1: # The LearningOnline Network with CAPA
2: # Tags Default Definition Module
3: #
4: # $Id: londefdef.pm,v 1.153 2003/07/14 14:29:26 sakharuk Exp $
5: #
6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
20: #
21: # You should have received a copy of the GNU General Public License
22: # along with LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
26: #
27: # http://www.lon-capa.org/
28: #
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: &Apache::lonxml::get_param
369: ('content',$parstack,$safeeval,undef,1).
370: '</'.$name.'>';
371: }
372: }
373: } elsif ($target eq 'tex') {
374: my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
375: my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
376: if ((not defined $content) && (not defined $name)) {
377: &Apache::lonxml::startredirection();
378: }
379: }
380: return $currentstring;
381: }
382:
383: sub end_meta {
384: my ($target,$token,$tagstack,$parstack,$parser) = @_;
385: my $currentstring = '';
386: if ($target eq 'web') {
387: my $args='';
388: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
389: if ($args ne '') {
390: $currentstring = $token->[4];
391: }
392: } elsif ($target eq 'tex') {
393: $currentstring=&Apache::lonxml::endredirection();
394: $currentstring='';
395: }
396: return $currentstring;
397: }
398:
399: # accessrule
400: sub start_accessrule {
401: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
402: my $currentstring = '';
403: my $eff=&Apache::lonxml::get_param
404: ('effect',$parstack,$safeeval,undef,1);
405: my $realm=&Apache::lonxml::get_param
406: ('realm',$parstack,$safeeval,undef,1);
407: my $role=&Apache::lonxml::get_param
408: ('role',$parstack,$safeeval,undef,1);
409: $realm=~s/\s+//g;
410: $realm=~s/\//\_/g;
411: $realm=~s/^\_//;
412: $realm=~s/\W/\;/g;
413: $role=~s/\s+//g;
414: $role=~s/\//\_/g;
415: $role=~s/\W/\;/g;
416: if ($target eq 'web') {
417: my $args='';
418: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
419: if ($args eq '') {
420: &Apache::lonxml::get_all_text("/accessrule",$parser);
421: } else {
422: $currentstring = $token->[4];
423: }
424: }
425: if ($target eq 'meta') {
426: $currentstring='<rule>'.$eff.':'.$realm.':'.$role.'</rule>';
427: }
428: return $currentstring;
429: }
430:
431: sub end_accessrule {
432: my ($target,$token,$tagstack,$parstack,$parser) = @_;
433: my $currentstring = '';
434: if ($target eq 'web') {
435: my $args='';
436: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
437: if ($args ne '') {
438: $currentstring = $token->[4];
439: }
440: }
441: return $currentstring;
442: }
443:
444: #-- <body> tag
445: sub start_body {
446: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
447: my $currentstring = '';
448: if ($target eq 'web') {
449: if (!$Apache::lonxml::registered) {
450: $currentstring.='<head>'.
451: &Apache::lonmenu::registerurl(undef,$target).'</head>';
452: }
453: my $onLoad='';
454: foreach my $key (keys(%{$token->[2]})) {
455: if ($key =~ /^onload$/i) {
456: $onLoad.=$token->[2]->{$key}.';';
457: delete($token->[2]->{$key});
458: }
459: }
460: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
461: my $onUnload='';
462: foreach my $key (keys(%{$token->[2]})) {
463: if ($key =~ /^onunload$/i) {
464: $onUnload.=$token->[2]->{$key}.';';
465: delete($token->[2]->{$key});
466: }
467: }
468: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
469: ';'.$onUnload;
470:
471: $currentstring .= '<'.$token->[1];
472: foreach (keys %{$token->[2]}) {
473: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
474: }
475: $currentstring.='>';
476: if ($ENV{'request.state'} ne 'published') {
477: $currentstring.=(<<EDITBUTTON);
478: <form method="post">
479: <input type="submit" name="editmode" value="Edit" />
480: </form>
481: EDITBUTTON
482: } else {
483: $currentstring.=&Apache::lonmenu::menubuttons(undef,$target,1);
484: }
485: } elsif ($target eq 'tex') {
486: $currentstring = '\begin{document}';
487: }
488: return $currentstring;
489: }
490:
491: sub end_body {
492: my ($target,$token) = @_;
493: my $currentstring = '';
494: if ($target eq 'web') {
495: $currentstring = $token->[2];
496: } elsif ($target eq 'tex') {
497: $currentstring = '\end{document}';
498: }
499: return $currentstring;
500: }
501:
502: #-- <center> tag
503: sub start_center {
504: my ($target,$token) = @_;
505: my $currentstring = '';
506: if ($target eq 'web') {
507: $currentstring = $token->[4];
508: } elsif ($target eq 'tex') {
509: $currentstring = '\begin{center}';
510: }
511: return $currentstring;
512: }
513:
514: sub end_center {
515: my ($target,$token) = @_;
516: my $currentstring = '';
517: if ($target eq 'web') {
518: $currentstring = $token->[2];
519: } elsif ($target eq 'tex') {
520: $currentstring = '\end{center}';
521: }
522: return $currentstring;
523: }
524:
525: #-- <b> tag
526: sub start_b {
527: my ($target,$token) = @_;
528: my $currentstring = '';
529: if ($target eq 'web') {
530: $currentstring = $token->[4];
531: } elsif ($target eq 'tex') {
532: $currentstring = '\textbf{';
533: }
534: return $currentstring;
535: }
536:
537: sub end_b {
538: my ($target,$token) = @_;
539: my $currentstring = '';
540: if ($target eq 'web') {
541: $currentstring = $token->[2];
542: } elsif ($target eq 'tex') {
543: $currentstring = '}';
544: }
545: return $currentstring;
546: }
547:
548: #-- <strong> tag
549: sub start_strong {
550: my ($target,$token) = @_;
551: my $currentstring = '';
552: if ($target eq 'web') {
553: $currentstring = $token->[4];
554: } elsif ($target eq 'tex') {
555: $currentstring = '\textbf{';
556: }
557: return $currentstring;
558: }
559:
560: sub end_strong {
561: my ($target,$token) = @_;
562: my $currentstring = '';
563: if ($target eq 'web') {
564:
565: $currentstring = $token->[2];
566: } elsif ($target eq 'tex') {
567: $currentstring = '}';
568: }
569: return $currentstring;
570: }
571:
572: #-- <h1> tag
573: sub start_h1 {
574: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
575: my $currentstring = '';
576: if ($target eq 'web') {
577: $currentstring .= $token->[4];
578: } elsif ($target eq 'tex') {
579: my $pre;
580: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
581: if (($align eq 'center') || (not defined $align)) {
582: $pre='\begin{center}';
583: } elsif ($align eq 'left') {
584: $pre='\rlap{';
585: } elsif ($align eq 'right') {
586: $pre=' \hfill \llap{';
587: }
588: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
589: if (not defined $TeXsize) {$TeXsize="large";}
590: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
591: } elsif ($target eq 'meta') {
592: $currentstring='<subject>';
593: &start_output();
594: }
595: return $currentstring;
596: }
597:
598: sub end_h1 {
599: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
600: my $currentstring = '';
601: if ($target eq 'web') {
602: $currentstring .= $token->[2];
603: } elsif ($target eq 'tex') {
604: my $post;
605: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
606: if (($align eq 'center') || (not defined $align)) {
607: $post='\end{center}';
608: } elsif ($align eq 'left') {
609: $post='} \hfill'.'\vskip 0 mm ';
610: } elsif ($align eq 'right') {
611: $post='}'.'\vskip 0 mm ';
612: }
613: $currentstring .= '}}'.$post;
614: } elsif ($target eq 'meta') {
615: &end_output();
616: $currentstring='</subject>';
617: }
618: return $currentstring;
619: }
620:
621: #-- <h2> tag
622: sub start_h2 {
623: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
624: my $currentstring = '';
625: if ($target eq 'web') {
626: $currentstring .= $token->[4];
627: } elsif ($target eq 'tex') {
628: my $pre;
629: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
630: if (($align eq 'center') || (not defined $align)) {
631: $pre='\begin{center}';
632: } elsif ($align eq 'left') {
633: $pre='\rlap{';
634: } elsif ($align eq 'right') {
635: $pre=' \hfill \llap{';
636: }
637: my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
638: if (not defined $TeXsize) {$TeXsize="large";}
639: $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
640: }
641: return $currentstring;
642: }
643:
644: sub end_h2 {
645: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
646: my $currentstring = '';
647: if ($target eq 'web') {
648: $currentstring .= $token->[2];
649: } elsif ($target eq 'tex') {
650: my $post;
651: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
652: if (($align eq 'center') || (not defined $align)) {
653: $post='\end{center}';
654: } elsif ($align eq 'left') {
655: $post='} \hfill'.'\vskip 0 mm ';
656: } elsif ($align eq 'right') {
657: $post='}'.'\vskip 0 mm ';
658: }
659: $currentstring .= '}}'.$post;
660: }
661: return $currentstring;
662: }
663:
664: #-- <h3> tag
665: sub start_h3 {
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_h3 {
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: #-- <h4> tag
708: sub start_h4 {
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_h4 {
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: #-- <h5> tag
751: sub start_h5 {
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_h5 {
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: #-- <h6> tag
794: sub start_h6 {
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_h6 {
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: #--- <cite> tag
837: sub start_cite {
838: my ($target,$token) = @_;
839: my $currentstring = '';
840: if ($target eq 'web') {
841: $currentstring .= $token->[4];
842: } elsif ($target eq 'tex') {
843: $currentstring .= "\\textit{";
844: }
845: return $currentstring;
846: }
847:
848: sub end_cite {
849: my ($target,$token) = @_;
850: my $currentstring = '';
851: if ($target eq 'web') {
852: $currentstring .= $token->[2];
853: } elsif ($target eq 'tex') {
854: $currentstring .= "}";
855: }
856: return $currentstring;
857: }
858:
859: #-- <i> tag
860: sub start_i {
861: my ($target,$token) = @_;
862: my $currentstring = '';
863: if ($target eq 'web') {
864: $currentstring .= $token->[4];
865: } elsif ($target eq 'tex') {
866: $currentstring .= '\textit{';
867: }
868: return $currentstring;
869: }
870:
871: sub end_i {
872: my ($target,$token) = @_;
873: my $currentstring = '';
874: if ($target eq 'web') {
875: $currentstring .= $token->[2];
876: } elsif ($target eq 'tex') {
877: $currentstring .= '}';
878: }
879: return $currentstring;
880: }
881:
882: #-- <address> tag
883: sub start_address {
884: my ($target,$token) = @_;
885: my $currentstring = '';
886: if ($target eq 'web') {
887: $currentstring .= $token->[4];
888: } elsif ($target eq 'tex') {
889: $currentstring .= "\\textit{";
890: }
891: return $currentstring;
892: }
893:
894: sub end_address {
895: my ($target,$token) = @_;
896: my $currentstring = '';
897: if ($target eq 'web') {
898: $currentstring .= $token->[2];
899: } elsif ($target eq 'tex') {
900: $currentstring .= "}";
901: }
902: return $currentstring;
903: }
904:
905: #-- <dfn> tag
906: sub start_dfn {
907: my ($target,$token) = @_;
908: my $currentstring = '';
909: if ($target eq 'web') {
910: $currentstring .= $token->[4];
911: } elsif ($target eq 'tex') {
912: $currentstring .= "\\textit{";
913: }
914: return $currentstring;
915: }
916:
917: sub end_dfn {
918: my ($target,$token) = @_;
919: my $currentstring = '';
920: if ($target eq 'web') {
921: $currentstring .= $token->[2];
922: } elsif ($target eq 'tex') {
923: $currentstring .= "}";
924: }
925: return $currentstring;
926: }
927:
928: #-- <tt> tag
929: sub start_tt {
930: my ($target,$token) = @_;
931: my $currentstring = '';
932: if ($target eq 'web') {
933: $currentstring .= $token->[4];
934: } elsif ($target eq 'tex') {
935: $currentstring .= '\texttt{';
936: }
937: return $currentstring;
938: }
939:
940: sub end_tt {
941: my ($target,$token) = @_;
942: my $currentstring = '';
943: if ($target eq 'web') {
944: $currentstring .= $token->[2];
945: } elsif ($target eq 'tex') {
946: $currentstring .= '}';
947: }
948: return $currentstring;
949: }
950:
951: #-- <kbd> tag
952: sub start_kbd {
953: my ($target,$token) = @_;
954: my $currentstring = '';
955: if ($target eq 'web') {
956: $currentstring .= $token->[4];
957: } elsif ($target eq 'tex') {
958: $currentstring .= "\\texttt";
959: }
960: return $currentstring;
961: }
962:
963: sub end_kbd {
964: my ($target,$token) = @_;
965: my $currentstring = '';
966: if ($target eq 'web') {
967: $currentstring .= $token->[2];
968: } elsif ($target eq 'tex') {
969: $currentstring .= "}";
970: }
971: return $currentstring;
972: }
973:
974: #-- <code> tag
975: sub start_code {
976: my ($target,$token) = @_;
977: my $currentstring = '';
978: if ($target eq 'web') {
979: $currentstring .= $token->[4];
980: } elsif ($target eq 'tex') {
981: $currentstring .= '\texttt{';
982: }
983: return $currentstring;
984: }
985:
986: sub end_code {
987: my ($target,$token) = @_;
988: my $currentstring = '';
989: if ($target eq 'web') {
990: $currentstring .= $token->[2];
991: } elsif ($target eq 'tex') {
992: $currentstring .= '}';
993: }
994: return $currentstring;
995: }
996:
997: #-- <em> tag
998: sub start_em {
999: my ($target,$token) = @_;
1000: my $currentstring = '';
1001: if ($target eq 'web') {
1002: $currentstring .= $token->[4];
1003: } elsif ($target eq 'tex') {
1004: $currentstring .= '\emph{';
1005: }
1006: return $currentstring;
1007: }
1008:
1009: sub end_em {
1010: my ($target,$token) = @_;
1011: my $currentstring = '';
1012: if ($target eq 'web') {
1013: $currentstring .= $token->[2];
1014: } elsif ($target eq 'tex') {
1015: $currentstring .= '}';
1016: }
1017: return $currentstring;
1018: }
1019:
1020: #-- <q> tag
1021: sub start_q {
1022: my ($target,$token) = @_;
1023: my $currentstring = '';
1024: if ($target eq 'web') {
1025: $currentstring .= $token->[4];
1026: } elsif ($target eq 'tex') {
1027: $currentstring .= "\\emph{";
1028: }
1029: return $currentstring;
1030: }
1031:
1032: sub end_q {
1033: my ($target,$token) = @_;
1034: my $currentstring = '';
1035: if ($target eq 'web') {
1036: $currentstring .= $token->[2];
1037: } elsif ($target eq 'tex') {
1038: $currentstring .= "}";
1039: }
1040: return $currentstring;
1041: }
1042:
1043: #-- <p> tag
1044: sub start_p {
1045: my ($target,$token) = @_;
1046: my $currentstring = '';
1047: if ($target eq 'web') {
1048: $currentstring .= $token->[4];
1049: } elsif ($target eq 'tex') {
1050: $currentstring .= '\par ';
1051: }
1052: return $currentstring;
1053: }
1054:
1055: sub end_p {
1056: my ($target,$token) = @_;
1057: my $currentstring = '';
1058: if ($target eq 'web') {
1059: $currentstring .= $token->[2];
1060: }
1061: return $currentstring;
1062: }
1063:
1064: #-- <br> tag
1065: sub start_br {
1066: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1067: my $currentstring = '';
1068: if ($target eq 'web') {
1069: $currentstring .= $token->[4];
1070: } elsif ($target eq 'tex') {
1071: if ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') {
1072: $currentstring .= '\vskip 0.2 mm ';
1073: }
1074: }
1075: return $currentstring;
1076: }
1077:
1078: sub end_br {
1079: my ($target,$token) = @_;
1080: my $currentstring = '';
1081: if ($target eq 'web') {
1082: $currentstring .= $token->[2];
1083: }
1084: return $currentstring;
1085: }
1086:
1087: #-- <big> tag
1088: sub start_big {
1089: my ($target,$token) = @_;
1090: my $currentstring = '';
1091: if ($target eq 'web') {
1092: $currentstring .= $token->[4];
1093: } elsif ($target eq 'tex') {
1094: $currentstring .= '{\large ';
1095: }
1096: return $currentstring;
1097: }
1098:
1099: sub end_big {
1100: my ($target,$token) = @_;
1101: my $currentstring = '';
1102: if ($target eq 'web') {
1103: $currentstring .= $token->[2];
1104: } elsif ($target eq 'tex') {
1105: $currentstring .= '}';
1106: }
1107: return $currentstring;
1108: }
1109:
1110: #-- <small> tag
1111: sub start_small {
1112: my ($target,$token) = @_;
1113: my $currentstring = '';
1114: if ($target eq 'web') {
1115: $currentstring .= $token->[4];
1116: } elsif ($target eq 'tex') {
1117: $currentstring .= '{\footnotesize ';
1118: }
1119: return $currentstring;
1120: }
1121:
1122: sub end_small {
1123: my ($target,$token) = @_;
1124: my $currentstring = '';
1125: if ($target eq 'web') {
1126: $currentstring .= $token->[2];
1127: } elsif ($target eq 'tex') {
1128: $currentstring .= '}';
1129: }
1130: return $currentstring;
1131: }
1132:
1133: #-- <basefont> tag
1134: sub start_basefont {
1135: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1136: my $currentstring = '';
1137: if ($target eq 'web') {
1138: $currentstring = $token->[4];
1139: } elsif ($target eq 'tex') {
1140: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1141: if (defined $basesize) {
1142: $currentstring = '{\\'.$basesize.' ';
1143: }
1144: }
1145: return $currentstring;
1146: }
1147:
1148: sub end_basefont {
1149: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1150: my $currentstring = '';
1151: if ($target eq 'web') {
1152: $currentstring = $token->[4];
1153: } elsif ($target eq 'tex') {
1154: my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1155: if (defined $basesize) {
1156: $currentstring = '}';
1157: }
1158: }
1159: return $currentstring;
1160: }
1161:
1162: #-- <font> tag
1163: sub start_font {
1164: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1165: my $currentstring = '';
1166: if ($target eq 'web') {
1167: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1168: if ($face=~/symbol/i) {$Apache::lonxml::prevent_entity_encode++;}
1169: $currentstring = $token->[4];
1170: } elsif ($target eq 'tex') {
1171: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1172: if (defined $fontsize) {
1173: $currentstring = '{\\'.$fontsize.' ';
1174: }
1175: }
1176: return $currentstring;
1177: }
1178:
1179: sub end_font {
1180: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1181: my $currentstring = '';
1182: if ($target eq 'web') {
1183: my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
1184: if ($face=~/symbol/i) {$Apache::lonxml::prevent_entity_encode--;}
1185: $currentstring = $token->[2];
1186: } elsif ($target eq 'tex') {
1187: my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
1188: if (defined $fontsize) {
1189: $currentstring = '}';
1190: }
1191: }
1192: return $currentstring;
1193: }
1194:
1195: #-- <strike> tag
1196: sub start_strike {
1197: my ($target,$token) = @_;
1198: my $currentstring = '';
1199: if ($target eq 'web') {
1200: $currentstring .= $token->[4];
1201: } elsif ($target eq 'tex') {
1202: &Apache::lonxml::startredirection();
1203: }
1204: return $currentstring;
1205: }
1206:
1207: sub end_strike {
1208: my ($target,$token) = @_;
1209: my $currentstring = '';
1210: if ($target eq 'web') {
1211: $currentstring .= $token->[2];
1212: } elsif ($target eq 'tex') {
1213: $currentstring=&Apache::lonxml::endredirection();
1214: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1215: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1216: $currentstring=~s/(\S)\s*$/$1\}/;
1217: }
1218: return $currentstring;
1219: }
1220:
1221: #-- <s> tag
1222: sub start_s {
1223: my ($target,$token) = @_;
1224: my $currentstring = '';
1225: if ($target eq 'web') {
1226: $currentstring .= $token->[4];
1227: } elsif ($target eq 'tex') {
1228: &Apache::lonxml::startredirection();
1229: }
1230: return $currentstring;
1231: }
1232:
1233: sub end_s {
1234: my ($target,$token) = @_;
1235: my $currentstring = '';
1236: if ($target eq 'web') {
1237: $currentstring .= $token->[2];
1238: } elsif ($target eq 'tex') {
1239: $currentstring=&Apache::lonxml::endredirection();
1240: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1241: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1242: $currentstring=~s/(\S)\s*$/$1\}/;
1243: }
1244: return $currentstring;
1245: }
1246:
1247: #-- <sub> tag
1248: sub start_sub {
1249: my ($target,$token) = @_;
1250: my $currentstring = '';
1251: if ($target eq 'web') {
1252: $currentstring .= $token->[4];
1253: } elsif ($target eq 'tex') {
1254: $currentstring .= "\$_{ ";
1255: }
1256: return $currentstring;
1257: }
1258:
1259: sub end_sub {
1260: my ($target,$token) = @_;
1261: my $currentstring = '';
1262: if ($target eq 'web') {
1263: $currentstring .= $token->[2];
1264: } elsif ($target eq 'tex') {
1265: $currentstring .= " }\$";
1266: }
1267: return $currentstring;
1268: }
1269:
1270: #-- <sup> tag
1271: sub start_sup {
1272: my ($target,$token) = @_;
1273: my $currentstring = '';
1274: if ($target eq 'web') {
1275: $currentstring .= $token->[4];
1276: } elsif ($target eq 'tex') {
1277: $currentstring .= "\$^{ ";
1278: }
1279: return $currentstring;
1280: }
1281:
1282: sub end_sup {
1283: my ($target,$token) = @_;
1284: my $currentstring = '';
1285: if ($target eq 'web') {
1286: $currentstring .= $token->[2];
1287: } elsif ($target eq 'tex') {
1288: $currentstring .= " }\$";
1289: }
1290: return $currentstring;
1291: }
1292:
1293: #-- <hr> tag
1294: sub start_hr {
1295: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1296: my $currentstring = '';
1297: if ($target eq 'web') {
1298: $currentstring .= $token->[4];
1299: } elsif ($target eq 'tex') {
1300: my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1301: if (defined $LaTeXwidth) {
1302: if ($LaTeXwidth=~/^%/) {
1303: substr($LaTeXwidth,0,1)='';
1304: $LaTeXwidth=($LaTeXwidth/100).'\textwidth';
1305: }
1306: } else {
1307: $LaTeXwidth ='0.9\textwidth';
1308: }
1309: my ($pre,$post);
1310: my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
1311: if (($align eq 'center') || (not defined $align)) {
1312: $pre=''; $post='';
1313: } elsif ($align eq 'left') {
1314: $pre='\rlap{'; $post='} \hfill';
1315: } elsif ($align eq 'right') {
1316: $pre=' \hfill \llap{'; $post='}';
1317: }
1318: $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
1319: $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
1320: }
1321: return $currentstring;
1322: }
1323:
1324: sub end_hr {
1325: my ($target,$token) = @_;
1326: my $currentstring = '';
1327: if ($target eq 'web') {
1328: $currentstring .= $token->[2];
1329: }
1330: return $currentstring;
1331: }
1332:
1333: #-- <div> tag
1334: sub start_div {
1335: my ($target,$token) = @_;
1336: my $currentstring = '';
1337: if ($target eq 'web') {
1338: $currentstring .= $token->[4];
1339: }
1340: return $currentstring;
1341: }
1342:
1343: sub end_div {
1344: my ($target,$token) = @_;
1345: my $currentstring = '';
1346: if ($target eq 'web') {
1347: $currentstring .= $token->[2];
1348: }
1349: return $currentstring;
1350: }
1351:
1352: #-- <a> tag
1353: sub start_a {
1354: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1355: my $currentstring = '';
1356: if ($target eq 'web') {
1357: $currentstring .= $token->[4];
1358: } elsif ($target eq 'tex') {
1359: my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
1360: $a=~s/([^\\])%/$1\\\%/g;
1361: $currentstring .= '\ref{'.$a.'}';
1362: }
1363: return $currentstring;
1364: }
1365:
1366: sub end_a {
1367: my ($target,$token,$tagstack,$parstack,$safeeval) = @_;
1368: my $currentstring = '';
1369: if ($target eq 'web') {
1370: $currentstring .= $token->[2];
1371: }
1372: return $currentstring;
1373: }
1374:
1375: #-- <li> tag
1376: sub start_li {
1377: my ($target,$token,$tagstack,$parstack,$safeeval) = @_;
1378: my $currentstring = '';
1379: if ($target eq 'web') {
1380: $currentstring = $token->[4];
1381: } elsif ($target eq 'tex') {
1382: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,1);
1383: if ($type=~/circle/) {
1384: $currentstring .= ' \item[o] ';
1385: } elsif ($type=~/square/) {
1386: $currentstring .= ' \item[$\Box$] ';
1387: } elsif ($type ne '') {
1388: $currentstring .= ' \item['.$type.'] ';
1389: } else {
1390: $currentstring .= ' \item ';
1391: }
1392: }
1393: return $currentstring;
1394: }
1395:
1396: sub end_li {
1397: my ($target,$token) = @_;
1398: my $currentstring = '';
1399: if ($target eq 'web') {
1400: $currentstring = $token->[2];
1401: }
1402: return $currentstring;
1403: }
1404:
1405: #-- <u> tag
1406: sub start_u {
1407: my ($target,$token) = @_;
1408: my $currentstring = '';
1409: if ($target eq 'web') {
1410: $currentstring .= $token->[4];
1411: } elsif ($target eq 'tex') {
1412: &Apache::lonxml::startredirection();
1413: }
1414: return $currentstring;
1415: }
1416:
1417: sub end_u {
1418: my ($target,$token) = @_;
1419: my $currentstring = '';
1420: if ($target eq 'web') {
1421: $currentstring .= $token->[2];
1422: } elsif ($target eq 'tex') {
1423: $currentstring=&Apache::lonxml::endredirection();
1424: $currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
1425: $currentstring=~s/^\s*(\S)/\\underline\{$1/;
1426: $currentstring=~s/(\S)\s*$/$1\}/;
1427: }
1428: return $currentstring;
1429: }
1430:
1431: #-- <ul> tag
1432: sub start_ul {
1433: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1434: my $currentstring = '';
1435: if ($target eq 'web') {
1436: $currentstring = $token->[4];
1437: } elsif ($target eq 'tex') {
1438: my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1439: if ($TeXtype eq 'disc') {
1440: $currentstring .= ' \renewcommand{\labelitemi}{$\bullet$}
1441: \renewcommand{\labelitemii}{$\bullet$}
1442: \renewcommand{\labelitemiii}{$\bullet$}
1443: \renewcommand{\labelitemiv}{$\bullet$}';
1444: } elsif ($TeXtype eq 'circle') {
1445: $currentstring .= ' \renewcommand{\labelitemi}{$\circ$}
1446: \renewcommand{\labelitemii}{$\circ$}
1447: \renewcommand{\labelitemiii}{$\circ$}
1448: \renewcommand{\labelitemiv}{$\circ$}';
1449: } elsif ($TeXtype eq 'square') {
1450: $currentstring .= ' \renewcommand{\labelitemi}{$\diamond$}
1451: \renewcommand{\labelitemii}{$\diamond$}
1452: \renewcommand{\labelitemiii}{$\diamond$}
1453: \renewcommand{\labelitemiv}{$\diamond$}';
1454: }
1455: $currentstring .= '\begin{itemize}';
1456: }
1457: return $currentstring;
1458: }
1459:
1460: sub end_ul {
1461: my ($target,$token) = @_;
1462: my $currentstring = '';
1463: if ($target eq 'web') {
1464: $currentstring = $token->[2];
1465: } elsif ($target eq 'tex') {
1466: $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}
1467: \renewcommand{\labelitemii}{$\bullet$}
1468: \renewcommand{\labelitemiii}{$\bullet$}
1469: \renewcommand{\labelitemiv}{$\bullet$}';
1470: }
1471: return $currentstring;
1472: }
1473:
1474: #-- <menu> tag
1475: sub start_menu {
1476: my ($target,$token) = @_;
1477: my $currentstring = '';
1478: if ($target eq 'web') {
1479: $currentstring = $token->[4];
1480: } elsif ($target eq 'tex') {
1481: $currentstring = " \\begin{itemize} ";
1482: }
1483: return $currentstring;
1484: }
1485:
1486: sub end_menu {
1487: my ($target,$token) = @_;
1488: my $currentstring = '';
1489: if ($target eq 'web') {
1490: $currentstring = $token->[2];
1491: } elsif ($target eq 'tex') {
1492: $currentstring = " \\end{itemize}";
1493: }
1494: return $currentstring;
1495: }
1496:
1497: #-- <dir> tag
1498: sub start_dir {
1499: my ($target,$token) = @_;
1500: my $currentstring = '';
1501: if ($target eq 'web') {
1502: $currentstring = $token->[4];
1503: } elsif ($target eq 'tex') {
1504: $currentstring = " \\begin{itemize} ";
1505: }
1506: return $currentstring;
1507: }
1508:
1509: sub end_dir {
1510: my ($target,$token) = @_;
1511: my $currentstring = '';
1512: if ($target eq 'web') {
1513: $currentstring = $token->[2];
1514: } elsif ($target eq 'tex') {
1515: $currentstring = " \\end{itemize}";
1516: }
1517: return $currentstring;
1518: }
1519:
1520: #-- <ol> tag
1521: sub start_ol {
1522: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1523: my $currentstring = '';
1524: if ($target eq 'web') {
1525: $currentstring = $token->[4];
1526: } elsif ($target eq 'tex') {
1527: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
1528: if ($type eq '1') {
1529: $currentstring .= ' \renewcommand{\labelenumi}{\arabic{enumi}.}
1530: \renewcommand{\labelenumii}{\arabic{enumii}.}
1531: \renewcommand{\labelenumiii}{\arabic{enumiii}.}
1532: \renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1533: } elsif ($type eq 'A') {
1534: $currentstring .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}
1535: \renewcommand{\labelenumii}{\Alph{enumii}.}
1536: \renewcommand{\labelenumiii}{\Alph{enumiii}.}
1537: \renewcommand{\labelenumiv}{\Alph{enumiv}.}';
1538: } elsif ($type eq 'a') {
1539: $currentstring .= ' \renewcommand{\labelenumi}{\alph{enumi}.}
1540: \renewcommand{\labelenumii}{\alph{enumii}.}
1541: \renewcommand{\labelenumiii}{\alph{enumiii}.}
1542: \renewcommand{\labelenumiv}{\alph{enumiv}.} ';
1543: } elsif ($type eq 'i') {
1544: $currentstring .= ' \renewcommand{\labelenumi}{\roman{enumi}.}
1545: \renewcommand{\labelenumii}{\roman{enumii}.}
1546: \renewcommand{\labelenumiii}{\roman{enumiii}.}
1547: \renewcommand{\labelenumiv}{\roman{enumiv}.} ';
1548: } elsif ($type eq 'I') {
1549: $currentstring .= ' \renewcommand{\labelenumi}{\Roman{enumi}.}
1550: \renewcommand{\labelenumii}{\Roman{enumii}.}
1551: \renewcommand{\labelenumiii}{\Roman{enumiii}.}
1552: \renewcommand{\labelenumiv}{\Roman{enumiv}.} ';
1553: }
1554: $currentstring .= '\begin{enumerate}';
1555: }
1556: return $currentstring;
1557: }
1558:
1559: sub end_ol {
1560: my ($target,$token) = @_;
1561: my $currentstring = '';
1562: if ($target eq 'web') {
1563: $currentstring = $token->[2];
1564: } elsif ($target eq 'tex') {
1565: $currentstring = '\end{enumerate} \renewcommand{\labelenumi}{\arabic{enumi}.}
1566: \renewcommand{\labelenumii}{\arabic{enumii}.}
1567: \renewcommand{\labelenumiii}{\arabic{enumiii}.}
1568: \renewcommand{\labelenumiv}{\arabic{enumiv}.}';
1569: }
1570: return $currentstring;
1571: }
1572:
1573: #-- <dl> tag
1574: sub start_dl {
1575: my ($target,$token) = @_;
1576: my $currentstring = '';
1577: if ($target eq 'web') {
1578: $currentstring = $token->[4];
1579: } elsif ($target eq 'tex') {
1580: $currentstring = '\begin{description}';
1581: }
1582: return $currentstring;
1583: }
1584:
1585: sub end_dl {
1586: my ($target,$token) = @_;
1587: my $currentstring = '';
1588: if ($target eq 'web') {
1589: $currentstring = $token->[2];
1590: } elsif ($target eq 'tex') {
1591: $currentstring = '\end{description}';
1592: }
1593: return $currentstring;
1594: }
1595:
1596: #-- <dt> tag
1597: sub start_dt {
1598: my ($target,$token) = @_;
1599: my $currentstring = '';
1600: if ($target eq 'web') {
1601: $currentstring = $token->[4];
1602: } elsif ($target eq 'tex') {
1603: $currentstring = '\item[';
1604: }
1605: return $currentstring;
1606: }
1607:
1608: sub end_dt {
1609: my ($target,$token) = @_;
1610: my $currentstring = '';
1611: if ($target eq 'web') {
1612: $currentstring = $token->[2];
1613: } elsif ($target eq 'tex') {
1614: $currentstring = ']';
1615: }
1616: return $currentstring;
1617: }
1618:
1619: #-- <dd> tag
1620: sub start_dd {
1621: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1622: my $currentstring = '';
1623: if ($target eq 'web') {
1624: $currentstring = $token->[4];
1625: } elsif ($target eq 'tex') {
1626: if ($$tagstack[-2] eq 'dl') {
1627: $currentstring = ' \item [] ';
1628: } elsif ($$tagstack[-2] eq 'dt') {
1629: $currentstring = ']';
1630: }
1631: }
1632: return $currentstring;
1633: }
1634:
1635: sub end_dd {
1636: my ($target,$token) = @_;
1637: my $currentstring = '';
1638: if ($target eq 'web') {
1639: $currentstring = $token->[2];
1640: }
1641: return $currentstring;
1642: }
1643:
1644: #-- <table> tag
1645: sub start_table {
1646: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1647: my $textwidth='';
1648: if (not defined @Apache::londefdef::table) {
1649: $textwidth=&recalc($ENV{'form.textwidth'});
1650: $textwidth=~/(\d+\.?\d*)/;
1651: $textwidth=0.95*$1;
1652: } else {
1653: $textwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1654: }
1655: my $currentstring = '';
1656: if ($target eq 'web') {
1657: $currentstring = $token->[4];
1658: } elsif ($target eq 'tex') {
1659: my $aa = {};
1660: push @Apache::londefdef::table, $aa;
1661: $Apache::londefdef::table[-1]{'row_number'} = -1;
1662: #table's width
1663: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1664: if (not defined $TeXwidth) {
1665: my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,$safeeval,undef,1);
1666: if ($htmlwidth=~/%/) {
1667: $htmlwidth=~/(\d+)/;
1668: my $value=$1*$textwidth/100;
1669: $Apache::londefdef::table[-1]{'width'}=$value;
1670: } else {
1671: $Apache::londefdef::table[-1]{'width'}=$textwidth;
1672: }
1673: } elsif ($TeXwidth=~/%/) {
1674: $TeXwidth=~/(\d+)/;
1675: my $value=$1*$textwidth/100;
1676: $Apache::londefdef::table[-1]{'width'}=$value;
1677: } else {
1678: $Apache::londefdef::table[-1]{'width'}=$textwidth;
1679: }
1680: #table's border
1681: my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval,undef,1);
1682: unless (defined $border) { $border = 0; }
1683: if ($border) {
1684: $Apache::londefdef::table[-1]{'hinc'} = '\hline ';
1685: $Apache::londefdef::table[-1]{'vinc'} = '&';
1686: $Apache::londefdef::table[-1]{'vvinc'} = '|';
1687: } else {
1688: $Apache::londefdef::table[-1]{'hinc'} = '';
1689: $Apache::londefdef::table[-1]{'vinc'} = '&';
1690: $Apache::londefdef::table[-1]{'vvinc'} = '';
1691: }
1692: $Apache::londefdef::table[-1]{'output'} = ' \noindent \begin{tabular} ';
1693: $currentstring = '\keephidden{NEW TABLE ENTRY}';
1694: }
1695: return $currentstring;
1696: }
1697:
1698: sub end_table {
1699: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1700: my $currentstring = '';
1701: if ($target eq 'web') {
1702: $currentstring = $token->[2];
1703: } elsif ($target eq 'tex') {
1704: my $inmemory = '';
1705: my $output = '';
1706: #construct header of the table
1707: my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
1708: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'counter_columns'};$in++) {
1709: $header_of_table .= $Apache::londefdef::table[-1]{'columns'}[$in].$Apache::londefdef::table[-1]{'vvinc'};
1710: }
1711: $header_of_table .= '}';
1712: #define the length of the table cells
1713: #always starts with TeXwidth (if defined everything else is ignored)
1714: my @length_row_final = split(/,/,$Apache::londefdef::table[-1]{'TeXlengthrow'}[0]);
1715: for (my $in=1;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1716: my @length_row = split(/,/,$Apache::londefdef::table[-1]{'TeXlengthrow'}[$in]);
1717: for (my $jn=0;$jn<=$#length_row;$jn++) {
1718: if ($length_row_final[$jn]<$length_row[$jn]) {$length_row_final[$jn]=$length_row[$jn];}
1719: }
1720: }
1721: #continues trying estimate the width of raw data
1722: my @length_raw_row = split(/,/,$Apache::londefdef::table[-1]{'lengthrow'}[0]);
1723: for (my $in=1;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1724: my @length_row = split(/,/,$Apache::londefdef::table[-1]{'lengthrow'}[$in]);
1725: for (my $jn=0;$jn<=$#length_row;$jn++) {
1726: if ($length_raw_row[$jn]<$length_row[$jn]) {$length_raw_row[$jn]=$length_row[$jn];}
1727: }
1728: }
1729: #comparing of TeXwidth and raw data width
1730: my $available_length=$Apache::londefdef::table[-1]{'width'};
1731: my $needed=0;
1732: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1733: if ($length_row_final[$jn]!=0) {
1734: $available_length=$available_length-$length_row_final[$jn];
1735: $needed++;
1736: }
1737: }
1738: $needed=$#length_row_final-$needed+1;
1739: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1740: if ($length_row_final[$jn]==0) {
1741: if ($length_raw_row[$jn]<$available_length/3) {
1742: $length_row_final[$jn]=$length_raw_row[$jn];
1743: $available_length=$available_length-$length_raw_row[$jn];
1744: $needed--;
1745: }
1746: }
1747: }
1748: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1749: if ($length_row_final[$jn]==0) {
1750: $length_row_final[$jn]=0.9*$available_length/$needed;
1751: }
1752: }
1753: #fill the table
1754: for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
1755: for (my $jn=0;$jn<=$#length_row_final;$jn++) {
1756: my $substituted=$length_row_final[$jn];
1757: $Apache::londefdef::table[-1]{'rowdata'}[$in]=~s/TOBECHANGEDONNUMBER/$substituted mm/;
1758: }
1759: $output .= $Apache::londefdef::table[-1]{'rowdata'}[$in];
1760: chop $output;
1761: $output .= ' \\\\ ';
1762: }
1763: $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$output.$Apache::londefdef::table[-1]{'hinc'}.'\end{tabular}\vskip 0 mm ';
1764: if ($#Apache::londefdef::table > 0) {
1765: my $inmemory = $Apache::londefdef::table[-1]{'output'};
1766: pop @Apache::londefdef::table;
1767: push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
1768: } else {
1769: $currentstring .= $Apache::londefdef::table[-1]{'output'};
1770: pop @Apache::londefdef::table;
1771: undef @Apache::londefdef::table;
1772: }
1773: }
1774: return $currentstring;
1775: }
1776:
1777: #-- <tr> tag
1778: sub start_tr {
1779: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1780: my $currentstring = '';
1781: if ($target eq 'web') {
1782: $currentstring = $token->[4];
1783: } elsif ($target eq 'tex') {
1784: $Apache::londefdef::table[-1]{'row_number'}++;
1785: my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
1786: if ($alignchar ne '') {
1787: push @ {$Apache::londefdef::table[-1]{'rows'} }, $alignchar;
1788: } else {
1789: push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
1790: }
1791: push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
1792: $Apache::londefdef::table[-1]{'counter_columns'} = -1;
1793: $Apache::londefdef::table[-1]{'TeXlength'} = '';
1794: $Apache::londefdef::table[-1]{'length'} = '';
1795: }
1796: return $currentstring;
1797: }
1798:
1799: sub end_tr {
1800: my ($target,$token) = @_;
1801: my $currentstring = '';
1802: if ($target eq 'web') {
1803: $currentstring = $token->[2];
1804: } elsif ($target eq 'tex') {
1805: push @{ $Apache::londefdef::table[-1]{'TeXlengthrow'} },$Apache::londefdef::table[-1]{'TeXlength'};
1806: push @{ $Apache::londefdef::table[-1]{'lengthrow'} },$Apache::londefdef::table[-1]{'length'};
1807: }
1808: return $currentstring;
1809: }
1810:
1811: #-- <td> tag
1812: sub start_td {
1813: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1814: my $currentstring = '';
1815: if ($target eq 'web') {
1816: $currentstring = $token->[4];
1817: } elsif ($target eq 'tex') {
1818: my $what_to_push = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
1819: if ($what_to_push eq '') {
1820: $what_to_push = substr($Apache::londefdef::table[-1]{'rows'}[0],0,1);;
1821: }
1822: push @{ $Apache::londefdef::table[-1]{'columns'} }, $what_to_push;
1823: $Apache::londefdef::table[-1]{'counter_columns'}++;
1824: &Apache::lonxml::startredirection();
1825: }
1826: return $currentstring;
1827: }
1828:
1829: sub end_td {
1830: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1831: my $currentstring = '';
1832: if ($target eq 'web') {
1833: $currentstring = $token->[2];
1834: } elsif ($target eq 'tex') {
1835: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
1836: my $data=&Apache::lonxml::endredirection();
1837: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1838: if (defined $TeXwidth) {
1839: my $current_length=&recalc($TeXwidth);
1840: $current_length=~/(\d+)/;
1841: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
1842: $Apache::londefdef::table[-1]{'length'} .= '0,';
1843: } else {
1844: if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
1845: my $current_length=&recalc($1);
1846: $current_length=~/(\d+\.?\d*)/;
1847: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
1848: $Apache::londefdef::table[-1]{'length'} .= '0,';
1849: } else {
1850: $data=~s/^\s+(\S.*)/$1/;
1851: $data=~s/(.*\S)\s+$/$1/;
1852: my $current_length=2*length($data);
1853: $Apache::londefdef::table[-1]{'length'} .= $current_length.',';
1854: $Apache::londefdef::table[-1]{'TeXlength'} .= '0,';
1855: }
1856: }
1857: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
1858: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
1859: }
1860: @{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{TOBECHANGEDONNUMBER}{'.$data.'} '.$Apache::londefdef::table[-1]{'vinc'};
1861: }
1862: return $currentstring;
1863: }
1864:
1865: #-- <th> tag
1866: sub start_th {
1867: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1868: my $currentstring = '';
1869: if ($target eq 'web') {
1870: $currentstring = $token->[4];
1871: } elsif ($target eq 'tex') {
1872: my $what_to_push = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
1873: if ($what_to_push eq '') {
1874: $what_to_push = substr($Apache::londefdef::table[-1]{'rows'}[0],0,1);;
1875: }
1876: push @{ $Apache::londefdef::table[-1]{'columns'} }, $what_to_push;
1877: $Apache::londefdef::table[-1]{'counter_columns'}++;
1878: &Apache::lonxml::startredirection();
1879: }
1880: return $currentstring;
1881: }
1882:
1883: sub end_th {
1884: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1885: my $currentstring = '';
1886: if ($target eq 'web') {
1887: $currentstring = $token->[2];
1888: } elsif ($target eq 'tex') {
1889: my $current_row = $Apache::londefdef::table[-1]{'row_number'};
1890: my $data=&Apache::lonxml::endredirection();
1891: my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
1892: if (defined $TeXwidth) {
1893: my $current_length=&recalc($TeXwidth);
1894: $current_length=~/(\d+)/;
1895: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
1896: $Apache::londefdef::table[-1]{'length'} .= '0,';
1897: } else {
1898: if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
1899: my $current_length=&recalc($1);
1900: $current_length=~/(\d+)/;
1901: $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
1902: $Apache::londefdef::table[-1]{'length'} .= '0,';
1903: } else {
1904: $data=~/^\s*(\S.*)/;
1905: $data=$1;
1906: $data=~/(.*\S)\s*$/;
1907: $data=$1;
1908: my $current_length=2*length($data);
1909: $Apache::londefdef::table[-1]{'length'} .= $current_length.',';
1910: $Apache::londefdef::table[-1]{'TeXlength'} .= '0,';
1911: }
1912: }
1913: for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
1914: $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
1915: }
1916: $data='\textbf{'.$data.'}';
1917: @{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{TOBECHANGEDONNUMBER}{'.$data.'} '.$Apache::londefdef::table[-1]{'vinc'};
1918: }
1919: return $currentstring;
1920: }
1921: #-- <img> tag
1922: sub start_img {
1923: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
1924: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
1925: undef,1);
1926: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
1927: my $currentstring = '';
1928: my $width_param = '';
1929: my $height_param = '';
1930: my $scaling = .3;
1931:
1932: if ($target eq 'web') {
1933: if ($ENV{'browser.imagesuppress'} ne 'on') {
1934: $currentstring = $token->[4];
1935: } else {
1936: my $alttag= &Apache::lonxml::get_param
1937: ('alt',$parstack,$safeeval,undef,1);
1938: unless ($alttag) {
1939: $alttag=&Apache::lonmeta::alttag
1940: ($Apache::lonxml::pwd[-1],$src);
1941: }
1942: $currentstring='[IMAGE: '.$alttag.']';
1943: }
1944: } elsif ($target eq 'tex') {
1945: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
1946: &image_replication($src);
1947:
1948: #if original gif/jpg/png file exist do following:
1949: if (-e $src) {
1950: #defines the default size of image
1951: my $image = Image::Magick->new;
1952: my $current_figure = $image->Read($src);
1953: $width_param = $image->Get('width') * $scaling;;
1954: $height_param = $image->Get('height') * $scaling;;
1955: undef $image;
1956: #do we have any specified size of the picture?
1957: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval);
1958: my $TeXheight = &Apache::lonxml::get_param('TeXheight',$parstack,$safeeval);
1959: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
1960: undef,1);
1961: if ($TeXwidth ne '') {
1962: if ($TeXwidth=~/(\d+)\s*\%/) {
1963: $width_param = $1*$ENV{'form.textwidth'}/100;
1964: } else {
1965: $width_param = $TeXwidth;
1966: }
1967: } elsif ($TeXheight ne '') {
1968: $width_param = $TeXheight/$height_param*$width_param;
1969: } elsif ($width ne '') {
1970: $width_param = $width*$scaling;
1971: }
1972: my $file;
1973: my $path;
1974: if ($src =~ m!(.*)/([^/]*)$!) {
1975: $file = $2;
1976: $path = $1.'/';
1977: }
1978: my $newsrc = $src;
1979: $newsrc =~ s/\.(gif|jpg|png)$/.eps/i;
1980: $file=~s/\.(gif|jpg|png)$/.eps/i;
1981: #where can we find the picture?
1982: if (-e $newsrc) {
1983: #eps counterpart for image exist
1984: if ($path) {
1985: $currentstring .= '\vskip 1 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
1986: }
1987: } else {
1988: #there is no eps counterpart for image - check for ps one
1989: $newsrc =~ s/\.eps$/\.ps/;
1990: if (-e $newsrc) {
1991: #ps counterpart for image exist
1992: $file =~ s/\.eps$/\.ps/;
1993: if ($path) {
1994: $currentstring .= '\vskip 1 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
1995: }
1996: } else {
1997: #there aren't eps or ps - so create eps
1998: my $temp_file;
1999: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.dat";
2000: $temp_file = Apache::File->new('>>'.$filename);
2001: print $temp_file "$src\n";
2002: $currentstring .= '\vskip 1 mm \graphicspath{{/home/httpd/prtspool/}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
2003: }
2004: }
2005: } else {
2006: #original image file doesn't exist so check the alt attribute
2007: my $alt =
2008: &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
2009: unless ($alt) {
2010: $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2011: }
2012:
2013: if ($alt) {
2014: $currentstring .= ' '.$alt.' ';
2015: } else {
2016: #<allow> tag will care about replication
2017: }
2018: }
2019: }
2020: return $currentstring;
2021: }
2022:
2023: sub end_img {
2024: my ($target,$token) = @_;
2025: my $currentstring = '';
2026: if ($target eq 'web') {
2027: $currentstring = $token->[2];
2028: } elsif ($target eq 'tex') {
2029: $currentstring = '';
2030: }
2031: return $currentstring;
2032: }
2033:
2034: #-- <applet> tag
2035: sub start_applet {
2036: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2037:
2038: my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
2039: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$code;
2040:
2041: my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
2042: undef,1);
2043: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$archive;
2044:
2045: my $currentstring = '';
2046: if ($target eq 'web') {
2047: if ($ENV{'browser.appletsuppress'} ne 'on') {
2048: $currentstring = $token->[4];
2049: } else {
2050: my $alttag= &Apache::lonxml::get_param('alt',$parstack,
2051: $safeeval,undef,1);
2052: unless ($alttag) {
2053: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
2054: $code);
2055: }
2056: $currentstring='[APPLET: '.$alttag.']';
2057: }
2058: } elsif ($target eq 'tex') {
2059: $currentstring = " \\begin{figure} ";
2060: }
2061: return $currentstring;
2062: }
2063:
2064: sub end_applet {
2065: my ($target,$token) = @_;
2066: my $currentstring = '';
2067: if ($target eq 'web') {
2068: $currentstring = $token->[2];
2069: } elsif ($target eq 'tex') {
2070: $currentstring = " \\end{figure}";
2071: }
2072: return $currentstring;
2073: }
2074:
2075: #-- <embed> tag
2076: sub start_embed {
2077: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2078: my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2079: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
2080: my $currentstring = '';
2081: if ($target eq 'web') {
2082: if ($ENV{'browser.embedsuppress'} ne 'on') {
2083: $currentstring = $token->[4];
2084: } else {
2085: my $alttag=&Apache::lonxml::get_param
2086: ('alt',$parstack,$safeeval,undef,1);
2087: unless ($alttag) {
2088: $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
2089: }
2090: $currentstring='[EMBED: '.$alttag.']';
2091: }
2092: } elsif ($target eq 'tex') {
2093: $currentstring = " \\begin{figure} ";
2094: }
2095: return $currentstring;
2096: }
2097:
2098: sub end_embed {
2099: my ($target,$token) = @_;
2100: my $currentstring = '';
2101: if ($target eq 'web') {
2102: $currentstring = $token->[2];
2103: } elsif ($target eq 'tex') {
2104: $currentstring = " \\end{figure}";
2105: }
2106: return $currentstring;
2107: }
2108:
2109: #-- <param> tag
2110: sub start_param {
2111: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2112: if (&Apache::lonxml::get_param
2113: ('name',$parstack,$safeeval,undef,1)=~/^cabbase$/i) {
2114: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2115: &Apache::lonxml::get_param('value',$parstack,$safeeval,undef,1);
2116: }
2117: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2118: &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2119: my $currentstring = '';
2120: if ($target eq 'web') {
2121: $currentstring = $token->[4];
2122: } elsif ($target eq 'tex') {
2123: $currentstring = " \\begin{figure} ";
2124: }
2125: return $currentstring;
2126: }
2127:
2128: sub end_param {
2129: my ($target,$token) = @_;
2130: my $currentstring = '';
2131: if ($target eq 'web') {
2132: $currentstring = $token->[2];
2133: } elsif ($target eq 'tex') {
2134: $currentstring = " \\end{figure}";
2135: }
2136: return $currentstring;
2137: }
2138:
2139: #-- <allow> tag
2140: sub start_allow {
2141: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2142: my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
2143: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
2144: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
2145: &Apache::lonnet::clutter($src);
2146: &image_replication($src);
2147: my $result;
2148: if ($target eq 'edit') {
2149: $result .=&Apache::edit::tag_start($target,$token);
2150: $result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
2151: $result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
2152: } elsif ($target eq 'modified') {
2153: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2154: $safeeval,'src');
2155: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2156: }
2157: return $result;
2158: }
2159:
2160: sub end_allow {
2161: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2162: if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
2163: return '';
2164: }
2165:
2166: #-- Frames
2167: sub start_frameset {
2168: my ($target,$token) = @_;
2169: my $currentstring = '';
2170: if ($target eq 'web') {
2171: if (!$Apache::lonxml::registered) {
2172: $currentstring.='<head>'.
2173: &Apache::lonmenu::registerurl(undef,$target).'</head>';
2174: }
2175: my $onLoad='';
2176: foreach my $key (keys(%{$token->[2]})) {
2177: if ($key =~ /^onload$/i) {
2178: $onLoad.=$token->[2]->{$key}.';';
2179: delete($token->[2]->{$key});
2180: }
2181: }
2182: $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
2183: my $onUnload='';
2184: foreach my $key (keys(%{$token->[2]})) {
2185: if ($key =~ /^onunload$/i) {
2186: $onUnload.=$token->[2]->{$key}.';';
2187: delete($token->[2]->{$key});
2188: }
2189: }
2190: $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
2191: ';'.$onUnload;
2192:
2193: $currentstring .= '<'.$token->[1];
2194: foreach (keys %{$token->[2]}) {
2195: $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
2196: }
2197: $currentstring.='>';
2198: }
2199: return $currentstring;
2200: }
2201:
2202: sub end_frameset {
2203: my ($target,$token) = @_;
2204: my $currentstring = '';
2205: if ($target eq 'web') {
2206: $currentstring = $token->[2];
2207: }
2208: return $currentstring;
2209: }
2210:
2211: #-- <pre>
2212: sub start_pre {
2213: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2214: my $currentstring = '';
2215: if ($target eq 'web') {
2216: $currentstring .= $token->[4];
2217: } elsif ($target eq 'tex') {
2218: $currentstring .= '\begin{verbatim}';
2219: }
2220: return $currentstring;
2221: }
2222:
2223: sub end_pre {
2224: my ($target,$token) = @_;
2225: my $currentstring = '';
2226: if ($target eq 'web') {
2227: $currentstring .= $token->[2];
2228: } elsif ($target eq 'tex') {
2229: $currentstring .= '\end{verbatim}';
2230: }
2231: return $currentstring;
2232: }
2233:
2234: #-- <insert>
2235: sub start_insert {
2236: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2237: my $currentstring = '';
2238: if ($target eq 'web') {
2239: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2240: $currentstring .= '<b>'.$display.'</b>';;
2241: }
2242: return $currentstring;
2243: }
2244:
2245: sub end_insert {
2246: my ($target,$token) = @_;
2247: my $currentstring = '';
2248: if ($target eq 'web') {
2249: $currentstring .= '';
2250: }
2251: return $currentstring;
2252: }
2253:
2254: #-- <externallink>
2255: sub start_externallink {
2256: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2257: my $currentstring = '';
2258: if ($target eq 'web') {
2259: my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
2260: $currentstring .= '<b>'.$display.'</b>';;
2261: }
2262: return $currentstring;
2263: }
2264:
2265: sub end_externallink {
2266: my ($target,$token) = @_;
2267: my $currentstring = '';
2268: if ($target eq 'web') {
2269: $currentstring .= '';
2270: }
2271: return $currentstring;
2272: }
2273:
2274: #-- <blankspace heigth="">
2275: sub start_blankspace {
2276: my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
2277: my $currentstring = '';
2278: if ($target eq 'tex') {
2279: my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
2280: $currentstring .= '\vskip '.$howmuch.' ';
2281: }
2282: return $currentstring;
2283: }
2284:
2285: sub end_blankspace {
2286: my ($target,$token) = @_;
2287: my $currentstring = '';
2288: if ($target eq 'tex') {
2289: $currentstring .= '';
2290: }
2291: return $currentstring;
2292: }
2293:
2294: #-- <abbr> tag
2295: sub start_abbr {
2296: my ($target,$token) = @_;
2297: my $currentstring = '';
2298: if ($target eq 'web') {
2299: $currentstring = $token->[4];
2300: }
2301: return $currentstring;
2302: }
2303:
2304: sub end_abbr {
2305: my ($target,$token) = @_;
2306: my $currentstring = '';
2307: if ($target eq 'web') {
2308: $currentstring = $token->[2];
2309: }
2310: return $currentstring;
2311: }
2312:
2313: #-- <acronym> tag
2314: sub start_acronym {
2315: my ($target,$token) = @_;
2316: my $currentstring = '';
2317: if ($target eq 'web') {
2318: $currentstring = $token->[4];
2319: }
2320: return $currentstring;
2321: }
2322:
2323: sub end_acronym {
2324: my ($target,$token) = @_;
2325: my $currentstring = '';
2326: if ($target eq 'web') {
2327: $currentstring = $token->[2];
2328: }
2329: return $currentstring;
2330: }
2331:
2332: #-- <area> tag
2333: sub start_area {
2334: my ($target,$token) = @_;
2335: my $currentstring = '';
2336: if ($target eq 'web') {
2337: $currentstring = $token->[4];
2338: }
2339: return $currentstring;
2340: }
2341:
2342: sub end_area {
2343: my ($target,$token) = @_;
2344: my $currentstring = '';
2345: if ($target eq 'web') {
2346: $currentstring = $token->[2];
2347: }
2348: return $currentstring;
2349: }
2350:
2351: #-- <base> tag
2352: sub start_base {
2353: my ($target,$token) = @_;
2354: my $currentstring = '';
2355: if ($target eq 'web') {
2356: $currentstring = $token->[4];
2357: }
2358: return $currentstring;
2359: }
2360:
2361: sub end_base {
2362: my ($target,$token) = @_;
2363: my $currentstring = '';
2364: if ($target eq 'web') {
2365: $currentstring = $token->[2];
2366: }
2367: return $currentstring;
2368: }
2369:
2370: #-- <bdo> tag
2371: sub start_bdo {
2372: my ($target,$token) = @_;
2373: my $currentstring = '';
2374: if ($target eq 'web') {
2375: $currentstring = $token->[4];
2376: }
2377: return $currentstring;
2378: }
2379:
2380: sub end_bdo {
2381: my ($target,$token) = @_;
2382: my $currentstring = '';
2383: if ($target eq 'web') {
2384: $currentstring = $token->[2];
2385: }
2386: return $currentstring;
2387: }
2388:
2389: #-- <bgsound> tag
2390: sub start_bgsound {
2391: my ($target,$token) = @_;
2392: my $currentstring = '';
2393: if ($target eq 'web') {
2394: $currentstring = $token->[4];
2395: }
2396: return $currentstring;
2397: }
2398:
2399: sub end_bgsound {
2400: my ($target,$token) = @_;
2401: my $currentstring = '';
2402: if ($target eq 'web') {
2403: $currentstring = $token->[2];
2404: }
2405: return $currentstring;
2406: }
2407:
2408: #-- <blink> tag
2409: sub start_blink {
2410: my ($target,$token) = @_;
2411: my $currentstring = '';
2412: if ($target eq 'web') {
2413: $currentstring = $token->[4];
2414: }
2415: return $currentstring;
2416: }
2417:
2418: sub end_blink {
2419: my ($target,$token) = @_;
2420: my $currentstring = '';
2421: if ($target eq 'web') {
2422: $currentstring = $token->[2];
2423: }
2424: return $currentstring;
2425: }
2426:
2427: #-- <blockquote> tag
2428: sub start_blockquote {
2429: my ($target,$token) = @_;
2430: my $currentstring = '';
2431: if ($target eq 'web') {
2432: $currentstring = $token->[4];
2433: }
2434: return $currentstring;
2435: }
2436:
2437: sub end_blockquote {
2438: my ($target,$token) = @_;
2439: my $currentstring = '';
2440: if ($target eq 'web') {
2441: $currentstring = $token->[2];
2442: }
2443: return $currentstring;
2444: }
2445:
2446: #-- <button> tag
2447: sub start_button {
2448: my ($target,$token) = @_;
2449: my $currentstring = '';
2450: if ($target eq 'web') {
2451: $currentstring = $token->[4];
2452: }
2453: return $currentstring;
2454: }
2455:
2456: sub end_button {
2457: my ($target,$token) = @_;
2458: my $currentstring = '';
2459: if ($target eq 'web') {
2460: $currentstring = $token->[2];
2461: }
2462: return $currentstring;
2463: }
2464:
2465: #-- <caption> tag
2466: sub start_caption {
2467: my ($target,$token) = @_;
2468: my $currentstring = '';
2469: if ($target eq 'web') {
2470: $currentstring = $token->[4];
2471: }
2472: return $currentstring;
2473: }
2474:
2475: sub end_caption {
2476: my ($target,$token) = @_;
2477: my $currentstring = '';
2478: if ($target eq 'web') {
2479: $currentstring = $token->[2];
2480: }
2481: return $currentstring;
2482: }
2483:
2484: #-- <col> tag
2485: sub start_col {
2486: my ($target,$token) = @_;
2487: my $currentstring = '';
2488: if ($target eq 'web') {
2489: $currentstring = $token->[4];
2490: }
2491: return $currentstring;
2492: }
2493:
2494: sub end_col {
2495: my ($target,$token) = @_;
2496: my $currentstring = '';
2497: if ($target eq 'web') {
2498: $currentstring = $token->[2];
2499: }
2500: return $currentstring;
2501: }
2502:
2503: #-- <colgroup> tag
2504: sub start_colgroup {
2505: my ($target,$token) = @_;
2506: my $currentstring = '';
2507: if ($target eq 'web') {
2508: $currentstring = $token->[4];
2509: }
2510: return $currentstring;
2511: }
2512:
2513: sub end_colgroup {
2514: my ($target,$token) = @_;
2515: my $currentstring = '';
2516: if ($target eq 'web') {
2517: $currentstring = $token->[2];
2518: }
2519: return $currentstring;
2520: }
2521:
2522: #-- <del> tag
2523: sub start_del {
2524: my ($target,$token) = @_;
2525: my $currentstring = '';
2526: if ($target eq 'web') {
2527: $currentstring = $token->[4];
2528: }
2529: return $currentstring;
2530: }
2531:
2532: sub end_del {
2533: my ($target,$token) = @_;
2534: my $currentstring = '';
2535: if ($target eq 'web') {
2536: $currentstring = $token->[2];
2537: }
2538: return $currentstring;
2539: }
2540:
2541: #-- <fieldset> tag
2542: sub start_fieldset {
2543: my ($target,$token) = @_;
2544: my $currentstring = '';
2545: if ($target eq 'web') {
2546: $currentstring = $token->[4];
2547: }
2548: return $currentstring;
2549: }
2550:
2551: sub end_fieldset {
2552: my ($target,$token) = @_;
2553: my $currentstring = '';
2554: if ($target eq 'web') {
2555: $currentstring = $token->[2];
2556: }
2557: return $currentstring;
2558: }
2559:
2560: #-- <frame> tag
2561: sub start_frame {
2562: my ($target,$token) = @_;
2563: my $currentstring = '';
2564: if ($target eq 'web') {
2565: $currentstring = $token->[4];
2566: }
2567: return $currentstring;
2568: }
2569:
2570: sub end_frame {
2571: my ($target,$token) = @_;
2572: my $currentstring = '';
2573: if ($target eq 'web') {
2574: $currentstring = $token->[2];
2575: }
2576: return $currentstring;
2577: }
2578:
2579: #-- <iframe> tag
2580: sub start_iframe {
2581: my ($target,$token) = @_;
2582: my $currentstring = '';
2583: if ($target eq 'web') {
2584: $currentstring = $token->[4];
2585: }
2586: return $currentstring;
2587: }
2588:
2589: sub end_iframe {
2590: my ($target,$token) = @_;
2591: my $currentstring = '';
2592: if ($target eq 'web') {
2593: $currentstring = $token->[2];
2594: }
2595: return $currentstring;
2596: }
2597:
2598: #-- <ins> tag
2599: sub start_ins {
2600: my ($target,$token) = @_;
2601: my $currentstring = '';
2602: if ($target eq 'web') {
2603: $currentstring = $token->[4];
2604: }
2605: return $currentstring;
2606: }
2607:
2608: sub end_ins {
2609: my ($target,$token) = @_;
2610: my $currentstring = '';
2611: if ($target eq 'web') {
2612: $currentstring = $token->[2];
2613: }
2614: return $currentstring;
2615: }
2616:
2617: #-- <isindex> tag
2618: sub start_isindex {
2619: my ($target,$token) = @_;
2620: my $currentstring = '';
2621: if ($target eq 'web') {
2622: $currentstring = $token->[4];
2623: }
2624: return $currentstring;
2625: }
2626:
2627: sub end_isindex {
2628: my ($target,$token) = @_;
2629: my $currentstring = '';
2630: if ($target eq 'web') {
2631: $currentstring = $token->[2];
2632: }
2633: return $currentstring;
2634: }
2635:
2636: #-- <keygen> tag
2637: sub start_keygen {
2638: my ($target,$token) = @_;
2639: my $currentstring = '';
2640: if ($target eq 'web') {
2641: $currentstring = $token->[4];
2642: }
2643: return $currentstring;
2644: }
2645:
2646: sub end_keygen {
2647: my ($target,$token) = @_;
2648: my $currentstring = '';
2649: if ($target eq 'web') {
2650: $currentstring = $token->[2];
2651: }
2652: return $currentstring;
2653: }
2654:
2655: #-- <label> tag
2656: sub start_label {
2657: my ($target,$token) = @_;
2658: my $currentstring = '';
2659: if ($target eq 'web') {
2660: $currentstring = $token->[4];
2661: }
2662: return $currentstring;
2663: }
2664:
2665: sub end_label {
2666: my ($target,$token) = @_;
2667: my $currentstring = '';
2668: if ($target eq 'web') {
2669: $currentstring = $token->[2];
2670: }
2671: return $currentstring;
2672: }
2673:
2674: #-- <layer> tag
2675: sub start_layer {
2676: my ($target,$token) = @_;
2677: my $currentstring = '';
2678: if ($target eq 'web') {
2679: $currentstring = $token->[4];
2680: }
2681: return $currentstring;
2682: }
2683:
2684: sub end_layer {
2685: my ($target,$token) = @_;
2686: my $currentstring = '';
2687: if ($target eq 'web') {
2688: $currentstring = $token->[2];
2689: }
2690: return $currentstring;
2691: }
2692:
2693: #-- <legend> tag
2694: sub start_legend {
2695: my ($target,$token) = @_;
2696: my $currentstring = '';
2697: if ($target eq 'web') {
2698: $currentstring = $token->[4];
2699: }
2700: return $currentstring;
2701: }
2702:
2703: sub end_legend {
2704: my ($target,$token) = @_;
2705: my $currentstring = '';
2706: if ($target eq 'web') {
2707: $currentstring = $token->[2];
2708: }
2709: return $currentstring;
2710: }
2711:
2712: #-- <link> tag
2713: sub start_link {
2714: my ($target,$token) = @_;
2715: my $currentstring = '';
2716: if ($target eq 'web') {
2717: $currentstring = $token->[4];
2718: }
2719: return $currentstring;
2720: }
2721:
2722: sub end_link {
2723: my ($target,$token) = @_;
2724: my $currentstring = '';
2725: if ($target eq 'web') {
2726: $currentstring = $token->[2];
2727: }
2728: return $currentstring;
2729: }
2730:
2731: #-- <marquee> tag
2732: sub start_marquee {
2733: my ($target,$token) = @_;
2734: my $currentstring = '';
2735: if ($target eq 'web') {
2736: $currentstring = $token->[4];
2737: }
2738: return $currentstring;
2739: }
2740:
2741: sub end_marquee {
2742: my ($target,$token) = @_;
2743: my $currentstring = '';
2744: if ($target eq 'web') {
2745: $currentstring = $token->[2];
2746: }
2747: return $currentstring;
2748: }
2749:
2750: #-- <malticol> tag
2751: sub start_malticol {
2752: my ($target,$token) = @_;
2753: my $currentstring = '';
2754: if ($target eq 'web') {
2755: $currentstring = $token->[4];
2756: }
2757: return $currentstring;
2758: }
2759:
2760: sub end_malticol {
2761: my ($target,$token) = @_;
2762: my $currentstring = '';
2763: if ($target eq 'web') {
2764: $currentstring = $token->[2];
2765: }
2766: return $currentstring;
2767: }
2768:
2769: #-- <nobr> tag
2770: sub start_nobr {
2771: my ($target,$token) = @_;
2772: my $currentstring = '';
2773: if ($target eq 'web') {
2774: $currentstring = $token->[4];
2775: }
2776: return $currentstring;
2777: }
2778:
2779: sub end_nobr {
2780: my ($target,$token) = @_;
2781: my $currentstring = '';
2782: if ($target eq 'web') {
2783: $currentstring = $token->[2];
2784: }
2785: return $currentstring;
2786: }
2787:
2788: #-- <noembed> tag
2789: sub start_noembed {
2790: my ($target,$token) = @_;
2791: my $currentstring = '';
2792: if ($target eq 'web') {
2793: $currentstring = $token->[4];
2794: }
2795: return $currentstring;
2796: }
2797:
2798: sub end_noembed {
2799: my ($target,$token) = @_;
2800: my $currentstring = '';
2801: if ($target eq 'web') {
2802: $currentstring = $token->[2];
2803: }
2804: return $currentstring;
2805: }
2806:
2807: #-- <noframes> tag
2808: sub start_noframes {
2809: my ($target,$token) = @_;
2810: my $currentstring = '';
2811: if ($target eq 'web') {
2812: $currentstring = $token->[4];
2813: }
2814: return $currentstring;
2815: }
2816:
2817: sub end_noframes {
2818: my ($target,$token) = @_;
2819: my $currentstring = '';
2820: if ($target eq 'web') {
2821: $currentstring = $token->[2];
2822: }
2823: return $currentstring;
2824: }
2825:
2826: #-- <nolayer> tag
2827: sub start_nolayer {
2828: my ($target,$token) = @_;
2829: my $currentstring = '';
2830: if ($target eq 'web') {
2831: $currentstring = $token->[4];
2832: }
2833: return $currentstring;
2834: }
2835:
2836: sub end_nolayer {
2837: my ($target,$token) = @_;
2838: my $currentstring = '';
2839: if ($target eq 'web') {
2840: $currentstring = $token->[2];
2841: }
2842: return $currentstring;
2843: }
2844:
2845: #-- <noscript> tag
2846: sub start_noscript {
2847: my ($target,$token) = @_;
2848: my $currentstring = '';
2849: if ($target eq 'web') {
2850: $currentstring = $token->[4];
2851: }
2852: return $currentstring;
2853: }
2854:
2855: sub end_noscript {
2856: my ($target,$token) = @_;
2857: my $currentstring = '';
2858: if ($target eq 'web') {
2859: $currentstring = $token->[2];
2860: }
2861: return $currentstring;
2862: }
2863:
2864: #-- <object> tag
2865: sub start_object {
2866: my ($target,$token) = @_;
2867: my $currentstring = '';
2868: if ($target eq 'web') {
2869: $currentstring = $token->[4];
2870: }
2871: return $currentstring;
2872: }
2873:
2874: sub end_object {
2875: my ($target,$token) = @_;
2876: my $currentstring = '';
2877: if ($target eq 'web') {
2878: $currentstring = $token->[2];
2879: }
2880: return $currentstring;
2881: }
2882:
2883: #-- <optgroup> tag
2884: sub start_optgroup {
2885: my ($target,$token) = @_;
2886: my $currentstring = '';
2887: if ($target eq 'web') {
2888: $currentstring = $token->[4];
2889: }
2890: return $currentstring;
2891: }
2892:
2893: sub end_optgroup {
2894: my ($target,$token) = @_;
2895: my $currentstring = '';
2896: if ($target eq 'web') {
2897: $currentstring = $token->[2];
2898: }
2899: return $currentstring;
2900: }
2901:
2902: #-- <samp> tag
2903: sub start_samp {
2904: my ($target,$token) = @_;
2905: my $currentstring = '';
2906: if ($target eq 'web') {
2907: $currentstring = $token->[4];
2908: }
2909: return $currentstring;
2910: }
2911:
2912: sub end_samp {
2913: my ($target,$token) = @_;
2914: my $currentstring = '';
2915: if ($target eq 'web') {
2916: $currentstring = $token->[2];
2917: }
2918: return $currentstring;
2919: }
2920:
2921: #-- <server> tag
2922: sub start_server {
2923: my ($target,$token) = @_;
2924: my $currentstring = '';
2925: if ($target eq 'web') {
2926: $currentstring = $token->[4];
2927: }
2928: return $currentstring;
2929: }
2930:
2931: sub end_server {
2932: my ($target,$token) = @_;
2933: my $currentstring = '';
2934: if ($target eq 'web') {
2935: $currentstring = $token->[2];
2936: }
2937: return $currentstring;
2938: }
2939:
2940: #-- <spacer> tag
2941: sub start_spacer {
2942: my ($target,$token) = @_;
2943: my $currentstring = '';
2944: if ($target eq 'web') {
2945: $currentstring = $token->[4];
2946: }
2947: return $currentstring;
2948: }
2949:
2950: sub end_spacer {
2951: my ($target,$token) = @_;
2952: my $currentstring = '';
2953: if ($target eq 'web') {
2954: $currentstring = $token->[2];
2955: }
2956: return $currentstring;
2957: }
2958:
2959: #-- <span> tag
2960: sub start_span {
2961: my ($target,$token) = @_;
2962: my $currentstring = '';
2963: if ($target eq 'web') {
2964: $currentstring = $token->[4];
2965: }
2966: return $currentstring;
2967: }
2968:
2969: sub end_span {
2970: my ($target,$token) = @_;
2971: my $currentstring = '';
2972: if ($target eq 'web') {
2973: $currentstring = $token->[2];
2974: }
2975: return $currentstring;
2976: }
2977:
2978: #-- <tbody> tag
2979: sub start_tbody {
2980: my ($target,$token) = @_;
2981: my $currentstring = '';
2982: if ($target eq 'web') {
2983: $currentstring = $token->[4];
2984: }
2985: return $currentstring;
2986: }
2987:
2988: sub end_tbody {
2989: my ($target,$token) = @_;
2990: my $currentstring = '';
2991: if ($target eq 'web') {
2992: $currentstring = $token->[2];
2993: }
2994: return $currentstring;
2995: }
2996:
2997: #-- <tfoot> tag
2998: sub start_tfoot {
2999: my ($target,$token) = @_;
3000: my $currentstring = '';
3001: if ($target eq 'web') {
3002: $currentstring = $token->[4];
3003: }
3004: return $currentstring;
3005: }
3006:
3007: sub end_tfoot {
3008: my ($target,$token) = @_;
3009: my $currentstring = '';
3010: if ($target eq 'web') {
3011: $currentstring = $token->[2];
3012: }
3013: return $currentstring;
3014: }
3015:
3016: #-- <thead> tag
3017: sub start_thead {
3018: my ($target,$token) = @_;
3019: my $currentstring = '';
3020: if ($target eq 'web') {
3021: $currentstring = $token->[4];
3022: }
3023: return $currentstring;
3024: }
3025:
3026: sub end_thead {
3027: my ($target,$token) = @_;
3028: my $currentstring = '';
3029: if ($target eq 'web') {
3030: $currentstring = $token->[2];
3031: }
3032: return $currentstring;
3033: }
3034:
3035: #-- <var> tag
3036: sub start_var {
3037: my ($target,$token) = @_;
3038: my $currentstring = '';
3039: if ($target eq 'web') {
3040: $currentstring = $token->[4];
3041: }
3042: return $currentstring;
3043: }
3044:
3045: sub end_var {
3046: my ($target,$token) = @_;
3047: my $currentstring = '';
3048: if ($target eq 'web') {
3049: $currentstring = $token->[2];
3050: }
3051: return $currentstring;
3052: }
3053:
3054: #-- <wbr> tag
3055: sub start_wbr {
3056: my ($target,$token) = @_;
3057: my $currentstring = '';
3058: if ($target eq 'web') {
3059: $currentstring = $token->[4];
3060: }
3061: return $currentstring;
3062: }
3063:
3064: sub end_wbr {
3065: my ($target,$token) = @_;
3066: my $currentstring = '';
3067: if ($target eq 'web') {
3068: $currentstring = $token->[2];
3069: }
3070: return $currentstring;
3071: }
3072:
3073:
3074: #-- <hideweboutput> tag
3075: sub start_hideweboutput {
3076: my ($target,$token) = @_;
3077: if ($target eq 'web') {
3078: &Apache::lonxml::startredirection();
3079: }
3080: return '';
3081: }
3082:
3083: sub end_hideweboutput {
3084: my ($target,$token) = @_;
3085: my $currentstring = '';
3086: if ($target eq 'web') {
3087: $currentstring = &Apache::lonxml::endredirection();
3088: }
3089: return '';
3090: }
3091:
3092:
3093: sub image_replication {
3094: my $src = shift;
3095: if (not -e $src) {
3096: #replicates image itself
3097: &Apache::lonnet::repcopy($src);
3098: #replicates eps or ps
3099: my $newsrc = $src;
3100: $newsrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
3101: if (not -e $newsrc) {
3102: if (&Apache::lonnet::repcopy($newsrc) ne 'OK') {
3103: $newsrc =~ s/\.eps$/\.ps/;
3104: &Apache::lonnet::repcopy($newsrc);
3105: }
3106: }
3107: }
3108: return '';
3109: }
3110:
3111: sub recalc {
3112: my $argument = shift;
3113: if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
3114: $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
3115: my $value=$1;
3116: my $units=$2;
3117: if ($units eq 'cm') {
3118: $value*=10;
3119: } elsif ($units eq 'in') {
3120: $value*=25.4;
3121: } elsif ($units eq 'pc') {
3122: $value*=(25.4*12/72.27);
3123: } elsif ($units eq 'pt') {
3124: $value*=(25.4/72.27);
3125: }
3126: return $value.' mm';
3127: }
3128:
3129: 1;
3130: __END__
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