currentstring = '';
733: if ($target eq 'web') {
734: $currentstring .= $token->[2];
735: } elsif ($target eq 'tex') {
736: my $post;
737: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
738: if (($align eq 'center') || (not defined $align)) {
739: $post='\end{center}';
740: } elsif ($align eq 'left') {
741: $post='} \hfill'.'\vskip 0 mm ';
742: } elsif ($align eq 'right') {
743: $post='}'.'\vskip 0 mm ';
744: }
745: $currentstring .= '}}'.$post;
746: }
747: return $currentstring;
748: }
749:
750: #-- <h4> tag
751: sub start_h4 {
752: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
753: my $currentstring = '';
754: if ($target eq 'web') {
755: $currentstring .= $token->[4];
756: } elsif ($target eq 'tex') {
757: my $pre;
758: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
759: if (($align eq 'center') || (not defined $align)) {
760: $pre='\begin{center}';
761: } elsif ($align eq 'left') {
762: $pre='\rlap{';
763: } elsif ($align eq 'right') {
764: $pre=' \hfill \llap{';
765: }
766: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
767: if (not defined $TeXsize) {$TeXsize="large";}
768: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
769: }
770: return $currentstring;
771: }
772:
773: sub end_h4 {
774: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
775: my $currentstring = '';
776: if ($target eq 'web') {
777: $currentstring .= $token->[2];
778: } elsif ($target eq 'tex') {
779: my $post;
780: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
781: if (($align eq 'center') || (not defined $align)) {
782: $post='\end{center}';
783: } elsif ($align eq 'left') {
784: $post='} \hfill'.'\vskip 0 mm ';
785: } elsif ($align eq 'right') {
786: $post='}'.'\vskip 0 mm ';
787: }
788: $currentstring .= '}}'.$post;
789: }
790: return $currentstring;
791: }
792:
793: #-- <h5> tag
794: sub start_h5 {
795: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
796: my $currentstring = '';
797: if ($target eq 'web') {
798: $currentstring .= $token->[4];
799: } elsif ($target eq 'tex') {
800: my $pre;
801: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
802: if (($align eq 'center') || (not defined $align)) {
803: $pre='\begin{center}';
804: } elsif ($align eq 'left') {
805: $pre='\rlap{';
806: } elsif ($align eq 'right') {
807: $pre=' \hfill \llap{';
808: }
809: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
810: if (not defined $TeXsize) {$TeXsize="large";}
811: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
812: }
813: return $currentstring;
814: }
815:
816: sub end_h5 {
817: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
818: my $currentstring = '';
819: if ($target eq 'web') {
820: $currentstring .= $token->[2];
821: } elsif ($target eq 'tex') {
822: my $post;
823: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
824: if (($align eq 'center') || (not defined $align)) {
825: $post='\end{center}';
826: } elsif ($align eq 'left') {
827: $post='} \hfill'.'\vskip 0 mm ';
828: } elsif ($align eq 'right') {
829: $post='}'.'\vskip 0 mm ';
830: }
831: $currentstring .= '}}'.$post;
832: }
833: return $currentstring;
834: }
835:
836: #-- <h6> tag
837: sub start_h6 {
838: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
839: my $currentstring = '';
840: if ($target eq 'web') {
841: $currentstring .= $token->[4];
842: } elsif ($target eq 'tex') {
843: my $pre;
844: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
845: if (($align eq 'center') || (not defined $align)) {
846: $pre='\begin{center}';
847: } elsif ($align eq 'left') {
848: $pre='\rlap{';
849: } elsif ($align eq 'right') {
850: $pre=' \hfill \llap{';
851: }
852: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
853: if (not defined $TeXsize) {$TeXsize="large";}
854: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
855: }
856: return $currentstring;
857: }
858:
859: sub end_h6 {
860: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
861: my $currentstring = '';
862: if ($target eq 'web') {
863: $currentstring .= $token->[2];
864: } elsif ($target eq 'tex') {
865: my $post;
866: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
867: if (($align eq 'center') || (not defined $align)) {
868: $post='\end{center}';
869: } elsif ($align eq 'left') {
870: $post='} \hfill'.'\vskip 0 mm ';
871: } elsif ($align eq 'right') {
872: $post='}'.'\vskip 0 mm ';
873: }
874: $currentstring .= '}}'.$post;
875: }
876: return $currentstring;
877: }
878:
879: #--- <cite> tag
880: sub start_cite {
881: my ($target,$token) = @_;
882: my $currentstring = '';
883: if ($target eq 'web') {
884: $currentstring .= $token->[4];
885: } elsif ($target eq 'tex') {
886: $currentstring .= "\\textit{";
887: }
888: return $currentstring;
889: }
890:
891: sub end_cite {
892: my ($target,$token) = @_;
893: my $currentstring = '';
894: if ($target eq 'web') {
895: $currentstring .= $token->[2];
896: } elsif ($target eq 'tex') {
897: $currentstring .= "}";
898: }
899: return $currentstring;
900: }
901:
902: #-- <i> tag
903: sub start_i {
904: my ($target,$token) = @_;
905: my $currentstring = '';
906: if ($target eq 'web') {
907: $currentstring .= $token->[4];
908: } elsif ($target eq 'tex') {
909: $currentstring .= '\textit{';
910: }
911: return $currentstring;
912: }
913:
914: sub end_i {
915: my ($target,$token) = @_;
916: my $currentstring = '';
917: if ($target eq 'web') {
918: $currentstring .= $token->[2];
919: } elsif ($target eq 'tex') {
920: $currentstring .= '}';
921: }
922: return $currentstring;
923: }
924:
925: #-- <address> tag
926: sub start_address {
927: my ($target,$token) = @_;
928: my $currentstring = '';
929: if ($target eq 'web') {
930: $currentstring .= $token->[4];
931: } elsif ($target eq 'tex') {
932: $currentstring .= "\\textit{";
933: }
934: return $currentstring;
935: }
936:
937: sub end_address {
938: my ($target,$token) = @_;
939: my $currentstring = '';
940: if ($target eq 'web') {
941: $currentstring .= $token->[2];
942: } elsif ($target eq 'tex') {
943: $currentstring .= "}";
944: }
945: return $currentstring;
946: }
947:
948: #-- <dfn> tag
949: sub start_dfn {
950: my ($target,$token) = @_;
951: my $currentstring = '';
952: if ($target eq 'web') {
953: $currentstring .= $token->[4];
954: } elsif ($target eq 'tex') {
955: $currentstring .= "\\textit{";
956: }
957: return $currentstring;
958: }
959:
960: sub end_dfn {
961: my ($target,$token) = @_;
962: my $currentstring = '';
963: if ($target eq 'web') {
964: $currentstring .= $token->[2];
965: } elsif ($target eq 'tex') {
966: $currentstring .= "}";
967: }
968: return $currentstring;
969: }
970:
971: #-- <tt> tag
972: sub start_tt {
973: my ($target,$token) = @_;
974: my $currentstring = '';
975: if ($target eq 'web') {
976: $currentstring .= $token->[4];
977: } elsif ($target eq 'tex') {
978: $currentstring .= '\texttt{';
979: }
980: return $currentstring;
981: }
982:
983: sub end_tt {
984: my ($target,$token) = @_;
985: my $currentstring = '';
986: if ($target eq 'web') {
987: $currentstring .= $token->[2];
988: } elsif ($target eq 'tex') {
989: $currentstring .= '}';
990: }
991: return $currentstring;
992: }
993:
994: #-- <kbd> tag
995: sub start_kbd {
996: my ($target,$token) = @_;
997: my $currentstring = '';
998: if ($target eq 'web') {
999: $currentstring .= $token->[4];
1000: } elsif ($target eq 'tex') {
1001: $currentstring .= "\\texttt";
1002: }
1003: return $currentstring;
1004: }
1005:
1006: sub end_kbd {
1007: my ($target,$token) = @_;
1008: my $currentstring = '';
1009: if ($target eq 'web') {
1010: $currentstring .= $token->[2];
1011: } elsif ($target eq 'tex') {
1012: $currentstring .= "}";
1013: }
1014: return $currentstring;
1015: }
1016:
1017: #-- <code> tag
1018: sub start_code {
1019: my ($target,$token) = @_;
1020: my $currentstring = '';
1021: if ($target eq 'web') {
1022: $currentstring .= $token->[4];
1023: } elsif ($target eq 'tex') {
1024: $currentstring .= '\texttt{';
1025: }
1026: return $currentstring;
1027: }
1028:
1029: sub end_code {
1030: my ($target,$token) = @_;
1031: my $currentstring = '';
1032: if ($target eq 'web') {
1033: $currentstring .= $token->[2];
1034: } elsif ($target eq 'tex') {
1035: $currentstring .= '}';
1036: }
1037: return $currentstring;
1038: }
1039:
1040: #-- <em> tag
1041: sub start_em {
1042: my ($target,$token) = @_;
1043: my $currentstring = '';
1044: if ($target eq 'web') {
1045: $currentstring .= $token->[4];
1046: } elsif ($target eq 'tex') {
1047: $currentstring .= '\emph{';
1048: }
1049: return $currentstring;
1050: }
1051:
1052: sub end_em {
1053: my ($target,$token) = @_;
1054: my $currentstring = '';
1055: if ($target eq 'web') {
1056: $currentstring .= $token->[2];
1057: } elsif ($target eq 'tex') {
1058: $currentstring .= '}';
1059: }
1060: return $currentstring;
1061: }
1062:
1063: #-- <q> tag
1064: sub start_q {
1065: my ($target,$token) = @_;
1066: my $currentstring = '';
1067: if ($target eq 'web') {
1068: $currentstring .= $token->[4];
1069: } elsif ($target eq 'tex') {
1070: $currentstring .= "\\emph{";
1071: }
1072: return $currentstring;
1073: }
1074:
1075: sub end_q {
1076: my ($target,$token) = @_;
1077: my $currentstring = '';
1078: if ($target eq 'web') {
1079: $currentstring .= $token->[2];
1080: } elsif ($target eq 'tex') {
1081: $currentstring .= "}";
1082: }
1083: return $currentstring;
1084: }
1085:
1086: #-- <p> tag
1087: sub start_p {
1088: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1089: my $currentstring = '';
1090: if ($target eq 'web') {
1091: $currentstring .= $token->[4];
1092: } elsif ($target eq 'tex') {
1093: my $signal=1;
1094: foreach my $tag (@$tagstack) {if (lc($tag) eq 'b') {$signal=0;}}
1095: if ($signal) {$currentstring .= '\par ';}
1096: }
1097: return $currentstring;
1098: }
1099:
1100: sub end_p {
1101: my ($target,$token) = @_;
1102: my $currentstring = '';
1103: if ($target eq 'web') {
1104: $currentstring .= $token->[2];
1105: }
1106: return $currentstring;
1107: }
1108:
1109: #-- <br> tag
1110: sub start_br {
1111: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1112: my $currentstring = '';
1113: if ($target eq 'web') {
1114: $currentstring .= $token->[4];
1115: } elsif ($target eq 'tex') {
1116: if ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') {
1117: $currentstring .= '\vskip 0.2 mm ';
1118: }
1119: }
1120: return $currentstring;
1121: }
1122:
1123: sub end_br {
1124: my ($target,$token) = @_;
1125: my $currentstring = '';
1126: if ($target eq 'web') {
1127: $currentstring .= $token->[2];
1128: }
1129: return $currentstring;
1130: }
1131:
1132: #-- <big> tag
1133: sub start_big {
1134: my ($target,$token) = @_;
1135: my $currentstring = '';
1136: if ($target eq 'web') {
1137: $currentstring .= $token->[4];
1138: } elsif ($target eq 'tex') {
1139: $currentstring .= '{\large ';
1140: }
1141: return $currentstring;
1142: }
1143:
1144: sub end_big {
1145: my ($target,$token) = @_;
1146: my $currentstring = '';
1147: if ($target eq 'web') {
1148: $currentstring .= $token->[2];
1149: } elsif ($target eq 'tex') {
1150: $currentstring .= '}';
1151: }
1152: return $currentstring;
1153: }
1154:
1155: #-- <small> tag
1156: sub start_small {
1157: my ($target,$token) = @_;
1158: my $currentstring = '';
1159: if ($target eq 'web') {
1160: $currentstring .= $token->[4];
1161: } elsif ($target eq 'tex') {
1162: $currentstring .= '{\footnotesize ';
1163: }
1164: return $currentstring;
1165: }
1166:
1167: sub end_small {
1168: my ($target,$token) = @_;
1169: my $currentstring = '';
1170: if ($target eq 'web') {
1171: $currentstring .= $token->[2];
1172: } elsif ($target eq 'tex') {
1173: $currentstring .= '}';
1174: }
1175: return $currentstring;
1176: }
1177:
1178: #-- <basefont> tag
1179: sub start_basefont {
1180: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1181: my $currentstring = '';
1182: if ($target eq 'web') {
1183: $currentstring = $token->[4];
1184: } elsif ($target eq 'tex') {
1185: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1186: if (defined $basesize) {
1187: $currentstring = '{\\'.$basesize.' ';
1188: }
1189: }
1190: return $currentstring;
1191: }
1192:
1193: sub end_basefont {
1194: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1195: my $currentstring = '';
1196: if ($target eq 'web') {
1197: $currentstring = $token->[4];
1198: } elsif ($target eq 'tex') {
1199: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1200: if (defined $basesize) {
1201: $currentstring = '}';
1202: }
1203: }
1204: return $currentstring;
1205: }
1206:
1207: #-- <font> tag
1208: sub start_font {
1209: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1210: my $currentstring = '';
1211: if ($target eq 'web') {
1212: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1213: if ($face=~/symbol/i) {
1214: $Apache::lonxml::prevent_entity_encode++;
1215: } else {
1216: if (($ENV{'browser.fontenhance'} eq 'on') ||
1217: ($ENV{'browser.blackwhite'} eq 'on')) { return ''; }
1218: }
1219: $currentstring = $token->[4];
1220: } elsif ($target eq 'tex') {
1221: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1222: if (defined $fontsize) {
1223: $currentstring = '{\\'.$fontsize.' ';
1224: }
1225: }
1226: return $currentstring;
1227: }
1228:
1229: sub end_font {
1230: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1231: my $currentstring = '';
1232: if ($target eq 'web') {
1233: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1234: if ($face=~/symbol/i) {$Apache::lonxml::prevent_entity_encode--;}
1235: $currentstring = $token->[2];
1236: } elsif ($target eq 'tex') {
1237: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1238: if (defined $fontsize) {
1239: $currentstring = '}';
1240: }
1241: }
1242: return $currentstring;
1243: }
1244:
1245: #-- <strike> tag
1246: sub start_strike {
1247: my ($target,$token) = @_;
1248: my $currentstring = '';
1249: if ($target eq 'web') {
1250: $currentstring .= $token->[4];
1251: } elsif ($target eq 'tex') {
1252: &Apache::lonxml::startredirection();
1253: }
1254: return $currentstring;
1255: }
1256:
1257: sub end_strike {
1258: my ($target,$token) = @_;
1259: my $currentstring = '';
1260: if ($target eq 'web') {
1261: $currentstring .= $token->[2];
1262: } elsif ($target eq 'tex') {
1263: $currentstring=&Apache::lonxml::endredirection();
1264: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1265: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1266: $currentstring=~s/(\S)\s*$/$1\}/;
1267: }
1268: return $currentstring;
1269: }
1270:
1271: #-- <s> tag
1272: sub start_s {
1273: my ($target,$token) = @_;
1274: my $currentstring = '';
1275: if ($target eq 'web') {
1276: $currentstring .= $token->[4];
1277: } elsif ($target eq 'tex') {
1278: &Apache::lonxml::startredirection();
1279: }
1280: return $currentstring;
1281: }
1282:
1283: sub end_s {
1284: my ($target,$token) = @_;
1285: my $currentstring = '';
1286: if ($target eq 'web') {
1287: $currentstring .= $token->[2];
1288: } elsif ($target eq 'tex') {
1289: $currentstring=&Apache::lonxml::endredirection();
1290: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1291: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1292: $currentstring=~s/(\S)\s*$/$1\}/;
1293: }
1294: return $currentstring;
1295: }
1296:
1297: #-- <sub> tag
1298: sub start_sub {
1299: my ($target,$token) = @_;
1300: my $currentstring = '';
1301: if ($target eq 'web') {
1302: $currentstring .= $token->[4];
1303: } elsif ($target eq 'tex') {
1304: $currentstring .= "\$_{ ";
1305: }
1306: return $currentstring;
1307: }
1308:
1309: sub end_sub {
1310: my ($target,$token) = @_;
1311: my $currentstring = '';
1312: if ($target eq 'web') {
1313: $currentstring .= $token->[2];
1314: } elsif ($target eq 'tex') {
1315: $currentstring .= " }\$";
1316: }
1317: return $currentstring;
1318: }
1319:
1320: #-- <sup> tag
1321: sub start_sup {
1322: my ($target,$token) = @_;
1323: my $currentstring = '';
1324: if ($target eq 'web') {
1325: $currentstring .= $token->[4];
1326: } elsif ($target eq 'tex') {
1327: $currentstring .= "\$^{ ";
1328: }
1329: return $currentstring;
1330: }
1331:
1332: sub end_sup {
1333: my ($target,$token) = @_;
1334: my $currentstring = '';
1335: if ($target eq 'web') {
1336: $currentstring .= $token->[2];
1337: } elsif ($target eq 'tex') {
1338: $currentstring .= " }\$";
1339: }
1340: return $currentstring;
1341: }
1342:
1343: #-- <hr> tag
1344: sub start_hr {
1345: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1346: my $currentstring = '';
1347: if ($target eq 'web') {
1348: $currentstring .= $token->[4];
1349: } elsif ($target eq 'tex') {
1350: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1351: if (defined $LaTeXwidth) {
1352: if ($LaTeXwidth=~/^%/) {
1353: substr($LaTeXwidth,0,1)='';
1354: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1355: }
1356: } else {
1357: $LaTeXwidth ='0.9\textwidth';
1358: }
1359: my ($pre,$post);
1360: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1361: if (($align eq 'center') || (not defined $align)) {
1362: $pre=''; $post='';
1363: } elsif ($align eq 'left') {
1364: $pre='\rlap{'; $post='} \hfill';
1365: } elsif ($align eq 'right') {
1366: $pre=' \hfill \llap{'; $post='}';
1367: }
1368: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1369: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1370: }
1371: return $currentstring;
1372: }
1373:
1374: sub end_hr {
1375: my ($target,$token) = @_;
1376: my $currentstring = '';
1377: if ($target eq 'web') {
1378: $currentstring .= $token->[2];
1379: }
1380: return $currentstring;
1381: }
1382:
1383: #-- <div> tag
1384: sub start_div {
1385: my ($target,$token) = @_;
1386: my $currentstring = '';
1387: if ($target eq 'web') {
1388: $currentstring .= $token->[4];
1389: }
1390: return $currentstring;
1391: }
1392:
1393: sub end_div {
1394: my ($target,$token) = @_;
1395: my $currentstring = '';
1396: if ($target eq 'web') {
1397: $currentstring .= $token->[2];
1398: }
1399: return $currentstring;
1400: }
1401:
1402: #-- <a> tag
1403: sub start_a {
1404: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1405: my $currentstring = '';
1406: if ($target eq 'web') {
1407: $currentstring .= $token->[4];
1408: } elsif ($target eq 'tex') {
1409: my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1410: my $b=&Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
1411: if ($a=~/\S/) {
1412: $a=~s/([^\\])%/$1\\\%/g;
1413: $currentstring .= '\ref{URI: '.$a.'}';
1414: } elsif ($b=~/\S/) {
1415: $currentstring .= '\ref{Anchor: '.$b.'}';
1416: } else {
1417: $currentstring.='';
1418: }
1419: }
1420: return $currentstring;
1421: }
1422:
1423: sub end_a {
1424: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1425: my $currentstring = '';
1426: if ($target eq 'web') {
1427: $currentstring .= $token->[2];
1428: }
1429: return $currentstring;
1430: }
1431:
1432: #-- <li> tag
1433: sub start_li {
1434: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1435: my $currentstring = '';
1436: if ($target eq 'web') {
1437: $currentstring = $token->[4];
1438: } elsif ($target eq 'tex') {
1439: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,1);
1440: if ($type=~/circle/) {
1441: $currentstring .= ' \item[o] ';
1442: } elsif ($type=~/square/) {
1443: $currentstring .= ' \item[$\Box$] ';
1444: } elsif ($type ne '') {
1445: $currentstring .= ' \item['.$type.'] ';
1446: } else {
1447: $currentstring .= ' \item ';
1448: }
1449: }
1450: return $currentstring;
1451: }
1452:
1453: sub end_li {
1454: my ($target,$token) = @_;
1455: my $currentstring = '';
1456: if ($target eq 'web') {
1457: $currentstring = $token->[2];
1458: }
1459: return $currentstring;
1460: }
1461:
1462: #-- <u> tag
1463: sub start_u {
1464: my ($target,$token) = @_;
1465: my $currentstring = '';
1466: if ($target eq 'web') {
1467: $currentstring .= $token->[4];
1468: } elsif ($target eq 'tex') {
1469: &Apache::lonxml::startredirection();
1470: }
1471: return $currentstring;
1472: }
1473:
1474: sub end_u {
1475: my ($target,$token) = @_;
1476: my $currentstring = '';
1477: if ($target eq 'web') {
1478: $currentstring .= $token->[2];
1479: } elsif ($target eq 'tex') {
1480: $currentstring=&Apache::lonxml::endredirection();
1481: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1482: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1483: $currentstring=~s/(\S)\s*$/$1\}/;
1484: }
1485: return $currentstring;
1486: }
1487:
1488: #-- <ul> tag
1489: sub start_ul {
1490: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1491: my $currentstring = '';
1492: if ($target eq 'web') {
1493: $currentstring = $token->[4];
1494: } elsif ($target eq 'tex') {
1495: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1496: if ($TeXtype eq 'disc') {
1497: $currentstring .= ' \renewcommand{\labelitemi}{$\bullet$}
1498: \renewcommand{\labelitemii}{$\bullet$}
1499: \renewcommand{\labelitemiii}{$\bullet$}
1500: \renewcommand{\labelitemiv}{$\bullet$}';
1501: } elsif ($TeXtype eq 'circle') {
1502: $currentstring .= ' \renewcommand{\labelitemi}{$\circ$}
1503: \renewcommand{\labelitemii}{$\circ$}
1504: \renewcommand{\labelitemiii}{$\circ$}
1505: \renewcommand{\labelitemiv}{$\circ$}';
1506: } elsif ($TeXtype eq 'square') {
1507: $currentstring .= ' \renewcommand{\labelitemi}{$\diamond$}
1508: \renewcommand{\labelitemii}{$\diamond$}
1509: \renewcommand{\labelitemiii}{$\diamond$}
1510: \renewcommand{\labelitemiv}{$\diamond$}';
1511: }
1512: $currentstring .= '\begin{itemize}';
1513: }
1514: return $currentstring;
1515: }
1516:
1517: sub end_ul {
1518: my ($target,$token) = @_;
1519: my $currentstring = '';
1520: if ($target eq 'web') {
1521: $currentstring = $token->[2];
1522: } elsif ($target eq 'tex') {
1523: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}
1524: \renewcommand{\labelitemii}{$\bullet$}
1525: \renewcommand{\labelitemiii}{$\bullet$}
1526: \renewcommand{\labelitemiv}{$\bullet$}';
1527: }
1528: return $currentstring;
1529: }
1530:
1531: #-- <menu> tag
1532: sub start_menu {
1533: my ($target,$token) = @_;
1534: my $currentstring = '';
1535: if ($target eq 'web') {
1536: $currentstring = $token->[4];
1537: } elsif ($target eq 'tex') {
1538: $currentstring = " \\begin{itemize} ";
1539: }
1540: return $currentstring;
1541: }
1542:
1543: sub end_menu {
1544: my ($target,$token) = @_;
1545: my $currentstring = '';
1546: if ($target eq 'web') {
1547: $currentstring = $token->[2];
1548: } elsif ($target eq 'tex') {
1549: $currentstring = " \\end{itemize}";
1550: }
1551: return $currentstring;
1552: }
1553:
1554: #-- <dir> tag
1555: sub start_dir {
1556: my ($target,$token) = @_;
1557: my $currentstring = '';
1558: if ($target eq 'web') {
1559: $currentstring = $token->[4];
1560: } elsif ($target eq 'tex') {
1561: $currentstring = " \\begin{itemize} ";
1562: }
1563: return $currentstring;
1564: }
1565:
1566: sub end_dir {
1567: my ($target,$token) = @_;
1568: my $currentstring = '';
1569: if ($target eq 'web') {
1570: $currentstring = $token->[2];
1571: } elsif ($target eq 'tex') {
1572: $currentstring = " \\end{itemize}";
1573: }
1574: return $currentstring;
1575: }
1576:
1577: #-- <ol> tag
1578: sub start_ol {
1579: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1580: my $currentstring = '';
1581: if ($target eq 'web') {
1582: $currentstring = $token->[4];
1583: } elsif ($target eq 'tex') {
1584: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1585: if ($type eq '1') {
1586: $currentstring .= ' \renewcommand{\labelenumi}{\arabic{enumi}.}
1587: \renewcommand{\labelenumii}{\arabic{enumii}.}
1588: \renewcommand{\labelenumiii}{\arabic{enumiii}.}
1589: \renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1590: } elsif ($type eq 'A') {
1591: $currentstring .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}
1592: \renewcommand{\labelenumii}{\Alph{enumii}.}
1593: \renewcommand{\labelenumiii}{\Alph{enumiii}.}
1594: \renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1595: } elsif ($type eq 'a') {
1596: $currentstring .= ' \renewcommand{\labelenumi}{\alph{enumi}.}
1597: \renewcommand{\labelenumii}{\alph{enumii}.}
1598: \renewcommand{\labelenumiii}{\alph{enumiii}.}
1599: \renewcommand{\labelenumiv}{\alph{enumiv}.} ';
1600: } elsif ($type eq 'i') {
1601: $currentstring .= ' \renewcommand{\labelenumi}{\roman{enumi}.}
1602: \renewcommand{\labelenumii}{\roman{enumii}.}
1603: \renewcommand{\labelenumiii}{\roman{enumiii}.}
1604: \renewcommand{\labelenumiv}{\roman{enumiv}.} ';
1605: } elsif ($type eq 'I') {
1606: $currentstring .= ' \renewcommand{\labelenumi}{\Roman{enumi}.}
1607: \renewcommand{\labelenumii}{\Roman{enumii}.}
1608: \renewcommand{\labelenumiii}{\Roman{enumiii}.}
1609: \renewcommand{\labelenumiv}{\Roman{enumiv}.} ';
1610: }
1611: $currentstring .= '\begin{enumerate}';
1612: }
1613: return $currentstring;
1614: }
1615:
1616: sub end_ol {
1617: my ($target,$token) = @_;
1618: my $currentstring = '';
1619: if ($target eq 'web') {
1620: $currentstring = $token->[2];
1621: } elsif ($target eq 'tex') {
1622: $currentstring = '\end{enumerate} \renewcommand{\labelenumi}{\arabic{enumi}.}
1623: \renewcommand{\labelenumii}{\arabic{enumii}.}
1624: \renewcommand{\labelenumiii}{\arabic{enumiii}.}
1625: \renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1626: }
1627: return $currentstring;
1628: }
1629:
1630: #-- <dl> tag
1631: sub start_dl {
1632: my ($target,$token) = @_;
1633: my $currentstring = '';
1634: if ($target eq 'web') {
1635: $currentstring = $token->[4];
1636: } elsif ($target eq 'tex') {
1637: $currentstring = '\begin{description}';
1638: }
1639: return $currentstring;
1640: }
1641:
1642: sub end_dl {
1643: my ($target,$token) = @_;
1644: my $currentstring = '';
1645: if ($target eq 'web') {
1646: $currentstring = $token->[2];
1647: } elsif ($target eq 'tex') {
1648: $currentstring = '\end{description}';
1649: }
1650: return $currentstring;
1651: }
1652:
1653: #-- <dt> tag
1654: sub start_dt {
1655: my ($target,$token) = @_;
1656: my $currentstring = '';
1657: if ($target eq 'web') {
1658: $currentstring = $token->[4];
1659: } elsif ($target eq 'tex') {
1660: $currentstring = '\item[';
1661: }
1662: return $currentstring;
1663: }
1664:
1665: sub end_dt {
1666: my ($target,$token) = @_;
1667: my $currentstring = '';
1668: if ($target eq 'web') {
1669: $currentstring = $token->[2];
1670: } elsif ($target eq 'tex') {
1671: $currentstring = ']';
1672: }
1673: return $currentstring;
1674: }
1675:
1676: #-- <dd> tag
1677: sub start_dd {
1678: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1679: my $currentstring = '';
1680: if ($target eq 'web') {
1681: $currentstring = $token->[4];
1682: } elsif ($target eq 'tex') {
1683: if ($$tagstack[-2] eq 'dl') {
1684: $currentstring = ' \item [] ';
1685: } elsif ($$tagstack[-2] eq 'dt') {
1686: $currentstring = ']';
1687: }
1688: }
1689: return $currentstring;
1690: }
1691:
1692: sub end_dd {
1693: my ($target,$token) = @_;
1694: my $currentstring = '';
1695: if ($target eq 'web') {
1696: $currentstring = $token->[2];
1697: }
1698: return $currentstring;
1699: }
1700:
1701: #-- <table> tag
1702: sub start_table {
1703: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1704: my $textwidth='';
1705: if (not defined @Apache::londefdef::table) {
1706: $textwidth=&recalc($ENV{'form.textwidth'});
1707: $textwidth=~/(\d+\.?\d*)/;
1708: $textwidth=0.95*$1;
1709: } else {
1710: $textwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1711: }
1712: my $currentstring = '';
1713: if ($target eq 'web') {
1714: $currentstring = $token->[4];
1715: } elsif ($target eq 'tex') {
1716: my $aa = {};
1717: push @Apache::londefdef::table, $aa;
1718: $Apache::londefdef::table[-1]{'row_number'} = -1;
1719: #table's width
1720: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1721: if (not defined $TeXwidth) {
1722: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,$safeeval,undef,1);
1723: if ($htmlwidth=~/%/) {
1724: $htmlwidth=~/(\d+)/;
1725: my $value=$1*$textwidth/100;
1726: $Apache::londefdef::table[-1]{'width'}=$value;
1727: } else {
1728: $Apache::londefdef::table[-1]{'width'}=$textwidth;
1729: }
1730: } elsif ($TeXwidth=~/%/) {
1731: $TeXwidth=~/(\d+)/;
1732: my $value=$1*$textwidth/100;
1733: $Apache::londefdef::table[-1]{'width'}=$value;
1734: } else {
1735: $Apache::londefdef::table[-1]{'width'}=$textwidth;
1736: }
1737: #table's border
1738: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval,undef,1);
1739: unless (defined $border) { $border = 0; }
1740: if ($border) {
1741: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
1742: $Apache::londefdef::table[-1]{'vinc'} = '&';
1743: $Apache::londefdef::table[-1]{'vvinc'} = '|';
1744: } else {
1745: $Apache::londefdef::table[-1]{'hinc'} = '';
1746: $Apache::londefdef::table[-1]{'vinc'} = '&';
1747: $Apache::londefdef::table[-1]{'vvinc'} = '';
1748: }
1749: $Apache::londefdef::table[-1]{'output'} = ' \noindent \begin{tabular} ';
1750: $currentstring = '\keephidden{NEW TABLE ENTRY}';
1751: }
1752: return $currentstring;
1753: }
1754:
1755: sub end_table {
1756: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1757: my $currentstring = '';
1758: if ($target eq 'web') {
1759: $currentstring = $token->[2];
1760: } elsif ($target eq 'tex') {
1761: my $inmemory = '';
1762: my $output = '';
1763: #construct header of the table
1764: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
1765: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'counter_columns'};$in++) {
1766: $header_of_table .= $Apache::londefdef::table[-1]{'columns'}[$in].$Apache::londefdef::table[-1]{'vvinc'};
1767: }
1768: $header_of_table .= '}';
1769: #define the length of the table cells
1770: #always starts with TeXwidth (if defined everything else is ignored)
1771: my @length_row_final = split(/,/,$Apache::londefdef::table[-1]{'TeXlengthrow'}[0]);
1772: for (my $in=1;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1773: my @length_row = split(/,/,$Apache::londefdef::table[-1]{'TeXlengthrow'}[$in]);
1774: for (my $jn=0;$jn<=$#length_row;$jn++) {
1775: if ($length_row_final[$jn]<$length_row[$jn]) {$length_row_final[$jn]=$length_row[$jn];}
1776: }
1777: }
1778: #continues trying estimate the width of raw data
1779: my @length_raw_row = split(/,/,$Apache::londefdef::table[-1]{'lengthrow'}[0]);
1780: for (my $in=1;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1781: my @length_row = split(/,/,$Apache::londefdef::table[-1]{'lengthrow'}[$in]);
1782: for (my $jn=0;$jn<=$#length_row;$jn++) {
1783: if ($length_raw_row[$jn]<$length_row[$jn]) {$length_raw_row[$jn]=$length_row[$jn];}
1784: }
1785: }
1786: #comparing of TeXwidth and raw data width
1787: my $available_length=$Apache::londefdef::table[-1]{'width'};
1788: my $needed=0;
1789: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1790: if ($length_row_final[$jn]!=0) {
1791: $available_length=$available_length-$length_row_final[$jn];
1792: $needed++;
1793: }
1794: }
1795: $needed=$#length_row_final-$needed+1;
1796: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1797: if ($length_row_final[$jn]==0) {
1798: if ($length_raw_row[$jn]<$available_length) {
1799: $length_row_final[$jn]=$length_raw_row[$jn];
1800: $available_length=$available_length-$length_raw_row[$jn];
1801: $needed--;
1802: }
1803: }
1804: }
1805: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1806: if ($length_row_final[$jn]==0) {
1807: $length_row_final[$jn]=0.9*$available_length/$needed;
1808: }
1809: }
1810: #fill the table
1811: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1812: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1813: my $substituted=$length_row_final[$jn];
1814: $Apache::londefdef::table[-1]{'rowdata'}[$in]=~s/TOBECHANGEDONNUMBER/$substituted mm/;
1815: }
1816: $output .= $Apache::londefdef::table[-1]{'rowdata'}[$in];
1817: chop $output;
1818: $output .= ' \\\\ ';
1819: }
1820: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$output.$Apache::londefdef::table[-1]{'hinc'}.'\end{tabular}\vskip 0 mm ';
1821: if ($#Apache::londefdef::table > 0) {
1822: my $inmemory = $Apache::londefdef::table[-1]{'output'};
1823: pop @Apache::londefdef::table;
1824: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1825: } else {
1826: $currentstring .= $Apache::londefdef::table[-1]{'output'};
1827: pop @Apache::londefdef::table;
1828: undef @Apache::londefdef::table;
1829: }
1830: }
1831: return $currentstring;
1832: }
1833:
1834: #-- <tr> tag (end tag optional)
1835: sub start_tr {
1836: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1837: my $currentstring = '';
1838: if ($target eq 'web') {
1839: $currentstring = $token->[4];
1840: } elsif ($target eq 'tex') {
1841: $Apache::londefdef::table[-1]{'row_number'}++;
1842: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
1843: if ($alignchar ne '') {
1844: push @ {$Apache::londefdef::table[-1]{'rows'} }, $alignchar;
1845: } else {
1846: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
1847: }
1848: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
1849: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1850: $Apache::londefdef::table[-1]{'TeXlength'} = '';
1851: $Apache::londefdef::table[-1]{'length'} = '';
1852: }
1853: return $currentstring;
1854: }
1855:
1856: sub end_tr {
1857: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1858: my $currentstring = '';
1859: if ($target eq 'web') {
1860: $currentstring = $token->[2];
1861: } elsif ($target eq 'tex') {
1862: if ($Apache::londefdef::TD_redirection) {
1863: &end_td_tex($parstack,$parser,$safeeval);
1864: }
1865: push @{ $Apache::londefdef::table[-1]{'TeXlengthrow'} },$Apache::londefdef::table[-1]{'TeXlength'};
1866: push @{ $Apache::londefdef::table[-1]{'lengthrow'} },$Apache::londefdef::table[-1]{'length'};
1867: }
1868: return $currentstring;
1869: }
1870:
1871: #-- <td> tag (end tag optional)
1872: sub start_td {
1873: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1874: my $currentstring = '';
1875: if ($target eq 'web') {
1876: $currentstring = $token->[4];
1877: } elsif ($target eq 'tex') {
1878: $Apache::londefdef::TD_redirection = 1;
1879: &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
1880: }
1881: return $currentstring;
1882: }
1883:
1884: sub tag_check {
1885: my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
1886: my @ar=@$parstack;
1887: for (my $i=$#ar-1;$i>=0;$i--) {
1888: if (lc($$tagstack[$i]) eq $good_tag) {
1889: &start_td_tex($parstack,$parser,$safeeval);
1890: last;
1891: } elsif (lc($$tagstack[$i]) eq $bad_tag) {
1892: splice @ar, $i+1;
1893: &end_td_tex(\@ar,$parser,$safeeval);
1894: &start_td_tex($parstack,$parser,$safeeval);
1895: last;
1896: }
1897: }
1898: return '';
1899: }
1900:
1901: sub start_td_tex {
1902: my ($parstack,$parser,$safeeval) = @_;
1903: my $what_to_push = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
1904: if ($what_to_push eq '') {
1905: $what_to_push = substr($Apache::londefdef::table[-1]{'rows'}[0],0,1);;
1906: }
1907: push @{ $Apache::londefdef::table[-1]{'columns'} }, $what_to_push;
1908: $Apache::londefdef::table[-1]{'counter_columns'}++;
1909: &Apache::lonxml::startredirection();
1910: return '';
1911: }
1912:
1913: sub end_td_tex {
1914: my ($parstack,$parser,$safeeval) = @_;
1915: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
1916: my $data=&Apache::lonxml::endredirection();
1917: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1918: if (defined $TeXwidth) {
1919: my $current_length=&recalc($TeXwidth);
1920: $current_length=~/(\d+)/;
1921: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
1922: $Apache::londefdef::table[-1]{'length'} .= '0,';
1923: } else {
1924: if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
1925: my $current_length=&recalc($1);
1926: $current_length=~/(\d+\.?\d*)/;
1927: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
1928: $Apache::londefdef::table[-1]{'length'} .= '0,';
1929: } else {
1930: $data=~s/^\s+(\S.*)/$1/;
1931: $data=~s/(.*\S)\s+$/$1/;
1932: $data=~s/(\s)+/$1/;
1933: my $current_length=0;
1934: if ($data=~/\\vskip/) {
1935: my $newdata=$data;
1936: $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
1937: my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
1938: foreach my $elementdata (@newdata) {
1939: $elementdata=~s/^\s+(\S.*)/$1/;
1940: $elementdata=~s/(.*\S)\s+$/$1/;
1941: $elementdata=~s/(\s)+/$1/;
1942: my $lengthnewdata=1.8*length($elementdata);
1943: if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
1944: }
1945: } else {
1946: $current_length=1.8*length($data);
1947: }
1948: $Apache::londefdef::table[-1]{'length'} .= $current_length.',';
1949: $Apache::londefdef::table[-1]{'TeXlength'} .= '0,';
1950: }
1951: }
1952: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
1953: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
1954: }
1955: @{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{TOBECHANGEDONNUMBER}{'.$data.'} '.$Apache::londefdef::table[-1]{'vinc'};
1956: return'';
1957: }
1958:
1959: sub end_td {
1960: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1961: my $currentstring = '';
1962: if ($target eq 'web') {
1963: $currentstring = $token->[2];
1964: } elsif ($target eq 'tex') {
1965: $Apache::londefdef::TD_redirection =0;
1966: &end_td_tex($parstack,$parser,$safeeval);
1967: }
1968: return $currentstring;
1969: }
1970:
1971: #-- <th> tag (end tag optional)
1972: sub start_th {
1973: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1974: my $currentstring = '';
1975: if ($target eq 'web') {
1976: $currentstring = $token->[4];
1977: } elsif ($target eq 'tex') {
1978: my $what_to_push = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
1979: if ($what_to_push eq '') {
1980: $what_to_push = substr($Apache::londefdef::table[-1]{'rows'}[0],0,1);;
1981: }
1982: push @{ $Apache::londefdef::table[-1]{'columns'} }, $what_to_push;
1983: $Apache::londefdef::table[-1]{'counter_columns'}++;
1984: &Apache::lonxml::startredirection();
1985: }
1986: return $currentstring;
1987: }
1988:
1989: sub end_th {
1990: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1991: my $currentstring = '';
1992: if ($target eq 'web') {
1993: $currentstring = $token->[2];
1994: } elsif ($target eq 'tex') {
1995: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
1996: my $data=&Apache::lonxml::endredirection();
1997: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1998: if (defined $TeXwidth) {
1999: my $current_length=&recalc($TeXwidth);
2000: $current_length=~/(\d+)/;
2001: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
2002: $Apache::londefdef::table[-1]{'length'} .= '0,';
2003: } else {
2004: if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
2005: my $current_length=&recalc($1);
2006: $current_length=~/(\d+)/;
2007: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
2008: $Apache::londefdef::table[-1]{'length'} .= '0,';
2009: } else {
2010: $data=~/^\s*(\S.*)/;
2011: $data=$1;
2012: $data=~/(.*\S)\s*$/;
2013: $data=$1;
2014: my $current_length=2*length($data);
2015: $Apache::londefdef::table[-1]{'length'} .= $current_length.',';
2016: $Apache::londefdef::table[-1]{'TeXlength'} .= '0,';
2017: }
2018: }
2019: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
2020: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
2021: }
2022: $data='\textbf{'.$data.'}';
2023: @{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{TOBECHANGEDONNUMBER}{'.$data.'} '.$Apache::londefdef::table[-1]{'vinc'};
2024: }
2025: return $currentstring;
2026: }
2027: #-- <img> tag
2028: sub start_img {
2029: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2030: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
2031: undef,1);
2032: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
2033: my $currentstring = '';
2034: my $width_param = '';
2035: my $height_param = '';
2036: my $scaling = .3;
2037: if ($target eq 'web') {
2038: if ($ENV{'browser.imagesuppress'} ne 'on') {
2039: $currentstring.= $token->[4];
2040: } else {
2041: my $alttag= &Apache::lonxml::get_param
2042: ('alt',$parstack,$safeeval,undef,1);
2043: unless ($alttag) {
2044: $alttag=&Apache::lonmeta::alttag
2045: ($Apache::lonxml::pwd[-1],$src);
2046: }
2047: $currentstring.='[IMAGE: '.$alttag.']';
2048: }
2049: } elsif ($target eq 'tex') {
2050: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
2051: &image_replication($src);
2052: #if original gif/jpg/png file exist do following:
2053: if (-e $src) {
2054: #defines the default size of image
2055: my $image = Image::Magick->new;
2056: my $current_figure = $image->Read($src);
2057: $width_param = $image->Get('width') * $scaling;;
2058: $height_param = $image->Get('height') * $scaling;;
2059: undef $image;
2060: #do we have any specified size of the picture?
2061: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval);
2062: my $TeXheight = &Apache::lonxml::get_param('TeXheight',$parstack,$safeeval);
2063: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
2064: undef,1);
2065: if ($TeXwidth ne '') {
2066: if ($TeXwidth=~/(\d+)\s*\%/) {
2067: $width_param = $1*$ENV{'form.textwidth'}/100;
2068: } else {
2069: $width_param = $TeXwidth;
2070: }
2071: } elsif ($TeXheight ne '') {
2072: $width_param = $TeXheight/$height_param*$width_param;
2073: } elsif ($width ne '') {
2074: $width_param = $width*$scaling;
2075: }
2076: if ($width_param > $ENV{'form.textwidth'}) {$width_param =0.95*$ENV{'form.textwidth'}}
2077: my $file;
2078: my $path;
2079: if ($src =~ m!(.*)/([^/]*)$!) {
2080: $file = $2;
2081: $path = $1.'/';
2082: }
2083: my $newsrc = $src;
2084: $newsrc =~ s/\.(gif|jpg|png)$/.eps/i;
2085: $file=~s/\.(gif|jpg|png)$/.eps/i;
2086: #where can we find the picture?
2087: if (-e $newsrc) {
2088: #eps counterpart for image exist
2089: if ($path) {
2090: $currentstring .= '\vskip 1 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
2091: }
2092: } else {
2093: #there is no eps counterpart for image - check for ps one
2094: $newsrc =~ s/\.eps$/\.ps/;
2095: if (-e $newsrc) {
2096: #ps counterpart for image exist
2097: $file =~ s/\.eps$/\.ps/;
2098: if ($path) {
2099: $currentstring .= '\vskip 1 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
2100: }
2101: } else {
2102: #there aren't eps or ps - so create eps
2103: my $temp_file;
2104: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.dat";
2105: $temp_file = Apache::File->new('>>'.$filename);
2106: print $temp_file "$src\n";
2107: $currentstring .= '\vskip 1 mm \graphicspath{{/home/httpd/prtspool/}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
2108: }
2109: }
2110: } else {
2111: #original image file doesn't exist so check the alt attribute
2112: my $alt =
2113: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2114: unless ($alt) {
2115: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2116: }
2117:
2118: if ($alt) {
2119: $currentstring .= ' '.$alt.' ';
2120: } else {
2121: #<allow> tag will care about replication
2122: }
2123: }
2124: }
2125: return $currentstring;
2126: }
2127:
2128: sub end_img {
2129: my ($target,$token) = @_;
2130: my $currentstring = '';
2131: if ($target eq 'web') {
2132: $currentstring = $token->[2];
2133: } elsif ($target eq 'tex') {
2134: $currentstring = '';
2135: }
2136: return $currentstring;
2137: }
2138:
2139: #-- <applet> tag
2140: sub start_applet {
2141: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2142:
2143: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
2144: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$code;
2145:
2146: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2147: undef,1);
2148: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$archive;
2149:
2150: my $currentstring = '';
2151: if ($target eq 'web') {
2152: if ($ENV{'browser.appletsuppress'} ne 'on') {
2153: $currentstring = $token->[4];
2154: } else {
2155: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2156: $safeeval,undef,1);
2157: unless ($alttag) {
2158: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2159: $code);
2160: }
2161: $currentstring='[APPLET: '.$alttag.']';
2162: }
2163: } elsif ($target eq 'tex') {
2164: $currentstring = " \\begin{figure} ";
2165: }
2166: return $currentstring;
2167: }
2168:
2169: sub end_applet {
2170: my ($target,$token) = @_;
2171: my $currentstring = '';
2172: if ($target eq 'web') {
2173: $currentstring = $token->[2];
2174: } elsif ($target eq 'tex') {
2175: $currentstring = " \\end{figure}";
2176: }
2177: return $currentstring;
2178: }
2179:
2180: #-- <embed> tag
2181: sub start_embed {
2182: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2183: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2184: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
2185: my $currentstring = '';
2186: if ($target eq 'web') {
2187: if ($ENV{'browser.embedsuppress'} ne 'on') {
2188: $currentstring = $token->[4];
2189: } else {
2190: my $alttag=&Apache::lonxml::get_param
2191: ('alt',$parstack,$safeeval,undef,1);
2192: unless ($alttag) {
2193: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2194: }
2195: $currentstring='[EMBED: '.$alttag.']';
2196: }
2197: } elsif ($target eq 'tex') {
2198: $currentstring = " \\begin{figure} ";
2199: }
2200: return $currentstring;
2201: }
2202:
2203: sub end_embed {
2204: my ($target,$token) = @_;
2205: my $currentstring = '';
2206: if ($target eq 'web') {
2207: $currentstring = $token->[2];
2208: } elsif ($target eq 'tex') {
2209: $currentstring = " \\end{figure}";
2210: }
2211: return $currentstring;
2212: }
2213:
2214: #-- <param> tag
2215: sub start_param {
2216: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2217: if (&Apache::lonxml::get_param
2218: ('name',$parstack,$safeeval,undef,1)=~/^cabbase$/i) {
2219: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2220: &Apache::lonxml::get_param('value',$parstack,$safeeval,undef,1);
2221: }
2222: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2223: &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2224: my $currentstring = '';
2225: if ($target eq 'web') {
2226: $currentstring = $token->[4];
2227: } elsif ($target eq 'tex') {
2228: $currentstring = " \\begin{figure} ";
2229: }
2230: return $currentstring;
2231: }
2232:
2233: sub end_param {
2234: my ($target,$token) = @_;
2235: my $currentstring = '';
2236: if ($target eq 'web') {
2237: $currentstring = $token->[2];
2238: } elsif ($target eq 'tex') {
2239: $currentstring = " \\end{figure}";
2240: }
2241: return $currentstring;
2242: }
2243:
2244: #-- <allow> tag
2245: sub start_allow {
2246: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2247: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2248: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
2249: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2250: &Apache::lonnet::clutter($src);
2251: &image_replication($src);
2252: my $result;
2253: if ($target eq 'edit') {
2254: $result .=&Apache::edit::tag_start($target,$token);
2255: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
2256: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
2257: } elsif ($target eq 'modified') {
2258: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2259: $safeeval,'src');
2260: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2261: }
2262: return $result;
2263: }
2264:
2265: sub end_allow {
2266: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2267: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
2268: return '';
2269: }
2270:
2271: #-- Frames
2272: sub start_frameset {
2273: my ($target,$token) = @_;
2274: my $currentstring = '';
2275: if ($target eq 'web') {
2276: if (!$Apache::lonxml::registered) {
2277: $currentstring.='<head>'.
2278: &Apache::lonmenu::registerurl(undef,$target).'</head>';
2279: }
2280: my $onLoad='';
2281: foreach my $key (keys(%{$token->[2]})) {
2282: if ($key =~ /^onload$/i) {
2283: $onLoad.=$token->[2]->{$key}.';';
2284: delete($token->[2]->{$key});
2285: }
2286: }
2287: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
2288: my $onUnload='';
2289: foreach my $key (keys(%{$token->[2]})) {
2290: if ($key =~ /^onunload$/i) {
2291: $onUnload.=$token->[2]->{$key}.';';
2292: delete($token->[2]->{$key});
2293: }
2294: }
2295: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
2296: ';'.$onUnload;
2297:
2298: $currentstring .= '<'.$token->[1];
2299: foreach (keys %{$token->[2]}) {
2300: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
2301: }
2302: $currentstring.='>';
2303: }
2304: return $currentstring;
2305: }
2306:
2307: sub end_frameset {
2308: my ($target,$token) = @_;
2309: my $currentstring = '';
2310: if ($target eq 'web') {
2311: $currentstring = $token->[2];
2312: }
2313: return $currentstring;
2314: }
2315:
2316: #-- <xmp>
2317: sub start_xmp {
2318: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2319: my $currentstring = '';
2320: if ($target eq 'web') {
2321: $currentstring .= $token->[4];
2322: } elsif ($target eq 'tex') {
2323: $currentstring .= '\begin{verbatim}';
2324: }
2325: return $currentstring;
2326: }
2327:
2328: sub end_xmp {
2329: my ($target,$token) = @_;
2330: my $currentstring = '';
2331: if ($target eq 'web') {
2332: $currentstring .= $token->[2];
2333: } elsif ($target eq 'tex') {
2334: $currentstring .= '\end{verbatim}';
2335: }
2336: return $currentstring;
2337: }
2338:
2339: #-- <pre>
2340: sub start_pre {
2341: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2342: my $currentstring = '';
2343: if ($target eq 'web') {
2344: $currentstring .= $token->[4];
2345: } elsif ($target eq 'tex') {
2346: $currentstring .= '\begin{verbatim}';
2347: }
2348: return $currentstring;
2349: }
2350:
2351: sub end_pre {
2352: my ($target,$token) = @_;
2353: my $currentstring = '';
2354: if ($target eq 'web') {
2355: $currentstring .= $token->[2];
2356: } elsif ($target eq 'tex') {
2357: $currentstring .= '\end{verbatim}';
2358: }
2359: return $currentstring;
2360: }
2361:
2362: #-- <insert>
2363: sub start_insert {
2364: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2365: my $currentstring = '';
2366: if ($target eq 'web') {
2367: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2368: $currentstring .= '<b>'.$display.'</b>';;
2369: }
2370: return $currentstring;
2371: }
2372:
2373: sub end_insert {
2374: my ($target,$token) = @_;
2375: my $currentstring = '';
2376: if ($target eq 'web') {
2377: $currentstring .= '';
2378: }
2379: return $currentstring;
2380: }
2381:
2382: #-- <externallink>
2383: sub start_externallink {
2384: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2385: my $currentstring = '';
2386: if ($target eq 'web') {
2387: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2388: $currentstring .= '<b>'.$display.'</b>';;
2389: }
2390: return $currentstring;
2391: }
2392:
2393: sub end_externallink {
2394: my ($target,$token) = @_;
2395: my $currentstring = '';
2396: if ($target eq 'web') {
2397: $currentstring .= '';
2398: }
2399: return $currentstring;
2400: }
2401:
2402: #-- <blankspace heigth="">
2403: sub start_blankspace {
2404: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2405: my $currentstring = '';
2406: if ($target eq 'tex') {
2407: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
2408: $currentstring .= '\vskip '.$howmuch.' ';
2409: }
2410: return $currentstring;
2411: }
2412:
2413: sub end_blankspace {
2414: my ($target,$token) = @_;
2415: my $currentstring = '';
2416: if ($target eq 'tex') {
2417: $currentstring .= '';
2418: }
2419: return $currentstring;
2420: }
2421:
2422: #-- <abbr> tag
2423: sub start_abbr {
2424: my ($target,$token) = @_;
2425: my $currentstring = '';
2426: if ($target eq 'web') {
2427: $currentstring = $token->[4];
2428: }
2429: return $currentstring;
2430: }
2431:
2432: sub end_abbr {
2433: my ($target,$token) = @_;
2434: my $currentstring = '';
2435: if ($target eq 'web') {
2436: $currentstring = $token->[2];
2437: }
2438: return $currentstring;
2439: }
2440:
2441: #-- <acronym> tag
2442: sub start_acronym {
2443: my ($target,$token) = @_;
2444: my $currentstring = '';
2445: if ($target eq 'web') {
2446: $currentstring = $token->[4];
2447: }
2448: return $currentstring;
2449: }
2450:
2451: sub end_acronym {
2452: my ($target,$token) = @_;
2453: my $currentstring = '';
2454: if ($target eq 'web') {
2455: $currentstring = $token->[2];
2456: }
2457: return $currentstring;
2458: }
2459:
2460: #-- <area> tag
2461: sub start_area {
2462: my ($target,$token) = @_;
2463: my $currentstring = '';
2464: if ($target eq 'web') {
2465: $currentstring = $token->[4];
2466: }
2467: return $currentstring;
2468: }
2469:
2470: sub end_area {
2471: my ($target,$token) = @_;
2472: my $currentstring = '';
2473: if ($target eq 'web') {
2474: $currentstring = $token->[2];
2475: }
2476: return $currentstring;
2477: }
2478:
2479: #-- <base> tag
2480: sub start_base {
2481: my ($target,$token) = @_;
2482: my $currentstring = '';
2483: if ($target eq 'web') {
2484: $currentstring = $token->[4];
2485: }
2486: return $currentstring;
2487: }
2488:
2489: sub end_base {
2490: my ($target,$token) = @_;
2491: my $currentstring = '';
2492: if ($target eq 'web') {
2493: $currentstring = $token->[2];
2494: }
2495: return $currentstring;
2496: }
2497:
2498: #-- <bdo> tag
2499: sub start_bdo {
2500: my ($target,$token) = @_;
2501: my $currentstring = '';
2502: if ($target eq 'web') {
2503: $currentstring = $token->[4];
2504: }
2505: return $currentstring;
2506: }
2507:
2508: sub end_bdo {
2509: my ($target,$token) = @_;
2510: my $currentstring = '';
2511: if ($target eq 'web') {
2512: $currentstring = $token->[2];
2513: }
2514: return $currentstring;
2515: }
2516:
2517: #-- <bgsound> tag
2518: sub start_bgsound {
2519: my ($target,$token) = @_;
2520: my $currentstring = '';
2521: if ($target eq 'web') {
2522: $currentstring = $token->[4];
2523: }
2524: return $currentstring;
2525: }
2526:
2527: sub end_bgsound {
2528: my ($target,$token) = @_;
2529: my $currentstring = '';
2530: if ($target eq 'web') {
2531: $currentstring = $token->[2];
2532: }
2533: return $currentstring;
2534: }
2535:
2536: #-- <blink> tag
2537: sub start_blink {
2538: my ($target,$token) = @_;
2539: my $currentstring = '';
2540: if ($target eq 'web') {
2541: $currentstring = $token->[4];
2542: }
2543: return $currentstring;
2544: }
2545:
2546: sub end_blink {
2547: my ($target,$token) = @_;
2548: my $currentstring = '';
2549: if ($target eq 'web') {
2550: $currentstring = $token->[2];
2551: }
2552: return $currentstring;
2553: }
2554:
2555: #-- <blockquote> tag
2556: sub start_blockquote {
2557: my ($target,$token) = @_;
2558: my $currentstring = '';
2559: if ($target eq 'web') {
2560: $currentstring = $token->[4];
2561: }
2562: return $currentstring;
2563: }
2564:
2565: sub end_blockquote {
2566: my ($target,$token) = @_;
2567: my $currentstring = '';
2568: if ($target eq 'web') {
2569: $currentstring = $token->[2];
2570: }
2571: return $currentstring;
2572: }
2573:
2574: #-- <button> tag
2575: sub start_button {
2576: my ($target,$token) = @_;
2577: my $currentstring = '';
2578: if ($target eq 'web') {
2579: $currentstring = $token->[4];
2580: }
2581: return $currentstring;
2582: }
2583:
2584: sub end_button {
2585: my ($target,$token) = @_;
2586: my $currentstring = '';
2587: if ($target eq 'web') {
2588: $currentstring = $token->[2];
2589: }
2590: return $currentstring;
2591: }
2592:
2593: #-- <caption> tag
2594: sub start_caption {
2595: my ($target,$token) = @_;
2596: my $currentstring = '';
2597: if ($target eq 'web') {
2598: $currentstring = $token->[4];
2599: }
2600: return $currentstring;
2601: }
2602:
2603: sub end_caption {
2604: my ($target,$token) = @_;
2605: my $currentstring = '';
2606: if ($target eq 'web') {
2607: $currentstring = $token->[2];
2608: }
2609: return $currentstring;
2610: }
2611:
2612: #-- <col> tag
2613: sub start_col {
2614: my ($target,$token) = @_;
2615: my $currentstring = '';
2616: if ($target eq 'web') {
2617: $currentstring = $token->[4];
2618: }
2619: return $currentstring;
2620: }
2621:
2622: sub end_col {
2623: my ($target,$token) = @_;
2624: my $currentstring = '';
2625: if ($target eq 'web') {
2626: $currentstring = $token->[2];
2627: }
2628: return $currentstring;
2629: }
2630:
2631: #-- <colgroup> tag
2632: sub start_colgroup {
2633: my ($target,$token) = @_;
2634: my $currentstring = '';
2635: if ($target eq 'web') {
2636: $currentstring = $token->[4];
2637: }
2638: return $currentstring;
2639: }
2640:
2641: sub end_colgroup {
2642: my ($target,$token) = @_;
2643: my $currentstring = '';
2644: if ($target eq 'web') {
2645: $currentstring = $token->[2];
2646: }
2647: return $currentstring;
2648: }
2649:
2650: #-- <del> tag
2651: sub start_del {
2652: my ($target,$token) = @_;
2653: my $currentstring = '';
2654: if ($target eq 'web') {
2655: $currentstring = $token->[4];
2656: }
2657: return $currentstring;
2658: }
2659:
2660: sub end_del {
2661: my ($target,$token) = @_;
2662: my $currentstring = '';
2663: if ($target eq 'web') {
2664: $currentstring = $token->[2];
2665: }
2666: return $currentstring;
2667: }
2668:
2669: #-- <fieldset> tag
2670: sub start_fieldset {
2671: my ($target,$token) = @_;
2672: my $currentstring = '';
2673: if ($target eq 'web') {
2674: $currentstring = $token->[4];
2675: }
2676: return $currentstring;
2677: }
2678:
2679: sub end_fieldset {
2680: my ($target,$token) = @_;
2681: my $currentstring = '';
2682: if ($target eq 'web') {
2683: $currentstring = $token->[2];
2684: }
2685: return $currentstring;
2686: }
2687:
2688: #-- <frame> tag
2689: sub start_frame {
2690: my ($target,$token) = @_;
2691: my $currentstring = '';
2692: if ($target eq 'web') {
2693: $currentstring = $token->[4];
2694: }
2695: return $currentstring;
2696: }
2697:
2698: sub end_frame {
2699: my ($target,$token) = @_;
2700: my $currentstring = '';
2701: if ($target eq 'web') {
2702: $currentstring = $token->[2];
2703: }
2704: return $currentstring;
2705: }
2706:
2707: #-- <iframe> tag
2708: sub start_iframe {
2709: my ($target,$token) = @_;
2710: my $currentstring = '';
2711: if ($target eq 'web') {
2712: $currentstring = $token->[4];
2713: }
2714: return $currentstring;
2715: }
2716:
2717: sub end_iframe {
2718: my ($target,$token) = @_;
2719: my $currentstring = '';
2720: if ($target eq 'web') {
2721: $currentstring = $token->[2];
2722: }
2723: return $currentstring;
2724: }
2725:
2726: #-- <ins> tag
2727: sub start_ins {
2728: my ($target,$token) = @_;
2729: my $currentstring = '';
2730: if ($target eq 'web') {
2731: $currentstring = $token->[4];
2732: }
2733: return $currentstring;
2734: }
2735:
2736: sub end_ins {
2737: my ($target,$token) = @_;
2738: my $currentstring = '';
2739: if ($target eq 'web') {
2740: $currentstring = $token->[2];
2741: }
2742: return $currentstring;
2743: }
2744:
2745: #-- <isindex> tag
2746: sub start_isindex {
2747: my ($target,$token) = @_;
2748: my $currentstring = '';
2749: if ($target eq 'web') {
2750: $currentstring = $token->[4];
2751: }
2752: return $currentstring;
2753: }
2754:
2755: sub end_isindex {
2756: my ($target,$token) = @_;
2757: my $currentstring = '';
2758: if ($target eq 'web') {
2759: $currentstring = $token->[2];
2760: }
2761: return $currentstring;
2762: }
2763:
2764: #-- <keygen> tag
2765: sub start_keygen {
2766: my ($target,$token) = @_;
2767: my $currentstring = '';
2768: if ($target eq 'web') {
2769: $currentstring = $token->[4];
2770: }
2771: return $currentstring;
2772: }
2773:
2774: sub end_keygen {
2775: my ($target,$token) = @_;
2776: my $currentstring = '';
2777: if ($target eq 'web') {
2778: $currentstring = $token->[2];
2779: }
2780: return $currentstring;
2781: }
2782:
2783: #-- <label> tag
2784: sub start_label {
2785: my ($target,$token) = @_;
2786: my $currentstring = '';
2787: if ($target eq 'web') {
2788: $currentstring = $token->[4];
2789: }
2790: return $currentstring;
2791: }
2792:
2793: sub end_label {
2794: my ($target,$token) = @_;
2795: my $currentstring = '';
2796: if ($target eq 'web') {
2797: $currentstring = $token->[2];
2798: }
2799: return $currentstring;
2800: }
2801:
2802: #-- <layer> tag
2803: sub start_layer {
2804: my ($target,$token) = @_;
2805: my $currentstring = '';
2806: if ($target eq 'web') {
2807: $currentstring = $token->[4];
2808: }
2809: return $currentstring;
2810: }
2811:
2812: sub end_layer {
2813: my ($target,$token) = @_;
2814: my $currentstring = '';
2815: if ($target eq 'web') {
2816: $currentstring = $token->[2];
2817: }
2818: return $currentstring;
2819: }
2820:
2821: #-- <legend> tag
2822: sub start_legend {
2823: my ($target,$token) = @_;
2824: my $currentstring = '';
2825: if ($target eq 'web') {
2826: $currentstring = $token->[4];
2827: }
2828: return $currentstring;
2829: }
2830:
2831: sub end_legend {
2832: my ($target,$token) = @_;
2833: my $currentstring = '';
2834: if ($target eq 'web') {
2835: $currentstring = $token->[2];
2836: }
2837: return $currentstring;
2838: }
2839:
2840: #-- <link> tag
2841: sub start_link {
2842: my ($target,$token) = @_;
2843: my $currentstring = '';
2844: if ($target eq 'web') {
2845: $currentstring = $token->[4];
2846: }
2847: return $currentstring;
2848: }
2849:
2850: sub end_link {
2851: my ($target,$token) = @_;
2852: my $currentstring = '';
2853: if ($target eq 'web') {
2854: $currentstring = $token->[2];
2855: }
2856: return $currentstring;
2857: }
2858:
2859: #-- <marquee> tag
2860: sub start_marquee {
2861: my ($target,$token) = @_;
2862: my $currentstring = '';
2863: if ($target eq 'web') {
2864: $currentstring = $token->[4];
2865: }
2866: return $currentstring;
2867: }
2868:
2869: sub end_marquee {
2870: my ($target,$token) = @_;
2871: my $currentstring = '';
2872: if ($target eq 'web') {
2873: $currentstring = $token->[2];
2874: }
2875: return $currentstring;
2876: }
2877:
2878: #-- <malticol> tag
2879: sub start_malticol {
2880: my ($target,$token) = @_;
2881: my $currentstring = '';
2882: if ($target eq 'web') {
2883: $currentstring = $token->[4];
2884: }
2885: return $currentstring;
2886: }
2887:
2888: sub end_malticol {
2889: my ($target,$token) = @_;
2890: my $currentstring = '';
2891: if ($target eq 'web') {
2892: $currentstring = $token->[2];
2893: }
2894: return $currentstring;
2895: }
2896:
2897: #-- <nobr> tag
2898: sub start_nobr {
2899: my ($target,$token) = @_;
2900: my $currentstring = '';
2901: if ($target eq 'web') {
2902: $currentstring = $token->[4];
2903: }
2904: return $currentstring;
2905: }
2906:
2907: sub end_nobr {
2908: my ($target,$token) = @_;
2909: my $currentstring = '';
2910: if ($target eq 'web') {
2911: $currentstring = $token->[2];
2912: }
2913: return $currentstring;
2914: }
2915:
2916: #-- <noembed> tag
2917: sub start_noembed {
2918: my ($target,$token) = @_;
2919: my $currentstring = '';
2920: if ($target eq 'web') {
2921: $currentstring = $token->[4];
2922: }
2923: return $currentstring;
2924: }
2925:
2926: sub end_noembed {
2927: my ($target,$token) = @_;
2928: my $currentstring = '';
2929: if ($target eq 'web') {
2930: $currentstring = $token->[2];
2931: }
2932: return $currentstring;
2933: }
2934:
2935: #-- <noframes> tag
2936: sub start_noframes {
2937: my ($target,$token) = @_;
2938: my $currentstring = '';
2939: if ($target eq 'web') {
2940: $currentstring = $token->[4];
2941: }
2942: return $currentstring;
2943: }
2944:
2945: sub end_noframes {
2946: my ($target,$token) = @_;
2947: my $currentstring = '';
2948: if ($target eq 'web') {
2949: $currentstring = $token->[2];
2950: }
2951: return $currentstring;
2952: }
2953:
2954: #-- <nolayer> tag
2955: sub start_nolayer {
2956: my ($target,$token) = @_;
2957: my $currentstring = '';
2958: if ($target eq 'web') {
2959: $currentstring = $token->[4];
2960: }
2961: return $currentstring;
2962: }
2963:
2964: sub end_nolayer {
2965: my ($target,$token) = @_;
2966: my $currentstring = '';
2967: if ($target eq 'web') {
2968: $currentstring = $token->[2];
2969: }
2970: return $currentstring;
2971: }
2972:
2973: #-- <noscript> tag
2974: sub start_noscript {
2975: my ($target,$token) = @_;
2976: my $currentstring = '';
2977: if ($target eq 'web') {
2978: $currentstring = $token->[4];
2979: }
2980: return $currentstring;
2981: }
2982:
2983: sub end_noscript {
2984: my ($target,$token) = @_;
2985: my $currentstring = '';
2986: if ($target eq 'web') {
2987: $currentstring = $token->[2];
2988: }
2989: return $currentstring;
2990: }
2991:
2992: #-- <object> tag
2993: sub start_object {
2994: my ($target,$token) = @_;
2995: my $currentstring = '';
2996: if ($target eq 'web') {
2997: $currentstring = $token->[4];
2998: }
2999: return $currentstring;
3000: }
3001:
3002: sub end_object {
3003: my ($target,$token) = @_;
3004: my $currentstring = '';
3005: if ($target eq 'web') {
3006: $currentstring = $token->[2];
3007: }
3008: return $currentstring;
3009: }
3010:
3011: #-- <optgroup> tag
3012: sub start_optgroup {
3013: my ($target,$token) = @_;
3014: my $currentstring = '';
3015: if ($target eq 'web') {
3016: $currentstring = $token->[4];
3017: }
3018: return $currentstring;
3019: }
3020:
3021: sub end_optgroup {
3022: my ($target,$token) = @_;
3023: my $currentstring = '';
3024: if ($target eq 'web') {
3025: $currentstring = $token->[2];
3026: }
3027: return $currentstring;
3028: }
3029:
3030: #-- <samp> tag
3031: sub start_samp {
3032: my ($target,$token) = @_;
3033: my $currentstring = '';
3034: if ($target eq 'web') {
3035: $currentstring = $token->[4];
3036: }
3037: return $currentstring;
3038: }
3039:
3040: sub end_samp {
3041: my ($target,$token) = @_;
3042: my $currentstring = '';
3043: if ($target eq 'web') {
3044: $currentstring = $token->[2];
3045: }
3046: return $currentstring;
3047: }
3048:
3049: #-- <server> tag
3050: sub start_server {
3051: my ($target,$token) = @_;
3052: my $currentstring = '';
3053: if ($target eq 'web') {
3054: $currentstring = $token->[4];
3055: }
3056: return $currentstring;
3057: }
3058:
3059: sub end_server {
3060: my ($target,$token) = @_;
3061: my $currentstring = '';
3062: if ($target eq 'web') {
3063: $currentstring = $token->[2];
3064: }
3065: return $currentstring;
3066: }
3067:
3068: #-- <spacer> tag
3069: sub start_spacer {
3070: my ($target,$token) = @_;
3071: my $currentstring = '';
3072: if ($target eq 'web') {
3073: $currentstring = $token->[4];
3074: }
3075: return $currentstring;
3076: }
3077:
3078: sub end_spacer {
3079: my ($target,$token) = @_;
3080: my $currentstring = '';
3081: if ($target eq 'web') {
3082: $currentstring = $token->[2];
3083: }
3084: return $currentstring;
3085: }
3086:
3087: #-- <span> tag
3088: sub start_span {
3089: my ($target,$token) = @_;
3090: my $currentstring = '';
3091: if ($target eq 'web') {
3092: $currentstring = $token->[4];
3093: }
3094: return $currentstring;
3095: }
3096:
3097: sub end_span {
3098: my ($target,$token) = @_;
3099: my $currentstring = '';
3100: if ($target eq 'web') {
3101: $currentstring = $token->[2];
3102: }
3103: return $currentstring;
3104: }
3105:
3106: #-- <tbody> tag
3107: sub start_tbody {
3108: my ($target,$token) = @_;
3109: my $currentstring = '';
3110: if ($target eq 'web') {
3111: $currentstring = $token->[4];
3112: }
3113: return $currentstring;
3114: }
3115:
3116: sub end_tbody {
3117: my ($target,$token) = @_;
3118: my $currentstring = '';
3119: if ($target eq 'web') {
3120: $currentstring = $token->[2];
3121: }
3122: return $currentstring;
3123: }
3124:
3125: #-- <tfoot> tag (end tag optional)
3126: sub start_tfoot {
3127: my ($target,$token) = @_;
3128: my $currentstring = '';
3129: if ($target eq 'web') {
3130: $currentstring = $token->[4];
3131: }
3132: return $currentstring;
3133: }
3134:
3135: sub end_tfoot {
3136: my ($target,$token) = @_;
3137: my $currentstring = '';
3138: if ($target eq 'web') {
3139: $currentstring = $token->[2];
3140: }
3141: return $currentstring;
3142: }
3143:
3144: #-- <thead> tag (end tag optional)
3145: sub start_thead {
3146: my ($target,$token) = @_;
3147: my $currentstring = '';
3148: if ($target eq 'web') {
3149: $currentstring = $token->[4];
3150: }
3151: return $currentstring;
3152: }
3153:
3154: sub end_thead {
3155: my ($target,$token) = @_;
3156: my $currentstring = '';
3157: if ($target eq 'web') {
3158: $currentstring = $token->[2];
3159: }
3160: return $currentstring;
3161: }
3162:
3163: #-- <var> tag
3164: sub start_var {
3165: my ($target,$token) = @_;
3166: my $currentstring = '';
3167: if ($target eq 'web') {
3168: $currentstring = $token->[4];
3169: } elsif ($target eq 'tex') {
3170: $currentstring = '\textit{';
3171: }
3172: return $currentstring;
3173: }
3174:
3175: sub end_var {
3176: my ($target,$token) = @_;
3177: my $currentstring = '';
3178: if ($target eq 'web') {
3179: $currentstring = $token->[2];
3180: } elsif ($target eq 'tex') {
3181: $currentstring = '}';
3182: }
3183: return $currentstring;
3184: }
3185:
3186: #-- <wbr> tag (end tag forbidden)
3187: sub start_wbr {
3188: my ($target,$token) = @_;
3189: my $currentstring = '';
3190: if ($target eq 'web') {
3191: $currentstring = $token->[4];
3192: }
3193: return $currentstring;
3194: }
3195:
3196: sub end_wbr {
3197: my ($target,$token) = @_;
3198: my $currentstring = '';
3199: if ($target eq 'web') {
3200: $currentstring = $token->[2];
3201: }
3202: return $currentstring;
3203: }
3204:
3205: #-- <hideweboutput> tag
3206: sub start_hideweboutput {
3207: my ($target,$token) = @_;
3208: if ($target eq 'web') {
3209: &Apache::lonxml::startredirection();
3210: }
3211: return '';
3212: }
3213:
3214: sub end_hideweboutput {
3215: my ($target,$token) = @_;
3216: my $currentstring = '';
3217: if ($target eq 'web') {
3218: $currentstring = &Apache::lonxml::endredirection();
3219: }
3220: return '';
3221: }
3222:
3223:
3224: sub image_replication {
3225: my $src = shift;
3226: if (not -e $src) {
3227: #replicates image itself
3228: &Apache::lonnet::repcopy($src);
3229: #replicates eps or ps
3230: my $newsrc = $src;
3231: $newsrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
3232: if (not -e $newsrc) {
3233: if (&Apache::lonnet::repcopy($newsrc) ne 'OK') {
3234: $newsrc =~ s/\.eps$/\.ps/;
3235: &Apache::lonnet::repcopy($newsrc);
3236: }
3237: }
3238: }
3239: return '';
3240: }
3241:
3242: sub recalc {
3243: my $argument = shift;
3244: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
3245: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
3246: my $value=$1;
3247: my $units=$2;
3248: if ($units eq 'cm') {
3249: $value*=10;
3250: } elsif ($units eq 'in') {
3251: $value*=25.4;
3252: } elsif ($units eq 'pc') {
3253: $value*=(25.4*12/72.27);
3254: } elsif ($units eq 'pt') {
3255: $value*=(25.4/72.27);
3256: }
3257: return $value.' mm';
3258: }
3259:
3260: 1;
3261: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to londefdef.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / xml