1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
4: # $Id: londefdef.pm,v 1.155 2003/07/25 10:44:36 www 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: #
29: # Copyright for TtHfunc and TtMfunc by Ian Hutchinson.
30: # TtHfunc and TtMfunc (the "Code") may be compiled and linked into
31: # binary executable programs or libraries distributed by the
32: # Michigan State University (the "Licensee"), but any binaries so
33: # distributed are hereby licensed only for use in the context
34: # of a program or computational system for which the Licensee is the
35: # primary author or distributor, and which performs substantial
36: # additional tasks beyond the translation of (La)TeX into HTML.
37: # The C source of the Code may not be distributed by the Licensee
38: # to any other parties under any circumstances.
39: #
40: #
41: # last modified 06/26/00 by Alexander Sakharuk
42: # 11/6,11/30,02/01/01,5/4 Gerd Kortemeyer
43: # 01/18 Alex Sakharuk
44:
45: package Apache::londefdef;
46:
47: use Apache::lonnet();
48: use strict;
49: use Apache::lonxml;
50: use Apache::File();
51: use Image::Magick;
52: use Apache::lonmenu();
53: use Apache::lonmeta();
54:
55: BEGIN {
56:
57: &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'));
58:
59: }
60:
61: #======================= TAG SUBROUTINES =====================
62: #-- <output>
63: sub start_output {
64: my ($target) = @_;
65: if ($target eq 'meta') { $Apache::lonxml::metamode--; }
66: return '';
67: }
68: sub end_output {
69: my ($target) = @_;
70: if ($target eq 'meta') { $Apache::lonxml::metamode++; }
71: return '';
72: }
73: #-- <m> tag
74: sub start_m {
75: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
76: my $currentstring = '';
77: if ($target eq 'web') {
78: $Apache::lonxml::prevent_entity_encode++;
79: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
80: $inside ='\\documentstyle{article}'.$inside;
81: &Apache::lonxml::debug("M is starting with:$inside:");
82: my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
83: if ($eval eq 'on') {
84: $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
85: #&Apache::lonxml::debug("M is evaulated to:$inside:");
86: }
87: $currentstring = &Apache::lontexconvert::converted(\$inside);
88: if ($Apache::lontexconvert::errorstring) {
89: &Apache::lonxml::warning("tth error: ".
90: $Apache::lontexconvert::errorstring);
91: $Apache::lontexconvert::errorstring='';
92: }
93: #&Apache::lonxml::debug("M is ends with:$currentstring:");
94: } elsif ($target eq 'tex') {
95: $currentstring = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
96: if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
97: } else {
98: my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
99: }
100: return $currentstring;
101: }
102:
103: sub end_m {
104: my ($target,$token) = @_;
105: my $currentstring = '';
106: if ($target eq 'web') {
107: $Apache::lonxml::prevent_entity_encode--;
108: } elsif ($target eq 'tex') {
109: $currentstring = "";
110: } elsif ($target eq 'meta') {
111: }
112: return $currentstring;
113: }
114:
115: sub start_tthoption {
116: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
117: my $result;
118: if ($target eq 'web') {
119: my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser);
120: $inside=~s/^\s*//;
121: if ($ENV{'browser.mathml'}) {
122: &tth::ttmoptions($inside);
123: } else {
124: &tth::tthoptions($inside);
125: }
126: }
127: return $result;
128: }
129:
130: sub end_tthoption {
131: my ($target,$token) = @_;
132: my $result;
133: return $result;
134: }
135:
136: #-- <html> tag
137: sub start_html {
138: my ($target,$token) = @_;
139: my $currentstring = '';
140: if ($ENV{'browser.mathml'}) {
141: &tth::ttminit();
142: if ($ENV{'browser.unicode'}) {
143: &tth::ttmoptions('-L -u1');
144: } else {
145: &tth::ttmoptions('-L -u0');
146: }
147: } else {
148: &tth::tthinit();
149: if ($ENV{'browser.unicode'}) {
150: &tth::tthoptions('-L -u1');
151: } else {
152: &tth::tthoptions('-L -u0');
153: }
154: }
155: if ($target eq 'web') {
156: $currentstring = &Apache::lonxml::xmlbegin().
157: &Apache::lonxml::fontsettings();
158: } elsif ($target eq 'tex') {
159: @Apache::londefdef::table = ();
160: $currentstring .= '\documentclass[letterpaper]{article}';
161: if ($ENV{'form.latex_type'}=~'batchmode') {$currentstring .='\batchmode';}
162: $currentstring .= '\newcommand{\keephidden}[1]{}
163: \renewcommand{\deg}{$^{\circ}$}
164: \usepackage{longtable}
165: \usepackage{textcomp}
166: \usepackage[dvips]{graphicx}
167: \usepackage{epsfig}\usepackage{calc}
168: \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}}';
169: }
170: return $currentstring;
171: }
172:
173: sub end_html {
174: my ($target,$token) = @_;
175: my $currentstring = '';
176: if ($target eq 'web') {
177: $currentstring = &Apache::lonxml::xmlend();
178: }
179: return $currentstring;
180: }
181:
182: #-- <head> tag
183: sub start_head {
184: my ($target,$token) = @_;
185: my $currentstring = '';
186: if ($target eq 'web') {
187: $currentstring = $token->[4];
188: }
189: return $currentstring;
190: }
191:
192: sub end_head {
193: my ($target,$token) = @_;
194: my $currentstring = '';
195: if ($target eq 'web') {
196: $currentstring = &Apache::lonmenu::registerurl(undef,$target).
197: $token->[2];
198: }
199: return $currentstring;
200: }
201:
202: #-- <map> tag
203: sub start_map {
204: my ($target,$token) = @_;
205: my $currentstring = '';
206: if ($target eq 'web') {
207: $currentstring = $token->[4];
208: }
209: return $currentstring;
210: }
211:
212: sub end_map {
213: my ($target,$token) = @_;
214: my $currentstring = '';
215: if ($target eq 'web') {
216: $currentstring = $token->[2];
217: }
218: return $currentstring;
219: }
220:
221: #-- <select> tag
222: sub start_select {
223: my ($target,$token) = @_;
224: my $currentstring = '';
225: if ($target eq 'web') {
226: $currentstring = $token->[4];
227: }
228: return $currentstring;
229: }
230:
231: sub end_select {
232: my ($target,$token) = @_;
233: my $currentstring = '';
234: if ($target eq 'web') {
235: $currentstring = $token->[2];
236: }
237: return $currentstring;
238: }
239:
240: #-- <option> tag
241: sub start_option {
242: my ($target,$token) = @_;
243: my $currentstring = '';
244: if ($target eq 'web') {
245: $currentstring = $token->[4];
246: }
247: return $currentstring;
248: }
249:
250: sub end_option {
251: my ($target,$token) = @_;
252: my $currentstring = '';
253: if ($target eq 'web') {
254: $currentstring = $token->[2];
255: }
256: return $currentstring;
257: }
258:
259: #-- <input> tag
260: sub start_input {
261: my ($target,$token) = @_;
262: my $currentstring = '';
263: if ($target eq 'web') {
264: $currentstring = $token->[4];
265: }
266: return $currentstring;
267: }
268:
269: sub end_input {
270: my ($target,$token) = @_;
271: my $currentstring = '';
272: if ($target eq 'web') {
273: $currentstring = $token->[2];
274: }
275: return $currentstring;
276: }
277:
278: #-- <textarea> tag
279: sub start_textarea {
280: my ($target,$token) = @_;
281: my $currentstring = '';
282: if ($target eq 'web') {
283: $currentstring = $token->[4];
284: }
285: return $currentstring;
286: }
287:
288: sub end_textarea {
289: my ($target,$token) = @_;
290: my $currentstring = '';
291: if ($target eq 'web') {
292: $currentstring = $token->[2];
293: }
294: return $currentstring;
295: }
296:
297: #-- <form> tag
298: sub start_form {
299: my ($target,$token) = @_;
300: my $currentstring = '';
301: if ($target eq 'web') {
302: $currentstring = $token->[4];
303: }
304: return $currentstring;
305: }
306:
307: sub end_form {
308: my ($target,$token) = @_;
309: my $currentstring = '';
310: if ($target eq 'web') {
311: $currentstring = $token->[2];
312: }
313: return $currentstring;
314: }
315:
316: #-- <title> tag
317: sub start_title {
318: my ($target,$token) = @_;
319: my $currentstring = '';
320: if ($target eq 'web') {
321: $currentstring = $token->[4];
322: } elsif ($target eq 'tex') {
323: $currentstring .= '\keephidden{'
324: }
325: if ($target eq 'meta') {
326: $currentstring='<title>';
327: &start_output();
328: }
329: return $currentstring;
330: }
331:
332: sub end_title {
333: my ($target,$token) = @_;
334: my $currentstring = '';
335: if ($target eq 'web') {
336: $currentstring = $token->[2];
337: } elsif ($target eq 'tex') {
338: $currentstring .= '}';
339: }
340: if ($target eq 'meta') {
341: &end_output();
342: $currentstring='</title>';
343: }
344: return $currentstring;
345: }
346:
347: #-- <meta> tag
348: sub start_meta {
349: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
350: my $currentstring = '';
351: if ($target eq 'web') {
352: my $args='';
353: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
354: if ($args eq '') {
355: &Apache::lonxml::get_all_text("/meta",$parser);
356: } else {
357: $currentstring = $token->[4];
358: }
359: } elsif ($target eq 'meta') {
360: unless (&Apache::lonxml::get_param
361: ('http-equiv',$parstack,$safeeval,undef,1)) {
362: my $name=$token->[2]->{'name'};
363: $name=~tr/A-Z/a-z/;
364: $name=~s/\s/\_/gs;
365: $name=~s/\W//gs;
366: if ($name) {
367: $currentstring='<'.$name;
368: my $display=&Apache::lonxml::get_param
369: ('display',$parstack,$safeeval,undef,1);
370: if ($display) {
371: $display=~s/\"/\'/g;
372: $currentstring.=' display="'.$display.'"';
373: }
374: $currentstring.='>'.
375: &Apache::lonxml::get_param
376: ('content',$parstack,$safeeval,undef,1).
377: '</'.$name.'>';
378: }
379: my $display=&Apache::lonxml::get_param
380: ('display',$parstack,$safeeval,undef,1);
381: if ($display) {
382: $display=&HTML::Entities::encode($display);
383: $currentstring.='<'.$name.'.display>'.$display.
384: '</'.$name.'.display>';
385: }
386: }
387: } elsif ($target eq 'tex') {
388: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
389: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
390: if ((not defined $content) && (not defined $name)) {
391: &Apache::lonxml::startredirection();
392: }
393: }
394: return $currentstring;
395: }
396:
397: sub end_meta {
398: my ($target,$token,$tagstack,$parstack,$parser) = @_;
399: my $currentstring = '';
400: if ($target eq 'web') {
401: my $args='';
402: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
403: if ($args ne '') {
404: $currentstring = $token->[4];
405: }
406: } elsif ($target eq 'tex') {
407: $currentstring=&Apache::lonxml::endredirection();
408: $currentstring='';
409: }
410: return $currentstring;
411: }
412:
413: # accessrule
414: sub start_accessrule {
415: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
416: my $currentstring = '';
417: my $eff=&Apache::lonxml::get_param
418: ('effect',$parstack,$safeeval,undef,1);
419: my $realm=&Apache::lonxml::get_param
420: ('realm',$parstack,$safeeval,undef,1);
421: my $role=&Apache::lonxml::get_param
422: ('role',$parstack,$safeeval,undef,1);
423: $realm=~s/\s+//g;
424: $realm=~s/\//\_/g;
425: $realm=~s/^\_//;
426: $realm=~s/\W/\;/g;
427: $role=~s/\s+//g;
428: $role=~s/\//\_/g;
429: $role=~s/\W/\;/g;
430: if ($target eq 'web') {
431: my $args='';
432: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
433: if ($args eq '') {
434: &Apache::lonxml::get_all_text("/accessrule",$parser);
435: } else {
436: $currentstring = $token->[4];
437: }
438: }
439: if ($target eq 'meta') {
440: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.'</rule>';
441: }
442: return $currentstring;
443: }
444:
445: sub end_accessrule {
446: my ($target,$token,$tagstack,$parstack,$parser) = @_;
447: my $currentstring = '';
448: if ($target eq 'web') {
449: my $args='';
450: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
451: if ($args ne '') {
452: $currentstring = $token->[4];
453: }
454: }
455: return $currentstring;
456: }
457:
458: #-- <body> tag
459: sub start_body {
460: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
461: my $currentstring = '';
462: if ($target eq 'web') {
463: if (!$Apache::lonxml::registered) {
464: $currentstring.='<head>'.
465: &Apache::lonmenu::registerurl(undef,$target).'</head>';
466: }
467: # Accessibility
468: if ($ENV{'browser.imagesuppress'} eq 'on') {
469: delete($token->[2]->{'background'});
470: }
471: if ($ENV{'browser.fontenhance'} eq 'on') {
472: my $style='';
473: foreach my $key (keys(%{$token->[2]})) {
474: if ($key =~ /^style$/i) {
475: $style.=$token->[2]->{$key}.';';
476: delete($token->[2]->{$key});
477: }
478: }
479: $token->[2]->{'style'}=$style.'; font-size: x-large;';
480: }
481: if ($ENV{'browser.blackwhite'} eq 'on') {
482: delete($token->[2]->{'font'});
483: delete($token->[2]->{'link'});
484: delete($token->[2]->{'alink'});
485: delete($token->[2]->{'vlink'});
486: delete($token->[2]->{'bgcolor'});
487: delete($token->[2]->{'background'});
488: }
489: # Overload loads
490: my $onLoad='';
491: foreach my $key (keys(%{$token->[2]})) {
492: if ($key =~ /^onload$/i) {
493: $onLoad.=$token->[2]->{$key}.';';
494: delete($token->[2]->{$key});
495: }
496: }
497: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
498: my $onUnload='';
499: foreach my $key (keys(%{$token->[2]})) {
500: if ($key =~ /^onunload$/i) {
501: $onUnload.=$token->[2]->{$key}.';';
502: delete($token->[2]->{$key});
503: }
504: }
505: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
506: ';'.$onUnload;
507:
508: $currentstring .= '<'.$token->[1];
509: foreach (keys %{$token->[2]}) {
510: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
511: }
512: $currentstring.='>';
513: if ($ENV{'request.state'} ne 'published') {
514: $currentstring.=(<<EDITBUTTON);
515: <form method="post">
516: <input type="submit" name="editmode" value="Edit" />
517: </form>
518: EDITBUTTON
519: } else {
520: $currentstring.=&Apache::lonmenu::menubuttons(undef,$target,1);
521: }
522: } elsif ($target eq 'tex') {
523: $currentstring = '\begin{document}';
524: }
525: return $currentstring;
526: }
527:
528: sub end_body {
529: my ($target,$token) = @_;
530: my $currentstring = '';
531: if ($target eq 'web') {
532: $currentstring = $token->[2];
533: } elsif ($target eq 'tex') {
534: $currentstring = '\end{document}';
535: }
536: return $currentstring;
537: }
538:
539: #-- <center> tag
540: sub start_center {
541: my ($target,$token) = @_;
542: my $currentstring = '';
543: if ($target eq 'web') {
544: $currentstring = $token->[4];
545: } elsif ($target eq 'tex') {
546: $currentstring = '\begin{center}';
547: }
548: return $currentstring;
549: }
550:
551: sub end_center {
552: my ($target,$token) = @_;
553: my $currentstring = '';
554: if ($target eq 'web') {
555: $currentstring = $token->[2];
556: } elsif ($target eq 'tex') {
557: $currentstring = '\end{center}';
558: }
559: return $currentstring;
560: }
561:
562: #-- <b> tag
563: sub start_b {
564: my ($target,$token) = @_;
565: my $currentstring = '';
566: if ($target eq 'web') {
567: $currentstring = $token->[4];
568: } elsif ($target eq 'tex') {
569: $currentstring = '\textbf{';
570: }
571: return $currentstring;
572: }
573:
574: sub end_b {
575: my ($target,$token) = @_;
576: my $currentstring = '';
577: if ($target eq 'web') {
578: $currentstring = $token->[2];
579: } elsif ($target eq 'tex') {
580: $currentstring = '}';
581: }
582: return $currentstring;
583: }
584:
585: #-- <strong> tag
586: sub start_strong {
587: my ($target,$token) = @_;
588: my $currentstring = '';
589: if ($target eq 'web') {
590: $currentstring = $token->[4];
591: } elsif ($target eq 'tex') {
592: $currentstring = '\textbf{';
593: }
594: return $currentstring;
595: }
596:
597: sub end_strong {
598: my ($target,$token) = @_;
599: my $currentstring = '';
600: if ($target eq 'web') {
601:
602: $currentstring = $token->[2];
603: } elsif ($target eq 'tex') {
604: $currentstring = '}';
605: }
606: return $currentstring;
607: }
608:
609: #-- <h1> tag
610: sub start_h1 {
611: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
612: my $currentstring = '';
613: if ($target eq 'web') {
614: $currentstring .= $token->[4];
615: } elsif ($target eq 'tex') {
616: my $pre;
617: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
618: if (($align eq 'center') || (not defined $align)) {
619: $pre='\begin{center}';
620: } elsif ($align eq 'left') {
621: $pre='\rlap{';
622: } elsif ($align eq 'right') {
623: $pre=' \hfill \llap{';
624: }
625: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
626: if (not defined $TeXsize) {$TeXsize="large";}
627: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
628: } elsif ($target eq 'meta') {
629: $currentstring='<subject>';
630: &start_output();
631: }
632: return $currentstring;
633: }
634:
635: sub end_h1 {
636: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
637: my $currentstring = '';
638: if ($target eq 'web') {
639: $currentstring .= $token->[2];
640: } elsif ($target eq 'tex') {
641: my $post;
642: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
643: if (($align eq 'center') || (not defined $align)) {
644: $post='\end{center}';
645: } elsif ($align eq 'left') {
646: $post='} \hfill'.'\vskip 0 mm ';
647: } elsif ($align eq 'right') {
648: $post='}'.'\vskip 0 mm ';
649: }
650: $currentstring .= '}}'.$post;
651: } elsif ($target eq 'meta') {
652: &end_output();
653: $currentstring='</subject>';
654: }
655: return $currentstring;
656: }
657:
658: #-- <h2> tag
659: sub start_h2 {
660: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
661: my $currentstring = '';
662: if ($target eq 'web') {
663: $currentstring .= $token->[4];
664: } elsif ($target eq 'tex') {
665: my $pre;
666: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
667: if (($align eq 'center') || (not defined $align)) {
668: $pre='\begin{center}';
669: } elsif ($align eq 'left') {
670: $pre='\rlap{';
671: } elsif ($align eq 'right') {
672: $pre=' \hfill \llap{';
673: }
674: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
675: if (not defined $TeXsize) {$TeXsize="large";}
676: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
677: }
678: return $currentstring;
679: }
680:
681: sub end_h2 {
682: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
683: my $currentstring = '';
684: if ($target eq 'web') {
685: $currentstring .= $token->[2];
686: } elsif ($target eq 'tex') {
687: my $post;
688: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
689: if (($align eq 'center') || (not defined $align)) {
690: $post='\end{center}';
691: } elsif ($align eq 'left') {
692: $post='} \hfill'.'\vskip 0 mm ';
693: } elsif ($align eq 'right') {
694: $post='}'.'\vskip 0 mm ';
695: }
696: $currentstring .= '}}'.$post;
697: }
698: return $currentstring;
699: }
700:
701: #-- <h3> tag
702: sub start_h3 {
703: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
704: my $currentstring = '';
705: if ($target eq 'web') {
706: $currentstring .= $token->[4];
707: } elsif ($target eq 'tex') {
708: my $pre;
709: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
710: if (($align eq 'center') || (not defined $align)) {
711: $pre='\begin{center}';
712: } elsif ($align eq 'left') {
713: $pre='\rlap{';
714: } elsif ($align eq 'right') {
715: $pre=' \hfill \llap{';
716: }
717: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
718: if (not defined $TeXsize) {$TeXsize="large";}
719: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
720: }
721: return $currentstring;
722: }
723:
724: sub end_h3 {
725: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
726: my $currentstring = '';
727: if ($target eq 'web') {
728: $currentstring .= $token->[2];
729: } elsif ($target eq 'tex') {
730: my $post;
731: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
732: if (($align eq 'center') || (not defined $align)) {
733: $post='\end{center}';
734: } elsif ($align eq 'left') {
735: $post='} \hfill'.'\vskip 0 mm ';
736: } elsif ($align eq 'right') {
737: $post='}'.'\vskip 0 mm ';
738: }
739: $currentstring .= '}}'.$post;
740: }
741: return $currentstring;
742: }
743:
744: #-- <h4> tag
745: sub start_h4 {
746: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
747: my $currentstring = '';
748: if ($target eq 'web') {
749: $currentstring .= $token->[4];
750: } elsif ($target eq 'tex') {
751: my $pre;
752: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
753: if (($align eq 'center') || (not defined $align)) {
754: $pre='\begin{center}';
755: } elsif ($align eq 'left') {
756: $pre='\rlap{';
757: } elsif ($align eq 'right') {
758: $pre=' \hfill \llap{';
759: }
760: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
761: if (not defined $TeXsize) {$TeXsize="large";}
762: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
763: }
764: return $currentstring;
765: }
766:
767: sub end_h4 {
768: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
769: my $currentstring = '';
770: if ($target eq 'web') {
771: $currentstring .= $token->[2];
772: } elsif ($target eq 'tex') {
773: my $post;
774: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
775: if (($align eq 'center') || (not defined $align)) {
776: $post='\end{center}';
777: } elsif ($align eq 'left') {
778: $post='} \hfill'.'\vskip 0 mm ';
779: } elsif ($align eq 'right') {
780: $post='}'.'\vskip 0 mm ';
781: }
782: $currentstring .= '}}'.$post;
783: }
784: return $currentstring;
785: }
786:
787: #-- <h5> tag
788: sub start_h5 {
789: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
790: my $currentstring = '';
791: if ($target eq 'web') {
792: $currentstring .= $token->[4];
793: } elsif ($target eq 'tex') {
794: my $pre;
795: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
796: if (($align eq 'center') || (not defined $align)) {
797: $pre='\begin{center}';
798: } elsif ($align eq 'left') {
799: $pre='\rlap{';
800: } elsif ($align eq 'right') {
801: $pre=' \hfill \llap{';
802: }
803: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
804: if (not defined $TeXsize) {$TeXsize="large";}
805: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
806: }
807: return $currentstring;
808: }
809:
810: sub end_h5 {
811: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
812: my $currentstring = '';
813: if ($target eq 'web') {
814: $currentstring .= $token->[2];
815: } elsif ($target eq 'tex') {
816: my $post;
817: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
818: if (($align eq 'center') || (not defined $align)) {
819: $post='\end{center}';
820: } elsif ($align eq 'left') {
821: $post='} \hfill'.'\vskip 0 mm ';
822: } elsif ($align eq 'right') {
823: $post='}'.'\vskip 0 mm ';
824: }
825: $currentstring .= '}}'.$post;
826: }
827: return $currentstring;
828: }
829:
830: #-- <h6> tag
831: sub start_h6 {
832: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
833: my $currentstring = '';
834: if ($target eq 'web') {
835: $currentstring .= $token->[4];
836: } elsif ($target eq 'tex') {
837: my $pre;
838: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
839: if (($align eq 'center') || (not defined $align)) {
840: $pre='\begin{center}';
841: } elsif ($align eq 'left') {
842: $pre='\rlap{';
843: } elsif ($align eq 'right') {
844: $pre=' \hfill \llap{';
845: }
846: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
847: if (not defined $TeXsize) {$TeXsize="large";}
848: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
849: }
850: return $currentstring;
851: }
852:
853: sub end_h6 {
854: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
855: my $currentstring = '';
856: if ($target eq 'web') {
857: $currentstring .= $token->[2];
858: } elsif ($target eq 'tex') {
859: my $post;
860: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
861: if (($align eq 'center') || (not defined $align)) {
862: $post='\end{center}';
863: } elsif ($align eq 'left') {
864: $post='} \hfill'.'\vskip 0 mm ';
865: } elsif ($align eq 'right') {
866: $post='}'.'\vskip 0 mm ';
867: }
868: $currentstring .= '}}'.$post;
869: }
870: return $currentstring;
871: }
872:
873: #--- <cite> tag
874: sub start_cite {
875: my ($target,$token) = @_;
876: my $currentstring = '';
877: if ($target eq 'web') {
878: $currentstring .= $token->[4];
879: } elsif ($target eq 'tex') {
880: $currentstring .= "\\textit{";
881: }
882: return $currentstring;
883: }
884:
885: sub end_cite {
886: my ($target,$token) = @_;
887: my $currentstring = '';
888: if ($target eq 'web') {
889: $currentstring .= $token->[2];
890: } elsif ($target eq 'tex') {
891: $currentstring .= "}";
892: }
893: return $currentstring;
894: }
895:
896: #-- <i> tag
897: sub start_i {
898: my ($target,$token) = @_;
899: my $currentstring = '';
900: if ($target eq 'web') {
901: $currentstring .= $token->[4];
902: } elsif ($target eq 'tex') {
903: $currentstring .= '\textit{';
904: }
905: return $currentstring;
906: }
907:
908: sub end_i {
909: my ($target,$token) = @_;
910: my $currentstring = '';
911: if ($target eq 'web') {
912: $currentstring .= $token->[2];
913: } elsif ($target eq 'tex') {
914: $currentstring .= '}';
915: }
916: return $currentstring;
917: }
918:
919: #-- <address> tag
920: sub start_address {
921: my ($target,$token) = @_;
922: my $currentstring = '';
923: if ($target eq 'web') {
924: $currentstring .= $token->[4];
925: } elsif ($target eq 'tex') {
926: $currentstring .= "\\textit{";
927: }
928: return $currentstring;
929: }
930:
931: sub end_address {
932: my ($target,$token) = @_;
933: my $currentstring = '';
934: if ($target eq 'web') {
935: $currentstring .= $token->[2];
936: } elsif ($target eq 'tex') {
937: $currentstring .= "}";
938: }
939: return $currentstring;
940: }
941:
942: #-- <dfn> tag
943: sub start_dfn {
944: my ($target,$token) = @_;
945: my $currentstring = '';
946: if ($target eq 'web') {
947: $currentstring .= $token->[4];
948: } elsif ($target eq 'tex') {
949: $currentstring .= "\\textit{";
950: }
951: return $currentstring;
952: }
953:
954: sub end_dfn {
955: my ($target,$token) = @_;
956: my $currentstring = '';
957: if ($target eq 'web') {
958: $currentstring .= $token->[2];
959: } elsif ($target eq 'tex') {
960: $currentstring .= "}";
961: }
962: return $currentstring;
963: }
964:
965: #-- <tt> tag
966: sub start_tt {
967: my ($target,$token) = @_;
968: my $currentstring = '';
969: if ($target eq 'web') {
970: $currentstring .= $token->[4];
971: } elsif ($target eq 'tex') {
972: $currentstring .= '\texttt{';
973: }
974: return $currentstring;
975: }
976:
977: sub end_tt {
978: my ($target,$token) = @_;
979: my $currentstring = '';
980: if ($target eq 'web') {
981: $currentstring .= $token->[2];
982: } elsif ($target eq 'tex') {
983: $currentstring .= '}';
984: }
985: return $currentstring;
986: }
987:
988: #-- <kbd> tag
989: sub start_kbd {
990: my ($target,$token) = @_;
991: my $currentstring = '';
992: if ($target eq 'web') {
993: $currentstring .= $token->[4];
994: } elsif ($target eq 'tex') {
995: $currentstring .= "\\texttt";
996: }
997: return $currentstring;
998: }
999:
1000: sub end_kbd {
1001: my ($target,$token) = @_;
1002: my $currentstring = '';
1003: if ($target eq 'web') {
1004: $currentstring .= $token->[2];
1005: } elsif ($target eq 'tex') {
1006: $currentstring .= "}";
1007: }
1008: return $currentstring;
1009: }
1010:
1011: #-- <code> tag
1012: sub start_code {
1013: my ($target,$token) = @_;
1014: my $currentstring = '';
1015: if ($target eq 'web') {
1016: $currentstring .= $token->[4];
1017: } elsif ($target eq 'tex') {
1018: $currentstring .= '\texttt{';
1019: }
1020: return $currentstring;
1021: }
1022:
1023: sub end_code {
1024: my ($target,$token) = @_;
1025: my $currentstring = '';
1026: if ($target eq 'web') {
1027: $currentstring .= $token->[2];
1028: } elsif ($target eq 'tex') {
1029: $currentstring .= '}';
1030: }
1031: return $currentstring;
1032: }
1033:
1034: #-- <em> tag
1035: sub start_em {
1036: my ($target,$token) = @_;
1037: my $currentstring = '';
1038: if ($target eq 'web') {
1039: $currentstring .= $token->[4];
1040: } elsif ($target eq 'tex') {
1041: $currentstring .= '\emph{';
1042: }
1043: return $currentstring;
1044: }
1045:
1046: sub end_em {
1047: my ($target,$token) = @_;
1048: my $currentstring = '';
1049: if ($target eq 'web') {
1050: $currentstring .= $token->[2];
1051: } elsif ($target eq 'tex') {
1052: $currentstring .= '}';
1053: }
1054: return $currentstring;
1055: }
1056:
1057: #-- <q> tag
1058: sub start_q {
1059: my ($target,$token) = @_;
1060: my $currentstring = '';
1061: if ($target eq 'web') {
1062: $currentstring .= $token->[4];
1063: } elsif ($target eq 'tex') {
1064: $currentstring .= "\\emph{";
1065: }
1066: return $currentstring;
1067: }
1068:
1069: sub end_q {
1070: my ($target,$token) = @_;
1071: my $currentstring = '';
1072: if ($target eq 'web') {
1073: $currentstring .= $token->[2];
1074: } elsif ($target eq 'tex') {
1075: $currentstring .= "}";
1076: }
1077: return $currentstring;
1078: }
1079:
1080: #-- <p> tag
1081: sub start_p {
1082: my ($target,$token) = @_;
1083: my $currentstring = '';
1084: if ($target eq 'web') {
1085: $currentstring .= $token->[4];
1086: } elsif ($target eq 'tex') {
1087: $currentstring .= '\par ';
1088: }
1089: return $currentstring;
1090: }
1091:
1092: sub end_p {
1093: my ($target,$token) = @_;
1094: my $currentstring = '';
1095: if ($target eq 'web') {
1096: $currentstring .= $token->[2];
1097: }
1098: return $currentstring;
1099: }
1100:
1101: #-- <br> tag
1102: sub start_br {
1103: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1104: my $currentstring = '';
1105: if ($target eq 'web') {
1106: $currentstring .= $token->[4];
1107: } elsif ($target eq 'tex') {
1108: if ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') {
1109: $currentstring .= '\vskip 0.2 mm ';
1110: }
1111: }
1112: return $currentstring;
1113: }
1114:
1115: sub end_br {
1116: my ($target,$token) = @_;
1117: my $currentstring = '';
1118: if ($target eq 'web') {
1119: $currentstring .= $token->[2];
1120: }
1121: return $currentstring;
1122: }
1123:
1124: #-- <big> tag
1125: sub start_big {
1126: my ($target,$token) = @_;
1127: my $currentstring = '';
1128: if ($target eq 'web') {
1129: $currentstring .= $token->[4];
1130: } elsif ($target eq 'tex') {
1131: $currentstring .= '{\large ';
1132: }
1133: return $currentstring;
1134: }
1135:
1136: sub end_big {
1137: my ($target,$token) = @_;
1138: my $currentstring = '';
1139: if ($target eq 'web') {
1140: $currentstring .= $token->[2];
1141: } elsif ($target eq 'tex') {
1142: $currentstring .= '}';
1143: }
1144: return $currentstring;
1145: }
1146:
1147: #-- <small> tag
1148: sub start_small {
1149: my ($target,$token) = @_;
1150: my $currentstring = '';
1151: if ($target eq 'web') {
1152: $currentstring .= $token->[4];
1153: } elsif ($target eq 'tex') {
1154: $currentstring .= '{\footnotesize ';
1155: }
1156: return $currentstring;
1157: }
1158:
1159: sub end_small {
1160: my ($target,$token) = @_;
1161: my $currentstring = '';
1162: if ($target eq 'web') {
1163: $currentstring .= $token->[2];
1164: } elsif ($target eq 'tex') {
1165: $currentstring .= '}';
1166: }
1167: return $currentstring;
1168: }
1169:
1170: #-- <basefont> tag
1171: sub start_basefont {
1172: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1173: my $currentstring = '';
1174: if ($target eq 'web') {
1175: $currentstring = $token->[4];
1176: } elsif ($target eq 'tex') {
1177: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1178: if (defined $basesize) {
1179: $currentstring = '{\\'.$basesize.' ';
1180: }
1181: }
1182: return $currentstring;
1183: }
1184:
1185: sub end_basefont {
1186: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1187: my $currentstring = '';
1188: if ($target eq 'web') {
1189: $currentstring = $token->[4];
1190: } elsif ($target eq 'tex') {
1191: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1192: if (defined $basesize) {
1193: $currentstring = '}';
1194: }
1195: }
1196: return $currentstring;
1197: }
1198:
1199: #-- <font> tag
1200: sub start_font {
1201: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1202: my $currentstring = '';
1203: if ($target eq 'web') {
1204: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1205: if ($face=~/symbol/i) {
1206: $Apache::lonxml::prevent_entity_encode++;
1207: } else {
1208: if (($ENV{'browser.fontenhance'} eq 'on') ||
1209: ($ENV{'browser.blackwhite'} eq 'on')) { return ''; }
1210: }
1211: $currentstring = $token->[4];
1212: } elsif ($target eq 'tex') {
1213: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1214: if (defined $fontsize) {
1215: $currentstring = '{\\'.$fontsize.' ';
1216: }
1217: }
1218: return $currentstring;
1219: }
1220:
1221: sub end_font {
1222: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1223: my $currentstring = '';
1224: if ($target eq 'web') {
1225: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1226: if ($face=~/symbol/i) {$Apache::lonxml::prevent_entity_encode--;}
1227: $currentstring = $token->[2];
1228: } elsif ($target eq 'tex') {
1229: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1230: if (defined $fontsize) {
1231: $currentstring = '}';
1232: }
1233: }
1234: return $currentstring;
1235: }
1236:
1237: #-- <strike> tag
1238: sub start_strike {
1239: my ($target,$token) = @_;
1240: my $currentstring = '';
1241: if ($target eq 'web') {
1242: $currentstring .= $token->[4];
1243: } elsif ($target eq 'tex') {
1244: &Apache::lonxml::startredirection();
1245: }
1246: return $currentstring;
1247: }
1248:
1249: sub end_strike {
1250: my ($target,$token) = @_;
1251: my $currentstring = '';
1252: if ($target eq 'web') {
1253: $currentstring .= $token->[2];
1254: } elsif ($target eq 'tex') {
1255: $currentstring=&Apache::lonxml::endredirection();
1256: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1257: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1258: $currentstring=~s/(\S)\s*$/$1\}/;
1259: }
1260: return $currentstring;
1261: }
1262:
1263: #-- <s> tag
1264: sub start_s {
1265: my ($target,$token) = @_;
1266: my $currentstring = '';
1267: if ($target eq 'web') {
1268: $currentstring .= $token->[4];
1269: } elsif ($target eq 'tex') {
1270: &Apache::lonxml::startredirection();
1271: }
1272: return $currentstring;
1273: }
1274:
1275: sub end_s {
1276: my ($target,$token) = @_;
1277: my $currentstring = '';
1278: if ($target eq 'web') {
1279: $currentstring .= $token->[2];
1280: } elsif ($target eq 'tex') {
1281: $currentstring=&Apache::lonxml::endredirection();
1282: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1283: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1284: $currentstring=~s/(\S)\s*$/$1\}/;
1285: }
1286: return $currentstring;
1287: }
1288:
1289: #-- <sub> tag
1290: sub start_sub {
1291: my ($target,$token) = @_;
1292: my $currentstring = '';
1293: if ($target eq 'web') {
1294: $currentstring .= $token->[4];
1295: } elsif ($target eq 'tex') {
1296: $currentstring .= "\$_{ ";
1297: }
1298: return $currentstring;
1299: }
1300:
1301: sub end_sub {
1302: my ($target,$token) = @_;
1303: my $currentstring = '';
1304: if ($target eq 'web') {
1305: $currentstring .= $token->[2];
1306: } elsif ($target eq 'tex') {
1307: $currentstring .= " }\$";
1308: }
1309: return $currentstring;
1310: }
1311:
1312: #-- <sup> tag
1313: sub start_sup {
1314: my ($target,$token) = @_;
1315: my $currentstring = '';
1316: if ($target eq 'web') {
1317: $currentstring .= $token->[4];
1318: } elsif ($target eq 'tex') {
1319: $currentstring .= "\$^{ ";
1320: }
1321: return $currentstring;
1322: }
1323:
1324: sub end_sup {
1325: my ($target,$token) = @_;
1326: my $currentstring = '';
1327: if ($target eq 'web') {
1328: $currentstring .= $token->[2];
1329: } elsif ($target eq 'tex') {
1330: $currentstring .= " }\$";
1331: }
1332: return $currentstring;
1333: }
1334:
1335: #-- <hr> tag
1336: sub start_hr {
1337: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1338: my $currentstring = '';
1339: if ($target eq 'web') {
1340: $currentstring .= $token->[4];
1341: } elsif ($target eq 'tex') {
1342: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1343: if (defined $LaTeXwidth) {
1344: if ($LaTeXwidth=~/^%/) {
1345: substr($LaTeXwidth,0,1)='';
1346: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1347: }
1348: } else {
1349: $LaTeXwidth ='0.9\textwidth';
1350: }
1351: my ($pre,$post);
1352: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1353: if (($align eq 'center') || (not defined $align)) {
1354: $pre=''; $post='';
1355: } elsif ($align eq 'left') {
1356: $pre='\rlap{'; $post='} \hfill';
1357: } elsif ($align eq 'right') {
1358: $pre=' \hfill \llap{'; $post='}';
1359: }
1360: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1361: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1362: }
1363: return $currentstring;
1364: }
1365:
1366: sub end_hr {
1367: my ($target,$token) = @_;
1368: my $currentstring = '';
1369: if ($target eq 'web') {
1370: $currentstring .= $token->[2];
1371: }
1372: return $currentstring;
1373: }
1374:
1375: #-- <div> tag
1376: sub start_div {
1377: my ($target,$token) = @_;
1378: my $currentstring = '';
1379: if ($target eq 'web') {
1380: $currentstring .= $token->[4];
1381: }
1382: return $currentstring;
1383: }
1384:
1385: sub end_div {
1386: my ($target,$token) = @_;
1387: my $currentstring = '';
1388: if ($target eq 'web') {
1389: $currentstring .= $token->[2];
1390: }
1391: return $currentstring;
1392: }
1393:
1394: #-- <a> tag
1395: sub start_a {
1396: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1397: my $currentstring = '';
1398: if ($target eq 'web') {
1399: $currentstring .= $token->[4];
1400: } elsif ($target eq 'tex') {
1401: my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1402: $a=~s/([^\\])%/$1\\\%/g;
1403: $currentstring .= '\ref{'.$a.'}';
1404: }
1405: return $currentstring;
1406: }
1407:
1408: sub end_a {
1409: my ($target,$token,$tagstack,$parstack,$safeeval) = @_;
1410: my $currentstring = '';
1411: if ($target eq 'web') {
1412: $currentstring .= $token->[2];
1413: }
1414: return $currentstring;
1415: }
1416:
1417: #-- <li> tag
1418: sub start_li {
1419: my ($target,$token,$tagstack,$parstack,$safeeval) = @_;
1420: my $currentstring = '';
1421: if ($target eq 'web') {
1422: $currentstring = $token->[4];
1423: } elsif ($target eq 'tex') {
1424: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,1);
1425: if ($type=~/circle/) {
1426: $currentstring .= ' \item[o] ';
1427: } elsif ($type=~/square/) {
1428: $currentstring .= ' \item[$\Box$] ';
1429: } elsif ($type ne '') {
1430: $currentstring .= ' \item['.$type.'] ';
1431: } else {
1432: $currentstring .= ' \item ';
1433: }
1434: }
1435: return $currentstring;
1436: }
1437:
1438: sub end_li {
1439: my ($target,$token) = @_;
1440: my $currentstring = '';
1441: if ($target eq 'web') {
1442: $currentstring = $token->[2];
1443: }
1444: return $currentstring;
1445: }
1446:
1447: #-- <u> tag
1448: sub start_u {
1449: my ($target,$token) = @_;
1450: my $currentstring = '';
1451: if ($target eq 'web') {
1452: $currentstring .= $token->[4];
1453: } elsif ($target eq 'tex') {
1454: &Apache::lonxml::startredirection();
1455: }
1456: return $currentstring;
1457: }
1458:
1459: sub end_u {
1460: my ($target,$token) = @_;
1461: my $currentstring = '';
1462: if ($target eq 'web') {
1463: $currentstring .= $token->[2];
1464: } elsif ($target eq 'tex') {
1465: $currentstring=&Apache::lonxml::endredirection();
1466: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1467: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1468: $currentstring=~s/(\S)\s*$/$1\}/;
1469: }
1470: return $currentstring;
1471: }
1472:
1473: #-- <ul> tag
1474: sub start_ul {
1475: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1476: my $currentstring = '';
1477: if ($target eq 'web') {
1478: $currentstring = $token->[4];
1479: } elsif ($target eq 'tex') {
1480: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1481: if ($TeXtype eq 'disc') {
1482: $currentstring .= ' \renewcommand{\labelitemi}{$\bullet$}
1483: \renewcommand{\labelitemii}{$\bullet$}
1484: \renewcommand{\labelitemiii}{$\bullet$}
1485: \renewcommand{\labelitemiv}{$\bullet$}';
1486: } elsif ($TeXtype eq 'circle') {
1487: $currentstring .= ' \renewcommand{\labelitemi}{$\circ$}
1488: \renewcommand{\labelitemii}{$\circ$}
1489: \renewcommand{\labelitemiii}{$\circ$}
1490: \renewcommand{\labelitemiv}{$\circ$}';
1491: } elsif ($TeXtype eq 'square') {
1492: $currentstring .= ' \renewcommand{\labelitemi}{$\diamond$}
1493: \renewcommand{\labelitemii}{$\diamond$}
1494: \renewcommand{\labelitemiii}{$\diamond$}
1495: \renewcommand{\labelitemiv}{$\diamond$}';
1496: }
1497: $currentstring .= '\begin{itemize}';
1498: }
1499: return $currentstring;
1500: }
1501:
1502: sub end_ul {
1503: my ($target,$token) = @_;
1504: my $currentstring = '';
1505: if ($target eq 'web') {
1506: $currentstring = $token->[2];
1507: } elsif ($target eq 'tex') {
1508: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}
1509: \renewcommand{\labelitemii}{$\bullet$}
1510: \renewcommand{\labelitemiii}{$\bullet$}
1511: \renewcommand{\labelitemiv}{$\bullet$}';
1512: }
1513: return $currentstring;
1514: }
1515:
1516: #-- <menu> tag
1517: sub start_menu {
1518: my ($target,$token) = @_;
1519: my $currentstring = '';
1520: if ($target eq 'web') {
1521: $currentstring = $token->[4];
1522: } elsif ($target eq 'tex') {
1523: $currentstring = " \\begin{itemize} ";
1524: }
1525: return $currentstring;
1526: }
1527:
1528: sub end_menu {
1529: my ($target,$token) = @_;
1530: my $currentstring = '';
1531: if ($target eq 'web') {
1532: $currentstring = $token->[2];
1533: } elsif ($target eq 'tex') {
1534: $currentstring = " \\end{itemize}";
1535: }
1536: return $currentstring;
1537: }
1538:
1539: #-- <dir> tag
1540: sub start_dir {
1541: my ($target,$token) = @_;
1542: my $currentstring = '';
1543: if ($target eq 'web') {
1544: $currentstring = $token->[4];
1545: } elsif ($target eq 'tex') {
1546: $currentstring = " \\begin{itemize} ";
1547: }
1548: return $currentstring;
1549: }
1550:
1551: sub end_dir {
1552: my ($target,$token) = @_;
1553: my $currentstring = '';
1554: if ($target eq 'web') {
1555: $currentstring = $token->[2];
1556: } elsif ($target eq 'tex') {
1557: $currentstring = " \\end{itemize}";
1558: }
1559: return $currentstring;
1560: }
1561:
1562: #-- <ol> tag
1563: sub start_ol {
1564: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1565: my $currentstring = '';
1566: if ($target eq 'web') {
1567: $currentstring = $token->[4];
1568: } elsif ($target eq 'tex') {
1569: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1570: if ($type eq '1') {
1571: $currentstring .= ' \renewcommand{\labelenumi}{\arabic{enumi}.}
1572: \renewcommand{\labelenumii}{\arabic{enumii}.}
1573: \renewcommand{\labelenumiii}{\arabic{enumiii}.}
1574: \renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1575: } elsif ($type eq 'A') {
1576: $currentstring .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}
1577: \renewcommand{\labelenumii}{\Alph{enumii}.}
1578: \renewcommand{\labelenumiii}{\Alph{enumiii}.}
1579: \renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1580: } elsif ($type eq 'a') {
1581: $currentstring .= ' \renewcommand{\labelenumi}{\alph{enumi}.}
1582: \renewcommand{\labelenumii}{\alph{enumii}.}
1583: \renewcommand{\labelenumiii}{\alph{enumiii}.}
1584: \renewcommand{\labelenumiv}{\alph{enumiv}.} ';
1585: } elsif ($type eq 'i') {
1586: $currentstring .= ' \renewcommand{\labelenumi}{\roman{enumi}.}
1587: \renewcommand{\labelenumii}{\roman{enumii}.}
1588: \renewcommand{\labelenumiii}{\roman{enumiii}.}
1589: \renewcommand{\labelenumiv}{\roman{enumiv}.} ';
1590: } elsif ($type eq 'I') {
1591: $currentstring .= ' \renewcommand{\labelenumi}{\Roman{enumi}.}
1592: \renewcommand{\labelenumii}{\Roman{enumii}.}
1593: \renewcommand{\labelenumiii}{\Roman{enumiii}.}
1594: \renewcommand{\labelenumiv}{\Roman{enumiv}.} ';
1595: }
1596: $currentstring .= '\begin{enumerate}';
1597: }
1598: return $currentstring;
1599: }
1600:
1601: sub end_ol {
1602: my ($target,$token) = @_;
1603: my $currentstring = '';
1604: if ($target eq 'web') {
1605: $currentstring = $token->[2];
1606: } elsif ($target eq 'tex') {
1607: $currentstring = '\end{enumerate} \renewcommand{\labelenumi}{\arabic{enumi}.}
1608: \renewcommand{\labelenumii}{\arabic{enumii}.}
1609: \renewcommand{\labelenumiii}{\arabic{enumiii}.}
1610: \renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1611: }
1612: return $currentstring;
1613: }
1614:
1615: #-- <dl> tag
1616: sub start_dl {
1617: my ($target,$token) = @_;
1618: my $currentstring = '';
1619: if ($target eq 'web') {
1620: $currentstring = $token->[4];
1621: } elsif ($target eq 'tex') {
1622: $currentstring = '\begin{description}';
1623: }
1624: return $currentstring;
1625: }
1626:
1627: sub end_dl {
1628: my ($target,$token) = @_;
1629: my $currentstring = '';
1630: if ($target eq 'web') {
1631: $currentstring = $token->[2];
1632: } elsif ($target eq 'tex') {
1633: $currentstring = '\end{description}';
1634: }
1635: return $currentstring;
1636: }
1637:
1638: #-- <dt> tag
1639: sub start_dt {
1640: my ($target,$token) = @_;
1641: my $currentstring = '';
1642: if ($target eq 'web') {
1643: $currentstring = $token->[4];
1644: } elsif ($target eq 'tex') {
1645: $currentstring = '\item[';
1646: }
1647: return $currentstring;
1648: }
1649:
1650: sub end_dt {
1651: my ($target,$token) = @_;
1652: my $currentstring = '';
1653: if ($target eq 'web') {
1654: $currentstring = $token->[2];
1655: } elsif ($target eq 'tex') {
1656: $currentstring = ']';
1657: }
1658: return $currentstring;
1659: }
1660:
1661: #-- <dd> tag
1662: sub start_dd {
1663: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1664: my $currentstring = '';
1665: if ($target eq 'web') {
1666: $currentstring = $token->[4];
1667: } elsif ($target eq 'tex') {
1668: if ($$tagstack[-2] eq 'dl') {
1669: $currentstring = ' \item [] ';
1670: } elsif ($$tagstack[-2] eq 'dt') {
1671: $currentstring = ']';
1672: }
1673: }
1674: return $currentstring;
1675: }
1676:
1677: sub end_dd {
1678: my ($target,$token) = @_;
1679: my $currentstring = '';
1680: if ($target eq 'web') {
1681: $currentstring = $token->[2];
1682: }
1683: return $currentstring;
1684: }
1685:
1686: #-- <table> tag
1687: sub start_table {
1688: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1689: my $textwidth='';
1690: if (not defined @Apache::londefdef::table) {
1691: $textwidth=&recalc($ENV{'form.textwidth'});
1692: $textwidth=~/(\d+\.?\d*)/;
1693: $textwidth=0.95*$1;
1694: } else {
1695: $textwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1696: }
1697: my $currentstring = '';
1698: if ($target eq 'web') {
1699: $currentstring = $token->[4];
1700: } elsif ($target eq 'tex') {
1701: my $aa = {};
1702: push @Apache::londefdef::table, $aa;
1703: $Apache::londefdef::table[-1]{'row_number'} = -1;
1704: #table's width
1705: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1706: if (not defined $TeXwidth) {
1707: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,$safeeval,undef,1);
1708: if ($htmlwidth=~/%/) {
1709: $htmlwidth=~/(\d+)/;
1710: my $value=$1*$textwidth/100;
1711: $Apache::londefdef::table[-1]{'width'}=$value;
1712: } else {
1713: $Apache::londefdef::table[-1]{'width'}=$textwidth;
1714: }
1715: } elsif ($TeXwidth=~/%/) {
1716: $TeXwidth=~/(\d+)/;
1717: my $value=$1*$textwidth/100;
1718: $Apache::londefdef::table[-1]{'width'}=$value;
1719: } else {
1720: $Apache::londefdef::table[-1]{'width'}=$textwidth;
1721: }
1722: #table's border
1723: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval,undef,1);
1724: unless (defined $border) { $border = 0; }
1725: if ($border) {
1726: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
1727: $Apache::londefdef::table[-1]{'vinc'} = '&';
1728: $Apache::londefdef::table[-1]{'vvinc'} = '|';
1729: } else {
1730: $Apache::londefdef::table[-1]{'hinc'} = '';
1731: $Apache::londefdef::table[-1]{'vinc'} = '&';
1732: $Apache::londefdef::table[-1]{'vvinc'} = '';
1733: }
1734: $Apache::londefdef::table[-1]{'output'} = ' \noindent \begin{tabular} ';
1735: $currentstring = '\keephidden{NEW TABLE ENTRY}';
1736: }
1737: return $currentstring;
1738: }
1739:
1740: sub end_table {
1741: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1742: my $currentstring = '';
1743: if ($target eq 'web') {
1744: $currentstring = $token->[2];
1745: } elsif ($target eq 'tex') {
1746: my $inmemory = '';
1747: my $output = '';
1748: #construct header of the table
1749: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
1750: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'counter_columns'};$in++) {
1751: $header_of_table .= $Apache::londefdef::table[-1]{'columns'}[$in].$Apache::londefdef::table[-1]{'vvinc'};
1752: }
1753: $header_of_table .= '}';
1754: #define the length of the table cells
1755: #always starts with TeXwidth (if defined everything else is ignored)
1756: my @length_row_final = split(/,/,$Apache::londefdef::table[-1]{'TeXlengthrow'}[0]);
1757: for (my $in=1;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1758: my @length_row = split(/,/,$Apache::londefdef::table[-1]{'TeXlengthrow'}[$in]);
1759: for (my $jn=0;$jn<=$#length_row;$jn++) {
1760: if ($length_row_final[$jn]<$length_row[$jn]) {$length_row_final[$jn]=$length_row[$jn];}
1761: }
1762: }
1763: #continues trying estimate the width of raw data
1764: my @length_raw_row = split(/,/,$Apache::londefdef::table[-1]{'lengthrow'}[0]);
1765: for (my $in=1;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1766: my @length_row = split(/,/,$Apache::londefdef::table[-1]{'lengthrow'}[$in]);
1767: for (my $jn=0;$jn<=$#length_row;$jn++) {
1768: if ($length_raw_row[$jn]<$length_row[$jn]) {$length_raw_row[$jn]=$length_row[$jn];}
1769: }
1770: }
1771: #comparing of TeXwidth and raw data width
1772: my $available_length=$Apache::londefdef::table[-1]{'width'};
1773: my $needed=0;
1774: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1775: if ($length_row_final[$jn]!=0) {
1776: $available_length=$available_length-$length_row_final[$jn];
1777: $needed++;
1778: }
1779: }
1780: $needed=$#length_row_final-$needed+1;
1781: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1782: if ($length_row_final[$jn]==0) {
1783: if ($length_raw_row[$jn]<$available_length/3) {
1784: $length_row_final[$jn]=$length_raw_row[$jn];
1785: $available_length=$available_length-$length_raw_row[$jn];
1786: $needed--;
1787: }
1788: }
1789: }
1790: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1791: if ($length_row_final[$jn]==0) {
1792: $length_row_final[$jn]=0.9*$available_length/$needed;
1793: }
1794: }
1795: #fill the table
1796: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1797: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1798: my $substituted=$length_row_final[$jn];
1799: $Apache::londefdef::table[-1]{'rowdata'}[$in]=~s/TOBECHANGEDONNUMBER/$substituted mm/;
1800: }
1801: $output .= $Apache::londefdef::table[-1]{'rowdata'}[$in];
1802: chop $output;
1803: $output .= ' \\\\ ';
1804: }
1805: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$output.$Apache::londefdef::table[-1]{'hinc'}.'\end{tabular}\vskip 0 mm ';
1806: if ($#Apache::londefdef::table > 0) {
1807: my $inmemory = $Apache::londefdef::table[-1]{'output'};
1808: pop @Apache::londefdef::table;
1809: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1810: } else {
1811: $currentstring .= $Apache::londefdef::table[-1]{'output'};
1812: pop @Apache::londefdef::table;
1813: undef @Apache::londefdef::table;
1814: }
1815: }
1816: return $currentstring;
1817: }
1818:
1819: #-- <tr> tag
1820: sub start_tr {
1821: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1822: my $currentstring = '';
1823: if ($target eq 'web') {
1824: $currentstring = $token->[4];
1825: } elsif ($target eq 'tex') {
1826: $Apache::londefdef::table[-1]{'row_number'}++;
1827: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
1828: if ($alignchar ne '') {
1829: push @ {$Apache::londefdef::table[-1]{'rows'} }, $alignchar;
1830: } else {
1831: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
1832: }
1833: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
1834: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1835: $Apache::londefdef::table[-1]{'TeXlength'} = '';
1836: $Apache::londefdef::table[-1]{'length'} = '';
1837: }
1838: return $currentstring;
1839: }
1840:
1841: sub end_tr {
1842: my ($target,$token) = @_;
1843: my $currentstring = '';
1844: if ($target eq 'web') {
1845: $currentstring = $token->[2];
1846: } elsif ($target eq 'tex') {
1847: push @{ $Apache::londefdef::table[-1]{'TeXlengthrow'} },$Apache::londefdef::table[-1]{'TeXlength'};
1848: push @{ $Apache::londefdef::table[-1]{'lengthrow'} },$Apache::londefdef::table[-1]{'length'};
1849: }
1850: return $currentstring;
1851: }
1852:
1853: #-- <td> tag
1854: sub start_td {
1855: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1856: my $currentstring = '';
1857: if ($target eq 'web') {
1858: $currentstring = $token->[4];
1859: } elsif ($target eq 'tex') {
1860: my $what_to_push = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
1861: if ($what_to_push eq '') {
1862: $what_to_push = substr($Apache::londefdef::table[-1]{'rows'}[0],0,1);;
1863: }
1864: push @{ $Apache::londefdef::table[-1]{'columns'} }, $what_to_push;
1865: $Apache::londefdef::table[-1]{'counter_columns'}++;
1866: &Apache::lonxml::startredirection();
1867: }
1868: return $currentstring;
1869: }
1870:
1871: sub end_td {
1872: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1873: my $currentstring = '';
1874: if ($target eq 'web') {
1875: $currentstring = $token->[2];
1876: } elsif ($target eq 'tex') {
1877: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
1878: my $data=&Apache::lonxml::endredirection();
1879: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1880: if (defined $TeXwidth) {
1881: my $current_length=&recalc($TeXwidth);
1882: $current_length=~/(\d+)/;
1883: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
1884: $Apache::londefdef::table[-1]{'length'} .= '0,';
1885: } else {
1886: if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
1887: my $current_length=&recalc($1);
1888: $current_length=~/(\d+\.?\d*)/;
1889: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
1890: $Apache::londefdef::table[-1]{'length'} .= '0,';
1891: } else {
1892: $data=~s/^\s+(\S.*)/$1/;
1893: $data=~s/(.*\S)\s+$/$1/;
1894: my $current_length=2*length($data);
1895: $Apache::londefdef::table[-1]{'length'} .= $current_length.',';
1896: $Apache::londefdef::table[-1]{'TeXlength'} .= '0,';
1897: }
1898: }
1899: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
1900: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
1901: }
1902: @{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{TOBECHANGEDONNUMBER}{'.$data.'} '.$Apache::londefdef::table[-1]{'vinc'};
1903: }
1904: return $currentstring;
1905: }
1906:
1907: #-- <th> tag
1908: sub start_th {
1909: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1910: my $currentstring = '';
1911: if ($target eq 'web') {
1912: $currentstring = $token->[4];
1913: } elsif ($target eq 'tex') {
1914: my $what_to_push = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
1915: if ($what_to_push eq '') {
1916: $what_to_push = substr($Apache::londefdef::table[-1]{'rows'}[0],0,1);;
1917: }
1918: push @{ $Apache::londefdef::table[-1]{'columns'} }, $what_to_push;
1919: $Apache::londefdef::table[-1]{'counter_columns'}++;
1920: &Apache::lonxml::startredirection();
1921: }
1922: return $currentstring;
1923: }
1924:
1925: sub end_th {
1926: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1927: my $currentstring = '';
1928: if ($target eq 'web') {
1929: $currentstring = $token->[2];
1930: } elsif ($target eq 'tex') {
1931: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
1932: my $data=&Apache::lonxml::endredirection();
1933: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1934: if (defined $TeXwidth) {
1935: my $current_length=&recalc($TeXwidth);
1936: $current_length=~/(\d+)/;
1937: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
1938: $Apache::londefdef::table[-1]{'length'} .= '0,';
1939: } else {
1940: if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
1941: my $current_length=&recalc($1);
1942: $current_length=~/(\d+)/;
1943: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
1944: $Apache::londefdef::table[-1]{'length'} .= '0,';
1945: } else {
1946: $data=~/^\s*(\S.*)/;
1947: $data=$1;
1948: $data=~/(.*\S)\s*$/;
1949: $data=$1;
1950: my $current_length=2*length($data);
1951: $Apache::londefdef::table[-1]{'length'} .= $current_length.',';
1952: $Apache::londefdef::table[-1]{'TeXlength'} .= '0,';
1953: }
1954: }
1955: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
1956: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
1957: }
1958: $data='\textbf{'.$data.'}';
1959: @{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{TOBECHANGEDONNUMBER}{'.$data.'} '.$Apache::londefdef::table[-1]{'vinc'};
1960: }
1961: return $currentstring;
1962: }
1963: #-- <img> tag
1964: sub start_img {
1965: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1966: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
1967: undef,1);
1968: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
1969: my $currentstring = '';
1970: my $width_param = '';
1971: my $height_param = '';
1972: my $scaling = .3;
1973:
1974: if ($target eq 'web') {
1975: if ($ENV{'browser.imagesuppress'} ne 'on') {
1976: $currentstring = $token->[4];
1977: } else {
1978: my $alttag= &Apache::lonxml::get_param
1979: ('alt',$parstack,$safeeval,undef,1);
1980: unless ($alttag) {
1981: $alttag=&Apache::lonmeta::alttag
1982: ($Apache::lonxml::pwd[-1],$src);
1983: }
1984: $currentstring='[IMAGE: '.$alttag.']';
1985: }
1986: } elsif ($target eq 'tex') {
1987: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1988: &image_replication($src);
1989:
1990: #if original gif/jpg/png file exist do following:
1991: if (-e $src) {
1992: #defines the default size of image
1993: my $image = Image::Magick->new;
1994: my $current_figure = $image->Read($src);
1995: $width_param = $image->Get('width') * $scaling;;
1996: $height_param = $image->Get('height') * $scaling;;
1997: undef $image;
1998: #do we have any specified size of the picture?
1999: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval);
2000: my $TeXheight = &Apache::lonxml::get_param('TeXheight',$parstack,$safeeval);
2001: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
2002: undef,1);
2003: if ($TeXwidth ne '') {
2004: if ($TeXwidth=~/(\d+)\s*\%/) {
2005: $width_param = $1*$ENV{'form.textwidth'}/100;
2006: } else {
2007: $width_param = $TeXwidth;
2008: }
2009: } elsif ($TeXheight ne '') {
2010: $width_param = $TeXheight/$height_param*$width_param;
2011: } elsif ($width ne '') {
2012: $width_param = $width*$scaling;
2013: }
2014: my $file;
2015: my $path;
2016: if ($src =~ m!(.*)/([^/]*)$!) {
2017: $file = $2;
2018: $path = $1.'/';
2019: }
2020: my $newsrc = $src;
2021: $newsrc =~ s/\.(gif|jpg|png)$/.eps/i;
2022: $file=~s/\.(gif|jpg|png)$/.eps/i;
2023: #where can we find the picture?
2024: if (-e $newsrc) {
2025: #eps counterpart for image exist
2026: if ($path) {
2027: $currentstring .= '\vskip 1 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
2028: }
2029: } else {
2030: #there is no eps counterpart for image - check for ps one
2031: $newsrc =~ s/\.eps$/\.ps/;
2032: if (-e $newsrc) {
2033: #ps counterpart for image exist
2034: $file =~ s/\.eps$/\.ps/;
2035: if ($path) {
2036: $currentstring .= '\vskip 1 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
2037: }
2038: } else {
2039: #there aren't eps or ps - so create eps
2040: my $temp_file;
2041: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.dat";
2042: $temp_file = Apache::File->new('>>'.$filename);
2043: print $temp_file "$src\n";
2044: $currentstring .= '\vskip 1 mm \graphicspath{{/home/httpd/prtspool/}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
2045: }
2046: }
2047: } else {
2048: #original image file doesn't exist so check the alt attribute
2049: my $alt =
2050: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2051: unless ($alt) {
2052: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2053: }
2054:
2055: if ($alt) {
2056: $currentstring .= ' '.$alt.' ';
2057: } else {
2058: #<allow> tag will care about replication
2059: }
2060: }
2061: }
2062: return $currentstring;
2063: }
2064:
2065: sub end_img {
2066: my ($target,$token) = @_;
2067: my $currentstring = '';
2068: if ($target eq 'web') {
2069: $currentstring = $token->[2];
2070: } elsif ($target eq 'tex') {
2071: $currentstring = '';
2072: }
2073: return $currentstring;
2074: }
2075:
2076: #-- <applet> tag
2077: sub start_applet {
2078: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2079:
2080: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
2081: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$code;
2082:
2083: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2084: undef,1);
2085: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$archive;
2086:
2087: my $currentstring = '';
2088: if ($target eq 'web') {
2089: if ($ENV{'browser.appletsuppress'} ne 'on') {
2090: $currentstring = $token->[4];
2091: } else {
2092: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2093: $safeeval,undef,1);
2094: unless ($alttag) {
2095: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2096: $code);
2097: }
2098: $currentstring='[APPLET: '.$alttag.']';
2099: }
2100: } elsif ($target eq 'tex') {
2101: $currentstring = " \\begin{figure} ";
2102: }
2103: return $currentstring;
2104: }
2105:
2106: sub end_applet {
2107: my ($target,$token) = @_;
2108: my $currentstring = '';
2109: if ($target eq 'web') {
2110: $currentstring = $token->[2];
2111: } elsif ($target eq 'tex') {
2112: $currentstring = " \\end{figure}";
2113: }
2114: return $currentstring;
2115: }
2116:
2117: #-- <embed> tag
2118: sub start_embed {
2119: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2120: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2121: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
2122: my $currentstring = '';
2123: if ($target eq 'web') {
2124: if ($ENV{'browser.embedsuppress'} ne 'on') {
2125: $currentstring = $token->[4];
2126: } else {
2127: my $alttag=&Apache::lonxml::get_param
2128: ('alt',$parstack,$safeeval,undef,1);
2129: unless ($alttag) {
2130: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2131: }
2132: $currentstring='[EMBED: '.$alttag.']';
2133: }
2134: } elsif ($target eq 'tex') {
2135: $currentstring = " \\begin{figure} ";
2136: }
2137: return $currentstring;
2138: }
2139:
2140: sub end_embed {
2141: my ($target,$token) = @_;
2142: my $currentstring = '';
2143: if ($target eq 'web') {
2144: $currentstring = $token->[2];
2145: } elsif ($target eq 'tex') {
2146: $currentstring = " \\end{figure}";
2147: }
2148: return $currentstring;
2149: }
2150:
2151: #-- <param> tag
2152: sub start_param {
2153: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2154: if (&Apache::lonxml::get_param
2155: ('name',$parstack,$safeeval,undef,1)=~/^cabbase$/i) {
2156: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2157: &Apache::lonxml::get_param('value',$parstack,$safeeval,undef,1);
2158: }
2159: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2160: &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2161: my $currentstring = '';
2162: if ($target eq 'web') {
2163: $currentstring = $token->[4];
2164: } elsif ($target eq 'tex') {
2165: $currentstring = " \\begin{figure} ";
2166: }
2167: return $currentstring;
2168: }
2169:
2170: sub end_param {
2171: my ($target,$token) = @_;
2172: my $currentstring = '';
2173: if ($target eq 'web') {
2174: $currentstring = $token->[2];
2175: } elsif ($target eq 'tex') {
2176: $currentstring = " \\end{figure}";
2177: }
2178: return $currentstring;
2179: }
2180:
2181: #-- <allow> tag
2182: sub start_allow {
2183: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2184: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2185: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
2186: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2187: &Apache::lonnet::clutter($src);
2188: &image_replication($src);
2189: my $result;
2190: if ($target eq 'edit') {
2191: $result .=&Apache::edit::tag_start($target,$token);
2192: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
2193: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
2194: } elsif ($target eq 'modified') {
2195: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2196: $safeeval,'src');
2197: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2198: }
2199: return $result;
2200: }
2201:
2202: sub end_allow {
2203: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2204: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
2205: return '';
2206: }
2207:
2208: #-- Frames
2209: sub start_frameset {
2210: my ($target,$token) = @_;
2211: my $currentstring = '';
2212: if ($target eq 'web') {
2213: if (!$Apache::lonxml::registered) {
2214: $currentstring.='<head>'.
2215: &Apache::lonmenu::registerurl(undef,$target).'</head>';
2216: }
2217: my $onLoad='';
2218: foreach my $key (keys(%{$token->[2]})) {
2219: if ($key =~ /^onload$/i) {
2220: $onLoad.=$token->[2]->{$key}.';';
2221: delete($token->[2]->{$key});
2222: }
2223: }
2224: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
2225: my $onUnload='';
2226: foreach my $key (keys(%{$token->[2]})) {
2227: if ($key =~ /^onunload$/i) {
2228: $onUnload.=$token->[2]->{$key}.';';
2229: delete($token->[2]->{$key});
2230: }
2231: }
2232: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
2233: ';'.$onUnload;
2234:
2235: $currentstring .= '<'.$token->[1];
2236: foreach (keys %{$token->[2]}) {
2237: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
2238: }
2239: $currentstring.='>';
2240: }
2241: return $currentstring;
2242: }
2243:
2244: sub end_frameset {
2245: my ($target,$token) = @_;
2246: my $currentstring = '';
2247: if ($target eq 'web') {
2248: $currentstring = $token->[2];
2249: }
2250: return $currentstring;
2251: }
2252:
2253: #-- <pre>
2254: sub start_pre {
2255: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2256: my $currentstring = '';
2257: if ($target eq 'web') {
2258: $currentstring .= $token->[4];
2259: } elsif ($target eq 'tex') {
2260: $currentstring .= '\begin{verbatim}';
2261: }
2262: return $currentstring;
2263: }
2264:
2265: sub end_pre {
2266: my ($target,$token) = @_;
2267: my $currentstring = '';
2268: if ($target eq 'web') {
2269: $currentstring .= $token->[2];
2270: } elsif ($target eq 'tex') {
2271: $currentstring .= '\end{verbatim}';
2272: }
2273: return $currentstring;
2274: }
2275:
2276: #-- <insert>
2277: sub start_insert {
2278: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2279: my $currentstring = '';
2280: if ($target eq 'web') {
2281: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2282: $currentstring .= '<b>'.$display.'</b>';;
2283: }
2284: return $currentstring;
2285: }
2286:
2287: sub end_insert {
2288: my ($target,$token) = @_;
2289: my $currentstring = '';
2290: if ($target eq 'web') {
2291: $currentstring .= '';
2292: }
2293: return $currentstring;
2294: }
2295:
2296: #-- <externallink>
2297: sub start_externallink {
2298: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2299: my $currentstring = '';
2300: if ($target eq 'web') {
2301: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2302: $currentstring .= '<b>'.$display.'</b>';;
2303: }
2304: return $currentstring;
2305: }
2306:
2307: sub end_externallink {
2308: my ($target,$token) = @_;
2309: my $currentstring = '';
2310: if ($target eq 'web') {
2311: $currentstring .= '';
2312: }
2313: return $currentstring;
2314: }
2315:
2316: #-- <blankspace heigth="">
2317: sub start_blankspace {
2318: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2319: my $currentstring = '';
2320: if ($target eq 'tex') {
2321: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
2322: $currentstring .= '\vskip '.$howmuch.' ';
2323: }
2324: return $currentstring;
2325: }
2326:
2327: sub end_blankspace {
2328: my ($target,$token) = @_;
2329: my $currentstring = '';
2330: if ($target eq 'tex') {
2331: $currentstring .= '';
2332: }
2333: return $currentstring;
2334: }
2335:
2336: #-- <abbr> tag
2337: sub start_abbr {
2338: my ($target,$token) = @_;
2339: my $currentstring = '';
2340: if ($target eq 'web') {
2341: $currentstring = $token->[4];
2342: }
2343: return $currentstring;
2344: }
2345:
2346: sub end_abbr {
2347: my ($target,$token) = @_;
2348: my $currentstring = '';
2349: if ($target eq 'web') {
2350: $currentstring = $token->[2];
2351: }
2352: return $currentstring;
2353: }
2354:
2355: #-- <acronym> tag
2356: sub start_acronym {
2357: my ($target,$token) = @_;
2358: my $currentstring = '';
2359: if ($target eq 'web') {
2360: $currentstring = $token->[4];
2361: }
2362: return $currentstring;
2363: }
2364:
2365: sub end_acronym {
2366: my ($target,$token) = @_;
2367: my $currentstring = '';
2368: if ($target eq 'web') {
2369: $currentstring = $token->[2];
2370: }
2371: return $currentstring;
2372: }
2373:
2374: #-- <area> tag
2375: sub start_area {
2376: my ($target,$token) = @_;
2377: my $currentstring = '';
2378: if ($target eq 'web') {
2379: $currentstring = $token->[4];
2380: }
2381: return $currentstring;
2382: }
2383:
2384: sub end_area {
2385: my ($target,$token) = @_;
2386: my $currentstring = '';
2387: if ($target eq 'web') {
2388: $currentstring = $token->[2];
2389: }
2390: return $currentstring;
2391: }
2392:
2393: #-- <base> tag
2394: sub start_base {
2395: my ($target,$token) = @_;
2396: my $currentstring = '';
2397: if ($target eq 'web') {
2398: $currentstring = $token->[4];
2399: }
2400: return $currentstring;
2401: }
2402:
2403: sub end_base {
2404: my ($target,$token) = @_;
2405: my $currentstring = '';
2406: if ($target eq 'web') {
2407: $currentstring = $token->[2];
2408: }
2409: return $currentstring;
2410: }
2411:
2412: #-- <bdo> tag
2413: sub start_bdo {
2414: my ($target,$token) = @_;
2415: my $currentstring = '';
2416: if ($target eq 'web') {
2417: $currentstring = $token->[4];
2418: }
2419: return $currentstring;
2420: }
2421:
2422: sub end_bdo {
2423: my ($target,$token) = @_;
2424: my $currentstring = '';
2425: if ($target eq 'web') {
2426: $currentstring = $token->[2];
2427: }
2428: return $currentstring;
2429: }
2430:
2431: #-- <bgsound> tag
2432: sub start_bgsound {
2433: my ($target,$token) = @_;
2434: my $currentstring = '';
2435: if ($target eq 'web') {
2436: $currentstring = $token->[4];
2437: }
2438: return $currentstring;
2439: }
2440:
2441: sub end_bgsound {
2442: my ($target,$token) = @_;
2443: my $currentstring = '';
2444: if ($target eq 'web') {
2445: $currentstring = $token->[2];
2446: }
2447: return $currentstring;
2448: }
2449:
2450: #-- <blink> tag
2451: sub start_blink {
2452: my ($target,$token) = @_;
2453: my $currentstring = '';
2454: if ($target eq 'web') {
2455: $currentstring = $token->[4];
2456: }
2457: return $currentstring;
2458: }
2459:
2460: sub end_blink {
2461: my ($target,$token) = @_;
2462: my $currentstring = '';
2463: if ($target eq 'web') {
2464: $currentstring = $token->[2];
2465: }
2466: return $currentstring;
2467: }
2468:
2469: #-- <blockquote> tag
2470: sub start_blockquote {
2471: my ($target,$token) = @_;
2472: my $currentstring = '';
2473: if ($target eq 'web') {
2474: $currentstring = $token->[4];
2475: }
2476: return $currentstring;
2477: }
2478:
2479: sub end_blockquote {
2480: my ($target,$token) = @_;
2481: my $currentstring = '';
2482: if ($target eq 'web') {
2483: $currentstring = $token->[2];
2484: }
2485: return $currentstring;
2486: }
2487:
2488: #-- <button> tag
2489: sub start_button {
2490: my ($target,$token) = @_;
2491: my $currentstring = '';
2492: if ($target eq 'web') {
2493: $currentstring = $token->[4];
2494: }
2495: return $currentstring;
2496: }
2497:
2498: sub end_button {
2499: my ($target,$token) = @_;
2500: my $currentstring = '';
2501: if ($target eq 'web') {
2502: $currentstring = $token->[2];
2503: }
2504: return $currentstring;
2505: }
2506:
2507: #-- <caption> tag
2508: sub start_caption {
2509: my ($target,$token) = @_;
2510: my $currentstring = '';
2511: if ($target eq 'web') {
2512: $currentstring = $token->[4];
2513: }
2514: return $currentstring;
2515: }
2516:
2517: sub end_caption {
2518: my ($target,$token) = @_;
2519: my $currentstring = '';
2520: if ($target eq 'web') {
2521: $currentstring = $token->[2];
2522: }
2523: return $currentstring;
2524: }
2525:
2526: #-- <col> tag
2527: sub start_col {
2528: my ($target,$token) = @_;
2529: my $currentstring = '';
2530: if ($target eq 'web') {
2531: $currentstring = $token->[4];
2532: }
2533: return $currentstring;
2534: }
2535:
2536: sub end_col {
2537: my ($target,$token) = @_;
2538: my $currentstring = '';
2539: if ($target eq 'web') {
2540: $currentstring = $token->[2];
2541: }
2542: return $currentstring;
2543: }
2544:
2545: #-- <colgroup> tag
2546: sub start_colgroup {
2547: my ($target,$token) = @_;
2548: my $currentstring = '';
2549: if ($target eq 'web') {
2550: $currentstring = $token->[4];
2551: }
2552: return $currentstring;
2553: }
2554:
2555: sub end_colgroup {
2556: my ($target,$token) = @_;
2557: my $currentstring = '';
2558: if ($target eq 'web') {
2559: $currentstring = $token->[2];
2560: }
2561: return $currentstring;
2562: }
2563:
2564: #-- <del> tag
2565: sub start_del {
2566: my ($target,$token) = @_;
2567: my $currentstring = '';
2568: if ($target eq 'web') {
2569: $currentstring = $token->[4];
2570: }
2571: return $currentstring;
2572: }
2573:
2574: sub end_del {
2575: my ($target,$token) = @_;
2576: my $currentstring = '';
2577: if ($target eq 'web') {
2578: $currentstring = $token->[2];
2579: }
2580: return $currentstring;
2581: }
2582:
2583: #-- <fieldset> tag
2584: sub start_fieldset {
2585: my ($target,$token) = @_;
2586: my $currentstring = '';
2587: if ($target eq 'web') {
2588: $currentstring = $token->[4];
2589: }
2590: return $currentstring;
2591: }
2592:
2593: sub end_fieldset {
2594: my ($target,$token) = @_;
2595: my $currentstring = '';
2596: if ($target eq 'web') {
2597: $currentstring = $token->[2];
2598: }
2599: return $currentstring;
2600: }
2601:
2602: #-- <frame> tag
2603: sub start_frame {
2604: my ($target,$token) = @_;
2605: my $currentstring = '';
2606: if ($target eq 'web') {
2607: $currentstring = $token->[4];
2608: }
2609: return $currentstring;
2610: }
2611:
2612: sub end_frame {
2613: my ($target,$token) = @_;
2614: my $currentstring = '';
2615: if ($target eq 'web') {
2616: $currentstring = $token->[2];
2617: }
2618: return $currentstring;
2619: }
2620:
2621: #-- <iframe> tag
2622: sub start_iframe {
2623: my ($target,$token) = @_;
2624: my $currentstring = '';
2625: if ($target eq 'web') {
2626: $currentstring = $token->[4];
2627: }
2628: return $currentstring;
2629: }
2630:
2631: sub end_iframe {
2632: my ($target,$token) = @_;
2633: my $currentstring = '';
2634: if ($target eq 'web') {
2635: $currentstring = $token->[2];
2636: }
2637: return $currentstring;
2638: }
2639:
2640: #-- <ins> tag
2641: sub start_ins {
2642: my ($target,$token) = @_;
2643: my $currentstring = '';
2644: if ($target eq 'web') {
2645: $currentstring = $token->[4];
2646: }
2647: return $currentstring;
2648: }
2649:
2650: sub end_ins {
2651: my ($target,$token) = @_;
2652: my $currentstring = '';
2653: if ($target eq 'web') {
2654: $currentstring = $token->[2];
2655: }
2656: return $currentstring;
2657: }
2658:
2659: #-- <isindex> tag
2660: sub start_isindex {
2661: my ($target,$token) = @_;
2662: my $currentstring = '';
2663: if ($target eq 'web') {
2664: $currentstring = $token->[4];
2665: }
2666: return $currentstring;
2667: }
2668:
2669: sub end_isindex {
2670: my ($target,$token) = @_;
2671: my $currentstring = '';
2672: if ($target eq 'web') {
2673: $currentstring = $token->[2];
2674: }
2675: return $currentstring;
2676: }
2677:
2678: #-- <keygen> tag
2679: sub start_keygen {
2680: my ($target,$token) = @_;
2681: my $currentstring = '';
2682: if ($target eq 'web') {
2683: $currentstring = $token->[4];
2684: }
2685: return $currentstring;
2686: }
2687:
2688: sub end_keygen {
2689: my ($target,$token) = @_;
2690: my $currentstring = '';
2691: if ($target eq 'web') {
2692: $currentstring = $token->[2];
2693: }
2694: return $currentstring;
2695: }
2696:
2697: #-- <label> tag
2698: sub start_label {
2699: my ($target,$token) = @_;
2700: my $currentstring = '';
2701: if ($target eq 'web') {
2702: $currentstring = $token->[4];
2703: }
2704: return $currentstring;
2705: }
2706:
2707: sub end_label {
2708: my ($target,$token) = @_;
2709: my $currentstring = '';
2710: if ($target eq 'web') {
2711: $currentstring = $token->[2];
2712: }
2713: return $currentstring;
2714: }
2715:
2716: #-- <layer> tag
2717: sub start_layer {
2718: my ($target,$token) = @_;
2719: my $currentstring = '';
2720: if ($target eq 'web') {
2721: $currentstring = $token->[4];
2722: }
2723: return $currentstring;
2724: }
2725:
2726: sub end_layer {
2727: my ($target,$token) = @_;
2728: my $currentstring = '';
2729: if ($target eq 'web') {
2730: $currentstring = $token->[2];
2731: }
2732: return $currentstring;
2733: }
2734:
2735: #-- <legend> tag
2736: sub start_legend {
2737: my ($target,$token) = @_;
2738: my $currentstring = '';
2739: if ($target eq 'web') {
2740: $currentstring = $token->[4];
2741: }
2742: return $currentstring;
2743: }
2744:
2745: sub end_legend {
2746: my ($target,$token) = @_;
2747: my $currentstring = '';
2748: if ($target eq 'web') {
2749: $currentstring = $token->[2];
2750: }
2751: return $currentstring;
2752: }
2753:
2754: #-- <link> tag
2755: sub start_link {
2756: my ($target,$token) = @_;
2757: my $currentstring = '';
2758: if ($target eq 'web') {
2759: $currentstring = $token->[4];
2760: }
2761: return $currentstring;
2762: }
2763:
2764: sub end_link {
2765: my ($target,$token) = @_;
2766: my $currentstring = '';
2767: if ($target eq 'web') {
2768: $currentstring = $token->[2];
2769: }
2770: return $currentstring;
2771: }
2772:
2773: #-- <marquee> tag
2774: sub start_marquee {
2775: my ($target,$token) = @_;
2776: my $currentstring = '';
2777: if ($target eq 'web') {
2778: $currentstring = $token->[4];
2779: }
2780: return $currentstring;
2781: }
2782:
2783: sub end_marquee {
2784: my ($target,$token) = @_;
2785: my $currentstring = '';
2786: if ($target eq 'web') {
2787: $currentstring = $token->[2];
2788: }
2789: return $currentstring;
2790: }
2791:
2792: #-- <malticol> tag
2793: sub start_malticol {
2794: my ($target,$token) = @_;
2795: my $currentstring = '';
2796: if ($target eq 'web') {
2797: $currentstring = $token->[4];
2798: }
2799: return $currentstring;
2800: }
2801:
2802: sub end_malticol {
2803: my ($target,$token) = @_;
2804: my $currentstring = '';
2805: if ($target eq 'web') {
2806: $currentstring = $token->[2];
2807: }
2808: return $currentstring;
2809: }
2810:
2811: #-- <nobr> tag
2812: sub start_nobr {
2813: my ($target,$token) = @_;
2814: my $currentstring = '';
2815: if ($target eq 'web') {
2816: $currentstring = $token->[4];
2817: }
2818: return $currentstring;
2819: }
2820:
2821: sub end_nobr {
2822: my ($target,$token) = @_;
2823: my $currentstring = '';
2824: if ($target eq 'web') {
2825: $currentstring = $token->[2];
2826: }
2827: return $currentstring;
2828: }
2829:
2830: #-- <noembed> tag
2831: sub start_noembed {
2832: my ($target,$token) = @_;
2833: my $currentstring = '';
2834: if ($target eq 'web') {
2835: $currentstring = $token->[4];
2836: }
2837: return $currentstring;
2838: }
2839:
2840: sub end_noembed {
2841: my ($target,$token) = @_;
2842: my $currentstring = '';
2843: if ($target eq 'web') {
2844: $currentstring = $token->[2];
2845: }
2846: return $currentstring;
2847: }
2848:
2849: #-- <noframes> tag
2850: sub start_noframes {
2851: my ($target,$token) = @_;
2852: my $currentstring = '';
2853: if ($target eq 'web') {
2854: $currentstring = $token->[4];
2855: }
2856: return $currentstring;
2857: }
2858:
2859: sub end_noframes {
2860: my ($target,$token) = @_;
2861: my $currentstring = '';
2862: if ($target eq 'web') {
2863: $currentstring = $token->[2];
2864: }
2865: return $currentstring;
2866: }
2867:
2868: #-- <nolayer> tag
2869: sub start_nolayer {
2870: my ($target,$token) = @_;
2871: my $currentstring = '';
2872: if ($target eq 'web') {
2873: $currentstring = $token->[4];
2874: }
2875: return $currentstring;
2876: }
2877:
2878: sub end_nolayer {
2879: my ($target,$token) = @_;
2880: my $currentstring = '';
2881: if ($target eq 'web') {
2882: $currentstring = $token->[2];
2883: }
2884: return $currentstring;
2885: }
2886:
2887: #-- <noscript> tag
2888: sub start_noscript {
2889: my ($target,$token) = @_;
2890: my $currentstring = '';
2891: if ($target eq 'web') {
2892: $currentstring = $token->[4];
2893: }
2894: return $currentstring;
2895: }
2896:
2897: sub end_noscript {
2898: my ($target,$token) = @_;
2899: my $currentstring = '';
2900: if ($target eq 'web') {
2901: $currentstring = $token->[2];
2902: }
2903: return $currentstring;
2904: }
2905:
2906: #-- <object> tag
2907: sub start_object {
2908: my ($target,$token) = @_;
2909: my $currentstring = '';
2910: if ($target eq 'web') {
2911: $currentstring = $token->[4];
2912: }
2913: return $currentstring;
2914: }
2915:
2916: sub end_object {
2917: my ($target,$token) = @_;
2918: my $currentstring = '';
2919: if ($target eq 'web') {
2920: $currentstring = $token->[2];
2921: }
2922: return $currentstring;
2923: }
2924:
2925: #-- <optgroup> tag
2926: sub start_optgroup {
2927: my ($target,$token) = @_;
2928: my $currentstring = '';
2929: if ($target eq 'web') {
2930: $currentstring = $token->[4];
2931: }
2932: return $currentstring;
2933: }
2934:
2935: sub end_optgroup {
2936: my ($target,$token) = @_;
2937: my $currentstring = '';
2938: if ($target eq 'web') {
2939: $currentstring = $token->[2];
2940: }
2941: return $currentstring;
2942: }
2943:
2944: #-- <samp> tag
2945: sub start_samp {
2946: my ($target,$token) = @_;
2947: my $currentstring = '';
2948: if ($target eq 'web') {
2949: $currentstring = $token->[4];
2950: }
2951: return $currentstring;
2952: }
2953:
2954: sub end_samp {
2955: my ($target,$token) = @_;
2956: my $currentstring = '';
2957: if ($target eq 'web') {
2958: $currentstring = $token->[2];
2959: }
2960: return $currentstring;
2961: }
2962:
2963: #-- <server> tag
2964: sub start_server {
2965: my ($target,$token) = @_;
2966: my $currentstring = '';
2967: if ($target eq 'web') {
2968: $currentstring = $token->[4];
2969: }
2970: return $currentstring;
2971: }
2972:
2973: sub end_server {
2974: my ($target,$token) = @_;
2975: my $currentstring = '';
2976: if ($target eq 'web') {
2977: $currentstring = $token->[2];
2978: }
2979: return $currentstring;
2980: }
2981:
2982: #-- <spacer> tag
2983: sub start_spacer {
2984: my ($target,$token) = @_;
2985: my $currentstring = '';
2986: if ($target eq 'web') {
2987: $currentstring = $token->[4];
2988: }
2989: return $currentstring;
2990: }
2991:
2992: sub end_spacer {
2993: my ($target,$token) = @_;
2994: my $currentstring = '';
2995: if ($target eq 'web') {
2996: $currentstring = $token->[2];
2997: }
2998: return $currentstring;
2999: }
3000:
3001: #-- <span> tag
3002: sub start_span {
3003: my ($target,$token) = @_;
3004: my $currentstring = '';
3005: if ($target eq 'web') {
3006: $currentstring = $token->[4];
3007: }
3008: return $currentstring;
3009: }
3010:
3011: sub end_span {
3012: my ($target,$token) = @_;
3013: my $currentstring = '';
3014: if ($target eq 'web') {
3015: $currentstring = $token->[2];
3016: }
3017: return $currentstring;
3018: }
3019:
3020: #-- <tbody> tag
3021: sub start_tbody {
3022: my ($target,$token) = @_;
3023: my $currentstring = '';
3024: if ($target eq 'web') {
3025: $currentstring = $token->[4];
3026: }
3027: return $currentstring;
3028: }
3029:
3030: sub end_tbody {
3031: my ($target,$token) = @_;
3032: my $currentstring = '';
3033: if ($target eq 'web') {
3034: $currentstring = $token->[2];
3035: }
3036: return $currentstring;
3037: }
3038:
3039: #-- <tfoot> tag
3040: sub start_tfoot {
3041: my ($target,$token) = @_;
3042: my $currentstring = '';
3043: if ($target eq 'web') {
3044: $currentstring = $token->[4];
3045: }
3046: return $currentstring;
3047: }
3048:
3049: sub end_tfoot {
3050: my ($target,$token) = @_;
3051: my $currentstring = '';
3052: if ($target eq 'web') {
3053: $currentstring = $token->[2];
3054: }
3055: return $currentstring;
3056: }
3057:
3058: #-- <thead> tag
3059: sub start_thead {
3060: my ($target,$token) = @_;
3061: my $currentstring = '';
3062: if ($target eq 'web') {
3063: $currentstring = $token->[4];
3064: }
3065: return $currentstring;
3066: }
3067:
3068: sub end_thead {
3069: my ($target,$token) = @_;
3070: my $currentstring = '';
3071: if ($target eq 'web') {
3072: $currentstring = $token->[2];
3073: }
3074: return $currentstring;
3075: }
3076:
3077: #-- <var> tag
3078: sub start_var {
3079: my ($target,$token) = @_;
3080: my $currentstring = '';
3081: if ($target eq 'web') {
3082: $currentstring = $token->[4];
3083: }
3084: return $currentstring;
3085: }
3086:
3087: sub end_var {
3088: my ($target,$token) = @_;
3089: my $currentstring = '';
3090: if ($target eq 'web') {
3091: $currentstring = $token->[2];
3092: }
3093: return $currentstring;
3094: }
3095:
3096: #-- <wbr> tag
3097: sub start_wbr {
3098: my ($target,$token) = @_;
3099: my $currentstring = '';
3100: if ($target eq 'web') {
3101: $currentstring = $token->[4];
3102: }
3103: return $currentstring;
3104: }
3105:
3106: sub end_wbr {
3107: my ($target,$token) = @_;
3108: my $currentstring = '';
3109: if ($target eq 'web') {
3110: $currentstring = $token->[2];
3111: }
3112: return $currentstring;
3113: }
3114:
3115:
3116: #-- <hideweboutput> tag
3117: sub start_hideweboutput {
3118: my ($target,$token) = @_;
3119: if ($target eq 'web') {
3120: &Apache::lonxml::startredirection();
3121: }
3122: return '';
3123: }
3124:
3125: sub end_hideweboutput {
3126: my ($target,$token) = @_;
3127: my $currentstring = '';
3128: if ($target eq 'web') {
3129: $currentstring = &Apache::lonxml::endredirection();
3130: }
3131: return '';
3132: }
3133:
3134:
3135: sub image_replication {
3136: my $src = shift;
3137: if (not -e $src) {
3138: #replicates image itself
3139: &Apache::lonnet::repcopy($src);
3140: #replicates eps or ps
3141: my $newsrc = $src;
3142: $newsrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
3143: if (not -e $newsrc) {
3144: if (&Apache::lonnet::repcopy($newsrc) ne 'OK') {
3145: $newsrc =~ s/\.eps$/\.ps/;
3146: &Apache::lonnet::repcopy($newsrc);
3147: }
3148: }
3149: }
3150: return '';
3151: }
3152:
3153: sub recalc {
3154: my $argument = shift;
3155: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
3156: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
3157: my $value=$1;
3158: my $units=$2;
3159: if ($units eq 'cm') {
3160: $value*=10;
3161: } elsif ($units eq 'in') {
3162: $value*=25.4;
3163: } elsif ($units eq 'pc') {
3164: $value*=(25.4*12/72.27);
3165: } elsif ($units eq 'pt') {
3166: $value*=(25.4/72.27);
3167: }
3168: return $value.' mm';
3169: }
3170:
3171: 1;
3172: __END__
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